comparison layer/ScrollableImageCache.h @ 1325:bc2cb82050a0 zoom

Gradual ZoomLevel updates

 {
 public:
     ScrollableImageCache() :
         m_validLeft(0),
         m_validWidth(0),
-        m_startFrame(0),
-        m_zoomLevel(0)
+        m_startFrame(0)
     {}
 
     void invalidate() {
         m_validWidth = 0;
     }

 
     QRect getValidArea() const {
         return QRect(m_validLeft, 0, m_validWidth, m_image.height());
     }
     
-    int getZoomLevel() const {
+    ZoomLevel getZoomLevel() const {
         return m_zoomLevel;
     }
 
     /**
      * Set the zoom level. If the new zoom level differs from the
      * current one, the cache is invalidated. (Determining whether to
      * invalidate the cache here is the only thing the zoom level is
      * used for.)
      */
-    void setZoomLevel(int zoom) {
+    void setZoomLevel(ZoomLevel zoom) {
+        using namespace std::rel_ops;
         if (m_zoomLevel != zoom) {
             m_zoomLevel = zoom;
             invalidate();
         }
     }

 private:
     QImage m_image;
     int m_validLeft;
     int m_validWidth;
     sv_frame_t m_startFrame;
-    int m_zoomLevel;
+    ZoomLevel m_zoomLevel;
 };
 
 #endif