Adding upstream version 2.10.36.upstream/2.10.36

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 272 insertions, 0 deletions

diff --git a/libgimp/gimpimagecombobox.c b/libgimp/gimpimagecombobox.c
new file mode 100644
index 0000000..99aee7e
--- /dev/null
+++ b/libgimp/gimpimagecombobox.c
@@ -0,0 +1,272 @@
+/* LIBGIMP - The GIMP Library
+ * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
+ *
+ * gimpimagecombobox.c
+ * Copyright (C) 2004 Sven Neumann <sven@gimp.org>
+ *
+ * This library is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library.  If not, see
+ * <https://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <stdlib.h>
+
+#include <gegl.h>
+#include <gtk/gtk.h>
+
+#include "libgimpwidgets/gimpwidgets.h"
+
+#include "gimp.h"
+
+#include "gimpuitypes.h"
+#include "gimpimagecombobox.h"
+#include "gimppixbuf.h"
+
+
+/**
+ * SECTION: gimpimagecombobox
+ * @title: GimpImageComboBox
+ * @short_description: A widget providing a popup menu of images.
+ *
+ * A widget providing a popup menu of images.
+ **/
+
+
+#define THUMBNAIL_SIZE   24
+#define WIDTH_REQUEST   200
+
+
+typedef struct _GimpImageComboBoxClass GimpImageComboBoxClass;
+
+struct _GimpImageComboBox
+{
+  GimpIntComboBox          parent_instance;
+
+  GimpImageConstraintFunc  constraint;
+  gpointer                 data;
+};
+
+struct _GimpImageComboBoxClass
+{
+  GimpIntComboBoxClass  parent_class;
+};
+
+
+static void  gimp_image_combo_box_populate  (GimpImageComboBox       *combo_box);
+static void  gimp_image_combo_box_model_add (GtkListStore            *store,
+                                             gint                     num_images,
+                                             gint32                  *images,
+                                             GimpImageConstraintFunc  constraint,
+                                             gpointer                 data);
+
+static void  gimp_image_combo_box_drag_data_received (GtkWidget        *widget,
+                                                      GdkDragContext   *context,
+                                                      gint              x,
+                                                      gint              y,
+                                                      GtkSelectionData *selection,
+                                                      guint             info,
+                                                      guint             time);
+
+static void  gimp_image_combo_box_changed   (GimpImageComboBox *combo_box);
+
+
+static const GtkTargetEntry target = { "application/x-gimp-image-id", 0 };
+
+
+G_DEFINE_TYPE (GimpImageComboBox, gimp_image_combo_box, GIMP_TYPE_INT_COMBO_BOX)
+
+
+static void
+gimp_image_combo_box_class_init (GimpImageComboBoxClass *klass)
+{
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+
+  widget_class->drag_data_received = gimp_image_combo_box_drag_data_received;
+}
+
+static void
+gimp_image_combo_box_init (GimpImageComboBox *combo_box)
+{
+  gtk_drag_dest_set (GTK_WIDGET (combo_box),
+                     GTK_DEST_DEFAULT_HIGHLIGHT |
+                     GTK_DEST_DEFAULT_MOTION |
+                     GTK_DEST_DEFAULT_DROP,
+                     &target, 1,
+                     GDK_ACTION_COPY);
+}
+
+/**
+ * gimp_image_combo_box_new:
+ * @constraint: a #GimpImageConstraintFunc or %NULL
+ * @data:       a pointer that is passed to @constraint
+ *
+ * Creates a new #GimpIntComboBox filled with all currently opened
+ * images. If a @constraint function is specified, it is called for
+ * each image and only if the function returns %TRUE, the image is
+ * added to the combobox.
+ *
+ * You should use gimp_int_combo_box_connect() to initialize and
+ * connect the combo. Use gimp_int_combo_box_set_active() to get the
+ * active image ID and gimp_int_combo_box_get_active() to retrieve the
+ * ID of the selected image.
+ *
+ * Return value: a new #GimpIntComboBox.
