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TGCocoa.h
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1 // @(#)root/graf2d:$Id$
2 // Author: Timur Pocheptsov 22/11/2011
3 
4 /*************************************************************************
5  * Copyright (C) 1995-2012, Rene Brun and Fons Rademakers. *
6  * All rights reserved. *
7  * *
8  * For the licensing terms see $ROOTSYS/LICENSE. *
9  * For the list of contributors see $ROOTSYS/README/CREDITS. *
10  *************************************************************************/
11 
12 
13 #ifndef ROOT_TGCocoa
14 #define ROOT_TGCocoa
15 
16 #include "CocoaGuiTypes.h"
17 #include "TVirtualX.h"
18 #include "X11Atoms.h"
19 
20 #include <map>
21 #include <memory>
22 #include <string>
23 #include <utility>
24 #include <vector>
25 
26 /// \defgroup cocoa Cocoa backend
27 /// \brief Interface to MacOS native graphics system.
28 /// \ingroup GraphicsBackends
29 
30 /** \class TGCocoa
31 \ingroup cocoa
32 
33 This class implements TVirtualX interface for MacOS X, using Cocoa and Quartz 2D.
34 
35 TVirtualX is a typical fat interface, it's a "C++ wrapper" for
36 X11 library. It's a union of several orthogonal interfaces like:
37 color management, window management, pixmap management, cursors,
38 events, images, drag and drop, font management, gui-rendering,
39 non-gui graphics, etc. etc.
40 */
41 
42 namespace ROOT {
43 namespace MacOSX {
44 
45 namespace X11 {
46 class EventTranslator;
47 class CommandBuffer;
48 
49 }
50 
51 namespace Details {
52 class CocoaPrivate;
53 }
54 
55 }
56 }
57 
58 class TGCocoa : public TVirtualX {
59 public:
60  TGCocoa();
61  TGCocoa(const char *name, const char *title);
62 
63  ~TGCocoa();
64 
65  //TVirtualX final overriders.
66  //I split them in a group not to get lost in this fat interface.
67 
68  ///////////////////////////////////////
69  //General.
70  virtual Bool_t Init(void *display);
71  virtual Int_t OpenDisplay(const char *displayName);
72  virtual const char *DisplayName(const char *);
73  virtual Int_t SupportsExtension(const char *extensionName)const;
74  virtual void CloseDisplay();
75  virtual Display_t GetDisplay()const;
76  virtual Visual_t GetVisual()const;
77  virtual Int_t GetScreen()const;
78  virtual UInt_t ScreenWidthMM()const;
79  virtual Int_t GetDepth()const;
80  virtual void Update(Int_t mode);
81 
82  //Non-virtual functions.
83  void ReconfigureDisplay();
84  ROOT::MacOSX::X11::Rectangle GetDisplayGeometry()const;
85  //End of general.
86  ///////////////////////////////////////
87 
88  ///////////////////////////////////////
89  //Window management part:
90  virtual Window_t GetDefaultRootWindow()const;
91  //-Functions used by TCanvas/TPad (work with window, selected by SelectWindow).
92  virtual Int_t InitWindow(ULong_t window);
93  virtual Window_t GetWindowID(Int_t wid);//TGCocoa simply returns wid.
94  virtual void SelectWindow(Int_t wid);
95  virtual void ClearWindow();
96  virtual void GetGeometry(Int_t wid, Int_t &x, Int_t &y, UInt_t &w, UInt_t &h);
97  virtual void MoveWindow(Int_t wid, Int_t x, Int_t y);
98  virtual void RescaleWindow(Int_t wid, UInt_t w, UInt_t h);
99  virtual void ResizeWindow(Int_t wid);
100  virtual void UpdateWindow(Int_t mode);
101  virtual Window_t GetCurrentWindow()const;
102  virtual void CloseWindow();
103  virtual Int_t AddWindow(ULong_t qwid, UInt_t w, UInt_t h); //-"Qt ROOT".
104  virtual void RemoveWindow(ULong_t qwid); //-"Qt ROOT".
105 
106 
107  //-Functions used by GUI.
