summaryrefslogtreecommitdiffstats
path: root/libgimp/gimpitemcombobox.c
diff options
context:
space:
mode:
Diffstat (limited to 'libgimp/gimpitemcombobox.c')
-rw-r--r--libgimp/gimpitemcombobox.c589
1 files changed, 589 insertions, 0 deletions
diff --git a/libgimp/gimpitemcombobox.c b/libgimp/gimpitemcombobox.c
new file mode 100644
index 0000000..07d5007
--- /dev/null
+++ b/libgimp/gimpitemcombobox.c
@@ -0,0 +1,589 @@
+/* LIBGIMP - The GIMP Library
+ * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
+ *
+ * gimpitemcombobox.c
+ * Copyright (C) 2004 Sven Neumann <sven@gimp.org>
+ * Copyright (C) 2006 Simon Budig <simon@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 <string.h>
+
+#include <gegl.h>
+#include <gtk/gtk.h>
+
+#include "libgimpwidgets/gimpwidgets.h"
+
+#include "gimp.h"
+
+#include "gimpuitypes.h"
+#include "gimpitemcombobox.h"
+#include "gimppixbuf.h"
+
+
+/**
+ * SECTION: gimpitemcombobox
+ * @title: GimpItemComboBox
+ * @short_description: Widgets providing popup menus of items.
+ *
+ * Widgets providing popup menus of items (layers, channels,
+ * drawables, vectors).
+ **/
+
+
+#define THUMBNAIL_SIZE 24
+#define WIDTH_REQUEST 200
+
+
+#define GET_PRIVATE(obj) (g_object_get_data (G_OBJECT (obj), "gimp-item-combo-box-private"))
+
+
+typedef struct _GimpItemComboBoxPrivate GimpItemComboBoxPrivate;
+
+struct _GimpItemComboBoxPrivate
+{
+ GimpItemConstraintFunc constraint;
+ gpointer data;
+};
+
+typedef struct _GimpDrawableComboBoxClass GimpDrawableComboBoxClass;
+typedef struct _GimpChannelComboBoxClass GimpChannelComboBoxClass;
+typedef struct _GimpLayerComboBoxClass GimpLayerComboBoxClass;
+typedef struct _GimpVectorsComboBoxClass GimpVectorsComboBoxClass;
+
+struct _GimpDrawableComboBox
+{
+ GimpIntComboBox parent_instance;
+};
+
+struct _GimpDrawableComboBoxClass
+{
+ GimpIntComboBoxClass parent_class;
+};
+
+struct _GimpChannelComboBox
+{
+ GimpIntComboBox parent_instance;
+};
+
+struct _GimpChannelComboBoxClass
+{
+ GimpIntComboBoxClass parent_class;
+};
+
+struct _GimpLayerComboBox
+{
+ GimpIntComboBox parent_instance;
+};
+
+struct _GimpLayerComboBoxClass
+{
+ GimpIntComboBoxClass parent_class;
+};
+
+struct _GimpVectorsComboBox
+{
+ GimpIntComboBox parent_instance;
+};
+
+struct _GimpVectorsComboBoxClass
+{
+ GimpIntComboBoxClass parent_class;
+};
+
+
+static GtkWidget * gimp_item_combo_box_new (GType type,
+ GimpItemConstraintFunc constraint,
+ gpointer data);
+
+static void gimp_item_combo_box_populate (GimpIntComboBox *combo_box);
+static void gimp_item_combo_box_model_add (GimpIntComboBox *combo_box,
+ GtkListStore *store,
+ gint32 image,
+ gint num_items,
+ gint32 *items,
+ gint tree_level);
+
+static void gimp_item_combo_box_drag_data_received (GtkWidget *widget,
+ GdkDragContext *context,
+ gint x,
+ gint y,
+ GtkSelectionData *selection,
+ guint info,
+ guint time);
+
+static void gimp_item_combo_box_changed (GimpIntComboBox *combo_box);
+
+
+static const GtkTargetEntry targets[] =
+{
+ { "application/x-gimp-channel-id", 0 },
+ { "application/x-gimp-layer-id", 0 },
+ { "application/x-gimp-vectors-id", 0 }
+};
+
+
+G_DEFINE_TYPE (GimpDrawableComboBox, gimp_drawable_combo_box,
+ GIMP_TYPE_INT_COMBO_BOX)
+
+static void
+gimp_drawable_combo_box_class_init (GimpDrawableComboBoxClass *klass)
+{
+ GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+
+ widget_class->drag_data_received = gimp_item_combo_box_drag_data_received;
+}
+
+static void
+gimp_drawable_combo_box_init (GimpDrawableComboBox *combo_box)
+{
+ gtk_drag_dest_set (GTK_WIDGET (combo_box),
+ GTK_DEST_DEFAULT_HIGHLIGHT |
+ GTK_DEST_DEFAULT_MOTION |
+ GTK_DEST_DEFAULT_DROP,
+ targets, 2,
+ GDK_ACTION_COPY);
+
+ g_object_set_data_full (G_OBJECT (combo_box), "gimp-item-combo-box-private",
+ g_new0 (GimpItemComboBoxPrivate, 1),
+ (GDestroyNotify) g_free);
+}
+
+/**
+ * gimp_drawable_combo_box_new:
+ * @constraint: a #GimpDrawableConstraintFunc or %NULL
+ * @data: a pointer that is passed to @constraint
+ *
+ * Creates a new #GimpIntComboBox filled with all currently opened
+ * drawables. If a @constraint function is specified, it is called for
+ * each drawable and only if the function returns %TRUE, the drawable
+ * 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
+ * drawable ID and gimp_int_combo_box_get_active() to retrieve the ID
+ * of the selected drawable.
