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gimp/app/widgets/gimptoolbox-dnd.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <string.h>
#include <gtk/gtk.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "core/gimp.h"
#include "core/gimp-edit.h"
#include "core/gimpbuffer.h"
#include "core/gimpcontext.h"
#include "core/gimpimage.h"
#include "core/gimpimage-colormap.h"
#include "core/gimplayer.h"
#include "core/gimplayermask.h"
#include "core/gimptoolinfo.h"
#include "file/file-open.h"
#include "file/file-utils.h"
#include "gimpdnd.h"
#include "gimptoolbox.h"
#include "gimptoolbox-dnd.h"
#include "gimp-intl.h"
/* local function prototypes */
static void gimp_toolbox_drop_uri_list (GtkWidget *widget,
gint x,
gint y,
GList *uri_list,
gpointer data);
static void gimp_toolbox_drop_drawable (GtkWidget *widget,
gint x,
gint y,
GimpViewable *viewable,
gpointer data);
static void gimp_toolbox_drop_tool (GtkWidget *widget,
gint x,
gint y,
GimpViewable *viewable,
gpointer data);
static void gimp_toolbox_drop_buffer (GtkWidget *widget,
gint x,
gint y,
GimpViewable *viewable,
gpointer data);
static void gimp_toolbox_drop_component (GtkWidget *widget,
gint x,
gint y,
GimpImage *image,
GimpChannelType component,
gpointer data);
static void gimp_toolbox_drop_pixbuf (GtkWidget *widget,
gint x,
gint y,
GdkPixbuf *pixbuf,
gpointer data);
/* public functions */
void
gimp_toolbox_dnd_init (GimpToolbox *toolbox)
{
GimpDock *dock;
g_return_if_fail (GIMP_IS_TOOLBOX (toolbox));
dock = GIMP_DOCK (toolbox);
gimp_dnd_uri_list_dest_add (GTK_WIDGET (toolbox),
gimp_toolbox_drop_uri_list,
dock->context);
gimp_dnd_uri_list_dest_add (toolbox->tool_wbox,
gimp_toolbox_drop_uri_list,
dock->context);
gimp_dnd_viewable_dest_add (toolbox->tool_wbox, GIMP_TYPE_LAYER,
gimp_toolbox_drop_drawable,
dock->context);
gimp_dnd_viewable_dest_add (toolbox->tool_wbox, GIMP_TYPE_LAYER_MASK,
gimp_toolbox_drop_drawable,
dock->context);
gimp_dnd_viewable_dest_add (toolbox->tool_wbox, GIMP_TYPE_CHANNEL,
gimp_toolbox_drop_drawable,
dock->context);
gimp_dnd_viewable_dest_add (toolbox->tool_wbox, GIMP_TYPE_TOOL_INFO,
gimp_toolbox_drop_tool,
dock->context);
gimp_dnd_viewable_dest_add (toolbox->tool_wbox, GIMP_TYPE_BUFFER,
gimp_toolbox_drop_buffer,
dock->context);
gimp_dnd_component_dest_add (toolbox->tool_wbox,
gimp_toolbox_drop_component,
dock->context);
gimp_dnd_pixbuf_dest_add (toolbox->tool_wbox,
gimp_toolbox_drop_pixbuf,
dock->context);
}
/* private functions */
static void
gimp_toolbox_drop_uri_list (GtkWidget *widget,
gint x,
gint y,
GList *uri_list,
gpointer data)
{
GimpContext *context = GIMP_CONTEXT (data);
GList *list;
if (context->gimp->busy)
return;
for (list = uri_list; list; list = g_list_next (list))
{
const gchar *uri = list->data;
GimpImage *image;
GimpPDBStatusType status;
GError *error = NULL;
image = file_open_with_display (context->gimp, context, NULL,
uri, &status, &error);
if (! image && status != GIMP_PDB_CANCEL)
{
gchar *filename = file_utils_uri_display_name (uri);
gimp_message (context->gimp, NULL, GIMP_MESSAGE_ERROR,
_("Opening '%s' failed:\n\n%s"),
filename, error->message);
g_clear_error (&error);
g_free (filename);
}
}
}
static void
gimp_toolbox_drop_drawable (GtkWidget *widget,
gint x,
gint y,
GimpViewable *viewable,
gpointer data)
{
GimpContext *context = GIMP_CONTEXT (data);
GimpDrawable *drawable;
GimpItem *item;
GimpImage *image;
GimpImage *new_image;
GimpLayer *new_layer;
GType new_type;
gint width, height;
gint off_x, off_y;
gint bytes;
GimpImageBaseType type;
if (context->gimp->busy)
return;
drawable = GIMP_DRAWABLE (viewable);
item = GIMP_ITEM (viewable);
image = gimp_item_get_image (item);
width = gimp_item_width (item);
height = gimp_item_height (item);
bytes = gimp_drawable_bytes (drawable);
type = GIMP_IMAGE_TYPE_BASE_TYPE (gimp_drawable_type (drawable));
new_image = gimp_create_image (image->gimp, width, height, type, TRUE);
