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-rw-r--r--app/display/gimpdisplayshell-icon.c140
1 files changed, 140 insertions, 0 deletions
diff --git a/app/display/gimpdisplayshell-icon.c b/app/display/gimpdisplayshell-icon.c
new file mode 100644
index 0000000..6168820
--- /dev/null
+++ b/app/display/gimpdisplayshell-icon.c
@@ -0,0 +1,140 @@
+/* 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 "display-types.h"
+
+#include "core/gimp.h"
+#include "core/gimpimage.h"
+
+#include "widgets/gimpwidgets-utils.h"
+
+#include "gimpdisplay.h"
+#include "gimpdisplayshell.h"
+#include "gimpdisplayshell-icon.h"
+
+
+#define GIMP_DISPLAY_UPDATE_ICON_TIMEOUT 1000
+
+static gboolean gimp_display_shell_icon_update_idle (gpointer data);
+
+
+/* public functions */
+
+void
+gimp_display_shell_icon_update (GimpDisplayShell *shell)
+{
+ g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
+
+ gimp_display_shell_icon_update_stop (shell);
+
+ if (gimp_display_get_image (shell->display))
+ shell->icon_idle_id = g_timeout_add_full (G_PRIORITY_LOW,
+ GIMP_DISPLAY_UPDATE_ICON_TIMEOUT,
+ gimp_display_shell_icon_update_idle,
+ shell,
+ NULL);
+ else
+ gimp_display_shell_icon_update_idle (shell);
+}
+
+void
+gimp_display_shell_icon_update_stop (GimpDisplayShell *shell)
+{
+ g_return_if_fail (GIMP_IS_DISPLAY_SHELL (shell));
+
+ if (shell->icon_idle_id)
+ {
+ g_source_remove (shell->icon_idle_id);
+ shell->icon_idle_id = 0;
+ }
+}
+
+
+/* private functions */
+
+static gboolean
+gimp_display_shell_icon_update_idle (gpointer data)
+{
+ GimpDisplayShell *shell = GIMP_DISPLAY_SHELL (data);
+ GimpImage *image = gimp_display_get_image (shell->display);
+ GdkPixbuf *icon = NULL;
+
+ shell->icon_idle_id = 0;
+
+ if (image)
+ {
+ Gimp *gimp = gimp_display_get_gimp (shell->display);
+ GdkPixbuf *pixbuf;
+ gint width;
+ gint height;
+ gdouble factor = ((gdouble) gimp_image_get_height (image) /
+ (gdouble) gimp_image_get_width (image));
+
+ if (factor >= 1)
+ {
+ height = MAX (shell->icon_size, 1);
+ width = MAX (((gdouble) shell->icon_size) / factor, 1);
+ }
+ else
+ {
+ height = MAX (((gdouble) shell->icon_size) * factor, 1);
+ width = MAX (shell->icon_size, 1);
+ }
+
+ pixbuf = gimp_viewable_get_pixbuf (GIMP_VIEWABLE (image),
+ gimp_get_user_context (gimp),
+ width, height);
+
+ icon = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8,
+ shell->icon_size, shell->icon_size);
+
+ memset (gdk_pixbuf_get_pixels (icon), 0,
+ gdk_pixbuf_get_height (icon) *
+ gdk_pixbuf_get_rowstride (icon));
+
+ gdk_pixbuf_copy_area (pixbuf, 0, 0, width, height,
+ icon,
+ 0, shell->icon_size - height);
+
+ pixbuf = gimp_widget_load_icon (GTK_WIDGET (shell), "gimp-wilber-outline",
+ shell->icon_size_small);
+
+ width = gdk_pixbuf_get_width (pixbuf);
+ height = gdk_pixbuf_get_height (pixbuf);
+
+ gdk_pixbuf_composite (pixbuf, icon,
+ shell->icon_size - width, 0,
+ width, height,
+ shell->icon_size - width, 0.0, 1.0, 1.0,
+ GDK_INTERP_NEAREST, 255);
+ g_object_unref (pixbuf);
+ }
+
+ g_object_set (shell, "icon", icon, NULL);
+
+ if (icon)
+ g_object_unref (icon);
+
+ return FALSE;
+}