108  virtual Window_t CreateWindow(Window_t parent, Int_t x, Int_t y,
109  UInt_t w, UInt_t h, UInt_t border,
110  Int_t depth, UInt_t clss,
111  void *visual, SetWindowAttributes_t *attr,
112  UInt_t wtype);
113 
114 
115  virtual void DestroyWindow(Window_t wid);
116  virtual void DestroySubwindows(Window_t wid);
117 
118  virtual void GetWindowAttributes(Window_t wid, WindowAttributes_t &attr);
119  virtual void ChangeWindowAttributes(Window_t wid, SetWindowAttributes_t *attr);
120  virtual void SelectInput(Window_t wid, UInt_t evmask);//Can also be in events-related part.
121 
122  void ReparentChild(Window_t wid, Window_t pid, Int_t x, Int_t y);//Non-overrider.
123  void ReparentTopLevel(Window_t wid, Window_t pid, Int_t x, Int_t y);//Non-overrider.
124  virtual void ReparentWindow(Window_t wid, Window_t pid, Int_t x, Int_t y);
125 
126  virtual void MapWindow(Window_t wid);
127  virtual void MapSubwindows(Window_t wid);
128  virtual void MapRaised(Window_t wid);
129  virtual void UnmapWindow(Window_t wid);
130  virtual void RaiseWindow(Window_t wid);
131  virtual void LowerWindow(Window_t wid);
132 
133  virtual void MoveWindow(Window_t wid, Int_t x, Int_t y);
134  virtual void MoveResizeWindow(Window_t wid, Int_t x, Int_t y, UInt_t w, UInt_t h);
135  virtual void ResizeWindow(Window_t wid, UInt_t w, UInt_t h);
136  virtual void IconifyWindow(Window_t wid);
137  virtual void TranslateCoordinates(Window_t src, Window_t dest, Int_t src_x,Int_t src_y,
138  Int_t &dest_x, Int_t &dest_y, Window_t &child);
139  virtual void GetWindowSize(Drawable_t wid, Int_t &x, Int_t &y, UInt_t &w, UInt_t &h);
140 
141 
142  virtual void SetWindowBackground(Window_t wid, ULong_t color);
143  virtual void SetWindowBackgroundPixmap(Window_t wid, Pixmap_t pxm);
144 
145  virtual Window_t GetParent(Window_t wid)const;
146 
147  virtual void SetWindowName(Window_t wid, char *name);
148  virtual void SetIconName(Window_t wid, char *name);
149  virtual void SetIconPixmap(Window_t wid, Pixmap_t pix);
150  virtual void SetClassHints(Window_t wid, char *className, char *resourceName);
151  //Non-rectangular window:
152  virtual void ShapeCombineMask(Window_t wid, Int_t x, Int_t y, Pixmap_t mask);
153 
154  //End window-management part.
155  ///////////////////////////////////////
156 
157  /////////////////////////////
158  //Set of "Window manager hints".
159  virtual void SetMWMHints(Window_t winID, UInt_t value, UInt_t decorators, UInt_t inputMode);
160  virtual void SetWMPosition(Window_t winID, Int_t x, Int_t y);
161  virtual void SetWMSize(Window_t winID, UInt_t w, UInt_t h);
162  virtual void SetWMSizeHints(Window_t winID, UInt_t wMin, UInt_t hMin, UInt_t wMax, UInt_t hMax, UInt_t wInc, UInt_t hInc);
163  virtual void SetWMState(Window_t winID, EInitialState state);
164  virtual void SetWMTransientHint(Window_t winID, Window_t mainWinID);
165  //"Window manager hints".
166  /////////////////////////////
167 
168 
169  ///////////////////////////////////////
170  //GUI-rendering part.
171  void DrawLineAux(Drawable_t wid, const GCValues_t &gcVals, Int_t x1, Int_t y1, Int_t x2, Int_t y2);//Non-overrider.
172  virtual void DrawLine(Drawable_t wid, GContext_t gc, Int_t x1, Int_t y1, Int_t x2, Int_t y2);
173  void DrawSegmentsAux(Drawable_t wid, const GCValues_t &gcVals, const Segment_t *segments, Int_t nSegments);//Non-overrider.
174  virtual void DrawSegments(Drawable_t wid, GContext_t gc, Segment_t *segments, Int_t nSegments);
175  void DrawRectangleAux(Drawable_t wid, const GCValues_t &gcVals, Int_t x, Int_t y, UInt_t w, UInt_t h);//Non-overrider.
