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1 | /////////////////////////////////////////////////////////////////////////////// |
2 | // Name: wx/dcmirror.h | |
3 | // Purpose: wxMirrorDC class | |
4 | // Author: Vadim Zeitlin | |
5 | // Modified by: | |
6 | // Created: 21.07.2003 | |
7 | // RCS-ID: $Id$ | |
77ffb593 | 8 | // Copyright: (c) 2003 Vadim Zeitlin <vadim@wxwidgets.org> |
65571936 | 9 | // Licence: wxWindows licence |
8f20ea03 VZ |
10 | /////////////////////////////////////////////////////////////////////////////// |
11 | ||
12 | #ifndef _WX_DCMIRROR_H_ | |
13 | #define _WX_DCMIRROR_H_ | |
14 | ||
15 | #include "wx/dc.h" | |
16 | ||
17 | // ---------------------------------------------------------------------------- | |
18 | // wxMirrorDC allows to write the same code for horz/vertical layout | |
19 | // ---------------------------------------------------------------------------- | |
20 | ||
53a2db12 | 21 | class WXDLLIMPEXP_CORE wxMirrorDCImpl : public wxDCImpl |
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22 | { |
23 | public: | |
24 | // constructs a mirror DC associated with the given real DC | |
25 | // | |
26 | // if mirror parameter is true, all vertical and horizontal coordinates are | |
27 | // exchanged, otherwise this class behaves in exactly the same way as a | |
28 | // plain DC | |
f0875501 VZ |
29 | wxMirrorDCImpl(wxDC *owner, wxDCImpl& dc, bool mirror) |
30 | : wxDCImpl(owner), | |
31 | m_dc(dc) | |
32 | { | |
33 | m_mirror = mirror; | |
34 | } | |
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35 | |
36 | // wxDCBase operations | |
37 | virtual void Clear() { m_dc.Clear(); } | |
38 | virtual void SetFont(const wxFont& font) { m_dc.SetFont(font); } | |
39 | virtual void SetPen(const wxPen& pen) { m_dc.SetPen(pen); } | |
40 | virtual void SetBrush(const wxBrush& brush) { m_dc.SetBrush(brush); } | |
41 | virtual void SetBackground(const wxBrush& brush) | |
42 | { m_dc.SetBackground(brush); } | |
43 | virtual void SetBackgroundMode(int mode) { m_dc.SetBackgroundMode(mode); } | |
44 | #if wxUSE_PALETTE | |
45 | virtual void SetPalette(const wxPalette& palette) | |
46 | { m_dc.SetPalette(palette); } | |
47 | #endif // wxUSE_PALETTE | |
48 | virtual void DestroyClippingRegion() { m_dc.DestroyClippingRegion(); } | |
49 | virtual wxCoord GetCharHeight() const { return m_dc.GetCharHeight(); } | |
50 | virtual wxCoord GetCharWidth() const { return m_dc.GetCharWidth(); } | |
51 | virtual bool CanDrawBitmap() const { return m_dc.CanDrawBitmap(); } | |
52 | virtual bool CanGetTextExtent() const { return m_dc.CanGetTextExtent(); } | |
53 | virtual int GetDepth() const { return m_dc.GetDepth(); } | |
54 | virtual wxSize GetPPI() const { return m_dc.GetPPI(); } | |
f0875501 | 55 | virtual bool IsOk() const { return m_dc.IsOk(); } |
89efaf2b | 56 | virtual void SetMapMode(wxMappingMode mode) { m_dc.SetMapMode(mode); } |
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57 | virtual void SetUserScale(double x, double y) |
58 | { m_dc.SetUserScale(GetX(x, y), GetY(x, y)); } | |
59 | virtual void SetLogicalOrigin(wxCoord x, wxCoord y) | |
60 | { m_dc.SetLogicalOrigin(GetX(x, y), GetY(x, y)); } | |
61 | virtual void SetDeviceOrigin(wxCoord x, wxCoord y) | |
62 | { m_dc.SetDeviceOrigin(GetX(x, y), GetY(x, y)); } | |
63 | virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp) | |
64 | { m_dc.SetAxisOrientation(GetX(xLeftRight, yBottomUp), | |
65 | GetY(xLeftRight, yBottomUp)); } | |
89efaf2b | 66 | virtual void SetLogicalFunction(wxRasterOperationMode function) |
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67 | { m_dc.SetLogicalFunction(function); } |
68 | ||
69 | protected: | |
70 | // returns x and y if not mirroring or y and x if mirroring | |
71 | wxCoord GetX(wxCoord x, wxCoord y) const { return m_mirror ? y : x; } | |
72 | wxCoord GetY(wxCoord x, wxCoord y) const { return m_mirror ? x : y; } | |
73 | double GetX(double x, double y) const { return m_mirror ? y : x; } | |