+ *
+ * Return value: a new #GimpIntComboBox.
+ *
+ * Since: 2.2
+ **/
+GtkWidget *
+gimp_drawable_combo_box_new (GimpDrawableConstraintFunc constraint,
+ gpointer data)
+{
+ return gimp_item_combo_box_new (GIMP_TYPE_DRAWABLE_COMBO_BOX,
+ constraint, data);
+}
+
+
+G_DEFINE_TYPE (GimpChannelComboBox, gimp_channel_combo_box,
+ GIMP_TYPE_INT_COMBO_BOX)
+
+static void
+gimp_channel_combo_box_class_init (GimpChannelComboBoxClass *klass)
+{
+ GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+
+ widget_class->drag_data_received = gimp_item_combo_box_drag_data_received;
+}
+
+static void
+gimp_channel_combo_box_init (GimpChannelComboBox *combo_box)
+{
+ gtk_drag_dest_set (GTK_WIDGET (combo_box),
+ GTK_DEST_DEFAULT_HIGHLIGHT |
+ GTK_DEST_DEFAULT_MOTION |
+ GTK_DEST_DEFAULT_DROP,
+ targets, 1,
+ GDK_ACTION_COPY);
+
+ g_object_set_data_full (G_OBJECT (combo_box), "gimp-item-combo-box-private",
+ g_new0 (GimpItemComboBoxPrivate, 1),
+ (GDestroyNotify) g_free);
+}
+
+/**
+ * gimp_channel_combo_box_new:
+ * @constraint: a #GimpDrawableConstraintFunc or %NULL
+ * @data: a pointer that is passed to @constraint
+ *
+ * Creates a new #GimpIntComboBox filled with all currently opened
+ * channels. See gimp_drawable_combo_box_new() for more information.
+ *
+ * Return value: a new #GimpIntComboBox.
+ *
+ * Since: 2.2
+ **/
+GtkWidget *
+gimp_channel_combo_box_new (GimpDrawableConstraintFunc constraint,
+ gpointer data)
+{
+ return gimp_item_combo_box_new (GIMP_TYPE_CHANNEL_COMBO_BOX,
+ constraint, data);
+}
+
+
+G_DEFINE_TYPE (GimpLayerComboBox, gimp_layer_combo_box,
+ GIMP_TYPE_INT_COMBO_BOX)
+
+static void
+gimp_layer_combo_box_class_init (GimpLayerComboBoxClass *klass)
+{
+ GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+
+ widget_class->drag_data_received = gimp_item_combo_box_drag_data_received;
+}
+
+static void
+gimp_layer_combo_box_init (GimpLayerComboBox *combo_box)
+{
+ gtk_drag_dest_set (GTK_WIDGET (combo_box),
+ GTK_DEST_DEFAULT_HIGHLIGHT |
+ GTK_DEST_DEFAULT_MOTION |
+ GTK_DEST_DEFAULT_DROP,
+ targets + 1, 1,
+ GDK_ACTION_COPY);
+
+ g_object_set_data_full (G_OBJECT (combo_box), "gimp-item-combo-box-private",
+ g_new0 (GimpItemComboBoxPrivate, 1),
+ (GDestroyNotify) g_free);
+}
+
+/**
+ * gimp_layer_combo_box_new:
+ * @constraint: a #GimpDrawableConstraintFunc or %NULL
+ * @data: a pointer that is passed to @constraint
+ *
+ * Creates a new #GimpIntComboBox filled with all currently opened
+ * layers. See gimp_drawable_combo_box_new() for more information.