176  virtual void DrawRectangle(Drawable_t wid, GContext_t gc, Int_t x, Int_t y, UInt_t w, UInt_t h);
177  void FillRectangleAux(Drawable_t wid, const GCValues_t &gcVals, Int_t x, Int_t y, UInt_t w, UInt_t h);//Non-overrider.
178  virtual void FillRectangle(Drawable_t wid, GContext_t gc, Int_t x, Int_t y, UInt_t w, UInt_t h);
179  void FillPolygonAux(Window_t wid, const GCValues_t &gcVals, const Point_t *polygon, Int_t nPoints) ;//Non-overrider.
180  virtual void FillPolygon(Window_t wid, GContext_t gc, Point_t *polygon, Int_t nPoints);
181  void CopyAreaAux(Drawable_t src, Drawable_t dst, const GCValues_t &gc, Int_t srcX, Int_t srcY, UInt_t width,
182  UInt_t height, Int_t dstX, Int_t dstY);//Non-overrider.
183  virtual void CopyArea(Drawable_t src, Drawable_t dst, GContext_t gc, Int_t srcX, Int_t srcY, UInt_t width,
184  UInt_t height, Int_t dstX, Int_t dstY);
185  void DrawStringAux(Drawable_t wid, const GCValues_t &gc, Int_t x, Int_t y, const char *s, Int_t len);//Non-overrider.
186  virtual void DrawString(Drawable_t wid, GContext_t gc, Int_t x, Int_t y, const char *s, Int_t len);
187  void ClearAreaAux(Window_t wid, Int_t x, Int_t y, UInt_t w, UInt_t h);//Non-overrider.
188  virtual void ClearArea(Window_t wid, Int_t x, Int_t y, UInt_t w, UInt_t h);
189  virtual void ClearWindow(Window_t wid);
190  //End of GUI-rendering part.
191  ///////////////////////////////////////
192 
193 
194  ///////////////////////////////////////
195  //Pixmap management.
196  //-Used by TCanvas/TPad classes:
197  virtual Int_t OpenPixmap(UInt_t w, UInt_t h);
198  virtual Int_t ResizePixmap(Int_t wid, UInt_t w, UInt_t h);
199  virtual void SelectPixmap(Int_t qpixid);
200  virtual void CopyPixmap(Int_t wid, Int_t xpos, Int_t ypos);
201  virtual void ClosePixmap();
202  //Used by GUI.
203  virtual Pixmap_t CreatePixmap(Drawable_t wid, UInt_t w, UInt_t h);
204  virtual Pixmap_t CreatePixmap(Drawable_t wid, const char *bitmap, UInt_t width, UInt_t height,
205  ULong_t foregroundColor, ULong_t backgroundColor,
206  Int_t depth);
207  virtual Pixmap_t CreatePixmapFromData(unsigned char *bits, UInt_t width, UInt_t height);
208  virtual Pixmap_t CreateBitmap(Drawable_t wid, const char *bitmap,
209  UInt_t width, UInt_t height);
210  void DeletePixmapAux(Pixmap_t pixmapID);//Non-overrider.
211  virtual void DeletePixmap(Pixmap_t pixmapID);
212 
213  //-"Qt ROOT".
214  virtual Int_t AddPixmap(ULong_t pixid, UInt_t w, UInt_t h);
215  virtual unsigned char *GetColorBits(Drawable_t wid, Int_t x, Int_t y, UInt_t w, UInt_t h);
216  //End of pixmap management.
217  /////////////////////////////
218 
219 
220  /////////////////////////////
221  //"Images" - emulation of XCreateImage/XPutImage etc.
222  virtual Drawable_t CreateImage(UInt_t width, UInt_t height);
223  virtual void GetImageSize(Drawable_t wid, UInt_t &width, UInt_t &height);
224  virtual void PutPixel(Drawable_t wid, Int_t x, Int_t y, ULong_t pixel);
225  virtual void PutImage(Drawable_t wid, GContext_t gc, Drawable_t img, Int_t dx, Int_t dy,
226  Int_t x, Int_t y, UInt_t w, UInt_t h);
227  virtual void DeleteImage(Drawable_t img);
228  //"Images".
229  /////////////////////////////
230 
231  /////////////////////////////
232  //Mouse (cursor, events, etc.)
