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![Cosimo Cecchi](/assets/img/avatar_default.png)
2009-01-28 Cosimo Cecchi <cosimoc@gnome.org> * eel-editable-label.c: (eel_editable_label_move_cursor): make sure we take care about UTF-8/byte conversion when we move around the cursor (#569165). svn path=/trunk/; revision=14890
4411 lines
125 KiB
C
4411 lines
125 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include <config.h>
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#include <math.h>
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#include <string.h>
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#include "eel-editable-label.h"
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#include "eel-i18n.h"
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#include "eel-marshal.h"
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#include "eel-accessibility.h"
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#include <libgail-util/gailmisc.h>
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#include <pango/pango.h>
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#include <gtk/gtk.h>
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#include <gdk/gdkkeysyms.h>
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enum {
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MOVE_CURSOR,
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POPULATE_POPUP,
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DELETE_FROM_CURSOR,
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CUT_CLIPBOARD,
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COPY_CLIPBOARD,
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PASTE_CLIPBOARD,
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TOGGLE_OVERWRITE,
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LAST_SIGNAL
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};
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enum {
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PROP_0,
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PROP_TEXT,
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PROP_JUSTIFY,
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PROP_WRAP,
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PROP_CURSOR_POSITION,
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PROP_SELECTION_BOUND
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};
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static guint signals[LAST_SIGNAL] = { 0 };
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static void eel_editable_label_editable_init (GtkEditableClass *iface);
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static void eel_editable_label_class_init (EelEditableLabelClass *klass);
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static void eel_editable_label_init (EelEditableLabel *label);
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static void eel_editable_label_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec);
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static void eel_editable_label_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec);
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static void eel_editable_label_finalize (GObject *object);
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static void eel_editable_label_size_request (GtkWidget *widget,
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GtkRequisition *requisition);
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static void eel_editable_label_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation);
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static void eel_editable_label_state_changed (GtkWidget *widget,
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GtkStateType state);
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static void eel_editable_label_style_set (GtkWidget *widget,
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GtkStyle *previous_style);
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static void eel_editable_label_direction_changed (GtkWidget *widget,
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GtkTextDirection previous_dir);
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static gint eel_editable_label_expose (GtkWidget *widget,
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GdkEventExpose *event);
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static void eel_editable_label_realize (GtkWidget *widget);
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static void eel_editable_label_unrealize (GtkWidget *widget);
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static void eel_editable_label_map (GtkWidget *widget);
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static void eel_editable_label_unmap (GtkWidget *widget);
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static gint eel_editable_label_button_press (GtkWidget *widget,
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GdkEventButton *event);
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static gint eel_editable_label_button_release (GtkWidget *widget,
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GdkEventButton *event);
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static gint eel_editable_label_motion (GtkWidget *widget,
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GdkEventMotion *event);
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static gint eel_editable_label_key_press (GtkWidget *widget,
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GdkEventKey *event);
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static gint eel_editable_label_key_release (GtkWidget *widget,
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GdkEventKey *event);
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static gint eel_editable_label_focus_in (GtkWidget *widget,
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GdkEventFocus *event);
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static gint eel_editable_label_focus_out (GtkWidget *widget,
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GdkEventFocus *event);
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static AtkObject *eel_editable_label_get_accessible (GtkWidget *widget);
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static void eel_editable_label_commit_cb (GtkIMContext *context,
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const gchar *str,
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EelEditableLabel *label);
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static void eel_editable_label_preedit_changed_cb (GtkIMContext *context,
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EelEditableLabel *label);
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static gboolean eel_editable_label_retrieve_surrounding_cb (GtkIMContext *context,
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EelEditableLabel *label);
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static gboolean eel_editable_label_delete_surrounding_cb (GtkIMContext *slave,
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gint offset,
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gint n_chars,
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EelEditableLabel *label);
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static void eel_editable_label_clear_layout (EelEditableLabel *label);
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static void eel_editable_label_recompute (EelEditableLabel *label);
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static void eel_editable_label_ensure_layout (EelEditableLabel *label,
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gboolean include_preedit);
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static void eel_editable_label_select_region_index (EelEditableLabel *label,
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gint anchor_index,
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gint end_index);
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static gboolean eel_editable_label_focus (GtkWidget *widget,
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GtkDirectionType direction);
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static void eel_editable_label_move_cursor (EelEditableLabel *label,
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GtkMovementStep step,
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gint count,
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gboolean extend_selection);
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static void eel_editable_label_delete_from_cursor (EelEditableLabel *label,
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GtkDeleteType type,
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gint count);
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static void eel_editable_label_copy_clipboard (EelEditableLabel *label);
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static void eel_editable_label_cut_clipboard (EelEditableLabel *label);
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static void eel_editable_label_paste (EelEditableLabel *label,
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GdkAtom selection);
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static void eel_editable_label_paste_clipboard (EelEditableLabel *label);
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static void eel_editable_label_select_all (EelEditableLabel *label);
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static void eel_editable_label_do_popup (EelEditableLabel *label,
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GdkEventButton *event);
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static void eel_editable_label_toggle_overwrite (EelEditableLabel *label);
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static gint eel_editable_label_move_forward_word (EelEditableLabel *label,
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gint start);
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static gint eel_editable_label_move_backward_word (EelEditableLabel *label,
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gint start);
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static void eel_editable_label_reset_im_context (EelEditableLabel *label);
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static void eel_editable_label_check_cursor_blink (EelEditableLabel *label);
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static void eel_editable_label_pend_cursor_blink (EelEditableLabel *label);
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/* Editable implementation: */
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static void editable_insert_text_emit (GtkEditable *editable,
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const gchar *new_text,
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gint new_text_length,
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gint *position);
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static void editable_delete_text_emit (GtkEditable *editable,
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gint start_pos,
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gint end_pos);
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static void editable_insert_text (GtkEditable *editable,
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const gchar *new_text,
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gint new_text_length,
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gint *position);
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static void editable_delete_text (GtkEditable *editable,
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gint start_pos,
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gint end_pos);
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static gchar * editable_get_chars (GtkEditable *editable,
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gint start_pos,
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gint end_pos);
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static void editable_set_selection_bounds (GtkEditable *editable,
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gint start,
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gint end);
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static gboolean editable_get_selection_bounds (GtkEditable *editable,
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gint *start,
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gint *end);
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static void editable_real_set_position (GtkEditable *editable,
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gint position);
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static gint editable_get_position (GtkEditable *editable);
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static GdkGC * make_cursor_gc (GtkWidget *widget,
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const gchar *property_name,
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GdkColor *fallback);
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static GtkMiscClass *parent_class = NULL;
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GType
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eel_editable_label_get_type (void)
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{
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static GType label_type = 0;
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if (!label_type)
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{
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const GTypeInfo label_info =
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{
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sizeof (EelEditableLabelClass),
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NULL, /* base_init */
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NULL, /* base_finalize */
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(GClassInitFunc) eel_editable_label_class_init,
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NULL, /* class_finalize */
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NULL, /* class_data */
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sizeof (EelEditableLabel),
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32, /* n_preallocs */
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(GInstanceInitFunc) eel_editable_label_init,
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};
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const GInterfaceInfo editable_info =
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{
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(GInterfaceInitFunc) eel_editable_label_editable_init, /* interface_init */
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NULL, /* interface_finalize */
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NULL /* interface_data */
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};
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label_type = g_type_register_static (GTK_TYPE_MISC, "EelEditableLabel", &label_info, 0);
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g_type_add_interface_static (label_type,
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GTK_TYPE_EDITABLE,
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&editable_info);
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}
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return label_type;
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}
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static void
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add_move_binding (GtkBindingSet *binding_set,
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guint keyval,
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guint modmask,
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GtkMovementStep step,
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gint count)
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{
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g_assert ((modmask & GDK_SHIFT_MASK) == 0);
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gtk_binding_entry_add_signal (binding_set, keyval, modmask,
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"move_cursor", 3,
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G_TYPE_ENUM, step,
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G_TYPE_INT, count,
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G_TYPE_BOOLEAN, FALSE);
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/* Selection-extending version */
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gtk_binding_entry_add_signal (binding_set, keyval, modmask | GDK_SHIFT_MASK,
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"move_cursor", 3,
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G_TYPE_ENUM, step,
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G_TYPE_INT, count,
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G_TYPE_BOOLEAN, TRUE);
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}
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static void
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eel_editable_label_class_init (EelEditableLabelClass *class)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (class);
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GtkObjectClass *object_class = GTK_OBJECT_CLASS (class);
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
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GtkBindingSet *binding_set;
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parent_class = gtk_type_class (GTK_TYPE_MISC);
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gobject_class->set_property = eel_editable_label_set_property;
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gobject_class->get_property = eel_editable_label_get_property;
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gobject_class->finalize = eel_editable_label_finalize;
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widget_class->size_request = eel_editable_label_size_request;
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widget_class->size_allocate = eel_editable_label_size_allocate;
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widget_class->state_changed = eel_editable_label_state_changed;
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widget_class->style_set = eel_editable_label_style_set;
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widget_class->direction_changed = eel_editable_label_direction_changed;
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widget_class->expose_event = eel_editable_label_expose;
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widget_class->realize = eel_editable_label_realize;
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widget_class->unrealize = eel_editable_label_unrealize;
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widget_class->map = eel_editable_label_map;
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widget_class->unmap = eel_editable_label_unmap;
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widget_class->button_press_event = eel_editable_label_button_press;
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widget_class->button_release_event = eel_editable_label_button_release;
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widget_class->motion_notify_event = eel_editable_label_motion;
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widget_class->focus = eel_editable_label_focus;
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widget_class->key_press_event = eel_editable_label_key_press;
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widget_class->key_release_event = eel_editable_label_key_release;
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widget_class->focus_in_event = eel_editable_label_focus_in;
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widget_class->focus_out_event = eel_editable_label_focus_out;
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widget_class->get_accessible = eel_editable_label_get_accessible;
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class->move_cursor = eel_editable_label_move_cursor;
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class->delete_from_cursor = eel_editable_label_delete_from_cursor;
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class->copy_clipboard = eel_editable_label_copy_clipboard;
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class->cut_clipboard = eel_editable_label_cut_clipboard;
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class->paste_clipboard = eel_editable_label_paste_clipboard;
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class->toggle_overwrite = eel_editable_label_toggle_overwrite;
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signals[MOVE_CURSOR] =
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g_signal_new ("move_cursor",
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G_TYPE_FROM_CLASS (object_class),
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G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
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G_STRUCT_OFFSET (EelEditableLabelClass, move_cursor),
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NULL, NULL,
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eel_marshal_VOID__ENUM_INT_BOOLEAN,
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G_TYPE_NONE, 3, GTK_TYPE_MOVEMENT_STEP, G_TYPE_INT, G_TYPE_BOOLEAN);
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signals[COPY_CLIPBOARD] =
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g_signal_new ("copy_clipboard",
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G_TYPE_FROM_CLASS (object_class),
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G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
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G_STRUCT_OFFSET (EelEditableLabelClass, copy_clipboard),
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NULL, NULL,
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g_cclosure_marshal_VOID__VOID,
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G_TYPE_NONE, 0);
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signals[POPULATE_POPUP] =
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g_signal_new ("populate_popup",
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G_TYPE_FROM_CLASS (object_class),
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (EelEditableLabelClass, populate_popup),
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NULL, NULL,
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g_cclosure_marshal_VOID__OBJECT,
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G_TYPE_NONE, 1, GTK_TYPE_MENU);
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signals[DELETE_FROM_CURSOR] =
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g_signal_new ("delete_from_cursor",
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G_TYPE_FROM_CLASS (object_class),
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G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
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G_STRUCT_OFFSET (EelEditableLabelClass, delete_from_cursor),
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NULL, NULL,
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eel_marshal_VOID__ENUM_INT,
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G_TYPE_NONE, 2, GTK_TYPE_DELETE_TYPE, G_TYPE_INT);
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signals[CUT_CLIPBOARD] =
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g_signal_new ("cut_clipboard",
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G_TYPE_FROM_CLASS (object_class),
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G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
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G_STRUCT_OFFSET (EelEditableLabelClass, cut_clipboard),
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NULL, NULL,
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g_cclosure_marshal_VOID__VOID,
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G_TYPE_NONE, 0);
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signals[PASTE_CLIPBOARD] =
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g_signal_new ("paste_clipboard",
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G_TYPE_FROM_CLASS (object_class),
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G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
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G_STRUCT_OFFSET (EelEditableLabelClass, paste_clipboard),
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NULL, NULL,
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g_cclosure_marshal_VOID__VOID,
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G_TYPE_NONE, 0);
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signals[TOGGLE_OVERWRITE] =
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g_signal_new ("toggle_overwrite",
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G_TYPE_FROM_CLASS (object_class),
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G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
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G_STRUCT_OFFSET (EelEditableLabelClass, toggle_overwrite),
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NULL, NULL,
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g_cclosure_marshal_VOID__VOID,
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G_TYPE_NONE, 0);
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g_object_class_install_property (G_OBJECT_CLASS(object_class),
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PROP_TEXT,
