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nautilus/eel/eel-editable-label.c
Cosimo Cecchi 7063d9c216 make sure we take care about UTF-8/byte conversion when we move around the 
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
2009-01-28 01:41:07 +00:00

4411 lines
125 KiB
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/* GTK - The GIMP Toolkit
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include <config.h>
#include <math.h>
#include <string.h>
#include "eel-editable-label.h"
#include "eel-i18n.h"
#include "eel-marshal.h"
#include "eel-accessibility.h"
#include <libgail-util/gailmisc.h>
#include <pango/pango.h>
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
enum {
MOVE_CURSOR,
POPULATE_POPUP,
DELETE_FROM_CURSOR,
CUT_CLIPBOARD,
COPY_CLIPBOARD,
PASTE_CLIPBOARD,
TOGGLE_OVERWRITE,
LAST_SIGNAL
};
enum {
PROP_0,
PROP_TEXT,
PROP_JUSTIFY,
PROP_WRAP,
PROP_CURSOR_POSITION,
PROP_SELECTION_BOUND
};
static guint signals[LAST_SIGNAL] = { 0 };
static void eel_editable_label_editable_init (GtkEditableClass *iface);
static void eel_editable_label_class_init (EelEditableLabelClass *klass);
static void eel_editable_label_init (EelEditableLabel *label);
static void eel_editable_label_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void eel_editable_label_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void eel_editable_label_finalize (GObject *object);
static void eel_editable_label_size_request (GtkWidget *widget,
GtkRequisition *requisition);
static void eel_editable_label_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static void eel_editable_label_state_changed (GtkWidget *widget,
GtkStateType state);
static void eel_editable_label_style_set (GtkWidget *widget,
GtkStyle *previous_style);
static void eel_editable_label_direction_changed (GtkWidget *widget,
GtkTextDirection previous_dir);
static gint eel_editable_label_expose (GtkWidget *widget,
GdkEventExpose *event);
static void eel_editable_label_realize (GtkWidget *widget);
static void eel_editable_label_unrealize (GtkWidget *widget);
static void eel_editable_label_map (GtkWidget *widget);
static void eel_editable_label_unmap (GtkWidget *widget);
static gint eel_editable_label_button_press (GtkWidget *widget,
GdkEventButton *event);
static gint eel_editable_label_button_release (GtkWidget *widget,
GdkEventButton *event);
static gint eel_editable_label_motion (GtkWidget *widget,
GdkEventMotion *event);
static gint eel_editable_label_key_press (GtkWidget *widget,
GdkEventKey *event);
static gint eel_editable_label_key_release (GtkWidget *widget,
GdkEventKey *event);
static gint eel_editable_label_focus_in (GtkWidget *widget,
GdkEventFocus *event);
static gint eel_editable_label_focus_out (GtkWidget *widget,
GdkEventFocus *event);
static AtkObject *eel_editable_label_get_accessible (GtkWidget *widget);
static void eel_editable_label_commit_cb (GtkIMContext *context,
const gchar *str,
EelEditableLabel *label);
static void eel_editable_label_preedit_changed_cb (GtkIMContext *context,
EelEditableLabel *label);
static gboolean eel_editable_label_retrieve_surrounding_cb (GtkIMContext *context,
EelEditableLabel *label);
static gboolean eel_editable_label_delete_surrounding_cb (GtkIMContext *slave,
gint offset,
gint n_chars,
EelEditableLabel *label);
static void eel_editable_label_clear_layout (EelEditableLabel *label);
static void eel_editable_label_recompute (EelEditableLabel *label);
static void eel_editable_label_ensure_layout (EelEditableLabel *label,
gboolean include_preedit);
static void eel_editable_label_select_region_index (EelEditableLabel *label,
gint anchor_index,
gint end_index);
static gboolean eel_editable_label_focus (GtkWidget *widget,
GtkDirectionType direction);
static void eel_editable_label_move_cursor (EelEditableLabel *label,
GtkMovementStep step,
gint count,
gboolean extend_selection);
static void eel_editable_label_delete_from_cursor (EelEditableLabel *label,
GtkDeleteType type,
gint count);
static void eel_editable_label_copy_clipboard (EelEditableLabel *label);
static void eel_editable_label_cut_clipboard (EelEditableLabel *label);
static void eel_editable_label_paste (EelEditableLabel *label,
GdkAtom selection);
static void eel_editable_label_paste_clipboard (EelEditableLabel *label);
