/usr/include/root/TGCanvas.h is in libroot-gui-dev 5.34.30-0ubuntu8.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Author: Fons Rademakers 11/01/98
/*************************************************************************
* Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *
* All rights reserved. *
* *
* For the licensing terms see $ROOTSYS/LICENSE. *
* For the list of contributors see $ROOTSYS/README/CREDITS. *
*************************************************************************/
#ifndef ROOT_TGCanvas
#define ROOT_TGCanvas
//////////////////////////////////////////////////////////////////////////
// //
// TGCanvas and TGViewPort and TGContainer //
// //
// A TGCanvas is a frame containing two scrollbars (horizontal and //
// vertical) and a viewport. The viewport acts as the window through //
// which we look at the contents of the container frame. //
// //
//////////////////////////////////////////////////////////////////////////
#ifndef ROOT_TGFrame
#include "TGFrame.h"
#endif
class TGHScrollBar;
class TGVScrollBar;
class TGClient;
class TGViewPort;
class TGCanvas;
class TGFrameElement;
class TGContainerTimer;
class TGContainerKeyboardTimer;
class TGContainerScrollTimer;
class TGListView;
class TGPicture;
class TGRectangle;
class TGContainer : public TGCompositeFrame {
friend class TGViewPort;
friend class TGCanvas;
friend class TGContainerKeyboardTimer;
friend class TGContainerScrollTimer;
friend class TGListView;
protected:
TGViewPort *fViewPort; // container viewport
TGCanvas *fCanvas; // pointer to canvas
const TGWindow *fMsgWindow; // window handling container messages
TGFrameElement *fLastActiveEl; // last active item
Int_t fXp, fYp; // previous pointer position
Int_t fX0, fY0; // corner of rubber band box
Int_t fXf, fYf; // other corner of rubber band box
Bool_t fDragging; // true if in dragging mode
Int_t fTotal; // total items
Int_t fSelected; // number of selected items
TTimer *fScrollTimer; // autoscroll timer
Bool_t fOnMouseOver; // kTRUE when mouse pointer is over entry
Bool_t fLastDir; // direction of last search
Bool_t fLastCase; // case sensetivity of last search
Bool_t fLastSubstring; // substring search option of last search
TString fLastName; // the name of object of last search
TTimer *fKeyTimer; // keyboard timer
TString fKeyInput; // keyboard input (buffer)
Bool_t fKeyTimerActive;// kTRUE - keyboard timer is active
Bool_t fScrolling; // kTRUE - when scrolling is ON
Int_t fXDND, fYDND;
Bool_t fBdown;
TGRectangle fExposedRegion; // exposed area
static TGGC *fgLineGC;
static const TGGC &GetLineGC();
virtual void DoRedraw();
virtual void ActivateItem(TGFrameElement* el);
virtual void DeActivateItem(TGFrameElement* el);
virtual void SearchPattern();
virtual void OnAutoScroll();
virtual void RepeatSearch();
private:
TGContainer(const TGContainer&); // not implemented
TGContainer& operator=(const TGContainer&); // not implemented
public:
TGContainer(const TGWindow *p = 0, UInt_t w = 1, UInt_t h = 1,
UInt_t options = kSunkenFrame,
Pixel_t back = GetDefaultFrameBackground());
TGContainer(TGCanvas *p,UInt_t options = kSunkenFrame,
Pixel_t back = GetDefaultFrameBackground());
virtual ~TGContainer();
virtual void DrawRegion(Int_t x, Int_t y, UInt_t w, UInt_t h);
virtual void ClearViewPort();
virtual void Associate(const TGWindow *w) { fMsgWindow = w; }
virtual void AdjustPosition();
virtual void SetPagePosition(const TGPosition& pos);
virtual void SetPagePosition(Int_t x, Int_t y);
virtual void SetPageDimension(const TGDimension& dim);
virtual void SetPageDimension(UInt_t w, UInt_t h);
virtual void RemoveAll();
virtual void RemoveItem(TGFrame *item);
virtual void Layout();
TGCanvas *GetCanvas() const { return fCanvas; }
const TGWindow *GetMessageWindow() const { return fMsgWindow; }
virtual TGPosition GetPagePosition() const;
virtual TGDimension GetPageDimension() const;
virtual Int_t NumSelected() const { return fSelected; }
virtual Int_t NumItems() const { return fTotal; }
virtual TGFrameElement *FindFrame(Int_t x,Int_t y,Bool_t exclude=kTRUE);
virtual TGFrame *FindFrameByName(const char *name);
virtual TGHScrollBar *GetHScrollbar() const;
virtual TGVScrollBar *GetVScrollbar() const;
virtual void SetHsbPosition(Int_t newPos);
virtual void SetVsbPosition(Int_t newPos);
virtual void LineUp(Bool_t select = kFALSE);
virtual void LineDown(Bool_t select = kFALSE);
virtual void LineLeft(Bool_t select = kFALSE);
virtual void LineRight(Bool_t select = kFALSE);