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g_param_spec_string ("text",
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_("Text"),
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_("The text of the label."),
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NULL,
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G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class,
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PROP_JUSTIFY,
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g_param_spec_enum ("justify",
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_("Justification"),
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_("The alignment of the lines in the text of the label relative to each other. This does NOT affect the alignment of the label within its allocation. See GtkMisc::xalign for that."),
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GTK_TYPE_JUSTIFICATION,
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GTK_JUSTIFY_LEFT,
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G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class,
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PROP_WRAP,
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g_param_spec_boolean ("wrap",
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_("Line wrap"),
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_("If set, wrap lines if the text becomes too wide."),
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FALSE,
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G_PARAM_READWRITE));
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g_object_class_install_property (gobject_class,
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PROP_CURSOR_POSITION,
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g_param_spec_int ("cursor_position",
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_("Cursor Position"),
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_("The current position of the insertion cursor in chars."),
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0,
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G_MAXINT,
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0,
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G_PARAM_READABLE));
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g_object_class_install_property (gobject_class,
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PROP_SELECTION_BOUND,
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g_param_spec_int ("selection_bound",
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_("Selection Bound"),
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_("The position of the opposite end of the selection from the cursor in chars."),
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0,
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G_MAXINT,
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0,
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G_PARAM_READABLE));
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|
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/*
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* Key bindings
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*/
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binding_set = gtk_binding_set_by_class (class);
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/* Moving the insertion point */
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add_move_binding (binding_set, GDK_Right, 0,
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GTK_MOVEMENT_VISUAL_POSITIONS, 1);
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add_move_binding (binding_set, GDK_Left, 0,
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GTK_MOVEMENT_VISUAL_POSITIONS, -1);
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add_move_binding (binding_set, GDK_KP_Right, 0,
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GTK_MOVEMENT_VISUAL_POSITIONS, 1);
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add_move_binding (binding_set, GDK_KP_Left, 0,
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GTK_MOVEMENT_VISUAL_POSITIONS, -1);
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add_move_binding (binding_set, GDK_f, GDK_CONTROL_MASK,
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GTK_MOVEMENT_LOGICAL_POSITIONS, 1);
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add_move_binding (binding_set, GDK_b, GDK_CONTROL_MASK,
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GTK_MOVEMENT_LOGICAL_POSITIONS, -1);
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add_move_binding (binding_set, GDK_Right, GDK_CONTROL_MASK,
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GTK_MOVEMENT_WORDS, 1);
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add_move_binding (binding_set, GDK_Left, GDK_CONTROL_MASK,
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GTK_MOVEMENT_WORDS, -1);
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add_move_binding (binding_set, GDK_KP_Right, GDK_CONTROL_MASK,
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GTK_MOVEMENT_WORDS, 1);
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add_move_binding (binding_set, GDK_KP_Left, GDK_CONTROL_MASK,
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GTK_MOVEMENT_WORDS, -1);
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add_move_binding (binding_set, GDK_a, GDK_CONTROL_MASK,
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GTK_MOVEMENT_PARAGRAPH_ENDS, -1);
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|
|
add_move_binding (binding_set, GDK_e, GDK_CONTROL_MASK,
|
|
GTK_MOVEMENT_PARAGRAPH_ENDS, 1);
|
|
|
|
add_move_binding (binding_set, GDK_f, GDK_MOD1_MASK,
|
|
GTK_MOVEMENT_WORDS, 1);
|
|
|
|
add_move_binding (binding_set, GDK_b, GDK_MOD1_MASK,
|
|
GTK_MOVEMENT_WORDS, -1);
|
|
|
|
add_move_binding (binding_set, GDK_Home, 0,
|
|
GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1);
|
|
|
|
add_move_binding (binding_set, GDK_End, 0,
|
|
GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1);
|
|
|
|
add_move_binding (binding_set, GDK_KP_Home, 0,
|
|
GTK_MOVEMENT_DISPLAY_LINE_ENDS, -1);
|
|
|
|
add_move_binding (binding_set, GDK_KP_End, 0,
|
|
GTK_MOVEMENT_DISPLAY_LINE_ENDS, 1);
|
|
|
|
add_move_binding (binding_set, GDK_Home, GDK_CONTROL_MASK,
|
|
GTK_MOVEMENT_BUFFER_ENDS, -1);
|
|
|
|
add_move_binding (binding_set, GDK_End, GDK_CONTROL_MASK,
|
|
GTK_MOVEMENT_BUFFER_ENDS, 1);
|
|
|
|
add_move_binding (binding_set, GDK_KP_Home, GDK_CONTROL_MASK,
|
|
GTK_MOVEMENT_BUFFER_ENDS, -1);
|
|
|
|
add_move_binding (binding_set, GDK_KP_End, GDK_CONTROL_MASK,
|
|
GTK_MOVEMENT_BUFFER_ENDS, 1);
|
|
|
|
add_move_binding (binding_set, GDK_Up, 0,
|
|
GTK_MOVEMENT_DISPLAY_LINES, -1);
|
|
|
|
add_move_binding (binding_set, GDK_KP_Up, 0,
|
|
GTK_MOVEMENT_DISPLAY_LINES, -1);
|
|
|
|
add_move_binding (binding_set, GDK_Down, 0,
|
|
GTK_MOVEMENT_DISPLAY_LINES, 1);
|
|
|
|
add_move_binding (binding_set, GDK_KP_Down, 0,
|
|
GTK_MOVEMENT_DISPLAY_LINES, 1);
|
|
|
|
/* Select all
|
|
*/
|
|
gtk_binding_entry_add_signal (binding_set, GDK_a, GDK_CONTROL_MASK,
|
|
"move_cursor", 3,
|
|
GTK_TYPE_MOVEMENT_STEP, GTK_MOVEMENT_BUFFER_ENDS,
|
|
G_TYPE_INT, -1,
|
|
G_TYPE_BOOLEAN, FALSE);
|
|
gtk_binding_entry_add_signal (binding_set, GDK_a, GDK_CONTROL_MASK,
|
|
"move_cursor", 3,
|
|
GTK_TYPE_MOVEMENT_STEP, GTK_MOVEMENT_BUFFER_ENDS,
|
|
G_TYPE_INT, 1,
|
|
G_TYPE_BOOLEAN, TRUE);
|
|
|
|
/* Deleting text */
|
|
gtk_binding_entry_add_signal (binding_set, GDK_Delete, 0,
|
|
"delete_from_cursor", 2,
|
|
G_TYPE_ENUM, GTK_DELETE_CHARS,
|
|
G_TYPE_INT, 1);
|
|
|
|
gtk_binding_entry_add_signal (binding_set, GDK_KP_Delete, 0,
|
|
"delete_from_cursor", 2,
|
|
G_TYPE_ENUM, GTK_DELETE_CHARS,
|
|
G_TYPE_INT, 1);
|
|
|
|
gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, 0,
|
|
"delete_from_cursor", 2,
|
|
G_TYPE_ENUM, GTK_DELETE_CHARS,
|
|
G_TYPE_INT, -1);
|
|
|
|
/* Make this do the same as Backspace, to help with mis-typing */
|
|
gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, GDK_SHIFT_MASK,
|
|
"delete_from_cursor", 2,
|
|
G_TYPE_ENUM, GTK_DELETE_CHARS,
|
|
G_TYPE_INT, -1);
|
|
|
|
gtk_binding_entry_add_signal (binding_set, GDK_Delete, GDK_CONTROL_MASK,
|
|
"delete_from_cursor", 2,
|
|
G_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
|
|
G_TYPE_INT, 1);
|
|
|
|
gtk_binding_entry_add_signal (binding_set, GDK_KP_Delete, GDK_CONTROL_MASK,
|
|
"delete_from_cursor", 2,
|
|
G_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
|
|
G_TYPE_INT, 1);
|
|
|
|
gtk_binding_entry_add_signal (binding_set, GDK_BackSpace, GDK_CONTROL_MASK,
|
|
"delete_from_cursor", 2,
|
|
G_TYPE_ENUM, GTK_DELETE_WORD_ENDS,
|
|
G_TYPE_INT, -1);
|
|
|
|
/* Cut/copy/paste */
|
|
|
|
gtk_binding_entry_add_signal (binding_set, GDK_x, GDK_CONTROL_MASK,
|
|
"cut_clipboard", 0);
|
|
gtk_binding_entry_add_signal (binding_set, GDK_c, GDK_CONTROL_MASK,
|
|
"copy_clipboard", 0);
|
|
gtk_binding_entry_add_signal (binding_set, GDK_v, GDK_CONTROL_MASK,
|
|
"paste_clipboard", 0);
|
|
|
|
gtk_binding_entry_add_signal (binding_set, GDK_Delete, GDK_SHIFT_MASK,
|
|
"cut_clipboard", 0);
|
|
gtk_binding_entry_add_signal (binding_set, GDK_Insert, GDK_CONTROL_MASK,
|
|
"copy_clipboard", 0);
|
|
gtk_binding_entry_add_signal (binding_set, GDK_Insert, GDK_SHIFT_MASK,
|
|
"paste_clipboard", 0);
|
|
|
|
/* Overwrite */
|
|
gtk_binding_entry_add_signal (binding_set, GDK_Insert, 0,
|
|
"toggle_overwrite", 0);
|
|
gtk_binding_entry_add_signal (binding_set, GDK_KP_Insert, 0,
|
|
"toggle_overwrite", 0);
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_editable_init (GtkEditableClass *iface)
|
|
{
|
|
iface->do_insert_text = editable_insert_text_emit;
|
|
iface->do_delete_text = editable_delete_text_emit;
|
|
iface->insert_text = editable_insert_text;
|
|
iface->delete_text = editable_delete_text;
|
|
iface->get_chars = editable_get_chars;
|
|
iface->set_selection_bounds = editable_set_selection_bounds;
|
|
iface->get_selection_bounds = editable_get_selection_bounds;
|
|
iface->set_position = editable_real_set_position;
|
|
iface->get_position = editable_get_position;
|
|
}
|
|
|
|
|
|
static void
|
|
eel_editable_label_set_property (GObject *object,
|
|
guint prop_id,
|
|
const GValue *value,
|
|
GParamSpec *pspec)
|
|
{
|
|
EelEditableLabel *label;
|
|
|
|
label = EEL_EDITABLE_LABEL (object);
|
|
|
|
switch (prop_id)
|
|
{
|
|
case PROP_TEXT:
|
|
eel_editable_label_set_text (label, g_value_get_string (value));
|
|
break;
|
|
case PROP_JUSTIFY:
|
|
eel_editable_label_set_justify (label, g_value_get_enum (value));
|
|
break;
|
|
case PROP_WRAP:
|
|
eel_editable_label_set_line_wrap (label, g_value_get_boolean (value));
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_get_property (GObject *object,
|
|
guint prop_id,
|
|
GValue *value,
|
|
GParamSpec *pspec)
|
|
{
|
|
EelEditableLabel *label;
|
|
gint offset;
|
|
|
|
label = EEL_EDITABLE_LABEL (object);
|
|
|
|
switch (prop_id)
|
|
{
|
|
case PROP_TEXT:
|
|
g_value_set_string (value, label->text);
|
|
break;
|
|
case PROP_JUSTIFY:
|
|
g_value_set_enum (value, label->jtype);
|
|
break;
|
|
case PROP_WRAP:
|
|
g_value_set_boolean (value, label->wrap);
|
|
break;
|
|
case PROP_CURSOR_POSITION:
|
|
offset = g_utf8_pointer_to_offset (label->text,
|
|
label->text + label->selection_end);
|
|
g_value_set_int (value, offset);
|
|
break;
|
|
case PROP_SELECTION_BOUND:
|
|
offset = g_utf8_pointer_to_offset (label->text,
|
|
label->text + label->selection_anchor);
|
|
g_value_set_int (value, offset);
|
|
break;
|
|
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_init (EelEditableLabel *label)
|
|
{
|
|
label->jtype = GTK_JUSTIFY_LEFT;
|
|
label->wrap = FALSE;
|
|
label->wrap_mode = PANGO_WRAP_WORD;
|
|
|
|
label->layout = NULL;
|
|
label->text_size = 1;
|
|
label->text = g_malloc (label->text_size);
|
|
label->text[0] = '\0';
|
|
label->n_bytes = 0;
|
|
|
|
GTK_WIDGET_SET_FLAGS (label, GTK_CAN_FOCUS);
|
|
|
|
/* This object is completely private. No external entity can gain a reference
|
|
* to it; so we create it here and destroy it in finalize().
|
|
*/
|
|
label->im_context = gtk_im_multicontext_new ();
|
|
|
|
g_signal_connect (G_OBJECT (label->im_context), "commit",
|
|
G_CALLBACK (eel_editable_label_commit_cb), label);
|
|
g_signal_connect (G_OBJECT (label->im_context), "preedit_changed",
|
|
G_CALLBACK (eel_editable_label_preedit_changed_cb), label);
|
|
g_signal_connect (G_OBJECT (label->im_context), "retrieve_surrounding",
|
|
G_CALLBACK (eel_editable_label_retrieve_surrounding_cb), label);
|
|
g_signal_connect (G_OBJECT (label->im_context), "delete_surrounding",
|
|
G_CALLBACK (eel_editable_label_delete_surrounding_cb), label);
|
|
}
|
|
|
|
/**
|
|
* eel_editable_label_new:
|
|
* @str: The text of the label
|
|
*
|
|
* Creates a new label with the given text inside it. You can
|
|
* pass %NULL to get an empty label widget.
|
|
*
|
|
* Return value: the new #EelEditableLabel
|
|
**/
|
|
GtkWidget*
|
|
eel_editable_label_new (const gchar *str)
|
|
{
|
|
EelEditableLabel *label;
|
|
|
|
label = g_object_new (EEL_TYPE_EDITABLE_LABEL, NULL);
|
|
|
|
if (str && *str)
|
|
eel_editable_label_set_text (label, str);
|
|
|
|
return GTK_WIDGET (label);
|
|
}
|
|
|
|
/**
|
|
* eel_editable_label_set_text:
|
|
* @label: a #EelEditableLabel
|
|
* @str: The text you want to set.
|
|
*
|
|
* Sets the text within the #EelEditableLabel widget. It overwrites any text that
|
|
* was there before.
|
|
*
|
|
* This will also clear any previously set mnemonic accelerators.
|
|
**/
|
|
void
|
|
eel_editable_label_set_text (EelEditableLabel *label,
|
|
const gchar *str)
|
|
{
|
|
GtkEditable *editable;
|
|
int tmp_pos;
|
|
|
|
g_return_if_fail (EEL_IS_EDITABLE_LABEL (label));
|
|
g_return_if_fail (str != NULL);
|
|
|
|
if (strcmp (label->text, str) == 0)
|
|
return;
|
|
|
|
editable = GTK_EDITABLE (label);
|
|
gtk_editable_delete_text (editable, 0, -1);
|
|
tmp_pos = 0;
|
|
gtk_editable_insert_text (editable, str, strlen (str), &tmp_pos);
|
|
}
|
|
|
|
/**
|
|
* eel_editable_label_get_text:
|
|
* @label: a #EelEditableLabel
|
|
*
|
|
* Fetches the text from a label widget, as displayed on the
|
|
* screen. This does not include any embedded underlines
|
|
* indicating mnemonics or Pango markup. (See eel_editable_label_get_label())
|
|
*
|
|
* Return value: the text in the label widget. This is the internal
|
|
* string used by the label, and must not be modified.
|
|
**/
|
|
G_CONST_RETURN gchar *
|
|
eel_editable_label_get_text (EelEditableLabel *label)
|
|
{
|
|
g_return_val_if_fail (EEL_IS_EDITABLE_LABEL (label), NULL);
|
|
|
|
return label->text;
|
|
}
|
|
|
|
/**
|
|
* eel_editable_label_set_justify:
|
|
* @label: a #EelEditableLabel
|
|
* @jtype: a #GtkJustification
|
|
*
|
|
* Sets the alignment of the lines in the text of the label relative to
|
|
* each other. %GTK_JUSTIFY_LEFT is the default value when the
|
|
* widget is first created with eel_editable_label_new(). If you instead want
|
|
* to set the alignment of the label as a whole, use
|
|
* gtk_misc_set_alignment() instead. eel_editable_label_set_justify() has no
|
|
* effect on labels containing only a single line.
|
|
**/
|
|
void
|
|
eel_editable_label_set_justify (EelEditableLabel *label,
|
|
GtkJustification jtype)
|
|
{
|
|
g_return_if_fail (EEL_IS_EDITABLE_LABEL (label));
|
|
g_return_if_fail (jtype >= GTK_JUSTIFY_LEFT && jtype <= GTK_JUSTIFY_FILL);
|
|
|
|
if ((GtkJustification) label->jtype != jtype)
|
|
{
|
|
label->jtype = jtype;
|
|
|
|
/* No real need to be this drastic, but easier than duplicating the code */
|
|
eel_editable_label_recompute (label);
|
|
|
|
g_object_notify (G_OBJECT (label), "justify");
|
|
gtk_widget_queue_resize (GTK_WIDGET (label));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* eel_editable_label_get_justify:
|
|
* @label: a #EelEditableLabel
|
|
*
|
|
* Returns the justification of the label. See eel_editable_label_set_justify ().
|
|
*
|
|
* Return value: #GtkJustification
|
|
**/
|
|
GtkJustification
|
|
eel_editable_label_get_justify (EelEditableLabel *label)
|
|
{
|
|
g_return_val_if_fail (EEL_IS_EDITABLE_LABEL (label), 0);
|
|
|
|
return label->jtype;
|
|
}
|
|
|
|
void
|
|
eel_editable_label_set_draw_outline (EelEditableLabel *label,
|
|
gboolean draw_outline)
|
|
{
|
|
draw_outline = draw_outline != FALSE;
|
|
|
|
if (label->draw_outline != draw_outline)
|
|
{
|
|
label->draw_outline = draw_outline;
|
|
|
|
gtk_widget_queue_draw (GTK_WIDGET (label));
|
|
}
|
|
|
|
}
|
|
|
|
|
|
/**
|
|
* eel_editable_label_set_line_wrap:
|
|
* @label: a #EelEditableLabel
|
|
* @wrap: the setting
|
|
*
|
|
* Toggles line wrapping within the #EelEditableLabel widget. %TRUE makes it break
|
|
* lines if text exceeds the widget's size. %FALSE lets the text get cut off
|
|
* by the edge of the widget if it exceeds the widget size.
|
|
**/
|
|
void
|
|
eel_editable_label_set_line_wrap (EelEditableLabel *label,
|
|
gboolean wrap)
|
|
{
|
|
g_return_if_fail (EEL_IS_EDITABLE_LABEL (label));
|
|
|
|
wrap = wrap != FALSE;
|
|
|
|
if (label->wrap != wrap)
|
|
{
|
|
label->wrap = wrap;
|
|
g_object_notify (G_OBJECT (label), "wrap");
|
|
|
|
gtk_widget_queue_resize (GTK_WIDGET (label));
|
|
}
|
|
}
|
|
|
|
|
|
void
|
|
eel_editable_label_set_line_wrap_mode (EelEditableLabel *label,
|
|
PangoWrapMode mode)
|
|
{
|
|
g_return_if_fail (EEL_IS_EDITABLE_LABEL (label));
|
|
|
|
if (label->wrap_mode != mode)
|
|
{
|
|
label->wrap_mode = mode;
|
|
|
|
gtk_widget_queue_resize (GTK_WIDGET (label));
|
|
}
|
|
|
|
}
|
|
|
|
|
|
/**
|
|
* eel_editable_label_get_line_wrap:
|
|
* @label: a #EelEditableLabel
|
|
*
|
|
* Returns whether lines in the label are automatically wrapped. See eel_editable_label_set_line_wrap ().
|
|
*
|
|
* Return value: %TRUE if the lines of the label are automatically wrapped.
|
|
*/
|
|
gboolean
|
|
eel_editable_label_get_line_wrap (EelEditableLabel *label)
|
|
{
|
|
g_return_val_if_fail (EEL_IS_EDITABLE_LABEL (label), FALSE);
|
|
|
|
return label->wrap;
|
|
}
|
|
|
|
PangoFontDescription *
|
|
eel_editable_label_get_font_description (EelEditableLabel *label)
|
|
{
|
|
if (label->font_desc)
|
|
return pango_font_description_copy (label->font_desc);
|
|
|
|
return NULL;
|
|
}
|
|
|
|
void
|
|
eel_editable_label_set_font_description (EelEditableLabel *label,
|
|
const PangoFontDescription *desc)
|
|
{
|
|
if (label->font_desc)
|
|
pango_font_description_free (label->font_desc);
|
|
|
|
if (desc)
|
|
label->font_desc = pango_font_description_copy (desc);
|
|
else
|
|
label->font_desc = NULL;
|
|
|
|
eel_editable_label_clear_layout (label);
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_finalize (GObject *object)
|
|
{
|
|
EelEditableLabel *label;
|
|
|
|
g_assert (EEL_IS_EDITABLE_LABEL (object));
|
|
|
|
label = EEL_EDITABLE_LABEL (object);
|
|
|
|
if (label->font_desc)
|
|
{
|
|
pango_font_description_free (label->font_desc);
|
|
label->font_desc = NULL;
|
|
}
|
|
|
|
g_object_unref (G_OBJECT (label->im_context));
|
|
label->im_context = NULL;
|
|
|
|
g_free (label->text);
|
|
label->text = NULL;
|
|
|
|
if (label->layout)
|
|
{
|
|
g_object_unref (G_OBJECT (label->layout));
|
|
label->layout = NULL;
|
|
}
|
|
|
|
G_OBJECT_CLASS (parent_class)->finalize (object);
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_clear_layout (EelEditableLabel *label)
|
|
{
|
|
if (label->layout)
|
|
{
|
|
g_object_unref (G_OBJECT (label->layout));
|
|
label->layout = NULL;
|
|
}
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_recompute (EelEditableLabel *label)
|
|
{
|
|
eel_editable_label_clear_layout (label);
|
|
eel_editable_label_check_cursor_blink (label);
|
|
}
|
|
|
|
typedef struct _LabelWrapWidth LabelWrapWidth;
|
|
struct _LabelWrapWidth
|
|
{
|
|
gint width;
|
|
PangoFontDescription *font_desc;
|
|
};
|
|
|
|
static void
|
|
label_wrap_width_free (gpointer data)
|
|
{
|
|
LabelWrapWidth *wrap_width = data;
|
|
pango_font_description_free (wrap_width->font_desc);
|
|
g_free (wrap_width);
|
|
}
|
|
|
|
static gint
|
|
get_label_wrap_width (EelEditableLabel *label)
|
|
{
|
|
PangoLayout *layout;
|
|
GtkStyle *style = GTK_WIDGET (label)->style;
|
|
|
|
LabelWrapWidth *wrap_width = g_object_get_data (G_OBJECT (style), "gtk-label-wrap-width");
|
|
if (!wrap_width)
|
|
{
|
|
wrap_width = g_new0 (LabelWrapWidth, 1);
|
|
g_object_set_data_full (G_OBJECT (style), "gtk-label-wrap-width",
|
|
wrap_width, label_wrap_width_free);
|
|
}
|
|
|
|
if (wrap_width->font_desc && pango_font_description_equal (wrap_width->font_desc, style->font_desc))
|
|
return wrap_width->width;
|
|
|
|
if (wrap_width->font_desc)
|
|
pango_font_description_free (wrap_width->font_desc);
|
|
|
|
wrap_width->font_desc = pango_font_description_copy (style->font_desc);
|
|
|
|
layout = gtk_widget_create_pango_layout (GTK_WIDGET (label),
|
|
"This long string gives a good enough length for any line to have.");
|
|
pango_layout_get_size (layout, &wrap_width->width, NULL);
|
|
g_object_unref (layout);
|
|
|
|
return wrap_width->width;
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_ensure_layout (EelEditableLabel *label,
|
|
gboolean include_preedit)
|
|
{
|
|
GtkWidget *widget;
|
|
PangoRectangle logical_rect;
|
|
|
|
/* Normalize for comparisons */
|
|
include_preedit = include_preedit != 0;
|
|
|
|
if (label->preedit_length > 0 &&
|
|
include_preedit != label->layout_includes_preedit)
|
|
eel_editable_label_clear_layout (label);
|
|
|
|
widget = GTK_WIDGET (label);
|
|
|
|
if (label->layout == NULL)
|
|
{
|
|
gchar *preedit_string = NULL;
|
|
gint preedit_length = 0;
|
|
PangoAttrList *preedit_attrs = NULL;
|
|
PangoAlignment align = PANGO_ALIGN_LEFT; /* Quiet gcc */
|
|
PangoAttrList *tmp_attrs = pango_attr_list_new ();
|
|
|
|
if (include_preedit)
|
|
{
|
|
gtk_im_context_get_preedit_string (label->im_context,
|
|
&preedit_string, &preedit_attrs, NULL);
|
|
preedit_length = label->preedit_length;
|
|
}
|
|
|
|
if (preedit_length)
|
|
{
|
|
GString *tmp_string = g_string_new (NULL);
|
|
|
|
g_string_prepend_len (tmp_string, label->text, label->n_bytes);
|
|
g_string_insert (tmp_string, label->selection_anchor, preedit_string);
|
|
|
|
label->layout = gtk_widget_create_pango_layout (widget, tmp_string->str);
|
|
|
|
pango_attr_list_splice (tmp_attrs, preedit_attrs,
|
|
label->selection_anchor, preedit_length);
|
|
|
|
g_string_free (tmp_string, TRUE);
|
|
}
|
|
else
|
|
{
|
|
label->layout = gtk_widget_create_pango_layout (widget, label->text);
|
|
}
|
|
label->layout_includes_preedit = include_preedit;
|
|
|
|
if (label->font_desc != NULL)
|
|
pango_layout_set_font_description (label->layout, label->font_desc);
|
|
|
|
pango_layout_set_attributes (label->layout, tmp_attrs);
|
|
|
|
if (preedit_string)
|
|
g_free (preedit_string);
|
|
if (preedit_attrs)
|
|
pango_attr_list_unref (preedit_attrs);
|
|
pango_attr_list_unref (tmp_attrs);
|
|
|
|
switch (label->jtype)
|
|
{
|
|
case GTK_JUSTIFY_LEFT:
|
|
align = PANGO_ALIGN_LEFT;
|
|
break;
|
|
case GTK_JUSTIFY_RIGHT:
|
|
align = PANGO_ALIGN_RIGHT;
|
|
break;
|
|
case GTK_JUSTIFY_CENTER:
|
|
align = PANGO_ALIGN_CENTER;
|
|
break;
|
|
case GTK_JUSTIFY_FILL:
|
|
/* FIXME: This just doesn't work to do this */
|
|
align = PANGO_ALIGN_LEFT;
|
|
pango_layout_set_justify (label->layout, TRUE);
|
|
break;
|
|
default:
|
|
g_assert_not_reached();
|
|
}
|
|
|
|
pango_layout_set_alignment (label->layout, align);
|
|
|
|
if (label->wrap)
|
|
{
|
|
gint longest_paragraph;
|
|
gint width, height;
|
|
gint set_width;
|
|
|
|
gtk_widget_get_size_request (widget, &set_width, NULL);
|
|
if (set_width > 0)
|
|
pango_layout_set_width (label->layout, set_width * PANGO_SCALE);
|
|
else
|
|
{
|
|
gint wrap_width;
|
|
|
|
pango_layout_set_width (label->layout, -1);
|
|
pango_layout_get_extents (label->layout, NULL, &logical_rect);
|
|
|
|
width = logical_rect.width;
|
|
|
|
/* Try to guess a reasonable maximum width */
|
|
longest_paragraph = width;
|
|
|
|
wrap_width = get_label_wrap_width (label);
|
|
width = MIN (width, wrap_width);
|
|
width = MIN (width,
|
|
PANGO_SCALE * (gdk_screen_width () + 1) / 2);
|
|
|
|
pango_layout_set_width (label->layout, width);
|
|
pango_layout_get_extents (label->layout, NULL, &logical_rect);
|
|
width = logical_rect.width;
|
|
height = logical_rect.height;
|
|
|
|
/* Unfortunately, the above may leave us with a very unbalanced looking paragraph,
|
|
* so we try short search for a narrower width that leaves us with the same height
|
|
*/
|
|
if (longest_paragraph > 0)
|
|
{
|
|
gint nlines, perfect_width;
|
|
|
|
nlines = pango_layout_get_line_count (label->layout);
|
|
perfect_width = (longest_paragraph + nlines - 1) / nlines;
|
|
|
|
if (perfect_width < width)
|
|
{
|
|
pango_layout_set_width (label->layout, perfect_width);
|
|
pango_layout_get_extents (label->layout, NULL, &logical_rect);
|
|
|
|
if (logical_rect.height <= height)
|
|
width = logical_rect.width;
|
|
else
|
|
{
|
|
gint mid_width = (perfect_width + width) / 2;
|
|
|
|
if (mid_width > perfect_width)
|
|
{
|
|
pango_layout_set_width (label->layout, mid_width);
|
|
pango_layout_get_extents (label->layout, NULL, &logical_rect);
|
|
|
|
if (logical_rect.height <= height)
|
|
width = logical_rect.width;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
pango_layout_set_width (label->layout, width);
|
|
}
|
|
pango_layout_set_wrap (label->layout, label->wrap_mode);
|
|
}
|
|
else /* !label->wrap */
|
|
pango_layout_set_width (label->layout, -1);
|
|
}
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_size_request (GtkWidget *widget,
|
|
GtkRequisition *requisition)
|
|
{
|
|
EelEditableLabel *label;
|
|
gint width, height;
|
|
PangoRectangle logical_rect;
|
|
gint set_width;
|
|
|
|
g_assert (EEL_IS_EDITABLE_LABEL (widget));
|
|
g_assert (requisition != NULL);
|
|
|
|
label = EEL_EDITABLE_LABEL (widget);
|
|
|
|
/*
|
|
* If word wrapping is on, then the height requisition can depend
|
|
* on:
|
|
*
|
|
* - Any width set on the widget via gtk_widget_set_usize().
