[wxWidgets.git] / include / wx / cocoa / dc.h

/////////////////////////////////////////////////////////////////////////////
// Name:        wx/cocoa/dc.h
// Purpose:     wxDC
// Author:      David Elliott
// Modified by:
// Created:     2003/04/01
// RCS-ID:      $Id$
// Copyright:   (c) 2003 David Elliott
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifndef __WX_COCOA_DC_H__
#define __WX_COCOA_DC_H__

DECLARE_WXCOCOA_OBJC_CLASS(NSAffineTransform);

class WXDLLIMPEXP_FWD_CORE wxDC;
WX_DECLARE_LIST(wxDC, wxCocoaDCStack);

//=========================================================================
// wxDC
//=========================================================================
class WXDLLEXPORT wxDC: public wxDCBase
{
    DECLARE_DYNAMIC_CLASS(wxDC)
    DECLARE_NO_COPY_CLASS(wxDC)
//-------------------------------------------------------------------------
// Initialization
//-------------------------------------------------------------------------
public:
    wxDC();
    virtual ~wxDC();

//-------------------------------------------------------------------------
// wxCocoa specifics
//-------------------------------------------------------------------------
public:
    static void CocoaInitializeTextSystem();
    static void CocoaShutdownTextSystem();
    static WX_NSTextStorage sm_cocoaNSTextStorage;
    static WX_NSLayoutManager sm_cocoaNSLayoutManager;
    static WX_NSTextContainer sm_cocoaNSTextContainer;
    // Create a simple Wx to Bounds transform (just flip the coordinate system)
    static WX_NSAffineTransform CocoaGetWxToBoundsTransform(bool isFlipped, float height);
protected:
// DC stack
    static wxCocoaDCStack sm_cocoaDCStack;
    virtual bool CocoaLockFocus();
    virtual bool CocoaUnlockFocus();
    bool CocoaUnwindStackAndTakeFocus();
    inline bool CocoaTakeFocus()
    {
        wxCocoaDCStack::compatibility_iterator node = sm_cocoaDCStack.GetFirst();
        if(node && (node->GetData() == this))
            return true;
        return CocoaUnwindStackAndTakeFocus();
    }
    void CocoaUnwindStackAndLoseFocus();
// DC flipping/transformation
    void CocoaApplyTransformations();
    void CocoaUnapplyTransformations();
    WX_NSAffineTransform m_cocoaWxToBoundsTransform;
// Get bounds rect (for Clear())
    // note: we use void * to mean NSRect * so that we can avoid
    // putting NSRect in the headers.
    virtual bool CocoaGetBounds(void *rectData);
// Blitting
    virtual bool CocoaDoBlitOnFocusedDC(wxCoord xdest, wxCoord ydest,
        wxCoord width, wxCoord height, wxCoord xsrc, wxCoord ysrc,
        int logicalFunc, bool useMask, wxCoord xsrcMask, wxCoord ysrcMask);
//-------------------------------------------------------------------------
// Implementation
//-------------------------------------------------------------------------
public:
    // implement base class pure virtuals
    // ----------------------------------

    virtual void Clear();

    virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return true; }
    virtual void EndDoc(void) {};

    virtual void StartPage(void) {};
    virtual void EndPage(void) {};

    virtual void SetFont(const wxFont& font);
    virtual void SetPen(const wxPen& pen);
    virtual void SetBrush(const wxBrush& brush);
    virtual void SetBackground(const wxBrush& brush);
    virtual void SetBackgroundMode(int mode) { m_backgroundMode = mode; }
    virtual void SetPalette(const wxPalette& palette);

    virtual void DestroyClippingRegion();

    virtual wxCoord GetCharHeight() const;
    virtual wxCoord GetCharWidth() const;
    virtual void DoGetTextExtent(const wxString& string,
                                 wxCoord *x, wxCoord *y,
                                 wxCoord *descent = NULL,
                                 wxCoord *externalLeading = NULL,
                                 const wxFont *theFont = NULL) const;

    virtual bool CanDrawBitmap() const;
    virtual bool CanGetTextExtent() const;
    virtual int GetDepth() const;
    virtual wxSize GetPPI() const;

    virtual void SetMapMode(int mode);
    virtual void SetUserScale(double x, double y);

    virtual void SetLogicalScale(double x, double y);
    virtual void SetLogicalOrigin(wxCoord x, wxCoord y);
    virtual void SetDeviceOrigin(wxCoord x, wxCoord y);
    virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp);
    virtual void SetLogicalFunction(int function);

    virtual void SetTextForeground(const wxColour& colour) ;
    virtual void SetTextBackground(const wxColour& colour) ;

    virtual void ComputeScaleAndOrigin();
protected:
    virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
                             int style = wxFLOOD_SURFACE);

    virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const;

    virtual void DoDrawPoint(wxCoord x, wxCoord y);
    virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2);

    virtual void DoDrawArc(wxCoord x1, wxCoord y1,
                           wxCoord x2, wxCoord y2,
                           wxCoord xc, wxCoord yc);

    virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
                                   double sa, double ea);

    virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
    virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y,
                                        wxCoord width, wxCoord height,
                                        double radius);
    virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height);

    virtual void DoCrossHair(wxCoord x, wxCoord y);

    virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y);
    virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
                              bool useMask = false);

    virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y);
    virtual void DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y,
                                   double angle);

    virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
                        wxDC *source, wxCoord xsrc, wxCoord ysrc,
                        int rop = wxCOPY, bool useMask = false, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1);

