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-rw-r--r--app/display/gimpdisplay-foreach.c308
1 files changed, 308 insertions, 0 deletions
diff --git a/app/display/gimpdisplay-foreach.c b/app/display/gimpdisplay-foreach.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 <gegl.h>
+#include <gtk/gtk.h>
+
+#include "display-types.h"
+
+#include "core/gimp.h"
+#include "core/gimpcontainer.h"
+#include "core/gimpcontext.h"
+#include "core/gimpimage.h"
+#include "core/gimplist.h"
+
+#include "gimpdisplay.h"
+#include "gimpdisplay-foreach.h"
+#include "gimpdisplayshell.h"
+#include "gimpdisplayshell-cursor.h"
+
+
+gboolean
+gimp_displays_dirty (Gimp *gimp)
+{
+ GList *list;
+
+ g_return_val_if_fail (GIMP_IS_GIMP (gimp), FALSE);
+
+ for (list = gimp_get_display_iter (gimp);
+ list;
+ list = g_list_next (list))
+ {
+ GimpDisplay *display = list->data;
+ GimpImage *image = gimp_display_get_image (display);
+
+ if (image && gimp_image_is_dirty (image))
+ return TRUE;
+ }
+
+ return FALSE;
+}
+
+static void
+gimp_displays_image_dirty_callback (GimpImage *image,
+ GimpDirtyMask dirty_mask,
+ GimpContainer *container)
+{
+ if (gimp_image_is_dirty (image) &&
+ gimp_image_get_display_count (image) > 0 &&
+ ! gimp_container_have (container, GIMP_OBJECT (image)))
+ gimp_container_add (container, GIMP_OBJECT (image));
+}
+
+static void
+gimp_displays_dirty_images_disconnect (GimpContainer *dirty_container,
+ GimpContainer *global_container)
+{
+ GQuark handler;
+
+ handler = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (dirty_container),
+ "clean-handler"));
+ gimp_container_remove_handler (global_container, handler);
+
+ handler = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (dirty_container),
+ "dirty-handler"));
+ gimp_container_remove_handler (global_container, handler);
+}
+
+static void
+gimp_displays_image_clean_callback (GimpImage *image,
+ GimpDirtyMask dirty_mask,
+ GimpContainer *container)
+{
+ if (! gimp_image_is_dirty (image))
+ gimp_container_remove (container, GIMP_OBJECT (image));
+}
+
+GimpContainer *
+gimp_displays_get_dirty_images (Gimp *gimp)
+{
+ g_return_val_if_fail (GIMP_IS_GIMP (gimp), NULL);
+
+ if (gimp_displays_dirty (gimp))
+ {
+ GimpContainer *container = gimp_list_new_weak (GIMP_TYPE_IMAGE, FALSE);
+ GList *list;
+ GQuark handler;
+
+ handler =
+ gimp_container_add_handler (gimp->images, "clean",
+ G_CALLBACK (gimp_displays_image_dirty_callback),
+ container);
+ g_object_set_data (G_OBJECT (container), "clean-handler",
+ GINT_TO_POINTER (handler));
+
+ handler =
+ gimp_container_add_handler (gimp->images, "dirty",
+ G_CALLBACK (gimp_displays_image_dirty_callback),
+ container);
+ g_object_set_data (G_OBJECT (container), "dirty-handler",
+ GINT_TO_POINTER (handler));
+
+ g_signal_connect_object (container, "disconnect",
+ G_CALLBACK (gimp_displays_dirty_images_disconnect),
+ G_OBJECT (gimp->images), 0);
+
+ gimp_container_add_handler (container, "clean",
+ G_CALLBACK (gimp_displays_image_clean_callback),
+ container);
+ gimp_container_add_handler (container, "dirty",
+ G_CALLBACK (gimp_displays_image_clean_callback),
+ container);
+
+ for (list = gimp_get_image_iter (gimp);
+ list;
+ list = g_list_next (list))
+ {
+ GimpImage *image = list->data;
+
+ if (gimp_image_is_dirty (image) &&
+ gimp_image_get_display_count (image) > 0)
+ gimp_container_add (container, GIMP_OBJECT (image));
+ }
+
+ return container;
+ }
+
+ return NULL;
+}
+
+/**
+ * gimp_displays_delete:
+ * @gimp:
+ *
+ * Calls gimp_display_delete() an all displays in the display list.
+ * This closes all displays, including the first one which is usually
+ * kept open.
