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	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: wx/mac/classic/glcanvas.h
	3	// Purpose: wxGLCanvas, for using OpenGL with wxWidgets under Macintosh
	4	// Author: Stefan Csomor
	5	// Modified by:
	6	// Created: 1998-01-01
	7	// RCS-ID: $Id$
	8	// Copyright: (c) Stefan Csomor
	9	// Licence: wxWindows licence
	10	/////////////////////////////////////////////////////////////////////////////
	11
	12	#ifndef _WX_GLCANVAS_H_
	13	#define _WX_GLCANVAS_H_
	14
	15	#include "wx/defs.h"
	16
	17	#if wxUSE_GLCANVAS
	18
	19	#include "wx/palette.h"
	20	#include "wx/scrolwin.h"
	21	#include "wx/app.h"
	22
	23	#ifdef __DARWIN__
	24	# include <OpenGL/gl.h>
	25	# include <AGL/agl.h>
	26	#else
	27	# include <gl.h>
	28	# include <agl.h>
	29	#endif
	30
	31	//---------------------------------------------------------------------------
	32	// Constants for attriblist
	33	//---------------------------------------------------------------------------
	34
	35	enum
	36	{
	37	WX_GL_RGBA=1, /* use true color palette */
	38	WX_GL_BUFFER_SIZE, /* bits for buffer if not WX_GL_RGBA */
	39	WX_GL_LEVEL, /* 0 for main buffer, >0 for overlay, <0 for underlay */
	40	WX_GL_DOUBLEBUFFER, /* use doublebuffer */
	41	WX_GL_STEREO, /* use stereoscopic display */
	42	WX_GL_AUX_BUFFERS, /* number of auxiliary buffers */
	43	WX_GL_MIN_RED, /* use red buffer with most bits (> MIN_RED bits) */
	44	WX_GL_MIN_GREEN, /* use green buffer with most bits (> MIN_GREEN bits) */
	45	WX_GL_MIN_BLUE, /* use blue buffer with most bits (> MIN_BLUE bits) */
	46	WX_GL_MIN_ALPHA, /* use blue buffer with most bits (> MIN_ALPHA bits) */
	47	WX_GL_DEPTH_SIZE, /* bits for Z-buffer (0,16,32) */
	48	WX_GL_STENCIL_SIZE, /* bits for stencil buffer */
	49	WX_GL_MIN_ACCUM_RED, /* use red accum buffer with most bits (> MIN_ACCUM_RED bits) */
	50	WX_GL_MIN_ACCUM_GREEN, /* use green buffer with most bits (> MIN_ACCUM_GREEN bits) */
	51	WX_GL_MIN_ACCUM_BLUE, /* use blue buffer with most bits (> MIN_ACCUM_BLUE bits) */
	52	WX_GL_MIN_ACCUM_ALPHA /* use blue buffer with most bits (> MIN_ACCUM_ALPHA bits) */
	53	};
	54
	55	class WXDLLEXPORT wxGLCanvas; /* forward reference */
	56
	57	class WXDLLEXPORT wxGLContext: public wxObject
	58	{
	59	public:
	60	wxGLContext(AGLPixelFormat fmt, wxGLCanvas *win,
	61	const wxPalette& WXUNUSED(palette),
	62	const wxGLContext other / for sharing display lists */
	63	);
	64	virtual ~wxGLContext();
	65
	66	void SetCurrent();
	67	void Update(); // must be called after window drag/grows/zoom or clut change
	68	void SetColour(const wxChar *colour);
	69	void SwapBuffers();
	70
	71
	72	inline wxWindow* GetWindow() const { return m_window; }
	73	inline AGLDrawable GetDrawable() const { return m_drawable; }
	74
	75	public:
	76	AGLContext m_glContext;
	77	AGLDrawable m_drawable;
	78	wxWindow* m_window;
	79	};
	80
	81	class WXDLLEXPORT wxGLCanvas: public wxWindow
	82	{
	83	DECLARE_CLASS(wxGLCanvas)
	84	public:
	85	wxGLCanvas(wxWindow *parent, wxWindowID id = wxID_ANY, const wxPoint& pos = wxDefaultPosition,
	86	const wxSize& size = wxDefaultSize, long style = 0,
	87	const wxString& name = wxT("GLCanvas") , int *attribList = 0, const wxPalette& palette = wxNullPalette);
	88	wxGLCanvas( wxWindow parent, const wxGLContext shared,
	89	wxWindowID id = wxID_ANY, const wxPoint& pos = wxDefaultPosition,
	90	const wxSize& size = wxDefaultSize, long style = 0, const wxString& name = wxT("GLCanvas"),
	91	int attribList = (int) NULL, const wxPalette& palette = wxNullPalette );
	92
	93	wxGLCanvas( wxWindow parent, const wxGLCanvas shared, wxWindowID id = wxID_ANY,
	94	const wxPoint& pos = wxDefaultPosition, const wxSize& size = wxDefaultSize, long style = 0,
	95	const wxString& name = wxT("GLCanvas"), int *attribList = 0, const wxPalette& palette = wxNullPalette );
	96
	97	virtual ~wxGLCanvas();
	98
	99	bool Create(wxWindow parent, const wxGLContext shared, wxWindowID id,
	100	const wxPoint& pos, const wxSize& size, long style, const wxString& name,
	101	int *attribList, const wxPalette& palette);
	102
	103	void SetCurrent();
	104	void SetColour(const wxChar *colour);
	105	void SwapBuffers();
	106	void UpdateContext();
	107	void SetViewport();
	108	virtual bool Show(bool show = true) ;
	109
	110	// Unlike some other platforms, this must get called if you override it.
	111	// It sets the viewport correctly and update the context.
	112	// You shouldn't call glViewport yourself either (use SetViewport if you must reset it.)
	113	void OnSize(wxSizeEvent& event);
	114
	115	virtual void MacSuperChangedPosition() ;
	116	virtual void MacTopLevelWindowChangedPosition() ;
	117	virtual void MacSuperShown( bool show ) ;
	118
	119	void MacUpdateView() ;
	120
	121	inline wxGLContext* GetContext() const { return m_glContext; }
	122
	123	protected:
	124	wxGLContext* m_glContext;
	125	bool m_macCanvasIsShown ;
	126	DECLARE_EVENT_TABLE()
	127	};
	128
	129	#endif // wxUSE_GLCANVAS
	130	#endif // _WX_GLCANVAS_H_