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-rw-r--r--app/widgets/gimpclipboard.c1293
1 files changed, 1293 insertions, 0 deletions
diff --git a/app/widgets/gimpclipboard.c b/app/widgets/gimpclipboard.c
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+++ b/app/widgets/gimpclipboard.c
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+/* GIMP - The GNU 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 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 <string.h>
+
+#include <gegl.h>
+#include <gtk/gtk.h>
+
+#include "libgimpmath/gimpmath.h"
+
+#include "widgets-types.h"
+
+#include "core/gimp.h"
+#include "core/gimpbuffer.h"
+#include "core/gimpcurve.h"
+#include "core/gimpimage.h"
+#include "core/gimppickable.h"
+
+#include "gimpclipboard.h"
+#include "gimppixbuf.h"
+#include "gimpselectiondata.h"
+
+#include "gimp-intl.h"
+
+
+#define GIMP_CLIPBOARD_KEY "gimp-clipboard"
+
+
+typedef struct _GimpClipboard GimpClipboard;
+
+struct _GimpClipboard
+{
+ GSList *pixbuf_formats;
+
+ GtkTargetEntry *image_target_entries;
+ gint n_image_target_entries;
+
+ GtkTargetEntry *buffer_target_entries;
+ gint n_buffer_target_entries;
+
+ GtkTargetEntry *svg_target_entries;
+ gint n_svg_target_entries;
+
+ GtkTargetEntry *curve_target_entries;
+ gint n_curve_target_entries;
+
+ GimpImage *image;
+ GimpBuffer *buffer;
+ gchar *svg;
+ GimpCurve *curve;
+};
+
+
+static GimpClipboard * gimp_clipboard_get (Gimp *gimp);
+
+static GimpClipboard * gimp_clipboard_new (gboolean verbose);
+static void gimp_clipboard_free (GimpClipboard *gimp_clip);
+
+static void gimp_clipboard_clear (GimpClipboard *gimp_clip);
+
+static GdkAtom * gimp_clipboard_wait_for_targets (Gimp *gimp,
+ gint *n_targets);
+static GdkAtom gimp_clipboard_wait_for_image (Gimp *gimp);
+static GdkAtom gimp_clipboard_wait_for_buffer (Gimp *gimp);
+static GdkAtom gimp_clipboard_wait_for_svg (Gimp *gimp);
+static GdkAtom gimp_clipboard_wait_for_curve (Gimp *gimp);
+
+static void gimp_clipboard_send_image (GtkClipboard *clipboard,
+ GtkSelectionData *data,
+ guint info,
+ Gimp *gimp);
+static void gimp_clipboard_send_buffer (GtkClipboard *clipboard,
+ GtkSelectionData *data,
+ guint info,
+ Gimp *gimp);
+static void gimp_clipboard_send_svg (GtkClipboard *clipboard,
+ GtkSelectionData *data,
+ guint info,
+ Gimp *gimp);
+static void gimp_clipboard_send_curve (GtkClipboard *clipboard,
+ GtkSelectionData *data,
+ guint info,
+ Gimp *gimp);
+
+
+/* public functions */
+
+void
+gimp_clipboard_init (Gimp *gimp)
+{
+ GimpClipboard *gimp_clip;
+
+ g_return_if_fail (GIMP_IS_GIMP (gimp));
+
+ gimp_clip = gimp_clipboard_get (gimp);
+
+ g_return_if_fail (gimp_clip == NULL);
+
+ gimp_clip = gimp_clipboard_new (gimp->be_verbose);
+
+ g_object_set_data_full (G_OBJECT (gimp), GIMP_CLIPBOARD_KEY,
+ gimp_clip, (GDestroyNotify) gimp_clipboard_free);
+}
+
+void
+gimp_clipboard_exit (Gimp *gimp)
+{
+ GtkClipboard *clipboard;
+
+ g_return_if_fail (GIMP_IS_GIMP (gimp));
+
+ clipboard = gtk_clipboard_get_for_display (gdk_display_get_default (),
+ GDK_SELECTION_CLIPBOARD);
+
+ if (clipboard &&
+ gtk_clipboard_get_owner (clipboard) == G_OBJECT (gimp))
+ {
+ gtk_clipboard_store (clipboard);
+ }
+
+ if (clipboard)
+ /* If we don't clear the clipboard, it keeps a reference on the object
+ * owner (i.e. Gimp object probably) which fails to finalize.
+ */
+ gtk_clipboard_clear (clipboard);
+
+ g_object_set_data (G_OBJECT (gimp), GIMP_CLIPBOARD_KEY, NULL);
+}
+
+/**
+ * gimp_clipboard_has_image:
+ * @gimp: pointer to #Gimp
+ *
+ * Tests if there's an image in the clipboard. If the global image cut
+ * buffer of @gimp is empty, this function returns %NULL.
