GooCanvasImage

GooCanvasImage — an image item.

Synopsis


#include <goocanvas.h>


            GooCanvasImage;

GooCanvasItem* goo_canvas_image_new         (GooCanvasItem *parent,
                                             GdkPixbuf *pixbuf,
                                             gdouble x,
                                             gdouble y,
                                             const gchar *first_property,
                                             ...);

Object Hierarchy


  GObject
   +----GooCanvasItemSimple
         +----GooCanvasImage

Implemented Interfaces

GooCanvasImage implements GooCanvasItem.

Properties


  "height"               gdouble               : Read / Write
  "pattern"              GooCairoPattern       : Read / Write
  "pixbuf"               GdkPixbuf             : Write
  "width"                gdouble               : Read / Write
  "x"                    gdouble               : Read / Write
  "y"                    gdouble               : Read / Write

Description

GooCanvasImage represents an image item.

It is a subclass of GooCanvasItemSimple and so inherits all of the style properties such as "operator" and "pointer-events".

It also implements the GooCanvasItem interface, so you can use the GooCanvasItem functions such as goo_canvas_item_raise() and goo_canvas_item_rotate().

To create a GooCanvasImage use goo_canvas_image_new().

To get or set the properties of an existing GooCanvasImage, use g_object_get() and g_object_set().

To respond to events such as mouse clicks on the image you must connect to the signal handlers of the corresponding GooCanvasImageView objects. (See goo_canvas_view_get_item_view() and GooCanvasView::item-view-created.)

Details

GooCanvasImage

typedef struct _GooCanvasImage GooCanvasImage;

The GooCanvasImage struct contains private data only.

goo_canvas_image_new ()

GooCanvasItem* goo_canvas_image_new         (GooCanvasItem *parent,
                                             GdkPixbuf *pixbuf,
                                             gdouble x,
                                             gdouble y,
                                             const gchar *first_property,
                                             ...);

Creates a new image item.

parent : the parent item, or NULL. If a parent is specified, it will assume ownership of the item, and the item will automatically be freed when it is removed from the parent. Otherwise call g_object_unref() to free it.
pixbuf : the GdkPixbuf containing the image data, or NULL.
x : the x coordinate of the image.
y : the y coordinate of the image.
first_property : the name of the first property to set, or NULL.
... : the remaining property names and values to set, terminated with a NULL.
Returns : a new image item.

Here's an example showing how to create an image at (100.0, 100.0), using the given pixbuf at its natural width and height: 

 GooCanvasItem *image = goo_canvas_image_new (mygroup, pixbuf, 100.0, 100.0,
                                              NULL);

Property Details

The "height" property

  "height"               gdouble               : Read / Write

The height of the image.

Allowed values: >= 0

Default value: 0

The "pattern" property

  "pattern"              GooCairoPattern       : Read / Write

The cairo pattern to paint.

The "pixbuf" property

  "pixbuf"               GdkPixbuf             : Write

The GdkPixbuf to display.

The "width" property

  "width"                gdouble               : Read / Write

The width of the image.

Allowed values: >= 0

Default value: 0

The "x" property

  "x"                    gdouble               : Read / Write

The x coordinate of the image.

Default value: 0

The "y" property

  "y"                    gdouble               : Read / Write

The y coordinate of the image.

Default value: 0