    // this is gnarly - we can't even call this function DoSetClippingRegion()
    // because of virtual function hiding
    virtual void DoSetClippingRegionAsRegion(const wxRegion& region);
    virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
                                     wxCoord width, wxCoord height);

    virtual void DoGetSize(int *width, int *height) const;
    virtual void DoGetSizeMM(int* width, int* height) const;

    virtual void DoDrawLines(int n, wxPoint points[],
                             wxCoord xoffset, wxCoord yoffset);
    virtual void DoDrawPolygon(int n, wxPoint points[],
                               wxCoord xoffset, wxCoord yoffset,
                               int fillStyle = wxODDEVEN_RULE);
};

#endif // __WX_COCOA_DC_H__
Commit	Line	Data
a24aff65	1	/////////////////////////////////////////////////////////////////////////////
6c342f3f DE	2	// Name: wx/cocoa/dc.h
	3	// Purpose: wxDC
	4	// Author: David Elliott
a24aff65	5	// Modified by:
6c342f3f	6	// Created: 2003/04/01
a24aff65	7	// RCS-ID: $Id$
6c342f3f	8	// Copyright: (c) 2003 David Elliott
b1263dcf	9	// Licence: wxWindows licence
a24aff65 DE	10	/////////////////////////////////////////////////////////////////////////////
a24aff65 DE	11
6c342f3f DE	12	#ifndef __WX_COCOA_DC_H__
6c342f3f DE	13	#define __WX_COCOA_DC_H__
a24aff65	14
4db3c8ac DE	15	DECLARE_WXCOCOA_OBJC_CLASS(NSAffineTransform);
4db3c8ac DE	16
b5dbe15d	17	class WXDLLIMPEXP_FWD_CORE wxDC;
fe8f7943 DE	18	WX_DECLARE_LIST(wxDC, wxCocoaDCStack);
fe8f7943 DE	19
6c342f3f DE	20	//=========================================================================
	21	// wxDC
	22	//=========================================================================
a24aff65 DE	23	class WXDLLEXPORT wxDC: public wxDCBase
	24	{
	25	DECLARE_DYNAMIC_CLASS(wxDC)
	26	DECLARE_NO_COPY_CLASS(wxDC)
fe8f7943 DE	27	//-------------------------------------------------------------------------
	28	// Initialization
	29	//-------------------------------------------------------------------------
6c342f3f	30	public:
a24aff65	31	wxDC();
d3c7fc99	32	virtual ~wxDC();
b1263dcf	33
fe8f7943 DE	34	//-------------------------------------------------------------------------
	35	// wxCocoa specifics
	36	//-------------------------------------------------------------------------
	37	public:
6c342f3f DE	38	static void CocoaInitializeTextSystem();
6c342f3f DE	39	static void CocoaShutdownTextSystem();
6c342f3f DE	40	static WX_NSTextStorage sm_cocoaNSTextStorage;
	41	static WX_NSLayoutManager sm_cocoaNSLayoutManager;
	42	static WX_NSTextContainer sm_cocoaNSTextContainer;
4db3c8ac DE	43	// Create a simple Wx to Bounds transform (just flip the coordinate system)
4db3c8ac DE	44	static WX_NSAffineTransform CocoaGetWxToBoundsTransform(bool isFlipped, float height);
fe8f7943 DE	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	{
7ce8248b	53	wxCocoaDCStack::compatibility_iterator node = sm_cocoaDCStack.GetFirst();
fe8f7943 DE	54	if(node && (node->GetData() == this))
	55	return true;
	56	return CocoaUnwindStackAndTakeFocus();
	57	}
	58	void CocoaUnwindStackAndLoseFocus();
	59	// DC flipping/transformation
	60	void CocoaApplyTransformations();
3e21fc05	61	void CocoaUnapplyTransformations();
4db3c8ac	62	WX_NSAffineTransform m_cocoaWxToBoundsTransform;
3e21fc05 DE	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);
2c23fe91 DE	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);
fe8f7943 DE	71	//-------------------------------------------------------------------------
	72	// Implementation
	73	//-------------------------------------------------------------------------
	74	public:
a24aff65 DE	75	// implement base class pure virtuals
	76	// ----------------------------------
	77
	78	virtual void Clear();
	79
b1263dcf	80	virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return true; }
a24aff65	81	virtual void EndDoc(void) {};
b1263dcf	82
a24aff65 DE	83	virtual void StartPage(void) {};
	84	virtual void EndPage(void) {};
	85
e7e97a59	86	virtual void SetFont(const wxFont& font);
a24aff65 DE	87	virtual void SetPen(const wxPen& pen);
	88	virtual void SetBrush(const wxBrush& brush);
	89	virtual void SetBackground(const wxBrush& brush);
ed881889	90	virtual void SetBackgroundMode(int mode) { m_backgroundMode = mode; }
a24aff65 DE	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,
c94f845b	101	const wxFont *theFont = NULL) const;
a24aff65 DE	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
b1263dcf	120	virtual void ComputeScaleAndOrigin();
a24aff65 DE	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);
b1263dcf	133
a24aff65 DE	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,
b1263dcf	147	bool useMask = false);
a24aff65 DE	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,
b1263dcf	155	int rop = wxCOPY, bool useMask = false, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1);
a24aff65 DE	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);
a24aff65 DE	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);
a24aff65 DE	171	};
a24aff65 DE	172
6c342f3f	173	#endif // __WX_COCOA_DC_H__