GooCanvasRect

GooCanvasRect — a rectangle item.

Synopsis


#include <goocanvas.h>


            GooCanvasRect;

GooCanvasItem* goo_canvas_rect_new          (GooCanvasItem *parent,
                                             gdouble x,
                                             gdouble y,
                                             gdouble width,
                                             gdouble height,
                                             const gchar *first_property,
                                             ...);

Object Hierarchy


  GObject
   +----GooCanvasItemSimple
         +----GooCanvasRect

Implemented Interfaces

GooCanvasRect implements GooCanvasItem.

Properties


  "height"               gdouble               : Read / Write
  "radius-x"             gdouble               : Read / Write
  "radius-y"             gdouble               : Read / Write
  "width"                gdouble               : Read / Write
  "x"                    gdouble               : Read / Write
  "y"                    gdouble               : Read / Write

Description

GooCanvasRect represents a rectangle item.

It is a subclass of GooCanvasItemSimple and so inherits all of the style properties such as "stroke-color", "fill-color" and "line-width".

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 GooCanvasRect use goo_canvas_rect_new().

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

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

Details

GooCanvasRect

typedef struct _GooCanvasRect GooCanvasRect;

The GooCanvasRect struct contains private data only.


goo_canvas_rect_new ()

GooCanvasItem* goo_canvas_rect_new          (GooCanvasItem *parent,
                                             gdouble x,
                                             gdouble y,
                                             gdouble width,
                                             gdouble height,
                                             const gchar *first_property,
                                             ...);

Creates a new rectangle 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.
x : the x coordinate of the left of the rectangle.
y : the y coordinate of the top of the rectangle.
width : the width of the rectangle.
height : the height of the rectangle.
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 rectangle item.

Here's an example showing how to create a rectangle at (100,100) with a width of 200 and a height of 100.

 GooCanvasItem *rect = goo_canvas_rect_new (mygroup, 100.0, 100.0, 200.0, 100.0,
                                            "stroke-color", "red",
                                            "line-width", 5.0,
                                            "fill-color", "blue",
                                            NULL);

Property Details

The "height" property

  "height"               gdouble               : Read / Write

The height of the rectangle.

Allowed values: >= 0

Default value: 0


The "radius-x" property

  "radius-x"             gdouble               : Read / Write

The horizontal radius to use for rounded corners.

Allowed values: >= 0

Default value: 0


The "radius-y" property

  "radius-y"             gdouble               : Read / Write

The vertical radius to use for rounded corners.

Allowed values: >= 0

Default value: 0


The "width" property

  "width"                gdouble               : Read / Write

The width of the rectangle.

Allowed values: >= 0

Default value: 0


The "x" property

  "x"                    gdouble               : Read / Write

The x coordinate of the rectangle.

Default value: 0


The "y" property

  "y"                    gdouble               : Read / Write

The y coordinate of the rectangle.

Default value: 0