74 | double GetY(double x, double y) const { return m_mirror ? x : y; } | |
75 | bool GetX(bool x, bool y) const { return m_mirror ? y : x; } | |
76 | bool GetY(bool x, bool y) const { return m_mirror ? x : y; } | |
77 | ||
78 | // same thing but for pointers | |
79 | wxCoord *GetX(wxCoord *x, wxCoord *y) const { return m_mirror ? y : x; } | |
80 | wxCoord *GetY(wxCoord *x, wxCoord *y) const { return m_mirror ? x : y; } | |
81 | ||
82 | // exchange x and y unconditionally | |
83 | static void Swap(wxCoord& x, wxCoord& y) | |
84 | { | |
85 | wxCoord t = x; | |
86 | x = y; | |
87 | y = t; | |
88 | } | |
89 | ||
90 | // exchange x and y components of all points in the array if necessary | |
91 | void Mirror(int n, wxPoint points[]) const | |
92 | { | |
93 | if ( m_mirror ) | |
94 | { | |
95 | for ( int i = 0; i < n; i++ ) | |
96 | { | |
97 | Swap(points[i].x, points[i].y); | |
98 | } | |
99 | } | |
100 | } | |
101 | ||
102 | ||
103 | // wxDCBase functions | |
104 | virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col, | |
89efaf2b | 105 | wxFloodFillStyle style = wxFLOOD_SURFACE) |
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106 | { |
107 | return m_dc.DoFloodFill(GetX(x, y), GetY(x, y), col, style); | |
108 | } | |
109 | ||
110 | virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const | |
111 | { | |
112 | return m_dc.DoGetPixel(GetX(x, y), GetY(x, y), col); | |
113 | } | |
114 | ||
115 | ||
116 | virtual void DoDrawPoint(wxCoord x, wxCoord y) | |
117 | { | |
118 | m_dc.DoDrawPoint(GetX(x, y), GetY(x, y)); | |
119 | } | |
120 | ||
121 | virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2) | |
122 | { | |
123 | m_dc.DoDrawLine(GetX(x1, y1), GetY(x1, y1), GetX(x2, y2), GetY(x2, y2)); | |
124 | } | |
125 | ||
126 | virtual void DoDrawArc(wxCoord x1, wxCoord y1, | |
127 | wxCoord x2, wxCoord y2, | |
128 | wxCoord xc, wxCoord yc) | |
129 | { | |
9a83f860 | 130 | wxFAIL_MSG( wxT("this is probably wrong") ); |
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131 | |
132 | m_dc.DoDrawArc(GetX(x1, y1), GetY(x1, y1), | |
68379eaf | 133 | GetX(x2, y2), GetY(x2, y2), |
8f20ea03 VZ |
134 | xc, yc); |
135 | } | |
136 | ||
137 | virtual void DoDrawCheckMark(wxCoord x, wxCoord y, | |
138 | wxCoord w, wxCoord h) | |
139 | { | |
140 | m_dc.DoDrawCheckMark(GetX(x, y), GetY(x, y), | |
141 | GetX(w, h), GetY(w, h)); | |
142 | } | |
143 | ||
144 | virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h, | |
145 | double sa, double ea) | |
146 | { | |
9a83f860 | 147 | wxFAIL_MSG( wxT("this is probably wrong") ); |
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148 | |
149 | m_dc.DoDrawEllipticArc(GetX(x, y), GetY(x, y), | |
68379eaf | 150 | GetX(w, h), GetY(w, h), |
8f20ea03 VZ |
151 | sa, ea); |
152 | } | |
153 | ||
154 | virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord w, wxCoord h) | |
155 | { | |
156 | m_dc.DoDrawRectangle(GetX(x, y), GetY(x, y), GetX(w, h), GetY(w, h)); | |
157 | } | |
158 | ||
159 | virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y, | |
160 | wxCoord w, wxCoord h, | |
161 | double radius) | |
162 | { | |
163 | m_dc.DoDrawRoundedRectangle(GetX(x, y), GetY(x, y), | |
164 | GetX(w, h), GetY(w, h), | |
165 | radius); | |
166 | } | |
167 | ||
168 | virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord w, wxCoord h) | |
169 | { | |
170 | m_dc.DoDrawEllipse(GetX(x, y), GetY(x, y), GetX(w, h), GetY(w, h)); | |
171 | } | |
172 | ||
173 | virtual void DoCrossHair(wxCoord x, wxCoord y) | |
174 | { | |
175 | m_dc.DoCrossHair(GetX(x, y), GetY(x, y)); | |
176 | } | |
177 | ||
178 | virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y) | |
179 | { | |
180 | m_dc.DoDrawIcon(icon, GetX(x, y), GetY(x, y)); | |
181 | } | |
182 | ||
183 | virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y, | |
68379eaf | 184 | bool useMask = false) |
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185 | { |
