\addtogroup renderer_interfaces Rendering Engine Interfaces One of a number of interfaces (all starting with nsISVGRenderer*) to be implemented by an SVG rendering engine. See nsISVGRenderer for more details.
The SVG rendering backend uses this interface to communicate to the rendering engine-native glyph objects.
A glyph object is instantiated by the rendering backend for a given nsISVGGlyphGeometrySource object with a call to nsISVGRenderer::createGlyphGeometry(). The glyph object is assumed to store a reference to its associated source object and provide glyph rendering and hit-testing for the (composite) glyph described by the nsISVGGlyphGeometrySource members.
Hit-testing method. Does this glyph geometry (with all relevant transformations applied) contain the point x,y? Should work on a character-cell basis, rather than the actual character outline.
- x: X-coordinate of test point. @param y Y-coordinate of test point.
- PR_TRUE if the glyph geometry contains the point, PR_FALSE otherwise.
nsISVGRendererRegion getCoveredRegion ( )
Get a region object describing the area covered with paint by this glyph geometry.
- Covered region.
void render ( nsISVGRendererCanvas canvas )
Paint this object.
- canvas: The canvas to render to.
nsISVGRendererRegion update ( PRUint32 updatemask )
Called by this object's corresponding nsISVGGlyphGeometrySource as a notification that some of the source's data (identified by paramter 'updatemask') has changed.
- updatemask: An OR-ed combination of the UPDATEMASK_* constants defined in nsISVGGlyphGeometrySource.
- Region that needs to be redrawn.
This interface is returned from the following methods:
Reference documentation is generated from Mozilla's source.