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gimp/app/widgets/gimpdnd.c

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995-1997 Spencer Kimball and Peter Mattis
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#include "libgimpcolor/gimpcolor.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "config/gimpcoreconfig.h"
#include "core/gimp.h"
#include "core/gimpbrush.h"
#include "core/gimpbuffer.h"
#include "core/gimpchannel.h"
#include "core/gimpcontainer.h"
#include "core/gimpdatafactory.h"
#include "core/gimpdrawable.h"
#include "core/gimpgradient.h"
#include "core/gimpimage.h"
#include "core/gimpimagefile.h"
#include "core/gimplayer.h"
#include "core/gimplayermask.h"
#include "core/gimppalette.h"
#include "core/gimppattern.h"
#include "core/gimptemplate.h"
#include "core/gimptoolinfo.h"
#include "text/gimpfont.h"
#include "vectors/gimpvectors.h"
#include "gimpdnd.h"
#include "gimpdnd-xds.h"
#include "gimppixbuf.h"
#include "gimpselectiondata.h"
#include "gimpview.h"
#include "gimpviewrendererimage.h"
#include "gimp-log.h"
#include "gimp-intl.h"
#define DRAG_PREVIEW_SIZE GIMP_VIEW_SIZE_LARGE
#define DRAG_ICON_OFFSET -8
typedef GtkWidget * (* GimpDndGetIconFunc) (GtkWidget *widget,
GdkDragContext *context,
GCallback get_data_func,
gpointer get_data_data);
typedef void (* GimpDndDragDataFunc) (GtkWidget *widget,
GdkDragContext *context,
GCallback get_data_func,
gpointer get_data_data,
GtkSelectionData *selection);
typedef gboolean (* GimpDndDropDataFunc) (GtkWidget *widget,
gint x,
gint y,
GCallback set_data_func,
gpointer set_data_data,
GtkSelectionData *selection);
typedef struct _GimpDndDataDef GimpDndDataDef;
struct _GimpDndDataDef
{
GtkTargetEntry target_entry;
const gchar *get_data_func_name;
const gchar *get_data_data_name;
const gchar *set_data_func_name;
const gchar *set_data_data_name;
GimpDndGetIconFunc get_icon_func;
GimpDndDragDataFunc get_data_func;
GimpDndDropDataFunc set_data_func;
};
static GtkWidget * gimp_dnd_get_viewable_icon (GtkWidget *widget,
GdkDragContext *context,
GCallback get_viewable_func,
gpointer get_viewable_data);
static GtkWidget * gimp_dnd_get_component_icon (GtkWidget *widget,
GdkDragContext *context,
GCallback get_comp_func,
gpointer get_comp_data);
static GtkWidget * gimp_dnd_get_color_icon (GtkWidget *widget,
GdkDragContext *context,
GCallback get_color_func,
gpointer get_color_data);
static void gimp_dnd_get_uri_list_data (GtkWidget *widget,
GdkDragContext *context,
GCallback get_uri_list_func,
gpointer get_uri_list_data,
GtkSelectionData *selection);
static gboolean gimp_dnd_set_uri_list_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_uri_list_func,
gpointer set_uri_list_data,
GtkSelectionData *selection);
static void gimp_dnd_get_xds_data (GtkWidget *widget,
GdkDragContext *context,
GCallback get_image_func,
gpointer get_image_data,
GtkSelectionData *selection);
static void gimp_dnd_get_color_data (GtkWidget *widget,
GdkDragContext *context,
GCallback get_color_func,
gpointer get_color_data,
GtkSelectionData *selection);
static gboolean gimp_dnd_set_color_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_color_func,
gpointer set_color_data,
GtkSelectionData *selection);
static void gimp_dnd_get_stream_data (GtkWidget *widget,
GdkDragContext *context,
GCallback get_stream_func,
gpointer get_stream_data,
GtkSelectionData *selection);
static gboolean gimp_dnd_set_stream_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_stream_func,
gpointer set_stream_data,
GtkSelectionData *selection);
static void gimp_dnd_get_pixbuf_data (GtkWidget *widget,
GdkDragContext *context,
GCallback get_pixbuf_func,
gpointer get_pixbuf_data,
GtkSelectionData *selection);
static gboolean gimp_dnd_set_pixbuf_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_pixbuf_func,
gpointer set_pixbuf_data,
GtkSelectionData *selection);
static void gimp_dnd_get_component_data (GtkWidget *widget,
GdkDragContext *context,
GCallback get_comp_func,
gpointer get_comp_data,
GtkSelectionData *selection);
static gboolean gimp_dnd_set_component_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_comp_func,
gpointer set_comp_data,
GtkSelectionData *selection);
static void gimp_dnd_get_image_data (GtkWidget *widget,
GdkDragContext *context,
GCallback get_image_func,
gpointer get_image_data,
GtkSelectionData *selection);
static gboolean gimp_dnd_set_image_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_image_func,
gpointer set_image_data,
GtkSelectionData *selection);
static void gimp_dnd_get_item_data (GtkWidget *widget,
GdkDragContext *context,
GCallback get_item_func,
gpointer get_item_data,
GtkSelectionData *selection);
static gboolean gimp_dnd_set_item_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_item_func,
gpointer set_item_data,
GtkSelectionData *selection);
static void gimp_dnd_get_object_data (GtkWidget *widget,
GdkDragContext *context,
GCallback get_object_func,
gpointer get_object_data,
GtkSelectionData *selection);
static gboolean gimp_dnd_set_brush_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_brush_func,
gpointer set_brush_data,
GtkSelectionData *selection);
static gboolean gimp_dnd_set_pattern_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_pattern_func,
gpointer set_pattern_data,
GtkSelectionData *selection);
static gboolean gimp_dnd_set_gradient_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_gradient_func,
gpointer set_gradient_data,
GtkSelectionData *selection);
static gboolean gimp_dnd_set_palette_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_palette_func,
gpointer set_palette_data,
GtkSelectionData *selection);
static gboolean gimp_dnd_set_font_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_font_func,
gpointer set_font_data,
GtkSelectionData *selection);
static gboolean gimp_dnd_set_buffer_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_buffer_func,
gpointer set_buffer_data,
GtkSelectionData *selection);
static gboolean gimp_dnd_set_imagefile_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_imagefile_func,
gpointer set_imagefile_data,
GtkSelectionData *selection);
static gboolean gimp_dnd_set_template_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_template_func,
gpointer set_template_data,
GtkSelectionData *selection);
static gboolean gimp_dnd_set_tool_info_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_tool_info_func,
gpointer set_tool_info_data,
GtkSelectionData *selection);
static const GimpDndDataDef dnd_data_defs[] =
{
{
{ NULL, 0, -1 },
NULL,
NULL,
NULL,
NULL,
NULL
},
{
GIMP_TARGET_URI_LIST,
"gimp-dnd-get-uri-list-func",
"gimp-dnd-get-uri-list-data",
"gimp-dnd-set-uri-list-func",
"gimp-dnd-set-uri-list-data",
NULL,
gimp_dnd_get_uri_list_data,
gimp_dnd_set_uri_list_data
},
{
GIMP_TARGET_TEXT_PLAIN,
NULL,
NULL,
"gimp-dnd-set-uri-list-func",
"gimp-dnd-set-uri-list-data",
NULL,
NULL,
gimp_dnd_set_uri_list_data
},
{
GIMP_TARGET_NETSCAPE_URL,
NULL,
NULL,
"gimp-dnd-set-uri-list-func",
"gimp-dnd-set-uri-list-data",
NULL,
NULL,
gimp_dnd_set_uri_list_data
},
{
GIMP_TARGET_XDS,
"gimp-dnd-get-xds-func",
"gimp-dnd-get-xds-data",