static void eel_editable_label_select_all (EelEditableLabel *label);
static void eel_editable_label_do_popup (EelEditableLabel *label,
GdkEventButton *event);
static void eel_editable_label_toggle_overwrite (EelEditableLabel *label);
static gint eel_editable_label_move_forward_word (EelEditableLabel *label,
gint start);
static gint eel_editable_label_move_backward_word (EelEditableLabel *label,
gint start);
static void eel_editable_label_reset_im_context (EelEditableLabel *label);
static void eel_editable_label_check_cursor_blink (EelEditableLabel *label);
static void eel_editable_label_pend_cursor_blink (EelEditableLabel *label);
/* Editable implementation: */
static void editable_insert_text_emit (GtkEditable *editable,
const gchar *new_text,
gint new_text_length,
gint *position);
static void editable_delete_text_emit (GtkEditable *editable,
gint start_pos,
gint end_pos);
static void editable_insert_text (GtkEditable *editable,
const gchar *new_text,
gint new_text_length,
gint *position);
static void editable_delete_text (GtkEditable *editable,
gint start_pos,
gint end_pos);
static gchar * editable_get_chars (GtkEditable *editable,
gint start_pos,
gint end_pos);
static void editable_set_selection_bounds (GtkEditable *editable,
gint start,
gint end);
static gboolean editable_get_selection_bounds (GtkEditable *editable,
gint *start,
gint *end);
static void editable_real_set_position (GtkEditable *editable,
gint position);
static gint editable_get_position (GtkEditable *editable);
static GdkGC * make_cursor_gc (GtkWidget *widget,
const gchar *property_name,
GdkColor *fallback);
static GtkMiscClass *parent_class = NULL;
GType
eel_editable_label_get_type (void)
{
static GType label_type = 0;
if (!label_type)
{
const GTypeInfo label_info =
{
sizeof (EelEditableLabelClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) eel_editable_label_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (EelEditableLabel),
32, /* n_preallocs */
(GInstanceInitFunc) eel_editable_label_init,
};
const GInterfaceInfo editable_info =
{
(GInterfaceInitFunc) eel_editable_label_editable_init, /* interface_init */
NULL, /* interface_finalize */
NULL /* interface_data */
};
label_type = g_type_register_static (GTK_TYPE_MISC, "EelEditableLabel", &label_info, 0);
g_type_add_interface_static (label_type,
GTK_TYPE_EDITABLE,
&editable_info);
}
return label_type;
}
static void
add_move_binding (GtkBindingSet *binding_set,
guint keyval,
guint modmask,
GtkMovementStep step,
gint count)
{
g_assert ((modmask & GDK_SHIFT_MASK) == 0);
gtk_binding_entry_add_signal (binding_set, keyval, modmask,
"move_cursor", 3,
G_TYPE_ENUM, step,
G_TYPE_INT, count,
G_TYPE_BOOLEAN, FALSE);
/* Selection-extending version */
gtk_binding_entry_add_signal (binding_set, keyval, modmask | GDK_SHIFT_MASK,
"move_cursor", 3,
G_TYPE_ENUM, step,
G_TYPE_INT, count,
G_TYPE_BOOLEAN, TRUE);
}
static void
eel_editable_label_class_init (EelEditableLabelClass *class)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (class);
GtkObjectClass *object_class = GTK_OBJECT_CLASS (class);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);
GtkBindingSet *binding_set;
parent_class = gtk_type_class (GTK_TYPE_MISC);
gobject_class->set_property = eel_editable_label_set_property;
gobject_class->get_property = eel_editable_label_get_property;
gobject_class->finalize = eel_editable_label_finalize;
widget_class->size_request = eel_editable_label_size_request;
widget_class->size_allocate = eel_editable_label_size_allocate;
widget_class->state_changed = eel_editable_label_state_changed;
widget_class->style_set = eel_editable_label_style_set;
widget_class->direction_changed = eel_editable_label_direction_changed;
widget_class->expose_event = eel_editable_label_expose;
widget_class->realize = eel_editable_label_realize;
widget_class->unrealize = eel_editable_label_unrealize;
widget_class->map = eel_editable_label_map;
widget_class->unmap = eel_editable_label_unmap;
widget_class->button_press_event = eel_editable_label_button_press;
widget_class->button_release_event = eel_editable_label_button_release;
widget_class->motion_notify_event = eel_editable_label_motion;
widget_class->focus = eel_editable_label_focus;
widget_class->key_press_event = eel_editable_label_key_press;
widget_class->key_release_event = eel_editable_label_key_release;
