ROOT_528-00b_version: include/TGLEventHandler.h Source File

00001 // @(#)root/gl:$Id: TGLEventHandler.h 34006 2010-06-21 10:36:05Z matevz $
00002 // Author: Bertrand Bellenot   29/01/2008
00003 
00004 /*************************************************************************
00005  * Copyright (C) 1995-2008, Rene Brun and Fons Rademakers.               *
00006  * All rights reserved.                                                  *
00007  *                                                                       *
00008  * For the licensing terms see $ROOTSYS/LICENSE.                         *
00009  * For the list of contributors see $ROOTSYS/README/CREDITS.             *
00010  *************************************************************************/
00011 
00012 #ifndef ROOT_TGLEventHandler
00013 #define ROOT_TGLEventHandler
00014 
00015 //////////////////////////////////////////////////////////////////////////
00016 //                                                                      //
00017 // TGLEventHandler                                                      //
00018 //                                                                      //
00019 //////////////////////////////////////////////////////////////////////////
00020 
00021 #ifndef ROOT_TGEventHandler
00022 #include "TGEventHandler.h"
00023 #endif
00024 #ifndef ROOT_TPoint
00025 #include "TPoint.h"
00026 #endif
00027 
00028 class TGToolTip;
00029 
00030 class TGLViewer;
00031 class TGLPhysicalShape;
00032 
00033 class TGLEventHandler : public TGEventHandler
00034 {
00035 protected:
00036    TGLViewer        *fGLViewer;
00037    TTimer           *fMouseTimer;     // mouse delay timer
00038    TPoint            fButtonPushPos;
00039    TPoint            fLastPos;
00040    TPoint            fLastMouseOverPos;
00041    TGLPhysicalShape *fLastMouseOverShape;
00042    TGToolTip        *fTooltip;        // tooltip for highlight
00043    TPoint            fLastGlobalPos;
00044    TPoint            fTooltipPos;
00045    UInt_t            fActiveButtonID;
00046    UInt_t            fLastEventState;
00047    Bool_t            fIgnoreButtonUp;
00048    Bool_t            fInPointerGrab;
00049    Bool_t            fMouseTimerRunning;
00050    Bool_t            fTooltipShown;
00051    Int_t             fTooltipPixelTolerance;
00052    Int_t             fSecSelType; // secondary selection type
00053    Bool_t            fDoInternalSelection;
00054    Bool_t            fViewerCentricControls;
00055    Float_t           fArrowKeyFactor;
00056    Float_t           fMouseDragFactor;
00057    Float_t           fMouseWheelFactor;
00058 
00059    virtual Bool_t Rotate(Int_t xDelta, Int_t yDelta, Bool_t mod1, Bool_t mod2);
00060 
00061    virtual void   GrabMouse();
00062    virtual void   UnGrabMouse();
00063 
00064    virtual void   SelectForClicked(Event_t *event);
00065    virtual void   SelectForMouseOver();
00066 
00067    Int_t ControlValue(Int_t v) { return fViewerCentricControls ? -v : v; }
00068 
00069 public:
00070    TGLEventHandler(TGWindow *w, TObject *obj);
00071    virtual ~TGLEventHandler();
00072 
00073    virtual void   ExecuteEvent(Int_t event, Int_t px, Int_t py);
00074    virtual Bool_t HandleEvent(Event_t *event);
00075    virtual Bool_t HandleExpose(Event_t * event);
00076    virtual Bool_t HandleFocusChange(Event_t *event);
00077    virtual Bool_t HandleCrossing(Event_t *event);
00078    virtual Bool_t HandleButton(Event_t * event);
00079    virtual Bool_t HandleDoubleClick(Event_t *event);
00080    virtual Bool_t HandleConfigureNotify(Event_t *event);
00081    virtual Bool_t HandleKey(Event_t *event);
00082    virtual Bool_t HandleMotion(Event_t * event);
00083    virtual Bool_t HandleTimer(TTimer *t);
00084    virtual void   StartMouseTimer();
00085    virtual void   StopMouseTimer();
00086    virtual void   ClearMouseOver();
00087    virtual void   Repaint();
00088 
00089    virtual void   PopupContextMenu(TGLPhysicalShape* pshp, Event_t *event, Int_t gx, Int_t gy);
00090 
00091    virtual void   TriggerTooltip(const char* text);
00092    virtual void   RemoveTooltip();
00093 
00094    void  SetMouseOverSelectDelay(Int_t ms);
00095    void  SetMouseOverTooltipDelay(Int_t ms);
00096 
00097    Int_t GetTooltipPixelTolerance()  const { return fTooltipPixelTolerance; }
00098    void  SetTooltipPixelTolerance(Int_t t) { fTooltipPixelTolerance = t; }
00099 
00100    Int_t GetSecSelType()  const { return fSecSelType; }
00101    void  SetSecSelType(Int_t t) { fSecSelType = t; }
00102 
00103    Bool_t GetDoInternalSelection() const { return fDoInternalSelection; }
00104    void   SetDoInternalSelection(Bool_t x) { fDoInternalSelection = x; }
00105 
00106    ClassDef(TGLEventHandler, 0); // Base-class and default implementation of event-handler for TGLViewer.
00107 };
00108 
00109 #endif
00110