Exemplo n.º 1
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// MaskSurface is a wrapper around cairo_mask_surface().
func (v *Context) MaskSurface(surface *Surface, surfaceX, surfaceY float64) {
	C.cairo_mask_surface(v.native(), surface.native(), C.double(surfaceX),
		C.double(surfaceY))
}
Exemplo n.º 2
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func (self *Surface) MaskSurface(surface *Surface, surface_x, surface_y float64) {
	C.cairo_mask_surface(self.context, surface.surface, C.double(surface_x), C.double(surface_y))
}
Exemplo n.º 3
0
//MaskSurface paints the current source using the alpha channel of surface
//as a mask.
//Opaque areas of surface are painted with the source, transparent areas are
//not painted.
//
//Originally cairo_mask_surface.
func (c *Context) MaskSurface(s Surface, offsetVector Point) *Context {
	x, y := offsetVector.c()
	C.cairo_mask_surface(c.c, s.XtensionRaw(), x, y)
	return c
}