* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
+ * modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 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.
+ * Lesser General Public License for more details.
*
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
+
+/*
+ * Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
+ * file for a list of people on the GTK+ Team. See the ChangeLog
+ * files for a list of changes. These files are distributed with
+ * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
+ */
+
+#include "config.h"
+
+#include <math.h>
+#include <string.h>
+
#include "gtkcontainer.h"
-#include "gtkimage.h"
+#include "gtkiconhelperprivate.h"
+#include "gtkimageprivate.h"
+#include "gtkiconfactory.h"
+#include "gtkstock.h"
+#include "gtkicontheme.h"
+#include "gtksizerequest.h"
+#include "gtkintl.h"
+#include "gtkprivate.h"
+#include "gtktypebuiltins.h"
+#include "a11y/gtkimageaccessible.h"
-static void gtk_image_class_init (GtkImageClass *klass);
-static void gtk_image_init (GtkImage *image);
-static gint gtk_image_expose (GtkWidget *widget,
- GdkEventExpose *event);
+/**
+ * SECTION:gtkimage
+ * @Short_description: A widget displaying an image
+ * @Title: GtkImage
+ * @See_also:#GdkPixbuf
+ *
+ * The #GtkImage widget displays an image. Various kinds of object
+ * can be displayed as an image; most typically, you would load a
+ * #GdkPixbuf ("pixel buffer") from a file, and then display that.
+ * There's a convenience function to do this, gtk_image_new_from_file(),
+ * used as follows:
+ * <informalexample><programlisting>
+ * GtkWidget *image;
+ * image = gtk_image_new_from_file ("myfile.png");
+ * </programlisting></informalexample>
+ * If the file isn't loaded successfully, the image will contain a
+ * "broken image" icon similar to that used in many web browsers.
+ * If you want to handle errors in loading the file yourself,
+ * for example by displaying an error message, then load the image with
+ * gdk_pixbuf_new_from_file(), then create the #GtkImage with
+ * gtk_image_new_from_pixbuf().
+ *
+ * The image file may contain an animation, if so the #GtkImage will
+ * display an animation (#GdkPixbufAnimation) instead of a static image.
+ *
+ * #GtkImage is a subclass of #GtkMisc, which implies that you can
+ * align it (center, left, right) and add padding to it, using
+ * #GtkMisc methods.
+ *
+ * #GtkImage is a "no window" widget (has no #GdkWindow of its own),
+ * so by default does not receive events. If you want to receive events
+ * on the image, such as button clicks, place the image inside a
+ * #GtkEventBox, then connect to the event signals on the event box.
+ * <example>
+ * <title>Handling button press events on a
+ * <structname>GtkImage</structname>.</title>
+ * <programlisting>
+ * static gboolean
+ * button_press_callback (GtkWidget *event_box,
+ * GdkEventButton *event,
+ * gpointer data)
+ * {
+ * g_print ("Event box clicked at coordinates %f,%f\n",
+ * event->x, event->y);
+ *
+ * /<!---->* Returning TRUE means we handled the event, so the signal
+ * * emission should be stopped (don't call any further
+ * * callbacks that may be connected). Return FALSE
+ * * to continue invoking callbacks.
+ * *<!---->/
+ * return TRUE;
+ * }
+ *
+ * static GtkWidget*
+ * create_image (void)
+ * {
+ * GtkWidget *image;
+ * GtkWidget *event_box;
+ *
+ * image = gtk_image_new_from_file ("myfile.png");
+ *
+ * event_box = gtk_event_box_new (<!-- -->);
+ *
+ * gtk_container_add (GTK_CONTAINER (event_box), image);
+ *
+ * g_signal_connect (G_OBJECT (event_box),
+ * "button_press_event",
+ * G_CALLBACK (button_press_callback),
+ * image);
+ *
+ * return image;
+ * }
+ * </programlisting>
+ * </example>
+ *
+ * When handling events on the event box, keep in mind that coordinates
+ * in the image may be different from event box coordinates due to
+ * the alignment and padding settings on the image (see #GtkMisc).
+ * The simplest way to solve this is to set the alignment to 0.0
+ * (left/top), and set the padding to zero. Then the origin of
+ * the image will be the same as the origin of the event box.
+ *
+ * Sometimes an application will want to avoid depending on external data
+ * files, such as image files. GTK+ comes with a program to avoid this,
+ * called <application>gdk-pixbuf-csource</application>. This library
+ * allows you to convert an image into a C variable declaration, which
+ * can then be loaded into a #GdkPixbuf using
+ * gdk_pixbuf_new_from_inline().
+ */
-guint
-gtk_image_get_type (void)
+struct _GtkImagePrivate
{
- static guint image_type = 0;
+ GtkIconHelper *icon_helper;
- if (!image_type)
- {
- GtkTypeInfo image_info =
- {
- "GtkImage",
- sizeof (GtkImage),
- sizeof (GtkImageClass),
- (GtkClassInitFunc) gtk_image_class_init,
- (GtkObjectInitFunc) gtk_image_init,
- /* reserved_1 */ NULL,
- /* reserved_2 */ NULL,
- (GtkClassInitFunc) NULL,
- };
+ gint animation_timeout;
+ GdkPixbufAnimationIter *animation_iter;
- image_type = gtk_type_unique (gtk_misc_get_type (), &image_info);
- }
+ gchar *filename; /* Only used with GTK_IMAGE_ANIMATION, GTK_IMAGE_PIXBUF */
+ gchar *resource_path; /* Only used with GTK_IMAGE_PIXBUF */
+};
- return image_type;
-}
+