+ *
+ * Return value: %TRUE if there's an image in the clipboard, %FALSE otherwise
+ **/
+gboolean
+gimp_clipboard_has_image (Gimp *gimp)
+{
+ GimpClipboard *gimp_clip;
+ GtkClipboard *clipboard;
+
+ g_return_val_if_fail (GIMP_IS_GIMP (gimp), FALSE);
+
+ clipboard = gtk_clipboard_get_for_display (gdk_display_get_default (),
+ GDK_SELECTION_CLIPBOARD);
+
+ if (clipboard &&
+ gtk_clipboard_get_owner (clipboard) != G_OBJECT (gimp))
+ {
+ if (gimp_clipboard_wait_for_image (gimp) != GDK_NONE)
+ {
+ return TRUE;
+ }
+
+ return FALSE;
+ }
+
+ gimp_clip = gimp_clipboard_get (gimp);
+
+ return (gimp_clip->image != NULL);
+}
+
+/**
+ * gimp_clipboard_has_buffer:
+ * @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_has_buffer (Gimp *gimp)
+{
+ GimpClipboard *gimp_clip;
+ GtkClipboard *clipboard;
+
+ g_return_val_if_fail (GIMP_IS_GIMP (gimp), FALSE);
+
+ clipboard = gtk_clipboard_get_for_display (gdk_display_get_default (),
+ GDK_SELECTION_CLIPBOARD);
+
+ if (clipboard &&
+ gtk_clipboard_get_owner (clipboard) != G_OBJECT (gimp))
+ {
+ if (gimp_clipboard_wait_for_buffer (gimp) != GDK_NONE)
+ {
+ return TRUE;
+ }
+
+ return FALSE;
+ }
+
+ gimp_clip = gimp_clipboard_get (gimp);
+
+ return (gimp_clip->buffer != NULL);
+}
+
+/**
+ * gimp_clipboard_has_svg:
+ * @gimp: pointer to #Gimp
+ *
+ * Tests if there's SVG 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 SVG data in the clipboard, %FALSE otherwise
+ **/
+gboolean
+gimp_clipboard_has_svg (Gimp *gimp)
+{
+ GimpClipboard *gimp_clip;
+ GtkClipboard *clipboard;
+
+ g_return_val_if_fail (GIMP_IS_GIMP (gimp), FALSE);
+
+ clipboard = gtk_clipboard_get_for_display (gdk_display_get_default (),
+ GDK_SELECTION_CLIPBOARD);
+
+ if (clipboard &&
+ gtk_clipboard_get_owner (clipboard) != G_OBJECT (gimp))
+ {
+ if (gimp_clipboard_wait_for_svg (gimp) != GDK_NONE)
+ {
+ return TRUE;
+ }
+
+ return FALSE;
+ }
+
+ gimp_clip = gimp_clipboard_get (gimp);
+
+ return (gimp_clip->svg != NULL);
+}
+
+/**
+ * gimp_clipboard_has_curve:
+ * @gimp: pointer to #Gimp
+ *
+ * Tests if there's curve 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 curve data in the clipboard, %FALSE otherwise
+ **/
+gboolean
+gimp_clipboard_has_curve (Gimp *gimp)
+{
+ GimpClipboard *gimp_clip;
+ GtkClipboard *clipboard;
+
+ g_return_val_if_fail (GIMP_IS_GIMP (gimp), FALSE);
+
+ clipboard = gtk_clipboard_get_for_display (gdk_display_get_default (),
+ GDK_SELECTION_CLIPBOARD);
+
+ if (clipboard &&
+ gtk_clipboard_get_owner (clipboard) != G_OBJECT (gimp))
+ {
+ if (gimp_clipboard_wait_for_curve (gimp) != GDK_NONE)
+ {
+ return TRUE;
+ }
+
+ return FALSE;
+ }
+
+ gimp_clip = gimp_clipboard_get (gimp);
+
+ return (gimp_clip->curve != NULL);
+}
+
+/**
+ * gimp_clipboard_get_object:
+ * @gimp: pointer to #Gimp
+ *
+ * Retrieves either an image or a buffer from the global image cut
+ * buffer of @gimp.
+ *
+ * The returned #GimpObject needs to be unref'ed when it's no longer
+ * needed.
+ *
+ * Return value: a reference to a #GimpObject or %NULL if there's no
+ * image or buffer in the clipboard
+ **/
+GimpObject *
+gimp_clipboard_get_object (Gimp *gimp)
+{
+ GimpObject *object;
+
+ g_return_val_if_fail (GIMP_IS_GIMP (gimp), FALSE);
+
+ object = GIMP_OBJECT (gimp_clipboard_get_image (gimp));
+
+ if (! object)
+ object = GIMP_OBJECT (gimp_clipboard_get_buffer (gimp));
+
+ return object;
+}
+
+/**
+ * gimp_clipboard_get_image:
+ * @gimp: pointer to #Gimp
+ *
+ * Retrieves an image from the global image cut buffer of @gimp.
+ *
+ * The returned #GimpImage needs to be unref'ed when it's no longer
+ * needed.
