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c1c876a963
2005-07-25 Michael Natterer <mitch@gimp.org> Some DND fixes / cleanup: * app/widgets/widgets-enums.h: renamed GIMP_DND_TYPE_TOOL to GIMP_DND_TYPE_TOOL_INFO. * app/widgets/gimpselectiondata.[ch]: s/tool/tool_info/g. Moved private functions to the end of the file. Include GIMP's PID in all GtkSelectionData strings which are used to pass around stuff by reference. For things which are referenced by name, also encode the object's address in the GtkSelectionData so having a brush called "Standard" or a named buffer called "Global Buffer" will work together with DND. * app/widgets/gimpdnd.[ch]: s/tool/tool_info/g. Renamed gimp_dnd_get_data_data() to gimp_dnd_get_object_data() since it's not limited to GimpData objects. Follow above selection data API changes. Cleanup. * libgimp/gimpbrushmenu.c * libgimp/gimpdrawablecombobox.c * libgimp/gimpfontselectbutton.c * libgimp/gimpgradientmenu.c * libgimp/gimpimagecombobox.c * libgimp/gimppalettemenu.c * libgimp/gimppatternmenu.c: follow GtkSelectionData format change and check the dropped things' PID against the return value of gimp_getpid().
634 lines
20 KiB
C
634 lines
20 KiB
C
/* LIBGIMP - The GIMP Library
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* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
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*
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* gimpbrushmenu.c
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* Copyright (C) 1998 Andy Thomas
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <string.h>
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#include "gimp.h"
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#include "gimpui.h"
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#include "libgimp-intl.h"
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#define BRUSH_SELECT_DATA_KEY "gimp-brush-select-data"
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#define CELL_SIZE 20
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typedef struct _BrushSelect BrushSelect;
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struct _BrushSelect
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{
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gchar *title;
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GimpRunBrushCallback callback;
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gpointer data;
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GtkWidget *preview;
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GtkWidget *button;
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GtkWidget *popup;
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gchar *brush_name; /* Local copy */
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gdouble opacity;
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gint spacing;
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GimpLayerModeEffects paint_mode;
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gint width;
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gint height;
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guchar *mask_data; /* local copy */
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const gchar *temp_brush_callback;
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};
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/* local function prototypes */
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static void gimp_brush_select_widget_callback (const gchar *name,
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gdouble opacity,
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gint spacing,
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GimpLayerModeEffects paint_mode,
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gint width,
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gint height,
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const guchar *mask_data,
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gboolean closing,
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gpointer data);
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static void gimp_brush_select_widget_clicked (GtkWidget *widget,
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BrushSelect *brush_sel);
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static void gimp_brush_select_widget_destroy (GtkWidget *widget,
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BrushSelect *brush_sel);
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static gboolean gimp_brush_select_preview_events (GtkWidget *widget,
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GdkEvent *event,
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BrushSelect *brush_sel);
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static void gimp_brush_select_preview_update (GtkWidget *preview,
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gint brush_width,
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gint brush_height,
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const guchar *mask_data);
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static void gimp_brush_select_preview_resize (BrushSelect *brush_sel);
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static void gimp_brush_select_popup_open (BrushSelect *brush_sel,
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gint x,
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gint y);
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static void gimp_brush_select_popup_close (BrushSelect *brush_sel);
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static void gimp_brush_select_drag_data_received (GtkWidget *preview,
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GdkDragContext *context,
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gint x,
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gint y,
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GtkSelectionData *selection,
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guint info,
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guint time,
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GtkWidget *widget);
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static const GtkTargetEntry target = { "application/x-gimp-brush-name", 0 };
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/**
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* gimp_brush_select_widget_new:
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* @title: Title of the dialog to use or %NULL to use the default title.
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* @brush_name: Initial brush name or %NULL to use current selection.
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* @opacity: Initial opacity. -1 means to use current opacity.
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* @spacing: Initial spacing. -1 means to use current spacing.
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* @paint_mode: Initial paint mode. -1 means to use current paint mode.
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* @callback: A function to call when the selected brush changes.
