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authorJavier Jardón <jjardon@gnome.org>2009-12-18 01:59:21 +0100
committerJavier Jardón <jjardon@gnome.org>2009-12-21 06:34:10 +0100
commite62e7f76c91f186054fc5714800f6d0b67c89f65 (patch)
tree6f3d519b3b4e6caf9a155917f7dfac74a203eee0 /docs
parent016fba99e78107765e51cd5c295757e197b599f3 (diff)
downloadgtk+-e62e7f76c91f186054fc5714800f6d0b67c89f65.tar.gz
Move documentation to inline comments: GtkImage
https://bugzilla.gnome.org/show_bug.cgi?id=597865
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diff --git a/docs/reference/gtk/tmpl/gtkimage.sgml b/docs/reference/gtk/tmpl/gtkimage.sgml
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-<!-- ##### SECTION Title ##### -->
-GtkImage
-
-<!-- ##### SECTION Short_Description ##### -->
-A widget displaying an image
-
-<!-- ##### SECTION Long_Description ##### -->
-<para>
-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().
-</para>
-<para>
-The image file may contain an animation, if so the #GtkImage will
-display an animation (#GdkPixbufAnimation) instead of a static image.
-</para>
-<para>
-#GtkImage is a subclass of #GtkMisc, which implies that you can
-align it (center, left, right) and add padding to it, using
-#GtkMisc methods.
-</para>
-<para>
-#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 &percnt;f,&percnt;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>
-</para>
-<para>
-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.
-</para>
-
-<para>
-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 program
-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().
-</para>
-
-<!-- ##### SECTION See_Also ##### -->
-<para>
-#GdkPixbuf
-</para>
-
-<!-- ##### SECTION Stability_Level ##### -->
-
-
-<!-- ##### STRUCT GtkImage ##### -->
-<para>
-This struct contain private data only and should be accessed by the functions
-below.
-</para>
-
-
-<!-- ##### ARG GtkImage:file ##### -->
-<para>
-
-</para>
-
-<!-- ##### ARG GtkImage:gicon ##### -->
-<para>
-
-</para>
-
-<!-- ##### ARG GtkImage:icon-name ##### -->
-<para>
-
-</para>
-
-<!-- ##### ARG GtkImage:icon-set ##### -->
-<para>
-
-</para>
-
-<!-- ##### ARG GtkImage:icon-size ##### -->
-<para>
-
-</para>
-
-<!-- ##### ARG GtkImage:image ##### -->
-<para>
-
-</para>
-
-<!-- ##### ARG GtkImage:mask ##### -->
-<para>
-
-</para>
-
-<!-- ##### ARG GtkImage:pixbuf ##### -->
-<para>
-
-</para>
-
-<!-- ##### ARG GtkImage:pixbuf-animation ##### -->
-<para>
-
-</para>
-
-<!-- ##### ARG GtkImage:pixel-size ##### -->
-<para>
-
-</para>
-
-<!-- ##### ARG GtkImage:pixmap ##### -->
-<para>
-
-</para>
-
-<!-- ##### ARG GtkImage:stock ##### -->
-<para>
-
-</para>
-
-<!-- ##### ARG GtkImage:storage-type ##### -->
-<para>
-
-</para>
-
-<!-- ##### ENUM GtkImageType ##### -->
-<para>
-Describes the image data representation used by a #GtkImage. If you
-want to get the image from the widget, you can only get the
-currently-stored representation. e.g. if the
-gtk_image_get_storage_type() returns #GTK_IMAGE_PIXBUF, then you can
-call gtk_image_get_pixbuf() but not gtk_image_get_stock(). For empty
-images, you can request any storage type (call any of the "get"
-functions), but they will all return %NULL values.
-</para>
-
-@GTK_IMAGE_EMPTY: there is no image displayed by the widget
-@GTK_IMAGE_PIXMAP: the widget contains a #GdkPixmap
-@GTK_IMAGE_IMAGE: the widget contains a #GdkImage
-@GTK_IMAGE_PIXBUF: the widget contains a #GdkPixbuf
-@GTK_IMAGE_STOCK: the widget contains a stock icon name (see <xref linkend="gtk-Stock-Items"/>)
-@GTK_IMAGE_ICON_SET: the widget contains a #GtkIconSet
-@GTK_IMAGE_ANIMATION: the widget contains a #GdkPixbufAnimation
-@GTK_IMAGE_ICON_NAME: the widget contains a named icon.
- This image type was added in GTK+ 2.6
-@GTK_IMAGE_GICON: the widget contains a #GIcon.