233  virtual void GrabButton(Window_t wid, EMouseButton button, UInt_t modifier,
234  UInt_t evmask, Window_t confine, Cursor_t cursor,
235  Bool_t grab = kTRUE);
236  virtual void GrabPointer(Window_t wid, UInt_t evmask, Window_t confine,
237  Cursor_t cursor, Bool_t grab = kTRUE,
238  Bool_t owner_events = kTRUE);
239  virtual void ChangeActivePointerGrab(Window_t, UInt_t, Cursor_t);//Noop.
240  //End of mouse related part.
241  /////////////////////////////
242 
243  /////////////////////////////
244  //Keyboard management.
245  virtual void SetKeyAutoRepeat(Bool_t on = kTRUE);
246  virtual void GrabKey(Window_t wid, Int_t keycode, UInt_t modifier, Bool_t grab = kTRUE);
247  virtual Int_t KeysymToKeycode(UInt_t keysym);
248  virtual Window_t GetInputFocus();
249  virtual void SetInputFocus(Window_t wid);
250  virtual void LookupString(Event_t *event, char *buf, Int_t buflen, UInt_t &keysym);
251  //End of keyboard management.
252  /////////////////////////////
253 
254  /////////////////////////////
255  //Font management.
256  virtual FontStruct_t LoadQueryFont(const char *font_name);
257  virtual FontH_t GetFontHandle(FontStruct_t fs);
258  virtual void DeleteFont(FontStruct_t fs);
259  virtual Bool_t HasTTFonts() const;
260  virtual Int_t TextWidth(FontStruct_t font, const char *s, Int_t len);
261  virtual void GetFontProperties(FontStruct_t font, Int_t &max_ascent, Int_t &max_descent);
262  virtual FontStruct_t GetFontStruct(FontH_t fh);
263  virtual void FreeFontStruct(FontStruct_t fs);
264  virtual char **ListFonts(const char *fontname, Int_t max, Int_t &count);
265  virtual void FreeFontNames(char **fontlist);
266  //End of font management.
267  /////////////////////////////
268 
269  /////////////////////////////
270  //Color management.
271  virtual Bool_t ParseColor(Colormap_t cmap, const char *cname, ColorStruct_t &color);
272  virtual Bool_t AllocColor(Colormap_t cmap, ColorStruct_t &color);
273  virtual void QueryColor(Colormap_t cmap, ColorStruct_t &color);
274  virtual void FreeColor(Colormap_t cmap, ULong_t pixel);
275  virtual ULong_t GetPixel(Color_t cindex);
276  virtual void GetPlanes(Int_t &nplanes);
277  virtual void GetRGB(Int_t index, Float_t &r, Float_t &g, Float_t &b);
278  virtual void SetRGB(Int_t cindex, Float_t r, Float_t g, Float_t b);
279  virtual Colormap_t GetColormap() const;
280 
281  //End of color management.
282  /////////////////////////////
283 
284  /////////////////////////////
285  //Context management.
286  virtual GContext_t CreateGC(Drawable_t wid, GCValues_t *gval);
287  virtual void SetForeground(GContext_t gc, ULong_t foreground);
288  virtual void ChangeGC(GContext_t gc, GCValues_t *gval);
289  virtual void CopyGC(GContext_t org, GContext_t dest, Mask_t mask);
290  virtual void GetGCValues(GContext_t gc, GCValues_t &gval);
291  virtual void DeleteGC(GContext_t gc);
292  //Context management.
293  /////////////////////////////
294 
295  /////////////////////////////
296  //Cursors.
297  virtual Cursor_t CreateCursor(ECursor cursor);
298  virtual void SetCursor(Window_t wid, Cursor_t curid);
299  virtual void SetCursor(Int_t win, ECursor cursor);
300  virtual void QueryPointer(Int_t &x, Int_t &y);
301  virtual void QueryPointer(Window_t wid, Window_t &rootw, Window_t &childw,
302  Int_t &root_x, Int_t &root_y, Int_t &win_x,
303  Int_t &win_y, UInt_t &mask);
304  //Cursors.
305  /////////////////////////////
306 
307 
308  /////////////////////////////
309  //OpenGL.
310  //We have a mix of Handle_t, Window_t (both are long) and Int_t (this is an obsolete version).