NULL,
NULL,
gimp_dnd_get_viewable_icon,
gimp_dnd_get_xds_data,
NULL
},
{
GIMP_TARGET_COLOR,
"gimp-dnd-get-color-func",
"gimp-dnd-get-color-data",
"gimp-dnd-set-color-func",
"gimp-dnd-set-color-data",
gimp_dnd_get_color_icon,
gimp_dnd_get_color_data,
gimp_dnd_set_color_data
},
{
GIMP_TARGET_SVG,
"gimp-dnd-get-svg-func",
"gimp-dnd-get-svg-data",
"gimp-dnd-set-svg-func",
"gimp-dnd-set-svg-data",
gimp_dnd_get_viewable_icon,
gimp_dnd_get_stream_data,
gimp_dnd_set_stream_data
},
{
GIMP_TARGET_SVG_XML,
"gimp-dnd-get-svg-xml-func",
"gimp-dnd-get-svg-xml-data",
"gimp-dnd-set-svg-xml-func",
"gimp-dnd-set-svg-xml-data",
gimp_dnd_get_viewable_icon,
gimp_dnd_get_stream_data,
gimp_dnd_set_stream_data
},
{
GIMP_TARGET_PIXBUF,
"gimp-dnd-get-pixbuf-func",
"gimp-dnd-get-pixbuf-data",
"gimp-dnd-set-pixbuf-func",
"gimp-dnd-set-pixbuf-data",
gimp_dnd_get_viewable_icon,
gimp_dnd_get_pixbuf_data,
gimp_dnd_set_pixbuf_data
},
{
GIMP_TARGET_IMAGE,
"gimp-dnd-get-image-func",
"gimp-dnd-get-image-data",
"gimp-dnd-set-image-func",
"gimp-dnd-set-image-data",
gimp_dnd_get_viewable_icon,
gimp_dnd_get_image_data,
gimp_dnd_set_image_data,
},
{
GIMP_TARGET_COMPONENT,
"gimp-dnd-get-component-func",
"gimp-dnd-get-component-data",
"gimp-dnd-set-component-func",
"gimp-dnd-set-component-data",
gimp_dnd_get_component_icon,
gimp_dnd_get_component_data,
gimp_dnd_set_component_data,
},
{
GIMP_TARGET_LAYER,
"gimp-dnd-get-layer-func",
"gimp-dnd-get-layer-data",
"gimp-dnd-set-layer-func",
"gimp-dnd-set-layer-data",
gimp_dnd_get_viewable_icon,
gimp_dnd_get_item_data,
gimp_dnd_set_item_data,
},
{
GIMP_TARGET_CHANNEL,
"gimp-dnd-get-channel-func",
"gimp-dnd-get-channel-data",
"gimp-dnd-set-channel-func",
"gimp-dnd-set-channel-data",
gimp_dnd_get_viewable_icon,
gimp_dnd_get_item_data,
gimp_dnd_set_item_data,
},
{
GIMP_TARGET_LAYER_MASK,
"gimp-dnd-get-layer-mask-func",
"gimp-dnd-get-layer-mask-data",
"gimp-dnd-set-layer-mask-func",
"gimp-dnd-set-layer-mask-data",
gimp_dnd_get_viewable_icon,
gimp_dnd_get_item_data,
gimp_dnd_set_item_data,
},
{
GIMP_TARGET_VECTORS,
"gimp-dnd-get-vectors-func",
"gimp-dnd-get-vectors-data",
"gimp-dnd-set-vectors-func",
"gimp-dnd-set-vectors-data",
gimp_dnd_get_viewable_icon,
gimp_dnd_get_item_data,
gimp_dnd_set_item_data,
},
{
GIMP_TARGET_BRUSH,
"gimp-dnd-get-brush-func",
"gimp-dnd-get-brush-data",
"gimp-dnd-set-brush-func",
"gimp-dnd-set-brush-data",
gimp_dnd_get_viewable_icon,
gimp_dnd_get_object_data,
gimp_dnd_set_brush_data
},
{
GIMP_TARGET_PATTERN,
"gimp-dnd-get-pattern-func",
"gimp-dnd-get-pattern-data",
"gimp-dnd-set-pattern-func",
"gimp-dnd-set-pattern-data",
gimp_dnd_get_viewable_icon,
gimp_dnd_get_object_data,
gimp_dnd_set_pattern_data
},
{
GIMP_TARGET_GRADIENT,
"gimp-dnd-get-gradient-func",
"gimp-dnd-get-gradient-data",
"gimp-dnd-set-gradient-func",
"gimp-dnd-set-gradient-data",
gimp_dnd_get_viewable_icon,
gimp_dnd_get_object_data,
gimp_dnd_set_gradient_data
},
{
GIMP_TARGET_PALETTE,
"gimp-dnd-get-palette-func",
"gimp-dnd-get-palette-data",
"gimp-dnd-set-palette-func",
"gimp-dnd-set-palette-data",
gimp_dnd_get_viewable_icon,
gimp_dnd_get_object_data,
gimp_dnd_set_palette_data
},
{
GIMP_TARGET_FONT,
"gimp-dnd-get-font-func",
"gimp-dnd-get-font-data",
"gimp-dnd-set-font-func",
"gimp-dnd-set-font-data",
gimp_dnd_get_viewable_icon,
gimp_dnd_get_object_data,
gimp_dnd_set_font_data
},
{
GIMP_TARGET_BUFFER,
"gimp-dnd-get-buffer-func",
"gimp-dnd-get-buffer-data",
"gimp-dnd-set-buffer-func",
"gimp-dnd-set-buffer-data",
gimp_dnd_get_viewable_icon,
gimp_dnd_get_object_data,
gimp_dnd_set_buffer_data
},
{
GIMP_TARGET_IMAGEFILE,
"gimp-dnd-get-imagefile-func",
"gimp-dnd-get-imagefile-data",
"gimp-dnd-set-imagefile-func",
"gimp-dnd-set-imagefile-data",
gimp_dnd_get_viewable_icon,
gimp_dnd_get_object_data,
gimp_dnd_set_imagefile_data
},
{
GIMP_TARGET_TEMPLATE,
"gimp-dnd-get-template-func",
"gimp-dnd-get-template-data",
"gimp-dnd-set-template-func",
"gimp-dnd-set-template-data",
gimp_dnd_get_viewable_icon,
gimp_dnd_get_object_data,
gimp_dnd_set_template_data
},
{
GIMP_TARGET_TOOL_INFO,
"gimp-dnd-get-tool-info-func",
"gimp-dnd-get-tool-info-data",
"gimp-dnd-set-tool-info-func",
"gimp-dnd-set-tool-info-data",
gimp_dnd_get_viewable_icon,
gimp_dnd_get_object_data,
gimp_dnd_set_tool_info_data
},
{
GIMP_TARGET_NOTEBOOK_TAB,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL,
NULL
}
};
static Gimp *the_dnd_gimp = NULL;
void
gimp_dnd_init (Gimp *gimp)
{
g_return_if_fail (GIMP_IS_GIMP (gimp));
g_return_if_fail (the_dnd_gimp == NULL);
the_dnd_gimp = gimp;
}
/**********************/
/* helper functions */
/**********************/
static void
gimp_dnd_target_list_add (GtkTargetList *list,
const GtkTargetEntry *entry)
{
GdkAtom atom = gdk_atom_intern (entry->target, FALSE);
guint info;
if (! gtk_target_list_find (list, atom, &info) || info != entry->info)
{
gtk_target_list_add (list, atom, entry->flags, entry->info);
}
}
/********************************/
/* general data dnd functions */
/********************************/
static void
gimp_dnd_data_drag_begin (GtkWidget *widget,
GdkDragContext *context,
gpointer data)
{
const GimpDndDataDef *dnd_data;
GimpDndType data_type;
GCallback get_data_func = NULL;
gpointer get_data_data = NULL;
GtkWidget *icon_widget;
data_type = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget),
"gimp-dnd-get-data-type"));
GIMP_LOG (DND, "data type %d", data_type);
if (! data_type)
return;
dnd_data = dnd_data_defs + data_type;
if (dnd_data->get_data_func_name)
get_data_func = g_object_get_data (G_OBJECT (widget),
dnd_data->get_data_func_name);
if (dnd_data->get_data_data_name)
get_data_data = g_object_get_data (G_OBJECT (widget),
dnd_data->get_data_data_name);
if (! get_data_func)
return;
icon_widget = dnd_data->get_icon_func (widget,
context,
get_data_func,
get_data_data);
if (icon_widget)
{
GtkWidget *frame;
GtkWidget *window;
window = gtk_window_new (GTK_WINDOW_POPUP);
gtk_window_set_type_hint (GTK_WINDOW (window), GDK_WINDOW_TYPE_HINT_DND);
gtk_window_set_screen (GTK_WINDOW (window),
gtk_widget_get_screen (widget));
gtk_widget_realize (window);
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_OUT);
gtk_container_add (GTK_CONTAINER (window), frame);
gtk_widget_show (frame);
gtk_container_add (GTK_CONTAINER (frame), icon_widget);
gtk_widget_show (icon_widget);
g_object_set_data_full (G_OBJECT (widget), "gimp-dnd-data-widget",
window, (GDestroyNotify) gtk_widget_destroy);
gtk_drag_set_icon_widget (context, window,
DRAG_ICON_OFFSET, DRAG_ICON_OFFSET);
/* remember for which drag context the widget was made */
g_object_set_data (G_OBJECT (window), "gimp-gdk-drag-context", context);
}
}
static void
gimp_dnd_data_drag_end (GtkWidget *widget,
GdkDragContext *context)
{
GimpDndType data_type;
GtkWidget *icon_widget;
data_type = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget),
"gimp-dnd-get-data-type"));
GIMP_LOG (DND, "data type %d", data_type);
icon_widget = g_object_get_data (G_OBJECT (widget), "gimp-dnd-data-widget");
if (icon_widget)
{
/* destroy the icon_widget only if it was made for this drag
* context. See bug #139337.
