mirror of
https://gitlab.gnome.org/GNOME/gimp
synced 2024-10-23 04:51:44 +00:00
8fc8cb487c
2004-07-07 Michael Natterer <mitch@gimp.org> * app/gui/Makefile.am * app/gui/clipboard.[ch]: removed... * app/widgets/Makefile.am * app/widgets/gimpclipboard.[ch]: ...and added here. * app/actions/edit-commands.c * app/gui/gui.c: changed accordingly.
296 lines
8.1 KiB
C
296 lines
8.1 KiB
C
/* 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 <gtk/gtk.h>
|
|
|
|
#include "widgets-types.h"
|
|
|
|
#include "base/pixel-region.h"
|
|
#include "base/tile-manager.h"
|
|
|
|
#include "core/gimp.h"
|
|
#include "core/gimpbuffer.h"
|
|
#include "core/gimpviewable.h"
|
|
|
|
#include "gimpclipboard.h"
|
|
#include "gimpdnd.h"
|
|
#include "gimpselectiondata.h"
|
|
|
|
#include "gimp-intl.h"
|
|
|
|
|
|
static const GtkTargetEntry target_entry = GIMP_TARGET_PNG;
|
|
|
|
|
|
static void gimp_clipboard_buffer_changed (Gimp *gimp);
|
|
static void gimp_clipboard_set (Gimp *gimp,
|
|
GimpBuffer *buffer);
|
|
|
|
static void gimp_clipboard_get (GtkClipboard *clipboard,
|
|
GtkSelectionData *selection_data,
|
|
guint info,
|
|
Gimp *gimp);
|
|
static gboolean gimp_clipboard_wait_is_available (void);
|
|
|
|
|
|
void
|
|
gimp_clipboard_init (Gimp *gimp)
|
|
{
|
|
g_return_if_fail (GIMP_IS_GIMP (gimp));
|
|
|
|
gimp_clipboard_set (gimp, gimp->global_buffer);
|
|
|
|
g_signal_connect_object (gimp, "buffer_changed",
|
|
G_CALLBACK (gimp_clipboard_buffer_changed),
|
|
NULL, 0);
|
|
}
|
|
|
|
void
|
|
gimp_clipboard_exit (Gimp *gimp)
|
|
{
|
|
g_return_if_fail (GIMP_IS_GIMP (gimp));
|
|
|
|
g_signal_handlers_disconnect_by_func (gimp,
|
|
G_CALLBACK (gimp_clipboard_buffer_changed),
|
|
NULL);
|
|
gimp_clipboard_set (gimp, NULL);
|
|
}
|
|
|
|
/**
|
|
* gimp_clipboard_is_available:
|
|
* @gimp: pointer to #Gimp
|
|
*
|
|
* Tests if there's image data in the clipboard. If the global cut
|
|
* buffer of @gimp is empty, this function checks if there's image
|
|
* data in %GDK_SELECTION_CLIPBOARD. This is done in a main-loop
|
|
* similar to gtk_clipboard_wait_is_text_available(). The same caveats
|
|
* apply here.
|
|
*
|
|
* Return value: %TRUE if there's image data in the clipboard, %FALSE otherwise
|
|
**/
|
|
gboolean
|
|
gimp_clipboard_is_available (Gimp *gimp)
|
|
{
|
|
g_return_val_if_fail (GIMP_IS_GIMP (gimp), FALSE);
|
|
|
|
if (gimp->global_buffer)
|
|
return TRUE;
|
|
|
|
return gimp_clipboard_wait_is_available ();
|
|
}
|
|
|
|
|
|
static TileManager *
|
|
tile_manager_new_from_pixbuf (GdkPixbuf *pixbuf)
|
|
{
|
|
TileManager *tiles;
|
|
guchar *pixels;
|
|
PixelRegion destPR;
|
|
gint width;
|
|
gint height;
|
|
gint rowstride;
|
|
gint channels;
|
|
gint y;
|
|
|
|
g_return_val_if_fail (GDK_IS_PIXBUF (pixbuf), NULL);
|
|
|
|
width = gdk_pixbuf_get_width (pixbuf);
|
|
height = gdk_pixbuf_get_height (pixbuf);
|
|
rowstride = gdk_pixbuf_get_rowstride (pixbuf);
|
|
channels = gdk_pixbuf_get_n_channels (pixbuf);
|
|
|
|
tiles = tile_manager_new (width, height, channels);
|
|
|
|
pixel_region_init (&destPR, tiles, 0, 0, width, height, TRUE);
|
|
|
|
for (y = 0, pixels = gdk_pixbuf_get_pixels (pixbuf);
|
|
y < height;
|
|
y++, pixels += rowstride)
|
|
{
|
|
pixel_region_set_row (&destPR, 0, y, width, pixels);
|
|
}
|
|
|
|
return tiles;
|
|
}
|
|
|
|
/**
|
|
* gimp_clipboard_get_buffer:
|
|
* @gimp: pointer to #Gimp
|
|
*
|
|
* Retrieves either image data from %GDK_SELECTION_CLIPBOARD or from
|
|
* the global cut buffer of @gimp.
|
|
*
|
|
* The returned #GimpBuffer needs to be unref'ed when it's no longer
|
|
* needed.
