sxy_task.h Source File

00001 #ifndef task_h
00002 #define task_h
00003 
00004 // =======================================================================
00005 
00006 class SXYGraph;
00007 
00008 // =======================================================================
00009 
00010 // ----------------------------------------------------------------------
00011 //* Define uma enumeração dos tratadores das tarefas
00012 typedef enum{
00013   CALLBACK_TREATED = 0,
00014   CALLBACK_NOT_TREATED,
00015 } SXYTaskReturn;
00016 
00017 // ----------------------------------------------------------------------
00018 //* Define uma tarefa genérica associada a um gráfico.
00019 
00020 class SXYTask {
00021 
00022  public:
00023 
00024   static SXYTask* DEFAULT_MOVE_POINT_TASK;
00025   static SXYTask* DEFAULT_MOVE_LEGEND_TASK;
00026   static SXYTask* DEFAULT_ADJUST_AXIS_TASK;
00027   static SXYTask* DEFAULT_EDIT_TEXT_TASK;
00028   static SXYTask* DEFAULT_ZOOM_IN_TASK;
00029   static SXYTask* DEFAULT_CHANGE_COLORS_TASK;
00030 
00031   /* Callbacks chamadas quando do surgimento de eventos de mouse */
00032   virtual SXYTaskReturn mouseClick(SXYGraph* graph, int b, int x, int y, 
00033           int sft, int ctr) = 0;
00034   virtual SXYTaskReturn mouseUnclick(SXYGraph* graph, int b, int x, int y, 
00035           int sft, int ctr) = 0;
00036   virtual SXYTaskReturn mouseMotion(SXYGraph* graph, int x, int y, 
00037           int sft, int ctr) = 0;
00038 
00039   virtual SXYTaskReturn mouseEnter(SXYGraph* graph) = 0;
00040   virtual SXYTaskReturn mouseLeave(SXYGraph* graph) = 0;
00041 
00042   long int getXorColor(void);
00043 
00044   SXYTask(void);
00045   virtual ~SXYTask();
00046 };
00047 
00048 
00049 #endif
00050