+ *
+ * Return value: a reference to a #GimpImage or %NULL if there's no
+ * image in the clipboard
+ **/
+GimpImage *
+gimp_clipboard_get_image (Gimp *gimp)
+{
+ GimpClipboard *gimp_clip;
+ GtkClipboard *clipboard;
+ GimpImage *image = NULL;
+
+ 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))
+ {
+ GdkAtom atom = gimp_clipboard_wait_for_image (gimp);
+
+ if (atom != GDK_NONE)
+ {
+ GtkSelectionData *data;
+
+ gimp_set_busy (gimp);
+
+ data = gtk_clipboard_wait_for_contents (clipboard, atom);
+
+ if (data)
+ {
+ image = gimp_selection_data_get_xcf (data, gimp);
+
+ gtk_selection_data_free (data);
+ }
+
+ gimp_unset_busy (gimp);
+ }
+
+ return image;
+ }
+
+ gimp_clip = gimp_clipboard_get (gimp);
+
+ if (! image && gimp_clip->image)
+ image = g_object_ref (gimp_clip->image);
+
+ return image;
+}
+
+/**
+ * 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)
+{
+ GimpClipboard *gimp_clip;
+ GtkClipboard *clipboard;
+ GimpBuffer *buffer = NULL;
+
+ 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))
+ {
+ GdkAtom atom = gimp_clipboard_wait_for_buffer (gimp);
+
+ if (atom != GDK_NONE)
+ {
+ GtkSelectionData *data;
+
+ gimp_set_busy (gimp);
+
+ data = gtk_clipboard_wait_for_contents (clipboard, atom);
+
+ if (data)
+ {
+ GdkPixbuf *pixbuf = gtk_selection_data_get_pixbuf (data);
+
+ gtk_selection_data_free (data);
+
+ if (pixbuf)
+ {
+ buffer = gimp_buffer_new_from_pixbuf (pixbuf, _("Clipboard"),
+ 0, 0);
+ g_object_unref (pixbuf);
+ }
+ }
+
+ gimp_unset_busy (gimp);
+ }
+
+ return buffer;
+ }
+
+ gimp_clip = gimp_clipboard_get (gimp);
+
+ if (! buffer && gimp_clip->buffer)
+ buffer = g_object_ref (gimp_clip->buffer);
+
+ return buffer;
+}
+
+/**
+ * gimp_clipboard_get_svg:
+ * @gimp: pointer to #Gimp
+ * @svg_length: returns the size of the SVG stream in bytes
+ *
+ * Retrieves SVG data from %GDK_SELECTION_CLIPBOARD or from the global
+ * SVG buffer of @gimp.
+ *
+ * The returned data needs to be freed when it's no longer needed.
+ *
+ * Return value: a reference to a #GimpBuffer or %NULL if there's no
+ * image data
+ **/
+gchar *
+gimp_clipboard_get_svg (Gimp *gimp,
+ gsize *svg_length)
+{
+ GimpClipboard *gimp_clip;
+ GtkClipboard *clipboard;
+ gchar *svg = NULL;
+
+ g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
+ g_return_val_if_fail (svg_length != NULL, NULL);
+
+ *svg_length = 0;
+
+ clipboard = gtk_clipboard_get_for_display (gdk_display_get_default (),
+ GDK_SELECTION_CLIPBOARD);
+
+ if (clipboard &&
+ gtk_clipboard_get_owner (clipboard) != G_OBJECT (gimp))
+ {
+ GdkAtom atom = gimp_clipboard_wait_for_svg (gimp);
+
+ if (atom != GDK_NONE)
+ {
+ GtkSelectionData *data;
+
+ gimp_set_busy (gimp);
+
+ data = gtk_clipboard_wait_for_contents (clipboard, atom);
+
+ if (data)
+ {
+ const guchar *stream;
+
+ stream = gimp_selection_data_get_stream (data, svg_length);
+
+ if (stream)
+ svg = g_memdup (stream, *svg_length);
+
+ gtk_selection_data_free (data);
+ }
+
+ gimp_unset_busy (gimp);
+ }
+
+ return svg;
+ }
+
+ gimp_clip = gimp_clipboard_get (gimp);
+
+ if (! svg && gimp_clip->svg)
+ {
+ svg = g_strdup (gimp_clip->svg);
+ *svg_length = strlen (svg);
+ }
+
+ return svg;
+}
+
+/**
+ * gimp_clipboard_get_curve:
+ * @gimp: pointer to #Gimp
+ *
+ * Retrieves curve data from %GDK_SELECTION_CLIPBOARD or from the global
+ * curve buffer of @gimp.
+ *
+ * The returned curve needs to be unref'ed when it's no longer needed.