311  virtual Double_t GetOpenGLScalingFactor();
312  virtual Window_t CreateOpenGLWindow(Window_t parentID, UInt_t width, UInt_t height, const std::vector<std::pair<UInt_t, Int_t> > &format);
313  virtual Handle_t CreateOpenGLContext(Window_t windowID, Handle_t sharedContext);
314  virtual void CreateOpenGLContext(Int_t wid);
315  virtual Bool_t MakeOpenGLContextCurrent(Handle_t ctx, Window_t windowID);
316  virtual Handle_t GetCurrentOpenGLContext();
317  virtual void FlushOpenGLBuffer(Handle_t ctxID);
318 
319  virtual void DeleteOpenGLContext(Int_t ctxID);
320  //OpenGL.
321  /////////////////////////////
322 
323  /////////////////////////////
324  //TPad's/TCanvas' specific - "double buffer" (off-screen rendering) + 'xor' mode.
325  virtual void SetDoubleBuffer(Int_t wid, Int_t mode);
326  virtual void SetDoubleBufferOFF();
327  virtual void SetDoubleBufferON();
328  virtual void SetDrawMode(EDrawMode mode);
329  //TPad's/TCanvas'.
330  /////////////////////////////
331 
332  /////////////////////////////
333  //Event management.
334  virtual void SendEvent(Window_t wid, Event_t *ev);
335  virtual void NextEvent(Event_t &event);
336  virtual Int_t EventsPending();
337  virtual Bool_t CheckEvent(Window_t wid, EGEventType type, Event_t &ev);
338  virtual Handle_t GetNativeEvent() const;
339  //Event management.
340  /////////////////////////////
341 
342  /////////////////////////////
343  //"Drag and drop" and "Copy and paste" (quotes are intentional :)).
344 
345  //Names here are total mess, but this comes from TVirtualX interface.
346  virtual Atom_t InternAtom(const char *atom_name, Bool_t only_if_exist);
347 
348  virtual void SetPrimarySelectionOwner(Window_t wid);
349  virtual Bool_t SetSelectionOwner(Window_t windowID, Atom_t &selectionID);
350  virtual Window_t GetPrimarySelectionOwner();
351 
352  virtual void ConvertPrimarySelection(Window_t wid, Atom_t clipboard, Time_t when);
353  virtual void ConvertSelection(Window_t, Atom_t&, Atom_t&, Atom_t&, Time_t&);
354  virtual Int_t GetProperty(Window_t, Atom_t, Long_t, Long_t, Bool_t, Atom_t,
355  Atom_t*, Int_t*, ULong_t*, ULong_t*, unsigned char**);
356  virtual void GetPasteBuffer(Window_t wid, Atom_t atom, TString &text, Int_t &nchar,
357  Bool_t del);
358 
359  virtual void ChangeProperty(Window_t wid, Atom_t property, Atom_t type,
360  UChar_t *data, Int_t len);
361  virtual void ChangeProperties(Window_t wid, Atom_t property, Atom_t type,
362  Int_t format, UChar_t *data, Int_t len);
363  virtual void DeleteProperty(Window_t, Atom_t&);
364 
365  virtual void SetDNDAware(Window_t, Atom_t *);
366  virtual Bool_t IsDNDAware(Window_t win, Atom_t *typelist);
367 
368  virtual void SetTypeList(Window_t win, Atom_t prop, Atom_t *typelist);
369  //FindRWindow is in DND part, since it looks for a DND aware window.
370  virtual Window_t FindRWindow(Window_t win, Window_t dragwin, Window_t input, int x, int y, int maxd);
371  //"Drag and drop" and "Copy and paste".
372  /////////////////////////////
373 
374  //The remaining bunch of functions is not sorted yet (and not implemented at the moment).
