Shamusworld >> Repos - architektonas/blob - src/base/rs_previewactioninterface.h

   1 #ifndef RS_PREVIEWACTIONINTERFACE_H
   2 #define RS_PREVIEWACTIONINTERFACE_H
   3
   4 #include "rs_actioninterface.h"
   5 #include "vector.h"
   6
   7 class RS_Preview;
   8
   9 /**
  10  * This is the interface that must be implemented for all
  11  * action classes which need a preview.
  12  *
  13  * @author Andrew Mustun
  14  */
  15 class RS_PreviewActionInterface: public RS_ActionInterface
  16 {
  17         public:
  18                 RS_PreviewActionInterface(const char * name,
  19                         RS_EntityContainer & container, RS_GraphicView & graphicView);
  20                 virtual ~RS_PreviewActionInterface();
  21
  22                 virtual void init(int status = 0);
  23                 virtual void finish();
  24                 virtual void suspend();
  25                 virtual void resume();
  26                 virtual void trigger();
  27                 void clearPreview();
  28                 void drawPreview();
  29                 void deletePreview();
  30
  31         private:
  32                 void xorPreview();
  33
  34         protected:
  35                 /**
  36                 * Preview that holds the entities to be previewed.
  37                 */
  38                 RS_Preview * preview;
  39                 /**
  40                 * Keeps track of the drawings in XOR mode.
  41                 */
  42                 bool visible;
  43                 /**
  44                 * Current offset of the preview.
  45                 */
  46                 Vector offset;
  47 };
  48
  49 #endif