+#define DEFAULT_ICON_SIZE GTK_ICON_SIZE_BUTTON
+static gint gtk_image_draw (GtkWidget *widget,
+ cairo_t *cr);
+static void gtk_image_unmap (GtkWidget *widget);
+static void gtk_image_unrealize (GtkWidget *widget);
+static void gtk_image_get_preferred_width (GtkWidget *widget,
+ gint *minimum,
+ gint *natural);
+static void gtk_image_get_preferred_height (GtkWidget *widget,
+ gint *minimum,
+ gint *natural);
+
+static void gtk_image_style_updated (GtkWidget *widget);
+static void gtk_image_screen_changed (GtkWidget *widget,
+ GdkScreen *prev_screen);
+static void gtk_image_finalize (GObject *object);
+static void gtk_image_reset (GtkImage *image);
+
+static void gtk_image_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gtk_image_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec);
+
+static void icon_theme_changed (GtkImage *image);
+
+enum
+{
+ PROP_0,
+ PROP_PIXBUF,
+ PROP_FILE,
+ PROP_STOCK,
+ PROP_ICON_SET,
+ PROP_ICON_SIZE,
+ PROP_PIXEL_SIZE,
+ PROP_PIXBUF_ANIMATION,
+ PROP_ICON_NAME,
+ PROP_STORAGE_TYPE,
+ PROP_GICON,
+ PROP_RESOURCE,
+ PROP_USE_FALLBACK
+};
+
+G_DEFINE_TYPE (GtkImage, gtk_image, GTK_TYPE_MISC)
static void
gtk_image_class_init (GtkImageClass *class)
{
+ GObjectClass *gobject_class;
GtkWidgetClass *widget_class;
- widget_class = (GtkWidgetClass*) class;
+ gobject_class = G_OBJECT_CLASS (class);
+
+ gobject_class->set_property = gtk_image_set_property;
+ gobject_class->get_property = gtk_image_get_property;
+ gobject_class->finalize = gtk_image_finalize;
+
+ widget_class = GTK_WIDGET_CLASS (class);
+ widget_class->draw = gtk_image_draw;
+ widget_class->get_preferred_width = gtk_image_get_preferred_width;
+ widget_class->get_preferred_height = gtk_image_get_preferred_height;
+ widget_class->unmap = gtk_image_unmap;
+ widget_class->unrealize = gtk_image_unrealize;
+ widget_class->style_updated = gtk_image_style_updated;
+ widget_class->screen_changed = gtk_image_screen_changed;
+
+ g_object_class_install_property (gobject_class,
+ PROP_PIXBUF,
+ g_param_spec_object ("pixbuf",
+ P_("Pixbuf"),
+ P_("A GdkPixbuf to display"),
+ GDK_TYPE_PIXBUF,
+ GTK_PARAM_READWRITE));
+
+ g_object_class_install_property (gobject_class,
+ PROP_FILE,
+ g_param_spec_string ("file",
+ P_("Filename"),
+ P_("Filename to load and display"),
+ NULL,
+ GTK_PARAM_READWRITE));
+
+
+ g_object_class_install_property (gobject_class,
+ PROP_STOCK,
+ g_param_spec_string ("stock",
+ P_("Stock ID"),
+ P_("Stock ID for a stock image to display"),
+ NULL,
+ GTK_PARAM_READWRITE));
+
+ g_object_class_install_property (gobject_class,
+ PROP_ICON_SET,
+ g_param_spec_boxed ("icon-set",
+ P_("Icon set"),
+ P_("Icon set to display"),
+ GTK_TYPE_ICON_SET,
+ GTK_PARAM_READWRITE));
+
+ g_object_class_install_property (gobject_class,
+ PROP_ICON_SIZE,
+ g_param_spec_int ("icon-size",
+ P_("Icon size"),
+ P_("Symbolic size to use for stock icon, icon set or named icon"),
+ 0, G_MAXINT,
+ DEFAULT_ICON_SIZE,
+ GTK_PARAM_READWRITE));
+ /**
+ * GtkImage:pixel-size:
+ *
+ * The "pixel-size" property can be used to specify a fixed size
+ * overriding the #GtkImage:icon-size property for images of type
+ * %GTK_IMAGE_ICON_NAME.
+ *
+ * Since: 2.6
+ */
+ g_object_class_install_property (gobject_class,
+ PROP_PIXEL_SIZE,
+ g_param_spec_int ("pixel-size",
+ P_("Pixel size"),
+ P_("Pixel size to use for named icon"),
+ -1, G_MAXINT,
+ -1,
+ GTK_PARAM_READWRITE));
+
+ g_object_class_install_property (gobject_class,
+ PROP_PIXBUF_ANIMATION,
+ g_param_spec_object ("pixbuf-animation",
+ P_("Animation"),
+ P_("GdkPixbufAnimation to display"),
+ GDK_TYPE_PIXBUF_ANIMATION,
+ GTK_PARAM_READWRITE));
+
+ /**
+ * GtkImage:icon-name:
+ *
+ * The name of the icon in the icon theme. If the icon theme is
+ * changed, the image will be updated automatically.
+ *
+ * Since: 2.6
+ */
+ g_object_class_install_property (gobject_class,
+ PROP_ICON_NAME,
+ g_param_spec_string ("icon-name",
+ P_("Icon Name"),
+ P_("The name of the icon from the icon theme"),
+ NULL,
+ GTK_PARAM_READWRITE));
+
+ /**
+ * GtkImage:gicon:
+ *
+ * The GIcon displayed in the GtkImage. For themed icons,
+ * If the icon theme is changed, the image will be updated
+ * automatically.
+ *
+ * Since: 2.14
+ */
+ g_object_class_install_property (gobject_class,
+ PROP_GICON,
+ g_param_spec_object ("gicon",
+ P_("Icon"),
+ P_("The GIcon being displayed"),
+ G_TYPE_ICON,
+ GTK_PARAM_READWRITE));
+
+ /**
+ * GtkImage:resource:
+ *
+ * A path to a resource file to display.
+ *
+ * Since: 3.8
+ */
+ g_object_class_install_property (gobject_class,
+ PROP_RESOURCE,
+ g_param_spec_string ("resource",
+ P_("Resource"),
+ P_("The resource path being displayed"),
+ NULL,
+ GTK_PARAM_READWRITE));
+
+ g_object_class_install_property (gobject_class,
+ PROP_STORAGE_TYPE,
+ g_param_spec_enum ("storage-type",
+ P_("Storage type"),
+ P_("The representation being used for image data"),
+ GTK_TYPE_IMAGE_TYPE,
+ GTK_IMAGE_EMPTY,
+ GTK_PARAM_READABLE));
- widget_class->expose_event = gtk_image_expose;
+ /**
+ * GtkImage:use-fallback:
+ *
+ * Whether the icon displayed in the GtkImage will use
+ * standard icon names fallback. The value of this property
+ * is only relevant for images of type %GTK_IMAGE_ICON_NAME
+ * and %GTK_IMAGE_GICON.
