include/root/TGLEventHandler.h

0001 // @(#)root/gl:$Id$
0002 // Author: Bertrand Bellenot   29/01/2008
0003
0004 /*************************************************************************
0005  * Copyright (C) 1995-2008, Rene Brun and Fons Rademakers.               *
0006  * All rights reserved.                                                  *
0007  *                                                                       *
0008  * For the licensing terms see $ROOTSYS/LICENSE.                         *
0009  * For the list of contributors see $ROOTSYS/README/CREDITS.             *
0010  *************************************************************************/
0011
0012 #ifndef ROOT_TGLEventHandler
0013 #define ROOT_TGLEventHandler
0014
0015 //////////////////////////////////////////////////////////////////////////
0016 //                                                                      //
0017 // TGLEventHandler                                                      //
0018 //                                                                      //
0019 //////////////////////////////////////////////////////////////////////////
0020
0021 #include "TGEventHandler.h"
0022 #include "TPoint.h"
0023
0024 class TGToolTip;
0025
0026 class TGLViewer;
0027 class TGLPhysicalShape;
0028
0029 class TGLEventHandler : public TGEventHandler
0030 {
0031 protected:
0032    TGLViewer        *fGLViewer;
0033    TTimer           *fMouseTimer;     // mouse delay timer
0034    TPoint            fButtonPushPos;
0035    TPoint            fLastPos;
0036    TPoint            fLastMouseOverPos;
0037    TGLPhysicalShape *fLastMouseOverShape;
0038    TGToolTip        *fTooltip;        // tooltip for highlight
0039    TPoint            fLastGlobalPos;
0040    TPoint            fTooltipPos;
0041    UInt_t            fActiveButtonID;
0042    UInt_t            fLastEventState;
0043    Bool_t            fIgnoreButtonUp;
0044    Bool_t            fInPointerGrab;
0045    Bool_t            fMouseTimerRunning;
0046    Bool_t            fTooltipShown;
0047    Bool_t            fArcBall;
0048    Int_t             fTooltipPixelTolerance;
0049    Int_t             fSecSelType; // secondary selection type
0050    Bool_t            fDoInternalSelection;
0051    Bool_t            fViewerCentricControls;
0052    Float_t           fArrowKeyFactor;
0053    Float_t           fMouseDragFactor;
0054    Float_t           fMouseWheelFactor;
0055
0056    virtual Bool_t Rotate(Int_t xDelta, Int_t yDelta, Bool_t mod1, Bool_t mod2);
0057
0058    virtual void   GrabMouse();
0059    virtual void   UnGrabMouse();
0060
0061    virtual void   SelectForClicked(Event_t *event);
0062    virtual void   SelectForMouseOver();
0063
0064    Int_t ControlValue(Int_t v) { return fViewerCentricControls ? -v : v; }
0065
0066 public:
0067    TGLEventHandler(TGWindow *w, TObject *obj);
0068    ~TGLEventHandler() override;
0069
0070    void   ExecuteEvent(Int_t event, Int_t px, Int_t py) override;
0071    Bool_t HandleEvent(Event_t *event) override;
0072    virtual Bool_t HandleExpose(Event_t * event);
0073    Bool_t HandleFocusChange(Event_t *event) override;
0074    Bool_t HandleCrossing(Event_t *event) override;
0075    Bool_t HandleButton(Event_t * event) override;
0076    Bool_t HandleDoubleClick(Event_t *event) override;
0077    Bool_t HandleConfigureNotify(Event_t *event) override;
0078    Bool_t HandleKey(Event_t *event) override;
0079    Bool_t HandleMotion(Event_t * event) override;
0080    Bool_t HandleTimer(TTimer *t) override;
0081    virtual void   StartMouseTimer();
0082    virtual void   StopMouseTimer();
0083    virtual void   ClearMouseOver();
0084    void   Repaint() override;
0085
0086    virtual void   PopupContextMenu(TGLPhysicalShape* pshp, Event_t *event, Int_t gx, Int_t gy);
0087
0088    virtual void   TriggerTooltip(const char* text);
0089    virtual void   RemoveTooltip();
0090
0091    void  SetMouseOverSelectDelay(Int_t ms);
0092    void  SetMouseOverTooltipDelay(Int_t ms);
0093
0094    Int_t GetTooltipPixelTolerance()  const { return fTooltipPixelTolerance; }
0095    void  SetTooltipPixelTolerance(Int_t t) { fTooltipPixelTolerance = t; }
0096
0097    Int_t GetSecSelType()  const { return fSecSelType; }
0098    void  SetSecSelType(Int_t t) { fSecSelType = t; }
0099
0100    Bool_t GetDoInternalSelection() const { return fDoInternalSelection; }
0101    void   SetDoInternalSelection(Bool_t x) { fDoInternalSelection = x; }
0102
0103    Bool_t GetArcBall() const   { return fArcBall; }
0104    void   SetArcBall(Bool_t a) { fArcBall = a;    }
0105
0106    ClassDefOverride(TGLEventHandler, 0); // Base-class and default implementation of event-handler for TGLViewer.
0107 };
0108
0109 #endif
0110