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-rw-r--r--libgimp/gimpmenu.c509
1 files changed, 509 insertions, 0 deletions
diff --git a/libgimp/gimpmenu.c b/libgimp/gimpmenu.c
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+/* LIBGIMP - The GIMP Library
+ * Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
+ *
+ * gimpmenu.c
+ *
+ * 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
+ * Library 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 <gegl.h>
+#include <gtk/gtk.h>
+
+#include "libgimpwidgets/gimpwidgets.h"
+
+#include "gimp.h"
+
+#include "gimppixbuf.h"
+
+#undef GIMP_DISABLE_DEPRECATED
+#include "gimpmenu.h"
+
+#include "libgimp-intl.h"
+
+
+/**
+ * SECTION: gimpmenu
+ * @title: gimpmenu
+ * @short_description: Menus for selecting images, layers, channels
+ * and drawables.
+ *
+ * Menus for selecting images, layers, channels and drawables.
+ **/
+
+
+#define MENU_THUMBNAIL_WIDTH 24
+#define MENU_THUMBNAIL_HEIGHT 24
+
+
+/* local function prototypes */
+
+static GtkWidget * gimp_menu_make_menu (GimpMenuCallback callback,
+ gpointer data);
+static GtkWidget * gimp_menu_add_item (GtkWidget *menu,
+ const gchar *image_name,
+ const gchar *drawable_name,
+ gint32 any_ID);
+static GtkWidget * gimp_menu_add_empty (GtkWidget *menu);
+static GtkWidget * gimp_menu_make_preview (gint32 any_ID,
+ gboolean is_image,
+ gint width,
+ gint height);
+static void gimp_menu_callback (GtkWidget *widget,
+ gpointer any_ID);
+
+
+/* public functions */
+
+/**
+ * gimp_image_menu_new:
+ * @constraint: a function to filter the menu contents
+ * @callback: the callback to call when an image is selected
+ * @data: the callback's user_data
+ * @active_image: an image to preselect
+ *
+ * Deprecated: Use gimp_image_combo_box_new() instead.
+ *
+ * Returns: the image menu.
+ */
+GtkWidget *
+gimp_image_menu_new (GimpConstraintFunc constraint,
+ GimpMenuCallback callback,
+ gpointer data,
+ gint32 active_image)
+{
+ GtkWidget *menu;
+ gchar *name;
+ gchar *label;
+ gint32 *images;
+ gint32 image = -1;
+ gint n_images;
+ gint i, k;
+
+ g_return_val_if_fail (callback != NULL, NULL);
+
+ menu = gimp_menu_make_menu (callback, data);
+
+ images = gimp_image_list (&n_images);
+
+ for (i = 0, k = 0; i < n_images; i++)
+ if (! constraint || (* constraint) (images[i], -1, data))
+ {
+ name = gimp_image_get_name (images[i]);
+ label = g_strdup_printf ("%s-%d", name, images[i]);
+ g_free (name);
+
+ gimp_menu_add_item (menu, label, NULL, images[i]);
+
+ g_free (label);
+
+ if (images[i] == active_image)
+ {
+ image = active_image;
+ gtk_menu_set_active (GTK_MENU (menu), k);
+ }
+ else if (image == -1)
+ {
+ image = images[i];
+ }
+
+ k += 1;
+ }
+
+ if (k == 0)
+ gimp_menu_add_empty (menu);
+
+ (* callback) (image, data);
+
+ g_free (images);
+
+ return menu;
+}
+
+/**
+ * gimp_layer_menu_new:
+ * @constraint: a function to filter the menu contents
+ * @callback: the callback to call when a channel is selected
+ * @data: the callback's user_data
+ * @active_layer: a layer to preselect
+ *
+ * Deprecated: Use gimp_layer_combo_box_new() instead.
+ *
+ * Returns: the layer menu.