+ *
+ * Since: 3.0
+ */
+ g_object_class_install_property (gobject_class,
+ PROP_USE_FALLBACK,
+ g_param_spec_boolean ("use-fallback",
+ P_("Use Fallback"),
+ P_("Whether to use icon names fallback"),
+ FALSE,
+ GTK_PARAM_READWRITE));
+
+ g_type_class_add_private (class, sizeof (GtkImagePrivate));
+
+ gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_IMAGE_ACCESSIBLE);
}
static void
gtk_image_init (GtkImage *image)
{
- GTK_WIDGET_SET_FLAGS (image, GTK_NO_WINDOW);
+ GtkImagePrivate *priv;
+
+ image->priv = G_TYPE_INSTANCE_GET_PRIVATE (image,
+ GTK_TYPE_IMAGE,
+ GtkImagePrivate);
+ priv = image->priv;
+
+ gtk_widget_set_has_window (GTK_WIDGET (image), FALSE);
+ priv->icon_helper = _gtk_icon_helper_new ();
+
+ priv->filename = NULL;
+}
+
+static void
+gtk_image_finalize (GObject *object)
+{
+ GtkImage *image = GTK_IMAGE (object);
+
+ g_clear_object (&image->priv->icon_helper);
+
+ g_free (image->priv->filename);
+
+ G_OBJECT_CLASS (gtk_image_parent_class)->finalize (object);
+};
+
+static void
+gtk_image_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GtkImage *image = GTK_IMAGE (object);
+ GtkImagePrivate *priv = image->priv;
+ GtkIconSize icon_size = _gtk_icon_helper_get_icon_size (priv->icon_helper);
+
+ if (icon_size == GTK_ICON_SIZE_INVALID)
+ icon_size = DEFAULT_ICON_SIZE;
+
+ switch (prop_id)
+ {
+ case PROP_PIXBUF:
+ gtk_image_set_from_pixbuf (image,
+ g_value_get_object (value));
+ break;
+ case PROP_FILE:
+ gtk_image_set_from_file (image, g_value_get_string (value));
+ break;
+ case PROP_STOCK:
+ gtk_image_set_from_stock (image, g_value_get_string (value),
+ icon_size);
+ break;
+ case PROP_ICON_SET:
+ gtk_image_set_from_icon_set (image, g_value_get_boxed (value),
+ icon_size);
+ break;
+ case PROP_ICON_SIZE:
+ _gtk_icon_helper_set_icon_size (priv->icon_helper, g_value_get_int (value));
+ break;
+ case PROP_PIXEL_SIZE:
+ gtk_image_set_pixel_size (image, g_value_get_int (value));
+ break;
+ case PROP_PIXBUF_ANIMATION:
+ gtk_image_set_from_animation (image,
+ g_value_get_object (value));
+ break;
+ case PROP_ICON_NAME:
+ gtk_image_set_from_icon_name (image, g_value_get_string (value),
+ icon_size);
+ break;
+ case PROP_GICON:
+ gtk_image_set_from_gicon (image, g_value_get_object (value),
+ icon_size);
+ break;
+ case PROP_RESOURCE:
+ gtk_image_set_from_resource (image, g_value_get_string (value));
+ break;
+
+ case PROP_USE_FALLBACK:
+ _gtk_icon_helper_set_use_fallback (priv->icon_helper, g_value_get_boolean (value));
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gtk_image_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GtkImage *image = GTK_IMAGE (object);
+ GtkImagePrivate *priv = image->priv;
+
+ switch (prop_id)
+ {
+ case PROP_PIXBUF:
+ g_value_set_object (value, _gtk_icon_helper_peek_pixbuf (priv->icon_helper));
+ break;
+ case PROP_FILE:
+ g_value_set_string (value, priv->filename);
+ break;
+ case PROP_STOCK:
+ g_value_set_string (value, _gtk_icon_helper_get_stock_id (priv->icon_helper));
+ break;
+ case PROP_ICON_SET:
+ g_value_set_boxed (value, _gtk_icon_helper_peek_icon_set (priv->icon_helper));
+ break;
+ case PROP_ICON_SIZE:
+ g_value_set_int (value, _gtk_icon_helper_get_icon_size (priv->icon_helper));
+ break;
+ case PROP_PIXEL_SIZE:
+ g_value_set_int (value, _gtk_icon_helper_get_pixel_size (priv->icon_helper));
+ break;
+ case PROP_PIXBUF_ANIMATION:
+ g_value_set_object (value, _gtk_icon_helper_peek_animation (priv->icon_helper));
+ break;
+ case PROP_ICON_NAME:
+ g_value_set_string (value, _gtk_icon_helper_get_icon_name (priv->icon_helper));
+ break;
+ case PROP_GICON:
+ g_value_set_object (value, _gtk_icon_helper_peek_gicon (priv->icon_helper));
+ break;
+ case PROP_RESOURCE:
+ g_value_set_string (value, priv->resource_path);
+ break;
+ case PROP_USE_FALLBACK:
+ g_value_set_boolean (value, _gtk_icon_helper_get_use_fallback (priv->icon_helper));
+ break;
+ case PROP_STORAGE_TYPE:
+ g_value_set_enum (value, _gtk_icon_helper_get_storage_type (priv->icon_helper));
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+
+/**
+ * gtk_image_new_from_file:
+ * @filename: (type filename): a filename
+ *
+ * Creates a new #GtkImage displaying the file @filename. If the file
+ * isn't found or can't be loaded, the resulting #GtkImage will
+ * display a "broken image" icon. This function never returns %NULL,
+ * it always returns a valid #GtkImage widget.
+ *
+ * If the file contains an animation, the image will contain an
+ * animation.
+ *
+ * If you need to detect failures to load the file, use
+ * gdk_pixbuf_new_from_file() to load the file yourself, then create
+ * the #GtkImage from the pixbuf. (Or for animations, use
+ * gdk_pixbuf_animation_new_from_file()).
+ *
+ * The storage type (gtk_image_get_storage_type()) of the returned
+ * image is not defined, it will be whatever is appropriate for
+ * displaying the file.
+ *
+ * Return value: a new #GtkImage
+ **/
+GtkWidget*
+gtk_image_new_from_file (const gchar *filename)
+{
+ GtkImage *image;
+
+ image = g_object_new (GTK_TYPE_IMAGE, NULL);
+
+ gtk_image_set_from_file (image, filename);
+
+ return GTK_WIDGET (image);
+}
+
+/**
+ * gtk_image_new_from_resource:
+ * @resource_path: a resource path
+ *
+ * Creates a new #GtkImage displaying the resource file @resource_path. If the file
+ * isn't found or can't be loaded, the resulting #GtkImage will
+ * display a "broken image" icon. This function never returns %NULL,
+ * it always returns a valid #GtkImage widget.
+ *
+ * If the file contains an animation, the image will contain an
+ * animation.
+ *
+ * If you need to detect failures to load the file, use
+ * gdk_pixbuf_new_from_file() to load the file yourself, then create
+ * the #GtkImage from the pixbuf. (Or for animations, use
+ * gdk_pixbuf_animation_new_from_file()).
+ *
+ * The storage type (gtk_image_get_storage_type()) of the returned
+ * image is not defined, it will be whatever is appropriate for
+ * displaying the file.
+ *
+ * Return value: a new #GtkImage
+ *
+ * Since: 3.4
+ **/
+GtkWidget*
+gtk_image_new_from_resource (const gchar *resource_path)
+{
+ GtkImage *image;
+
+ image = g_object_new (GTK_TYPE_IMAGE, NULL);
+
+ gtk_image_set_from_resource (image, resource_path);
+
+ return GTK_WIDGET (image);
+}
+
+/**
+ * gtk_image_new_from_pixbuf:
+ * @pixbuf: (allow-none): a #GdkPixbuf, or %NULL
+ *
+ * Creates a new #GtkImage displaying @pixbuf.
+ * The #GtkImage does not assume a reference to the
+ * pixbuf; you still need to unref it if you own references.
+ * #GtkImage will add its own reference rather than adopting yours.
+ *
+ * Note that this function just creates an #GtkImage from the pixbuf. The
+ * #GtkImage created will not react to state changes. Should you want that,
+ * you should use gtk_image_new_from_icon_set().
+ *
+ * Return value: a new #GtkImage
+ **/
+GtkWidget*
+gtk_image_new_from_pixbuf (GdkPixbuf *pixbuf)
+{
+ GtkImage *image;
+
+ image = g_object_new (GTK_TYPE_IMAGE, NULL);
+
+ gtk_image_set_from_pixbuf (image, pixbuf);
+
+ return GTK_WIDGET (image);
+}
+
+/**
+ * gtk_image_new_from_stock:
+ * @stock_id: a stock icon name
+ * @size: (type int): a stock icon size
+ *
+ * Creates a #GtkImage displaying a stock icon. Sample stock icon
+ * names are #GTK_STOCK_OPEN, #GTK_STOCK_QUIT. Sample stock sizes
+ * are #GTK_ICON_SIZE_MENU, #GTK_ICON_SIZE_SMALL_TOOLBAR. If the stock
+ * icon name isn't known, the image will be empty.