|
|
* - The padding of the widget (xpad, set by gtk_misc_set_padding)
|
|
*
|
|
* Instead of trying to detect changes to these quantities, if we
|
|
* are wrapping, we just rewrap for each size request. Since
|
|
* size requisitions are cached by the GTK+ core, this is not
|
|
* expensive.
|
|
*/
|
|
|
|
if (label->wrap)
|
|
eel_editable_label_recompute (label);
|
|
|
|
eel_editable_label_ensure_layout (label, TRUE);
|
|
|
|
width = label->misc.xpad * 2;
|
|
height = label->misc.ypad * 2;
|
|
|
|
pango_layout_get_extents (label->layout, NULL, &logical_rect);
|
|
|
|
gtk_widget_get_size_request (widget, &set_width, NULL);
|
|
if (label->wrap && set_width > 0)
|
|
width += set_width;
|
|
else
|
|
width += PANGO_PIXELS (logical_rect.width);
|
|
|
|
height += PANGO_PIXELS (logical_rect.height);
|
|
|
|
requisition->width = width;
|
|
requisition->height = height;
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_size_allocate (GtkWidget *widget,
|
|
GtkAllocation *allocation)
|
|
{
|
|
(* GTK_WIDGET_CLASS (parent_class)->size_allocate) (widget, allocation);
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_state_changed (GtkWidget *widget,
|
|
GtkStateType prev_state)
|
|
{
|
|
EelEditableLabel *label;
|
|
|
|
label = EEL_EDITABLE_LABEL (widget);
|
|
|
|
eel_editable_label_select_region (label, 0, 0);
|
|
|
|
if (GTK_WIDGET_CLASS (parent_class)->state_changed)
|
|
GTK_WIDGET_CLASS (parent_class)->state_changed (widget, prev_state);
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_style_set (GtkWidget *widget,
|
|
GtkStyle *previous_style)
|
|
{
|
|
EelEditableLabel *label;
|
|
static GdkColor gray = { 0, 0x8888, 0x8888, 0x8888 };
|
|
|
|
g_assert (EEL_IS_EDITABLE_LABEL (widget));
|
|
|
|
label = EEL_EDITABLE_LABEL (widget);
|
|
|
|
/* We have to clear the layout, fonts etc. may have changed */
|
|
eel_editable_label_recompute (label);
|
|
|
|
/* Set the background, foreground and cursor colors based on
|
|
* the new theme selected.
|
|
*/
|
|
if (GTK_WIDGET_REALIZED (widget))
|
|
{
|
|
gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]);
|
|
|
|
if (label->primary_cursor_gc != NULL)
|
|
{
|
|
gtk_gc_release (label->primary_cursor_gc);
|
|
label->primary_cursor_gc = NULL;
|
|
}
|
|
|
|
if (label->secondary_cursor_gc != NULL)
|
|
{
|
|
gtk_gc_release (label->secondary_cursor_gc);
|
|
label->secondary_cursor_gc = NULL;
|
|
}
|
|
|
|
label->primary_cursor_gc = make_cursor_gc (widget,
|
|
"cursor-color",
|
|
&widget->style->black);
|
|
|
|
label->secondary_cursor_gc = make_cursor_gc (widget,
|
|
"secondary-cursor-color",
|
|
&gray);
|
|
}
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_direction_changed (GtkWidget *widget,
|
|
GtkTextDirection previous_dir)
|
|
{
|
|
EelEditableLabel *label = EEL_EDITABLE_LABEL (widget);
|
|
|
|
if (label->layout)
|
|
pango_layout_context_changed (label->layout);
|
|
|
|
GTK_WIDGET_CLASS (parent_class)->direction_changed (widget, previous_dir);
|
|
}
|
|
|
|
static void
|
|
get_layout_location (EelEditableLabel *label,
|
|
gint *xp,
|
|
gint *yp)
|
|
{
|
|
GtkMisc *misc;
|
|
GtkWidget *widget;
|
|
gfloat xalign;
|
|
GtkRequisition req;
|
|
gint x, y;
|
|
|
|
misc = GTK_MISC (label);
|
|
widget = GTK_WIDGET (label);
|
|
|
|
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
|
|
xalign = misc->xalign;
|
|
else
|
|
xalign = 1.0 - misc->xalign;
|
|
|
|
gtk_widget_get_child_requisition (widget, &req);
|
|
|
|
x = floor ((gint)misc->xpad
|
|
+ ((widget->allocation.width - req.width) * xalign)
|
|
+ 0.5);
|
|
|
|
y = floor ((gint)misc->ypad
|
|
+ ((widget->allocation.height - req.height) * misc->yalign)
|
|
+ 0.5);
|
|
|
|
if (xp)
|
|
*xp = x;
|
|
|
|
if (yp)
|
|
*yp = y;
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_get_cursor_pos (EelEditableLabel *label,
|
|
PangoRectangle *strong_pos,
|
|
PangoRectangle *weak_pos)
|
|
{
|
|
const gchar *text;
|
|
const gchar *preedit_text;
|
|
gint index;
|
|
|
|
eel_editable_label_ensure_layout (label, TRUE);
|
|
|
|
text = pango_layout_get_text (label->layout);
|
|
preedit_text = text + label->selection_anchor;
|
|
index = label->selection_anchor +
|
|
g_utf8_offset_to_pointer (preedit_text, label->preedit_cursor) - preedit_text;
|
|
|
|
pango_layout_get_cursor_pos (label->layout, index, strong_pos, weak_pos);
|
|
}
|
|
|
|
/* Copied from gtkutil private function */
|
|
static gboolean
|
|
eel_editable_label_get_block_cursor_location (EelEditableLabel *label,
|
|
gint *index,
|
|
PangoRectangle *pos,
|
|
gboolean *at_line_end)
|
|
{
|
|
const gchar *text;
|
|
const gchar *preedit_text;
|
|
PangoLayoutLine *layout_line;
|
|
PangoRectangle strong_pos, weak_pos;
|
|
gint line_no;
|
|
gboolean rtl;
|
|
PangoContext *context;
|
|
PangoFontMetrics *metrics;
|
|
const PangoFontDescription *font_desc;
|
|
|
|
eel_editable_label_ensure_layout (label, TRUE);
|
|
|
|
text = pango_layout_get_text (label->layout);
|
|
preedit_text = text + label->selection_anchor;
|
|
text = g_utf8_offset_to_pointer (preedit_text, label->preedit_cursor);
|
|
index[0] = label->selection_anchor + text - preedit_text;
|
|
|
|
pango_layout_index_to_pos (label->layout, index[0], pos);
|
|
|
|
index[1] = label->selection_anchor + g_utf8_next_char (text) - preedit_text;
|
|
|
|
if (pos->width != 0)
|
|
{
|
|
if (at_line_end)
|
|
*at_line_end = FALSE;
|
|
if (pos->width < 0) /* RTL char, shift x value back to top left of rect */
|
|
{
|
|
pos->x += pos->width;
|
|
pos->width = -pos->width;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
pango_layout_index_to_line_x (label->layout, index[0], FALSE, &line_no, NULL);
|
|
layout_line = pango_layout_get_line_readonly (label->layout, line_no);
|
|
if (layout_line == NULL)
|
|
return FALSE;
|
|
|
|
text = pango_layout_get_text (label->layout);
|
|
if (index[0] < layout_line->start_index + layout_line->length)
|
|
{
|
|
/* this may be a zero-width character in the middle of the line,
|
|
* or it could be a character where line is wrapped, we do want
|
|
* block cursor in latter case */
|
|
if (g_utf8_next_char (text + index[0]) - text !=
|
|
layout_line->start_index + layout_line->length)
|
|
{
|
|
/* zero-width character in the middle of the line, do not
|
|
* bother with block cursor */
|
|
return FALSE;
|
|
}
|
|
}
|
|
|
|
/* Cursor is at the line end. It may be an empty line, or it could
|
|
* be on the left or on the right depending on text direction, or it
|
|
* even could be in the middle of visual layout in bidi text. */
|
|
|
|
pango_layout_get_cursor_pos (label->layout, index[0], &strong_pos, &weak_pos);
|
|
|
|
if (strong_pos.x != weak_pos.x)
|
|
{
|
|
/* do not show block cursor in this case, since the character typed
|
|
* in may or may not appear at the cursor position */
|
|
return FALSE;
|
|
}
|
|
|
|
context = pango_layout_get_context (label->layout);
|
|
|
|
/* In case when index points to the end of line, pos->x is always most right
|
|
* pixel of the layout line, so we need to correct it for RTL text. */
|
|
if (layout_line->length)
|
|
{
|
|
if (layout_line->resolved_dir == PANGO_DIRECTION_RTL)
|
|
{
|
|
PangoLayoutIter *iter;
|
|
PangoRectangle line_rect;
|
|
gint i;
|
|
gint left, right;
|
|
const gchar *p;
|
|
|
|
p = g_utf8_prev_char (text + index[0]);
|
|
|
|
pango_layout_line_index_to_x (layout_line, p - text, FALSE, &left);
|
|
pango_layout_line_index_to_x (layout_line, p - text, TRUE, &right);
|
|
pos->x = MIN (left, right);
|
|
|
|
iter = pango_layout_get_iter (label->layout);
|
|
for (i = 0; i < line_no; i++)
|
|
pango_layout_iter_next_line (iter);
|
|
pango_layout_iter_get_line_extents (iter, NULL, &line_rect);
|
|
pango_layout_iter_free (iter);
|
|
|
|
rtl = TRUE;
|
|
pos->x += line_rect.x;
|
|
}
|
|
else
|
|
rtl = FALSE;
|
|
}
|
|
else
|
|
{
|
|
rtl = pango_context_get_base_dir (context) == PANGO_DIRECTION_RTL;
|
|
}
|
|
|
|
font_desc = pango_layout_get_font_description (label->layout);
|
|
if (!font_desc)
|
|
font_desc = pango_context_get_font_description (context);
|
|
|
|
metrics = pango_context_get_metrics (context, font_desc, NULL);
|
|
pos->width = pango_font_metrics_get_approximate_char_width (metrics);
|
|
pango_font_metrics_unref (metrics);
|
|
|
|
if (rtl)
|
|
pos->x -= pos->width - 1;
|
|
|
|
if (at_line_end)
|
|
*at_line_end = TRUE;
|
|
|
|
return pos->width != 0;
|
|
}
|
|
|
|
|
|
/* These functions are copies from gtk+, as they are not exported from gtk+ */
|
|
|
|
static GdkGC *
|
|
make_cursor_gc (GtkWidget *widget,
|
|
const gchar *property_name,
|
|
GdkColor *fallback)
|
|
{
|
|
GdkGCValues gc_values;
|
|
GdkGCValuesMask gc_values_mask;
|
|
GdkColor *cursor_color;
|
|
|
|
gtk_widget_style_get (widget, property_name, &cursor_color, NULL);
|
|
|
|
gc_values_mask = GDK_GC_FOREGROUND;
|
|
if (cursor_color)
|
|
{
|
|
gc_values.foreground = *cursor_color;
|
|
gdk_color_free (cursor_color);
|
|
}
|
|
else
|
|
gc_values.foreground = *fallback;
|
|
|
|
gdk_rgb_find_color (widget->style->colormap, &gc_values.foreground);
|
|
return gtk_gc_get (widget->style->depth, widget->style->colormap, &gc_values, gc_values_mask);
|
|
}
|
|
|
|
static void
|
|
_eel_draw_insertion_cursor (GtkWidget *widget,
|
|
GdkDrawable *drawable,
|
|
GdkGC *gc,
|
|
GdkRectangle *location,
|
|
GtkTextDirection direction,
|
|
gboolean draw_arrow)
|
|
{
|
|
gint stem_width;
|
|
gint arrow_width;
|
|
gint x, y;
|
|
gint i;
|
|
gfloat cursor_aspect_ratio;
|
|
gint offset;
|
|
|
|
g_assert (direction != GTK_TEXT_DIR_NONE);
|
|
|
|
gtk_widget_style_get (widget, "cursor-aspect-ratio", &cursor_aspect_ratio, NULL);
|
|
|
|
stem_width = location->height * cursor_aspect_ratio + 1;
|
|
arrow_width = stem_width + 1;
|
|
|
|
/* put (stem_width % 2) on the proper side of the cursor */
|
|
if (direction == GTK_TEXT_DIR_LTR)
|
|
offset = stem_width / 2;
|
|
else
|
|
offset = stem_width - stem_width / 2;
|
|
|
|
for (i = 0; i < stem_width; i++)
|
|
gdk_draw_line (drawable, gc,
|
|
location->x + i - offset, location->y,
|
|
location->x + i - offset, location->y + location->height - 1);
|
|
|
|
if (draw_arrow)
|
|
{
|
|
if (direction == GTK_TEXT_DIR_RTL)
|
|
{
|
|
x = location->x - offset - 1;
|
|
y = location->y + location->height - arrow_width * 2 - arrow_width + 1;
|
|
|
|
for (i = 0; i < arrow_width; i++)
|
|
{
|
|
gdk_draw_line (drawable, gc,
|
|
x, y + i + 1,
|
|
x, y + 2 * arrow_width - i - 1);
|
|
x --;
|
|
}
|
|
}
|
|
else if (direction == GTK_TEXT_DIR_LTR)
|
|
{
|
|
x = location->x + stem_width - offset;
|
|
y = location->y + location->height - arrow_width * 2 - arrow_width + 1;
|
|
|
|
for (i = 0; i < arrow_width; i++)
|
|
{
|
|
gdk_draw_line (drawable, gc,
|
|
x, y + i + 1,
|
|
x, y + 2 * arrow_width - i - 1);
|
|
x++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_draw_cursor (EelEditableLabel *label, gint xoffset, gint yoffset)
|
|
{
|
|
if (GTK_WIDGET_DRAWABLE (label))
|
|
{
|
|
GtkWidget *widget = GTK_WIDGET (label);
|
|
|
|
GtkTextDirection keymap_direction;
|
|
GtkTextDirection widget_direction;
|
|
gboolean split_cursor;
|
|
gboolean block;
|
|
gboolean block_at_line_end;
|
|
gint range[2];
|
|
PangoRectangle strong_pos, weak_pos;
|
|
PangoRectangle *cursor1 = NULL;
|
|
PangoRectangle *cursor2 = NULL;
|
|
GdkRectangle cursor_location;
|
|
GtkTextDirection dir1 = GTK_TEXT_DIR_NONE;
|
|
GtkTextDirection dir2 = GTK_TEXT_DIR_NONE;
|
|
|
|
keymap_direction =
|
|
(gdk_keymap_get_direction (gdk_keymap_get_default ()) == PANGO_DIRECTION_LTR) ?