+ */
+void
+gimp_displays_delete (Gimp *gimp)
+{
+ /* this removes the GimpDisplay from the list, so do a while loop
+ * "around" the first element to get them all
+ */
+ while (! gimp_container_is_empty (gimp->displays))
+ {
+ GimpDisplay *display = gimp_get_display_iter (gimp)->data;
+
+ gimp_display_delete (display);
+ }
+}
+
+/**
+ * gimp_displays_close:
+ * @gimp:
+ *
+ * Calls gimp_display_close() an all displays in the display list. The
+ * first display will remain open without an image.
+ */
+void
+gimp_displays_close (Gimp *gimp)
+{
+ GList *list;
+ GList *iter;
+
+ g_return_if_fail (GIMP_IS_GIMP (gimp));
+
+ list = g_list_copy (gimp_get_display_iter (gimp));
+
+ for (iter = list; iter; iter = g_list_next (iter))
+ {
+ GimpDisplay *display = iter->data;
+
+ gimp_display_close (display);
+ }
+
+ g_list_free (list);
+}
+
+void
+gimp_displays_reconnect (Gimp *gimp,
+ GimpImage *old,
+ GimpImage *new)
+{
+ GList *contexts = NULL;
+ GList *list;
+
+ g_return_if_fail (GIMP_IS_GIMP (gimp));
+ g_return_if_fail (GIMP_IS_IMAGE (old));
+ g_return_if_fail (GIMP_IS_IMAGE (new));
+
+ /* check which contexts refer to old_image */
+ for (list = gimp->context_list; list; list = g_list_next (list))
+ {
+ GimpContext *context = list->data;
+
+ if (gimp_context_get_image (context) == old)
+ contexts = g_list_prepend (contexts, list->data);
+ }
+
+ /* set the new_image on the remembered contexts (in reverse order,
+ * since older contexts are usually the parents of newer
+ * ones). Also, update the contexts before the displays, or we
+ * might run into menu update functions that would see an
+ * inconsistent state (display = new, context = old), and thus
+ * inadvertently call actions as if the user had selected a menu
+ * item.
+ */
+ g_list_foreach (contexts, (GFunc) gimp_context_set_image, new);
+ g_list_free (contexts);
+
+ for (list = gimp_get_display_iter (gimp);
+ list;
+ list = g_list_next (list))
+ {
+ GimpDisplay *display = list->data;
+
+ if (gimp_display_get_image (display) == old)
+ gimp_display_set_image (display, new);
+ }
+}
+
+gint
+gimp_displays_get_num_visible (Gimp *gimp)
+{
+ GList *list;
+ gint visible = 0;
+
+ g_return_val_if_fail (GIMP_IS_GIMP (gimp), 0);
+
+ for (list = gimp_get_display_iter (gimp);
+ list;
+ list = g_list_next (list))
+ {
+ GimpDisplay *display = list->data;
+ GimpDisplayShell *shell = gimp_display_get_shell (display);
+
+ if (gtk_widget_is_drawable (GTK_WIDGET (shell)))
+ {
+ GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (shell));
+
+ if (GTK_IS_WINDOW (toplevel))
+ {
+ GdkWindow *window = gtk_widget_get_window (toplevel);
+ GdkWindowState state = gdk_window_get_state (window);
+
+ if ((state & (GDK_WINDOW_STATE_WITHDRAWN |
+ GDK_WINDOW_STATE_ICONIFIED)) == 0)
+ {
+ visible++;
+ }
+ }
+ }
+ }
+
+ return visible;
+}
+
+void
+gimp_displays_set_busy (Gimp *gimp)
+{
+ GList *list;
+
+ g_return_if_fail (GIMP_IS_GIMP (gimp));
+
+ for (list = gimp_get_display_iter (gimp);
+ list;
+ list = g_list_next (list))
+ {
+ GimpDisplayShell *shell =
+ gimp_display_get_shell (GIMP_DISPLAY (list->data));
+
+ gimp_display_shell_set_override_cursor (shell, (GimpCursorType) GDK_WATCH);
+ }
+}
+
+void
+gimp_displays_unset_busy (Gimp *gimp)
+{
+ GList *list;
+
+ g_return_if_fail (GIMP_IS_GIMP (gimp));
+
+ for (list = gimp_get_display_iter (gimp);
+ list;
+ list = g_list_next (list))
+ {
+ GimpDisplayShell *shell =
+ gimp_display_get_shell (GIMP_DISPLAY (list->data));
+
+ gimp_display_shell_unset_override_cursor (shell);
+ }
+}
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