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Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: wx/dfb/dc.h
	3	// Purpose: wxDC class
	4	// Author: Vaclav Slavik
	5	// Created: 2006-08-07
	6	// RCS-ID: $Id$
	7	// Copyright: (c) 2006 REA Elektronik GmbH
	8	// Licence: wxWindows licence
	9	/////////////////////////////////////////////////////////////////////////////
	10
	11	#ifndef _WX_DFB_DC_H_
	12	#define _WX_DFB_DC_H_
	13
	14	#include "wx/defs.h"
	15	#include "wx/region.h"
	16	#include "wx/dfb/dfbptr.h"
	17
	18	wxDFB_DECLARE_INTERFACE(IDirectFBSurface);
	19
	20	//-----------------------------------------------------------------------------
	21	// wxDC
	22	//-----------------------------------------------------------------------------
	23
	24	class WXDLLIMPEXP_CORE wxDC : public wxDCBase
	25	{
	26	public:
	27	wxDC();
	28
	29	// Ctor.
	30	wxDC(const wxIDirectFBSurfacePtr& surface);
	31
	32	public:
	33	// implement base class pure virtuals
	34	// ----------------------------------
	35
	36	virtual void Clear();
	37
	38	virtual bool StartDoc(const wxString& message);
	39	virtual void EndDoc();
	40
	41	virtual void StartPage();
	42	virtual void EndPage();
	43
	44	virtual void SetFont(const wxFont& font);
	45	virtual void SetPen(const wxPen& pen);
	46	virtual void SetBrush(const wxBrush& brush);
	47	virtual void SetBackground(const wxBrush& brush);
	48	virtual void SetBackgroundMode(int mode);
	49	#if wxUSE_PALETTE
	50	virtual void SetPalette(const wxPalette& palette);
	51	#endif
	52
	53	virtual void SetLogicalFunction(int function);
	54
	55	virtual void DestroyClippingRegion();
	56
	57	virtual wxCoord GetCharHeight() const;
	58	virtual wxCoord GetCharWidth() const;
	59	virtual void DoGetTextExtent(const wxString& string,
	60	wxCoord x, wxCoord y,
	61	wxCoord *descent = NULL,
	62	wxCoord *externalLeading = NULL,
	63	const wxFont *theFont = NULL) const;
	64
	65	virtual bool CanDrawBitmap() const { return true; }
	66	virtual bool CanGetTextExtent() const { return true; }
	67	virtual int GetDepth() const;
	68	virtual wxSize GetPPI() const;
	69
	70	// Returns the surface (and increases its ref count)
	71	wxIDirectFBSurfacePtr GetDirectFBSurface() const { return m_surface; }
	72
	73	protected:
	74	// implementation
	75	wxCoord XDEV2LOG(wxCoord x) const { return DeviceToLogicalX(x); }
	76	wxCoord XDEV2LOGREL(wxCoord x) const { return DeviceToLogicalXRel(x); }
	77	wxCoord YDEV2LOG(wxCoord y) const { return DeviceToLogicalY(y); }
	78	wxCoord YDEV2LOGREL(wxCoord y) const { return DeviceToLogicalYRel(y); }
	79	wxCoord XLOG2DEV(wxCoord x) const { return LogicalToDeviceX(x); }
	80	wxCoord XLOG2DEVREL(wxCoord x) const { return LogicalToDeviceXRel(x); }
	81	wxCoord YLOG2DEV(wxCoord y) const { return LogicalToDeviceY(y); }
	82	wxCoord YLOG2DEVREL(wxCoord y) const { return LogicalToDeviceYRel(y); }
	83
	84	// initializes the DC from a surface, must be called if default ctor
	85	// was used
	86	void DFBInit(const wxIDirectFBSurfacePtr& surface);
	87
	88	virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
	89	int style = wxFLOOD_SURFACE);
	90
	91	virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const;
	92
	93	virtual void DoDrawPoint(wxCoord x, wxCoord y);
	94	virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2);
	95
	96	virtual void DoDrawArc(wxCoord x1, wxCoord y1,
	97	wxCoord x2, wxCoord y2,
	98	wxCoord xc, wxCoord yc);
	99	virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
	100	double sa, double ea);
	101
	102	virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
	103	virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y,
	104	wxCoord width, wxCoord height,
	105	double radius);
	106	virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
	107
	108	virtual void DoCrossHair(wxCoord x, wxCoord y);
	109
	110	virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y);
	111	virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
	112	bool useMask = false);
	113
	114	virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y);
	115	virtual void DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y,
	116	double angle);
	117
	118	virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
	119	wxDC *source, wxCoord xsrc, wxCoord ysrc,
	120	int rop = wxCOPY, bool useMask = false, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1);
	121
	122	// this is gnarly - we can't even call this function DoSetClippingRegion()
	123	// because of virtual function hiding
	124	virtual void DoSetClippingRegionAsRegion(const wxRegion& region);
	125	virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
	126	wxCoord width, wxCoord height);
	127
	128	virtual void DoGetSize(int width, int height) const;
	129	virtual void DoGetSizeMM(int* width, int* height) const;
	130
	131	virtual void DoDrawLines(int n, wxPoint points[],
	132	wxCoord xoffset, wxCoord yoffset);
	133	virtual void DoDrawPolygon(int n, wxPoint points[],
	134	wxCoord xoffset, wxCoord yoffset,
	135	int fillStyle = wxODDEVEN_RULE);
	136
	137	// implementation from now on:
	138	protected:
	139	wxIDirectFBFontPtr GetCurrentFont() const;
	140
	141	private:
	142	// Unified implementation of DrawIcon, DrawBitmap and Blit:
	143	void DoDrawSubBitmap(const wxBitmap &bmp,
	144	wxCoord x, wxCoord y, wxCoord w, wxCoord h,
	145	wxCoord destx, wxCoord desty, int rop, bool useMask);
	146	bool DoBlitFromSurface(const wxIDirectFBSurfacePtr& src,
	147	wxCoord srcx, wxCoord srcy,
	148	wxCoord w, wxCoord h,
	149	wxCoord dstx, wxCoord dsty);
	150
	151	// selects colour into surface's state
	152	void SelectColour(const wxColour& clr);
	153
	154	protected:
	155	wxIDirectFBSurfacePtr m_surface;
	156
	157	double m_mm_to_pix_x, m_mm_to_pix_y;
	158
	159	friend class WXDLLIMPEXP_FWD_CORE wxOverlayImpl; // for Init
	160
	161	DECLARE_DYNAMIC_CLASS(wxDC)
	162	};
	163
	164	#endif // _WX_DFB_DC_H_