*/
if (g_object_get_data (G_OBJECT (icon_widget),
"gimp-gdk-drag-context") ==
(gpointer) context)
{
g_object_set_data (G_OBJECT (widget), "gimp-dnd-data-widget", NULL);
}
}
}
static void
gimp_dnd_data_drag_handle (GtkWidget *widget,
GdkDragContext *context,
GtkSelectionData *selection_data,
guint info,
guint time,
gpointer data)
{
GCallback get_data_func = NULL;
gpointer get_data_data = NULL;
GimpDndType data_type;
GIMP_LOG (DND, "data type %d", info);
for (data_type = GIMP_DND_TYPE_NONE + 1;
data_type <= GIMP_DND_TYPE_LAST;
data_type++)
{
const GimpDndDataDef *dnd_data = dnd_data_defs + data_type;
if (dnd_data->target_entry.info == info)
{
GIMP_LOG (DND, "target %s", dnd_data->target_entry.target);
if (dnd_data->get_data_func_name)
get_data_func = g_object_get_data (G_OBJECT (widget),
dnd_data->get_data_func_name);
if (dnd_data->get_data_data_name)
get_data_data = g_object_get_data (G_OBJECT (widget),
dnd_data->get_data_data_name);
if (! get_data_func)
return;
dnd_data->get_data_func (widget,
context,
get_data_func,
get_data_data,
selection_data);
return;
}
}
}
static void
gimp_dnd_data_drop_handle (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *selection_data,
guint info,
guint time,
gpointer data)
{
GimpDndType data_type;
GIMP_LOG (DND, "data type %d", info);
if (gtk_selection_data_get_length (selection_data) <= 0)
{
gtk_drag_finish (context, FALSE, FALSE, time);
return;
}
for (data_type = GIMP_DND_TYPE_NONE + 1;
data_type <= GIMP_DND_TYPE_LAST;
data_type++)
{
const GimpDndDataDef *dnd_data = dnd_data_defs + data_type;
if (dnd_data->target_entry.info == info)
{
GCallback set_data_func = NULL;
gpointer set_data_data = NULL;
GIMP_LOG (DND, "target %s", dnd_data->target_entry.target);
if (dnd_data->set_data_func_name)
set_data_func = g_object_get_data (G_OBJECT (widget),
dnd_data->set_data_func_name);
if (dnd_data->set_data_data_name)
set_data_data = g_object_get_data (G_OBJECT (widget),
dnd_data->set_data_data_name);
if (set_data_func &&
dnd_data->set_data_func (widget, x, y,
set_data_func,
set_data_data,
selection_data))
{
gtk_drag_finish (context, TRUE, FALSE, time);
return;
}
gtk_drag_finish (context, FALSE, FALSE, time);
return;
}
}
}
static void
gimp_dnd_data_source_add (GimpDndType data_type,
GtkWidget *widget,
GCallback get_data_func,
gpointer get_data_data)
{
const GimpDndDataDef *dnd_data;
gboolean drag_connected;
dnd_data = dnd_data_defs + data_type;
/* set a default drag source if not already done */
if (! g_object_get_data (G_OBJECT (widget), "gtk-site-data"))
gtk_drag_source_set (widget, GDK_BUTTON1_MASK | GDK_BUTTON2_MASK,
NULL, 0,
GDK_ACTION_COPY | GDK_ACTION_MOVE);
drag_connected =
GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget),
"gimp-dnd-drag-connected"));
if (! drag_connected)
{
g_signal_connect (widget, "drag-begin",
G_CALLBACK (gimp_dnd_data_drag_begin),
NULL);
g_signal_connect (widget, "drag-end",
G_CALLBACK (gimp_dnd_data_drag_end),
NULL);
g_signal_connect (widget, "drag-data-get",
G_CALLBACK (gimp_dnd_data_drag_handle),
NULL);
g_object_set_data (G_OBJECT (widget), "gimp-dnd-drag-connected",
GINT_TO_POINTER (TRUE));
}
g_object_set_data (G_OBJECT (widget), dnd_data->get_data_func_name,
get_data_func);
g_object_set_data (G_OBJECT (widget), dnd_data->get_data_data_name,
get_data_data);
/* remember the first set source type for drag view creation */
if (! g_object_get_data (G_OBJECT (widget), "gimp-dnd-get-data-type"))
g_object_set_data (G_OBJECT (widget), "gimp-dnd-get-data-type",
GINT_TO_POINTER (data_type));
if (dnd_data->target_entry.target)
{
GtkTargetList *target_list;
target_list = gtk_drag_source_get_target_list (widget);
if (target_list)
{
gimp_dnd_target_list_add (target_list, &dnd_data->target_entry);
}
else
{
target_list = gtk_target_list_new (&dnd_data->target_entry, 1);
gtk_drag_source_set_target_list (widget, target_list);
gtk_target_list_unref (target_list);
}
}
}
static gboolean
gimp_dnd_data_source_remove (GimpDndType data_type,
GtkWidget *widget)
{
const GimpDndDataDef *dnd_data;
gboolean drag_connected;
gboolean list_changed = FALSE;
drag_connected =
GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget),
"gimp-dnd-drag-connected"));
if (! drag_connected)
return FALSE;
dnd_data = dnd_data_defs + data_type;
g_object_set_data (G_OBJECT (widget), dnd_data->get_data_func_name, NULL);
g_object_set_data (G_OBJECT (widget), dnd_data->get_data_data_name, NULL);
/* remove the dnd type remembered for the dnd icon */
if (data_type ==
GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget),
"gimp-dnd-get-data-type")))
g_object_set_data (G_OBJECT (widget), "gimp-dnd-get-data-type", NULL);
if (dnd_data->target_entry.target)
{
/* Don't just remove the target from the existing list, create a
* new list without the target and replace the old list. The
* source's target list is part of a drag operation's state, but
* only by reference, it's not copied. So when we change the
* list, we would change the state of that ongoing drag, making
* it impossible to drop anything. See bug #676522.
