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1/////////////////////////////////////////////////////////////////////////////
2// Name: dc.h
3// Purpose: wxDC class
4// Author: Stefan Csomor
5// Modified by:
6// Created: 1998-01-01
7// RCS-ID: $Id$
8// Copyright: (c) Stefan Csomor
65571936 9// Licence: wxWindows licence
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10/////////////////////////////////////////////////////////////////////////////
11
12#ifndef _WX_DC_H_
13#define _WX_DC_H_
14
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15#include "wx/pen.h"
16#include "wx/brush.h"
17#include "wx/icon.h"
18#include "wx/font.h"
19#include "wx/gdicmn.h"
20
21//-----------------------------------------------------------------------------
22// constants
23//-----------------------------------------------------------------------------
24
25#ifndef MM_TEXT
26#define MM_TEXT 0
27#define MM_ISOTROPIC 1
28#define MM_ANISOTROPIC 2
29#define MM_LOMETRIC 3
30#define MM_HIMETRIC 4
31#define MM_TWIPS 5
32#define MM_POINTS 6
33#define MM_METRIC 7
34#endif
35
8cf73271 36
f2b8291a 37class wxMacPortStateHelper;
20b69855 38
8acd14d1 39#if !wxUSE_GRAPHICS_CONTEXT
24a7b718 40
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41class WXDLLEXPORT wxGraphicPath
42{
43public :
f2b8291a 44 virtual ~wxGraphicPath() {}
e828c96a 45
f2b8291a 46 virtual void MoveToPoint( wxCoord x1, wxCoord y1 ) = 0;
20b69855 47
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48 virtual void AddLineToPoint( wxCoord x1, wxCoord y1 ) = 0;
49
50 virtual void AddQuadCurveToPoint( wxCoord cx1, wxCoord cy1, wxCoord x1, wxCoord y1 ) = 0;
51
52 virtual void AddRectangle( wxCoord x, wxCoord y, wxCoord w, wxCoord h ) = 0;
4bef5a72 53
f2b8291a 54 virtual void AddCircle( wxCoord x, wxCoord y, wxCoord r ) = 0;
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55
56 // draws a an arc to two tangents connecting (current) to (x1,y1) and (x1,y1) to (x2,y2), also a straight line from (current) to (x1,y1)
e34fb6ea 57 virtual void AddArcToPoint( wxCoord x1, wxCoord y1 , wxCoord x2, wxCoord y2, wxCoord r ) = 0 ;
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58
59 virtual void AddArc( wxCoord x, wxCoord y, wxCoord r, double startAngle, double endAngle, bool clockwise ) = 0 ;
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60
61 virtual void CloseSubpath() = 0;
62};
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63
64class WXDLLEXPORT wxGraphicContext
65{
66public:
67 virtual ~wxGraphicContext() {}
68
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69 virtual wxGraphicPath * CreatePath() = 0;
70
71 virtual void PushState() = 0 ;
72
73 virtual void PopState() = 0 ;
74
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75 virtual void Clip( const wxRegion &region ) = 0;
76
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77 virtual void SetPen( const wxPen &pen ) = 0;
78
79 virtual void SetBrush( const wxBrush &brush ) = 0;
80
81 virtual void SetFont( const wxFont &font ) = 0 ;
82
83 virtual void SetTextColor( const wxColour &col ) = 0 ;
84
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85 virtual void StrokePath( const wxGraphicPath *path ) = 0;
86
87 virtual void DrawPath( const wxGraphicPath *path, int fillStyle = wxWINDING_RULE ) = 0;
88
89 virtual void FillPath( const wxGraphicPath *path, const wxColor &fillColor, int fillStyle = wxWINDING_RULE ) = 0;
90
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91 virtual void DrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, wxCoord w, wxCoord h ) = 0 ;
92
93 virtual void DrawIcon( const wxIcon &icon, wxCoord x, wxCoord y, wxCoord w, wxCoord h ) = 0 ;
94
95 virtual void DrawText( const wxString &str, wxCoord x, wxCoord y, double angle ) = 0 ;
96
97 virtual void GetTextExtent( const wxString &text, wxCoord *width, wxCoord *height,
98 wxCoord *descent, wxCoord *externalLeading ) const = 0 ;
99
100 virtual void GetPartialTextExtents(const wxString& text, wxArrayInt& widths) const = 0 ;
101
102 virtual void Translate( wxCoord dx , wxCoord dy ) = 0 ;
103
104 virtual void Scale( wxCoord xScale , wxCoord yScale ) = 0 ;
f2b8291a 105};
20b69855 106
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107class WXDLLEXPORT wxDC: public wxDCBase
108{
109 DECLARE_DYNAMIC_CLASS(wxDC)
110 DECLARE_NO_COPY_CLASS(wxDC)
111
ba4afb6b 112public:
8cf73271 113 wxDC();
d3c7fc99 114 virtual ~wxDC();
c5789d15 115
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116 // implement base class pure virtuals
117 // ----------------------------------
118
119 virtual void Clear();
120
b1263dcf 121 virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return true; }
f2b8291a 122 virtual void EndDoc(void) {}