|
|
GTK_TEXT_DIR_LTR : GTK_TEXT_DIR_RTL;
|
|
|
|
widget_direction = gtk_widget_get_direction (widget);
|
|
|
|
if (label->overwrite_mode &&
|
|
eel_editable_label_get_block_cursor_location (label, range,
|
|
&strong_pos,
|
|
&block_at_line_end))
|
|
block = TRUE;
|
|
else
|
|
block = FALSE;
|
|
|
|
if (!block)
|
|
{
|
|
eel_editable_label_get_cursor_pos (label, &strong_pos, &weak_pos);
|
|
|
|
g_object_get (gtk_widget_get_settings (widget),
|
|
"gtk-split-cursor", &split_cursor,
|
|
NULL);
|
|
|
|
dir1 = widget_direction;
|
|
|
|
if (split_cursor)
|
|
{
|
|
cursor1 = &strong_pos;
|
|
|
|
if (strong_pos.x != weak_pos.x ||
|
|
strong_pos.y != weak_pos.y)
|
|
{
|
|
dir2 = (widget_direction == GTK_TEXT_DIR_LTR) ? GTK_TEXT_DIR_RTL : GTK_TEXT_DIR_LTR;
|
|
cursor2 = &weak_pos;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (keymap_direction == widget_direction)
|
|
cursor1 = &strong_pos;
|
|
else
|
|
cursor1 = &weak_pos;
|
|
}
|
|
|
|
cursor_location.x = xoffset + PANGO_PIXELS (cursor1->x);
|
|
cursor_location.y = yoffset + PANGO_PIXELS (cursor1->y);
|
|
cursor_location.width = 0;
|
|
cursor_location.height = PANGO_PIXELS (cursor1->height);
|
|
|
|
_eel_draw_insertion_cursor (widget, widget->window,
|
|
label->primary_cursor_gc,
|
|
&cursor_location, dir1,
|
|
dir2 != GTK_TEXT_DIR_NONE);
|
|
|
|
if (dir2 != GTK_TEXT_DIR_NONE)
|
|
{
|
|
cursor_location.x = xoffset + PANGO_PIXELS (cursor2->x);
|
|
cursor_location.y = yoffset + PANGO_PIXELS (cursor2->y);
|
|
cursor_location.width = 0;
|
|
cursor_location.height = PANGO_PIXELS (cursor2->height);
|
|
|
|
_eel_draw_insertion_cursor (widget, widget->window,
|
|
label->secondary_cursor_gc,
|
|
&cursor_location, dir2, TRUE);
|
|
}
|
|
}
|
|
else /* Block cursor */
|
|
{
|
|
GdkRegion *clip;
|
|
|
|
gdk_draw_rectangle (widget->window, label->primary_cursor_gc, TRUE,
|
|
xoffset + PANGO_PIXELS (strong_pos.x),
|
|
yoffset + PANGO_PIXELS (strong_pos.y),
|
|
PANGO_PIXELS (strong_pos.width),
|
|
PANGO_PIXELS (strong_pos.height));
|
|
|
|
if (!block_at_line_end)
|
|
{
|
|
clip = gdk_pango_layout_get_clip_region (label->layout,
|
|
xoffset, yoffset,
|
|
range, 1);
|
|
|
|
/* FIXME should use gtk_paint, but it can't use a clip
|
|
* region
|
|
*/
|
|
|
|
gdk_gc_set_clip_region (label->primary_cursor_gc, clip);
|
|
|
|
gdk_draw_layout_with_colors (widget->window,
|
|
label->primary_cursor_gc,
|
|
xoffset, yoffset,
|
|
label->layout,
|
|
&widget->style->base[GTK_STATE_NORMAL],
|
|
NULL);
|
|
|
|
gdk_gc_set_clip_region (label->primary_cursor_gc, NULL);
|
|
gdk_region_destroy (clip);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static gint
|
|
eel_editable_label_expose (GtkWidget *widget,
|
|
GdkEventExpose *event)
|
|
{
|
|
EelEditableLabel *label;
|
|
gint x, y;
|
|
|
|
g_assert (EEL_IS_EDITABLE_LABEL (widget));
|
|
g_assert (event != NULL);
|
|
|
|
label = EEL_EDITABLE_LABEL (widget);
|
|
|
|
eel_editable_label_ensure_layout (label, TRUE);
|
|
|
|
if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_MAPPED (widget) &&
|
|
label->text)
|
|
{
|
|
get_layout_location (label, &x, &y);
|
|
|
|
gtk_paint_layout (widget->style,
|
|
widget->window,
|
|
GTK_WIDGET_STATE (widget),
|
|
FALSE,
|
|
&event->area,
|
|
widget,
|
|
"label",
|
|
x, y,
|
|
label->layout);
|
|
|
|
if (label->selection_anchor != label->selection_end)
|
|
{
|
|
gint range[2];
|
|
const char *text;
|
|
GdkRegion *clip;
|
|
GtkStateType state;
|
|
|
|
range[0] = label->selection_anchor;
|
|
range[1] = label->selection_end;
|
|
|
|
/* Handle possible preedit string */
|
|
if (label->preedit_length > 0 &&
|
|
range[1] > label->selection_anchor)
|
|
{
|
|
text = pango_layout_get_text (label->layout) + label->selection_anchor;
|
|
range[1] += g_utf8_offset_to_pointer (text, label->preedit_length) - text;
|
|
}
|
|
|
|
if (range[0] > range[1])
|
|
{
|
|
gint tmp = range[0];
|
|
range[0] = range[1];
|
|
range[1] = tmp;
|
|
}
|
|
|
|
clip = gdk_pango_layout_get_clip_region (label->layout,
|
|
x, y,
|
|
range,
|
|
1);
|
|
|
|
/* FIXME should use gtk_paint, but it can't use a clip
|
|
* region
|
|
*/
|
|
|
|
gdk_gc_set_clip_region (widget->style->black_gc, clip);
|
|
|
|
|
|
state = GTK_STATE_SELECTED;
|
|
if (!GTK_WIDGET_HAS_FOCUS (widget))
|
|
state = GTK_STATE_ACTIVE;
|
|
|
|
gdk_draw_layout_with_colors (widget->window,
|
|
widget->style->black_gc,
|
|
x, y,
|
|
label->layout,
|
|
&widget->style->text[state],
|
|
&widget->style->base[state]);
|
|
|
|
gdk_gc_set_clip_region (widget->style->black_gc, NULL);
|
|
gdk_region_destroy (clip);
|
|
}
|
|
else if (GTK_WIDGET_HAS_FOCUS (widget))
|
|
eel_editable_label_draw_cursor (label, x, y);
|
|
|
|
if (label->draw_outline)
|
|
gdk_draw_rectangle (widget->window,
|
|
widget->style->fg_gc [GTK_WIDGET_STATE (widget)],
|
|
FALSE,
|
|
0, 0,
|
|
widget->allocation.width - 1,
|
|
widget->allocation.height - 1);
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_realize (GtkWidget *widget)
|
|
{
|
|
EelEditableLabel *label;
|
|
GdkWindowAttr attributes;
|
|
gint attributes_mask;
|
|
static GdkColor gray = { 0, 0x8888, 0x8888, 0x8888 };
|
|
|
|
GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
|
|
label = EEL_EDITABLE_LABEL (widget);
|
|
|
|
attributes.wclass = GDK_INPUT_OUTPUT;
|
|
attributes.window_type = GDK_WINDOW_CHILD;
|
|
attributes.x = widget->allocation.x;
|
|
attributes.y = widget->allocation.y;
|
|
attributes.width = widget->allocation.width;
|
|
attributes.height = widget->allocation.height;
|
|
attributes.visual = gtk_widget_get_visual (widget);
|
|
attributes.colormap = gtk_widget_get_colormap (widget);
|
|
attributes.cursor = gdk_cursor_new (GDK_XTERM);
|
|
attributes.event_mask = gtk_widget_get_events (widget) |
|
|
(GDK_EXPOSURE_MASK |
|
|
GDK_BUTTON_PRESS_MASK |
|
|
GDK_BUTTON_RELEASE_MASK |
|
|
GDK_BUTTON1_MOTION_MASK |
|
|
GDK_BUTTON3_MOTION_MASK |
|
|
GDK_POINTER_MOTION_HINT_MASK |
|
|
GDK_POINTER_MOTION_MASK |
|
|
GDK_ENTER_NOTIFY_MASK |
|
|
GDK_LEAVE_NOTIFY_MASK);
|
|
|
|
attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP | GDK_WA_CURSOR;
|
|
|
|
widget->window = gdk_window_new (gtk_widget_get_parent_window (widget),
|
|
&attributes, attributes_mask);
|
|
gdk_window_set_user_data (widget->window, widget);
|
|
|
|
gdk_cursor_unref (attributes.cursor);
|
|
|
|
widget->style = gtk_style_attach (widget->style, widget->window);
|
|
|
|
gdk_window_set_background (widget->window, &widget->style->base[GTK_WIDGET_STATE (widget)]);
|
|
|
|
gtk_im_context_set_client_window (label->im_context, widget->window);
|
|
|
|
label->primary_cursor_gc = make_cursor_gc (widget,
|
|
"cursor-color",
|
|
&widget->style->black);
|
|
|
|
label->secondary_cursor_gc = make_cursor_gc (widget,
|
|
"secondary-cursor-color",
|
|
&gray);
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_unrealize (GtkWidget *widget)
|
|
{
|
|
EelEditableLabel *label;
|
|
|
|
label = EEL_EDITABLE_LABEL (widget);
|
|
|
|
gtk_gc_release (label->primary_cursor_gc);
|
|
label->primary_cursor_gc = NULL;
|
|
|
|
gtk_gc_release (label->secondary_cursor_gc);
|
|
label->secondary_cursor_gc = NULL;
|
|
|
|
/* Strange. Copied from GtkEntry, should be NULL? */
|
|
gtk_im_context_set_client_window (label->im_context, NULL);
|
|
|
|
(* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_map (GtkWidget *widget)
|
|
{
|
|
(* GTK_WIDGET_CLASS (parent_class)->map) (widget);
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_unmap (GtkWidget *widget)
|
|
{
|
|
(* GTK_WIDGET_CLASS (parent_class)->unmap) (widget);
|
|
}
|
|
|
|
static void
|
|
window_to_layout_coords (EelEditableLabel *label,
|
|
gint *x,
|
|
gint *y)
|
|
{
|
|
gint lx, ly;
|
|
|
|
/* get layout location in widget->window coords */
|
|
get_layout_location (label, &lx, &ly);
|
|
|
|
if (x)
|
|
*x -= lx; /* go to layout */
|
|
|
|
if (y)
|
|
*y -= ly; /* go to layout */
|
|
}
|
|
|
|
static void
|
|
get_layout_index (EelEditableLabel *label,
|
|
gint x,
|
|
gint y,
|
|
gint *index)
|
|
{
|
|
gint trailing = 0;
|
|
const gchar *cluster;
|
|
const gchar *cluster_end;
|
|
|
|
*index = 0;
|
|
|
|
eel_editable_label_ensure_layout (label, TRUE);
|
|
|
|
window_to_layout_coords (label, &x, &y);
|
|
|
|
x *= PANGO_SCALE;
|
|
y *= PANGO_SCALE;
|
|
|
|
pango_layout_xy_to_index (label->layout,
|
|
x, y,
|
|
index, &trailing);
|
|
|
|
if (*index >= label->selection_anchor && label->preedit_length)
|
|
{
|
|
if (*index >= label->selection_anchor + label->preedit_length)
|
|
*index -= label->preedit_length;
|
|
else
|
|
{
|
|
*index = label->selection_anchor;
|
|
trailing = 0;
|
|
}
|
|
}
|
|
|
|
cluster = label->text + *index;
|
|
cluster_end = cluster;
|
|
while (trailing)
|
|
{
|
|
cluster_end = g_utf8_next_char (cluster_end);
|
|
--trailing;
|
|
}
|
|
|
|
*index += (cluster_end - cluster);
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_select_word (EelEditableLabel *label)
|
|
{
|
|
gint min, max;
|
|
|
|
gint start_index = eel_editable_label_move_backward_word (label, label->selection_end);
|
|
gint end_index = eel_editable_label_move_forward_word (label, label->selection_end);
|
|
|
|
min = MIN (label->selection_anchor,
|
|
label->selection_end);
|
|
max = MAX (label->selection_anchor,
|
|
label->selection_end);
|
|
|
|
min = MIN (min, start_index);
|
|
max = MAX (max, end_index);
|
|
|
|
eel_editable_label_select_region_index (label, min, max);
|
|
}
|
|
|
|
static gint
|
|
eel_editable_label_button_press (GtkWidget *widget,
|
|
GdkEventButton *event)
|
|
{
|
|
EelEditableLabel *label;
|
|
gint index = 0;
|
|
|
|
label = EEL_EDITABLE_LABEL (widget);
|
|
|
|
if (event->button == 1)
|
|
{
|
|
if (!GTK_WIDGET_HAS_FOCUS (widget))
|
|
gtk_widget_grab_focus (widget);
|
|
|
|
if (event->type == GDK_3BUTTON_PRESS)
|
|
{
|
|
eel_editable_label_select_region_index (label, 0, strlen (label->text));
|
|
return TRUE;
|
|
}
|
|
|
|
if (event->type == GDK_2BUTTON_PRESS)
|
|
{
|
|
eel_editable_label_select_word (label);
|
|
return TRUE;
|
|
}
|
|
|
|
get_layout_index (label, event->x, event->y, &index);
|
|
|
|
if ((label->selection_anchor !=
|
|
label->selection_end) &&
|
|
(event->state & GDK_SHIFT_MASK))
|
|
{
|
|
gint min, max;
|
|
|
|
/* extend (same as motion) */
|
|
min = MIN (label->selection_anchor,
|
|
label->selection_end);
|
|
max = MAX (label->selection_anchor,
|
|
label->selection_end);
|
|
|
|
min = MIN (min, index);
|
|
max = MAX (max, index);
|
|
|
|
/* ensure the anchor is opposite index */
|
|
if (index == min)
|
|
{
|
|
gint tmp = min;
|
|
min = max;
|
|
max = tmp;
|
|
}
|
|
|
|
eel_editable_label_select_region_index (label, min, max);
|
|
}
|
|
else
|
|
{
|
|
if (event->type == GDK_3BUTTON_PRESS)
|
|
eel_editable_label_select_region_index (label, 0, strlen (label->text));
|
|
else if (event->type == GDK_2BUTTON_PRESS)
|
|
eel_editable_label_select_word (label);
|
|
else
|
|
/* start a replacement */
|
|
eel_editable_label_select_region_index (label, index, index);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
else if (event->button == 2 && event->type == GDK_BUTTON_PRESS)
|
|
{
|
|
get_layout_index (label, event->x, event->y, &index);
|
|
|
|
eel_editable_label_select_region_index (label, index, index);
|
|
eel_editable_label_paste (label, GDK_SELECTION_PRIMARY);
|
|
|
|
return TRUE;
|
|
}
|
|
else if (event->button == 3 && event->type == GDK_BUTTON_PRESS)
|
|
{
|
|
eel_editable_label_do_popup (label, event);
|
|
|
|
return TRUE;
|
|
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
static gint
|
|
eel_editable_label_button_release (GtkWidget *widget,
|
|
GdkEventButton *event)
|
|
|
|
{
|
|
if (event->button != 1)
|
|
return FALSE;
|
|
|
|
/* The goal here is to return TRUE iff we ate the
|
|
* button press to start selecting.
|
|
*/
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gint
|
|
eel_editable_label_motion (GtkWidget *widget,
|
|
GdkEventMotion *event)
|
|
{
|
|
EelEditableLabel *label;
|
|
gint index;
|
|
gint x, y;
|
|
|
|
label = EEL_EDITABLE_LABEL (widget);
|
|
|
|
if ((event->state & GDK_BUTTON1_MASK) == 0)
|
|
return FALSE;
|
|
|
|
gdk_window_get_pointer (widget->window,
|
|
&x, &y, NULL);
|
|
|
|
get_layout_index (label, x, y, &index);
|
|
|
|
eel_editable_label_select_region_index (label,
|
|
label->selection_anchor,
|
|
index);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
get_text_callback (GtkClipboard *clipboard,
|
|
GtkSelectionData *selection_data,
|
|
guint info,
|
|
gpointer user_data_or_owner)
|
|
{
|
|
EelEditableLabel *label;
|
|
|
|
label = EEL_EDITABLE_LABEL (user_data_or_owner);
|
|
|
|
if ((label->selection_anchor != label->selection_end) &&
|
|
label->text)
|
|
{
|
|
gint start, end;
|
|
gint len;
|
|
|
|
start = MIN (label->selection_anchor,
|
|
label->selection_end);
|
|
end = MAX (label->selection_anchor,
|
|
label->selection_end);
|
|
|
|
len = strlen (label->text);
|
|
|
|
if (end > len)
|
|
end = len;
|
|
|
|
if (start > len)
|
|
start = len;
|
|
|
|
gtk_selection_data_set_text (selection_data,
|
|
label->text + start,
|
|
end - start);
|
|
}
|
|
}
|
|
|
|
static void
|
|
clear_text_callback (GtkClipboard *clipboard,
|
|
gpointer user_data_or_owner)
|
|
{
|
|
EelEditableLabel *label;
|
|
|
|
label = EEL_EDITABLE_LABEL (user_data_or_owner);
|
|
|
|
label->selection_anchor = label->selection_end;
|
|
|
|
gtk_widget_queue_draw (GTK_WIDGET (label));
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_select_region_index (EelEditableLabel *label,
|
|
gint anchor_index,
|
|
gint end_index)
|
|
{
|
|
GtkClipboard *clipboard;
|
|
|
|
g_assert (EEL_IS_EDITABLE_LABEL (label));
|
|
|
|
|
|
if (label->selection_anchor == anchor_index &&
|
|
label->selection_end == end_index)
|
|
return;
|
|
|
|
eel_editable_label_reset_im_context (label);
|
|
|
|
label->selection_anchor = anchor_index;
|
|
label->selection_end = end_index;
|
|
|
|
clipboard = gtk_clipboard_get (GDK_SELECTION_PRIMARY);
|
|
|
|
if (anchor_index != end_index)
|
|
{
|
|
GtkTargetList *list;
|
|
GtkTargetEntry *targets;
|
|
guint n_targets;
|
|
|
|
list = gtk_target_list_new (NULL, 0);
|
|
gtk_target_list_add_text_targets (list, 0);
|
|
targets = gtk_target_table_new_from_list (list, &n_targets);
|
|
|
|
gtk_clipboard_set_with_owner (clipboard,
|
|
targets, n_targets,
|
|
get_text_callback,
|
|
clear_text_callback,
|
|
G_OBJECT (label));
|
|
|
|
gtk_clipboard_set_can_store (clipboard, NULL, 0);
|
|
gtk_target_table_free (targets, n_targets);
|
|
gtk_target_list_unref (list);
|
|
}
|
|
else
|
|
{
|
|
if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (label))
|
|
gtk_clipboard_clear (clipboard);
|
|
}
|
|
|
|
gtk_widget_queue_draw (GTK_WIDGET (label));
|
|
|
|
g_object_freeze_notify (G_OBJECT (label));
|
|
g_object_notify (G_OBJECT (label), "cursor_position");
|
|
g_object_notify (G_OBJECT (label), "selection_bound");
|
|
g_object_thaw_notify (G_OBJECT (label));
|
|
}
|
|
|
|
/**
|
|
* eel_editable_label_select_region:
|
|
* @label: a #EelEditableLabel
|
|
* @start_offset: start offset (in characters not bytes)
|
|
* @end_offset: end offset (in characters not bytes)
|
|
*
|
|
* Selects a range of characters in the label, if the label is selectable.
|
|
* See eel_editable_label_set_selectable(). If the label is not selectable,
|
|
* this function has no effect. If @start_offset or
|
|
* @end_offset are -1, then the end of the label will be substituted.
