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GooCanvasGroup

GooCanvasGroup — a group of items.

Object Hierarchy

  GObject
   +----GooCanvasItemSimple
         +----GooCanvasGroup
               +----GooCanvasTable

Implemented Interfaces

GooCanvasGroup implements GooCanvasItem.

Properties

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

Description

GooCanvasGroup represents a group of items. Groups can be nested to any depth, to create a hierarchy of items. Items are ordered within each group, with later items being displayed above earlier items.

GooCanvasGroup is a subclass of GooCanvasItemSimple and so inherits all of the style properties such as "stroke-color", "fill-color" and "line-width". Setting a style property on a GooCanvasGroup will affect all children of the GooCanvasGroup (unless the children override the property setting).

GooCanvasGroup implements the GooCanvasItem interface, so you can use the GooCanvasItem functions such as goo_canvas_item_raise() and goo_canvas_item_rotate(), and the properties such as "visibility" and "pointer-events".

If the "width" and "height" properties are set to positive values then the group is clipped to the given size.

To create a GooCanvasGroup use goo_canvas_group_new().

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

Details

GooCanvasGroup

typedef struct _GooCanvasGroup GooCanvasGroup;

The GooCanvasGroup struct contains private data only.


goo_canvas_group_new ()

GooCanvasItem*      goo_canvas_group_new                (GooCanvasItem *parent,
                                                         ...);

Creates a new group 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.

... :

optional pairs of property names and values, and a terminating NULL.

Returns :

a new group item.

Property Details

The "height" property

  "height"                   gdouble               : Read / Write

The height of the group, or -1 to use the default height.

Default value: -1


The "width" property

  "width"                    gdouble               : Read / Write

The width of the group, or -1 to use the default width.

Default value: -1


The "x" property

  "x"                        gdouble               : Read / Write

The x coordinate of the group.

Default value: 0


The "y" property

  "y"                        gdouble               : Read / Write

The y coordinate of the group.

Default value: 0

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