forked from AuroraMiddleware/gtk
272 lines
7.4 KiB
C
272 lines
7.4 KiB
C
/* GAIL - The GNOME Accessibility Implementation Library
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* Copyright 2001 Sun Microsystems Inc.
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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 2 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, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <string.h>
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#include <gtk/gtk.h>
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#include "gailimage.h"
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static void gail_image_class_init (GailImageClass *klass);
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static void gail_image_init (GailImage *image);
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static void gail_image_initialize (AtkObject *accessible,
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gpointer data);
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static G_CONST_RETURN gchar* gail_image_get_name (AtkObject *accessible);
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static void atk_image_interface_init (AtkImageIface *iface);
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static G_CONST_RETURN gchar *
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gail_image_get_image_description (AtkImage *image);
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static void gail_image_get_image_position (AtkImage *image,
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gint *x,
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gint *y,
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AtkCoordType coord_type);
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static void gail_image_get_image_size (AtkImage *image,
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gint *width,
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gint *height);
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static gboolean gail_image_set_image_description (AtkImage *image,
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const gchar *description);
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static void gail_image_finalize (GObject *object);
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G_DEFINE_TYPE_WITH_CODE (GailImage, gail_image, GAIL_TYPE_WIDGET,
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G_IMPLEMENT_INTERFACE (ATK_TYPE_IMAGE, atk_image_interface_init))
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static void
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gail_image_class_init (GailImageClass *klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
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gobject_class->finalize = gail_image_finalize;
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class->initialize = gail_image_initialize;
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class->get_name = gail_image_get_name;
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}
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static void
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gail_image_init (GailImage *image)
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{
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image->image_description = NULL;
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}
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static void
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gail_image_initialize (AtkObject *accessible,
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gpointer data)
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{
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ATK_OBJECT_CLASS (gail_image_parent_class)->initialize (accessible, data);
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accessible->role = ATK_ROLE_ICON;
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}
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/* Copied from gtktoolbar.c, keep in sync */
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static gchar *
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elide_underscores (const gchar *original)
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{
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gchar *q, *result;
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const gchar *p, *end;
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gsize len;
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gboolean last_underscore;
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if (!original)
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return NULL;
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len = strlen (original);
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q = result = g_malloc (len + 1);
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last_underscore = FALSE;
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end = original + len;
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for (p = original; p < end; p++)
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{
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if (!last_underscore && *p == '_')
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last_underscore = TRUE;
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else
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{
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last_underscore = FALSE;
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if (original + 2 <= p && p + 1 <= end &&
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p[-2] == '(' && p[-1] == '_' && p[0] != '_' && p[1] == ')')
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{
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q--;
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*q = '\0';
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p++;
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}
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else
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*q++ = *p;
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}
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}
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if (last_underscore)
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*q++ = '_';
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*q = '\0';
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return result;
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}
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static G_CONST_RETURN gchar*
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gail_image_get_name (AtkObject *accessible)
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{
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GtkWidget* widget;
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GtkImage *image;
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GailImage *image_accessible;
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GtkStockItem stock_item;
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gchar *stock_id;
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const gchar *name;
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name = ATK_OBJECT_CLASS (gail_image_parent_class)->get_name (accessible);
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if (name)
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return name;
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widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible));
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/*
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* State is defunct
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*/
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if (widget == NULL)
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return NULL;
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g_return_val_if_fail (GTK_IS_IMAGE (widget), NULL);
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image = GTK_IMAGE (widget);
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image_accessible = GAIL_IMAGE (accessible);
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g_free (image_accessible->stock_name);
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image_accessible->stock_name = NULL;
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if (gtk_image_get_storage_type (image) != GTK_IMAGE_STOCK)
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return NULL;
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gtk_image_get_stock (image, &stock_id, NULL);
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if (stock_id == NULL)
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return NULL;
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if (!gtk_stock_lookup (stock_id, &stock_item))
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return NULL;
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image_accessible->stock_name = elide_underscores (stock_item.label);
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return image_accessible->stock_name;
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}
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static void
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atk_image_interface_init (AtkImageIface *iface)
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{
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iface->get_image_description = gail_image_get_image_description;
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iface->get_image_position = gail_image_get_image_position;
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iface->get_image_size = gail_image_get_image_size;
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iface->set_image_description = gail_image_set_image_description;
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}
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static G_CONST_RETURN gchar *
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gail_image_get_image_description (AtkImage *image)
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{
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GailImage* aimage = GAIL_IMAGE (image);
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return aimage->image_description;
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}
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static void
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gail_image_get_image_position (AtkImage *image,
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gint *x,
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gint *y,
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AtkCoordType coord_type)
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{
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atk_component_get_position (ATK_COMPONENT (image), x, y, coord_type);
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}
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static void
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gail_image_get_image_size (AtkImage *image,
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gint *width,
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gint *height)
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{
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GtkWidget* widget;
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GtkImage *gtk_image;
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GtkImageType image_type;
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widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (image));
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if (widget == 0)
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{
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/* State is defunct */
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*height = -1;
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*width = -1;
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return;
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}
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gtk_image = GTK_IMAGE(widget);
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image_type = gtk_image_get_storage_type(gtk_image);
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switch(image_type) {
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case GTK_IMAGE_PIXBUF:
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{
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GdkPixbuf *pixbuf;
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pixbuf = gtk_image_get_pixbuf(gtk_image);
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*height = gdk_pixbuf_get_height(pixbuf);
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*width = gdk_pixbuf_get_width(pixbuf);
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break;
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}
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case GTK_IMAGE_STOCK:
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case GTK_IMAGE_ICON_SET:
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case GTK_IMAGE_ICON_NAME:
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case GTK_IMAGE_GICON:
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{
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GtkIconSize size;
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GtkSettings *settings;
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settings = gtk_settings_get_for_screen (gtk_widget_get_screen (widget));
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g_object_get (gtk_image, "icon-size", &size, NULL);
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gtk_icon_size_lookup_for_settings (settings, size, width, height);
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break;
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}
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case GTK_IMAGE_ANIMATION:
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{
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GdkPixbufAnimation *animation;
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animation = gtk_image_get_animation(gtk_image);
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*height = gdk_pixbuf_animation_get_height(animation);
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*width = gdk_pixbuf_animation_get_width(animation);
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break;
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}
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default:
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{
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*height = -1;
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*width = -1;
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break;
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}
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}
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}
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static gboolean
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gail_image_set_image_description (AtkImage *image,
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const gchar *description)
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{
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GailImage* aimage = GAIL_IMAGE (image);
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g_free (aimage->image_description);
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aimage->image_description = g_strdup (description);
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return TRUE;
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}
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static void
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gail_image_finalize (GObject *object)
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{
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GailImage *aimage = GAIL_IMAGE (object);
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g_free (aimage->image_description);
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g_free (aimage->stock_name);
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G_OBJECT_CLASS (gail_image_parent_class)->finalize (object);
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}
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