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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	#include "wx/dc.h"
	18
	19	class WXDLLIMPEXP_FWD_CORE wxCocoaDCImpl;
	20	WX_DECLARE_LIST(wxCocoaDCImpl, wxCocoaDCStack);
	21
	22	//=========================================================================
	23	// wxDC
	24	//=========================================================================
	25	class WXDLLIMPEXP_CORE wxCocoaDCImpl: public wxDCImpl
	26	{
	27	DECLARE_ABSTRACT_CLASS(wxCocoaDCImpl)
	28	DECLARE_NO_COPY_CLASS(wxCocoaDCImpl)
	29	//-------------------------------------------------------------------------
	30	// Initialization
	31	//-------------------------------------------------------------------------
	32	public:
	33	wxCocoaDCImpl(wxDC *owner);
	34	virtual ~wxCocoaDCImpl();
	35
	36	//-------------------------------------------------------------------------
	37	// wxCocoa specifics
	38	//-------------------------------------------------------------------------
	39	public:
	40	static void CocoaInitializeTextSystem();
	41	static void CocoaShutdownTextSystem();
	42	static WX_NSTextStorage sm_cocoaNSTextStorage;
	43	static WX_NSLayoutManager sm_cocoaNSLayoutManager;
	44	static WX_NSTextContainer sm_cocoaNSTextContainer;
	45	// Create a simple Wx to Bounds transform (just flip the coordinate system)
	46	static WX_NSAffineTransform CocoaGetWxToBoundsTransform(bool isFlipped, float height);
	47	protected:
	48	// DC stack
	49	static wxCocoaDCStack sm_cocoaDCStack;
	50	virtual bool CocoaLockFocus();
	51	virtual bool CocoaUnlockFocus();
	52	bool CocoaUnwindStackAndTakeFocus();
	53	inline bool CocoaTakeFocus()
	54	{
	55	wxCocoaDCStack::compatibility_iterator node = sm_cocoaDCStack.GetFirst();
	56	if(node && (node->GetData() == this))
	57	return true;
	58	return CocoaUnwindStackAndTakeFocus();
	59	}
	60	void CocoaUnwindStackAndLoseFocus();
	61	// DC flipping/transformation
	62	void CocoaApplyTransformations();
	63	void CocoaUnapplyTransformations();
	64	WX_NSAffineTransform m_cocoaWxToBoundsTransform;
	65	// Get bounds rect (for Clear())
	66	// note: we use void * to mean NSRect * so that we can avoid
	67	// putting NSRect in the headers.
	68	virtual bool CocoaGetBounds(void *rectData);
	69	// Blitting
	70	virtual bool CocoaDoBlitOnFocusedDC(wxCoord xdest, wxCoord ydest,
	71	wxCoord width, wxCoord height, wxCoord xsrc, wxCoord ysrc,
	72	int logicalFunc, bool useMask, wxCoord xsrcMask, wxCoord ysrcMask);
	73	//-------------------------------------------------------------------------
	74	// Implementation
	75	//-------------------------------------------------------------------------
	76	public:
	77	// implement base class pure virtuals
	78	// ----------------------------------
	79
	80	virtual void Clear();
	81
	82	virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return true; }
	83	virtual void EndDoc(void) {};
	84
	85	virtual void StartPage(void) {};
	86	virtual void EndPage(void) {};
	87
	88	virtual void SetFont(const wxFont& font);
	89	virtual void SetPen(const wxPen& pen);
	90	virtual void SetBrush(const wxBrush& brush);
	91	virtual void SetBackground(const wxBrush& brush);
	92	virtual void SetBackgroundMode(int mode) { m_backgroundMode = mode; }
	93	virtual void SetPalette(const wxPalette& palette);
	94
	95	virtual void DestroyClippingRegion();
	96
	97	virtual wxCoord GetCharHeight() const;
	98	virtual wxCoord GetCharWidth() const;
	99	virtual void DoGetTextExtent(const wxString& string,
	100	wxCoord x, wxCoord y,
	101	wxCoord *descent = NULL,
	102	wxCoord *externalLeading = NULL,
	103	const wxFont *theFont = NULL) const;
	104
	105	virtual bool CanDrawBitmap() const;
	106	virtual bool CanGetTextExtent() const;
	107	virtual int GetDepth() const;
	108	virtual wxSize GetPPI() const;
	109
	110	virtual void SetMapMode(int mode);
	111	virtual void SetUserScale(double x, double y);
	112
	113	virtual void SetLogicalScale(double x, double y);
	114	virtual void SetLogicalOrigin(wxCoord x, wxCoord y);
	115	virtual void SetDeviceOrigin(wxCoord x, wxCoord y);
	116	virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp);
	117	virtual void SetLogicalFunction(int function);
	118
	119	virtual void SetTextForeground(const wxColour& colour) ;
	120	virtual void SetTextBackground(const wxColour& colour) ;
	121
	122	virtual void ComputeScaleAndOrigin();
	123	protected:
	124	virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
	125	int style = wxFLOOD_SURFACE);
	126
	127	virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const;
	128
	129	virtual void DoDrawPoint(wxCoord x, wxCoord y);
	130	virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2);
	131
	132	virtual void DoDrawArc(wxCoord x1, wxCoord y1,
	133	wxCoord x2, wxCoord y2,
	134	wxCoord xc, wxCoord yc);
	135
	136	virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
	137	double sa, double ea);
	138
	139	virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
	140	virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y,
	141	wxCoord width, wxCoord height,
	142	double radius);
	143	virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
	144
	145	virtual void DoCrossHair(wxCoord x, wxCoord y);
	146
	147	virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y);
	148	virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
	149	bool useMask = false);
	150
	151	virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y);
	152	virtual void DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y,
	153	double angle);
	154
	155	virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
	156	wxDC *source, wxCoord xsrc, wxCoord ysrc,
	157	int rop = wxCOPY, bool useMask = false, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1);
	158
	159	// this is gnarly - we can't even call this function DoSetClippingRegion()
	160	// because of virtual function hiding
	161	virtual void DoSetDeviceClippingRegion(const wxRegion& region);
	162	virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
	163	wxCoord width, wxCoord height);
	164
	165	virtual void DoGetSize(int width, int height) const;
	166	virtual void DoGetSizeMM(int* width, int* height) const;
	167
	168	virtual void DoDrawLines(int n, wxPoint points[],
	169	wxCoord xoffset, wxCoord yoffset);
	170	virtual void DoDrawPolygon(int n, wxPoint points[],
	171	wxCoord xoffset, wxCoord yoffset,
	172	int fillStyle = wxODDEVEN_RULE);
	173	};
	174
	175	#endif // __WX_COCOA_DC_H__