- This image type was added in GTK+ 2.14
-
-<!-- ##### FUNCTION gtk_image_get_icon_set ##### -->
-<para>
-
-</para>
-
-@image:
-@icon_set:
-@size:
-
-
-<!-- ##### FUNCTION gtk_image_get_image ##### -->
-<para>
-
-</para>
-
-@image:
-@gdk_image:
-@mask:
-
-
-<!-- ##### FUNCTION gtk_image_get_pixbuf ##### -->
-<para>
-
-</para>
-
-@image:
-@Returns:
-
-
-<!-- ##### FUNCTION gtk_image_get_pixmap ##### -->
-<para>
-
-</para>
-
-@image:
-@pixmap:
-@mask:
-
-
-<!-- ##### FUNCTION gtk_image_get_stock ##### -->
-<para>
-
-</para>
-
-@image:
-@stock_id:
-@size:
-
-
-<!-- ##### FUNCTION gtk_image_get_animation ##### -->
-<para>
-
-</para>
-
-@image:
-@Returns:
-
-
-<!-- ##### FUNCTION gtk_image_get_icon_name ##### -->
-<para>
-
-</para>
-
-@image:
-@icon_name:
-@size:
-
-
-<!-- ##### FUNCTION gtk_image_get_gicon ##### -->
-<para>
-
-</para>
-
-@image:
-@gicon:
-@size:
-
-
-<!-- ##### FUNCTION gtk_image_get_storage_type ##### -->
-<para>
-
-</para>
-
-@image:
-@Returns:
-
-
-<!-- ##### FUNCTION gtk_image_new_from_file ##### -->
-<para>
-
-</para>
-
-@filename:
-@Returns:
-
-
-<!-- ##### FUNCTION gtk_image_new_from_icon_set ##### -->
-<para>
-
-</para>
-
-@icon_set:
-@size:
-@Returns:
-
-
-<!-- ##### FUNCTION gtk_image_new_from_image ##### -->
-<para>
-
-</para>
-
-@image:
-@mask:
-@Returns:
-
-
-<!-- ##### FUNCTION gtk_image_new_from_pixbuf ##### -->
-<para>
-
-</para>
-
-@pixbuf:
-@Returns:
-
-
-<!-- ##### FUNCTION gtk_image_new_from_pixmap ##### -->
-<para>
-
-</para>
-
-@pixmap:
-@mask:
-@Returns:
-
-
-<!-- ##### FUNCTION gtk_image_new_from_stock ##### -->
-<para>
-
-</para>
-
-@stock_id:
-@size:
-@Returns:
-
-
-<!-- ##### FUNCTION gtk_image_new_from_animation ##### -->
-<para>
-
-</para>
-
-@animation:
-@Returns:
-
-
-<!-- ##### FUNCTION gtk_image_new_from_icon_name ##### -->
-<para>
-
-</para>
-
-@icon_name:
-@size:
-@Returns:
-
-
-<!-- ##### FUNCTION gtk_image_new_from_gicon ##### -->
-<para>
-
-</para>
-
-@icon:
-@size:
-@Returns:
-
-
-<!-- ##### FUNCTION gtk_image_set_from_file ##### -->
-<para>
-
-</para>
-
-@image:
-@filename:
-
-
-<!-- ##### FUNCTION gtk_image_set_from_icon_set ##### -->
-<para>
-
-</para>
-
-@image:
-@icon_set:
-@size:
-
-
-<!-- ##### FUNCTION gtk_image_set_from_image ##### -->
-<para>
-
-</para>
-
-@image:
-@gdk_image:
-@mask:
-
-
-<!-- ##### FUNCTION gtk_image_set_from_pixbuf ##### -->
-<para>
-
-</para>
-
-@image:
-@pixbuf:
-
-
-<!-- ##### FUNCTION gtk_image_set_from_pixmap ##### -->
-<para>
-
-</para>
-
-@image:
-@pixmap:
-@mask:
-
-
-<!-- ##### FUNCTION gtk_image_set_from_stock ##### -->
-<para>
-
-</para>
-
-@image:
-@stock_id:
-@size:
-
-
-<!-- ##### FUNCTION gtk_image_set_from_animation ##### -->
-<para>
-
-</para>
-
-@image:
-@animation:
-
-
-<!-- ##### FUNCTION gtk_image_set_from_icon_name ##### -->
-<para>
-
-</para>
-
-@image:
-@icon_name:
-@size:
-
-
-<!-- ##### FUNCTION gtk_image_set_from_gicon ##### -->
-<para>
-
-</para>
-
-@image:
-@icon:
-@size:
-
-
-<!-- ##### FUNCTION gtk_image_clear ##### -->
-<para>
-
-</para>
-
-@image:
-
-
-<!-- ##### FUNCTION gtk_image_new ##### -->
-<para>
-
-</para>
-
-@Returns: the #GtkImage
-<!-- # Unused Parameters # -->
-@mask: a #GdkBitmap that indicates which parts of the image should be transparent.
-
-
-<!-- ##### FUNCTION gtk_image_set ##### -->
-<para>
-Sets the #GtkImage.
-</para>
-
-@image: a #GtkImage
-@val: a #GdkImage
-@mask: a #GdkBitmap that indicates which parts of the image should be transparent.
-
-
-<!-- ##### FUNCTION gtk_image_get ##### -->
-<para>
-Gets the #GtkImage.
-</para>
-
-@image: a #GtkImage
-@val: return location for a #GdkImage
-@mask: a #GdkBitmap that indicates which parts of the image should be transparent.
-
-
-<!-- ##### FUNCTION gtk_image_set_pixel_size ##### -->
-<para>
-
-</para>
-
-@image:
-@pixel_size:
-
-
-<!-- ##### FUNCTION gtk_image_get_pixel_size ##### -->
-<para>
-
-</para>
-
-@image:
-@Returns:
-
-