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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
36//-----------------------------------------------------------------------------
37// global variables
38//-----------------------------------------------------------------------------
39
40extern int wxPageNumber;
41
42class wxMacPortStateHelper ;
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43
44class WXDLLEXPORT wxGraphicPath
45{
46public :
47 virtual ~wxGraphicPath() {}
48
49 virtual void MoveToPoint( wxCoord x1 , wxCoord y1 ) = 0 ;
50
51 virtual void AddLineToPoint( wxCoord x1 , wxCoord y1 ) = 0 ;
52
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53 virtual void AddQuadCurveToPoint( wxCoord cx1, wxCoord cy1, wxCoord x1, wxCoord y1 ) = 0 ;
54
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55 virtual void AddRectangle( wxCoord x, wxCoord y, wxCoord w, wxCoord h ) = 0 ;
56
57 virtual void AddCircle( wxCoord x, wxCoord y , wxCoord r ) = 0 ;
58
59 virtual void CloseSubpath() = 0 ;
60} ;
61
62class WXDLLEXPORT wxGraphicContext
63{
64public:
65 virtual ~wxGraphicContext() {}
66
67 virtual void Clip( const wxRegion &region ) = 0 ;
68
69 virtual void StrokePath( const wxGraphicPath *path ) = 0 ;
70
71 virtual void DrawPath( const wxGraphicPath *path , int fillStyle = wxWINDING_RULE ) = 0 ;
72
73 virtual void FillPath( const wxGraphicPath *path , const wxColor &fillColor , int fillStyle = wxWINDING_RULE ) = 0 ;
74
75 virtual void SetPen( const wxPen &pen ) = 0 ;
76
77 virtual void SetBrush( const wxBrush &brush ) = 0 ;
78
79 virtual wxGraphicPath* CreatePath() = 0 ;
80} ;
81
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82//-----------------------------------------------------------------------------
83// wxDC
84//-----------------------------------------------------------------------------
85
86class WXDLLEXPORT wxDC: public wxDCBase
87{
88 DECLARE_DYNAMIC_CLASS(wxDC)
89 DECLARE_NO_COPY_CLASS(wxDC)
90
91 public:
92
93 wxDC();
94 ~wxDC();
c5789d15 95
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96
97 // implement base class pure virtuals
98 // ----------------------------------
99
100 virtual void Clear();
101
b1263dcf 102 virtual bool StartDoc( const wxString& WXUNUSED(message) ) { return true; }
8cf73271 103 virtual void EndDoc(void) {};
c5789d15 104
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105 virtual void StartPage(void) {};
106 virtual void EndPage(void) {};
107
108 virtual void SetFont(const wxFont& font);
109 virtual void SetPen(const wxPen& pen);
110 virtual void SetBrush(const wxBrush& brush);
111 virtual void SetBackground(const wxBrush& brush);
112 virtual void SetBackgroundMode(int mode);
113 virtual void SetPalette(const wxPalette& palette);
114
115 virtual void DestroyClippingRegion();
116
117 virtual wxCoord GetCharHeight() const;
118 virtual wxCoord GetCharWidth() const;
119 virtual void DoGetTextExtent(const wxString& string,
120 wxCoord *x, wxCoord *y,
121 wxCoord *descent = NULL,
122 wxCoord *externalLeading = NULL,
123 wxFont *theFont = NULL) const;
124 virtual bool DoGetPartialTextExtents(const wxString& text, wxArrayInt& widths) const;
125
126 virtual bool CanDrawBitmap() const;
127 virtual bool CanGetTextExtent() const;
128 virtual int GetDepth() const;
129 virtual wxSize GetPPI() const;
130
131 virtual void SetMapMode(int mode);
132 virtual void SetUserScale(double x, double y);
133
134 virtual void SetLogicalScale(double x, double y);
135 virtual void SetLogicalOrigin(wxCoord x, wxCoord y);
136 virtual void SetDeviceOrigin(wxCoord x, wxCoord y);
137 virtual void SetAxisOrientation(bool xLeftRight, bool yBottomUp);
138 virtual void SetLogicalFunction(int function);
139
140 virtual void SetTextForeground(const wxColour& colour) ;
141 virtual void SetTextBackground(const wxColour& colour) ;
142
b1263dcf 143 virtual void ComputeScaleAndOrigin();
c5789d15 144
b1263dcf 145 public:
c5789d15 146
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147 wxCoord XDEV2LOG(wxCoord x) const
148 {