c5789d15 123
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124 virtual void StartPage(void) {}
125 virtual void EndPage(void) {}
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126
127 virtual void SetFont(const wxFont& font);
128 virtual void SetPen(const wxPen& pen);
129 virtual void SetBrush(const wxBrush& brush);
130 virtual void SetBackground(const wxBrush& brush);
131 virtual void SetBackgroundMode(int mode);
132 virtual void SetPalette(const wxPalette& palette);
133
134 virtual void DestroyClippingRegion();
135
136 virtual wxCoord GetCharHeight() const;
137 virtual wxCoord GetCharWidth() const;
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138
139 virtual bool CanDrawBitmap() const;
140 virtual bool CanGetTextExtent() const;
141 virtual int GetDepth() const;
142 virtual wxSize GetPPI() const;
143
144 virtual void SetMapMode(int mode);
145 virtual void SetUserScale(double x, double y);
146
147 virtual void SetLogicalScale(double x, double y);
148 virtual void SetLogicalOrigin(wxCoord x, wxCoord y);
149 virtual void SetDeviceOrigin(wxCoord x, wxCoord y);
150 virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp);
151 virtual void SetLogicalFunction(int function);
152
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153 virtual void SetTextForeground(const wxColour& colour);
154 virtual void SetTextBackground(const wxColour& colour);
8cf73271 155
b1263dcf 156 virtual void ComputeScaleAndOrigin();
c5789d15 157
ba4afb6b 158public:
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159 wxCoord XDEV2LOG(wxCoord x) const
160 {
0e1ea396 161 return wxRound((double)(x - m_deviceOriginX) / m_scaleX) * m_signX + m_logicalOriginX;
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162 }
163 wxCoord XDEV2LOGREL(wxCoord x) const
c5789d15 164 {
0e1ea396 165 return wxRound((double)(x) / m_scaleX);
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166 }
167 wxCoord YDEV2LOG(wxCoord y) const
168 {
0e1ea396 169 return wxRound((double)(y - m_deviceOriginY) / m_scaleY) * m_signY + m_logicalOriginY;
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170 }
171 wxCoord YDEV2LOGREL(wxCoord y) const
c5789d15 172 {
0e1ea396 173 return wxRound((double)(y) / m_scaleY);
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174 }
175 wxCoord XLOG2DEV(wxCoord x) const
c5789d15 176 {
0e1ea396 177 return wxRound((double)(x - m_logicalOriginX) * m_scaleX) * m_signX + m_deviceOriginX;
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178 }
179 wxCoord XLOG2DEVREL(wxCoord x) const
c5789d15 180 {
0e1ea396 181 return wxRound((double)(x) * m_scaleX);
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182 }
183 wxCoord YLOG2DEV(wxCoord y) const
184 {
0e1ea396 185 return wxRound((double)(y - m_logicalOriginY) * m_scaleY) * m_signY + m_deviceOriginY;
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186 }
187 wxCoord YLOG2DEVREL(wxCoord y) const
c5789d15 188 {
0e1ea396 189 return wxRound((double)(y) * m_scaleY);
8cf73271 190 }
ba4afb6b 191
8cf73271 192 wxCoord XLOG2DEVMAC(wxCoord x) const
c5789d15 193 {
0e1ea396 194 return wxRound((double)(x - m_logicalOriginX) * m_scaleX) * m_signX + m_deviceOriginX + m_macLocalOrigin.x;
8cf73271 195 }
ba4afb6b 196
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197 wxCoord YLOG2DEVMAC(wxCoord y) const
198 {
0e1ea396 199 return wxRound((double)(y - m_logicalOriginY) * m_scaleY) * m_signY + m_deviceOriginY + m_macLocalOrigin.y;
8cf73271 200 }
ba4afb6b 201
71cc158e 202#if wxMAC_USE_CORE_GRAPHICS
fd8bb466 203 wxGraphicsContext* GetGraphicsContext() { return m_graphicContext; }
71cc158e 204#else
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205 WXHRGN MacGetCurrentClipRgn() { return m_macCurrentClipRgn; }
206 static void MacSetupBackgroundForCurrentPort(const wxBrush& background );
20b69855 207#endif
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208
209protected:
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210 virtual void DoGetTextExtent(const wxString& string,
211 wxCoord *x, wxCoord *y,
212 wxCoord *descent = NULL,
213 wxCoord *externalLeading = NULL,
214 wxFont *theFont = NULL) const;
f2b8291a 215
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216 virtual bool DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const;
217
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218 virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
219 int style = wxFLOOD_SURFACE);
220
221 virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const;
222
223 virtual void DoDrawPoint(wxCoord x, wxCoord y);
f2b8291a 224
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225#if wxMAC_USE_CORE_GRAPHICS && wxUSE_SPLINES
226 virtual void DoDrawSpline(wxList *points);
227#endif