+ * You can register your own stock icon names, see
+ * gtk_icon_factory_add_default() and gtk_icon_factory_add().
+ *
+ * Return value: a new #GtkImage displaying the stock icon
+ **/
+GtkWidget*
+gtk_image_new_from_stock (const gchar *stock_id,
+ GtkIconSize size)
+{
+ GtkImage *image;
+
+ image = g_object_new (GTK_TYPE_IMAGE, NULL);
+
+ gtk_image_set_from_stock (image, stock_id, size);
+
+ return GTK_WIDGET (image);
+}
+
+/**
+ * gtk_image_new_from_icon_set:
+ * @icon_set: a #GtkIconSet
+ * @size: (type int): a stock icon size
+ *
+ * Creates a #GtkImage displaying an icon set. Sample stock sizes are
+ * #GTK_ICON_SIZE_MENU, #GTK_ICON_SIZE_SMALL_TOOLBAR. Instead of using
+ * this function, usually it's better to create a #GtkIconFactory, put
+ * your icon sets in the icon factory, add the icon factory to the
+ * list of default factories with gtk_icon_factory_add_default(), and
+ * then use gtk_image_new_from_stock(). This will allow themes to
+ * override the icon you ship with your application.
+ *
+ * The #GtkImage does not assume a reference to the
+ * icon set; you still need to unref it if you own references.
+ * #GtkImage will add its own reference rather than adopting yours.
+ *
+ * Return value: a new #GtkImage
+ **/
+GtkWidget*
+gtk_image_new_from_icon_set (GtkIconSet *icon_set,
+ GtkIconSize size)
+{
+ GtkImage *image;
+
+ image = g_object_new (GTK_TYPE_IMAGE, NULL);
+
+ gtk_image_set_from_icon_set (image, icon_set, size);
+
+ return GTK_WIDGET (image);
+}
+
+/**
+ * gtk_image_new_from_animation:
+ * @animation: an animation
+ *
+ * Creates a #GtkImage displaying the given animation.
+ * The #GtkImage does not assume a reference to the
+ * animation; you still need to unref it if you own references.
+ * #GtkImage will add its own reference rather than adopting yours.
+ *
+ * Note that the animation frames are shown using a timeout with
+ * #G_PRIORITY_DEFAULT. When using animations to indicate busyness,
+ * keep in mind that the animation will only be shown if the main loop
+ * is not busy with something that has a higher priority.
+ *
+ * Return value: a new #GtkImage widget
+ **/
+GtkWidget*
+gtk_image_new_from_animation (GdkPixbufAnimation *animation)
+{
+ GtkImage *image;
+
+ g_return_val_if_fail (GDK_IS_PIXBUF_ANIMATION (animation), NULL);
+
+ image = g_object_new (GTK_TYPE_IMAGE, NULL);
- image->image = NULL;
- image->mask = NULL;
+ gtk_image_set_from_animation (image, animation);
+
+ return GTK_WIDGET (image);
}
+/**
+ * gtk_image_new_from_icon_name:
+ * @icon_name: an icon name
+ * @size: (type int): a stock icon size
+ *
+ * Creates a #GtkImage displaying an icon from the current icon theme.
+ * If the icon name isn't known, a "broken image" icon will be
+ * displayed instead. If the current icon theme is changed, the icon
+ * will be updated appropriately.
+ *
+ * Return value: a new #GtkImage displaying the themed icon
+ *
+ * Since: 2.6
+ **/
GtkWidget*
-gtk_image_new (GdkImage *val,
- GdkBitmap *mask)
+gtk_image_new_from_icon_name (const gchar *icon_name,
+ GtkIconSize size)
{
GtkImage *image;
- g_return_val_if_fail (val != NULL, NULL);
+ image = g_object_new (GTK_TYPE_IMAGE, NULL);
+
+ gtk_image_set_from_icon_name (image, icon_name, size);
+
+ return GTK_WIDGET (image);
+}
+
+/**
+ * gtk_image_new_from_gicon:
+ * @icon: an icon
+ * @size: (type int): a stock icon size
+ *
+ * Creates a #GtkImage displaying an icon from the current icon theme.
+ * If the icon name isn't known, a "broken image" icon will be
+ * displayed instead. If the current icon theme is changed, the icon
+ * will be updated appropriately.
+ *
+ * Return value: a new #GtkImage displaying the themed icon
+ *
+ * Since: 2.14
+ **/
+GtkWidget*
+gtk_image_new_from_gicon (GIcon *icon,
+ GtkIconSize size)
+{
+ GtkImage *image;
- image = gtk_type_new (gtk_image_get_type ());
+ image = g_object_new (GTK_TYPE_IMAGE, NULL);
- gtk_image_set (image, val, mask);
+ gtk_image_set_from_gicon (image, icon, size);
return GTK_WIDGET (image);
}
+/**
+ * gtk_image_set_from_file:
+ * @image: a #GtkImage
+ * @filename: (type filename) (allow-none): a filename or %NULL
+ *
+ * See gtk_image_new_from_file() for details.
+ **/
void
-gtk_image_set (GtkImage *image,
- GdkImage *val,
- GdkBitmap *mask)
+gtk_image_set_from_file (GtkImage *image,
+ const gchar *filename)
{
- g_return_if_fail (image != NULL);
+ GtkImagePrivate *priv;
+ GdkPixbufAnimation *anim;
+
g_return_if_fail (GTK_IS_IMAGE (image));
- image->image = val;
- image->mask = mask;
+ priv = image->priv;
+
+ g_object_freeze_notify (G_OBJECT (image));
+
+ gtk_image_clear (image);
- if (image->image)
+ if (filename == NULL)
{
- GTK_WIDGET (image)->requisition.width = image->image->width + GTK_MISC (image)->xpad * 2;
- GTK_WIDGET (image)->requisition.height = image->image->height + GTK_MISC (image)->ypad * 2;
+ priv->filename = NULL;
+ g_object_thaw_notify (G_OBJECT (image));
+ return;
}
+
+ anim = gdk_pixbuf_animation_new_from_file (filename, NULL);
+
+ if (anim == NULL)
+ {
+ gtk_image_set_from_stock (image,
+ GTK_STOCK_MISSING_IMAGE,
+ DEFAULT_ICON_SIZE);
+ g_object_thaw_notify (G_OBJECT (image));
+ return;
+ }
+
+ /* We could just unconditionally set_from_animation,
+ * but it's nicer for memory if we toss the animation
+ * if it's just a single pixbuf
+ */
+
+ if (gdk_pixbuf_animation_is_static_image (anim))
+ gtk_image_set_from_pixbuf (image,
+ gdk_pixbuf_animation_get_static_image (anim));
else
+ gtk_image_set_from_animation (image, anim);
+
+ g_object_unref (anim);
+
+ priv->filename = g_strdup (filename);
+
+ g_object_thaw_notify (G_OBJECT (image));
+}
+
+/**
+ * gtk_image_set_from_resource:
+ * @image: a #GtkImage
+ * @resource_path: (allow-none): a resource path or %NULL
+ *
+ * See gtk_image_new_from_resource() for details.