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* @data: A pointer to arbitary data to be used in the call to @callback.
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*
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* Creates a new #GtkWidget that completely controls the selection of
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* a #GimpBrush. This widget is suitable for placement in a table in
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* a plug-in dialog.
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*
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* Returns: A #GtkWidget that you can use in your UI.
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*/
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GtkWidget *
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gimp_brush_select_widget_new (const gchar *title,
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const gchar *brush_name,
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gdouble opacity,
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gint spacing,
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GimpLayerModeEffects paint_mode,
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GimpRunBrushCallback callback,
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gpointer data)
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{
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BrushSelect *brush_sel;
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GtkWidget *frame;
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GtkWidget *hbox;
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gint mask_bpp;
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gint mask_data_size;
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gint color_bpp;
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gint color_data_size;
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guint8 *color_data;
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g_return_val_if_fail (callback != NULL, NULL);
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if (! title)
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title = _("Brush Selection");
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brush_sel = g_new0 (BrushSelect, 1);
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brush_sel->title = g_strdup (title);
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brush_sel->callback = callback;
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brush_sel->data = data;
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hbox = gtk_hbox_new (FALSE, 6);
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frame = gtk_frame_new (NULL);
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gtk_frame_set_shadow_type (GTK_FRAME(frame), GTK_SHADOW_IN);
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gtk_box_pack_start (GTK_BOX (hbox), frame, FALSE, FALSE, 0);
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gtk_widget_show (frame);
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brush_sel->preview = gimp_preview_area_new ();
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gtk_widget_add_events (brush_sel->preview,
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GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK);
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gtk_widget_set_size_request (brush_sel->preview, CELL_SIZE, CELL_SIZE);
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gtk_container_add (GTK_CONTAINER (frame), brush_sel->preview);
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gtk_widget_show (brush_sel->preview);
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g_signal_connect_swapped (brush_sel->preview, "size-allocate",
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G_CALLBACK (gimp_brush_select_preview_resize),
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brush_sel);
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g_signal_connect (brush_sel->preview, "event",
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G_CALLBACK (gimp_brush_select_preview_events),
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brush_sel);
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gtk_drag_dest_set (GTK_WIDGET (brush_sel->preview),
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GTK_DEST_DEFAULT_HIGHLIGHT |
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GTK_DEST_DEFAULT_MOTION |
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GTK_DEST_DEFAULT_DROP,
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&target, 1,
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GDK_ACTION_COPY);
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g_signal_connect (brush_sel->preview, "drag-data-received",
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G_CALLBACK (gimp_brush_select_drag_data_received),
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hbox);
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brush_sel->button = gtk_button_new_with_mnemonic (_("_Browse..."));
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gtk_box_pack_end (GTK_BOX (hbox), brush_sel->button, TRUE, TRUE, 0);
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gtk_widget_show (brush_sel->button);
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g_signal_connect (brush_sel->button, "clicked",
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G_CALLBACK (gimp_brush_select_widget_clicked),
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brush_sel);
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g_signal_connect (brush_sel->button, "destroy",
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G_CALLBACK (gimp_brush_select_widget_destroy),
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brush_sel);
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/* Do initial brush setup */
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if (! brush_name || ! strlen (brush_name))
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brush_sel->brush_name = gimp_context_get_brush ();
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else
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brush_sel->brush_name = g_strdup (brush_name);
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if (gimp_brush_get_pixels (brush_sel->brush_name,
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&brush_sel->width,
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&brush_sel->height,
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&mask_bpp,
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&mask_data_size,
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&brush_sel->mask_data,
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&color_bpp,
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&color_data_size,
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&color_data))
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{
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if (color_data)
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g_free (color_data);
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if (opacity == -1)
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brush_sel->opacity = gimp_context_get_opacity ();
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else
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brush_sel->opacity = opacity;
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if (paint_mode == -1)
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brush_sel->paint_mode = gimp_context_get_paint_mode ();
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else
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brush_sel->paint_mode = paint_mode;
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if (spacing == -1)
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gimp_brush_get_spacing (brush_sel->brush_name, &brush_sel->spacing);
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else
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brush_sel->spacing = spacing;
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}
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g_object_set_data (G_OBJECT (hbox), BRUSH_SELECT_DATA_KEY, brush_sel);
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return hbox;
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}
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/**
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* gimp_brush_select_widget_close:
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* @widget: A brush select widget.
