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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: wx/dcgraph.h | |
3 | // Purpose: graphics context device bridge header | |
4 | // Author: Stefan Csomor | |
5 | // Modified by: | |
6 | // Created: | |
7 | // Copyright: (c) Stefan Csomor | |
8 | // Licence: wxWindows licence | |
9 | ///////////////////////////////////////////////////////////////////////////// | |
10 | ||
11 | #ifndef _WX_GRAPHICS_DC_H_ | |
12 | #define _WX_GRAPHICS_DC_H_ | |
13 | ||
14 | #if wxUSE_GRAPHICS_CONTEXT | |
15 | ||
16 | #include "wx/dc.h" | |
17 | #include "wx/geometry.h" | |
18 | #include "wx/graphics.h" | |
19 | ||
20 | class WXDLLIMPEXP_FWD_CORE wxWindowDC; | |
21 | ||
22 | ||
23 | class WXDLLIMPEXP_CORE wxGCDC: public wxDC | |
24 | { | |
25 | public: | |
26 | wxGCDC( const wxWindowDC& dc ); | |
27 | wxGCDC( const wxMemoryDC& dc ); | |
28 | #if wxUSE_PRINTING_ARCHITECTURE | |
29 | wxGCDC( const wxPrinterDC& dc ); | |
30 | #endif | |
31 | #if defined(__WXMSW__) && wxUSE_ENH_METAFILE | |
32 | wxGCDC( const wxEnhMetaFileDC& dc ); | |
33 | #endif | |
34 | wxGCDC(wxGraphicsContext* context); | |
35 | ||
36 | wxGCDC(); | |
37 | virtual ~wxGCDC(); | |
38 | ||
39 | wxGraphicsContext* GetGraphicsContext() const; | |
40 | void SetGraphicsContext( wxGraphicsContext* ctx ); | |
41 | ||
42 | #ifdef __WXMSW__ | |
43 | // override wxDC virtual functions to provide access to HDC associated with | |
44 | // this Graphics object (implemented in src/msw/graphics.cpp) | |
45 | virtual WXHDC AcquireHDC(); | |
46 | virtual void ReleaseHDC(WXHDC hdc); | |
47 | #endif // __WXMSW__ | |
48 | ||
49 | private: | |
50 | DECLARE_DYNAMIC_CLASS(wxGCDC) | |
51 | wxDECLARE_NO_COPY_CLASS(wxGCDC); | |
52 | }; | |
53 | ||
54 | ||
55 | class WXDLLIMPEXP_CORE wxGCDCImpl: public wxDCImpl | |
56 | { | |
57 | public: | |
58 | wxGCDCImpl( wxDC *owner, const wxWindowDC& dc ); | |
59 | wxGCDCImpl( wxDC *owner, const wxMemoryDC& dc ); | |
60 | #if wxUSE_PRINTING_ARCHITECTURE | |
61 | wxGCDCImpl( wxDC *owner, const wxPrinterDC& dc ); | |
62 | #endif | |
63 | #if defined(__WXMSW__) && wxUSE_ENH_METAFILE | |
64 | wxGCDCImpl( wxDC *owner, const wxEnhMetaFileDC& dc ); | |
65 | #endif | |
66 | wxGCDCImpl( wxDC *owner ); | |
67 | ||
68 | virtual ~wxGCDCImpl(); | |
69 | ||
70 | // implement base class pure virtuals | |
71 | // ---------------------------------- | |
72 | ||
73 | virtual void Clear(); | |
74 | ||
75 | virtual bool StartDoc( const wxString& message ); | |
76 | virtual void EndDoc(); | |
77 | ||
78 | virtual void StartPage(); | |
79 | virtual void EndPage(); | |
80 | ||
81 | // flushing the content of this dc immediately onto screen | |
82 | virtual void Flush(); | |
83 | ||
84 | virtual void SetFont(const wxFont& font); | |
85 | virtual void SetPen(const wxPen& pen); | |
86 | virtual void SetBrush(const wxBrush& brush); | |
87 | virtual void SetBackground(const wxBrush& brush); | |
88 | virtual void SetBackgroundMode(int mode); | |
89 | virtual void SetPalette(const wxPalette& palette); | |
90 | ||
91 | virtual void DestroyClippingRegion(); | |
92 | ||
93 | virtual wxCoord GetCharHeight() const; | |
94 | virtual wxCoord GetCharWidth() const; | |
95 | ||
96 | virtual bool CanDrawBitmap() const; | |
97 | virtual bool CanGetTextExtent() const; | |
98 | virtual int GetDepth() const; | |
99 | virtual wxSize GetPPI() const; | |
100 | ||
101 | virtual void SetLogicalFunction(wxRasterOperationMode function); | |
102 | ||
103 | virtual void SetTextForeground(const wxColour& colour); | |
104 | virtual void SetTextBackground(const wxColour& colour); | |
105 | ||
106 | virtual void ComputeScaleAndOrigin(); | |
107 | ||
108 | wxGraphicsContext* GetGraphicsContext() const { return m_graphicContext; } | |
109 | virtual void SetGraphicsContext( wxGraphicsContext* ctx ); | |
110 | ||
111 | virtual void* GetHandle() const; | |
112 | ||
113 | // the true implementations | |
114 | virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col, | |
115 | wxFloodFillStyle style = wxFLOOD_SURFACE); | |
116 | ||
117 | virtual void DoGradientFillLinear(const wxRect& rect, | |
118 | const wxColour& initialColour, | |
119 | const wxColour& destColour, | |
120 | wxDirection nDirection = wxEAST); | |
121 | ||
