* src/LyXAction.C: mark goto-clear-bookmark as working without buffer

[lyx.git] / src / insets / render_base.h

diff --git a/src/insets/render_base.h b/src/insets/render_base.h
index 20285f5fd8c5c6d8b3da2555cc91ce3b38f0b6c9..4aea45469824baed9111d9234950b178da082edf 100644 (file)
--- a/src/insets/render_base.h
+++ b/src/insets/render_base.h
@@ -14,28 +14,54 @@
 
 #include "dimension.h"
 
+#include <memory>
+
+
+namespace lyx {
+
+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;
+       /// compute the size of the object returned in dim.
+       /// \retval true if the metrics has changed.
+       virtual bool 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;
+       /// render state, exact meaning of state is render-specific
+       void setRenderState(int state) { state_ = state; }
+       /// get render state
+       int renderState() const { return state_; } 
+
+       /// 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; }
 
+       /// render state. currently, render_button uses this to store mouse_hover_
+       int state_;
        /// Cached
        mutable Dimension dim_;
 };
 
+
+} // namespace lyx
+
 #endif // NOT RENDER_BASE_H