375 
376  virtual UInt_t ExecCommand(TGWin32Command *code);
377  virtual void GetCharacterUp(Float_t &chupx, Float_t &chupy);
378 
379  virtual Int_t GetDoubleBuffer(Int_t wid);
380 
381  virtual Pixmap_t ReadGIF(Int_t x0, Int_t y0, const char *file, Window_t wid);
382  virtual Int_t RequestLocator(Int_t mode, Int_t ctyp, Int_t &x, Int_t &y);
383  virtual Int_t RequestString(Int_t x, Int_t y, char *text);
384 
385  virtual void SetCharacterUp(Float_t chupx, Float_t chupy);
386  virtual void SetClipOFF(Int_t wid);
387  virtual void SetClipRegion(Int_t wid, Int_t x, Int_t y, UInt_t w, UInt_t h);
388 
389  virtual void SetTextMagnitude(Float_t mgn);
390 
391  virtual void Sync(Int_t mode);
392  virtual void Warp(Int_t ix, Int_t iy, Window_t wid);
393  virtual Int_t WriteGIF(char *name);
394  virtual void WritePixmap(Int_t wid, UInt_t w, UInt_t h, char *pxname);
395 
396  virtual Bool_t NeedRedraw(ULong_t tgwindow, Bool_t force);
397 
398 
399  virtual Bool_t CreatePictureFromFile(Drawable_t wid, const char *filename,
400  Pixmap_t &pict, Pixmap_t &pict_mask,
401  PictureAttributes_t &attr);
402  virtual Bool_t CreatePictureFromData(Drawable_t wid, char **data,
403  Pixmap_t &pict, Pixmap_t &pict_mask,
404  PictureAttributes_t &attr);
405  virtual Bool_t ReadPictureDataFromFile(const char *filename, char ***ret_data);
406  virtual void DeletePictureData(void *data);
407  virtual void SetDashes(GContext_t gc, Int_t offset, const char *dash_list, Int_t n);
408 
409 
410  virtual void Bell(Int_t percent);
411 
412  virtual void WMDeleteNotify(Window_t wid);
413 
414  virtual void SetClipRectangles(GContext_t gc, Int_t x, Int_t y, Rectangle_t *recs, Int_t n);
415  virtual Region_t CreateRegion();
416  virtual void DestroyRegion(Region_t reg);
417  virtual void UnionRectWithRegion(Rectangle_t *rect, Region_t src, Region_t dest);
418  virtual Region_t PolygonRegion(Point_t *points, Int_t np, Bool_t winding);
419  virtual void UnionRegion(Region_t rega, Region_t regb, Region_t result);
420  virtual void IntersectRegion(Region_t rega, Region_t regb, Region_t result);
421  virtual void SubtractRegion(Region_t rega, Region_t regb, Region_t result);
422  virtual void XorRegion(Region_t rega, Region_t regb, Region_t result);
423  virtual Bool_t EmptyRegion(Region_t reg);
424  virtual Bool_t PointInRegion(Int_t x, Int_t y, Region_t reg);
425  virtual Bool_t EqualRegion(Region_t rega, Region_t regb);
426  virtual void GetRegionBox(Region_t reg, Rectangle_t *rect);
427  //
428 
429  virtual Bool_t IsCmdThread()const { return kTRUE; }
430 
431  //Non virtual, non-overriding functions.
432  ROOT::MacOSX::X11::EventTranslator *GetEventTranslator()const;
433  ROOT::MacOSX::X11::CommandBuffer *GetCommandBuffer()const;
434 
435  void CocoaDrawON();
436  void CocoaDrawOFF();
437  Bool_t IsCocoaDraw()const;
438 
439 protected:
440  void *GetCurrentContext();
441 
442  Drawable_t fSelectedDrawable;
443 
444  std::unique_ptr<ROOT::MacOSX::Details::CocoaPrivate> fPimpl; //!
445  Int_t fCocoaDraw;
446 
447  EDrawMode fDrawMode;
448  bool fDirectDraw;//Primitive in canvas tries to draw into window directly.
449 
450 private:
451  bool MakeProcessForeground();
452  Atom_t FindAtom(const std::string &atomName, bool addIfNotFound);
453  void SetApplicationIcon();
454 
455  bool fForegroundProcess;
456  std::vector<GCValues_t> fX11Contexts;
457  //
458  ROOT::MacOSX::X11::name_to_atom_map fNameToAtom;
459  std::vector<std::string> fAtomToName;
460 
461  std::map<Atom_t, Window_t> fSelectionOwners;
462  typedef std::map<Atom_t, Window_t>::iterator selection_iterator;
463 
464  bool fSetApp;
465  mutable bool fDisplayShapeChanged;
466  mutable ROOT::MacOSX::X11::Rectangle fDisplayRect;
467 
468 public:
469  static Atom_t fgDeleteWindowAtom;
470 
471 private:
472  //I'd prefer to use = delete syntax from C++0x11, but this file is processed by CINT.
473  TGCocoa(const TGCocoa &rhs);
474  TGCocoa &operator = (const TGCocoa &rhs);
475 
476  ClassDef(TGCocoa, 0); //TVirtualX for MacOS X.
477 };
478 
479 #endif