*/
GtkTargetList *target_list = gtk_drag_source_get_target_list (widget);
if (target_list)
{
GtkTargetList *new_list;
GtkTargetEntry *targets;
gint n_targets_old;
gint n_targets_new;
gint i;
targets = gtk_target_table_new_from_list (target_list, &n_targets_old);
new_list = gtk_target_list_new (NULL, 0);
for (i = 0; i < n_targets_old; i++)
{
if (targets[i].info != data_type)
{
gtk_target_list_add (new_list,
gdk_atom_intern (targets[i].target, FALSE),
targets[i].flags,
targets[i].info);
}
}
gtk_target_table_free (targets, n_targets_old);
targets = gtk_target_table_new_from_list (new_list, &n_targets_new);
gtk_target_table_free (targets, n_targets_new);
if (n_targets_old != n_targets_new)
{
list_changed = TRUE;
if (n_targets_new > 0)
gtk_drag_source_set_target_list (widget, new_list);
else
gtk_drag_source_set_target_list (widget, NULL);
}
gtk_target_list_unref (new_list);
}
}
return list_changed;
}
static void
gimp_dnd_data_dest_add (GimpDndType data_type,
GtkWidget *widget,
gpointer set_data_func,
gpointer set_data_data)
{
const GimpDndDataDef *dnd_data;
gboolean drop_connected;
/* set a default drag dest if not already done */
if (! g_object_get_data (G_OBJECT (widget), "gtk-drag-dest"))
gtk_drag_dest_set (widget, GTK_DEST_DEFAULT_ALL, NULL, 0, GDK_ACTION_COPY);
drop_connected =
GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget),
"gimp-dnd-drop-connected"));
if (set_data_func && ! drop_connected)
{
g_signal_connect (widget, "drag-data-received",
G_CALLBACK (gimp_dnd_data_drop_handle),
NULL);
g_object_set_data (G_OBJECT (widget), "gimp-dnd-drop-connected",
GINT_TO_POINTER (TRUE));
}
dnd_data = dnd_data_defs + data_type;
if (set_data_func)
{
g_object_set_data (G_OBJECT (widget), dnd_data->set_data_func_name,
set_data_func);
g_object_set_data (G_OBJECT (widget), dnd_data->set_data_data_name,
set_data_data);
}
if (dnd_data->target_entry.target)
{
GtkTargetList *target_list;
target_list = gtk_drag_dest_get_target_list (widget);
if (target_list)
{
gimp_dnd_target_list_add (target_list, &dnd_data->target_entry);
}
else
{
target_list = gtk_target_list_new (&dnd_data->target_entry, 1);
gtk_drag_dest_set_target_list (widget, target_list);
gtk_target_list_unref (target_list);
}
}
}
static void
gimp_dnd_data_dest_remove (GimpDndType data_type,
GtkWidget *widget)
{
const GimpDndDataDef *dnd_data;
dnd_data = dnd_data_defs + data_type;
g_object_set_data (G_OBJECT (widget), dnd_data->set_data_func_name, NULL);
g_object_set_data (G_OBJECT (widget), dnd_data->set_data_data_name, NULL);
if (dnd_data->target_entry.target)
{
GtkTargetList *target_list;
target_list = gtk_drag_dest_get_target_list (widget);
if (target_list)
{
GdkAtom atom = gdk_atom_intern (dnd_data->target_entry.target, TRUE);
if (atom != GDK_NONE)
gtk_target_list_remove (target_list, atom);
}
}
}
/****************************/
/* uri list dnd functions */
/****************************/
static void
gimp_dnd_get_uri_list_data (GtkWidget *widget,
GdkDragContext *context,
GCallback get_uri_list_func,
gpointer get_uri_list_data,
GtkSelectionData *selection)
{
GList *uri_list;
uri_list = (* (GimpDndDragUriListFunc) get_uri_list_func) (widget,
get_uri_list_data);
GIMP_LOG (DND, "uri_list %p", uri_list);
if (uri_list)
{
gimp_selection_data_set_uri_list (selection, uri_list);
g_list_free_full (uri_list, (GDestroyNotify) g_free);
}
}
static gboolean
gimp_dnd_set_uri_list_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_uri_list_func,
gpointer set_uri_list_data,
GtkSelectionData *selection)
{
GList *uri_list = gimp_selection_data_get_uri_list (selection);
GIMP_LOG (DND, "uri_list %p", uri_list);
if (! uri_list)
return FALSE;
(* (GimpDndDropUriListFunc) set_uri_list_func) (widget, x, y, uri_list,
set_uri_list_data);
g_list_free_full (uri_list, (GDestroyNotify) g_free);
return TRUE;
}
void
gimp_dnd_uri_list_source_add (GtkWidget *widget,
GimpDndDragUriListFunc get_uri_list_func,
gpointer data)
{
g_return_if_fail (GTK_IS_WIDGET (widget));
gimp_dnd_data_source_add (GIMP_DND_TYPE_URI_LIST, widget,
G_CALLBACK (get_uri_list_func),
data);
}
void
gimp_dnd_uri_list_source_remove (GtkWidget *widget)
{
g_return_if_fail (GTK_IS_WIDGET (widget));
gimp_dnd_data_source_remove (GIMP_DND_TYPE_URI_LIST, widget);
}
void
gimp_dnd_uri_list_dest_add (GtkWidget *widget,
GimpDndDropUriListFunc set_uri_list_func,
gpointer data)
{
g_return_if_fail (GTK_IS_WIDGET (widget));
/* Set a default drag dest if not already done. Explicitly set
* COPY and MOVE for file drag destinations. Some file managers
* such as Konqueror only offer MOVE by default.
*/
if (! g_object_get_data (G_OBJECT (widget), "gtk-drag-dest"))
gtk_drag_dest_set (widget,
GTK_DEST_DEFAULT_ALL, NULL, 0,
GDK_ACTION_COPY | GDK_ACTION_MOVE);
gimp_dnd_data_dest_add (GIMP_DND_TYPE_URI_LIST, widget,
G_CALLBACK (set_uri_list_func),
data);
gimp_dnd_data_dest_add (GIMP_DND_TYPE_TEXT_PLAIN, widget,
G_CALLBACK (set_uri_list_func),
data);
gimp_dnd_data_dest_add (GIMP_DND_TYPE_NETSCAPE_URL, widget,
G_CALLBACK (set_uri_list_func),
data);
}
void
gimp_dnd_uri_list_dest_remove (GtkWidget *widget)
{
g_return_if_fail (GTK_IS_WIDGET (widget));
gimp_dnd_data_dest_remove (GIMP_DND_TYPE_URI_LIST, widget);
gimp_dnd_data_dest_remove (GIMP_DND_TYPE_TEXT_PLAIN, widget);
gimp_dnd_data_dest_remove (GIMP_DND_TYPE_NETSCAPE_URL, widget);
}
/******************************/
/* Direct Save Protocol (XDS) */
/******************************/
static void
gimp_dnd_get_xds_data (GtkWidget *widget,
GdkDragContext *context,
GCallback get_image_func,
gpointer get_image_data,
GtkSelectionData *selection)
{
GimpImage *image;
GimpContext *gimp_context;
image = g_object_get_data (G_OBJECT (context), "gimp-dnd-viewable");
if (! image)
image = (GimpImage *)
(* (GimpDndDragViewableFunc) get_image_func) (widget, &gimp_context,
get_image_data);
GIMP_LOG (DND, "image %p", image);
if (image)
gimp_dnd_xds_save_image (context, image, selection);
}
static void
gimp_dnd_xds_drag_begin (GtkWidget *widget,
GdkDragContext *context)
{
const GimpDndDataDef *dnd_data = dnd_data_defs + GIMP_DND_TYPE_XDS;
GCallback get_data_func;
gpointer get_data_data;
get_data_func = g_object_get_data (G_OBJECT (widget),
dnd_data->get_data_func_name);
get_data_data = g_object_get_data (G_OBJECT (widget),
dnd_data->get_data_data_name);
if (get_data_func)
{
GimpImage *image;