+ *
+ * Return value: a reference to a #GimpCurve or %NULL if there's no
+ * curve data
+ **/
+GimpCurve *
+gimp_clipboard_get_curve (Gimp *gimp)
+{
+ GimpClipboard *gimp_clip;
+ GtkClipboard *clipboard;
+ GimpCurve *curve = NULL;
+
+ 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))
+ {
+ GdkAtom atom = gimp_clipboard_wait_for_curve (gimp);
+
+ if (atom != GDK_NONE)
+ {
+ GtkSelectionData *data;
+
+ gimp_set_busy (gimp);
+
+ data = gtk_clipboard_wait_for_contents (clipboard, atom);
+
+ if (data)
+ {
+ curve = gimp_selection_data_get_curve (data);
+
+ gtk_selection_data_free (data);
+ }
+
+ gimp_unset_busy (gimp);
+ }
+
+ return curve;
+ }
+
+ gimp_clip = gimp_clipboard_get (gimp);
+
+ if (! curve && gimp_clip->curve)
+ curve = g_object_ref (gimp_clip->curve);
+
+ return curve;
+}
+
+/**
+ * gimp_clipboard_set_image:
+ * @gimp: pointer to #Gimp
+ * @image: a #GimpImage, or %NULL.
+ *
+ * Offers the image in %GDK_SELECTION_CLIPBOARD.
+ **/
+void
+gimp_clipboard_set_image (Gimp *gimp,
+ GimpImage *image)
+{
+ GimpClipboard *gimp_clip;
+ GtkClipboard *clipboard;
+
+ g_return_if_fail (GIMP_IS_GIMP (gimp));
+ g_return_if_fail (image == NULL || GIMP_IS_IMAGE (image));
+
+ clipboard = gtk_clipboard_get_for_display (gdk_display_get_default (),
+ GDK_SELECTION_CLIPBOARD);
+ if (! clipboard)
+ return;
+
+ gimp_clip = gimp_clipboard_get (gimp);
+
+ gimp_clipboard_clear (gimp_clip);
+
+ if (image)
+ {
+ gimp_clip->image = g_object_ref (image);
+
+ gtk_clipboard_set_with_owner (clipboard,
+ gimp_clip->image_target_entries,
+ gimp_clip->n_image_target_entries,
+ (GtkClipboardGetFunc) gimp_clipboard_send_image,
+ (GtkClipboardClearFunc) NULL,
+ G_OBJECT (gimp));
+
+ /* mark the first two entries (image/x-xcf and image/png) as
+ * suitable for storing
+ */
+ gtk_clipboard_set_can_store (clipboard,
+ gimp_clip->image_target_entries,
+ MIN (2, gimp_clip->n_image_target_entries));
+ }
+ else if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (gimp))
+ {
+ gtk_clipboard_clear (clipboard);
+ }
+}
+
+/**
+ * gimp_clipboard_set_buffer:
+ * @gimp: pointer to #Gimp
+ * @buffer: a #GimpBuffer, or %NULL.
+ *
+ * Offers the buffer in %GDK_SELECTION_CLIPBOARD.
+ **/
+void
+gimp_clipboard_set_buffer (Gimp *gimp,
+ GimpBuffer *buffer)
+{
+ GimpClipboard *gimp_clip;
+ GtkClipboard *clipboard;
+
+ g_return_if_fail (GIMP_IS_GIMP (gimp));
+ g_return_if_fail (buffer == NULL || GIMP_IS_BUFFER (buffer));
+
+ clipboard = gtk_clipboard_get_for_display (gdk_display_get_default (),
+ GDK_SELECTION_CLIPBOARD);
+ if (! clipboard)
+ return;
+
+ gimp_clip = gimp_clipboard_get (gimp);
+
+ gimp_clipboard_clear (gimp_clip);
+
+ if (buffer)
+ {
+ gimp_clip->buffer = g_object_ref (buffer);
+
+ gtk_clipboard_set_with_owner (clipboard,
+ gimp_clip->buffer_target_entries,
+ gimp_clip->n_buffer_target_entries,
+ (GtkClipboardGetFunc) gimp_clipboard_send_buffer,
+ (GtkClipboardClearFunc) NULL,
+ G_OBJECT (gimp));
+
+ /* mark the first entry (image/png) as suitable for storing */
+ if (gimp_clip->n_buffer_target_entries > 0)
+ gtk_clipboard_set_can_store (clipboard,
+ gimp_clip->buffer_target_entries, 1);
+ }
+ else if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (gimp))
+ {
+ gtk_clipboard_clear (clipboard);
+ }
+}
+
+/**
+ * gimp_clipboard_set_svg:
+ * @gimp: pointer to #Gimp
+ * @svg: a string containing the SVG data, or %NULL
+ *
+ * Offers SVG data in %GDK_SELECTION_CLIPBOARD.