149 long new_x = x - m_deviceOriginX ;
150 if (new_x > 0)
151 return (wxCoord)((double)(new_x) / m_scaleX + 0.5) * m_signX + m_logicalOriginX;
152 else
153 return (wxCoord)((double)(new_x) / m_scaleX - 0.5) * m_signX + m_logicalOriginX;
154 }
155 wxCoord XDEV2LOGREL(wxCoord x) const
c5789d15 156 {
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157 if (x > 0)
158 return (wxCoord)((double)(x) / m_scaleX + 0.5);
159 else
160 return (wxCoord)((double)(x) / m_scaleX - 0.5);
161 }
162 wxCoord YDEV2LOG(wxCoord y) const
163 {
164 long new_y = y - m_deviceOriginY ;
165 if (new_y > 0)
166 return (wxCoord)((double)(new_y) / m_scaleY + 0.5) * m_signY + m_logicalOriginY;
167 else
168 return (wxCoord)((double)(new_y) / m_scaleY - 0.5) * m_signY + m_logicalOriginY;
169 }
170 wxCoord YDEV2LOGREL(wxCoord y) const
c5789d15 171 {
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172 if (y > 0)
173 return (wxCoord)((double)(y) / m_scaleY + 0.5);
174 else
175 return (wxCoord)((double)(y) / m_scaleY - 0.5);
176 }
177 wxCoord XLOG2DEV(wxCoord x) const
c5789d15 178 {
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179 long new_x = x - m_logicalOriginX;
180 if (new_x > 0)
181 return (wxCoord)((double)(new_x) * m_scaleX + 0.5) * m_signX + m_deviceOriginX ;
182 else
183 return (wxCoord)((double)(new_x) * m_scaleX - 0.5) * m_signX + m_deviceOriginX ;
184 }
185 wxCoord XLOG2DEVREL(wxCoord x) const
c5789d15 186 {
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187 if (x > 0)
188 return (wxCoord)((double)(x) * m_scaleX + 0.5);
189 else
190 return (wxCoord)((double)(x) * m_scaleX - 0.5);
191 }
192 wxCoord YLOG2DEV(wxCoord y) const
193 {
194 long new_y = y - m_logicalOriginY ;
195 if (new_y > 0)
196 return (wxCoord)((double)(new_y) * m_scaleY + 0.5) * m_signY + m_deviceOriginY ;
197 else
198 return (wxCoord)((double)(new_y) * m_scaleY - 0.5) * m_signY + m_deviceOriginY ;
199 }
200 wxCoord YLOG2DEVREL(wxCoord y) const
c5789d15 201 {
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202 if (y > 0)
203 return (wxCoord)((double)(y) * m_scaleY + 0.5);
204 else
205 return (wxCoord)((double)(y) * m_scaleY - 0.5);
206 }
207 wxCoord XLOG2DEVMAC(wxCoord x) const
c5789d15 208 {
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209 long new_x = x - m_logicalOriginX;
210 if (new_x > 0)
211 return (wxCoord)((double)(new_x) * m_scaleX + 0.5) * m_signX + m_deviceOriginX + m_macLocalOrigin.x ;
212 else
213 return (wxCoord)((double)(new_x) * m_scaleX - 0.5) * m_signX + m_deviceOriginX + m_macLocalOrigin.x ;
214 }
215 wxCoord YLOG2DEVMAC(wxCoord y) const
216 {
217 long new_y = y - m_logicalOriginY ;
218 if (new_y > 0)
219 return (wxCoord)((double)(new_y) * m_scaleY + 0.5) * m_signY + m_deviceOriginY + m_macLocalOrigin.y ;
220 else
221 return (wxCoord)((double)(new_y) * m_scaleY - 0.5) * m_signY + m_deviceOriginY + m_macLocalOrigin.y ;
222 }
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223#if wxMAC_USE_CORE_GRAPHICS
224 wxGraphicContext* GetGraphicContext() { return m_graphicContext ; }
225#else
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226 WXHRGN MacGetCurrentClipRgn() { return m_macCurrentClipRgn ; }
227 static void MacSetupBackgroundForCurrentPort(const wxBrush& background ) ;
20b69855 228#endif
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229//
230
231protected:
232 virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
233 int style = wxFLOOD_SURFACE);
234
235 virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const;
236
237 virtual void DoDrawPoint(wxCoord x, wxCoord y);
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238#if wxMAC_USE_CORE_GRAPHICS && wxUSE_SPLINES
239 virtual void DoDrawSpline(wxList *points);
240#endif
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241 virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2);
242
243 virtual void DoDrawArc(wxCoord x1, wxCoord y1,
244 wxCoord x2, wxCoord y2,
245 wxCoord xc, wxCoord yc);
c5789d15 246
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247 virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
