#include "dimension.h"
+#include <memory>
+
+class InsetBase;
class MetricsInfo;
class PainterInfo;
+class RenderButton;
+class RenderGraphic;
+class RenderPreview;
+class RenderMonitoredPreview;
class RenderBase {
public:
virtual ~RenderBase() {}
- virtual RenderBase * clone() const = 0;
+ virtual std::auto_ptr<RenderBase> clone(InsetBase const *) const = 0;
/// compute the size of the object returned in dim
virtual void metrics(MetricsInfo & mi, Dimension & dim) const = 0;
/// draw inset and update (xo, yo)-cache
virtual void draw(PainterInfo & pi, int x, int y) const = 0;
+ /// equivalent to dynamic_cast
+ virtual RenderButton * asButton() { return 0; }
+ virtual RenderGraphic * asGraphic() { return 0; }
+ virtual RenderPreview * asPreview() { return 0; }
+ virtual RenderMonitoredPreview * asMonitoredPreview() { return 0; }
+
protected:
RenderBase() {}
RenderBase(RenderBase const &) {}
- void operator=(RenderBase const &) {}
+ RenderBase & operator=(RenderBase const &) { return *this; }
/// Cached
mutable Dimension dim_;