+ *
+ * Return value: a new #GimpIntComboBox.
+ *
+ * Since: 2.2
+ **/
+GtkWidget *
+gimp_layer_combo_box_new (GimpDrawableConstraintFunc constraint,
+ gpointer data)
+{
+ return gimp_item_combo_box_new (GIMP_TYPE_LAYER_COMBO_BOX,
+ constraint, data);
+}
+
+
+G_DEFINE_TYPE (GimpVectorsComboBox, gimp_vectors_combo_box,
+ GIMP_TYPE_INT_COMBO_BOX)
+
+static void
+gimp_vectors_combo_box_class_init (GimpVectorsComboBoxClass *klass)
+{
+ GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+
+ widget_class->drag_data_received = gimp_item_combo_box_drag_data_received;
+}
+
+static void
+gimp_vectors_combo_box_init (GimpVectorsComboBox *combo_box)
+{
+ gtk_drag_dest_set (GTK_WIDGET (combo_box),
+ GTK_DEST_DEFAULT_HIGHLIGHT |
+ GTK_DEST_DEFAULT_MOTION |
+ GTK_DEST_DEFAULT_DROP,
+ targets + 2, 1,
+ GDK_ACTION_COPY);
+
+ g_object_set_data_full (G_OBJECT (combo_box), "gimp-item-combo-box-private",
+ g_new0 (GimpItemComboBoxPrivate, 1),
+ (GDestroyNotify) g_free);
+}
+
+
+/**
+ * gimp_vectors_combo_box_new:
+ * @constraint: a #GimpVectorsConstraintFunc or %NULL
+ * @data: a pointer that is passed to @constraint
+ *
+ * Creates a new #GimpIntComboBox filled with all currently opened
+ * vectors objects. If a @constraint function is specified, it is called for
+ * each vectors object and only if the function returns %TRUE, the vectors
+ * object 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 set the active
+ * vectors ID and gimp_int_combo_box_get_active() to retrieve the ID
+ * of the selected vectors object.
+ *
+ * Return value: a new #GimpIntComboBox.
+ *
+ * Since: 2.4
+ **/
+GtkWidget *
+gimp_vectors_combo_box_new (GimpVectorsConstraintFunc constraint,
+ gpointer data)
+{
+ return gimp_item_combo_box_new (GIMP_TYPE_VECTORS_COMBO_BOX,
+ constraint, data);
+}
+
+
+static GtkWidget *
+gimp_item_combo_box_new (GType type,
+ GimpItemConstraintFunc constraint,
+ gpointer data)
+{
+ GimpIntComboBox *combo_box;
+ GimpItemComboBoxPrivate *private;
+
+ combo_box = g_object_new (type,
+ "width-request", WIDTH_REQUEST,
+ "ellipsize", PANGO_ELLIPSIZE_MIDDLE,
+ NULL);
+
+ private = GET_PRIVATE (combo_box);
+
+ private->constraint = constraint;
+ private->data = data;
+
+ gimp_item_combo_box_populate (combo_box);
+
+ g_signal_connect (combo_box, "changed",
+ G_CALLBACK (gimp_item_combo_box_changed),
+ NULL);
+
+ return GTK_WIDGET (combo_box);
+}
+
+static void
+gimp_item_combo_box_populate (GimpIntComboBox *combo_box)
+{
+ GtkTreeModel *model;
+ GtkTreeIter iter;
+ gint32 *images;
+ gint num_images;
+ gint i;
+
+ model = gtk_combo_box_get_model (GTK_COMBO_BOX (combo_box));
+
+ images = gimp_image_list (&num_images);
+
+ for (i = 0; i < num_images; i++)
+ {
+ gint32 *items;
+ gint num_items;
+
+ if (GIMP_IS_DRAWABLE_COMBO_BOX (combo_box) ||
+ GIMP_IS_LAYER_COMBO_BOX (combo_box))
+ {
+ items = gimp_image_get_layers (images[i], &num_items);
+ gimp_item_combo_box_model_add (combo_box, GTK_LIST_STORE (model),
+ images[i],
+ num_items, items, 0);
+ g_free (items);
+ }
+
+ if (GIMP_IS_DRAWABLE_COMBO_BOX (combo_box) ||
+ GIMP_IS_CHANNEL_COMBO_BOX (combo_box))
+ {
+ items = gimp_image_get_channels (images[i], &num_items);