f2b8291a 228
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229 virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2);
230
231 virtual void DoDrawArc(wxCoord x1, wxCoord y1,
232 wxCoord x2, wxCoord y2,
233 wxCoord xc, wxCoord yc);
c5789d15 234
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235 virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
236 double sa, double ea);
237
238 virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
239 virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y,
240 wxCoord width, wxCoord height,
241 double radius);
242 virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
243
244 virtual void DoCrossHair(wxCoord x, wxCoord y);
245
246 virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y);
247 virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
b1263dcf 248 bool useMask = false);
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249
250 virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y);
251 virtual void DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y,
252 double angle);
253
254 virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
255 wxDC *source, wxCoord xsrc, wxCoord ysrc,
b1263dcf 256 int rop = wxCOPY, bool useMask = false, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1);
8cf73271 257
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258 virtual bool DoStretchBlit(wxCoord xdest, wxCoord ydest,
259 wxCoord dstWidth, wxCoord dstHeight,
260 wxDC *source,
261 wxCoord xsrc, wxCoord ysrc,
262 wxCoord srcWidth, wxCoord srcHeight,
263 int rop = wxCOPY, bool useMask = false,
264 wxCoord xsrcMask = wxDefaultCoord, wxCoord ysrcMask = wxDefaultCoord);
265
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266 // this is gnarly - we can't even call this function DoSetClippingRegion()
267 // because of virtual function hiding
f2b8291a 268
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269 virtual void DoSetClippingRegionAsRegion(const wxRegion& region);
270 virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
271 wxCoord width, wxCoord height);
8cf73271 272
f2b8291a 273 virtual void DoGetSizeMM(int *width, int *height) const;
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274
275 virtual void DoDrawLines(int n, wxPoint points[],
276 wxCoord xoffset, wxCoord yoffset);
277 virtual void DoDrawPolygon(int n, wxPoint points[],
278 wxCoord xoffset, wxCoord yoffset,
279 int fillStyle = wxODDEVEN_RULE);
280
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281protected:
282 // scaling variables
283 double m_mm_to_pix_x, m_mm_to_pix_y;
284
285 // To be set using SetDeviceOrigin()
286 // by external classes such as wxScrolledWindow
287 long m_externalDeviceOriginX, m_externalDeviceOriginY;
288
377a6b3e 289#if !wxMAC_USE_CORE_GRAPHICS
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290 // If un-scrolled is non-zero or d.o. changes with scrolling.
291 // Set using SetInternalDeviceOrigin().
ba4afb6b 292 long m_internalDeviceOriginX, m_internalDeviceOriginY;
c5789d15 293
f2b8291a 294 WXHBITMAP m_macMask;
20b69855 295#endif
8cf73271 296
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297 // not yet used
298 bool m_needComputeScaleX, m_needComputeScaleY;
8cf73271 299
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300public:
301 // implementation
f2b8291a 302 void MacInstallFont() const;
20b69855 303
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304 // in order to preserve the const inheritance of the virtual functions,
305 // we have to use mutable variables starting from CWPro 5
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306 wxPoint m_macLocalOrigin;
307 mutable void *m_macATSUIStyle;
8cf73271 308
f2b8291a 309 WXHDC m_macPort;
ba4afb6b 310
20b69855 311#if wxMAC_USE_CORE_GRAPHICS
fd8bb466 312 wxGraphicsContext *m_graphicContext;
20b69855 313#else
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314 void MacInstallPen() const;
315 void MacInstallBrush() const;
316
317 void MacSetupPort( wxMacPortStateHelper *ph ) const;
318 void MacCleanupPort( wxMacPortStateHelper *ph ) const;
319
320 mutable wxMacPortStateHelper *m_macCurrentPortStateHelper;
321
322 mutable bool m_macFontInstalled;
323 mutable bool m_macPenInstalled;
324 mutable bool m_macBrushInstalled;
325
326 WXHRGN m_macBoundaryClipRgn;
327 WXHRGN m_macCurrentClipRgn;
328 mutable bool m_macFormerAliasState;
329 mutable short m_macFormerAliasSize;
330 mutable bool m_macAliasWasEnabled;
331 mutable void *m_macForegroundPixMap;
332 mutable void *m_macBackgroundPixMap;
20b69855 333#endif
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334};
335
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336#endif
337
ba4afb6b 338#endif // _WX_DC_H_