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Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: wx/graphdc.h
	3	// Purpose: graphics context device bridge header
	4	// Author: Stefan Csomor
	5	// Modified by:
	6	// Created:
	7	// Copyright: (c) Stefan Csomor
	8	// RCS-ID: $Id$
	9	// Licence: wxWindows licence
	10	/////////////////////////////////////////////////////////////////////////////
	11
	12	#ifndef _WX_GRAPHICS_DC_H_
	13	#define _WX_GRAPHICS_DC_H_
	14
	15	#if wxUSE_GRAPHICS_CONTEXT
	16
	17	#include "wx/geometry.h"
	18	#include "wx/dynarray.h"
	19	#include "wx/graphics.h"
	20
	21	class WXDLLEXPORT wxWindowDC;
	22
	23	#ifdef __WXMAC__
	24	#define wxGCDC wxDC
	25	#endif
	26
	27	class WXDLLEXPORT wxGCDC:
	28	#ifdef __WXMAC__
	29	public wxDCBase
	30	#else
	31	public wxDC
	32	#endif
	33	{
	34	DECLARE_DYNAMIC_CLASS(wxGCDC)
	35	DECLARE_NO_COPY_CLASS(wxGCDC)
	36
	37	public:
	38	wxGCDC(const wxWindowDC& dc);
	39	#ifdef __WXMSW__
	40	wxGCDC( const wxMemoryDC& dc);
	41	#endif
	42	wxGCDC();
	43	virtual ~wxGCDC();
	44
	45	void Init();
	46
	47
	48	// implement base class pure virtuals
	49	// ----------------------------------
	50
	51	virtual void Clear();
	52
	53	virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return true; }
	54	virtual void EndDoc(void) {}
	55
	56	virtual void StartPage(void) {}
	57	virtual void EndPage(void) {}
	58
	59	virtual void SetFont(const wxFont& font);
	60	virtual void SetPen(const wxPen& pen);
	61	virtual void SetBrush(const wxBrush& brush);
	62	virtual void SetBackground(const wxBrush& brush);
	63	virtual void SetBackgroundMode(int mode);
	64	virtual void SetPalette(const wxPalette& palette);
	65
	66	virtual void DestroyClippingRegion();
	67
	68	virtual wxCoord GetCharHeight() const;
	69	virtual wxCoord GetCharWidth() const;
	70
	71	virtual bool CanDrawBitmap() const;
	72	virtual bool CanGetTextExtent() const;
	73	virtual int GetDepth() const;
	74	virtual wxSize GetPPI() const;
	75
	76	virtual void SetMapMode(int mode);
	77	virtual void SetUserScale(double x, double y);
	78
	79	virtual void SetLogicalScale(double x, double y);
	80	virtual void SetLogicalOrigin(wxCoord x, wxCoord y);
	81	virtual void SetDeviceOrigin(wxCoord x, wxCoord y);
	82	virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp);
	83	virtual void SetLogicalFunction(int function);
	84
	85	virtual void SetTextForeground(const wxColour& colour);
	86	virtual void SetTextBackground(const wxColour& colour);
	87
	88	virtual void ComputeScaleAndOrigin();
	89
	90	wxGraphicsContext* GetGraphicsContext() { return m_graphicContext; }
	91	virtual void SetGraphicsContext( wxGraphicsContext* ctx );
	92
	93	protected:
	94	// the true implementations
	95	virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
	96	int style = wxFLOOD_SURFACE);
	97
	98	virtual void DoGradientFillLinear(const wxRect& rect,
	99	const wxColour& initialColour,
	100	const wxColour& destColour,
	101	wxDirection nDirection = wxEAST);
	102
	103	virtual void DoGradientFillConcentric(const wxRect& rect,
	104	const wxColour& initialColour,
	105	const wxColour& destColour,
	106	const wxPoint& circleCenter);
	107
	108	virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const;
	109
	110	virtual void DoDrawPoint(wxCoord x, wxCoord y);
	111
	112	#if wxUSE_SPLINES
	113	virtual void DoDrawSpline(wxList *points);
	114	#endif
	115
	116	virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2);
	117
	118	virtual void DoDrawArc(wxCoord x1, wxCoord y1,
	119	wxCoord x2, wxCoord y2,
	120	wxCoord xc, wxCoord yc);
	121
	122	virtual void DoDrawCheckMark(wxCoord x, wxCoord y,
	123	wxCoord width, wxCoord height);
	124
	125	virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
	126	double sa, double ea);
	127
	128	virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
	129	virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y,
	130	wxCoord width, wxCoord height,
	131	double radius);
	132	virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
	133
	134	virtual void DoCrossHair(wxCoord x, wxCoord y);
	135
	136	virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y);
	137	virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
	138	bool useMask = false);
	139
	140	virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y);
	141	virtual void DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y,
	142	double angle);
	143
	144	virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
	145	wxDC *source, wxCoord xsrc, wxCoord ysrc,
	146	int rop = wxCOPY, bool useMask = false, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1);
	147
	148	virtual void DoGetSize(int ,int ) const;
	149	virtual void DoGetSizeMM(int* width, int* height) const;
	150
	151	virtual void DoDrawLines(int n, wxPoint points[],
	152	wxCoord xoffset, wxCoord yoffset);
	153	virtual void DoDrawPolygon(int n, wxPoint points[],
	154	wxCoord xoffset, wxCoord yoffset,
	155	int fillStyle = wxODDEVEN_RULE);
	156	virtual void DoDrawPolyPolygon(int n, int count[], wxPoint points[],
	157	wxCoord xoffset, wxCoord yoffset,
	158	int fillStyle);
	159
	160	virtual void DoSetClippingRegionAsRegion(const wxRegion& region);
	161	virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
	162	wxCoord width, wxCoord height);
	163
	164	virtual void DoGetTextExtent(const wxString& string,
	165	wxCoord x, wxCoord y,
	166	wxCoord *descent = NULL,
	167	wxCoord *externalLeading = NULL,
	168	wxFont *theFont = NULL) const;
	169
	170	virtual bool DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const;
	171
	172	protected:
	173	// scaling variables
	174	bool m_logicalFunctionSupported;
	175	double m_mm_to_pix_x, m_mm_to_pix_y;
	176	wxGraphicsMatrix m_matrixOriginal;
	177	wxGraphicsMatrix m_matrixCurrent;
	178
	179	double m_formerScaleX, m_formerScaleY;
	180
	181	wxGraphicsContext* m_graphicContext;
	182	};
	183
	184	#endif
	185
	186	#endif // _WX_GRAPHICS_DC_H_