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*
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* Closes the popup window associated with @widget.
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*/
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void
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gimp_brush_select_widget_close (GtkWidget *widget)
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{
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BrushSelect *brush_sel;
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brush_sel = g_object_get_data (G_OBJECT (widget), BRUSH_SELECT_DATA_KEY);
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g_return_if_fail (brush_sel != NULL);
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if (brush_sel->temp_brush_callback)
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{
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gimp_brush_select_destroy (brush_sel->temp_brush_callback);
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brush_sel->temp_brush_callback = NULL;
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}
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}
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/**
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* gimp_brush_select_widget_set;
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* @widget: A brush select widget.
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* @brush_name: Brush name to set; %NULL means no change.
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* @opacity: Opacity to set. -1.0 means no change.
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* @spacing: Spacing to set. -1 means no change.
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* @paint_mode: Paint mode to set. -1 means no change.
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*
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* Sets the current brush and other values for the brush select
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* widget. Calls the callback function if one was supplied in the
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* call to gimp_brush_select_widget_new().
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*/
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void
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gimp_brush_select_widget_set (GtkWidget *widget,
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const gchar *brush_name,
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gdouble opacity,
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gint spacing,
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GimpLayerModeEffects paint_mode)
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{
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BrushSelect *brush_sel;
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brush_sel = g_object_get_data (G_OBJECT (widget), BRUSH_SELECT_DATA_KEY);
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g_return_if_fail (brush_sel != NULL);
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if (brush_sel->temp_brush_callback)
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{
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gimp_brushes_set_popup (brush_sel->temp_brush_callback,
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brush_name, opacity, spacing, paint_mode);
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}
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else
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{
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gchar *name;
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gint width;
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gint height;
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gint mask_bpp;
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gint mask_data_size;
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guint8 *mask_data;
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gint color_bpp;
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gint color_data_size;
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guint8 *color_data;
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if (! brush_name || ! strlen (brush_name))
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name = gimp_context_get_brush ();
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else
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name = g_strdup (brush_name);
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if (gimp_brush_get_pixels (name,
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&width,
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&height,
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&mask_bpp,
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&mask_data_size,
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&mask_data,
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&color_bpp,
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&color_data_size,
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&color_data))
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{
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if (color_data)
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g_free (color_data);
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if (opacity < 0.0)
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opacity = gimp_context_get_opacity ();
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if (paint_mode == -1)
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paint_mode = gimp_context_get_paint_mode ();
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if (spacing == -1)
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gimp_brush_get_spacing (name, &spacing);
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gimp_brush_select_widget_callback (name, opacity, spacing,
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paint_mode, width, height,
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mask_data, FALSE, brush_sel);
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g_free (mask_data);
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}
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g_free (name);
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}
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}
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/* private functions */
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static void
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gimp_brush_select_widget_callback (const gchar *name,
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gdouble opacity,
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gint spacing,
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GimpLayerModeEffects paint_mode,
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gint width,
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gint height,
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const guchar *mask_data,