+ **/
+void
+gtk_image_set_from_resource (GtkImage *image,
+ const gchar *resource_path)
+{
+ GtkImagePrivate *priv;
+ GdkPixbufAnimation *animation;
+
+ g_return_if_fail (GTK_IS_IMAGE (image));
+
+ priv = image->priv;
+
+ g_object_freeze_notify (G_OBJECT (image));
+
+ gtk_image_clear (image);
+
+ if (resource_path == NULL)
+ {
+ g_object_thaw_notify (G_OBJECT (image));
+ return;
+ }
+
+ animation = gdk_pixbuf_animation_new_from_resource (resource_path, NULL);
+
+ if (animation == NULL)
{
- GTK_WIDGET (image)->requisition.width = 0;
- GTK_WIDGET (image)->requisition.height = 0;
+ gtk_image_set_from_stock (image,
+ GTK_STOCK_MISSING_IMAGE,
+ DEFAULT_ICON_SIZE);
+ g_object_thaw_notify (G_OBJECT (image));
+ return;
}
- if (GTK_WIDGET_VISIBLE (image))
- gtk_widget_queue_resize (GTK_WIDGET (image));
+ priv->resource_path = g_strdup (resource_path);
+
+ if (gdk_pixbuf_animation_is_static_image (animation))
+ gtk_image_set_from_pixbuf (image, gdk_pixbuf_animation_get_static_image (animation));
+ else
+ gtk_image_set_from_animation (image, animation);
+
+ g_object_notify (G_OBJECT (image), "resource");
+
+ g_object_unref (animation);
+
+ g_object_thaw_notify (G_OBJECT (image));
}
+
+/**
+ * gtk_image_set_from_pixbuf:
+ * @image: a #GtkImage
+ * @pixbuf: (allow-none): a #GdkPixbuf or %NULL
+ *
+ * See gtk_image_new_from_pixbuf() for details.
+ **/
void
-gtk_image_get (GtkImage *image,
- GdkImage **val,
- GdkBitmap **mask)
+gtk_image_set_from_pixbuf (GtkImage *image,
+ GdkPixbuf *pixbuf)
{
- g_return_if_fail (image != NULL);
+ GtkImagePrivate *priv;
+
g_return_if_fail (GTK_IS_IMAGE (image));
+ g_return_if_fail (pixbuf == NULL ||
+ GDK_IS_PIXBUF (pixbuf));
+
+ priv = image->priv;
- if (val)
- *val = image->image;
- if (mask)
- *mask = image->mask;
+ g_object_freeze_notify (G_OBJECT (image));
+
+ gtk_image_clear (image);
+
+ if (pixbuf != NULL)
+ _gtk_icon_helper_set_pixbuf (priv->icon_helper, pixbuf);
+
+ g_object_notify (G_OBJECT (image), "pixbuf");
+
+ g_object_thaw_notify (G_OBJECT (image));
}
+/**
+ * gtk_image_set_from_stock:
+ * @image: a #GtkImage
+ * @stock_id: a stock icon name
+ * @size: (type int): a stock icon size
+ *
+ * See gtk_image_new_from_stock() for details.
+ **/
+void
+gtk_image_set_from_stock (GtkImage *image,
+ const gchar *stock_id,
+ GtkIconSize size)
+{
+ GtkImagePrivate *priv;
+ gchar *new_id;
+
+ g_return_if_fail (GTK_IS_IMAGE (image));
-static gint
-gtk_image_expose (GtkWidget *widget,
- GdkEventExpose *event)
+ priv = image->priv;
+
+ g_object_freeze_notify (G_OBJECT (image));
+
+ new_id = g_strdup (stock_id);
+ gtk_image_clear (image);
+
+ if (new_id)
+ {
+ _gtk_icon_helper_set_stock_id (priv->icon_helper, new_id, size);
+ g_free (new_id);
+ }
+
+ g_object_notify (G_OBJECT (image), "stock");
+ g_object_notify (G_OBJECT (image), "icon-size");
+
+ g_object_thaw_notify (G_OBJECT (image));
+}
+
+/**
+ * gtk_image_set_from_icon_set:
+ * @image: a #GtkImage
+ * @icon_set: a #GtkIconSet
+ * @size: (type int): a stock icon size
+ *
+ * See gtk_image_new_from_icon_set() for details.
+ **/
+void
+gtk_image_set_from_icon_set (GtkImage *image,
+ GtkIconSet *icon_set,
+ GtkIconSize size)
{
- g_return_val_if_fail (widget != NULL, FALSE);
- g_return_val_if_fail (GTK_IS_IMAGE (widget), FALSE);
- g_return_val_if_fail (event != NULL, FALSE);
-
- if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_MAPPED (widget))
- {
- GtkImage *image;
- GtkMisc *misc;
- GdkRectangle area, image_bound, intersection;
- gint x, y;
-
- image = GTK_IMAGE (widget);
- misc = GTK_MISC (widget);
-
- x = (widget->allocation.x * (1.0 - misc->xalign) +
- (widget->allocation.x + widget->allocation.width
- - (widget->requisition.width - misc->xpad * 2)) *
- misc->xalign) + 0.5;
- y = (widget->allocation.y * (1.0 - misc->yalign) +
- (widget->allocation.y + widget->allocation.height
- - (widget->requisition.height - misc->ypad * 2)) *
- misc->yalign) + 0.5;
-
- if (image->mask)
- {
- gdk_gc_set_clip_mask (widget->style->black_gc, image->mask);
- gdk_gc_set_clip_origin (widget->style->black_gc, x, y);
- }
-
- image_bound.x = x;
- image_bound.y = y;
- image_bound.width = image->image->width;
- image_bound.height = image->image->height;
-
- area = event->area;
-
- if(gdk_rectangle_intersect(&image_bound, &area, &intersection))
+ GtkImagePrivate *priv;
+
+ g_return_if_fail (GTK_IS_IMAGE (image));
+
+ priv = image->priv;
+
+ g_object_freeze_notify (G_OBJECT (image));
+
+ if (icon_set)
+ gtk_icon_set_ref (icon_set);
+
+ gtk_image_clear (image);
+
+ if (icon_set)
+ {
+ _gtk_icon_helper_set_icon_set (priv->icon_helper, icon_set, size);
+ gtk_icon_set_unref (icon_set);
+ }
+
+ g_object_notify (G_OBJECT (image), "icon-set");
+ g_object_notify (G_OBJECT (image), "icon-size");
+
+ g_object_thaw_notify (G_OBJECT (image));
+}
+
+/**
+ * gtk_image_set_from_animation:
+ * @image: a #GtkImage
+ * @animation: the #GdkPixbufAnimation
+ *
+ * Causes the #GtkImage to display the given animation (or display
+ * nothing, if you set the animation to %NULL).