GimpContext *gimp_context;
image = (GimpImage *)
(* (GimpDndDragViewableFunc) get_data_func) (widget, &gimp_context,
get_data_data);
GIMP_LOG (DND, "image %p", image);
gimp_dnd_xds_source_set (context, image);
}
}
static void
gimp_dnd_xds_drag_end (GtkWidget *widget,
GdkDragContext *context)
{
gimp_dnd_xds_source_set (context, NULL);
}
void
gimp_dnd_xds_source_add (GtkWidget *widget,
GimpDndDragViewableFunc get_image_func,
gpointer data)
{
gulong handler;
g_return_if_fail (GTK_IS_WIDGET (widget));
gimp_dnd_data_source_add (GIMP_DND_TYPE_XDS, widget,
G_CALLBACK (get_image_func),
data);
handler = GPOINTER_TO_UINT (g_object_get_data (G_OBJECT (widget),
"gimp-dnd-xds-drag-begin"));
if (! handler)
{
handler = g_signal_connect (widget, "drag-begin",
G_CALLBACK (gimp_dnd_xds_drag_begin),
NULL);
g_object_set_data (G_OBJECT (widget), "gimp-dnd-xds-drag-begin",
GUINT_TO_POINTER (handler));
}
handler = GPOINTER_TO_UINT (g_object_get_data (G_OBJECT (widget),
"gimp-dnd-xds-drag-end"));
if (! handler)
{
handler = g_signal_connect (widget, "drag-end",
G_CALLBACK (gimp_dnd_xds_drag_end),
NULL);
g_object_set_data (G_OBJECT (widget), "gimp-dnd-xds-drag-end",
GUINT_TO_POINTER (handler));
}
}
void
gimp_dnd_xds_source_remove (GtkWidget *widget)
{
gulong handler;
g_return_if_fail (GTK_IS_WIDGET (widget));
handler = GPOINTER_TO_UINT (g_object_get_data (G_OBJECT (widget),
"gimp-dnd-xds-drag-begin"));
if (handler)
{
g_signal_handler_disconnect (widget, handler);
g_object_set_data (G_OBJECT (widget), "gimp-dnd-xds-drag-begin", NULL);
}
handler = GPOINTER_TO_UINT (g_object_get_data (G_OBJECT (widget),
"gimp-dnd-xds-drag-end"));
if (handler)
{
g_signal_handler_disconnect (widget, handler);
g_object_set_data (G_OBJECT (widget), "gimp-dnd-xds-drag-end", NULL);
}
gimp_dnd_data_source_remove (GIMP_DND_TYPE_XDS, widget);
}
/*************************/
/* color dnd functions */
/*************************/
static GtkWidget *
gimp_dnd_get_color_icon (GtkWidget *widget,
GdkDragContext *context,
GCallback get_color_func,
gpointer get_color_data)
{
GtkWidget *color_area;
GimpRGB color;
(* (GimpDndDragColorFunc) get_color_func) (widget, &color, get_color_data);
GIMP_LOG (DND, "called");
g_object_set_data_full (G_OBJECT (context),
"gimp-dnd-color", g_memdup (&color, sizeof (GimpRGB)),
(GDestroyNotify) g_free);
color_area = gimp_color_area_new (&color, GIMP_COLOR_AREA_SMALL_CHECKS, 0);
gimp_color_area_set_color_config (GIMP_COLOR_AREA (color_area),
the_dnd_gimp->config->color_management);
gtk_widget_set_size_request (color_area,
DRAG_PREVIEW_SIZE, DRAG_PREVIEW_SIZE);
return color_area;
}
static void
gimp_dnd_get_color_data (GtkWidget *widget,
GdkDragContext *context,
GCallback get_color_func,
gpointer get_color_data,
GtkSelectionData *selection)
{
GimpRGB *c;
GimpRGB color;
c = g_object_get_data (G_OBJECT (context), "gimp-dnd-color");
if (c)
color = *c;
else
(* (GimpDndDragColorFunc) get_color_func) (widget, &color, get_color_data);
GIMP_LOG (DND, "called");
gimp_selection_data_set_color (selection, &color);
}
static gboolean
gimp_dnd_set_color_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_color_func,
gpointer set_color_data,
GtkSelectionData *selection)
{
GimpRGB color;
GIMP_LOG (DND, "called");
if (! gimp_selection_data_get_color (selection, &color))
return FALSE;
(* (GimpDndDropColorFunc) set_color_func) (widget, x, y, &color,
set_color_data);
return TRUE;
}
void
gimp_dnd_color_source_add (GtkWidget *widget,
GimpDndDragColorFunc get_color_func,
gpointer data)
{
g_return_if_fail (GTK_IS_WIDGET (widget));
gimp_dnd_data_source_add (GIMP_DND_TYPE_COLOR, widget,
G_CALLBACK (get_color_func),
data);
}
void
gimp_dnd_color_source_remove (GtkWidget *widget)
{
g_return_if_fail (GTK_IS_WIDGET (widget));
gimp_dnd_data_source_remove (GIMP_DND_TYPE_COLOR, widget);
}
void
gimp_dnd_color_dest_add (GtkWidget *widget,
GimpDndDropColorFunc set_color_func,
gpointer data)
{
g_return_if_fail (GTK_IS_WIDGET (widget));
gimp_dnd_data_dest_add (GIMP_DND_TYPE_COLOR, widget,
G_CALLBACK (set_color_func),
data);
}
void
gimp_dnd_color_dest_remove (GtkWidget *widget)
{
g_return_if_fail (GTK_IS_WIDGET (widget));
gimp_dnd_data_dest_remove (GIMP_DND_TYPE_COLOR, widget);
}
/**************************/
/* stream dnd functions */
/**************************/
static void
gimp_dnd_get_stream_data (GtkWidget *widget,
GdkDragContext *context,
GCallback get_stream_func,
gpointer get_stream_data,
GtkSelectionData *selection)
{
guchar *stream;
gsize stream_length;
stream = (* (GimpDndDragStreamFunc) get_stream_func) (widget, &stream_length,
get_stream_data);
GIMP_LOG (DND, "stream %p, length %" G_GSIZE_FORMAT, stream, stream_length);
if (stream)
{
gimp_selection_data_set_stream (selection, stream, stream_length);
g_free (stream);
}
}
static gboolean
gimp_dnd_set_stream_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_stream_func,
gpointer set_stream_data,
GtkSelectionData *selection)
{
const guchar *stream;
gsize stream_length;
stream = gimp_selection_data_get_stream (selection, &stream_length);
GIMP_LOG (DND, "stream %p, length %" G_GSIZE_FORMAT, stream, stream_length);
if (! stream)
return FALSE;
(* (GimpDndDropStreamFunc) set_stream_func) (widget, x, y,
stream, stream_length,
set_stream_data);
return TRUE;
}
void
gimp_dnd_svg_source_add (GtkWidget *widget,
GimpDndDragStreamFunc get_svg_func,
gpointer data)
{
g_return_if_fail (GTK_IS_WIDGET (widget));
gimp_dnd_data_source_add (GIMP_DND_TYPE_SVG, widget,
G_CALLBACK (get_svg_func),
data);
gimp_dnd_data_source_add (GIMP_DND_TYPE_SVG_XML, widget,
G_CALLBACK (get_svg_func),
data);
}
void
gimp_dnd_svg_source_remove (GtkWidget *widget)
{
g_return_if_fail (GTK_IS_WIDGET (widget));
gimp_dnd_data_source_remove (GIMP_DND_TYPE_SVG, widget);
gimp_dnd_data_source_remove (GIMP_DND_TYPE_SVG_XML, widget);
}
void
gimp_dnd_svg_dest_add (GtkWidget *widget,
GimpDndDropStreamFunc set_svg_func,
gpointer data)
{
g_return_if_fail (GTK_IS_WIDGET (widget));
gimp_dnd_data_dest_add (GIMP_DND_TYPE_SVG, widget,
G_CALLBACK (set_svg_func),
data);
gimp_dnd_data_dest_add (GIMP_DND_TYPE_SVG_XML, widget,
G_CALLBACK (set_svg_func),
data);
}
void
gimp_dnd_svg_dest_remove (GtkWidget *widget)
{
g_return_if_fail (GTK_IS_WIDGET (widget));
gimp_dnd_data_dest_remove (GIMP_DND_TYPE_SVG, widget);
gimp_dnd_data_dest_remove (GIMP_DND_TYPE_SVG_XML, widget);