186 | m_dc.DoDrawBitmap(bmp, GetX(x, y), GetY(x, y), useMask); | |
187 | } | |
188 | ||
189 | virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y) | |
190 | { | |
191 | // this is never mirrored | |
192 | m_dc.DoDrawText(text, x, y); | |
193 | } | |
194 | ||
195 | virtual void DoDrawRotatedText(const wxString& text, | |
196 | wxCoord x, wxCoord y, double angle) | |
197 | { | |
198 | // this is never mirrored | |
199 | m_dc.DoDrawRotatedText(text, x, y, angle); | |
200 | } | |
201 | ||
202 | virtual bool DoBlit(wxCoord xdest, wxCoord ydest, | |
203 | wxCoord w, wxCoord h, | |
204 | wxDC *source, wxCoord xsrc, wxCoord ysrc, | |
03647350 | 205 | wxRasterOperationMode rop = wxCOPY, |
89efaf2b | 206 | bool useMask = false, |
68379eaf | 207 | wxCoord xsrcMask = wxDefaultCoord, wxCoord ysrcMask = wxDefaultCoord) |
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208 | { |
209 | return m_dc.DoBlit(GetX(xdest, ydest), GetY(xdest, ydest), | |
210 | GetX(w, h), GetY(w, h), | |
211 | source, GetX(xsrc, ysrc), GetY(xsrc, ysrc), | |
212 | rop, useMask, | |
213 | GetX(xsrcMask, ysrcMask), GetX(xsrcMask, ysrcMask)); | |
214 | } | |
215 | ||
216 | virtual void DoGetSize(int *w, int *h) const | |
217 | { | |
218 | m_dc.DoGetSize(GetX(w, h), GetY(w, h)); | |
219 | } | |
220 | ||
221 | virtual void DoGetSizeMM(int *w, int *h) const | |
222 | { | |
223 | m_dc.DoGetSizeMM(GetX(w, h), GetY(w, h)); | |
224 | } | |
225 | ||
226 | virtual void DoDrawLines(int n, wxPoint points[], | |
227 | wxCoord xoffset, wxCoord yoffset) | |
228 | { | |
229 | Mirror(n, points); | |
230 | ||
231 | m_dc.DoDrawLines(n, points, | |
232 | GetX(xoffset, yoffset), GetY(xoffset, yoffset)); | |
233 | ||
234 | Mirror(n, points); | |
235 | } | |
236 | ||
237 | virtual void DoDrawPolygon(int n, wxPoint points[], | |
238 | wxCoord xoffset, wxCoord yoffset, | |
89efaf2b | 239 | wxPolygonFillMode fillStyle = wxODDEVEN_RULE) |
8f20ea03 VZ |
240 | { |
241 | Mirror(n, points); | |
242 | ||
243 | m_dc.DoDrawPolygon(n, points, | |
244 | GetX(xoffset, yoffset), GetY(xoffset, yoffset), | |
245 | fillStyle); | |
246 | ||
247 | Mirror(n, points); | |
248 | } | |
249 | ||
fdaad94e | 250 | virtual void DoSetDeviceClippingRegion(const wxRegion& WXUNUSED(region)) |
8f20ea03 | 251 | { |
9a83f860 | 252 | wxFAIL_MSG( wxT("not implemented") ); |
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253 | } |
254 | ||
255 | virtual void DoSetClippingRegion(wxCoord x, wxCoord y, | |
256 | wxCoord w, wxCoord h) | |
257 | { | |
258 | m_dc.DoSetClippingRegion(GetX(x, y), GetY(x, y), GetX(w, h), GetY(w, h)); | |
259 | } | |
260 | ||
261 | virtual void DoGetTextExtent(const wxString& string, | |
262 | wxCoord *x, wxCoord *y, | |
263 | wxCoord *descent = NULL, | |
264 | wxCoord *externalLeading = NULL, | |
c94f845b | 265 | const wxFont *theFont = NULL) const |
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266 | { |
267 | // never mirrored | |
268 | m_dc.DoGetTextExtent(string, x, y, descent, externalLeading, theFont); | |
269 | } | |
270 | ||
271 | private: | |
f0875501 VZ |
272 | wxDCImpl& m_dc; |
273 | ||
274 | bool m_mirror; | |
275 | ||
c0c133e1 | 276 | wxDECLARE_NO_COPY_CLASS(wxMirrorDCImpl); |
f0875501 | 277 | }; |
8f20ea03 | 278 | |
53a2db12 | 279 | class WXDLLIMPEXP_CORE wxMirrorDC : public wxDC |
f0875501 VZ |
280 | { |
281 | public: | |
282 | wxMirrorDC(wxDC& dc, bool mirror) | |
283 | : wxDC(new wxMirrorDCImpl(this, *dc.GetImpl(), mirror)) | |
284 | { | |
285 | m_mirror = mirror; | |
286 | } | |
287 | ||
288 | // helper functions which may be useful for the users of this class | |
289 | wxSize Reflect(const wxSize& sizeOrig) | |
290 | { | |
291 | return m_mirror ? wxSize(sizeOrig.y, sizeOrig.x) : sizeOrig; | |
292 | } | |
293 | ||
294 | private: | |
8f20ea03 | 295 | bool m_mirror; |
fc7a2a60 | 296 | |
c0c133e1 | 297 | wxDECLARE_NO_COPY_CLASS(wxMirrorDC); |
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298 | }; |
299 | ||
300 | #endif // _WX_DCMIRROR_H_ | |
301 |