widget_class->focus_in_event = eel_editable_label_focus_in;
widget_class->focus_out_event = eel_editable_label_focus_out;
widget_class->get_accessible = eel_editable_label_get_accessible;
class->move_cursor = eel_editable_label_move_cursor;
class->delete_from_cursor = eel_editable_label_delete_from_cursor;
class->copy_clipboard = eel_editable_label_copy_clipboard;
class->cut_clipboard = eel_editable_label_cut_clipboard;
class->paste_clipboard = eel_editable_label_paste_clipboard;
class->toggle_overwrite = eel_editable_label_toggle_overwrite;
signals[MOVE_CURSOR] =
g_signal_new ("move_cursor",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (EelEditableLabelClass, move_cursor),
NULL, NULL,
eel_marshal_VOID__ENUM_INT_BOOLEAN,
G_TYPE_NONE, 3, GTK_TYPE_MOVEMENT_STEP, G_TYPE_INT, G_TYPE_BOOLEAN);
signals[COPY_CLIPBOARD] =
g_signal_new ("copy_clipboard",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (EelEditableLabelClass, copy_clipboard),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
signals[POPULATE_POPUP] =
g_signal_new ("populate_popup",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (EelEditableLabelClass, populate_popup),
NULL, NULL,
g_cclosure_marshal_VOID__OBJECT,
G_TYPE_NONE, 1, GTK_TYPE_MENU);
signals[DELETE_FROM_CURSOR] =
g_signal_new ("delete_from_cursor",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (EelEditableLabelClass, delete_from_cursor),
NULL, NULL,
eel_marshal_VOID__ENUM_INT,
G_TYPE_NONE, 2, GTK_TYPE_DELETE_TYPE, G_TYPE_INT);
signals[CUT_CLIPBOARD] =
g_signal_new ("cut_clipboard",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (EelEditableLabelClass, cut_clipboard),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
signals[PASTE_CLIPBOARD] =
g_signal_new ("paste_clipboard",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (EelEditableLabelClass, paste_clipboard),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
signals[TOGGLE_OVERWRITE] =
g_signal_new ("toggle_overwrite",
G_TYPE_FROM_CLASS (object_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (EelEditableLabelClass, toggle_overwrite),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
g_object_class_install_property (G_OBJECT_CLASS(object_class),
PROP_TEXT,
g_param_spec_string ("text",
_("Text"),
_("The text of the label."),
NULL,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_JUSTIFY,
g_param_spec_enum ("justify",
_("Justification"),
_("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."),
GTK_TYPE_JUSTIFICATION,
GTK_JUSTIFY_LEFT,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_WRAP,
g_param_spec_boolean ("wrap",
_("Line wrap"),
_("If set, wrap lines if the text becomes too wide."),
FALSE,
G_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_CURSOR_POSITION,
g_param_spec_int ("cursor_position",
_("Cursor Position"),
_("The current position of the insertion cursor in chars."),
0,
G_MAXINT,
0,
G_PARAM_READABLE));
g_object_class_install_property (gobject_class,
PROP_SELECTION_BOUND,
g_param_spec_int ("selection_bound",
_("Selection Bound"),
_("The position of the opposite end of the selection from the cursor in chars."),
0,
G_MAXINT,
0,
G_PARAM_READABLE));
/*
* Key bindings
*/
binding_set = gtk_binding_set_by_class (class);
/* Moving the insertion point */
add_move_binding (binding_set, GDK_Right, 0,
GTK_MOVEMENT_VISUAL_POSITIONS, 1);
add_move_binding (binding_set, GDK_Left, 0,
GTK_MOVEMENT_VISUAL_POSITIONS, -1);
add_move_binding (binding_set, GDK_KP_Right, 0,
GTK_MOVEMENT_VISUAL_POSITIONS, 1);
add_move_binding (binding_set, GDK_KP_Left, 0,
GTK_MOVEMENT_VISUAL_POSITIONS, -1);
add_move_binding (binding_set, GDK_f, GDK_CONTROL_MASK,
GTK_MOVEMENT_LOGICAL_POSITIONS, 1);
add_move_binding (binding_set, GDK_b, GDK_CONTROL_MASK,
GTK_MOVEMENT_LOGICAL_POSITIONS, -1);
add_move_binding (binding_set, GDK_Right, GDK_CONTROL_MASK,
GTK_MOVEMENT_WORDS, 1);
add_move_binding (binding_set, GDK_Left, GDK_CONTROL_MASK,
GTK_MOVEMENT_WORDS, -1);
add_move_binding (binding_set, GDK_KP_Right, GDK_CONTROL_MASK,
GTK_MOVEMENT_WORDS, 1);
add_move_binding (binding_set, GDK_KP_Left, GDK_CONTROL_MASK,
GTK_MOVEMENT_WORDS, -1);
add_move_binding (binding_set, GDK_a, GDK_CONTROL_MASK,
GTK_MOVEMENT_PARAGRAPH_ENDS, -1);
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);
}
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