mirror of
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8005eea835
because it confuses gtk-doc and breaks some links. Also change the "Index of new symbols in GIMP 2.x" sections to be what seems to be the modern standard (looked at the GLib and GTK+ docs), and update some other stuff.
272 lines
8.2 KiB
C
272 lines
8.2 KiB
C
/* LIBGIMP - The GIMP Library
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* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
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*
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* gimpimagecombobox.c
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* Copyright (C) 2004 Sven Neumann <sven@gimp.org>
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*
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* This library is free software: you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 3 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <stdlib.h>
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#include <gegl.h>
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#include <gtk/gtk.h>
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#include "libgimpwidgets/gimpwidgets.h"
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#include "gimp.h"
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#include "gimpuitypes.h"
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#include "gimpimagecombobox.h"
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#include "gimppixbuf.h"
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/**
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* SECTION: gimpimagecombobox
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* @title: GimpImageComboBox
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* @short_description: A widget providing a popup menu of images.
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*
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* A widget providing a popup menu of images.
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**/
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#define THUMBNAIL_SIZE 24
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#define WIDTH_REQUEST 200
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typedef struct _GimpImageComboBoxClass GimpImageComboBoxClass;
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struct _GimpImageComboBox
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{
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GimpIntComboBox parent_instance;
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GimpImageConstraintFunc constraint;
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gpointer data;
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};
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struct _GimpImageComboBoxClass
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{
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GimpIntComboBoxClass parent_class;
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};
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static void gimp_image_combo_box_populate (GimpImageComboBox *combo_box);
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static void gimp_image_combo_box_model_add (GtkListStore *store,
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gint num_images,
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gint32 *images,
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GimpImageConstraintFunc constraint,
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gpointer data);
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static void gimp_image_combo_box_drag_data_received (GtkWidget *widget,
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GdkDragContext *context,
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gint x,
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gint y,
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GtkSelectionData *selection,
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guint info,
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guint time);
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static void gimp_image_combo_box_changed (GimpImageComboBox *combo_box);
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static const GtkTargetEntry target = { "application/x-gimp-image-id", 0 };
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G_DEFINE_TYPE (GimpImageComboBox, gimp_image_combo_box, GIMP_TYPE_INT_COMBO_BOX)
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static void
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gimp_image_combo_box_class_init (GimpImageComboBoxClass *klass)
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{
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
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widget_class->drag_data_received = gimp_image_combo_box_drag_data_received;
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}
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static void
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gimp_image_combo_box_init (GimpImageComboBox *combo_box)
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{
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gtk_drag_dest_set (GTK_WIDGET (combo_box),
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GTK_DEST_DEFAULT_HIGHLIGHT |
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GTK_DEST_DEFAULT_MOTION |
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GTK_DEST_DEFAULT_DROP,
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&target, 1,
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GDK_ACTION_COPY);
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}
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/**
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* gimp_image_combo_box_new:
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* @constraint: a #GimpImageConstraintFunc or %NULL
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* @data: a pointer that is passed to @constraint
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*
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* Creates a new #GimpIntComboBox filled with all currently opened
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* images. If a @constraint function is specified, it is called for
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* each image and only if the function returns %TRUE, the image is
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* added to the combobox.
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*
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* You should use gimp_int_combo_box_connect() to initialize and
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* connect the combo. Use gimp_int_combo_box_set_active() to get the
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* active image ID and gimp_int_combo_box_get_active() to retrieve the
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* ID of the selected image.
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*
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* Return value: a new #GimpIntComboBox.
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*
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* Since: 2.2
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**/
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GtkWidget *
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gimp_image_combo_box_new (GimpImageConstraintFunc constraint,
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gpointer data)
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{
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GimpImageComboBox *combo_box;
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combo_box = g_object_new (GIMP_TYPE_IMAGE_COMBO_BOX,
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"width-request", WIDTH_REQUEST,
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"ellipsize", PANGO_ELLIPSIZE_MIDDLE,
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NULL);
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combo_box->constraint = constraint;
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combo_box->data = data;
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gimp_image_combo_box_populate (combo_box);
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g_signal_connect (combo_box, "changed",
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G_CALLBACK (gimp_image_combo_box_changed),
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NULL);
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return GTK_WIDGET (combo_box);
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}
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static void
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gimp_image_combo_box_populate (GimpImageComboBox *combo_box)
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{
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GtkTreeModel *model;
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GtkTreeIter iter;
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gint32 *images;
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gint num_images;
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model = gtk_combo_box_get_model (GTK_COMBO_BOX (combo_box));
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images = gimp_image_list (&num_images);
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gimp_image_combo_box_model_add (GTK_LIST_STORE (model),
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num_images, images,
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combo_box->constraint,
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combo_box->data);
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g_free (images);
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if (gtk_tree_model_get_iter_first (model, &iter))
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gtk_combo_box_set_active_iter (GTK_COMBO_BOX (combo_box), &iter);
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}
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static void
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gimp_image_combo_box_model_add (GtkListStore *store,
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gint num_images,
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gint32 *images,
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GimpImageConstraintFunc constraint,
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gpointer data)
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{
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GtkTreeIter iter;
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gint i;
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for (i = 0; i < num_images; i++)
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{
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if (! constraint || (* constraint) (images[i], data))
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{
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gchar *image_name = gimp_image_get_name (images[i]);
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gchar *label;
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GdkPixbuf *thumb;
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label = g_strdup_printf ("%s-%d", image_name, images[i]);
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g_free (image_name);
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thumb = gimp_image_get_thumbnail (images[i],
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THUMBNAIL_SIZE, THUMBNAIL_SIZE,
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GIMP_PIXBUF_SMALL_CHECKS);
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gtk_list_store_append (store, &iter);
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gtk_list_store_set (store, &iter,
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GIMP_INT_STORE_VALUE, images[i],
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GIMP_INT_STORE_LABEL, label,
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GIMP_INT_STORE_PIXBUF, thumb,
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-1);
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if (thumb)
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g_object_unref (thumb);
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g_free (label);
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}
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}
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}
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static void
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gimp_image_combo_box_drag_data_received (GtkWidget *widget,
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GdkDragContext *context,
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gint x,
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gint y,
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GtkSelectionData *selection,
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guint info,
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guint time)
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{
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gint length = gtk_selection_data_get_length (selection);
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gchar *str;
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if (gtk_selection_data_get_format (selection) != 8 || length < 1)
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{
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g_warning ("%s: received invalid image ID data", G_STRFUNC);
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return;
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}
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str = g_strndup ((const gchar *) gtk_selection_data_get_data (selection),
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length);
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if (g_utf8_validate (str, -1, NULL))
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{
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gint pid;
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gint ID;
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if (sscanf (str, "%i:%i", &pid, &ID) == 2 &&
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pid == gimp_getpid ())
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{
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gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (widget), ID);
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}
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}
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g_free (str);
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}
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static void
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gimp_image_combo_box_changed (GimpImageComboBox *combo_box)
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{
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gint image_ID;
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if (gimp_int_combo_box_get_active (GIMP_INT_COMBO_BOX (combo_box),
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&image_ID))
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{
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if (! gimp_image_is_valid (image_ID))
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{
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GtkTreeModel *model;
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model = gtk_combo_box_get_model (GTK_COMBO_BOX (combo_box));
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g_signal_stop_emission_by_name (combo_box, "changed");
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gtk_list_store_clear (GTK_LIST_STORE (model));
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gimp_image_combo_box_populate (combo_box);
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}
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}
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}
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