|
|
*
|
|
* Return value: a reference to a #GimpBuffer or %NULL if there's no
|
|
* image data
|
|
**/
|
|
GimpBuffer *
|
|
gimp_clipboard_get_buffer (Gimp *gimp)
|
|
{
|
|
GimpBuffer *buffer = NULL;
|
|
GtkClipboard *clipboard;
|
|
|
|
g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
|
|
|
|
clipboard = gtk_clipboard_get_for_display (gdk_display_get_default (),
|
|
GDK_SELECTION_CLIPBOARD);
|
|
|
|
if (clipboard &&
|
|
gtk_clipboard_get_owner (clipboard) != G_OBJECT (gimp) &&
|
|
gimp_clipboard_wait_is_available ())
|
|
{
|
|
GtkSelectionData *data;
|
|
GdkAtom atom = gdk_atom_intern (target_entry.target, FALSE);
|
|
|
|
gimp_set_busy (gimp);
|
|
|
|
data = gtk_clipboard_wait_for_contents (clipboard, atom);
|
|
|
|
if (data)
|
|
{
|
|
GdkPixbuf *pixbuf = gimp_selection_data_get_pixbuf (data);
|
|
|
|
gtk_selection_data_free (data);
|
|
|
|
if (pixbuf)
|
|
{
|
|
TileManager *tiles = tile_manager_new_from_pixbuf (pixbuf);
|
|
|
|
g_object_unref (pixbuf);
|
|
|
|
buffer = gimp_buffer_new (tiles, _("Clipboard"), FALSE);
|
|
}
|
|
}
|
|
|
|
gimp_unset_busy (gimp);
|
|
}
|
|
|
|
if (! buffer && gimp->global_buffer)
|
|
buffer = g_object_ref (gimp->global_buffer);
|
|
|
|
return buffer;
|
|
}
|
|
|
|
static void
|
|
gimp_clipboard_buffer_changed (Gimp *gimp)
|
|
{
|
|
gimp_clipboard_set (gimp, gimp->global_buffer);
|
|
}
|
|
|
|
static void
|
|
gimp_clipboard_set (Gimp *gimp,
|
|
GimpBuffer *buffer)
|
|
{
|
|
GtkClipboard *clipboard;
|
|
|
|
clipboard = gtk_clipboard_get_for_display (gdk_display_get_default (),
|
|
GDK_SELECTION_CLIPBOARD);
|
|
if (! clipboard)
|
|
return;
|
|
|
|
if (buffer)
|
|
{
|
|
gtk_clipboard_set_with_owner (clipboard,
|
|
&target_entry, 1,
|
|
(GtkClipboardGetFunc) gimp_clipboard_get,
|
|
(GtkClipboardClearFunc) NULL,
|
|
G_OBJECT (gimp));
|
|
}
|
|
else if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (gimp))
|
|
{
|
|
gtk_clipboard_clear (clipboard);
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gimp_clipboard_wait_is_available (void)
|
|
{
|
|
GtkClipboard *clipboard;
|
|
gboolean result = FALSE;
|
|
|
|
clipboard = gtk_clipboard_get_for_display (gdk_display_get_default (),
|
|
GDK_SELECTION_CLIPBOARD);
|
|
|
|
if (clipboard)
|
|
{
|
|
GtkSelectionData *data;
|
|
|
|
data = gtk_clipboard_wait_for_contents (clipboard,
|
|
gdk_atom_intern ("TARGETS",
|
|
FALSE));
|
|
if (data)
|
|
{
|
|
GdkAtom *targets;
|
|
gint n_targets;
|
|
|
|
if (gtk_selection_data_get_targets (data, &targets, &n_targets))
|
|
{
|
|
GdkAtom atom = gdk_atom_intern (target_entry.target, FALSE);
|
|
gint i;
|
|
|
|
for (i = 0; i < n_targets; i++)
|
|
{
|
|
g_print ("offered type: %s\n", gdk_atom_name (targets[i]));
|
|
|
|
if (targets[i] == atom)
|
|
result = TRUE;
|
|
}
|
|
|
|
g_free (targets);
|
|
}
|
|
|
|
gtk_selection_data_free (data);
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
static void
|
|
gimp_clipboard_get (GtkClipboard *clipboard,
|
|
GtkSelectionData *selection_data,
|
|
guint info,
|
|
Gimp *gimp)
|
|
{
|
|
GimpBuffer *buffer = gimp->global_buffer;
|
|
GdkPixbuf *pixbuf;
|
|
|
|
gimp_set_busy (gimp);
|
|
|
|
pixbuf = gimp_viewable_get_pixbuf (GIMP_VIEWABLE (buffer),
|
|
gimp_buffer_get_width (buffer),
|
|
gimp_buffer_get_height (buffer));
|
|
|
|
if (pixbuf)
|
|
{
|
|
GdkAtom atom = gdk_atom_intern (target_entry.target, FALSE);
|
|
|
|
gimp_selection_data_set_pixbuf (selection_data, atom, pixbuf);
|
|
}
|
|
else
|
|
{
|
|
g_warning ("%s: gimp_viewable_get_pixbuf() failed", G_STRFUNC);
|
|
}
|
|
|
|
gimp_unset_busy (gimp);
|
|
}
|