+ **/
+void
+gimp_clipboard_set_svg (Gimp *gimp,
+ const gchar *svg)
+{
+ GimpClipboard *gimp_clip;
+ GtkClipboard *clipboard;
+
+ g_return_if_fail (GIMP_IS_GIMP (gimp));
+
+ clipboard = gtk_clipboard_get_for_display (gdk_display_get_default (),
+ GDK_SELECTION_CLIPBOARD);
+ if (! clipboard)
+ return;
+
+ gimp_clip = gimp_clipboard_get (gimp);
+
+ gimp_clipboard_clear (gimp_clip);
+
+ if (svg)
+ {
+ gimp_clip->svg = g_strdup (svg);
+
+ gtk_clipboard_set_with_owner (clipboard,
+ gimp_clip->svg_target_entries,
+ gimp_clip->n_svg_target_entries,
+ (GtkClipboardGetFunc) gimp_clipboard_send_svg,
+ (GtkClipboardClearFunc) NULL,
+ G_OBJECT (gimp));
+
+ /* mark the first entry (image/svg) as suitable for storing */
+ gtk_clipboard_set_can_store (clipboard,
+ gimp_clip->svg_target_entries, 1);
+ }
+ else if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (gimp))
+ {
+ gtk_clipboard_clear (clipboard);
+ }
+}
+
+/**
+ * gimp_clipboard_set_text:
+ * @gimp: pointer to #Gimp
+ * @text: a %NULL-terminated string in UTF-8 encoding
+ *
+ * Offers @text in %GDK_SELECTION_CLIPBOARD and %GDK_SELECTION_PRIMARY.
+ **/
+void
+gimp_clipboard_set_text (Gimp *gimp,
+ const gchar *text)
+{
+ GtkClipboard *clipboard;
+
+ g_return_if_fail (GIMP_IS_GIMP (gimp));
+ g_return_if_fail (text != NULL);
+
+ gimp_clipboard_clear (gimp_clipboard_get (gimp));
+
+ clipboard = gtk_clipboard_get_for_display (gdk_display_get_default (),
+ GDK_SELECTION_CLIPBOARD);
+ if (clipboard)
+ gtk_clipboard_set_text (clipboard, text, -1);
+
+ clipboard = gtk_clipboard_get_for_display (gdk_display_get_default (),
+ GDK_SELECTION_PRIMARY);
+ if (clipboard)
+ gtk_clipboard_set_text (clipboard, text, -1);
+}
+
+/**
+ * gimp_clipboard_set_curve:
+ * @gimp: pointer to #Gimp
+ * @curve: a #GimpCurve, or %NULL
+ *
+ * Offers curve data in %GDK_SELECTION_CLIPBOARD.
+ **/
+void
+gimp_clipboard_set_curve (Gimp *gimp,
+ GimpCurve *curve)
+{
+ GimpClipboard *gimp_clip;
+ GtkClipboard *clipboard;
+
+ g_return_if_fail (GIMP_IS_GIMP (gimp));
+ g_return_if_fail (curve == NULL || GIMP_IS_CURVE (curve));
+
+ clipboard = gtk_clipboard_get_for_display (gdk_display_get_default (),
+ GDK_SELECTION_CLIPBOARD);
+ if (! clipboard)
+ return;
+
+ gimp_clip = gimp_clipboard_get (gimp);
+
+ gimp_clipboard_clear (gimp_clip);
+
+ if (curve)
+ {
+ gimp_clip->curve = g_object_ref (curve);
+
+ gtk_clipboard_set_with_owner (clipboard,
+ gimp_clip->curve_target_entries,
+ gimp_clip->n_curve_target_entries,
+ (GtkClipboardGetFunc) gimp_clipboard_send_curve,
+ (GtkClipboardClearFunc) NULL,
+ G_OBJECT (gimp));
+
+ gtk_clipboard_set_can_store (clipboard,
+ gimp_clip->curve_target_entries, 1);
+ }
+ else if (gtk_clipboard_get_owner (clipboard) == G_OBJECT (gimp))
+ {
+ gtk_clipboard_clear (clipboard);
+ }
+}
+
+
+/* private functions */
+
+static GimpClipboard *
+gimp_clipboard_get (Gimp *gimp)
+{
+ return g_object_get_data (G_OBJECT (gimp), GIMP_CLIPBOARD_KEY);
+}
+
+static GimpClipboard *
+gimp_clipboard_new (gboolean verbose)
+{
+ GimpClipboard *gimp_clip = g_slice_new0 (GimpClipboard);
+ GSList *list;
+
+ gimp_clip->pixbuf_formats = gimp_pixbuf_get_formats ();
+
+ for (list = gimp_clip->pixbuf_formats; list; list = g_slist_next (list))
+ {
+ GdkPixbufFormat *format = list->data;
+
+ if (gdk_pixbuf_format_is_writable (format))
+ {
+ gchar **mime_types;
+ gchar **type;
+
+ mime_types = gdk_pixbuf_format_get_mime_types (format);
+
+ for (type = mime_types; *type; type++)
+ gimp_clip->n_buffer_target_entries++;