+ **/
+void
+gtk_image_set_from_animation (GtkImage *image,
+ GdkPixbufAnimation *animation)
+{
+ GtkImagePrivate *priv;
+
+ g_return_if_fail (GTK_IS_IMAGE (image));
+ g_return_if_fail (animation == NULL ||
+ GDK_IS_PIXBUF_ANIMATION (animation));
+
+ priv = image->priv;
+
+ g_object_freeze_notify (G_OBJECT (image));
+
+ if (animation)
+ g_object_ref (animation);
+
+ gtk_image_clear (image);
+
+ if (animation != NULL)
+ {
+ _gtk_icon_helper_set_animation (priv->icon_helper, animation);
+ g_object_unref (animation);
+ }
+
+ g_object_notify (G_OBJECT (image), "pixbuf-animation");
+
+ g_object_thaw_notify (G_OBJECT (image));
+}
+
+/**
+ * gtk_image_set_from_icon_name:
+ * @image: a #GtkImage
+ * @icon_name: an icon name
+ * @size: (type int): an icon size
+ *
+ * See gtk_image_new_from_icon_name() for details.
+ *
+ * Since: 2.6
+ **/
+void
+gtk_image_set_from_icon_name (GtkImage *image,
+ const gchar *icon_name,
+ GtkIconSize size)
+{
+ GtkImagePrivate *priv;
+ gchar *new_name;
+
+ g_return_if_fail (GTK_IS_IMAGE (image));
+
+ priv = image->priv;
+
+ g_object_freeze_notify (G_OBJECT (image));
+
+ new_name = g_strdup (icon_name);
+ gtk_image_clear (image);
+
+ if (new_name)
+ {
+ _gtk_icon_helper_set_icon_name (priv->icon_helper, new_name, size);
+ g_free (new_name);
+ }
+
+ g_object_notify (G_OBJECT (image), "icon-name");
+ g_object_notify (G_OBJECT (image), "icon-size");
+
+ g_object_thaw_notify (G_OBJECT (image));
+}
+
+/**
+ * gtk_image_set_from_gicon:
+ * @image: a #GtkImage
+ * @icon: an icon
+ * @size: (type int): an icon size
+ *
+ * See gtk_image_new_from_gicon() for details.
+ *
+ * Since: 2.14
+ **/
+void
+gtk_image_set_from_gicon (GtkImage *image,
+ GIcon *icon,
+ GtkIconSize size)
+{
+ GtkImagePrivate *priv;
+
+ g_return_if_fail (GTK_IS_IMAGE (image));
+
+ priv = image->priv;
+
+ g_object_freeze_notify (G_OBJECT (image));
+
+ if (icon)
+ g_object_ref (icon);
+
+ gtk_image_clear (image);
+
+ if (icon)
+ {
+ _gtk_icon_helper_set_gicon (priv->icon_helper, icon, size);
+ g_object_unref (icon);
+ }
+
+ g_object_notify (G_OBJECT (image), "gicon");
+ g_object_notify (G_OBJECT (image), "icon-size");
+
+ g_object_thaw_notify (G_OBJECT (image));
+}
+
+/**
+ * gtk_image_get_storage_type:
+ * @image: a #GtkImage
+ *
+ * Gets the type of representation being used by the #GtkImage
+ * to store image data. If the #GtkImage has no image data,
+ * the return value will be %GTK_IMAGE_EMPTY.
+ *
+ * Return value: image representation being used
+ **/
+GtkImageType
+gtk_image_get_storage_type (GtkImage *image)
+{
+ g_return_val_if_fail (GTK_IS_IMAGE (image), GTK_IMAGE_EMPTY);
+
+ return _gtk_icon_helper_get_storage_type (image->priv->icon_helper);
+}
+
+/**
+ * gtk_image_get_pixbuf:
+ * @image: a #GtkImage
+ *
+ * Gets the #GdkPixbuf being displayed by the #GtkImage.
+ * The storage type of the image must be %GTK_IMAGE_EMPTY or
+ * %GTK_IMAGE_PIXBUF (see gtk_image_get_storage_type()).
+ * The caller of this function does not own a reference to the
+ * returned pixbuf.
+ *
+ * Return value: (transfer none): the displayed pixbuf, or %NULL if
+ * the image is empty
+ **/
+GdkPixbuf*
+gtk_image_get_pixbuf (GtkImage *image)
+{
+ g_return_val_if_fail (GTK_IS_IMAGE (image), NULL);
+
+ return _gtk_icon_helper_peek_pixbuf (image->priv->icon_helper);
+}
+
+/**
+ * gtk_image_get_stock:
+ * @image: a #GtkImage
+ * @stock_id: (out) (transfer none) (allow-none): place to store a
+ * stock icon name, or %NULL
+ * @size: (out) (allow-none) (type int): place to store a stock icon
+ * size, or %NULL
+ *
+ * Gets the stock icon name and size being displayed by the #GtkImage.
+ * The storage type of the image must be %GTK_IMAGE_EMPTY or
+ * %GTK_IMAGE_STOCK (see gtk_image_get_storage_type()).
+ * The returned string is owned by the #GtkImage and should not
+ * be freed.
+ **/
+void
+gtk_image_get_stock (GtkImage *image,
+ gchar **stock_id,
+ GtkIconSize *size)
+{
+ GtkImagePrivate *priv;
+
+ g_return_if_fail (GTK_IS_IMAGE (image));
+
+ priv = image->priv;
+
+ if (stock_id)
+ *stock_id = (gchar *) _gtk_icon_helper_get_stock_id (priv->icon_helper);
+
+ if (size)
+ *size = _gtk_icon_helper_get_icon_size (priv->icon_helper);
+}
+
+/**
+ * gtk_image_get_icon_set:
+ * @image: a #GtkImage
+ * @icon_set: (out) (transfer none) (allow-none): location to store a
+ * #GtkIconSet, or %NULL
+ * @size: (out) (allow-none) (type int): location to store a stock
+ * icon size, or %NULL
+ *
+ * Gets the icon set and size being displayed by the #GtkImage.
+ * The storage type of the image must be %GTK_IMAGE_EMPTY or
+ * %GTK_IMAGE_ICON_SET (see gtk_image_get_storage_type()).
+ **/
+void
+gtk_image_get_icon_set (GtkImage *image,
+ GtkIconSet **icon_set,
+ GtkIconSize *size)
+{
+ GtkImagePrivate *priv;
+
+ g_return_if_fail (GTK_IS_IMAGE (image));
+
+ priv = image->priv;
+
+ if (icon_set)
+ *icon_set = _gtk_icon_helper_peek_icon_set (priv->icon_helper);
+
+ if (size)
+ *size = _gtk_icon_helper_get_icon_size (priv->icon_helper);
+}
+
+/**
+ * gtk_image_get_animation:
+ * @image: a #GtkImage
+ *
+ * Gets the #GdkPixbufAnimation being displayed by the #GtkImage.
+ * The storage type of the image must be %GTK_IMAGE_EMPTY or
+ * %GTK_IMAGE_ANIMATION (see gtk_image_get_storage_type()).
+ * The caller of this function does not own a reference to the
+ * returned animation.