|
|
*
|
|
**/
|
|
void
|
|
eel_editable_label_select_region (EelEditableLabel *label,
|
|
gint start_offset,
|
|
gint end_offset)
|
|
{
|
|
g_return_if_fail (EEL_IS_EDITABLE_LABEL (label));
|
|
|
|
if (label->text)
|
|
{
|
|
if (start_offset < 0)
|
|
start_offset = g_utf8_strlen (label->text, -1);
|
|
|
|
if (end_offset < 0)
|
|
end_offset = g_utf8_strlen (label->text, -1);
|
|
|
|
eel_editable_label_select_region_index (label,
|
|
g_utf8_offset_to_pointer (label->text, start_offset) - label->text,
|
|
g_utf8_offset_to_pointer (label->text, end_offset) - label->text);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* eel_editable_label_get_selection_bounds:
|
|
* @label: a #EelEditableLabel
|
|
* @start: return location for start of selection, as a character offset
|
|
* @end: return location for end of selection, as a character offset
|
|
*
|
|
* Gets the selected range of characters in the label, returning %TRUE
|
|
* if there's a selection.
|
|
*
|
|
* Return value: %TRUE if selection is non-empty
|
|
**/
|
|
gboolean
|
|
eel_editable_label_get_selection_bounds (EelEditableLabel *label,
|
|
gint *start,
|
|
gint *end)
|
|
{
|
|
gint start_index, end_index;
|
|
gint start_offset, end_offset;
|
|
gint len;
|
|
|
|
g_return_val_if_fail (EEL_IS_EDITABLE_LABEL (label), FALSE);
|
|
|
|
|
|
start_index = MIN (label->selection_anchor,
|
|
label->selection_end);
|
|
end_index = MAX (label->selection_anchor,
|
|
label->selection_end);
|
|
|
|
len = strlen (label->text);
|
|
|
|
if (end_index > len)
|
|
end_index = len;
|
|
|
|
if (start_index > len)
|
|
start_index = len;
|
|
|
|
start_offset = g_utf8_strlen (label->text, start_index);
|
|
end_offset = g_utf8_strlen (label->text, end_index);
|
|
|
|
if (start_offset > end_offset)
|
|
{
|
|
gint tmp = start_offset;
|
|
start_offset = end_offset;
|
|
end_offset = tmp;
|
|
}
|
|
|
|
if (start)
|
|
*start = start_offset;
|
|
|
|
if (end)
|
|
*end = end_offset;
|
|
|
|
return start_offset != end_offset;
|
|
}
|
|
|
|
|
|
/**
|
|
* eel_editable_label_get_layout:
|
|
* @label: a #EelEditableLabel
|
|
*
|
|
* Gets the #PangoLayout used to display the label.
|
|
* The layout is useful to e.g. convert text positions to
|
|
* pixel positions, in combination with eel_editable_label_get_layout_offsets().
|
|
* The returned layout is owned by the label so need not be
|
|
* freed by the caller.
|
|
*
|
|
* Return value: the #PangoLayout for this label
|
|
**/
|
|
PangoLayout*
|
|
eel_editable_label_get_layout (EelEditableLabel *label)
|
|
{
|
|
g_return_val_if_fail (EEL_IS_EDITABLE_LABEL (label), NULL);
|
|
|
|
eel_editable_label_ensure_layout (label, TRUE);
|
|
|
|
return label->layout;
|
|
}
|
|
|
|
/**
|
|
* eel_editable_label_get_layout_offsets:
|
|
* @label: a #EelEditableLabel
|
|
* @x: location to store X offset of layout, or %NULL
|
|
* @y: location to store Y offset of layout, or %NULL
|
|
*
|
|
* Obtains the coordinates where the label will draw the #PangoLayout
|
|
* representing the text in the label; useful to convert mouse events
|
|
* into coordinates inside the #PangoLayout, e.g. to take some action
|
|
* if some part of the label is clicked. Of course you will need to
|
|
* create a #GtkEventBox to receive the events, and pack the label
|
|
* inside it, since labels are a #GTK_NO_WINDOW widget. Remember
|
|
* when using the #PangoLayout functions you need to convert to
|
|
* and from pixels using PANGO_PIXELS() or #PANGO_SCALE.
|
|
*
|
|
**/
|
|
void
|
|
eel_editable_label_get_layout_offsets (EelEditableLabel *label,
|
|
gint *x,
|
|
gint *y)
|
|
{
|
|
g_return_if_fail (EEL_IS_EDITABLE_LABEL (label));
|
|
|
|
get_layout_location (label, x, y);
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_pend_cursor_blink (EelEditableLabel *label)
|
|
{
|
|
/* TODO */
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_check_cursor_blink (EelEditableLabel *label)
|
|
{
|
|
/* TODO */
|
|
}
|
|
|
|
static gint
|
|
eel_editable_label_key_press (GtkWidget *widget,
|
|
GdkEventKey *event)
|
|
{
|
|
EelEditableLabel *label = EEL_EDITABLE_LABEL (widget);
|
|
|
|
eel_editable_label_pend_cursor_blink (label);
|
|
|
|
if (gtk_im_context_filter_keypress (label->im_context, event))
|
|
{
|
|
/*TODO eel_editable_label_obscure_mouse_cursor (label);*/
|
|
label->need_im_reset = TRUE;
|
|
return TRUE;
|
|
}
|
|
|
|
if (GTK_WIDGET_CLASS (parent_class)->key_press_event (widget, event))
|
|
/* Activate key bindings
|
|
*/
|
|
return TRUE;
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gint
|
|
eel_editable_label_key_release (GtkWidget *widget,
|
|
GdkEventKey *event)
|
|
{
|
|
EelEditableLabel *label = EEL_EDITABLE_LABEL (widget);
|
|
|
|
if (gtk_im_context_filter_keypress (label->im_context, event))
|
|
{
|
|
label->need_im_reset = TRUE;
|
|
return TRUE;
|
|
}
|
|
|
|
return GTK_WIDGET_CLASS (parent_class)->key_release_event (widget, event);
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_keymap_direction_changed (GdkKeymap *keymap,
|
|
EelEditableLabel *label)
|
|
{
|
|
gtk_widget_queue_draw (GTK_WIDGET (label));
|
|
}
|
|
|
|
static gint
|
|
eel_editable_label_focus_in (GtkWidget *widget,
|
|
GdkEventFocus *event)
|
|
{
|
|
EelEditableLabel *label = EEL_EDITABLE_LABEL (widget);
|
|
|
|
gtk_widget_queue_draw (widget);
|
|
|
|
label->need_im_reset = TRUE;
|
|
gtk_im_context_focus_in (label->im_context);
|
|
|
|
g_signal_connect (gdk_keymap_get_default (),
|
|
"direction_changed",
|
|
G_CALLBACK (eel_editable_label_keymap_direction_changed), label);
|
|
|
|
eel_editable_label_check_cursor_blink (label);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gint
|
|
eel_editable_label_focus_out (GtkWidget *widget,
|
|
GdkEventFocus *event)
|
|
{
|
|
EelEditableLabel *label = EEL_EDITABLE_LABEL (widget);
|
|
|
|
gtk_widget_queue_draw (widget);
|
|
|
|
label->need_im_reset = TRUE;
|
|
gtk_im_context_focus_out (label->im_context);
|
|
|
|
eel_editable_label_check_cursor_blink (label);
|
|
|
|
g_signal_handlers_disconnect_by_func (gdk_keymap_get_default (),
|
|
(gpointer) eel_editable_label_keymap_direction_changed,
|
|
label);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_delete_text (EelEditableLabel *label,
|
|
int start_pos,
|
|
int end_pos)
|
|
{
|
|
int anchor, end;
|
|
|
|
if (start_pos < 0)
|
|
start_pos = 0;
|
|
if (end_pos < 0 || end_pos > label->n_bytes)
|
|
end_pos = label->n_bytes;
|
|
|
|
if (start_pos < end_pos)
|
|
{
|
|
g_memmove (label->text + start_pos, label->text + end_pos, label->n_bytes + 1 - end_pos);
|
|
label->n_bytes -= (end_pos - start_pos);
|
|
|
|
anchor = label->selection_anchor;
|
|
if (anchor > start_pos)
|
|
anchor -= MIN (anchor, end_pos) - start_pos;
|
|
|
|
end = label->selection_end;
|
|
if (end > start_pos)
|
|
end -= MIN (end, end_pos) - start_pos;
|
|
|
|
/* We might have changed the selection */
|
|
eel_editable_label_select_region_index (label, anchor, end);
|
|
|
|
eel_editable_label_recompute (label);
|
|
gtk_widget_queue_resize (GTK_WIDGET (label));
|
|
|
|
g_object_notify (G_OBJECT (label), "text");
|
|
g_signal_emit_by_name (GTK_EDITABLE (label), "changed");
|
|
}
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_insert_text (EelEditableLabel *label,
|
|
const gchar *new_text,
|
|
gint new_text_length,
|
|
gint *index)
|
|
{
|
|
if (new_text_length + label->n_bytes + 1 > label->text_size)
|
|
{
|
|
while (new_text_length + label->n_bytes + 1 > label->text_size)
|
|
{
|
|
if (label->text_size == 0)
|
|
label->text_size = 16;
|
|
else
|
|
label->text_size *= 2;
|
|
}
|
|
|
|
label->text = g_realloc (label->text, label->text_size);
|
|
}
|
|
|
|
g_object_freeze_notify (G_OBJECT (label));
|
|
|
|
g_memmove (label->text + *index + new_text_length, label->text + *index, label->n_bytes - *index);
|
|
memcpy (label->text + *index, new_text, new_text_length);
|
|
|
|
label->n_bytes += new_text_length;
|
|
|
|
/* NUL terminate for safety and convenience */
|
|
label->text[label->n_bytes] = '\0';
|
|
|
|
g_object_notify (G_OBJECT (label), "text");
|
|
|
|
if (label->selection_anchor > *index)
|
|
{
|
|
g_object_notify (G_OBJECT (label), "cursor_position");
|
|
g_object_notify (G_OBJECT (label), "selection_bound");
|
|
label->selection_anchor += new_text_length;
|
|
}
|
|
|
|
if (label->selection_end > *index)
|
|
{
|
|
label->selection_end += new_text_length;
|
|
g_object_notify (G_OBJECT (label), "selection_bound");
|
|
}
|
|
|
|
*index += new_text_length;
|
|
|
|
eel_editable_label_recompute (label);
|
|
gtk_widget_queue_resize (GTK_WIDGET (label));
|
|
|
|
g_object_thaw_notify (G_OBJECT (label));
|
|
g_signal_emit_by_name (GTK_EDITABLE (label), "changed");
|
|
}
|
|
|
|
/* Used for im_commit_cb and inserting Unicode chars */
|
|
static void
|
|
eel_editable_label_enter_text (EelEditableLabel *label,
|
|
const gchar *str)
|
|
{
|
|
GtkEditable *editable = GTK_EDITABLE (label);
|
|
gint tmp_pos;
|
|
gboolean old_need_im_reset;
|
|
|
|
/* Never reset the im while commiting, as that resets possible im state */
|
|
old_need_im_reset = label->need_im_reset;
|
|
label->need_im_reset = FALSE;
|
|
|
|
if (label->selection_end != label->selection_anchor)
|
|
gtk_editable_delete_selection (editable);
|
|
else
|
|
{
|
|
if (label->overwrite_mode)
|
|
eel_editable_label_delete_from_cursor (label, GTK_DELETE_CHARS, 1);
|
|
}
|
|
|
|
tmp_pos = g_utf8_pointer_to_offset (label->text,
|
|
label->text + label->selection_anchor);
|
|
gtk_editable_insert_text (GTK_EDITABLE (label), str, strlen (str), &tmp_pos);
|
|
tmp_pos = g_utf8_offset_to_pointer (label->text, tmp_pos) - label->text;
|
|
eel_editable_label_select_region_index (label, tmp_pos, tmp_pos);
|
|
|
|
label->need_im_reset = old_need_im_reset;
|
|
}
|
|
|
|
/* IM Context Callbacks
|
|
*/
|
|
|
|
static void
|
|
eel_editable_label_commit_cb (GtkIMContext *context,
|
|
const gchar *str,
|
|
EelEditableLabel *label)
|
|
{
|
|
eel_editable_label_enter_text (label, str);
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_preedit_changed_cb (GtkIMContext *context,
|
|
EelEditableLabel *label)
|
|
{
|
|
gchar *preedit_string;
|
|
gint cursor_pos;
|
|
|
|
gtk_im_context_get_preedit_string (label->im_context,
|
|
&preedit_string, NULL,
|
|
&cursor_pos);
|
|
label->preedit_length = strlen (preedit_string);
|
|
cursor_pos = CLAMP (cursor_pos, 0, g_utf8_strlen (preedit_string, -1));
|
|
label->preedit_cursor = cursor_pos;
|
|
g_free (preedit_string);
|
|
|
|
eel_editable_label_recompute (label);
|
|
gtk_widget_queue_resize (GTK_WIDGET (label));
|
|
}
|
|
|
|
static gboolean
|
|
eel_editable_label_retrieve_surrounding_cb (GtkIMContext *context,
|
|
EelEditableLabel *label)
|
|
{
|
|
gtk_im_context_set_surrounding (context,
|
|
label->text,
|
|
strlen (label->text) + 1,
|
|
label->selection_end);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
eel_editable_label_delete_surrounding_cb (GtkIMContext *slave,
|
|
gint offset,
|
|
gint n_chars,
|
|
EelEditableLabel *label)
|
|
{
|
|
gint current_pos;
|
|
|
|
current_pos = g_utf8_pointer_to_offset (label->text, label->text + label->selection_anchor);
|
|
gtk_editable_delete_text (GTK_EDITABLE (label),
|
|
current_pos + offset,
|
|
current_pos + offset + n_chars);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
eel_editable_label_focus (GtkWidget *widget,
|
|
GtkDirectionType direction)
|
|
{
|
|
/* We never want to be in the tab chain */
|
|
return FALSE;
|
|
}
|
|
|
|
/* Compute the X position for an offset that corresponds to the "more important
|
|
* cursor position for that offset. We use this when trying to guess to which
|
|
* end of the selection we should go to when the user hits the left or
|
|
* right arrow key.
|
|
*/
|
|
static void
|
|
get_better_cursor (EelEditableLabel *label,
|
|
gint index,
|
|
gint *x,
|
|
gint *y)
|
|
{
|
|
GtkTextDirection keymap_direction =
|
|
(gdk_keymap_get_direction (gdk_keymap_get_default ()) == PANGO_DIRECTION_LTR) ?
|
|
GTK_TEXT_DIR_LTR : GTK_TEXT_DIR_RTL;
|
|
GtkTextDirection widget_direction = gtk_widget_get_direction (GTK_WIDGET (label));
|
|
gboolean split_cursor;
|
|
PangoRectangle strong_pos, weak_pos;
|
|
|
|
g_object_get (gtk_widget_get_settings (GTK_WIDGET (label)),
|
|
"gtk-split-cursor", &split_cursor,
|
|
NULL);
|
|
|
|
eel_editable_label_get_cursor_pos (label, &strong_pos, &weak_pos);
|
|
|
|
if (split_cursor)
|
|
{
|
|
*x = strong_pos.x / PANGO_SCALE;
|
|
*y = strong_pos.y / PANGO_SCALE;
|
|
}
|
|
else
|
|
{
|
|
if (keymap_direction == widget_direction)
|
|
{
|
|
*x = strong_pos.x / PANGO_SCALE;
|
|
*y = strong_pos.y / PANGO_SCALE;
|
|
}
|
|
else
|
|
{
|
|
*x = weak_pos.x / PANGO_SCALE;
|
|
*y = weak_pos.y / PANGO_SCALE;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
static gint
|
|
eel_editable_label_move_logically (EelEditableLabel *label,
|
|
gint start,
|
|
gint count)
|
|
{
|
|
gint offset = g_utf8_pointer_to_offset (label->text,
|
|
label->text + start);
|
|
|
|
if (label->text)
|
|
{
|
|
PangoLogAttr *log_attrs;
|
|
gint n_attrs;
|
|
gint length;
|
|
|
|
eel_editable_label_ensure_layout (label, FALSE);
|
|
|
|
length = g_utf8_strlen (label->text, -1);
|
|
|
|
pango_layout_get_log_attrs (label->layout, &log_attrs, &n_attrs);
|
|
|
|
while (count > 0 && offset < length)
|
|
{
|
|
do
|
|
offset++;
|
|
while (offset < length && !log_attrs[offset].is_cursor_position);
|
|
|
|
count--;
|
|
}
|
|
while (count < 0 && offset > 0)
|
|
{
|
|
do
|
|
offset--;
|
|
while (offset > 0 && !log_attrs[offset].is_cursor_position);
|
|
|
|
count++;
|
|
}
|
|
|
|
g_free (log_attrs);
|
|
}
|
|
|
|
return g_utf8_offset_to_pointer (label->text, offset) - label->text;
|
|
}
|
|
|
|
static gint
|
|
eel_editable_label_move_visually (EelEditableLabel *label,
|
|
gint start,
|
|
gint count)
|
|
{
|
|
gint index;
|
|
|
|
index = start;
|
|
|
|
while (count != 0)
|
|
{
|
|
int new_index, new_trailing;
|
|
gboolean split_cursor;
|
|
gboolean strong;
|
|
|
|
eel_editable_label_ensure_layout (label, FALSE);
|
|
|
|
g_object_get (gtk_widget_get_settings (GTK_WIDGET (label)),
|
|
"gtk-split-cursor", &split_cursor,
|
|
NULL);
|
|
|
|
if (split_cursor)
|
|
strong = TRUE;
|
|
else
|
|
{
|
|
GtkTextDirection keymap_direction =
|
|
(gdk_keymap_get_direction (gdk_keymap_get_default ()) == PANGO_DIRECTION_LTR) ?