+
+ g_strfreev (mime_types);
+ }
+ }
+
+ /* the image_target_entries have the XCF target, and all pixbuf
+ * targets that are also in buffer_target_entries
+ */
+ gimp_clip->n_image_target_entries = gimp_clip->n_buffer_target_entries + 1;
+ gimp_clip->image_target_entries = g_new0 (GtkTargetEntry,
+ gimp_clip->n_image_target_entries);
+
+ gimp_clip->image_target_entries[0].target = g_strdup ("image/x-xcf");
+ gimp_clip->image_target_entries[0].flags = 0;
+ gimp_clip->image_target_entries[0].info = 0;
+
+ if (gimp_clip->n_buffer_target_entries > 0)
+ {
+ gint i = 0;
+
+ gimp_clip->buffer_target_entries = g_new0 (GtkTargetEntry,
+ gimp_clip->n_buffer_target_entries);
+
+ for (list = gimp_clip->pixbuf_formats; list; list = g_slist_next (list))
+ {
+ GdkPixbufFormat *format = list->data;
+
+ if (gdk_pixbuf_format_is_writable (format))
+ {
+ gchar *format_name;
+ gchar **mime_types;
+ gchar **type;
+
+ format_name = gdk_pixbuf_format_get_name (format);
+ mime_types = gdk_pixbuf_format_get_mime_types (format);
+
+ for (type = mime_types; *type; type++)
+ {
+ const gchar *mime_type = *type;
+
+ if (verbose)
+ g_printerr ("clipboard: writable pixbuf format: %s\n",
+ mime_type);
+
+ gimp_clip->image_target_entries[i + 1].target = g_strdup (mime_type);
+ gimp_clip->image_target_entries[i + 1].flags = 0;
+ gimp_clip->image_target_entries[i + 1].info = i + 1;
+
+ gimp_clip->buffer_target_entries[i].target = g_strdup (mime_type);
+ gimp_clip->buffer_target_entries[i].flags = 0;
+ gimp_clip->buffer_target_entries[i].info = i;
+
+ i++;
+ }
+
+ g_strfreev (mime_types);
+ g_free (format_name);
+ }
+ }
+ }
+
+ gimp_clip->n_svg_target_entries = 2;
+ gimp_clip->svg_target_entries = g_new0 (GtkTargetEntry, 2);
+
+ gimp_clip->svg_target_entries[0].target = g_strdup ("image/svg");
+ gimp_clip->svg_target_entries[0].flags = 0;
+ gimp_clip->svg_target_entries[0].info = 0;
+
+ gimp_clip->svg_target_entries[1].target = g_strdup ("image/svg+xml");
+ gimp_clip->svg_target_entries[1].flags = 0;
+ gimp_clip->svg_target_entries[1].info = 1;
+
+ gimp_clip->n_curve_target_entries = 1;
+ gimp_clip->curve_target_entries = g_new0 (GtkTargetEntry, 1);
+
+ gimp_clip->curve_target_entries[0].target = g_strdup ("application/x-gimp-curve");
+ gimp_clip->curve_target_entries[0].flags = 0;
+ gimp_clip->curve_target_entries[0].info = 0;
+
+ return gimp_clip;
+}
+
+static void
+gimp_clipboard_free (GimpClipboard *gimp_clip)
+{
+ gint i;
+
+ gimp_clipboard_clear (gimp_clip);
+
+ g_slist_free (gimp_clip->pixbuf_formats);
+
+ for (i = 0; i < gimp_clip->n_image_target_entries; i++)
+ g_free ((gchar *) gimp_clip->image_target_entries[i].target);
+
+ g_free (gimp_clip->image_target_entries);
+
+ for (i = 0; i < gimp_clip->n_buffer_target_entries; i++)
+ g_free ((gchar *) gimp_clip->buffer_target_entries[i].target);
+
+ g_free (gimp_clip->buffer_target_entries);
+
+ for (i = 0; i < gimp_clip->n_svg_target_entries; i++)
+ g_free ((gchar *) gimp_clip->svg_target_entries[i].target);
+
+ g_free (gimp_clip->svg_target_entries);
+
+ for (i = 0; i < gimp_clip->n_curve_target_entries; i++)
+ g_free ((gchar *) gimp_clip->curve_target_entries[i].target);
+
+ g_free (gimp_clip->curve_target_entries);
+
+ g_slice_free (GimpClipboard, gimp_clip);
+}
+
+static void
+gimp_clipboard_clear (GimpClipboard *gimp_clip)
+{
+ g_clear_object (&gimp_clip->image);
+ g_clear_object (&gimp_clip->buffer);
+ g_clear_pointer (&gimp_clip->svg, g_free);
+ g_clear_object (&gimp_clip->curve);