248 double sa, double ea);
249
250 virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
251 virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y,
252 wxCoord width, wxCoord height,
253 double radius);
254 virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
255
256 virtual void DoCrossHair(wxCoord x, wxCoord y);
257
258 virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y);
259 virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
b1263dcf 260 bool useMask = false);
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261
262 virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y);
263 virtual void DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y,
264 double angle);
265
266 virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
267 wxDC *source, wxCoord xsrc, wxCoord ysrc,
b1263dcf 268 int rop = wxCOPY, bool useMask = false, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1);
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269
270 // this is gnarly - we can't even call this function DoSetClippingRegion()
271 // because of virtual function hiding
272 virtual void DoSetClippingRegionAsRegion(const wxRegion& region);
273 virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
274 wxCoord width, wxCoord height);
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275
276 virtual void DoGetSizeMM(int* width, int* height) const;
277
278 virtual void DoDrawLines(int n, wxPoint points[],
279 wxCoord xoffset, wxCoord yoffset);
280 virtual void DoDrawPolygon(int n, wxPoint points[],
281 wxCoord xoffset, wxCoord yoffset,
282 int fillStyle = wxODDEVEN_RULE);
283
284 protected:
285 //begin wxmac
286 // Variables used for scaling
c5789d15 287 double m_mm_to_pix_x,m_mm_to_pix_y;
8cf73271 288 // not yet used
c5789d15 289 bool m_needComputeScaleX,m_needComputeScaleY;
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290 // If un-scrolled is non-zero or d.o. changes with scrolling.
291 // Set using SetInternalDeviceOrigin().
292 long m_internalDeviceOriginX,m_internalDeviceOriginY;
293 // To be set by external classes such as wxScrolledWindow
294 // using SetDeviceOrigin()
295 long m_externalDeviceOriginX,m_externalDeviceOriginY;
c5789d15 296
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297 // Begin implementation for Mac
298 public:
c5789d15 299
20b69855 300#if !wxMAC_USE_CORE_GRAPHICS
8cf73271 301 WXHBITMAP m_macMask ;
20b69855 302#endif
8cf73271 303
c5789d15 304 // in order to preserve the const inheritance of the virtual functions, we have to
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305 // use mutable variables starting from CWPro 5
306
307 void MacInstallFont() const ;
20b69855 308#if !wxMAC_USE_CORE_GRAPHICS
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309 void MacInstallPen() const ;
310 void MacInstallBrush() const ;
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311#endif
312
ddb08e02 313 wxPoint m_macLocalOrigin ;
20b69855 314 mutable void* m_macATSUIStyle ;
8cf73271 315
ddb08e02 316 WXHDC m_macPort ;
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317#if wxMAC_USE_CORE_GRAPHICS
318 // CoreGraphics
319 wxGraphicContext * m_graphicContext ;
880f5369 320 wxPoint m_macLocalOriginInPort ;
20b69855 321#else
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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 void MacSetupPort( wxMacPortStateHelper* ph ) const ;
329 void MacCleanupPort( wxMacPortStateHelper* ph ) const ;
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330 mutable wxMacPortStateHelper* m_macCurrentPortStateHelper ;
331 mutable bool m_macFormerAliasState ;
332 mutable short m_macFormerAliasSize ;
333 mutable bool m_macAliasWasEnabled ;
334 mutable void* m_macForegroundPixMap ;
335 mutable void* m_macBackgroundPixMap ;
20b69855 336#endif
613a24f7 337
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338#if wxMAC_USE_CORE_GRAPHICS
339#endif
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340};
341
342#endif
343 // _WX_DC_H_