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/qtroot/interface/tqrootcanvas.h

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//---------------------------------------------------------------
//        Go4 Release Package v2.10-5 (build 21005) 
//                      03-Nov-2005
//---------------------------------------------------------------
//       The GSI Online Offline Object Oriented (Go4) Project
//       Experiment Data Processing at DVEE department, GSI
//---------------------------------------------------------------
//
//Copyright (C) 2000- Gesellschaft f. Schwerionenforschung, GSI
//                    Planckstr. 1, 64291 Darmstadt, Germany
//Contact:            http://go4.gsi.de
//----------------------------------------------------------------
//This software can be used under the license agreements as stated
//in Go4License.txt file which is part of the distribution.
//----------------------------------------------------------------
#ifndef TQROOTCANVAS_H
#define TQROOTCANVAS_H

using namespace std;

#include "qwidget.h"
#include "qstring.h"
#include "tqcanvasmenu.h"
#include "TApplication.h"
#include "TSeqCollection.h"
#include "TROOT.h"
#include "qdragobject.h"
#include "Rtypes.h"
#include "Gtypes.h"
#include "TButton.h"

class QAction;
class QMouseEvent;
class QResizeEvent;
class QPaintEvent;
class TPad;
class TContextMenu;
class TControlBar;
/*
*   This canvas uses Qt eventloop to handle user input
*
*   @short Graphic Qt Widget based Canvas
*
* @authors Denis Bertini <d.bertini@gsi.de>
* @version 2.0
*/



class TQRootCanvas : public QWidget
{
  Q_OBJECT

    public:
  TQRootCanvas( QWidget *parent = 0, const char *name = 0 ,TCanvas *c=0);
  TQRootCanvas( QWidget *parent = 0, QWidget* tabWin = 0 , const char *name = 0 ,TCanvas *c=0);

  virtual ~TQRootCanvas();

  TCanvas* getCanvas() { return fCanvas;}
  int getRootWid() { return wid;}
  bool getCanvasOwner(){ return isCanvasOwned; }
  QWidget* getParent() { return fParent;}
  QWidget* getTabWin() { return fTabWin;}
  virtual void dropEvent( QDropEvent *Event );
  virtual void dragEnterEvent( QDragEnterEvent *e );

 signals:
    void SelectedPadChanged(TPad *);     // signal which will be emitted when root selected bad is changee
                                 // via clicking the mid-mouse button (M. al-Turany)

  public slots:


   void              cd(Int_t subpadnumber=0);
   virtual void      Browse(TBrowser *b);
   void              Clear(Option_t *option="");
   void              Close(Option_t *option="");
   virtual void      Draw(Option_t *option="");
   virtual TObject  *DrawClone(Option_t *option="");
   virtual TObject  *DrawClonePad();
   virtual void      EditorBar();
   void              EnterLeave(TPad *prevSelPad, TObject *prevSelObj);
   void              FeedbackMode(Bool_t set);
   void              Flush();
   void              UseCurrentStyle();
   void              ForceUpdate() ;
   const char       *GetDISPLAY();
   TContextMenu     *GetContextMenu() ;
   Int_t             GetDoubleBuffer() ;
   TControlBar      *GetEditorBar()  ;
   Int_t             GetEvent()  ;
   Int_t             GetEventX() ;
   Int_t             GetEventY() ;
   Color_t           GetHighLightColor() ;
   virtual void      GetPadDivision(Int_t xdivision=1, Int_t ydivision=1);
   TVirtualPad      *GetPadSave() ;
   TObject          *GetSelected() ;
   Option_t         *GetSelectedOpt() ;
   TVirtualPad      *GetSelectedPad()  ;
   Bool_t            GetShowEventStatus() ;
   Bool_t            GetAutoExec() ;
   Size_t            GetXsizeUser()  ;
   Size_t            GetYsizeUser()  ;
   Size_t            GetXsizeReal()  ;
   Size_t            GetYsizeReal()  ;
   Int_t             GetCanvasID()  ;
   Int_t             GetWindowTopX();
   Int_t             GetWindowTopY();
   UInt_t            GetWindowWidth() ;
   UInt_t            GetWindowHeight()  ;
   UInt_t            GetWw() ;
   UInt_t            GetWh() ;
   virtual void      GetCanvasPar(Int_t &wtopx, Int_t &wtopy, UInt_t &ww, UInt_t &wh);
   virtual void      HandleInput(EEventType button, Int_t x, Int_t y);
   Bool_t            HasMenuBar()  ;
   void              Iconify() ;
   Bool_t            IsBatch() ;
   Bool_t            IsRetained() ;
   virtual void      ls(Option_t *option="") ;
   void              MoveOpaque(Int_t set=1);
   Bool_t            OpaqueMoving() ;
   Bool_t            OpaqueResizing() ;
   virtual void      Paint(Option_t *option="");
   virtual TPad     *Pick(Int_t px, Int_t py, TObjLink *&pickobj) ;
   virtual TPad     *Pick(Int_t px, Int_t py, TObject *prevSelObj);
   virtual void      Resize(Option_t *option="");
   void              ResizeOpaque(Int_t set=1) ;
   void              SaveSource(const char *filename="", Option_t *option="");
   virtual void      SetCursor(ECursor cursor);
   virtual void      SetDoubleBuffer(Int_t mode=1);
   void              SetWindowPosition(Int_t x, Int_t y) ;
   void              SetWindowSize(UInt_t ww, UInt_t wh) ;
   void              SetCanvasSize(UInt_t ww, UInt_t wh);
   void              SetHighLightColor(Color_t col);
   void              SetSelected(TObject *obj) ;
   void              SetSelectedPad(TPad *pad) ;
   void              Show() ;
   virtual void      Size(Float_t xsizeuser=0, Float_t ysizeuser=0);
   void              SetBatch(Bool_t batch=kTRUE);
   void              SetRetained(Bool_t retained=kTRUE);
   void              SetTitle(const char *title="");
   virtual void      ToggleEventStatus();
   virtual void      ToggleAutoExec();
   virtual void      Update();

   bool NeedsResize(){return needResize;}
   void SetNeedsResize(bool yes) {needResize=yes;}



 protected:
  virtual bool  eventFilter( QObject *, QEvent * );
  virtual void mousePressEvent( QMouseEvent *e );
  virtual void mouseReleaseEvent( QMouseEvent *e );
  virtual void resizeEvent( QResizeEvent *e );
  virtual void paintEvent( QPaintEvent *e );
  virtual void mouseDoubleClickEvent(QMouseEvent* e );
  virtual void mouseMoveEvent(QMouseEvent *e);
  virtual void leaveEvent(QEvent *e);
  virtual void  closeEvent( QCloseEvent * e);
  TQCanvasMenu *fContextMenu;
  TCanvas *fCanvas;
  Int_t wid;
  bool needResize;
  bool isCanvasOwned;
  QWidget *fParent,*fTabWin;
};

#endif







//----------------------------END OF GO4 SOURCE FILE ---------------------

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