}
/**************************/
/* pixbuf dnd functions */
/**************************/
static void
gimp_dnd_get_pixbuf_data (GtkWidget *widget,
GdkDragContext *context,
GCallback get_pixbuf_func,
gpointer get_pixbuf_data,
GtkSelectionData *selection)
{
GdkPixbuf *pixbuf;
pixbuf = (* (GimpDndDragPixbufFunc) get_pixbuf_func) (widget,
get_pixbuf_data);
GIMP_LOG (DND, "pixbuf %p", pixbuf);
if (pixbuf)
{
gimp_set_busy (the_dnd_gimp);
gtk_selection_data_set_pixbuf (selection, pixbuf);
g_object_unref (pixbuf);
gimp_unset_busy (the_dnd_gimp);
}
}
static gboolean
gimp_dnd_set_pixbuf_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_pixbuf_func,
gpointer set_pixbuf_data,
GtkSelectionData *selection)
{
GdkPixbuf *pixbuf;
gimp_set_busy (the_dnd_gimp);
pixbuf = gtk_selection_data_get_pixbuf (selection);
gimp_unset_busy (the_dnd_gimp);
GIMP_LOG (DND, "pixbuf %p", pixbuf);
if (! pixbuf)
return FALSE;
(* (GimpDndDropPixbufFunc) set_pixbuf_func) (widget, x, y,
pixbuf,
set_pixbuf_data);
g_object_unref (pixbuf);
return TRUE;
}
void
gimp_dnd_pixbuf_source_add (GtkWidget *widget,
GimpDndDragPixbufFunc get_pixbuf_func,
gpointer data)
{
GtkTargetList *target_list;
g_return_if_fail (GTK_IS_WIDGET (widget));
gimp_dnd_data_source_add (GIMP_DND_TYPE_PIXBUF, widget,
G_CALLBACK (get_pixbuf_func),
data);
target_list = gtk_drag_source_get_target_list (widget);
if (target_list)
gtk_target_list_ref (target_list);
else
target_list = gtk_target_list_new (NULL, 0);
gimp_pixbuf_targets_add (target_list, GIMP_DND_TYPE_PIXBUF, TRUE);
gtk_drag_source_set_target_list (widget, target_list);
gtk_target_list_unref (target_list);
}
void
gimp_dnd_pixbuf_source_remove (GtkWidget *widget)
{
GtkTargetList *target_list;
g_return_if_fail (GTK_IS_WIDGET (widget));
gimp_dnd_data_source_remove (GIMP_DND_TYPE_PIXBUF, widget);
target_list = gtk_drag_source_get_target_list (widget);
if (target_list)
gimp_pixbuf_targets_remove (target_list);
}
void
gimp_dnd_pixbuf_dest_add (GtkWidget *widget,
GimpDndDropPixbufFunc set_pixbuf_func,
gpointer data)
{
GtkTargetList *target_list;
g_return_if_fail (GTK_IS_WIDGET (widget));
gimp_dnd_data_dest_add (GIMP_DND_TYPE_PIXBUF, widget,
G_CALLBACK (set_pixbuf_func),
data);
target_list = gtk_drag_dest_get_target_list (widget);
if (target_list)
gtk_target_list_ref (target_list);
else
target_list = gtk_target_list_new (NULL, 0);
gimp_pixbuf_targets_add (target_list, GIMP_DND_TYPE_PIXBUF, FALSE);
gtk_drag_dest_set_target_list (widget, target_list);
gtk_target_list_unref (target_list);
}
void
gimp_dnd_pixbuf_dest_remove (GtkWidget *widget)
{
GtkTargetList *target_list;
g_return_if_fail (GTK_IS_WIDGET (widget));
gimp_dnd_data_dest_remove (GIMP_DND_TYPE_PIXBUF, widget);
target_list = gtk_drag_dest_get_target_list (widget);
if (target_list)
gimp_pixbuf_targets_remove (target_list);
}
/*****************************/
/* component dnd functions */
/*****************************/
static GtkWidget *
gimp_dnd_get_component_icon (GtkWidget *widget,
GdkDragContext *context,
GCallback get_comp_func,
gpointer get_comp_data)
{
GtkWidget *view;
GimpImage *image;
GimpContext *gimp_context;
GimpChannelType channel;
image = (* (GimpDndDragComponentFunc) get_comp_func) (widget, &gimp_context,
&channel,
get_comp_data);
GIMP_LOG (DND, "image %p, component %d", image, channel);
if (! image)
return NULL;
g_object_set_data_full (G_OBJECT (context),
"gimp-dnd-viewable", g_object_ref (image),
(GDestroyNotify) g_object_unref);
g_object_set_data (G_OBJECT (context),
"gimp-dnd-component", GINT_TO_POINTER (channel));
view = gimp_view_new (gimp_context, GIMP_VIEWABLE (image),
DRAG_PREVIEW_SIZE, 0, TRUE);
GIMP_VIEW_RENDERER_IMAGE (GIMP_VIEW (view)->renderer)->channel = channel;
return view;
}
static void
gimp_dnd_get_component_data (GtkWidget *widget,
GdkDragContext *context,
GCallback get_comp_func,
gpointer get_comp_data,
GtkSelectionData *selection)
{
GimpImage *image;
GimpContext *gimp_context;
GimpChannelType channel = 0;
image = g_object_get_data (G_OBJECT (context), "gimp-dnd-viewable");
channel = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (context),
"gimp-dnd-component"));
if (! image)
image = (* (GimpDndDragComponentFunc) get_comp_func) (widget, &gimp_context,
&channel,
get_comp_data);
GIMP_LOG (DND, "image %p, component %d", image, channel);
if (image)
gimp_selection_data_set_component (selection, image, channel);
}
static gboolean
gimp_dnd_set_component_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_comp_func,
gpointer set_comp_data,
GtkSelectionData *selection)
{
GimpImage *image;
GimpChannelType channel = 0;
image = gimp_selection_data_get_component (selection, the_dnd_gimp,
&channel);
GIMP_LOG (DND, "image %p, component %d", image, channel);
if (! image)
return FALSE;
(* (GimpDndDropComponentFunc) set_comp_func) (widget, x, y,
image, channel,
set_comp_data);
return TRUE;
}
void
gimp_dnd_component_source_add (GtkWidget *widget,
GimpDndDragComponentFunc get_comp_func,
gpointer data)
{
g_return_if_fail (GTK_IS_WIDGET (widget));
gimp_dnd_data_source_add (GIMP_DND_TYPE_COMPONENT, widget,
G_CALLBACK (get_comp_func),
data);
}
void
gimp_dnd_component_source_remove (GtkWidget *widget)
{
g_return_if_fail (GTK_IS_WIDGET (widget));
gimp_dnd_data_source_remove (GIMP_DND_TYPE_COMPONENT, widget);
}
void
gimp_dnd_component_dest_add (GtkWidget *widget,
GimpDndDropComponentFunc set_comp_func,
gpointer data)
{
g_return_if_fail (GTK_IS_WIDGET (widget));
gimp_dnd_data_dest_add (GIMP_DND_TYPE_COMPONENT, widget,
G_CALLBACK (set_comp_func),
data);
}
void
gimp_dnd_component_dest_remove (GtkWidget *widget)
{
g_return_if_fail (GTK_IS_WIDGET (widget));
gimp_dnd_data_dest_remove (GIMP_DND_TYPE_COMPONENT, widget);
}
/*******************************************/
/* GimpViewable (by GType) dnd functions */
/*******************************************/
static GtkWidget *
gimp_dnd_get_viewable_icon (GtkWidget *widget,
GdkDragContext *context,
GCallback get_viewable_func,
gpointer get_viewable_data)
{
GimpViewable *viewable;
GimpContext *gimp_context;
GtkWidget *view;
gchar *desc;
viewable = (* (GimpDndDragViewableFunc) get_viewable_func) (widget,
&gimp_context,
get_viewable_data);
GIMP_LOG (DND, "viewable %p", viewable);
if (! viewable)
return NULL;
g_object_set_data_full (G_OBJECT (context),
"gimp-dnd-viewable", g_object_ref (viewable),