+}
+
+static GdkAtom *
+gimp_clipboard_wait_for_targets (Gimp *gimp,
+ gint *n_targets)
+{
+ GtkClipboard *clipboard;
+
+ clipboard = gtk_clipboard_get_for_display (gdk_display_get_default (),
+ GDK_SELECTION_CLIPBOARD);
+
+ if (clipboard)
+ {
+ GtkSelectionData *data;
+ GdkAtom atom = gdk_atom_intern_static_string ("TARGETS");
+
+ data = gtk_clipboard_wait_for_contents (clipboard, atom);
+
+ if (data)
+ {
+ GdkAtom *targets;
+ gboolean success;
+
+ success = gtk_selection_data_get_targets (data, &targets, n_targets);
+
+ gtk_selection_data_free (data);
+
+ if (success)
+ {
+ if (gimp->be_verbose)
+ {
+ gint i;
+
+ for (i = 0; i < *n_targets; i++)
+ g_printerr ("clipboard: offered type: %s\n",
+ gdk_atom_name (targets[i]));
+
+ g_printerr ("\n");
+ }
+
+ return targets;
+ }
+ }
+ }
+
+ return NULL;
+}
+
+static GdkAtom
+gimp_clipboard_wait_for_image (Gimp *gimp)
+{
+ GdkAtom *targets;
+ gint n_targets;
+ GdkAtom result = GDK_NONE;
+
+ targets = gimp_clipboard_wait_for_targets (gimp, &n_targets);
+
+ if (targets)
+ {
+ GdkAtom image_atom = gdk_atom_intern_static_string ("image/x-xcf");
+ gint i;
+
+ for (i = 0; i < n_targets; i++)
+ {
+ if (targets[i] == image_atom)
+ {
+ result = image_atom;
+ break;
+ }
+ }
+
+ g_free (targets);
+ }
+
+ return result;
+}
+
+static GdkAtom
+gimp_clipboard_wait_for_buffer (Gimp *gimp)
+{
+ GimpClipboard *gimp_clip = gimp_clipboard_get (gimp);
+ GdkAtom *targets;
+ gint n_targets;
+ GdkAtom result = GDK_NONE;
+
+ targets = gimp_clipboard_wait_for_targets (gimp, &n_targets);
+
+ if (targets)
+ {
+ GSList *list;
+
+ for (list = gimp_clip->pixbuf_formats; list; list = g_slist_next (list))
+ {
+ GdkPixbufFormat *format = list->data;
+ gchar **mime_types;
+ gchar **type;
+
+ if (gimp->be_verbose)
+ g_printerr ("clipboard: checking pixbuf format '%s'\n",
+ gdk_pixbuf_format_get_name (format));
+
+ mime_types = gdk_pixbuf_format_get_mime_types (format);
+
+ for (type = mime_types; *type; type++)
+ {
+ gchar *mime_type = *type;
+ GdkAtom atom = gdk_atom_intern (mime_type, FALSE);
+ gint i;
+
+ if (gimp->be_verbose)
+ g_printerr (" - checking mime type '%s'\n", mime_type);
+
+ for (i = 0; i < n_targets; i++)
+ {
+ if (targets[i] == atom)
+ {
+ result = atom;
+ break;
+ }
+ }
+
+ if (result != GDK_NONE)
+ break;
+ }
+
+ g_strfreev (mime_types);
+
+ if (result != GDK_NONE)
+ break;
+ }
+
+ g_free (targets);
+ }
+
+ return result;
+}
+
+static GdkAtom
+gimp_clipboard_wait_for_svg (Gimp *gimp)
+{
+ GdkAtom *targets;
+ gint n_targets;
+ GdkAtom result = GDK_NONE;
+
+ targets = gimp_clipboard_wait_for_targets (gimp, &n_targets);
+
+ if (targets)
+ {
+ GdkAtom svg_atom = gdk_atom_intern_static_string ("image/svg");
+ GdkAtom svg_xml_atom = gdk_atom_intern_static_string ("image/svg+xml");
+ gint i;
+
+ for (i = 0; i < n_targets; i++)
+ {
+ if (targets[i] == svg_atom)
+ {
+ result = svg_atom;
+ break;
+ }
+ else if (targets[i] == svg_xml_atom)
+ {
+ result = svg_xml_atom;
+ break;
+ }
+ }
+
+ g_free (targets);
+ }
+
+ return result;
+}
+
+static GdkAtom
+gimp_clipboard_wait_for_curve (Gimp *gimp)
+{
+ GdkAtom *targets;
+ gint n_targets;
+ GdkAtom result = GDK_NONE;
+
+ targets = gimp_clipboard_wait_for_targets (gimp, &n_targets);
+
+ if (targets)
+ {
+ GdkAtom curve_atom = gdk_atom_intern_static_string ("application/x-gimp-curve");
+ gint i;
+
+ for (i = 0; i < n_targets; i++)
+ {
+ if (targets[i] == curve_atom)
+ {
+ result = curve_atom;
+ break;
+ }
+ }
+
+ g_free (targets);
+ }
+