+ *
+ * Return value: (transfer none): the displayed animation, or %NULL if
+ * the image is empty
+ **/
+GdkPixbufAnimation*
+gtk_image_get_animation (GtkImage *image)
+{
+ GtkImagePrivate *priv;
+
+ g_return_val_if_fail (GTK_IS_IMAGE (image), NULL);
+
+ priv = image->priv;
+
+ return _gtk_icon_helper_peek_animation (priv->icon_helper);
+}
+
+/**
+ * gtk_image_get_icon_name:
+ * @image: a #GtkImage
+ * @icon_name: (out) (transfer none) (allow-none): place to store an
+ * icon name, or %NULL
+ * @size: (out) (allow-none) (type int): place to store an icon size,
+ * or %NULL
+ *
+ * Gets the icon name and size being displayed by the #GtkImage.
+ * The storage type of the image must be %GTK_IMAGE_EMPTY or
+ * %GTK_IMAGE_ICON_NAME (see gtk_image_get_storage_type()).
+ * The returned string is owned by the #GtkImage and should not
+ * be freed.
+ *
+ * Since: 2.6
+ **/
+void
+gtk_image_get_icon_name (GtkImage *image,
+ const gchar **icon_name,
+ GtkIconSize *size)
+{
+ GtkImagePrivate *priv;
+
+ g_return_if_fail (GTK_IS_IMAGE (image));
+
+ priv = image->priv;
+
+ if (icon_name)
+ *icon_name = _gtk_icon_helper_get_icon_name (priv->icon_helper);
+
+ if (size)
+ *size = _gtk_icon_helper_get_icon_size (priv->icon_helper);
+}
+
+/**
+ * gtk_image_get_gicon:
+ * @image: a #GtkImage
+ * @gicon: (out) (transfer none) (allow-none): place to store a
+ * #GIcon, or %NULL
+ * @size: (out) (allow-none) (type int): place to store an icon size,
+ * or %NULL
+ *
+ * Gets the #GIcon and size being displayed by the #GtkImage.
+ * The storage type of the image must be %GTK_IMAGE_EMPTY or
+ * %GTK_IMAGE_GICON (see gtk_image_get_storage_type()).
+ * The caller of this function does not own a reference to the
+ * returned #GIcon.
+ *
+ * Since: 2.14
+ **/
+void
+gtk_image_get_gicon (GtkImage *image,
+ GIcon **gicon,
+ GtkIconSize *size)
+{
+ GtkImagePrivate *priv;
+
+ g_return_if_fail (GTK_IS_IMAGE (image));
+
+ priv = image->priv;
+
+ if (gicon)
+ *gicon = _gtk_icon_helper_peek_gicon (priv->icon_helper);
+
+ if (size)
+ *size = _gtk_icon_helper_get_icon_size (priv->icon_helper);
+}
+
+/**
+ * gtk_image_new:
+ *
+ * Creates a new empty #GtkImage widget.
+ *
+ * Return value: a newly created #GtkImage widget.
+ **/
+GtkWidget*
+gtk_image_new (void)
+{
+ return g_object_new (GTK_TYPE_IMAGE, NULL);
+}
+
+static void
+gtk_image_reset_anim_iter (GtkImage *image)
+{
+ GtkImagePrivate *priv = image->priv;
+
+ if (gtk_image_get_storage_type (image) == GTK_IMAGE_ANIMATION)
+ {
+ /* Reset the animation */
+ if (priv->animation_timeout)
{
- gdk_draw_image (widget->window,
- widget->style->black_gc,
- image->image,
- image_bound.x - x, image_bound.y - y,
- image_bound.x, image_bound.y,
- image_bound.width, image_bound.height);
+ g_source_remove (priv->animation_timeout);
+ priv->animation_timeout = 0;
}
-
- if (image->mask)
- {
- gdk_gc_set_clip_mask (widget->style->black_gc, NULL);
- gdk_gc_set_clip_origin (widget->style->black_gc, 0, 0);
- }
+
+ g_clear_object (&priv->animation_iter);
+ }
+}
+
+static void
+gtk_image_unmap (GtkWidget *widget)
+{
+ gtk_image_reset_anim_iter (GTK_IMAGE (widget));
+
+ GTK_WIDGET_CLASS (gtk_image_parent_class)->unmap (widget);
+}
+
+static void
+gtk_image_unrealize (GtkWidget *widget)
+{
+ gtk_image_reset_anim_iter (GTK_IMAGE (widget));
+
+ GTK_WIDGET_CLASS (gtk_image_parent_class)->unrealize (widget);
+}
+
+static gint
+animation_timeout (gpointer data)
+{
+ GtkImage *image = GTK_IMAGE (data);
+ GtkImagePrivate *priv = image->priv;
+ int delay;
+
+ priv->animation_timeout = 0;
+
+ gdk_pixbuf_animation_iter_advance (priv->animation_iter, NULL);
+
+ delay = gdk_pixbuf_animation_iter_get_delay_time (priv->animation_iter);
+ if (delay >= 0)
+ {
+ GtkWidget *widget = GTK_WIDGET (image);
+
+ priv->animation_timeout =
+ gdk_threads_add_timeout (delay, animation_timeout, image);
+
+ gtk_widget_queue_draw (widget);
}
return FALSE;
}
+
+static GdkPixbuf *
+get_animation_frame (GtkImage *image)
+{
+ GtkImagePrivate *priv = image->priv;
+
+ if (priv->animation_iter == NULL)
+ {
+ int delay;
+
+ priv->animation_iter =
+ gdk_pixbuf_animation_get_iter (_gtk_icon_helper_peek_animation (priv->icon_helper), NULL);
+
+ delay = gdk_pixbuf_animation_iter_get_delay_time (priv->animation_iter);
+ if (delay >= 0)
+ priv->animation_timeout =
+ gdk_threads_add_timeout (delay, animation_timeout, image);
+ }
+
+ /* don't advance the anim iter here, or we could get frame changes between two
+ * exposes of different areas.