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gboolean closing,
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gpointer data)
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{
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BrushSelect *brush_sel = (BrushSelect *) data;
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g_free (brush_sel->brush_name);
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g_free (brush_sel->mask_data);
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brush_sel->brush_name = g_strdup (name);
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brush_sel->width = width;
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brush_sel->height = height;
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brush_sel->mask_data = g_memdup (mask_data, width * height);
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brush_sel->opacity = opacity;
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brush_sel->spacing = spacing;
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brush_sel->paint_mode = paint_mode;
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gimp_brush_select_preview_update (brush_sel->preview,
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width, height, mask_data);
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if (brush_sel->callback)
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brush_sel->callback (name, opacity, spacing, paint_mode,
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width, height, mask_data, closing, brush_sel->data);
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if (closing)
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brush_sel->temp_brush_callback = NULL;
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}
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static void
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gimp_brush_select_widget_clicked (GtkWidget *widget,
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BrushSelect *brush_sel)
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{
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if (brush_sel->temp_brush_callback)
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{
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/* calling gimp_brushes_set_popup() raises the dialog */
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gimp_brushes_set_popup (brush_sel->temp_brush_callback,
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brush_sel->brush_name,
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brush_sel->opacity,
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brush_sel->spacing,
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brush_sel->paint_mode);
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}
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else
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{
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brush_sel->temp_brush_callback =
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gimp_brush_select_new (brush_sel->title,
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brush_sel->brush_name,
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brush_sel->opacity,
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brush_sel->spacing,
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brush_sel->paint_mode,
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gimp_brush_select_widget_callback,
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brush_sel);
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}
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}
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static void
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gimp_brush_select_widget_destroy (GtkWidget *widget,
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BrushSelect *brush_sel)
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{
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if (brush_sel->temp_brush_callback)
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{
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gimp_brush_select_destroy (brush_sel->temp_brush_callback);
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brush_sel->temp_brush_callback = NULL;
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}
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g_free (brush_sel->title);
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g_free (brush_sel->brush_name);
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g_free (brush_sel->mask_data);
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g_free (brush_sel);
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}
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static void
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gimp_brush_select_preview_resize (BrushSelect *brush_sel)
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{
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if (brush_sel->width > 0 && brush_sel->height > 0)
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gimp_brush_select_preview_update (brush_sel->preview,
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brush_sel->width,
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brush_sel->height,
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brush_sel->mask_data);
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}
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static gboolean
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gimp_brush_select_preview_events (GtkWidget *widget,
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GdkEvent *event,
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BrushSelect *brush_sel)
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{
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GdkEventButton *bevent;
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if (brush_sel->mask_data)
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{
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switch (event->type)
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{
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case GDK_BUTTON_PRESS:
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bevent = (GdkEventButton *) event;
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if (bevent->button == 1)
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{
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gtk_grab_add (widget);
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gimp_brush_select_popup_open (brush_sel, bevent->x, bevent->y);
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}
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break;
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case GDK_BUTTON_RELEASE:
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bevent = (GdkEventButton *) event;
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if (bevent->button == 1)
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{
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gtk_grab_remove (widget);