+ gimp_item_combo_box_model_add (combo_box, GTK_LIST_STORE (model),
+ images[i],
+ num_items, items, 0);
+ g_free (items);
+ }
+
+ if (GIMP_IS_VECTORS_COMBO_BOX (combo_box))
+ {
+ items = gimp_image_get_vectors (images[i], &num_items);
+ gimp_item_combo_box_model_add (combo_box, GTK_LIST_STORE (model),
+ images[i],
+ num_items, items, 0);
+ g_free (items);
+ }
+ }
+
+ 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_item_combo_box_model_add (GimpIntComboBox *combo_box,
+ GtkListStore *store,
+ gint32 image,
+ gint num_items,
+ gint32 *items,
+ gint tree_level)
+{
+ GimpItemComboBoxPrivate *private = GET_PRIVATE (combo_box);
+ GtkTreeIter iter;
+ gint i;
+ gchar *indent;
+
+ if (tree_level > 0)
+ {
+ indent = g_new (gchar, tree_level + 2);
+ memset (indent, '-', tree_level);
+ indent[tree_level] = ' ';
+ indent[tree_level + 1] = '\0';
+ }
+ else
+ {
+ indent = g_strdup ("");
+ }
+
+ for (i = 0; i < num_items; i++)
+ {
+ if (! private->constraint ||
+ (* private->constraint) (image, items[i], private->data))
+ {
+ gchar *image_name = gimp_image_get_name (image);
+ gchar *item_name = gimp_item_get_name (items[i]);
+ gchar *label;
+ GdkPixbuf *thumb;
+
+ label = g_strdup_printf ("%s%s-%d / %s-%d",
+ indent, image_name, image,
+ item_name, items[i]);
+
+ g_free (item_name);
+ g_free (image_name);
+
+ if (GIMP_IS_VECTORS_COMBO_BOX (combo_box))
+ thumb = NULL;
+ else
+ thumb = gimp_drawable_get_thumbnail (items[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, items[i],
+ GIMP_INT_STORE_LABEL, label,
+ GIMP_INT_STORE_PIXBUF, thumb,
+ -1);
+
+ if (thumb)
+ g_object_unref (thumb);
+
+ g_free (label);
+ }
+
+ if (gimp_item_is_group (items[i]))
+ {
+ gint32 *children;
+ gint n_children;
+
+ children = gimp_item_get_children (items[i], &n_children);
+ gimp_item_combo_box_model_add (combo_box, store,
+ image,
+ n_children, children,
+ tree_level + 1);
+ g_free (children);
+ }
+ }
+
+ g_free (indent);
+}
+
+static void
+gimp_item_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 item 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 gboolean
+gimp_item_combo_box_remove_items (GtkTreeModel *model,
+ GtkTreePath *path,
+ GtkTreeIter *iter,
+ gpointer data)
+{
+ gint item_ID;
+ GList **remove = data;
+
+ gtk_tree_model_get (model, iter,
+ GIMP_INT_STORE_VALUE, &item_ID,
+ -1);
+
+ if (item_ID > 0)
+ *remove = g_list_prepend (*remove, g_memdup (iter, sizeof (GtkTreeIter)));
+
+ return FALSE;
+}
+
+static void
+gimp_item_combo_box_changed (GimpIntComboBox *combo_box)
+{
+ gint item_ID;
+
+ if (gimp_int_combo_box_get_active (combo_box, &item_ID))
+ {
+ if (item_ID > 0 && ! gimp_item_is_valid (item_ID))
+ {
+ GtkTreeModel *model;
+ GList *remove = NULL;
+ GList *list;
+
+ model = gtk_combo_box_get_model (GTK_COMBO_BOX (combo_box));
+
+ g_signal_stop_emission_by_name (combo_box, "changed");
+
+ gtk_tree_model_foreach (model,
+ gimp_item_combo_box_remove_items,
+ &remove);
+
+ for (list = remove; list; list = g_list_next (list))
+ gtk_list_store_remove (GTK_LIST_STORE (model), list->data);
+
+ g_list_free_full (remove, (GDestroyNotify) g_free);
+
+ gimp_item_combo_box_populate (combo_box);
+ }
+ }
+}