+ */
+ return g_object_ref (gdk_pixbuf_animation_iter_get_pixbuf (priv->animation_iter));
+}
+
+static void
+gtk_image_get_preferred_size (GtkImage *image,
+ gint *width_out,
+ gint *height_out)
+{
+ GtkImagePrivate *priv = image->priv;
+ gint width, height;
+ GtkBorder border;
+ GtkStyleContext *context;
+
+ context = gtk_widget_get_style_context (GTK_WIDGET (image));
+ _gtk_icon_helper_get_size (priv->icon_helper, context, &width, &height);
+ _gtk_misc_get_padding_and_border (GTK_MISC (image), &border);
+
+ width += border.left + border.right;
+ height += border.top + border.bottom;
+
+ if (width_out)
+ *width_out = width;
+ if (height_out)
+ *height_out = height;
+}
+
+static gint
+gtk_image_draw (GtkWidget *widget,
+ cairo_t *cr)
+{
+ GtkImage *image;
+ GtkImagePrivate *priv;
+ GtkMisc *misc;
+ GtkStyleContext *context;
+ gint x, y, width, height;
+ gfloat xalign, yalign;
+ GtkBorder border;
+
+ g_return_val_if_fail (GTK_IS_IMAGE (widget), FALSE);
+
+ image = GTK_IMAGE (widget);
+ misc = GTK_MISC (image);
+ priv = image->priv;
+
+ context = gtk_widget_get_style_context (widget);
+
+ gtk_render_background (context, cr,
+ 0, 0,
+ gtk_widget_get_allocated_width (widget), gtk_widget_get_allocated_height (widget));
+ gtk_render_frame (context, cr,
+ 0, 0,
+ gtk_widget_get_allocated_width (widget), gtk_widget_get_allocated_height (widget));
+
+ gtk_misc_get_alignment (misc, &xalign, &yalign);
+ gtk_image_get_preferred_size (image, &width, &height);
+ _gtk_misc_get_padding_and_border (misc, &border);
+
+ if (gtk_widget_get_direction (widget) != GTK_TEXT_DIR_LTR)
+ xalign = 1.0 - xalign;
+
+ x = floor ((gtk_widget_get_allocated_width (widget) - width) * xalign) + border.left;
+ y = floor ((gtk_widget_get_allocated_height (widget) - height) * yalign) + border.top;
+
+ if (gtk_image_get_storage_type (image) == GTK_IMAGE_ANIMATION)
+ {
+ GdkPixbuf *pixbuf = get_animation_frame (image);
+ gtk_render_icon (context, cr,
+ pixbuf,
+ x, y);
+ g_object_unref (pixbuf);
+ }
+ else
+ {
+ _gtk_icon_helper_draw (priv->icon_helper,
+ context, cr,
+ x, y);
+ }
+
+ return FALSE;
+}
+
+static void
+gtk_image_reset (GtkImage *image)
+{
+ GtkImagePrivate *priv = image->priv;
+ GtkImageType storage_type;
+
+ g_object_freeze_notify (G_OBJECT (image));
+ storage_type = gtk_image_get_storage_type (image);
+
+ if (storage_type != GTK_IMAGE_EMPTY)
+ g_object_notify (G_OBJECT (image), "storage-type");
+
+ g_object_notify (G_OBJECT (image), "icon-size");
+
+ switch (storage_type)
+ {
+ case GTK_IMAGE_PIXBUF:
+ g_object_notify (G_OBJECT (image), "pixbuf");
+ break;
+ case GTK_IMAGE_STOCK:
+ g_object_notify (G_OBJECT (image), "stock");
+ break;
+ case GTK_IMAGE_ICON_SET:
+ g_object_notify (G_OBJECT (image), "icon-set");
+ break;
+ case GTK_IMAGE_ANIMATION:
+ gtk_image_reset_anim_iter (image);
+ g_object_notify (G_OBJECT (image), "pixbuf-animation");
+ break;
+ case GTK_IMAGE_ICON_NAME:
+ g_object_notify (G_OBJECT (image), "icon-name");
+ break;
+ case GTK_IMAGE_GICON:
+ g_object_notify (G_OBJECT (image), "gicon");
+ break;
+ case GTK_IMAGE_EMPTY:
+ default:
+ break;
+ }
+
+ if (priv->filename)
+ {
+ g_free (priv->filename);
+ priv->filename = NULL;
+ g_object_notify (G_OBJECT (image), "file");
+ }
+
+ if (priv->resource_path)
+ {
+ g_free (priv->resource_path);
+ priv->resource_path = NULL;
+ g_object_notify (G_OBJECT (image), "resource");
+ }
+
+ _gtk_icon_helper_clear (priv->icon_helper);
+
+ g_object_thaw_notify (G_OBJECT (image));
+}
+
+/**
+ * gtk_image_clear:
+ * @image: a #GtkImage
+ *
+ * Resets the image to be empty.
+ *
+ * Since: 2.8
+ */
+void
+gtk_image_clear (GtkImage *image)
+{
+ gtk_image_reset (image);
+
+ if (gtk_widget_get_visible (GTK_WIDGET (image)))
+ gtk_widget_queue_resize (GTK_WIDGET (image));
+}
+
+static void
+gtk_image_get_preferred_width (GtkWidget *widget,
+ gint *minimum,
+ gint *natural)
+{
+ gint width;
+
+ gtk_image_get_preferred_size (GTK_IMAGE (widget), &width, NULL);
+ *minimum = *natural = width;
+}
+
+static void
+gtk_image_get_preferred_height (GtkWidget *widget,
+ gint *minimum,
+ gint *natural)
+{
+ gint height;
+
+ gtk_image_get_preferred_size (GTK_IMAGE (widget), NULL, &height);
+ *minimum = *natural = height;
+}
+
+static void
+icon_theme_changed (GtkImage *image)
+{
+ GtkImagePrivate *priv = image->priv;
+
+ _gtk_icon_helper_invalidate (priv->icon_helper);
+ gtk_widget_queue_draw (GTK_WIDGET (image));
+}
+
+static void
+gtk_image_style_updated (GtkWidget *widget)
+{
+ GTK_WIDGET_CLASS (gtk_image_parent_class)->style_updated (widget);
+
+ icon_theme_changed (GTK_IMAGE (widget));
+}
+
+static void
+gtk_image_screen_changed (GtkWidget *widget,
+ GdkScreen *prev_screen)
+{
+ GtkImage *image;
+
+ image = GTK_IMAGE (widget);
+
+ if (GTK_WIDGET_CLASS (gtk_image_parent_class)->screen_changed)
+ GTK_WIDGET_CLASS (gtk_image_parent_class)->screen_changed (widget, prev_screen);
+
+ icon_theme_changed (image);
+}
+
+void
+_gtk_image_gicon_data_clear (GtkImageGIconData *data)
+{
+ if (data->pixbuf)
+ {
+ g_object_unref (data->pixbuf);
+ data->pixbuf = NULL;
+ }
+ if (data->icon)
+ {
+ g_object_unref (data->icon);
+ data->icon = NULL;
+ }
+}
+
+/**
+ * gtk_image_set_pixel_size:
+ * @image: a #GtkImage
+ * @pixel_size: the new pixel size
+ *
+ * Sets the pixel size to use for named icons. If the pixel size is set
+ * to a value != -1, it is used instead of the icon size set by
+ * gtk_image_set_from_icon_name().
+ *
+ * Since: 2.6
+ */
+void
+gtk_image_set_pixel_size (GtkImage *image,
+ gint pixel_size)
+{
+ GtkImagePrivate *priv;
+ gint old_pixel_size;
+
+ g_return_if_fail (GTK_IS_IMAGE (image));
+
+ priv = image->priv;
+ old_pixel_size = gtk_image_get_pixel_size (image);
+
+ if (pixel_size != old_pixel_size)
+ {
+ _gtk_icon_helper_set_pixel_size (priv->icon_helper, pixel_size);
+
+ if (gtk_widget_get_visible (GTK_WIDGET (image)))
+ gtk_widget_queue_resize (GTK_WIDGET (image));
+
+ g_object_notify (G_OBJECT (image), "pixel-size");
+ }
+}
+
+/**
+ * gtk_image_get_pixel_size:
+ * @image: a #GtkImage
+ *
+ * Gets the pixel size used for named icons.
+ *
+ * Returns: the pixel size used for named icons.
+ *
+ * Since: 2.6
+ */
+gint
+gtk_image_get_pixel_size (GtkImage *image)
+{
+ g_return_val_if_fail (GTK_IS_IMAGE (image), -1);
+
+ return _gtk_icon_helper_get_pixel_size (image->priv->icon_helper);
+}
projects / ~andy / gtk / blobdiff