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gimp_brush_select_popup_close (brush_sel);
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}
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break;
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default:
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break;
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}
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}
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return FALSE;
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}
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static void
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gimp_brush_select_preview_draw (GimpPreviewArea *area,
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gint x,
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gint y,
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gint width,
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gint height,
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const guchar *mask_data,
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gint rowstride)
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{
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const guchar *src;
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guchar *dest;
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guchar *buf;
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gint i, j;
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buf = g_new (guchar, width * height);
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src = mask_data;
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dest = buf;
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for (j = 0; j < height; j++)
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{
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const guchar *s = src;
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for (i = 0; i < width; i++, s++, dest++)
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*dest = 255 - *s;
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src += rowstride;
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}
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gimp_preview_area_draw (area,
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x, y, width, height,
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GIMP_GRAY_IMAGE,
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buf,
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width);
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g_free (buf);
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}
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static void
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gimp_brush_select_preview_update (GtkWidget *preview,
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gint brush_width,
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gint brush_height,
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const guchar *mask_data)
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{
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GimpPreviewArea *area = GIMP_PREVIEW_AREA (preview);
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gint x, y;
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gint width, height;
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width = MIN (brush_width, preview->allocation.width);
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height = MIN (brush_height, preview->allocation.height);
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x = ((preview->allocation.width - width) / 2);
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y = ((preview->allocation.height - height) / 2);
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if (x || y)
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gimp_preview_area_fill (area,
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0, 0,
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preview->allocation.width,
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preview->allocation.height,
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|
0xFF, 0xFF, 0xFF);
|
|
|
|
gimp_brush_select_preview_draw (area,
|
|
x, y, width, height,
|
|
mask_data, brush_width);
|
|
}
|
|
|
|
static void
|
|
gimp_brush_select_popup_open (BrushSelect *brush_sel,
|
|
gint x,
|
|
gint y)
|
|
{
|
|
GtkWidget *frame;
|
|
GtkWidget *preview;
|
|
GdkScreen *screen;
|
|
gint x_org;
|
|
gint y_org;
|
|
gint scr_w;
|
|
gint scr_h;
|
|
|
|
if (brush_sel->popup)
|
|
gimp_brush_select_popup_close (brush_sel);
|
|
|
|
if (brush_sel->width <= CELL_SIZE && brush_sel->height <= CELL_SIZE)
|
|
return;
|
|
|
|
brush_sel->popup = gtk_window_new (GTK_WINDOW_POPUP);
|
|
|
|
frame = gtk_frame_new (NULL);
|
|
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_OUT);
|
|
gtk_container_add (GTK_CONTAINER (brush_sel->popup), frame);
|
|
gtk_widget_show (frame);
|
|
|
|
preview = gimp_preview_area_new ();
|
|
gtk_widget_set_size_request (preview, brush_sel->width, brush_sel->height);
|
|
gtk_container_add (GTK_CONTAINER (frame), preview);
|
|
gtk_widget_show (preview);
|
|
|
|
/* decide where to put the popup */
|
|
gdk_window_get_origin (brush_sel->preview->window, &x_org, &y_org);
|
|
|
|
screen = gtk_widget_get_screen (brush_sel->popup);
|
|
|
|
scr_w = gdk_screen_get_width (screen);
|
|
scr_h = gdk_screen_get_height (screen);
|
|
|
|
x = x_org + x - (brush_sel->width / 2);
|
|
y = y_org + y - (brush_sel->height / 2);
|
|
x = (x < 0) ? 0 : x;
|
|
y = (y < 0) ? 0 : y;
|
|
x = (x + brush_sel->width > scr_w) ? scr_w - brush_sel->width : x;
|
|
y = (y + brush_sel->height > scr_h) ? scr_h - brush_sel->height : y;
|
|
|
|
gtk_window_move (GTK_WINDOW (brush_sel->popup), x, y);
|
|
|
|
gtk_widget_show (brush_sel->popup);
|
|
|
|
/* Draw the brush */
|
|
gimp_brush_select_preview_draw (GIMP_PREVIEW_AREA (preview),
|
|
0, 0, brush_sel->width, brush_sel->height,
|
|
brush_sel->mask_data, brush_sel->width);
|
|
}
|
|
|
|
static void
|
|
gimp_brush_select_popup_close (BrushSelect *brush_sel)
|
|
{
|
|
if (brush_sel->popup)
|
|
{
|
|
gtk_widget_destroy (brush_sel->popup);
|
|
brush_sel->popup = NULL;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gimp_brush_select_drag_data_received (GtkWidget *preview,
|
|
GdkDragContext *context,
|
|
gint x,
|
|
gint y,
|
|
GtkSelectionData *selection,
|
|
guint info,
|
|
guint time,
|
|
GtkWidget *widget)
|
|
{
|
|
gchar *str;
|
|
|
|
if ((selection->format != 8) || (selection->length < 1))
|
|
{
|
|
g_warning ("Received invalid brush data!");
|
|
return;
|
|
}
|
|
|
|
str = g_strndup (selection->data, selection->length);
|
|
|
|
if (g_utf8_validate (str, -1, NULL))
|
|
{
|
|
gint pid;
|
|
gpointer unused;
|
|
gint name_offset = 0;
|
|
|
|
if (sscanf (str, "%i:%p:%n", &pid, &unused, &name_offset) >= 2 &&
|
|
pid == gimp_getpid () && name_offset > 0)
|
|
{
|
|
gchar *name = str + name_offset;
|
|
|
|
gimp_brush_select_widget_set (widget, name, -1.0, -1, -1);
|
|
}
|
|
}
|
|
|
|
g_free (str);
|
|
}
|