122 | virtual void DoGradientFillConcentric(const wxRect& rect, | |
123 | const wxColour& initialColour, | |
124 | const wxColour& destColour, | |
125 | const wxPoint& circleCenter); | |
126 | ||
127 | virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const; | |
128 | ||
129 | virtual void DoDrawPoint(wxCoord x, wxCoord y); | |
130 | ||
131 | #if wxUSE_SPLINES | |
132 | virtual void DoDrawSpline(const wxPointList *points); | |
133 | #endif | |
134 | ||
135 | virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2); | |
136 | ||
137 | virtual void DoDrawArc(wxCoord x1, wxCoord y1, | |
138 | wxCoord x2, wxCoord y2, | |
139 | wxCoord xc, wxCoord yc); | |
140 | ||
141 | virtual void DoDrawCheckMark(wxCoord x, wxCoord y, | |
142 | wxCoord width, wxCoord height); | |
143 | ||
144 | virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h, | |
145 | double sa, double ea); | |
146 | ||
147 | virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height); | |
148 | virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y, | |
149 | wxCoord width, wxCoord height, | |
150 | double radius); | |
151 | virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height); | |
152 | ||
153 | virtual void DoCrossHair(wxCoord x, wxCoord y); | |
154 | ||
155 | virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y); | |
156 | virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y, | |
157 | bool useMask = false); | |
158 | ||
159 | virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y); | |
160 | virtual void DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y, | |
161 | double angle); | |
162 | ||
163 | virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height, | |
164 | wxDC *source, wxCoord xsrc, wxCoord ysrc, | |
165 | wxRasterOperationMode rop = wxCOPY, bool useMask = false, | |
166 | wxCoord xsrcMask = -1, wxCoord ysrcMask = -1); | |
167 | ||
168 | virtual bool DoStretchBlit(wxCoord xdest, wxCoord ydest, | |
169 | wxCoord dstWidth, wxCoord dstHeight, | |
170 | wxDC *source, | |
171 | wxCoord xsrc, wxCoord ysrc, | |
172 | wxCoord srcWidth, wxCoord srcHeight, | |
173 | wxRasterOperationMode = wxCOPY, bool useMask = false, | |
174 | wxCoord xsrcMask = wxDefaultCoord, wxCoord ysrcMask = wxDefaultCoord); | |
175 | ||
176 | virtual void DoGetSize(int *,int *) const; | |
177 | virtual void DoGetSizeMM(int* width, int* height) const; | |
178 | ||
179 | virtual void DoDrawLines(int n, const wxPoint points[], | |
180 | wxCoord xoffset, wxCoord yoffset); | |
181 | virtual void DoDrawPolygon(int n, const wxPoint points[], | |
182 | wxCoord xoffset, wxCoord yoffset, | |
183 | wxPolygonFillMode fillStyle = wxODDEVEN_RULE); | |
184 | virtual void DoDrawPolyPolygon(int n, const int count[], const wxPoint points[], | |
185 | wxCoord xoffset, wxCoord yoffset, | |
186 | wxPolygonFillMode fillStyle); | |
187 | ||
188 | virtual void DoSetDeviceClippingRegion(const wxRegion& region); | |
189 | virtual void DoSetClippingRegion(wxCoord x, wxCoord y, | |
190 | wxCoord width, wxCoord height); | |
191 | ||
192 | virtual void DoGetTextExtent(const wxString& string, | |
193 | wxCoord *x, wxCoord *y, | |
194 | wxCoord *descent = NULL, | |
195 | wxCoord *externalLeading = NULL, | |
196 | const wxFont *theFont = NULL) const; | |
197 | ||
198 | virtual bool DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const; | |
199 | ||
200 | #ifdef __WXMSW__ | |
201 | virtual wxRect MSWApplyGDIPlusTransform(const wxRect& r) const; | |
202 | #endif // __WXMSW__ | |
203 | ||
204 | protected: | |
205 | // unused int parameter distinguishes this version, which does not create a | |
206 | // wxGraphicsContext, in the expectation that the derived class will do it | |
207 | wxGCDCImpl(wxDC* owner, int); | |
208 | ||
209 | // scaling variables | |
210 | bool m_logicalFunctionSupported; | |
211 | wxGraphicsMatrix m_matrixOriginal; | |
212 | wxGraphicsMatrix m_matrixCurrent; | |
213 | ||
214 | double m_formerScaleX, m_formerScaleY; | |
215 | ||
216 | wxGraphicsContext* m_graphicContext; | |
217 | ||
218 | private: | |
219 | void Init(wxGraphicsContext*); | |
220 | ||
221 | DECLARE_CLASS(wxGCDCImpl) | |
222 | wxDECLARE_NO_COPY_CLASS(wxGCDCImpl); | |
223 | }; | |
224 | ||
225 | #endif // wxUSE_GRAPHICS_CONTEXT | |
226 | #endif // _WX_GRAPHICS_DC_H_ |