comparison base/View.h @ 8:214054a0d8b8

* Hook up tool selection buttons to switch the cursor mode
* Implement simple and multi-selection, snapping to the resolution
  of the current layer.  You can't actually do anything with a selection yet

 #include <QFrame>
 #include <QProgressBar>
 
 #include "base/ZoomConstraint.h"
 #include "base/PropertyContainer.h"
+#include "base/ViewManager.h"
 #include "base/XmlExportable.h"
 
 class Layer;
-class ViewManager;
 
 #include <map>
 
 /**
  * View is the base class of widgets that display one or more

      * Return a layer, counted in stacking order.  That is, layer 0 is
      * the bottom layer and layer "getLayerCount()-1" is the top one.
      */
     virtual Layer *getLayer(int n) { return m_layers[n]; }
 
+    /**
+     * Return the layer last selected by the user.  This is normally
+     * the top layer, the same as getLayer(getLayerCount()-1).
+     * However, if the user has selected the pane itself more recently
+     * than any of the layers on it, this function will return 0.  It
+     * will also return 0 if there are no layers.
+     */
+    virtual Layer *getSelectedLayer();
+
     virtual void setViewManager(ViewManager *m);
 
     virtual void setFollowGlobalPan(bool f);
     virtual bool getFollowGlobalPan() const { return m_followPan; }
 

     virtual void viewManagerCentreFrameChanged(void *, unsigned long, bool);
     virtual void viewManagerPlaybackFrameChanged(unsigned long);
     virtual void viewManagerZoomLevelChanged(void *, unsigned long, bool);
 
     virtual void propertyContainerSelected(PropertyContainer *pc);
+
+    virtual void toolModeChanged();
 
 protected:
     View(QWidget *, bool showProgress);
     virtual void paintEvent(QPaintEvent *e);
 

     int                 m_cacheZoomLevel;
 
     bool                m_deleting;
 
     LayerList           m_layers; // I don't own these, but see dtor note above
+    bool                m_haveSelectedLayer;
 
     // caches for use in getScrollableBackLayers, getNonScrollableFrontLayers
     mutable LayerList m_lastScrollableBackLayers;
     mutable LayerList m_lastNonScrollableBackLayers;