4 * This file is part of LyX, the document processor.
5 * Licence details can be found in the file COPYING.
7 * \author Angus Leeming
9 * Full author contact details are available in file CREDITS.
15 #include "dimension.h"
26 class RenderMonitoredPreview;
30 virtual ~RenderBase() {}
32 virtual std::auto_ptr<RenderBase> clone(InsetBase const *) const = 0;
34 /// compute the size of the object returned in dim
35 virtual void metrics(MetricsInfo & mi, Dimension & dim) const = 0;
36 /// draw inset and update (xo, yo)-cache
37 virtual void draw(PainterInfo & pi, int x, int y) const = 0;
39 /// equivalent to dynamic_cast
40 virtual RenderButton * asButton() { return 0; }
41 virtual RenderGraphic * asGraphic() { return 0; }
42 virtual RenderPreview * asPreview() { return 0; }
43 virtual RenderMonitoredPreview * asMonitoredPreview() { return 0; }
47 RenderBase(RenderBase const &) {}
48 RenderBase & operator=(RenderBase const &) { return *this; }
51 mutable Dimension dim_;
54 #endif // NOT RENDER_BASE_H