+ */
+GtkWidget *
+gimp_layer_menu_new (GimpConstraintFunc constraint,
+ GimpMenuCallback callback,
+ gpointer data,
+ gint32 active_layer)
+{
+ GtkWidget *menu;
+ gchar *image_label;
+ gint32 *images;
+ gint32 *layers;
+ gint32 layer = -1;
+ gint n_images;
+ gint n_layers;
+ gint i, j, k;
+
+ g_return_val_if_fail (callback != NULL, NULL);
+
+ menu = gimp_menu_make_menu (callback, data);
+
+ images = gimp_image_list (&n_images);
+
+ for (i = 0, k = 0; i < n_images; i++)
+ if (! constraint || (* constraint) (images[i], -1, data))
+ {
+ gchar *name;
+
+ name = gimp_image_get_name (images[i]);
+ image_label = g_strdup_printf ("%s-%d", name, images[i]);
+ g_free (name);
+
+ layers = gimp_image_get_layers (images[i], &n_layers);
+
+ for (j = 0; j < n_layers; j++)
+ if (! constraint || (* constraint) (images[i], layers[j], data))
+ {
+ name = gimp_item_get_name (layers[j]);
+ gimp_menu_add_item (menu, image_label, name, layers[j]);
+ g_free (name);
+
+ if (layers[j] == active_layer)
+ {
+ layer = active_layer;
+ gtk_menu_set_active (GTK_MENU (menu), k);
+ }
+ else if (layer == -1)
+ {
+ layer = layers[j];
+ }
+
+ k += 1;
+ }
+
+ g_free (image_label);
+ g_free (layers);
+ }
+
+ g_free (images);
+
+ if (k == 0)
+ gimp_menu_add_empty (menu);
+
+ (* callback) (layer, data);
+
+ return menu;
+}
+
+/**
+ * gimp_channel_menu_new:
+ * @constraint: a function to filter the menu contents
+ * @callback: the callback to call when a channel is selected
+ * @data: the callback's user_data
+ * @active_channel: a channel to preselect
+ *
+ * Deprecated: Use gimp_channel_combo_box_new() instead.
+ *
+ * Returns: the channel menu.
+ */
+GtkWidget *
+gimp_channel_menu_new (GimpConstraintFunc constraint,
+ GimpMenuCallback callback,
+ gpointer data,
+ gint32 active_channel)
+{
+ GtkWidget *menu;
+ gchar *image_label;
+ gint32 *images;
+ gint32 *channels;
+ gint32 channel;
+ gint n_images;
+ gint n_channels;
+ gint i, j, k;
+
+ g_return_val_if_fail (callback != NULL, NULL);
+
+ menu = gimp_menu_make_menu (callback, data);
+
+ channel = -1;
+
+ images = gimp_image_list (&n_images);
+
+ for (i = 0, k = 0; i < n_images; i++)
+ if (! constraint || (* constraint) (images[i], -1, data))
+ {
+ gchar *name;
+
+ name = gimp_image_get_name (images[i]);
+ image_label = g_strdup_printf ("%s-%d", name, images[i]);
+ g_free (name);
+
+ channels = gimp_image_get_channels (images[i], &n_channels);
+
+ for (j = 0; j < n_channels; j++)
+ if (! constraint || (* constraint) (images[i], channels[j], data))
+ {
+ name = gimp_item_get_name (channels[j]);
+ gimp_menu_add_item (menu, image_label, name, channels[j]);
+ g_free (name);
+
+ if (channels[j] == active_channel)
+ {
+ channel = active_channel;
+ gtk_menu_set_active (GTK_MENU (menu), k);
+ }
+ else if (channel == -1)
+ {
+ channel = channels[j];
+ }
+
+ k += 1;
+ }
+
+ g_free (image_label);
+ g_free (channels);
+ }
+
+ g_free (images);
+
+ if (k == 0)
+ gimp_menu_add_empty (menu);
+
+ (* callback) (channel, data);
+
+ return menu;
+}
+
+/**
+ * gimp_drawable_menu_new:
+ * @constraint: a function to filter the menu contents
+ * @callback: the callback to call when a channel is selected
+ * @data: the callback's user_data
+ * @active_drawable: a drawable to preselect
+ *
+ * Deprecated: Use gimp_drawable_combo_box_new() instead.
+ *
+ * Returns: the drawable menu.
+ */
+GtkWidget *
+gimp_drawable_menu_new (GimpConstraintFunc constraint,
+ GimpMenuCallback callback,
+ gpointer data,
+ gint32 active_drawable)
+{
+ GtkWidget *menu;
+ gchar *name;
+ gchar *image_label;
+ gint32 *images;
+ gint32 *layers;
+ gint32 *channels;
+ gint32 drawable;
+ gint n_images;
+ gint n_layers;
+ gint n_channels;
+ gint i, j, k;
+
+ menu = gimp_menu_make_menu (callback, data);
+
+ drawable = -1;
+
+ images = gimp_image_list (&n_images);
+
+ for (i = 0, k = 0; i < n_images; i++)
+ if (! constraint || (* constraint) (images[i], -1, data))
+ {
+ name = gimp_image_get_name (images[i]);
+ image_label = g_strdup_printf ("%s-%d", name, images[i]);
+ g_free (name);
+
