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

   1 #ifndef RS_BLOCKLISTLISTENER_H
   2 #define RS_BLOCKLISTLISTENER_H
   3
   4 #include "rs_block.h"
   5
   6 /**
   7  * This class is an interface for classes that are interested in
   8  * knowing about changes in the block list.
   9  */
  10 class RS_BlockListListener
  11 {
  12         public:
  13                 RS_BlockListListener() {}
  14                 virtual ~RS_BlockListListener() {}
  15
  16                 /**
  17                  * Called when the active block changes.
  18                  */
  19                 virtual void blockActivated(RS_Block*) {}
  20
  21                 /**
  22                  * Called when a new block is added to the list.
  23                  */
  24                 virtual void blockAdded(RS_Block*) {}
  25
  26                 /**
  27                  * Called when a block is removed from the list.
  28                  */
  29                 virtual void blockRemoved(RS_Block*) {}
  30
  31                 /**
  32                  * Called when a block's attributes are modified.
  33                  */
  34                 virtual void blockEdited(RS_Block*) {}
  35
  36                 /**
  37                  * Called when a block's visibility is toggled.
  38                  */
  39                 virtual void blockToggled(RS_Block*) {}
  40 };
  41
  42 #endif