|
|
GTK_TEXT_DIR_LTR : GTK_TEXT_DIR_RTL;
|
|
|
|
strong = keymap_direction == gtk_widget_get_direction (GTK_WIDGET (label));
|
|
}
|
|
|
|
if (count > 0)
|
|
{
|
|
pango_layout_move_cursor_visually (label->layout, strong, index, 0, 1, &new_index, &new_trailing);
|
|
count--;
|
|
}
|
|
else
|
|
{
|
|
pango_layout_move_cursor_visually (label->layout, strong, index, 0, -1, &new_index, &new_trailing);
|
|
count++;
|
|
}
|
|
|
|
if (new_index < 0 || new_index == G_MAXINT)
|
|
break;
|
|
|
|
index = new_index;
|
|
|
|
while (new_trailing--)
|
|
index = g_utf8_next_char (label->text + new_index) - label->text;
|
|
}
|
|
|
|
return index;
|
|
}
|
|
|
|
static gint
|
|
eel_editable_label_move_line (EelEditableLabel *label,
|
|
gint start,
|
|
gint count)
|
|
{
|
|
int n_lines, i;
|
|
int x;
|
|
PangoLayoutLine *line;
|
|
int index;
|
|
|
|
eel_editable_label_ensure_layout (label, FALSE);
|
|
|
|
n_lines = pango_layout_get_line_count (label->layout);
|
|
|
|
for (i = 0; i < n_lines; i++)
|
|
{
|
|
line = pango_layout_get_line (label->layout, i);
|
|
if (start >= line->start_index &&
|
|
start <= line->start_index + line->length)
|
|
{
|
|
pango_layout_line_index_to_x (line, start, FALSE, &x);
|
|
break;
|
|
}
|
|
}
|
|
if (i == n_lines)
|
|
i = n_lines - 1;
|
|
|
|
i += count;
|
|
i = CLAMP (i, 0, n_lines - 1);
|
|
|
|
line = pango_layout_get_line (label->layout, i);
|
|
if (pango_layout_line_x_to_index (line,
|
|
x,
|
|
&index, NULL))
|
|
return index;
|
|
else
|
|
{
|
|
if (i == n_lines - 1)
|
|
return line->start_index + line->length;
|
|
else
|
|
return line->start_index + line->length - 1;
|
|
}
|
|
}
|
|
|
|
static gint
|
|
eel_editable_label_move_forward_word (EelEditableLabel *label,
|
|
gint start)
|
|
{
|
|
gint new_pos = g_utf8_pointer_to_offset (label->text,
|
|
label->text + start);
|
|
gint length;
|
|
|
|
length = g_utf8_strlen (label->text, -1);
|
|
if (new_pos < length)
|
|
{
|
|
PangoLogAttr *log_attrs;
|
|
gint n_attrs;
|
|
|
|
eel_editable_label_ensure_layout (label, FALSE);
|
|
|
|
pango_layout_get_log_attrs (label->layout, &log_attrs, &n_attrs);
|
|
|
|
/* Find the next word end */
|
|
new_pos++;
|
|
while (new_pos < n_attrs && !log_attrs[new_pos].is_word_end)
|
|
new_pos++;
|
|
|
|
g_free (log_attrs);
|
|
}
|
|
|
|
return g_utf8_offset_to_pointer (label->text, new_pos) - label->text;
|
|
}
|
|
|
|
|
|
static gint
|
|
eel_editable_label_move_backward_word (EelEditableLabel *label,
|
|
gint start)
|
|
{
|
|
gint new_pos = g_utf8_pointer_to_offset (label->text,
|
|
label->text + start);
|
|
|
|
if (new_pos > 0)
|
|
{
|
|
PangoLogAttr *log_attrs;
|
|
gint n_attrs;
|
|
|
|
eel_editable_label_ensure_layout (label, FALSE);
|
|
|
|
pango_layout_get_log_attrs (label->layout, &log_attrs, &n_attrs);
|
|
|
|
new_pos -= 1;
|
|
|
|
/* Find the previous word beginning */
|
|
while (new_pos > 0 && !log_attrs[new_pos].is_word_start)
|
|
new_pos--;
|
|
|
|
g_free (log_attrs);
|
|
}
|
|
|
|
return g_utf8_offset_to_pointer (label->text, new_pos) - label->text;
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_move_cursor (EelEditableLabel *label,
|
|
GtkMovementStep step,
|
|
gint count,
|
|
gboolean extend_selection)
|
|
{
|
|
gint new_pos;
|
|
|
|
new_pos = label->selection_end;
|
|
|
|
if (label->selection_end != label->selection_anchor &&
|
|
!extend_selection)
|
|
{
|
|
/* If we have a current selection and aren't extending it, move to the
|
|
* start/or end of the selection as appropriate
|
|
*/
|
|
switch (step)
|
|
{
|
|
case GTK_MOVEMENT_DISPLAY_LINES:
|
|
case GTK_MOVEMENT_VISUAL_POSITIONS:
|
|
{
|
|
gint end_x, end_y;
|
|
gint anchor_x, anchor_y;
|
|
gboolean end_is_left;
|
|
|
|
get_better_cursor (label, label->selection_end, &end_x, &end_y);
|
|
get_better_cursor (label, label->selection_anchor, &anchor_x, &anchor_y);
|
|
|
|
end_is_left = (end_y < anchor_y) || (end_y == anchor_y && end_x < anchor_x);
|
|
|
|
if (count < 0)
|
|
new_pos = end_is_left ? label->selection_end : label->selection_anchor;
|
|
else
|
|
new_pos = !end_is_left ? label->selection_end : label->selection_anchor;
|
|
|
|
break;
|
|
}
|
|
case GTK_MOVEMENT_LOGICAL_POSITIONS:
|
|
case GTK_MOVEMENT_WORDS:
|
|
if (count < 0)
|
|
new_pos = MIN (label->selection_end, label->selection_anchor);
|
|
else
|
|
new_pos = MAX (label->selection_end, label->selection_anchor);
|
|
break;
|
|
case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
|
|
case GTK_MOVEMENT_PARAGRAPH_ENDS:
|
|
case GTK_MOVEMENT_BUFFER_ENDS:
|
|
/* FIXME: Can do better here */
|
|
new_pos = count < 0 ? 0 : strlen (label->text);
|
|
break;
|
|
case GTK_MOVEMENT_PARAGRAPHS:
|
|
case GTK_MOVEMENT_PAGES:
|
|
break;
|
|
default:
|
|
g_assert_not_reached ();
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
switch (step)
|
|
{
|
|
case GTK_MOVEMENT_LOGICAL_POSITIONS:
|
|
new_pos = eel_editable_label_move_logically (label, new_pos, count);
|
|
break;
|
|
case GTK_MOVEMENT_VISUAL_POSITIONS:
|
|
new_pos = eel_editable_label_move_visually (label, new_pos, count);
|
|
break;
|
|
case GTK_MOVEMENT_WORDS:
|
|
while (count > 0)
|
|
{
|
|
new_pos = eel_editable_label_move_forward_word (label, new_pos);
|
|
count--;
|
|
}
|
|
while (count < 0)
|
|
{
|
|
new_pos = eel_editable_label_move_backward_word (label, new_pos);
|
|
count++;
|
|
}
|
|
break;
|
|
case GTK_MOVEMENT_DISPLAY_LINE_ENDS:
|
|
case GTK_MOVEMENT_PARAGRAPH_ENDS:
|
|
case GTK_MOVEMENT_BUFFER_ENDS:
|
|
/* FIXME: Can do better here */
|
|
new_pos = count < 0 ? 0 : strlen (label->text);
|
|
break;
|
|
case GTK_MOVEMENT_DISPLAY_LINES:
|
|
new_pos = eel_editable_label_move_line (label, new_pos, count);
|
|
break;
|
|
break;
|
|
case GTK_MOVEMENT_PARAGRAPHS:
|
|
case GTK_MOVEMENT_PAGES:
|
|
break;
|
|
default:
|
|
g_assert_not_reached ();
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (extend_selection)
|
|
gtk_editable_select_region (GTK_EDITABLE (label),
|
|
label->selection_anchor,
|
|
new_pos);
|
|
else
|
|
gtk_editable_set_position (GTK_EDITABLE (label), new_pos);
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_reset_im_context (EelEditableLabel *label)
|
|
{
|
|
if (label->need_im_reset)
|
|
{
|
|
label->need_im_reset = 0;
|
|
gtk_im_context_reset (label->im_context);
|
|
}
|
|
}
|
|
|
|
|
|
static void
|
|
eel_editable_label_delete_from_cursor (EelEditableLabel *label,
|
|
GtkDeleteType type,
|
|
gint count)
|
|
{
|
|
GtkEditable *editable = GTK_EDITABLE (label);
|
|
gint start_pos = label->selection_anchor;
|
|
gint end_pos = label->selection_anchor;
|
|
|
|
eel_editable_label_reset_im_context (label);
|
|
|
|
if (label->selection_anchor != label->selection_end)
|
|
{
|
|
gtk_editable_delete_selection (editable);
|
|
return;
|
|
}
|
|
|
|
switch (type)
|
|
{
|
|
case GTK_DELETE_CHARS:
|
|
end_pos = eel_editable_label_move_logically (label, start_pos, count);
|
|
start_pos = g_utf8_pointer_to_offset (label->text, label->text + start_pos);
|
|
end_pos = g_utf8_pointer_to_offset (label->text, label->text + end_pos);
|
|
gtk_editable_delete_text (GTK_EDITABLE (label), MIN (start_pos, end_pos), MAX (start_pos, end_pos));
|
|
break;
|
|
case GTK_DELETE_WORDS:
|
|
if (count < 0)
|
|
{
|
|
/* Move to end of current word, or if not on a word, end of previous word */
|
|
end_pos = eel_editable_label_move_backward_word (label, end_pos);
|
|
end_pos = eel_editable_label_move_forward_word (label, end_pos);
|
|
}
|
|
else if (count > 0)
|
|
{
|
|
/* Move to beginning of current word, or if not on a word, begining of next word */
|
|
start_pos = eel_editable_label_move_forward_word (label, start_pos);
|
|
start_pos = eel_editable_label_move_backward_word (label, start_pos);
|
|
}
|
|
|
|
/* Fall through */
|
|
case GTK_DELETE_WORD_ENDS:
|
|
while (count < 0)
|
|
{
|
|
start_pos = eel_editable_label_move_backward_word (label, start_pos);
|
|
count++;
|
|
}
|
|
while (count > 0)
|
|
{
|
|
end_pos = eel_editable_label_move_forward_word (label, end_pos);
|
|
count--;
|
|
}
|
|
start_pos = g_utf8_pointer_to_offset (label->text, label->text + start_pos);
|
|
end_pos = g_utf8_pointer_to_offset (label->text, label->text + end_pos);
|
|
|
|
gtk_editable_delete_text (GTK_EDITABLE (label), start_pos, end_pos);
|
|
break;
|
|
case GTK_DELETE_DISPLAY_LINE_ENDS:
|
|
case GTK_DELETE_PARAGRAPH_ENDS:
|
|
end_pos = g_utf8_pointer_to_offset (label->text, label->text + label->selection_anchor);
|
|
if (count < 0)
|
|
gtk_editable_delete_text (GTK_EDITABLE (label), 0, end_pos);
|
|
else
|
|
gtk_editable_delete_text (GTK_EDITABLE (label), end_pos, -1);
|
|
break;
|
|
case GTK_DELETE_DISPLAY_LINES:
|
|
case GTK_DELETE_PARAGRAPHS:
|
|
gtk_editable_delete_text (GTK_EDITABLE (label), 0, -1);
|
|
break;
|
|
case GTK_DELETE_WHITESPACE:
|
|
/* TODO eel_editable_label_delete_whitespace (label); */
|
|
break;
|
|
}
|
|
|
|
eel_editable_label_pend_cursor_blink (label);
|
|
}
|
|
|
|
|
|
static void
|
|
eel_editable_label_copy_clipboard (EelEditableLabel *label)
|
|
{
|
|
if (label->text)
|
|
{
|
|
gint start, end;
|
|
gint len;
|
|
|
|
start = MIN (label->selection_anchor,
|
|
label->selection_end);
|
|
end = MAX (label->selection_anchor,
|
|
label->selection_end);
|
|
|
|
len = strlen (label->text);
|
|
|
|
if (end > len)
|
|
end = len;
|
|
|
|
if (start > len)
|
|
start = len;
|
|
|
|
if (start != end)
|
|
gtk_clipboard_set_text (gtk_clipboard_get (GDK_SELECTION_CLIPBOARD),
|
|
label->text + start, end - start);
|
|
}
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_cut_clipboard (EelEditableLabel *label)
|
|
{
|
|
if (label->text)
|
|
{
|
|
gint start, end;
|
|
gint len;
|
|
|
|
start = MIN (label->selection_anchor,
|
|
label->selection_end);
|
|
end = MAX (label->selection_anchor,
|
|
label->selection_end);
|
|
|
|
len = strlen (label->text);
|
|
|
|
if (end > len)
|
|
end = len;
|
|
|
|
if (start > len)
|
|
start = len;
|
|
|
|
if (start != end)
|
|
{
|
|
gtk_clipboard_set_text (gtk_clipboard_get (GDK_SELECTION_CLIPBOARD),
|
|
label->text + start, end - start);
|
|
start = g_utf8_pointer_to_offset (label->text, label->text + start);
|
|
end = g_utf8_pointer_to_offset (label->text, label->text + end);
|
|
gtk_editable_delete_text (GTK_EDITABLE (label), start, end);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
paste_received (GtkClipboard *clipboard,
|
|
const gchar *text,
|
|
gpointer data)
|
|
{
|
|
EelEditableLabel *label = EEL_EDITABLE_LABEL (data);
|
|
GtkEditable *editable = GTK_EDITABLE (label);
|
|
gint tmp_pos;
|
|
|
|
if (text)
|
|
{
|
|
if (label->selection_end != label->selection_anchor)
|
|
gtk_editable_delete_selection (editable);
|
|
|
|
tmp_pos = g_utf8_pointer_to_offset (label->text,
|
|
label->text + label->selection_anchor);
|
|
gtk_editable_insert_text (GTK_EDITABLE (label), text, strlen (text), &tmp_pos);
|
|
tmp_pos = g_utf8_offset_to_pointer (label->text, tmp_pos) - label->text;
|
|
eel_editable_label_select_region_index (label, tmp_pos, tmp_pos);
|
|
}
|
|
|
|
g_object_unref (G_OBJECT (label));
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_paste (EelEditableLabel *label,
|
|
GdkAtom selection)
|
|
{
|
|
g_object_ref (G_OBJECT (label));
|
|
gtk_clipboard_request_text (gtk_widget_get_clipboard (GTK_WIDGET (label), selection),
|
|
paste_received, label);
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_paste_clipboard (EelEditableLabel *label)
|
|
{
|
|
eel_editable_label_paste (label, GDK_NONE);
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_select_all (EelEditableLabel *label)
|
|
{
|
|
eel_editable_label_select_region_index (label, 0, strlen (label->text));
|
|
}
|
|
|
|
/* Quick hack of a popup menu
|
|
*/
|
|
static void
|
|
activate_cb (GtkWidget *menuitem,
|
|
EelEditableLabel *label)
|
|
{
|
|
const gchar *signal = g_object_get_data (G_OBJECT (menuitem), "gtk-signal");
|
|
g_signal_emit_by_name (GTK_OBJECT (label), signal);
|
|
}
|
|
|
|
static void
|
|
append_action_signal (EelEditableLabel *label,
|
|
GtkWidget *menu,
|
|
const gchar *stock_id,
|
|
const gchar *signal,
|
|
gboolean sensitive)
|
|
{
|
|
GtkWidget *menuitem = gtk_image_menu_item_new_from_stock (stock_id, NULL);
|
|
|
|
g_object_set_data (G_OBJECT (menuitem), "gtk-signal", (char *)signal);
|
|
g_signal_connect (GTK_OBJECT (menuitem), "activate",
|
|
GTK_SIGNAL_FUNC (activate_cb), label);
|
|
|
|
gtk_widget_set_sensitive (menuitem, sensitive);
|
|
|
|
gtk_widget_show (menuitem);
|
|
gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
|
|
}
|
|
|
|
static void
|
|
popup_menu_detach (GtkWidget *attach_widget,
|
|
GtkMenu *menu)
|
|
{
|
|
EelEditableLabel *label;
|
|
label = EEL_EDITABLE_LABEL (attach_widget);
|
|
|
|
label->popup_menu = NULL;
|
|
}
|
|
|
|
static void
|
|
popup_position_func (GtkMenu *menu,
|
|
gint *x,
|
|
gint *y,
|
|
gboolean *push_in,
|
|
gpointer user_data)
|
|
{
|
|
EelEditableLabel *label;
|
|
GtkWidget *widget;
|
|
GtkRequisition req;
|
|
|
|
label = EEL_EDITABLE_LABEL (user_data);
|
|
widget = GTK_WIDGET (label);
|
|
|
|
g_assert (GTK_WIDGET_REALIZED (label));
|
|
|
|
gdk_window_get_origin (widget->window, x, y);
|
|
|
|
/*gtk_widget_size_request (label->popup_menu, &req);*/
|
|
req = widget->requisition;
|
|
|
|
*x += widget->allocation.width / 2;
|
|
*y += widget->allocation.height;
|
|
|
|
*x = CLAMP (*x, 0, MAX (0, gdk_screen_width () - req.width));
|
|
*y = CLAMP (*y, 0, MAX (0, gdk_screen_height () - req.height));
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_toggle_overwrite (EelEditableLabel *label)
|
|
{
|
|
label->overwrite_mode = !label->overwrite_mode;
|
|
gtk_widget_queue_draw (GTK_WIDGET (label));
|
|
}
|
|
|
|
typedef struct
|
|
{
|
|
EelEditableLabel *label;
|
|
gint button;
|
|
guint time;
|
|
} PopupInfo;
|
|
|
|
static void
|
|
popup_targets_received (GtkClipboard *clipboard,
|
|
GtkSelectionData *data,
|
|
gpointer user_data)
|
|
{
|
|
GtkWidget *menuitem, *submenu;
|
|
gboolean have_selection;
|
|
gboolean clipboard_contains_text;
|
|
PopupInfo *info;
|
|
EelEditableLabel *label;
|
|
|
|
info = user_data;
|
|
label = info->label;
|
|
|
|
if (GTK_WIDGET_REALIZED (label))
|
|
{
|
|
if (label->popup_menu)
|
|
gtk_widget_destroy (label->popup_menu);
|
|
|
|
label->popup_menu = gtk_menu_new ();
|
|
|
|
gtk_menu_attach_to_widget (GTK_MENU (label->popup_menu),
|
|
GTK_WIDGET (label),
|
|
popup_menu_detach);
|
|
|
|
have_selection =
|
|
label->selection_anchor != label->selection_end;
|
|
|
|
clipboard_contains_text = gtk_selection_data_targets_include_text (data);
|
|
|
|
append_action_signal (label, label->popup_menu, GTK_STOCK_CUT, "cut_clipboard",
|
|
have_selection);
|
|
append_action_signal (label, label->popup_menu, GTK_STOCK_COPY, "copy_clipboard",
|
|
have_selection);
|
|
append_action_signal (label, label->popup_menu, GTK_STOCK_PASTE, "paste_clipboard",
|
|
clipboard_contains_text);
|
|
|
|
menuitem = gtk_menu_item_new_with_label (_("Select All"));
|
|
g_signal_connect_object (GTK_OBJECT (menuitem), "activate",
|
|
GTK_SIGNAL_FUNC (eel_editable_label_select_all), label,
|
|
G_CONNECT_SWAPPED);
|
|
gtk_widget_show (menuitem);
|
|
gtk_menu_shell_append (GTK_MENU_SHELL (label->popup_menu), menuitem);
|
|
|
|
menuitem = gtk_separator_menu_item_new ();
|
|
gtk_widget_show (menuitem);
|
|
gtk_menu_shell_append (GTK_MENU_SHELL (label->popup_menu), menuitem);
|
|
|
|
menuitem = gtk_menu_item_new_with_label (_("Input Methods"));
|
|
gtk_widget_show (menuitem);
|
|
submenu = gtk_menu_new ();
|
|
gtk_menu_item_set_submenu (GTK_MENU_ITEM (menuitem), submenu);
|
|
|
|
gtk_menu_shell_append (GTK_MENU_SHELL (label->popup_menu), menuitem);
|
|
|
|
gtk_im_multicontext_append_menuitems (GTK_IM_MULTICONTEXT (label->im_context),
|
|
GTK_MENU_SHELL (submenu));
|
|
|
|
g_signal_emit (GTK_OBJECT (label),
|
|
signals[POPULATE_POPUP], 0,
|
|
label->popup_menu);
|
|
|
|
if (info->button)
|
|
gtk_menu_popup (GTK_MENU (label->popup_menu), NULL, NULL,
|
|
NULL, NULL,
|
|
info->button, info->time);
|
|
else
|
|
{
|
|
gtk_menu_popup (GTK_MENU (label->popup_menu), NULL, NULL,
|
|
popup_position_func, label,
|
|
info->button, info->time);
|
|
gtk_menu_shell_select_first (GTK_MENU_SHELL (label->popup_menu), FALSE);
|
|
}
|
|
}
|
|
|
|
g_object_unref (label);
|
|
g_free (info);
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_do_popup (EelEditableLabel *label,
|
|
GdkEventButton *event)
|
|
{
|
|
PopupInfo *info = g_new (PopupInfo, 1);
|
|
|
|
/* In order to know what entries we should make sensitive, we
|
|
* ask for the current targets of the clipboard, and when
|
|
* we get them, then we actually pop up the menu.