+ layers = gimp_image_get_layers (images[i], &n_layers);
+ channels = gimp_image_get_channels (images[i], &n_channels);
+
+ for (j = 0; j < n_layers; j++)
+ if (! constraint || (* constraint) (images[i], layers[j], data))
+ {
+ name = gimp_item_get_name (layers[j]);
+ gimp_menu_add_item (menu, image_label, name, layers[j]);
+ g_free (name);
+
+ if (layers[j] == active_drawable)
+ {
+ drawable = active_drawable;
+ gtk_menu_set_active (GTK_MENU (menu), k);
+ }
+ else if (drawable == -1)
+ {
+ drawable = layers[j];
+ }
+
+ k += 1;
+ }
+
+ for (j = 0; j < n_channels; j++)
+ if (! constraint || (* constraint) (images[i], channels[j], data))
+ {
+ name = gimp_item_get_name (channels[j]);
+ gimp_menu_add_item (menu, image_label, name, channels[j]);
+ g_free (name);
+
+ if (channels[j] == active_drawable)
+ {
+ drawable = active_drawable;
+ gtk_menu_set_active (GTK_MENU (menu), k);
+ }
+ else if (drawable == -1)
+ {
+ drawable = channels[j];
+ }
+
+ k += 1;
+ }
+
+ g_free (image_label);
+ g_free (layers);
+ g_free (channels);
+ }
+
+ g_free (images);
+
+ if (k == 0)
+ gimp_menu_add_empty (menu);
+
+ (* callback) (drawable, data);
+
+ return menu;
+}
+
+
+/* private functions */
+
+static GtkWidget *
+gimp_menu_make_menu (GimpMenuCallback callback,
+ gpointer data)
+{
+ GtkWidget *menu;
+
+ menu = gtk_menu_new ();
+ g_object_set_data (G_OBJECT (menu), "gimp-menu-callback", callback);
+ g_object_set_data (G_OBJECT (menu), "gimp-menu-callback-data", data);
+
+ return menu;
+}
+
+static GtkWidget *
+gimp_menu_add_item (GtkWidget *menu,
+ const gchar *image_name,
+ const gchar *drawable_name,
+ gint32 any_ID)
+{
+ GtkWidget *menuitem;
+ GtkWidget *hbox;
+ GtkWidget *vbox;
+ GtkWidget *preview;
+ GtkWidget *label;
+ gchar *str;
+
+ if (drawable_name)
+ str = g_strdup_printf ("%s/%s-%d", image_name, drawable_name, any_ID);
+ else
+ str = g_strdup (image_name);
+
+ menuitem = gtk_menu_item_new ();
+ gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
+ gtk_widget_show (menuitem);
+
+ g_signal_connect (menuitem, "activate",
+ G_CALLBACK (gimp_menu_callback),
+ GINT_TO_POINTER (any_ID));
+
+ hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
+ gtk_container_add (GTK_CONTAINER (menuitem), hbox);
+ gtk_widget_show (hbox);
+
+ vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
+ gtk_box_pack_start (GTK_BOX (hbox), vbox, FALSE, FALSE, 0);
+ gtk_widget_show (vbox);
+
+ preview = gimp_menu_make_preview (any_ID, drawable_name == NULL,
+ MENU_THUMBNAIL_WIDTH,
+ MENU_THUMBNAIL_HEIGHT);
+ gtk_box_pack_start (GTK_BOX (vbox), preview, TRUE, TRUE, 0);
+ gtk_widget_show (preview);
+
+ label = gtk_label_new (str);
+ gtk_box_pack_start (GTK_BOX (hbox), label, FALSE, FALSE, 0);
+ gtk_widget_show (label);
+
+ g_free (str);
+
+ return menuitem;
+}
+
+static GtkWidget *
+gimp_menu_add_empty (GtkWidget *menu)
+{
+ GtkWidget *menuitem;
+
+ menuitem = gtk_menu_item_new_with_label (_("(Empty)"));
+ gtk_widget_set_sensitive (menuitem, FALSE);
+ gtk_menu_shell_append (GTK_MENU_SHELL (menu), menuitem);
+ gtk_widget_show (menuitem);
+
+ return menuitem;
+}
+
+static GtkWidget *
+gimp_menu_make_preview (gint32 any_ID,
+ gboolean is_image,
+ gint width,
+ gint height)
+{
+ GtkWidget *image;
+ GdkPixbuf *pixbuf;
+
+ if (is_image)
+ pixbuf = gimp_image_get_thumbnail (any_ID,
+ width, height,
+ GIMP_PIXBUF_SMALL_CHECKS);
+ else
+ pixbuf = gimp_drawable_get_thumbnail (any_ID,
+ width, height,
+ GIMP_PIXBUF_SMALL_CHECKS);
+
+ image = gtk_image_new_from_pixbuf (pixbuf);
+
+ g_object_unref (pixbuf);
+
+ return image;
+}
+
+static void
+gimp_menu_callback (GtkWidget *widget,
+ gpointer any_ID)
+{
+ GtkWidget *parent = gtk_widget_get_parent (widget);
+ GimpMenuCallback callback;
+ gpointer callback_data;
+
+ callback = (GimpMenuCallback) g_object_get_data (G_OBJECT (parent),
+ "gimp-menu-callback");
+ callback_data = g_object_get_data (G_OBJECT (parent),
+ "gimp-menu-callback-data");
+
+ (* callback) (GPOINTER_TO_INT (any_ID), callback_data);
+}
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