+ *
+ * Since: 2.2
+ **/
+GtkWidget *
+gimp_image_combo_box_new (GimpImageConstraintFunc constraint,
+                          gpointer                data)
+{
+  GimpImageComboBox *combo_box;
+
+  combo_box = g_object_new (GIMP_TYPE_IMAGE_COMBO_BOX,
+                            "width-request", WIDTH_REQUEST,
+                            "ellipsize",     PANGO_ELLIPSIZE_MIDDLE,
+                            NULL);
+
+  combo_box->constraint = constraint;
+  combo_box->data       = data;
+
+  gimp_image_combo_box_populate (combo_box);
+
+  g_signal_connect (combo_box, "changed",
+                    G_CALLBACK (gimp_image_combo_box_changed),
+                    NULL);
+
+  return GTK_WIDGET (combo_box);
+}
+
+static void
+gimp_image_combo_box_populate (GimpImageComboBox *combo_box)
+{
+  GtkTreeModel *model;
+  GtkTreeIter   iter;
+  gint32       *images;
+  gint          num_images;
+
+  model = gtk_combo_box_get_model (GTK_COMBO_BOX (combo_box));
+
+  images = gimp_image_list (&num_images);
+
+  gimp_image_combo_box_model_add (GTK_LIST_STORE (model),
+                                  num_images, images,
+                                  combo_box->constraint,
+                                  combo_box->data);
+
+  g_free (images);
+
+  if (gtk_tree_model_get_iter_first (model, &iter))
+    gtk_combo_box_set_active_iter (GTK_COMBO_BOX (combo_box), &iter);
+}
+
+static void
+gimp_image_combo_box_model_add (GtkListStore            *store,
+                                gint                     num_images,
+                                gint32                  *images,
+                                GimpImageConstraintFunc  constraint,
+                                gpointer                 data)
+{
+  GtkTreeIter  iter;
+  gint         i;
+
+  for (i = 0; i < num_images; i++)
+    {
+      if (! constraint || (* constraint) (images[i], data))
+        {
+          gchar     *image_name = gimp_image_get_name (images[i]);
+          gchar     *label;
+          GdkPixbuf *thumb;
+
+          label = g_strdup_printf ("%s-%d", image_name, images[i]);
+
+          g_free (image_name);
+
+          thumb = gimp_image_get_thumbnail (images[i],
+                                            THUMBNAIL_SIZE, THUMBNAIL_SIZE,
+                                            GIMP_PIXBUF_SMALL_CHECKS);
+
+          gtk_list_store_append (store, &iter);
+          gtk_list_store_set (store, &iter,
+                              GIMP_INT_STORE_VALUE,  images[i],
+                              GIMP_INT_STORE_LABEL,  label,
+                              GIMP_INT_STORE_PIXBUF, thumb,
+                              -1);
+
+          if (thumb)
+            g_object_unref (thumb);
+
+          g_free (label);
+        }
+    }
+}
+
+static void
+gimp_image_combo_box_drag_data_received (GtkWidget        *widget,
+                                         GdkDragContext   *context,
+                                         gint              x,
+                                         gint              y,
+                                         GtkSelectionData *selection,
+                                         guint             info,
+                                         guint             time)
+{
+  gint   length = gtk_selection_data_get_length (selection);
+  gchar *str;
+
+  if (gtk_selection_data_get_format (selection) != 8 || length < 1)
+    {
+      g_warning ("%s: received invalid image ID data", G_STRFUNC);
+      return;
+    }
+
+  str = g_strndup ((const gchar *) gtk_selection_data_get_data (selection),
+                   length);
+
+  if (g_utf8_validate (str, -1, NULL))
+    {
+      gint pid;
+      gint ID;
+
+      if (sscanf (str, "%i:%i", &pid, &ID) == 2 &&
+          pid == gimp_getpid ())
+        {
+          gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (widget), ID);
+        }
+    }
+
+  g_free (str);
+}
+
+static void
+gimp_image_combo_box_changed (GimpImageComboBox *combo_box)
+{
+  gint image_ID;
+
+  if (gimp_int_combo_box_get_active (GIMP_INT_COMBO_BOX (combo_box),
+                                     &image_ID))
+    {
+      if (! gimp_image_is_valid (image_ID))
+        {
+          GtkTreeModel *model;
+
+          model = gtk_combo_box_get_model (GTK_COMBO_BOX (combo_box));
+
+          g_signal_stop_emission_by_name (combo_box, "changed");
+
+          gtk_list_store_clear (GTK_LIST_STORE (model));
+          gimp_image_combo_box_populate (combo_box);
+        }
+    }
+}