func (c CairoContext) status() error {
status := C.cairo_status(c.nativePointer())
if status != 0 {
return cairoStatusToError(status)
}
return nil
}
func NewSurfaceFromPNG(filename string) (*Surface, Status) {
cstr := C.CString(filename)
defer C.free(unsafe.Pointer(cstr))
surfaceNative := C.cairo_image_surface_create_from_png(cstr)
status := Status(C.cairo_surface_status(surfaceNative))
if status != STATUS_SUCCESS {
return nil, status
}
contextNative := C.cairo_create(surfaceNative)
status = Status(C.cairo_status(contextNative))
if status != STATUS_SUCCESS {
return nil, status
}
surface := &Surface{
surface: surfaceNative,
context: contextNative,
}
return surface, STATUS_SUCCESS
}
func (self *Surface) Status() Status {
return Status(C.cairo_status(self.context))
}
// Status is a wrapper around cairo_status().
func (v *Context) Status() Status {
c := C.cairo_status(v.native())
return Status(c)
}
//Err reports the current error state of c.
//
//Originally cairo_status.
func (c *Context) Err() error {
if c.c == nil {
return ErrInvalidLibcairoHandle
}
return toerr(C.cairo_status(c.c))
}
// gets the status of the cairo context and returns it as an error
func (g *Graphic) cairoStatus() error {
status := C.cairo_status(g.cr)
return statusToError(status)
}