(GDestroyNotify) g_object_unref);
view = gimp_view_new (gimp_context, viewable,
DRAG_PREVIEW_SIZE, 0, TRUE);
desc = gimp_viewable_get_description (viewable, NULL);
if (desc)
{
GtkWidget *hbox;
GtkWidget *label;
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 3);
gtk_container_set_border_width (GTK_CONTAINER (hbox), 3);
gtk_box_pack_start (GTK_BOX (hbox), view, FALSE, FALSE, 0);
gtk_widget_show (view);
label = g_object_new (GTK_TYPE_LABEL,
"label", desc,
"xpad", 3,
"xalign", 0.0,
"yalign", 0.5,
"max-width-chars", 30,
"ellipsize", PANGO_ELLIPSIZE_END,
NULL);
g_free (desc);
gtk_box_pack_start (GTK_BOX (hbox), label, TRUE, TRUE, 0);
gtk_widget_show (label);
return hbox;
}
return view;
}
static GimpDndType
gimp_dnd_data_type_get_by_g_type (GType type)
{
GimpDndType dnd_type = GIMP_DND_TYPE_NONE;
if (g_type_is_a (type, GIMP_TYPE_IMAGE))
{
dnd_type = GIMP_DND_TYPE_IMAGE;
}
else if (g_type_is_a (type, GIMP_TYPE_LAYER))
{
dnd_type = GIMP_DND_TYPE_LAYER;
}
else if (g_type_is_a (type, GIMP_TYPE_LAYER_MASK))
{
dnd_type = GIMP_DND_TYPE_LAYER_MASK;
}
else if (g_type_is_a (type, GIMP_TYPE_CHANNEL))
{
dnd_type = GIMP_DND_TYPE_CHANNEL;
}
else if (g_type_is_a (type, GIMP_TYPE_VECTORS))
{
dnd_type = GIMP_DND_TYPE_VECTORS;
}
else if (g_type_is_a (type, GIMP_TYPE_BRUSH))
{
dnd_type = GIMP_DND_TYPE_BRUSH;
}
else if (g_type_is_a (type, GIMP_TYPE_PATTERN))
{
dnd_type = GIMP_DND_TYPE_PATTERN;
}
else if (g_type_is_a (type, GIMP_TYPE_GRADIENT))
{
dnd_type = GIMP_DND_TYPE_GRADIENT;
}
else if (g_type_is_a (type, GIMP_TYPE_PALETTE))
{
dnd_type = GIMP_DND_TYPE_PALETTE;
}
else if (g_type_is_a (type, GIMP_TYPE_FONT))
{
dnd_type = GIMP_DND_TYPE_FONT;
}
else if (g_type_is_a (type, GIMP_TYPE_BUFFER))
{
dnd_type = GIMP_DND_TYPE_BUFFER;
}
else if (g_type_is_a (type, GIMP_TYPE_IMAGEFILE))
{
dnd_type = GIMP_DND_TYPE_IMAGEFILE;
}
else if (g_type_is_a (type, GIMP_TYPE_TEMPLATE))
{
dnd_type = GIMP_DND_TYPE_TEMPLATE;
}
else if (g_type_is_a (type, GIMP_TYPE_TOOL_INFO))
{
dnd_type = GIMP_DND_TYPE_TOOL_INFO;
}
return dnd_type;
}
gboolean
gimp_dnd_drag_source_set_by_type (GtkWidget *widget,
GdkModifierType start_button_mask,
GType type,
GdkDragAction actions)
{
GimpDndType dnd_type;
g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
dnd_type = gimp_dnd_data_type_get_by_g_type (type);
if (dnd_type == GIMP_DND_TYPE_NONE)
return FALSE;
gtk_drag_source_set (widget, start_button_mask,
&dnd_data_defs[dnd_type].target_entry, 1,
actions);
return TRUE;
}
gboolean
gimp_dnd_drag_dest_set_by_type (GtkWidget *widget,
GtkDestDefaults flags,
GType type,
GdkDragAction actions)
{
GimpDndType dnd_type;
g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
dnd_type = gimp_dnd_data_type_get_by_g_type (type);
if (dnd_type == GIMP_DND_TYPE_NONE)
return FALSE;
gtk_drag_dest_set (widget, flags,
&dnd_data_defs[dnd_type].target_entry, 1,
actions);
return TRUE;
}
gboolean
gimp_dnd_viewable_source_add (GtkWidget *widget,
GType type,
GimpDndDragViewableFunc get_viewable_func,
gpointer data)
{
GimpDndType dnd_type;
g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
g_return_val_if_fail (get_viewable_func != NULL, FALSE);
dnd_type = gimp_dnd_data_type_get_by_g_type (type);
if (dnd_type == GIMP_DND_TYPE_NONE)
return FALSE;
gimp_dnd_data_source_add (dnd_type, widget,
G_CALLBACK (get_viewable_func),
data);
return TRUE;
}
gboolean
gimp_dnd_viewable_source_remove (GtkWidget *widget,
GType type)
{
GimpDndType dnd_type;
g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
dnd_type = gimp_dnd_data_type_get_by_g_type (type);
if (dnd_type == GIMP_DND_TYPE_NONE)
return FALSE;
return gimp_dnd_data_source_remove (dnd_type, widget);
}
gboolean
gimp_dnd_viewable_dest_add (GtkWidget *widget,
GType type,
GimpDndDropViewableFunc set_viewable_func,
gpointer data)
{
GimpDndType dnd_type;
g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
dnd_type = gimp_dnd_data_type_get_by_g_type (type);
if (dnd_type == GIMP_DND_TYPE_NONE)
return FALSE;
gimp_dnd_data_dest_add (dnd_type, widget,
G_CALLBACK (set_viewable_func),
data);
return TRUE;
}
gboolean
gimp_dnd_viewable_dest_remove (GtkWidget *widget,
GType type)
{
GimpDndType dnd_type;
g_return_val_if_fail (GTK_IS_WIDGET (widget), FALSE);
dnd_type = gimp_dnd_data_type_get_by_g_type (type);
if (dnd_type == GIMP_DND_TYPE_NONE)
return FALSE;
gimp_dnd_data_dest_remove (dnd_type, widget);
return TRUE;
}
GimpViewable *
gimp_dnd_get_drag_data (GtkWidget *widget)
{
const GimpDndDataDef *dnd_data;
GimpDndType data_type;
GimpDndDragViewableFunc get_data_func = NULL;
gpointer get_data_data = NULL;
GimpContext *context;
g_return_val_if_fail (GTK_IS_WIDGET (widget), NULL);
data_type = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget),
"gimp-dnd-get-data-type"));
if (! data_type)
return NULL;
dnd_data = dnd_data_defs + data_type;
if (dnd_data->get_data_func_name)
get_data_func = g_object_get_data (G_OBJECT (widget),
dnd_data->get_data_func_name);
if (dnd_data->get_data_data_name)
get_data_data = g_object_get_data (G_OBJECT (widget),
dnd_data->get_data_data_name);
if (! get_data_func)
return NULL;
return (GimpViewable *) (* get_data_func) (widget, &context, get_data_data);
}
/*****************************/
/* GimpImage dnd functions */
/*****************************/
static void
gimp_dnd_get_image_data (GtkWidget *widget,
GdkDragContext *context,
GCallback get_image_func,
gpointer get_image_data,
GtkSelectionData *selection)
{
GimpImage *image;
GimpContext *gimp_context;
image = g_object_get_data (G_OBJECT (context), "gimp-dnd-viewable");
if (! image)
image = (GimpImage *)
(* (GimpDndDragViewableFunc) get_image_func) (widget, &gimp_context,
get_image_data);
GIMP_LOG (DND, "image %p", image);
if (image)
gimp_selection_data_set_image (selection, image);
}
static gboolean
gimp_dnd_set_image_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_image_func,
gpointer set_image_data,
GtkSelectionData *selection)
{
GimpImage *image = gimp_selection_data_get_image (selection, the_dnd_gimp);
GIMP_LOG (DND, "image %p", image);
if (! image)
return FALSE;
(* (GimpDndDropViewableFunc) set_image_func) (widget, x, y,
GIMP_VIEWABLE (image),
set_image_data);
return TRUE;
}
/****************************/
/* GimpItem dnd functions */
/****************************/
static void
gimp_dnd_get_item_data (GtkWidget *widget,