|
|
*/
|
|
info->label = g_object_ref (label);
|
|
|
|
if (event)
|
|
{
|
|
info->button = event->button;
|
|
info->time = event->time;
|
|
}
|
|
else
|
|
{
|
|
info->button = 0;
|
|
info->time = gtk_get_current_event_time ();
|
|
}
|
|
|
|
gtk_clipboard_request_contents (gtk_widget_get_clipboard (GTK_WIDGET (label), GDK_SELECTION_CLIPBOARD),
|
|
gdk_atom_intern ("TARGETS", FALSE),
|
|
popup_targets_received,
|
|
info);
|
|
}
|
|
|
|
/************ Editable implementation ****************/
|
|
|
|
static void
|
|
editable_insert_text_emit (GtkEditable *editable,
|
|
const gchar *new_text,
|
|
gint new_text_length,
|
|
gint *position)
|
|
{
|
|
EelEditableLabel *label = EEL_EDITABLE_LABEL (editable);
|
|
gchar buf[64];
|
|
gchar *text;
|
|
int text_length;
|
|
|
|
text_length = g_utf8_strlen (label->text, -1);
|
|
|
|
if (*position < 0 || *position > text_length)
|
|
*position = text_length;
|
|
|
|
g_object_ref (G_OBJECT (editable));
|
|
|
|
if (new_text_length <= 63)
|
|
text = buf;
|
|
else
|
|
text = g_new (gchar, new_text_length + 1);
|
|
|
|
text[new_text_length] = '\0';
|
|
strncpy (text, new_text, new_text_length);
|
|
|
|
g_signal_emit_by_name (editable, "insert_text", text, new_text_length, position);
|
|
|
|
if (new_text_length > 63)
|
|
g_free (text);
|
|
|
|
g_object_unref (G_OBJECT (editable));
|
|
}
|
|
|
|
static void
|
|
editable_delete_text_emit (GtkEditable *editable,
|
|
gint start_pos,
|
|
gint end_pos)
|
|
{
|
|
EelEditableLabel *label = EEL_EDITABLE_LABEL (editable);
|
|
int text_length;
|
|
|
|
text_length = g_utf8_strlen (label->text, -1);
|
|
|
|
if (end_pos < 0 || end_pos > text_length)
|
|
end_pos = text_length;
|
|
if (start_pos < 0)
|
|
start_pos = 0;
|
|
if (start_pos > end_pos)
|
|
start_pos = end_pos;
|
|
|
|
g_object_ref (G_OBJECT (editable));
|
|
|
|
g_signal_emit_by_name (editable, "delete_text", start_pos, end_pos);
|
|
|
|
g_object_unref (G_OBJECT (editable));
|
|
}
|
|
|
|
static void
|
|
editable_insert_text (GtkEditable *editable,
|
|
const gchar *new_text,
|
|
gint new_text_length,
|
|
gint *position)
|
|
{
|
|
EelEditableLabel *label = EEL_EDITABLE_LABEL (editable);
|
|
gint index;
|
|
|
|
if (new_text_length < 0)
|
|
new_text_length = strlen (new_text);
|
|
|
|
index = g_utf8_offset_to_pointer (label->text, *position) - label->text;
|
|
|
|
eel_editable_label_insert_text (label,
|
|
new_text,
|
|
new_text_length,
|
|
&index);
|
|
|
|
*position = g_utf8_pointer_to_offset (label->text, label->text + index);
|
|
}
|
|
|
|
static void
|
|
editable_delete_text (GtkEditable *editable,
|
|
gint start_pos,
|
|
gint end_pos)
|
|
{
|
|
EelEditableLabel *label = EEL_EDITABLE_LABEL (editable);
|
|
int text_length;
|
|
gint start_index, end_index;
|
|
|
|
text_length = g_utf8_strlen (label->text, -1);
|
|
|
|
if (end_pos < 0 || end_pos > text_length)
|
|
end_pos = text_length;
|
|
if (start_pos < 0)
|
|
start_pos = 0;
|
|
if (start_pos > end_pos)
|
|
start_pos = end_pos;
|
|
|
|
start_index = g_utf8_offset_to_pointer (label->text, start_pos) - label->text;
|
|
end_index = g_utf8_offset_to_pointer (label->text, end_pos) - label->text;
|
|
|
|
eel_editable_label_delete_text (label, start_index, end_index);
|
|
}
|
|
|
|
static gchar *
|
|
editable_get_chars (GtkEditable *editable,
|
|
gint start_pos,
|
|
gint end_pos)
|
|
{
|
|
EelEditableLabel *label = EEL_EDITABLE_LABEL (editable);
|
|
int text_length;
|
|
gint start_index, end_index;
|
|
|
|
text_length = g_utf8_strlen (label->text, -1);
|
|
|
|
if (end_pos < 0 || end_pos > text_length)
|
|
end_pos = text_length;
|
|
if (start_pos < 0)
|
|
start_pos = 0;
|
|
if (start_pos > end_pos)
|
|
start_pos = end_pos;
|
|
|
|
start_index = g_utf8_offset_to_pointer (label->text, start_pos) - label->text;
|
|
end_index = g_utf8_offset_to_pointer (label->text, end_pos) - label->text;
|
|
|
|
return g_strndup (label->text + start_index, end_index - start_index);
|
|
}
|
|
|
|
static void
|
|
editable_set_selection_bounds (GtkEditable *editable,
|
|
gint start,
|
|
gint end)
|
|
{
|
|
EelEditableLabel *label = EEL_EDITABLE_LABEL (editable);
|
|
int text_length;
|
|
gint start_index, end_index;
|
|
|
|
text_length = g_utf8_strlen (label->text, -1);
|
|
|
|
if (end < 0 || end > text_length)
|
|
end = text_length;
|
|
if (start < 0)
|
|
start = text_length;
|
|
if (start > text_length)
|
|
start = text_length;
|
|
|
|
eel_editable_label_reset_im_context (label);
|
|
|
|
start_index = g_utf8_offset_to_pointer (label->text, start) - label->text;
|
|
end_index = g_utf8_offset_to_pointer (label->text, end) - label->text;
|
|
|
|
eel_editable_label_select_region_index (label, start_index, end_index);
|
|
}
|
|
|
|
static gboolean
|
|
editable_get_selection_bounds (GtkEditable *editable,
|
|
gint *start,
|
|
gint *end)
|
|
{
|
|
EelEditableLabel *label = EEL_EDITABLE_LABEL (editable);
|
|
|
|
*start = g_utf8_pointer_to_offset (label->text, label->text + label->selection_anchor);
|
|
*end = g_utf8_pointer_to_offset (label->text, label->text + label->selection_end);
|
|
|
|
return (label->selection_anchor != label->selection_end);
|
|
}
|
|
|
|
static void
|
|
editable_real_set_position (GtkEditable *editable,
|
|
gint position)
|
|
{
|
|
EelEditableLabel *label = EEL_EDITABLE_LABEL (editable);
|
|
int text_length;
|
|
int index;
|
|
|
|
text_length = g_utf8_strlen (label->text, -1);
|
|
|
|
if (position < 0 || position > text_length)
|
|
position = text_length;
|
|
|
|
index = g_utf8_offset_to_pointer (label->text, position) - label->text;
|
|
|
|
if (index != label->selection_anchor ||
|
|
index != label->selection_end)
|
|
{
|
|
eel_editable_label_select_region_index (label, index, index);
|
|
}
|
|
}
|
|
|
|
static gint
|
|
editable_get_position (GtkEditable *editable)
|
|
{
|
|
EelEditableLabel *label = EEL_EDITABLE_LABEL (editable);
|
|
|
|
return g_utf8_pointer_to_offset (label->text, label->text + label->selection_anchor);
|
|
}
|
|
|
|
|
|
static AtkObjectClass *a11y_parent_class = NULL;
|
|
|
|
static const char* eel_editable_label_accessible_data = "eel-editable-label-accessible-data";
|
|
|
|
/************ Accessible implementation ****************/
|
|
|
|
typedef struct {
|
|
GailTextUtil *textutil;
|
|
gint selection_anchor;
|
|
gint selection_end;
|
|
gchar *signal_name;
|
|
gint position;
|
|
gint length;
|
|
} EelEditableLabelAccessiblePrivate;
|
|
|
|
typedef struct
|
|
{
|
|
EelEditableLabel* label;
|
|
gint position;
|
|
} EelEditableLabelAccessiblePaste;
|
|
|
|
|
|
static gchar*
|
|
eel_editable_label_accessible_get_text (AtkText *text,
|
|
gint start_pos,
|
|
gint end_pos)
|
|
{
|
|
GtkWidget *widget;
|
|
EelEditableLabelAccessiblePrivate *priv;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return NULL;
|
|
|
|
priv = g_object_get_data (G_OBJECT (text), eel_editable_label_accessible_data);
|
|
return gail_text_util_get_substring (priv->textutil, start_pos, end_pos);
|
|
}
|
|
|
|
static gunichar
|
|
eel_editable_label_accessible_get_character_at_offset (AtkText *text,
|
|
gint offset)
|
|
{
|
|
GtkWidget *widget;
|
|
EelEditableLabelAccessiblePrivate *priv;
|
|
gchar *string;
|
|
gchar *index;
|
|
gunichar unichar;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return '\0';
|
|
|
|
priv = g_object_get_data (G_OBJECT (text), eel_editable_label_accessible_data);
|
|
string = gail_text_util_get_substring (priv->textutil, 0, -1);
|
|
if (offset >= g_utf8_strlen (string, -1))
|
|
{
|
|
unichar = '\0';
|
|
}
|
|
else
|
|
{
|
|
index = g_utf8_offset_to_pointer (string, offset);
|
|
|
|
unichar = g_utf8_get_char(index);
|
|
}
|
|
|
|
g_free(string);
|
|
return unichar;
|
|
}
|
|
|
|
static gchar*
|
|
eel_editable_label_accessible_get_text_before_offset (AtkText *text,
|
|
gint offset,
|
|
AtkTextBoundary boundary_type,
|
|
gint *start_offset,
|
|
gint *end_offset)
|
|
{
|
|
GtkWidget *widget;
|
|
EelEditableLabel *label;
|
|
EelEditableLabelAccessiblePrivate *priv;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return NULL;
|
|
|
|
label = EEL_EDITABLE_LABEL (widget);
|
|
priv = g_object_get_data (G_OBJECT (text), eel_editable_label_accessible_data);
|
|
|
|
return gail_text_util_get_text (priv->textutil,
|
|
eel_editable_label_get_layout (label),
|
|
GAIL_BEFORE_OFFSET,
|
|
boundary_type, offset,
|
|
start_offset, end_offset);
|
|
}
|
|
|
|
static gchar*
|
|
eel_editable_label_accessible_get_text_at_offset (AtkText *text,
|
|
gint offset,
|
|
AtkTextBoundary boundary_type,
|
|
gint *start_offset,
|
|
gint *end_offset)
|
|
{
|
|
GtkWidget *widget;
|
|
EelEditableLabel *label;
|
|
EelEditableLabelAccessiblePrivate *priv;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return NULL;
|
|
|
|
|
|
label = EEL_EDITABLE_LABEL (widget);
|
|
priv = g_object_get_data (G_OBJECT (text), eel_editable_label_accessible_data);
|
|
return gail_text_util_get_text (priv->textutil,
|
|
eel_editable_label_get_layout (label),
|
|
GAIL_AT_OFFSET,
|
|
boundary_type, offset,
|
|
start_offset, end_offset);
|
|
}
|
|
|
|
static gchar*
|
|
eel_editable_label_accessible_get_text_after_offset (AtkText *text,
|
|
gint offset,
|
|
AtkTextBoundary boundary_type,
|
|
gint *start_offset,
|
|
gint *end_offset)
|
|
{
|
|
GtkWidget *widget;
|
|
EelEditableLabel *label;
|
|
EelEditableLabelAccessiblePrivate *priv;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return NULL;
|
|
|
|
label = EEL_EDITABLE_LABEL (widget);
|
|
priv = g_object_get_data (G_OBJECT (text), eel_editable_label_accessible_data);
|
|
return gail_text_util_get_text (priv->textutil,
|
|
eel_editable_label_get_layout (label),
|
|
GAIL_AFTER_OFFSET,
|
|
boundary_type, offset,
|
|
start_offset, end_offset);
|
|
}
|
|
|
|
static gint
|
|
eel_editable_label_accessible_get_caret_offset (AtkText *text)
|
|
{
|
|
GtkWidget *widget;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return 0;
|
|
|
|
return gtk_editable_get_position (GTK_EDITABLE (widget));
|
|
}
|
|
|
|
static gboolean
|
|
eel_editable_label_accessible_set_caret_offset (AtkText *text, gint offset)
|
|
{
|
|
GtkWidget *widget;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return FALSE;
|
|
|
|
gtk_editable_set_position (GTK_EDITABLE (widget), offset);
|
|
return TRUE;
|
|
}
|
|
|
|
static gint
|
|
eel_editable_label_accessible_get_character_count (AtkText *text)
|
|
{
|
|
GtkWidget *widget;
|
|
EelEditableLabel *label;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return 0;
|
|
|
|
label = EEL_EDITABLE_LABEL (widget);
|
|
return g_utf8_strlen (eel_editable_label_get_text (label), -1);
|
|
}
|
|
|
|
static gint
|
|
eel_editable_label_accessible_get_n_selections (AtkText *text)
|
|
{
|
|
GtkWidget *widget;
|
|
EelEditableLabel *label;
|
|
gint select_start, select_end;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return -1;
|
|
|
|
label = EEL_EDITABLE_LABEL (widget);
|
|
gtk_editable_get_selection_bounds (GTK_EDITABLE (label), &select_start,
|
|
&select_end);
|
|
|
|
if (select_start != select_end)
|
|
return 1;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
static gchar*
|
|
eel_editable_label_accessible_get_selection (AtkText *text,
|
|
gint selection_num,
|
|
gint *start_pos,
|
|
gint *end_pos)
|
|
{
|
|
GtkWidget *widget;
|
|
EelEditableLabel *label;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return NULL;
|
|
|
|
/* Only let the user get the selection if one is set, and if the
|
|
* selection_num is 0.
|
|
*/
|
|
if (selection_num != 0)
|
|
return NULL;
|
|
|
|
label = EEL_EDITABLE_LABEL (widget);
|
|
gtk_editable_get_selection_bounds (GTK_EDITABLE (label), start_pos, end_pos);
|
|
|
|
if (*start_pos != *end_pos)
|
|
return gtk_editable_get_chars (GTK_EDITABLE (label), *start_pos, *end_pos);
|
|
else
|
|
return NULL;
|
|
}
|
|
|
|
static gboolean
|
|
eel_editable_label_accessible_add_selection (AtkText *text,
|
|
gint start_pos,
|
|
gint end_pos)
|
|
{
|
|
GtkWidget *widget;
|
|
EelEditableLabel *label;
|
|
gint select_start, select_end;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return FALSE;
|
|
|
|
label = EEL_EDITABLE_LABEL (widget);
|
|
gtk_editable_get_selection_bounds (GTK_EDITABLE (label), &select_start,
|
|
&select_end);
|
|
|
|
/* If there is already a selection, then don't allow another to be added,
|
|
* since EelEditableLabel only supports one selected region.
|
|
*/
|
|
if (select_start == select_end)
|
|
{
|
|
gtk_editable_select_region (GTK_EDITABLE (label), start_pos, end_pos);
|
|
return TRUE;
|
|
}
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
eel_editable_label_accessible_remove_selection (AtkText *text,
|
|
gint selection_num)
|
|
{
|
|
GtkWidget *widget;
|
|
EelEditableLabel *label;
|
|
gint select_start, select_end, caret_pos;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return FALSE;
|
|
|
|
if (selection_num != 0)
|
|
return FALSE;
|
|
|
|
label = EEL_EDITABLE_LABEL (widget);
|
|
gtk_editable_get_selection_bounds (GTK_EDITABLE (label), &select_start,
|
|
&select_end);
|
|
|
|
if (select_start != select_end)
|
|
{
|
|
/* Setting the start & end of the selected region to the caret position
|
|
* turns off the selection.
