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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 licence
	10	/////////////////////////////////////////////////////////////////////////////
	11
	12	#ifndef __WX_COCOA_DC_H__
	13	#define __WX_COCOA_DC_H__
	14
	15	DECLARE_WXCOCOA_OBJC_CLASS(NSAffineTransform);
	16
	17	class WXDLLEXPORT wxDC;
	18	WX_DECLARE_LIST(wxDC, wxCocoaDCStack);
	19
	20	//=========================================================================
	21	// wxDC
	22	//=========================================================================
	23	class WXDLLEXPORT wxDC: public wxDCBase
	24	{
	25	DECLARE_DYNAMIC_CLASS(wxDC)
	26	DECLARE_NO_COPY_CLASS(wxDC)
	27	//-------------------------------------------------------------------------
	28	// Initialization
	29	//-------------------------------------------------------------------------
	30	public:
	31	wxDC();
	32	virtual ~wxDC();
	33
	34	//-------------------------------------------------------------------------
	35	// wxCocoa specifics
	36	//-------------------------------------------------------------------------
	37	public:
	38	static void CocoaInitializeTextSystem();
	39	static void CocoaShutdownTextSystem();
	40	static WX_NSTextStorage sm_cocoaNSTextStorage;
	41	static WX_NSLayoutManager sm_cocoaNSLayoutManager;
	42	static WX_NSTextContainer sm_cocoaNSTextContainer;
	43	// Create a simple Wx to Bounds transform (just flip the coordinate system)
	44	static WX_NSAffineTransform CocoaGetWxToBoundsTransform(bool isFlipped, float height);
	45	protected:
	46	// DC stack
	47	static wxCocoaDCStack sm_cocoaDCStack;
	48	virtual bool CocoaLockFocus();
	49	virtual bool CocoaUnlockFocus();
	50	bool CocoaUnwindStackAndTakeFocus();
	51	inline bool CocoaTakeFocus()
	52	{
	53	wxCocoaDCStack::compatibility_iterator node = sm_cocoaDCStack.GetFirst();
	54	if(node && (node->GetData() == this))
	55	return true;
	56	return CocoaUnwindStackAndTakeFocus();
	57	}
	58	void CocoaUnwindStackAndLoseFocus();
	59	// DC flipping/transformation
	60	void CocoaApplyTransformations();
	61	void CocoaUnapplyTransformations();
	62	WX_NSAffineTransform m_cocoaWxToBoundsTransform;
	63	// Get bounds rect (for Clear())
	64	// note: we use void * to mean NSRect * so that we can avoid
	65	// putting NSRect in the headers.
	66	virtual bool CocoaGetBounds(void *rectData);
	67	// Blitting
	68	virtual bool CocoaDoBlitOnFocusedDC(wxCoord xdest, wxCoord ydest,
	69	wxCoord width, wxCoord height, wxCoord xsrc, wxCoord ysrc,
	70	int logicalFunc, bool useMask, wxCoord xsrcMask, wxCoord ysrcMask);
	71	//-------------------------------------------------------------------------
	72	// Implementation
	73	//-------------------------------------------------------------------------
	74	public:
	75	// implement base class pure virtuals
	76	// ----------------------------------
	77
	78	virtual void Clear();
	79
	80	virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return true; }
	81	virtual void EndDoc(void) {};
	82
	83	virtual void StartPage(void) {};
	84	virtual void EndPage(void) {};
	85
	86	virtual void SetFont(const wxFont& font) {}
	87	virtual void SetPen(const wxPen& pen);
	88	virtual void SetBrush(const wxBrush& brush);
	89	virtual void SetBackground(const wxBrush& brush);
	90	virtual void SetBackgroundMode(int mode) { m_backgroundMode = mode; }
	91	virtual void SetPalette(const wxPalette& palette);
	92
	93	virtual void DestroyClippingRegion();
	94
	95	virtual wxCoord GetCharHeight() const;
	96	virtual wxCoord GetCharWidth() const;
	97	virtual void DoGetTextExtent(const wxString& string,
	98	wxCoord x, wxCoord y,
	99	wxCoord *descent = NULL,
	100	wxCoord *externalLeading = NULL,
	101	wxFont *theFont = NULL) const;
	102
	103	virtual bool CanDrawBitmap() const;
	104	virtual bool CanGetTextExtent() const;
	105	virtual int GetDepth() const;
	106	virtual wxSize GetPPI() const;
	107
	108	virtual void SetMapMode(int mode);
	109	virtual void SetUserScale(double x, double y);
	110
	111	virtual void SetLogicalScale(double x, double y);
	112	virtual void SetLogicalOrigin(wxCoord x, wxCoord y);
	113	virtual void SetDeviceOrigin(wxCoord x, wxCoord y);
	114	virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp);
	115	virtual void SetLogicalFunction(int function);
	116
	117	virtual void SetTextForeground(const wxColour& colour) ;
	118	virtual void SetTextBackground(const wxColour& colour) ;
	119
	120	virtual void ComputeScaleAndOrigin();
	121	protected:
	122	virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
	123	int style = wxFLOOD_SURFACE);
	124
	125	virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const;
	126
	127	virtual void DoDrawPoint(wxCoord x, wxCoord y);
	128	virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2);
	129
	130	virtual void DoDrawArc(wxCoord x1, wxCoord y1,
	131	wxCoord x2, wxCoord y2,
	132	wxCoord xc, wxCoord yc);
	133
	134	virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
	135	double sa, double ea);
	136
	137	virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
	138	virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y,
	139	wxCoord width, wxCoord height,
	140	double radius);
	141	virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
	142
	143	virtual void DoCrossHair(wxCoord x, wxCoord y);
	144
	145	virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y);
	146	virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
	147	bool useMask = false);
	148
	149	virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y);
	150	virtual void DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y,
	151	double angle);
	152
	153	virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
	154	wxDC *source, wxCoord xsrc, wxCoord ysrc,
	155	int rop = wxCOPY, bool useMask = false, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1);
	156
	157	// this is gnarly - we can't even call this function DoSetClippingRegion()
	158	// because of virtual function hiding
	159	virtual void DoSetClippingRegionAsRegion(const wxRegion& region);
	160	virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
	161	wxCoord width, wxCoord height);
	162
	163	virtual void DoGetSize(int width, int height) const;
	164	virtual void DoGetSizeMM(int* width, int* height) const;
	165
	166	virtual void DoDrawLines(int n, wxPoint points[],
	167	wxCoord xoffset, wxCoord yoffset);
	168	virtual void DoDrawPolygon(int n, wxPoint points[],
	169	wxCoord xoffset, wxCoord yoffset,
	170	int fillStyle = wxODDEVEN_RULE);
	171	};
	172
	173	#endif // __WX_COCOA_DC_H__