GdkDragContext *context,
GCallback get_item_func,
gpointer get_item_data,
GtkSelectionData *selection)
{
GimpItem *item;
GimpContext *gimp_context;
item = g_object_get_data (G_OBJECT (context), "gimp-dnd-viewable");
if (! item)
item = (GimpItem *)
(* (GimpDndDragViewableFunc) get_item_func) (widget, &gimp_context,
get_item_data);
GIMP_LOG (DND, "item %p", item);
if (item)
gimp_selection_data_set_item (selection, item);
}
static gboolean
gimp_dnd_set_item_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_item_func,
gpointer set_item_data,
GtkSelectionData *selection)
{
GimpItem *item = gimp_selection_data_get_item (selection, the_dnd_gimp);
GIMP_LOG (DND, "item %p", item);
if (! item)
return FALSE;
(* (GimpDndDropViewableFunc) set_item_func) (widget, x, y,
GIMP_VIEWABLE (item),
set_item_data);
return TRUE;
}
/******************************/
/* GimpObject dnd functions */
/******************************/
static void
gimp_dnd_get_object_data (GtkWidget *widget,
GdkDragContext *context,
GCallback get_object_func,
gpointer get_object_data,
GtkSelectionData *selection)
{
GimpObject *object;
GimpContext *gimp_context;
object = g_object_get_data (G_OBJECT (context), "gimp-dnd-viewable");
if (! object)
object = (GimpObject *)
(* (GimpDndDragViewableFunc) get_object_func) (widget, &gimp_context,
get_object_data);
GIMP_LOG (DND, "object %p", object);
if (GIMP_IS_OBJECT (object))
gimp_selection_data_set_object (selection, object);
}
/*****************************/
/* GimpBrush dnd functions */
/*****************************/
static gboolean
gimp_dnd_set_brush_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_brush_func,
gpointer set_brush_data,
GtkSelectionData *selection)
{
GimpBrush *brush = gimp_selection_data_get_brush (selection, the_dnd_gimp);
GIMP_LOG (DND, "brush %p", brush);
if (! brush)
return FALSE;
(* (GimpDndDropViewableFunc) set_brush_func) (widget, x, y,
GIMP_VIEWABLE (brush),
set_brush_data);
return TRUE;
}
/*******************************/
/* GimpPattern dnd functions */
/*******************************/
static gboolean
gimp_dnd_set_pattern_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_pattern_func,
gpointer set_pattern_data,
GtkSelectionData *selection)
{
GimpPattern *pattern = gimp_selection_data_get_pattern (selection,
the_dnd_gimp);
GIMP_LOG (DND, "pattern %p", pattern);
if (! pattern)
return FALSE;
(* (GimpDndDropViewableFunc) set_pattern_func) (widget, x, y,
GIMP_VIEWABLE (pattern),
set_pattern_data);
return TRUE;
}
/********************************/
/* GimpGradient dnd functions */
/********************************/
static gboolean
gimp_dnd_set_gradient_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_gradient_func,
gpointer set_gradient_data,
GtkSelectionData *selection)
{
GimpGradient *gradient = gimp_selection_data_get_gradient (selection,
the_dnd_gimp);
GIMP_LOG (DND, "gradient %p", gradient);
if (! gradient)
return FALSE;
(* (GimpDndDropViewableFunc) set_gradient_func) (widget, x, y,
GIMP_VIEWABLE (gradient),
set_gradient_data);
return TRUE;
}
/*******************************/
/* GimpPalette dnd functions */
/*******************************/
static gboolean
gimp_dnd_set_palette_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_palette_func,
gpointer set_palette_data,
GtkSelectionData *selection)
{
GimpPalette *palette = gimp_selection_data_get_palette (selection,
the_dnd_gimp);
GIMP_LOG (DND, "palette %p", palette);
if (! palette)
return FALSE;
(* (GimpDndDropViewableFunc) set_palette_func) (widget, x, y,
GIMP_VIEWABLE (palette),
set_palette_data);
return TRUE;
}
/****************************/
/* GimpFont dnd functions */
/****************************/
static gboolean
gimp_dnd_set_font_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_font_func,
gpointer set_font_data,
GtkSelectionData *selection)
{
GimpFont *font = gimp_selection_data_get_font (selection, the_dnd_gimp);
GIMP_LOG (DND, "font %p", font);
if (! font)
return FALSE;
(* (GimpDndDropViewableFunc) set_font_func) (widget, x, y,
GIMP_VIEWABLE (font),
set_font_data);
return TRUE;
}
/******************************/
/* GimpBuffer dnd functions */
/******************************/
static gboolean
gimp_dnd_set_buffer_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_buffer_func,
gpointer set_buffer_data,
GtkSelectionData *selection)
{
GimpBuffer *buffer = gimp_selection_data_get_buffer (selection, the_dnd_gimp);
GIMP_LOG (DND, "buffer %p", buffer);
if (! buffer)
return FALSE;
(* (GimpDndDropViewableFunc) set_buffer_func) (widget, x, y,
GIMP_VIEWABLE (buffer),
set_buffer_data);
return TRUE;
}
/*********************************/
/* GimpImagefile dnd functions */
/*********************************/
static gboolean
gimp_dnd_set_imagefile_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_imagefile_func,
gpointer set_imagefile_data,
GtkSelectionData *selection)
{
GimpImagefile *imagefile = gimp_selection_data_get_imagefile (selection,
the_dnd_gimp);
GIMP_LOG (DND, "imagefile %p", imagefile);
if (! imagefile)
return FALSE;
(* (GimpDndDropViewableFunc) set_imagefile_func) (widget, x, y,
GIMP_VIEWABLE (imagefile),
set_imagefile_data);
return TRUE;
}
/********************************/
/* GimpTemplate dnd functions */
/********************************/
static gboolean
gimp_dnd_set_template_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_template_func,
gpointer set_template_data,
GtkSelectionData *selection)
{
GimpTemplate *template = gimp_selection_data_get_template (selection,
the_dnd_gimp);
GIMP_LOG (DND, "template %p", template);
if (! template)
return FALSE;
(* (GimpDndDropViewableFunc) set_template_func) (widget, x, y,
GIMP_VIEWABLE (template),
set_template_data);
return TRUE;
}
/********************************/
/* GimpToolInfo dnd functions */
/********************************/
static gboolean
gimp_dnd_set_tool_info_data (GtkWidget *widget,
gint x,
gint y,
GCallback set_tool_info_func,
gpointer set_tool_info_data,
GtkSelectionData *selection)
{
GimpToolInfo *tool_info = gimp_selection_data_get_tool_info (selection,
the_dnd_gimp);
GIMP_LOG (DND, "tool_info %p", tool_info);
if (! tool_info)
return FALSE;
(* (GimpDndDropViewableFunc) set_tool_info_func) (widget, x, y,
GIMP_VIEWABLE (tool_info),
set_tool_info_data);
return TRUE;
}
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