virtual void PageUp(Bool_t select = kFALSE);
virtual void PageDown(Bool_t select = kFALSE);
virtual void Home(Bool_t select = kFALSE);
virtual void End(Bool_t select = kFALSE);
virtual void Search(Bool_t close = kTRUE);
virtual void *FindItem(const TString& name,
Bool_t direction = kTRUE,
Bool_t caseSensitive = kTRUE,
Bool_t subString = kFALSE);
virtual const TGFrame *GetNextSelected(void **current);
virtual TGFrame *GetLastActive() const { return fLastActiveEl ? fLastActiveEl->fFrame : 0; }
virtual void SavePrimitive(ostream &out, Option_t *option = "");
virtual Bool_t HandleDNDFinished() { fBdown = kFALSE; return kTRUE; }
virtual Bool_t HandleExpose(Event_t *event);
virtual Bool_t HandleButton(Event_t *event);
virtual Bool_t HandleDoubleClick(Event_t *event);
virtual Bool_t HandleMotion(Event_t *event);
virtual Bool_t HandleKey(Event_t *event);
const TGPicture *GetObjPicture(TGFrame *f);
virtual void SetDragPixmap(const TGPicture *pic);
virtual void SelectAll(); //*SIGNAL*
virtual void UnSelectAll(); //*SIGNAL*
virtual void InvertSelection(); //*SIGNAL*
virtual void ReturnPressed(TGFrame*); //*SIGNAL*
virtual void SpacePressed(TGFrame*); //*SIGNAL*
virtual void KeyPressed(TGFrame*, UInt_t keysym, UInt_t mask); //*SIGNAL*
virtual void OnMouseOver(TGFrame*); //*SIGNAL*
virtual void CurrentChanged(Int_t x,Int_t y);//*SIGNAL*
virtual void CurrentChanged(TGFrame* f); //*SIGNAL*
virtual void Clicked(TGFrame *f, Int_t btn); //*SIGNAL*
virtual void DoubleClicked(TGFrame *f, Int_t btn); //*SIGNAL*
virtual void DoubleClicked(TGFrame *f, Int_t btn, Int_t x, Int_t y); //*SIGNAL*
virtual void Clicked(TGFrame *f, Int_t btn, Int_t x, Int_t y); //*SIGNAL*
ClassDef(TGContainer,0) // Canvas container
};
class TGViewPort : public TGCompositeFrame {
protected:
Int_t fX0, fY0; // position of container frame in viewport
TGFrame *fContainer; // container frame
private:
TGViewPort(const TGViewPort&); // not implemented
TGViewPort& operator=(const TGViewPort&); // not implemented
public:
TGViewPort(const TGWindow *p = 0, UInt_t w = 1, UInt_t h = 1,
UInt_t options = kChildFrame,
Pixel_t back = GetDefaultFrameBackground());
TGFrame *GetContainer() const { return fContainer; }
void SetContainer(TGFrame *f);
virtual void DrawBorder() { };
virtual void Layout() { }
virtual TGDimension GetDefaultSize() const { return TGDimension(fWidth, fHeight); }
virtual void SetHPos(Int_t xpos);
virtual void SetVPos(Int_t ypos);
void SetPos(Int_t xpos, Int_t ypos);
Int_t GetHPos() const { return fX0; }
Int_t GetVPos() const { return fY0; }
virtual Bool_t HandleConfigureNotify(Event_t *event);
ClassDef(TGViewPort,0) // Viewport through which to look at a container frame
};
class TGCanvas : public TGFrame {
protected:
TGViewPort *fVport; // viewport through which we look at contents
TGHScrollBar *fHScrollbar; // horizontal scrollbar
TGVScrollBar *fVScrollbar; // vertical scrollbar
Int_t fScrolling; // flag which scrolling modes are allowed
private:
TGCanvas(const TGCanvas&); // not implemented
TGCanvas& operator=(const TGCanvas&); // not implemented
public:
enum { kCanvasNoScroll = 0,
kCanvasScrollHorizontal = BIT(0),
kCanvasScrollVertical = BIT(1),
kCanvasScrollBoth = (kCanvasScrollHorizontal | kCanvasScrollVertical)
};
TGCanvas(const TGWindow *p = 0, UInt_t w = 1, UInt_t h = 1,
UInt_t options = kSunkenFrame | kDoubleBorder,
Pixel_t back = GetDefaultFrameBackground());
virtual ~TGCanvas();
TGFrame *GetContainer() const { return fVport->GetContainer(); }
TGViewPort *GetViewPort() const { return fVport; }
TGHScrollBar *GetHScrollbar() const { return fHScrollbar; }
TGVScrollBar *GetVScrollbar() const { return fVScrollbar; }
virtual void AddFrame(TGFrame *f, TGLayoutHints *l = 0);
virtual void SetContainer(TGFrame *f) { fVport->SetContainer(f); }
virtual void MapSubwindows();
virtual void DrawBorder();
virtual void Layout();
virtual void ClearViewPort();
virtual Int_t GetHsbPosition() const;
virtual Int_t GetVsbPosition() const;
virtual void SetHsbPosition(Int_t newPos);
virtual void SetVsbPosition(Int_t newPos);
void SetScrolling(Int_t scrolling);
Int_t GetScrolling() const { return fScrolling; }
virtual TGDimension GetDefaultSize() const { return TGDimension(fWidth, fHeight); }
virtual Bool_t ProcessMessage(Long_t msg, Long_t parm1, Long_t parm2);
virtual void SavePrimitive(ostream &out, Option_t *option = "");
ClassDef(TGCanvas,0) // A canvas with two scrollbars and a viewport
};
#endif
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