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Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: wx/cocoa/dc.h
	3	// Purpose: wxDC
	4	// Author: David Elliott
	5	// Modified by:
	6	// Created: 2003/04/01
	7	// RCS-ID: $Id$
	8	// Copyright: (c) 2003 David Elliott
	9	// Licence: wxWindows license
	10	/////////////////////////////////////////////////////////////////////////////
	11
	12	#ifndef __WX_COCOA_DC_H__
	13	#define __WX_COCOA_DC_H__
	14
	15	class WXDLLEXPORT wxDC;
	16	WX_DECLARE_LIST(wxDC, wxCocoaDCStack);
	17
	18	//=========================================================================
	19	// wxDC
	20	//=========================================================================
	21	class WXDLLEXPORT wxDC: public wxDCBase
	22	{
	23	DECLARE_DYNAMIC_CLASS(wxDC)
	24	DECLARE_NO_COPY_CLASS(wxDC)
	25	//-------------------------------------------------------------------------
	26	// Initialization
	27	//-------------------------------------------------------------------------
	28	public:
	29	wxDC();
	30	~wxDC();
	31
	32	//-------------------------------------------------------------------------
	33	// wxCocoa specifics
	34	//-------------------------------------------------------------------------
	35	public:
	36	static void CocoaInitializeTextSystem();
	37	static void CocoaShutdownTextSystem();
	38	static WX_NSTextStorage sm_cocoaNSTextStorage;
	39	static WX_NSLayoutManager sm_cocoaNSLayoutManager;
	40	static WX_NSTextContainer sm_cocoaNSTextContainer;
	41	protected:
	42	// DC stack
	43	static wxCocoaDCStack sm_cocoaDCStack;
	44	virtual bool CocoaLockFocus();
	45	virtual bool CocoaUnlockFocus();
	46	bool CocoaUnwindStackAndTakeFocus();
	47	inline bool CocoaTakeFocus()
	48	{
	49	wxCocoaDCStack::Node *node = sm_cocoaDCStack.GetFirst();
	50	if(node && (node->GetData() == this))
	51	return true;
	52	return CocoaUnwindStackAndTakeFocus();
	53	}
	54	void CocoaUnwindStackAndLoseFocus();
	55	// DC flipping/transformation
	56	void CocoaApplyTransformations();
	57	float m_cocoaHeight;
	58	bool m_cocoaFlipped;
	59	// Blitting
	60	virtual bool CocoaDoBlitOnFocusedDC(wxCoord xdest, wxCoord ydest,
	61	wxCoord width, wxCoord height, wxCoord xsrc, wxCoord ysrc,
	62	int logicalFunc, bool useMask, wxCoord xsrcMask, wxCoord ysrcMask);
	63	//-------------------------------------------------------------------------
	64	// Implementation
	65	//-------------------------------------------------------------------------
	66	public:
	67	// implement base class pure virtuals
	68	// ----------------------------------
	69
	70	virtual void Clear();
	71
	72	virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return TRUE; }
	73	virtual void EndDoc(void) {};
	74
	75	virtual void StartPage(void) {};
	76	virtual void EndPage(void) {};
	77
	78	virtual void SetFont(const wxFont& font) {}
	79	virtual void SetPen(const wxPen& pen);
	80	virtual void SetBrush(const wxBrush& brush);
	81	virtual void SetBackground(const wxBrush& brush);
	82	virtual void SetBackgroundMode(int mode) { m_backgroundMode = mode; }
	83	virtual void SetPalette(const wxPalette& palette);
	84
	85	virtual void DestroyClippingRegion();
	86
	87	virtual wxCoord GetCharHeight() const;
	88	virtual wxCoord GetCharWidth() const;
	89	virtual void DoGetTextExtent(const wxString& string,
	90	wxCoord x, wxCoord y,
	91	wxCoord *descent = NULL,
	92	wxCoord *externalLeading = NULL,
	93	wxFont *theFont = NULL) const;
	94
	95	virtual bool CanDrawBitmap() const;
	96	virtual bool CanGetTextExtent() const;
	97	virtual int GetDepth() const;
	98	virtual wxSize GetPPI() const;
	99
	100	virtual void SetMapMode(int mode);
	101	virtual void SetUserScale(double x, double y);
	102
	103	virtual void SetLogicalScale(double x, double y);
	104	virtual void SetLogicalOrigin(wxCoord x, wxCoord y);
	105	virtual void SetDeviceOrigin(wxCoord x, wxCoord y);
	106	virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp);
	107	virtual void SetLogicalFunction(int function);
	108
	109	virtual void SetTextForeground(const wxColour& colour) ;
	110	virtual void SetTextBackground(const wxColour& colour) ;
	111
	112	void ComputeScaleAndOrigin(void);
	113	protected:
	114	virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
	115	int style = wxFLOOD_SURFACE);
	116
	117	virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const;
	118
	119	virtual void DoDrawPoint(wxCoord x, wxCoord y);
	120	virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2);
	121
	122	virtual void DoDrawArc(wxCoord x1, wxCoord y1,
	123	wxCoord x2, wxCoord y2,
	124	wxCoord xc, wxCoord yc);
	125
	126	virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
	127	double sa, double ea);
	128
	129	virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
	130	virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y,
	131	wxCoord width, wxCoord height,
	132	double radius);
	133	virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
	134
	135	virtual void DoCrossHair(wxCoord x, wxCoord y);
	136
	137	virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y);
	138	virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
	139	bool useMask = FALSE);
	140
	141	virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y);
	142	virtual void DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y,
	143	double angle);
	144
	145	virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
	146	wxDC *source, wxCoord xsrc, wxCoord ysrc,
	147	int rop = wxCOPY, bool useMask = FALSE, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1);
	148
	149	// this is gnarly - we can't even call this function DoSetClippingRegion()
	150	// because of virtual function hiding
	151	virtual void DoSetClippingRegionAsRegion(const wxRegion& region);
	152	virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
	153	wxCoord width, wxCoord height);
	154
	155	virtual void DoGetSize(int width, int height) const;
	156	virtual void DoGetSizeMM(int* width, int* height) const;
	157
	158	virtual void DoDrawLines(int n, wxPoint points[],
	159	wxCoord xoffset, wxCoord yoffset);
	160	virtual void DoDrawPolygon(int n, wxPoint points[],
	161	wxCoord xoffset, wxCoord yoffset,
	162	int fillStyle = wxODDEVEN_RULE);
	163	};
	164
	165	#endif // __WX_COCOA_DC_H__