gimp_image_undo_disable (new_image);
if (type == GIMP_INDEXED)
gimp_image_set_colormap (new_image,
gimp_image_get_colormap (image),
gimp_image_get_colormap_size (image),
FALSE);
gimp_image_set_resolution (new_image, image->xresolution, image->yresolution);
gimp_image_set_unit (new_image, gimp_image_get_unit (image));
if (GIMP_IS_LAYER (drawable))
new_type = G_TYPE_FROM_INSTANCE (drawable);
else
new_type = GIMP_TYPE_LAYER;
new_layer = GIMP_LAYER (gimp_item_convert (GIMP_ITEM (drawable), new_image,
new_type, FALSE));
gimp_object_set_name (GIMP_OBJECT (new_layer),
gimp_object_get_name (GIMP_OBJECT (drawable)));
gimp_item_offsets (GIMP_ITEM (new_layer), &off_x, &off_y);
gimp_item_translate (GIMP_ITEM (new_layer), -off_x, -off_y, FALSE);
gimp_image_add_layer (new_image, new_layer, 0);
gimp_image_undo_enable (new_image);
gimp_create_display (image->gimp, new_image, GIMP_UNIT_PIXEL, 1.0);
g_object_unref (new_image);
}
static void
gimp_toolbox_drop_tool (GtkWidget *widget,
gint x,
gint y,
GimpViewable *viewable,
gpointer data)
{
GimpContext *context = GIMP_CONTEXT (data);
if (context->gimp->busy)
return;
gimp_context_set_tool (context, GIMP_TOOL_INFO (viewable));
}
static void
gimp_toolbox_drop_buffer (GtkWidget *widget,
gint x,
gint y,
GimpViewable *viewable,
gpointer data)
{
GimpContext *context = GIMP_CONTEXT (data);
GimpImage *image;
if (context->gimp->busy)
return;
image = gimp_edit_paste_as_new (context->gimp, NULL, GIMP_BUFFER (viewable));
if (image)
{
gimp_create_display (image->gimp, image, GIMP_UNIT_PIXEL, 1.0);
g_object_unref (image);
}
}
static void
gimp_toolbox_drop_component (GtkWidget *widget,
gint x,
gint y,
GimpImage *image,
GimpChannelType component,
gpointer data)
{
GimpContext *context = GIMP_CONTEXT (data);
GimpChannel *channel;
GimpImage *new_image;
GimpLayer *new_layer;
const gchar *desc;
if (context->gimp->busy)
return;
new_image = gimp_create_image (image->gimp,
gimp_image_get_width (image),
gimp_image_get_height (image),
GIMP_GRAY, TRUE);
gimp_image_undo_disable (new_image);
gimp_image_set_resolution (new_image, image->xresolution, image->yresolution);
gimp_image_set_unit (new_image, gimp_image_get_unit (image));
channel = gimp_channel_new_from_component (image, component, NULL, NULL);
new_layer = GIMP_LAYER (gimp_item_convert (GIMP_ITEM (channel), new_image,
GIMP_TYPE_LAYER, FALSE));
g_object_unref (channel);
gimp_enum_get_value (GIMP_TYPE_CHANNEL_TYPE, component,
NULL, NULL, &desc, NULL);
gimp_object_take_name (GIMP_OBJECT (new_layer),
g_strdup_printf (_("%s Channel Copy"), desc));
gimp_image_add_layer (new_image, new_layer, 0);
gimp_image_undo_enable (new_image);
gimp_create_display (new_image->gimp, new_image, GIMP_UNIT_PIXEL, 1.0);
g_object_unref (new_image);
}
static void
gimp_toolbox_drop_pixbuf (GtkWidget *widget,
gint x,
gint y,
GdkPixbuf *pixbuf,
gpointer data)
{
GimpContext *context = GIMP_CONTEXT (data);
GimpImageType image_type;
GimpImage *new_image;
GimpLayer *new_layer;
if (context->gimp->busy)
return;
switch (gdk_pixbuf_get_n_channels (pixbuf))
{
case 1: image_type = GIMP_GRAY_IMAGE; break;
case 2: image_type = GIMP_GRAYA_IMAGE; break;
case 3: image_type = GIMP_RGB_IMAGE; break;
case 4: image_type = GIMP_RGBA_IMAGE; break;
break;
default:
g_return_if_reached ();
break;
}
new_image = gimp_create_image (context->gimp,
gdk_pixbuf_get_width (pixbuf),
gdk_pixbuf_get_height (pixbuf),
GIMP_IMAGE_TYPE_BASE_TYPE (image_type),
FALSE);
gimp_image_undo_disable (new_image);
new_layer =
gimp_layer_new_from_pixbuf (pixbuf, new_image, image_type,
_("Dropped Buffer"),
GIMP_OPACITY_OPAQUE, GIMP_NORMAL_MODE);
gimp_image_add_layer (new_image, new_layer, 0);
gimp_image_undo_enable (new_image);
gimp_create_display (new_image->gimp, new_image, GIMP_UNIT_PIXEL, 1.0);
g_object_unref (new_image);
}
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