forked from AuroraMiddleware/gtk
6546ef3459
This commit introduces GtkPicture, which is supposed to complement GtkImage. GtkImage will be adapted to always display an icon, while GtkPicture displays regular imagery.
137 lines
3.7 KiB
C
137 lines
3.7 KiB
C
/*
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* Copyright © 2018 Benjamin Otte
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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 2.1 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 <http://www.gnu.org/licenses/>.
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*
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* Authors: Benjamin Otte <otte@gnome.org>
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*/
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#include "config.h"
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#include "gtkpictureaccessibleprivate.h"
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#include "gtkpicture.h"
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struct _GtkPictureAccessible
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{
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GtkWidgetAccessible parent_instance;
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};
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struct _GtkPictureAccessibleClass
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{
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GtkWidgetAccessibleClass parent_class;
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};
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static const gchar *
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gtk_picture_accessible_get_image_description (AtkImage *image)
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{
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GtkWidget* widget;
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widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (image));
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if (widget == NULL)
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return NULL;
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return gtk_picture_get_alternative_text (GTK_PICTURE (widget));
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}
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static void
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gtk_picture_accessible_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_extents (ATK_COMPONENT (image), x, y, NULL, NULL,
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coord_type);
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}
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static void
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gtk_picture_accessible_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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GdkPaintable *paintable;
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*width = -1;
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*height = -1;
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widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (image));
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if (widget == NULL)
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return;
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paintable = gtk_picture_get_paintable (GTK_PICTURE (widget));
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if (paintable == NULL)
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return;
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*width = gdk_paintable_get_intrinsic_width (paintable);
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if (*width == 0)
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*width = -1;
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*height = gdk_paintable_get_intrinsic_height (paintable);
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if (*height == 0)
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*height = -1;
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}
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static void
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gtk_picture_accessible_image_init (AtkImageIface *iface)
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{
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iface->get_image_description = gtk_picture_accessible_get_image_description;
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iface->get_image_position = gtk_picture_accessible_get_image_position;
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iface->get_image_size = gtk_picture_accessible_get_image_size;
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}
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G_DEFINE_TYPE_WITH_CODE (GtkPictureAccessible, gtk_picture_accessible, GTK_TYPE_WIDGET_ACCESSIBLE,
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G_IMPLEMENT_INTERFACE (ATK_TYPE_IMAGE, gtk_picture_accessible_image_init))
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static void
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gtk_picture_accessible_initialize (AtkObject *accessible,
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gpointer data)
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{
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ATK_OBJECT_CLASS (gtk_picture_accessible_parent_class)->initialize (accessible, data);
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accessible->role = ATK_ROLE_IMAGE;
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}
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static const gchar *
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gtk_picture_accessible_get_name (AtkObject *accessible)
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{
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GtkWidget* widget;
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const gchar *name;
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widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (accessible));
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if (widget == NULL)
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return NULL;
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name = ATK_OBJECT_CLASS (gtk_picture_accessible_parent_class)->get_name (accessible);
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if (name)
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return name;
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return gtk_picture_get_alternative_text (GTK_PICTURE (widget));
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}
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static void
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gtk_picture_accessible_class_init (GtkPictureAccessibleClass *klass)
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{
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AtkObjectClass *atkobject_class = ATK_OBJECT_CLASS (klass);
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atkobject_class->initialize = gtk_picture_accessible_initialize;
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atkobject_class->get_name = gtk_picture_accessible_get_name;
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}
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static void
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gtk_picture_accessible_init (GtkPictureAccessible *image)
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{
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}
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