+ return result;
+}
+
+static void
+gimp_clipboard_send_image (GtkClipboard *clipboard,
+ GtkSelectionData *data,
+ guint info,
+ Gimp *gimp)
+{
+ GimpClipboard *gimp_clip = gimp_clipboard_get (gimp);
+
+ gimp_set_busy (gimp);
+
+ if (info == 0)
+ {
+ if (gimp->be_verbose)
+ g_printerr ("clipboard: sending image data as '%s'\n",
+ gimp_clip->image_target_entries[info].target);
+
+ gimp_selection_data_set_xcf (data, gimp_clip->image);
+ }
+ else
+ {
+ GdkPixbuf *pixbuf;
+
+ gimp_pickable_flush (GIMP_PICKABLE (gimp_clip->image));
+
+ pixbuf = gimp_viewable_get_pixbuf (GIMP_VIEWABLE (gimp_clip->image),
+ gimp_get_user_context (gimp),
+ gimp_image_get_width (gimp_clip->image),
+ gimp_image_get_height (gimp_clip->image));
+
+ if (pixbuf)
+ {
+ gdouble res_x;
+ gdouble res_y;
+ gchar str[16];
+
+ gimp_image_get_resolution (gimp_clip->image, &res_x, &res_y);
+
+ g_snprintf (str, sizeof (str), "%d", ROUND (res_x));
+ gdk_pixbuf_set_option (pixbuf, "x-dpi", str);
+
+ g_snprintf (str, sizeof (str), "%d", ROUND (res_y));
+ gdk_pixbuf_set_option (pixbuf, "y-dpi", str);
+
+ if (gimp->be_verbose)
+ g_printerr ("clipboard: sending image data as '%s'\n",
+ gimp_clip->image_target_entries[info].target);
+
+ gtk_selection_data_set_pixbuf (data, pixbuf);
+ }
+ else
+ {
+ g_warning ("%s: gimp_viewable_get_pixbuf() failed", G_STRFUNC);
+ }
+ }
+
+ gimp_unset_busy (gimp);
+}
+
+static void
+gimp_clipboard_send_buffer (GtkClipboard *clipboard,
+ GtkSelectionData *data,
+ guint info,
+ Gimp *gimp)
+{
+ GimpClipboard *gimp_clip = gimp_clipboard_get (gimp);
+ GdkPixbuf *pixbuf;
+
+ gimp_set_busy (gimp);
+
+ pixbuf = gimp_viewable_get_pixbuf (GIMP_VIEWABLE (gimp_clip->buffer),
+ gimp_get_user_context (gimp),
+ gimp_buffer_get_width (gimp_clip->buffer),
+ gimp_buffer_get_height (gimp_clip->buffer));
+
+ if (pixbuf)
+ {
+ gdouble res_x;
+ gdouble res_y;
+ gchar str[16];
+
+ gimp_buffer_get_resolution (gimp_clip->buffer, &res_x, &res_y);
+
+ g_snprintf (str, sizeof (str), "%d", ROUND (res_x));
+ gdk_pixbuf_set_option (pixbuf, "x-dpi", str);
+
+ g_snprintf (str, sizeof (str), "%d", ROUND (res_y));
+ gdk_pixbuf_set_option (pixbuf, "y-dpi", str);
+
+ if (gimp->be_verbose)
+ g_printerr ("clipboard: sending pixbuf data as '%s'\n",
+ gimp_clip->buffer_target_entries[info].target);
+
+ gtk_selection_data_set_pixbuf (data, pixbuf);
+ }
+ else
+ {
+ g_warning ("%s: gimp_viewable_get_pixbuf() failed", G_STRFUNC);
+ }
+
+ gimp_unset_busy (gimp);
+}
+
+static void
+gimp_clipboard_send_svg (GtkClipboard *clipboard,
+ GtkSelectionData *data,
+ guint info,
+ Gimp *gimp)
+{
+ GimpClipboard *gimp_clip = gimp_clipboard_get (gimp);
+
+ gimp_set_busy (gimp);
+
+ if (gimp_clip->svg)
+ {
+ if (gimp->be_verbose)
+ g_printerr ("clipboard: sending SVG data as '%s'\n",
+ gimp_clip->svg_target_entries[info].target);
+
+ gimp_selection_data_set_stream (data,
+ (const guchar *) gimp_clip->svg,
+ strlen (gimp_clip->svg));
+ }
+
+ gimp_unset_busy (gimp);
+}
+
+static void
+gimp_clipboard_send_curve (GtkClipboard *clipboard,
+ GtkSelectionData *data,
+ guint info,
+ Gimp *gimp)
+{
+ GimpClipboard *gimp_clip = gimp_clipboard_get (gimp);
+
+ gimp_set_busy (gimp);
+
+ if (gimp_clip->curve)
+ {
+ if (gimp->be_verbose)
+ g_printerr ("clipboard: sending curve data as '%s'\n",
+ gimp_clip->curve_target_entries[info].target);
+
+ gimp_selection_data_set_curve (data, gimp_clip->curve);
+ }
+
+ gimp_unset_busy (gimp);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-08 10:45:26 +0000