|
|
*/
|
|
caret_pos = gtk_editable_get_position (GTK_EDITABLE (label));
|
|
gtk_editable_select_region (GTK_EDITABLE (label), caret_pos, caret_pos);
|
|
return TRUE;
|
|
}
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
static gboolean
|
|
eel_editable_label_accessible_set_selection (AtkText *text,
|
|
gint selection_num,
|
|
gint start_pos,
|
|
gint end_pos)
|
|
{
|
|
GtkWidget *widget;
|
|
EelEditableLabel *label;
|
|
gint select_start, select_end;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return FALSE;
|
|
|
|
/* Only let the user move the selection if one is set, and if the
|
|
* selection_num is 0
|
|
*/
|
|
if (selection_num != 0)
|
|
return FALSE;
|
|
|
|
label = EEL_EDITABLE_LABEL (widget);
|
|
gtk_editable_get_selection_bounds (GTK_EDITABLE (label), &select_start,
|
|
&select_end);
|
|
|
|
if (select_start != select_end)
|
|
{
|
|
gtk_editable_select_region (GTK_EDITABLE (label), start_pos, end_pos);
|
|
return TRUE;
|
|
}
|
|
else
|
|
return FALSE;
|
|
}
|
|
|
|
static AtkAttributeSet*
|
|
eel_editable_label_accessible_get_run_attributes (AtkText *text,
|
|
gint offset,
|
|
gint *start_offset,
|
|
gint *end_offset)
|
|
{
|
|
GtkWidget *widget;
|
|
EelEditableLabel *label;
|
|
AtkAttributeSet *at_set = NULL;
|
|
GtkTextDirection dir;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return NULL;
|
|
|
|
label = EEL_EDITABLE_LABEL (widget);
|
|
|
|
dir = gtk_widget_get_direction (widget);
|
|
if (dir == GTK_TEXT_DIR_RTL)
|
|
{
|
|
at_set = gail_misc_add_attribute (at_set,
|
|
ATK_TEXT_ATTR_DIRECTION,
|
|
g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_DIRECTION, dir)));
|
|
}
|
|
|
|
at_set = gail_misc_layout_get_run_attributes (at_set,
|
|
eel_editable_label_get_layout (label),
|
|
label->text,
|
|
offset,
|
|
start_offset,
|
|
end_offset);
|
|
return at_set;
|
|
}
|
|
|
|
static AtkAttributeSet*
|
|
eel_editable_label_accessible_get_default_attributes (AtkText *text)
|
|
{
|
|
GtkWidget *widget;
|
|
EelEditableLabel *label;
|
|
AtkAttributeSet *at_set = NULL;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return NULL;
|
|
|
|
label = EEL_EDITABLE_LABEL (widget);
|
|
|
|
at_set = gail_misc_get_default_attributes (at_set,
|
|
eel_editable_label_get_layout (label),
|
|
widget);
|
|
return at_set;
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_accessible_get_character_extents (AtkText *text,
|
|
gint offset,
|
|
gint *x,
|
|
gint *y,
|
|
gint *width,
|
|
gint *height,
|
|
AtkCoordType coords)
|
|
{
|
|
GtkWidget *widget;
|
|
EelEditableLabel *label;
|
|
PangoRectangle char_rect;
|
|
gint index, cursor_index, x_layout, y_layout;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return;
|
|
|
|
label = EEL_EDITABLE_LABEL (widget);
|
|
eel_editable_label_get_layout_offsets (label, &x_layout, &y_layout);
|
|
index = g_utf8_offset_to_pointer (label->text, offset) - label->text;
|
|
cursor_index = label->selection_anchor;
|
|
if (index > cursor_index)
|
|
index += label->preedit_length;
|
|
pango_layout_index_to_pos (eel_editable_label_get_layout(label), index, &char_rect);
|
|
|
|
gail_misc_get_extents_from_pango_rectangle (widget, &char_rect,
|
|
x_layout, y_layout, x, y, width, height, coords);
|
|
}
|
|
|
|
static gint
|
|
eel_editable_label_accessible_get_offset_at_point (AtkText *text,
|
|
gint x,
|
|
gint y,
|
|
AtkCoordType coords)
|
|
{
|
|
GtkWidget *widget;
|
|
EelEditableLabel *label;
|
|
gint index, cursor_index, x_layout, y_layout;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return -1;
|
|
|
|
label = EEL_EDITABLE_LABEL (widget);
|
|
|
|
eel_editable_label_get_layout_offsets (label, &x_layout, &y_layout);
|
|
|
|
index = gail_misc_get_index_at_point_in_layout (widget,
|
|
eel_editable_label_get_layout(label), x_layout, y_layout, x, y, coords);
|
|
if (index == -1)
|
|
{
|
|
if (coords == ATK_XY_SCREEN || coords == ATK_XY_WINDOW)
|
|
return g_utf8_strlen (label->text, -1);
|
|
|
|
return index;
|
|
}
|
|
else
|
|
{
|
|
cursor_index = label->selection_anchor;
|
|
if (index >= cursor_index && label->preedit_length)
|
|
{
|
|
if (index >= cursor_index + label->preedit_length)
|
|
index -= label->preedit_length;
|
|
else
|
|
index = cursor_index;
|
|
}
|
|
return g_utf8_pointer_to_offset (label->text, label->text + index);
|
|
}
|
|
}
|
|
|
|
static void
|
|
atk_text_interface_init (AtkTextIface *iface)
|
|
{
|
|
g_assert (iface != NULL);
|
|
|
|
iface->get_text = eel_editable_label_accessible_get_text;
|
|
iface->get_character_at_offset = eel_editable_label_accessible_get_character_at_offset;
|
|
iface->get_text_before_offset = eel_editable_label_accessible_get_text_before_offset;
|
|
iface->get_text_at_offset = eel_editable_label_accessible_get_text_at_offset;
|
|
iface->get_text_after_offset = eel_editable_label_accessible_get_text_after_offset;
|
|
iface->get_caret_offset = eel_editable_label_accessible_get_caret_offset;
|
|
iface->set_caret_offset = eel_editable_label_accessible_set_caret_offset;
|
|
iface->get_character_count = eel_editable_label_accessible_get_character_count;
|
|
iface->get_n_selections = eel_editable_label_accessible_get_n_selections;
|
|
iface->get_selection = eel_editable_label_accessible_get_selection;
|
|
iface->add_selection = eel_editable_label_accessible_add_selection;
|
|
iface->remove_selection = eel_editable_label_accessible_remove_selection;
|
|
iface->set_selection = eel_editable_label_accessible_set_selection;
|
|
iface->get_run_attributes = eel_editable_label_accessible_get_run_attributes;
|
|
iface->get_default_attributes = eel_editable_label_accessible_get_default_attributes;
|
|
iface->get_character_extents = eel_editable_label_accessible_get_character_extents;
|
|
iface->get_offset_at_point = eel_editable_label_accessible_get_offset_at_point;
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_accessible_set_text_contents (AtkEditableText *text,
|
|
const gchar *string)
|
|
{
|
|
GtkWidget *widget;
|
|
EelEditableLabel *label;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return;
|
|
|
|
label = EEL_EDITABLE_LABEL (widget);
|
|
|
|
eel_editable_label_set_text (label, string);
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_accessible_insert_text (AtkEditableText *text,
|
|
const gchar *string,
|
|
gint length,
|
|
gint *position)
|
|
{
|
|
GtkWidget *widget;
|
|
EelEditableLabel *label;
|
|
GtkEditable *editable;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return;
|
|
|
|
label = EEL_EDITABLE_LABEL (widget);
|
|
editable = GTK_EDITABLE (label);
|
|
|
|
gtk_editable_insert_text (editable, string, length, position);
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_accessible_copy_text (AtkEditableText *text,
|
|
gint start_pos,
|
|
gint end_pos)
|
|
{
|
|
GtkWidget *widget;
|
|
EelEditableLabel *label;
|
|
GtkEditable *editable;
|
|
gchar *str;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return;
|
|
|
|
label = EEL_EDITABLE_LABEL (widget);
|
|
editable = GTK_EDITABLE (label);
|
|
str = gtk_editable_get_chars (editable, start_pos, end_pos);
|
|
gtk_clipboard_set_text (gtk_clipboard_get (GDK_NONE), str, -1);
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_accessible_cut_text (AtkEditableText *text,
|
|
gint start_pos,
|
|
gint end_pos)
|
|
{
|
|
GtkWidget *widget;
|
|
EelEditableLabel *label;
|
|
GtkEditable *editable;
|
|
gchar *str;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return;
|
|
|
|
label = EEL_EDITABLE_LABEL (widget);
|
|
editable = GTK_EDITABLE (label);
|
|
str = gtk_editable_get_chars (editable, start_pos, end_pos);
|
|
gtk_clipboard_set_text (gtk_clipboard_get (GDK_NONE), str, -1);
|
|
gtk_editable_delete_text (editable, start_pos, end_pos);
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_accessible_delete_text (AtkEditableText *text,
|
|
gint start_pos,
|
|
gint end_pos)
|
|
{
|
|
GtkWidget *widget;
|
|
EelEditableLabel *label;
|
|
GtkEditable *editable;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return;
|
|
|
|
label = EEL_EDITABLE_LABEL (widget);
|
|
editable = GTK_EDITABLE (label);
|
|
|
|
gtk_editable_delete_text (editable, start_pos, end_pos);
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_accessible_paste_received (GtkClipboard *clipboard,
|
|
const gchar *text,
|
|
gpointer data)
|
|
{
|
|
EelEditableLabelAccessiblePaste* paste_struct = (EelEditableLabelAccessiblePaste *)data;
|
|
|
|
if (text)
|
|
gtk_editable_insert_text (GTK_EDITABLE (paste_struct->label), text, -1,
|
|
&(paste_struct->position));
|
|
|
|
g_object_unref (paste_struct->label);
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_accessible_paste_text (AtkEditableText *text,
|
|
gint position)
|
|
{
|
|
GtkWidget *widget;
|
|
GtkEditable *editable;
|
|
EelEditableLabelAccessiblePaste paste_struct;
|
|
|
|
widget = GTK_ACCESSIBLE (text)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return;
|
|
|
|
editable = GTK_EDITABLE (widget);
|
|
if (!gtk_editable_get_editable (editable))
|
|
return;
|
|
paste_struct.label = EEL_EDITABLE_LABEL (widget);
|
|
paste_struct.position = position;
|
|
|
|
g_object_ref (paste_struct.label);
|
|
gtk_clipboard_request_text (gtk_clipboard_get (GDK_NONE),
|
|
eel_editable_label_accessible_paste_received, &paste_struct);
|
|
}
|
|
|
|
static void
|
|
atk_editable_text_interface_init (AtkEditableTextIface *iface)
|
|
{
|
|
g_assert (iface != NULL);
|
|
|
|
iface->set_text_contents = eel_editable_label_accessible_set_text_contents;
|
|
iface->insert_text = eel_editable_label_accessible_insert_text;
|
|
iface->copy_text = eel_editable_label_accessible_copy_text;
|
|
iface->cut_text = eel_editable_label_accessible_cut_text;
|
|
iface->delete_text = eel_editable_label_accessible_delete_text;
|
|
iface->paste_text = eel_editable_label_accessible_paste_text;
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_accessible_notify_insert (AtkObject *accessible)
|
|
{
|
|
EelEditableLabelAccessiblePrivate *priv;
|
|
|
|
priv = g_object_get_data (G_OBJECT (accessible), eel_editable_label_accessible_data);
|
|
if (priv->signal_name)
|
|
{
|
|
g_signal_emit_by_name (accessible,
|
|
priv->signal_name,
|
|
priv->position,
|
|
priv->length);
|
|
priv->signal_name = NULL;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
eel_editable_label_accessible_idle_notify_insert (gpointer data)
|
|
{
|
|
eel_editable_label_accessible_notify_insert (data);
|
|
return FALSE;
|
|
}
|
|
|
|
/* Note arg1 returns the character at the start of the insert.
|
|
* arg2 returns the number of characters inserted.
|
|
*/
|
|
static void
|
|
eel_editable_label_accessible_insert_text_cb (EelEditableLabel *label,
|
|
gchar *arg1,
|
|
gint arg2,
|
|
gpointer arg3)
|
|
{
|
|
AtkObject *accessible;
|
|
EelEditableLabelAccessiblePrivate *priv;
|
|
gint *position = (gint *) arg3;
|
|
|
|
accessible = gtk_widget_get_accessible (GTK_WIDGET (label));
|
|
priv = g_object_get_data (G_OBJECT (accessible), eel_editable_label_accessible_data);
|
|
if (!priv->signal_name)
|
|
{
|
|
priv->signal_name = "text_changed::insert";
|
|
priv->position = *position;
|
|
priv->length = arg2;
|
|
}
|
|
/*
|
|
* The signal will be emitted when the cursor position is updated.
|
|
* or in an idle handler if it not updated.
|
|
*/
|
|
g_idle_add (eel_editable_label_accessible_idle_notify_insert, accessible);
|
|
}
|
|
|
|
/* Note arg1 returns the start of the delete range, arg2 returns the
|
|
* end of the delete range if multiple characters are deleted.
|
|
*/
|
|
static void
|
|
eel_editable_label_accessible_delete_text_cb (EelEditableLabel *label,
|
|
gint arg1,
|
|
gint arg2)
|
|
{
|
|
AtkObject *accessible;
|
|
|
|
accessible = gtk_widget_get_accessible (GTK_WIDGET (label));
|
|
|
|
/*
|
|
* Zero length text deleted so ignore
|
|
*/
|
|
if (arg2 - arg1 == 0)
|
|
return;
|
|
|
|
g_signal_emit_by_name (accessible, "text_changed::delete", arg1, arg2 - arg1);
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_accessible_changed_cb (EelEditableLabel *label)
|
|
{
|
|
AtkObject *accessible;
|
|
EelEditableLabelAccessiblePrivate *priv;
|
|
|
|
accessible = gtk_widget_get_accessible (GTK_WIDGET (label));
|
|
priv = g_object_get_data (G_OBJECT (accessible), eel_editable_label_accessible_data);
|
|
gail_text_util_text_setup (priv->textutil, eel_editable_label_get_text (label));
|
|
}
|
|
|
|
static gboolean
|
|
check_for_selection_change (AtkObject *accessible,
|
|
GtkWidget *widget)
|
|
{
|
|
EelEditableLabelAccessiblePrivate *priv;
|
|
EelEditableLabel *label;
|
|
gboolean ret_val = FALSE;
|
|
|
|
priv = g_object_get_data (G_OBJECT (accessible), eel_editable_label_accessible_data);
|
|
label = EEL_EDITABLE_LABEL (widget);
|
|
|
|
if (label->selection_anchor != label->selection_end)
|
|
{
|
|
if (label->selection_anchor != priv->selection_anchor ||
|
|
label->selection_end != priv->selection_end)
|
|
/*
|
|
* This check is here as this function can be called
|
|
* for notification of selection_end and selection_anchor.
|
|
* The values of selection_anchor and selection_end may be the same
|
|
* for both notifications and we only want to generate one
|
|
* text_selection_changed signal.
|
|
*/
|
|
ret_val = TRUE;
|
|
}
|
|
else
|
|
{
|
|
/* We had a selection */
|
|
ret_val = (priv->selection_anchor != priv->selection_end);
|
|
}
|
|
priv->selection_anchor = label->selection_anchor;
|
|
priv->selection_end = label->selection_end;
|
|
|
|
return ret_val;
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_accessible_notify_gtk (GObject *obj,
|
|
GParamSpec *pspec)
|
|
{
|
|
GtkWidget *widget;
|
|
AtkObject *accessible;
|
|
EelEditableLabel *label;
|
|
|
|
widget = GTK_WIDGET (obj);
|
|
label = EEL_EDITABLE_LABEL (widget);
|
|
accessible = gtk_widget_get_accessible (widget);
|
|
|
|
if (strcmp (pspec->name, "cursor-position") == 0)
|
|
{
|
|
eel_editable_label_accessible_notify_insert (accessible);
|
|
if (check_for_selection_change (accessible, widget))
|
|
g_signal_emit_by_name (accessible, "text_selection_changed");
|
|
/*
|
|
* The label cursor position has moved so generate the signal.
|
|
*/
|
|
g_signal_emit_by_name (accessible, "text_caret_moved",
|
|
g_utf8_pointer_to_offset (label->text,
|
|
label->text + label->selection_anchor));
|
|
}
|
|
else if (strcmp (pspec->name, "selection-bound") == 0)
|
|
{
|
|
eel_editable_label_accessible_notify_insert (accessible);
|
|
|
|
if (check_for_selection_change (accessible, widget))
|
|
g_signal_emit_by_name (accessible, "text_selection_changed");
|
|
}
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_accessible_initialize (AtkObject *accessible,
|
|
gpointer widget)
|
|
{
|
|
EelEditableLabelAccessiblePrivate *priv;
|
|
EelEditableLabel *label;
|
|
|
|
a11y_parent_class->initialize (accessible, widget);
|
|
|
|
label = EEL_EDITABLE_LABEL (widget);
|
|
priv = g_new0 (EelEditableLabelAccessiblePrivate, 1);
|
|
priv->textutil = gail_text_util_new ();
|
|
gail_text_util_text_setup (priv->textutil, eel_editable_label_get_text (EEL_EDITABLE_LABEL (widget)));
|
|
priv->selection_anchor = label->selection_anchor;
|
|
priv->selection_end = label->selection_end;
|
|
g_object_set_data (G_OBJECT (accessible), eel_editable_label_accessible_data, priv);
|
|
g_signal_connect (widget, "insert-text",
|
|
G_CALLBACK (eel_editable_label_accessible_insert_text_cb), NULL);
|
|
g_signal_connect (widget, "delete-text",
|
|
G_CALLBACK (eel_editable_label_accessible_delete_text_cb), NULL);
|
|
g_signal_connect (widget, "changed",
|
|
G_CALLBACK (eel_editable_label_accessible_changed_cb), NULL);
|
|
|
|
g_signal_connect (widget,
|
|
"notify",
|
|
G_CALLBACK (eel_editable_label_accessible_notify_gtk),
|
|
NULL);
|
|
atk_object_set_role (accessible, ATK_ROLE_TEXT);
|
|
}
|
|
|
|
static G_CONST_RETURN gchar*
|
|
eel_editable_label_accessible_get_name (AtkObject *accessible)
|
|
{
|
|
if (accessible->name != NULL)
|
|
return accessible->name;
|
|
else
|
|
{
|
|
GtkWidget *widget;
|
|
|
|
widget = GTK_ACCESSIBLE (accessible)->widget;
|
|
if (widget == NULL)
|
|
/* State is defunct */
|
|
return NULL;
|
|
|
|
g_assert (EEL_IS_EDITABLE_LABEL (widget));
|
|
return eel_editable_label_get_text (EEL_EDITABLE_LABEL (widget));
|
|
}
|
|
}
|
|
|
|
static AtkStateSet*
|
|
eel_editable_label_accessible_ref_state_set (AtkObject *accessible)
|
|
{
|
|
AtkStateSet *state_set;
|
|
GtkWidget *widget;
|
|
|
|
state_set = a11y_parent_class->ref_state_set (accessible);
|
|
widget = GTK_ACCESSIBLE (accessible)->widget;
|
|
|
|
if (widget == NULL)
|
|
return state_set;
|
|
|
|
atk_state_set_add_state (state_set, ATK_STATE_EDITABLE);
|
|
atk_state_set_add_state (state_set, ATK_STATE_MULTI_LINE);
|
|
return state_set;
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_accessible_finalize (GObject *object)
|
|
{
|
|
EelEditableLabelAccessiblePrivate *priv;
|
|
|
|
priv = g_object_get_data (object, eel_editable_label_accessible_data);
|
|
g_object_unref (priv->textutil);
|
|
g_free (priv);
|
|
G_OBJECT_CLASS (a11y_parent_class)->finalize (object);
|
|
}
|
|
|
|
static void
|
|
eel_editable_label_accessible_class_init (AtkObjectClass *klass)
|
|
{
|
|
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
|
|
|
|
a11y_parent_class = g_type_class_peek_parent (klass);
|
|
|
|
klass->initialize = eel_editable_label_accessible_initialize;
|
|
klass->get_name = eel_editable_label_accessible_get_name;
|
|
klass->ref_state_set = eel_editable_label_accessible_ref_state_set;
|
|
gobject_class->finalize = eel_editable_label_accessible_finalize;
|
|
}
|
|
|
|
static AtkObject *
|
|
eel_editable_label_get_accessible (GtkWidget *widget)
|
|
{
|
|
static GType type = 0;
|
|
AtkObject *accessible;
|
|
|
|
if ((accessible = eel_accessibility_get_atk_object (widget)))
|
|
return accessible;
|
|
|
|
if (!type)
|
|
{
|
|
const GInterfaceInfo atk_editable_text_info =
|
|
{
|
|
(GInterfaceInitFunc) atk_editable_text_interface_init,
|
|
(GInterfaceFinalizeFunc) NULL,
|
|
NULL
|
|
};
|
|
const GInterfaceInfo atk_text_info =
|
|
{
|
|
(GInterfaceInitFunc) atk_text_interface_init,
|
|
(GInterfaceFinalizeFunc) NULL,
|
|
NULL
|
|
};
|
|
|
|
type = eel_accessibility_create_derived_type ("EelEditableLabelAccessible",
|
|
G_TYPE_FROM_INSTANCE (widget),
|
|
eel_editable_label_accessible_class_init);
|
|
|
|
if (!type)
|
|
return NULL;
|
|
|
|
g_type_add_interface_static (type, ATK_TYPE_EDITABLE_TEXT, &atk_editable_text_info);
|
|
g_type_add_interface_static (type, ATK_TYPE_TEXT, &atk_text_info);
|
|
}
|
|
|
|
accessible = g_object_new (type, NULL);
|
|
|
|
return eel_accessibility_set_atk_object_return (widget, accessible);
|
|
}
|
|
|