| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: wx/os2/dc.h |
| 3 | // Purpose: wxDC class |
| 4 | // Author: David Webster |
| 5 | // Modified by: |
| 6 | // Created: 08/26/99 |
| 7 | // Copyright: (c) David Webster |
| 8 | // Licence: wxWindows licence |
| 9 | ///////////////////////////////////////////////////////////////////////////// |
| 10 | |
| 11 | #ifndef _WX_DC_H_ |
| 12 | #define _WX_DC_H_ |
| 13 | |
| 14 | #include "wx/defs.h" |
| 15 | #include "wx/dc.h" |
| 16 | |
| 17 | // --------------------------------------------------------------------------- |
| 18 | // macros |
| 19 | // --------------------------------------------------------------------------- |
| 20 | |
| 21 | // Logical to device |
| 22 | // Absolute |
| 23 | #define XLOG2DEV(x) (x) |
| 24 | #define YLOG2DEV(y) (y) |
| 25 | |
| 26 | // Relative |
| 27 | #define XLOG2DEVREL(x) (x) |
| 28 | #define YLOG2DEVREL(y) (y) |
| 29 | |
| 30 | // Device to logical |
| 31 | // Absolute |
| 32 | #define XDEV2LOG(x) (x) |
| 33 | |
| 34 | #define YDEV2LOG(y) (y) |
| 35 | |
| 36 | // Relative |
| 37 | #define XDEV2LOGREL(x) (x) |
| 38 | #define YDEV2LOGREL(y) (y) |
| 39 | |
| 40 | /* |
| 41 | * Have the same macros as for XView but not for every operation: |
| 42 | * just for calculating window/viewport extent (a better way of scaling). |
| 43 | */ |
| 44 | |
| 45 | // Logical to device |
| 46 | // Absolute |
| 47 | #define MS_XLOG2DEV(x) LogicalToDevice(x) |
| 48 | |
| 49 | #define MS_YLOG2DEV(y) LogicalToDevice(y) |
| 50 | |
| 51 | // Relative |
| 52 | #define MS_XLOG2DEVREL(x) LogicalToDeviceXRel(x) |
| 53 | #define MS_YLOG2DEVREL(y) LogicalToDeviceYRel(y) |
| 54 | |
| 55 | // Device to logical |
| 56 | // Absolute |
| 57 | #define MS_XDEV2LOG(x) DeviceToLogicalX(x) |
| 58 | |
| 59 | #define MS_YDEV2LOG(y) DeviceToLogicalY(y) |
| 60 | |
| 61 | // Relative |
| 62 | #define MS_XDEV2LOGREL(x) DeviceToLogicalXRel(x) |
| 63 | #define MS_YDEV2LOGREL(y) DeviceToLogicalYRel(y) |
| 64 | |
| 65 | #define YSCALE(y) (yorigin - (y)) |
| 66 | |
| 67 | #define wx_round(a) (int)((a)+.5) |
| 68 | |
| 69 | #if wxUSE_DC_CACHEING |
| 70 | /* |
| 71 | * Cached blitting, maintaining a cache |
| 72 | * of bitmaps required for transparent blitting |
| 73 | * instead of constant creation/deletion |
| 74 | */ |
| 75 | |
| 76 | class wxDCCacheEntry : public wxObject |
| 77 | { |
| 78 | public: |
| 79 | wxDCCacheEntry( WXHBITMAP hBitmap |
| 80 | ,int nWidth |
| 81 | ,int nHeight |
| 82 | ,int nDepth |
| 83 | ); |
| 84 | wxDCCacheEntry( HPS hPS |
| 85 | ,int nDepth |
| 86 | ); |
| 87 | virtual ~wxDCCacheEntry(); |
| 88 | |
| 89 | WXHBITMAP m_hBitmap; |
| 90 | HPS m_hPS; |
| 91 | int m_nWidth; |
| 92 | int m_nHeight; |
| 93 | int m_nDepth; |
| 94 | }; // end of CLASS wxDCCacheEntry |
| 95 | #endif |
| 96 | |
| 97 | // this is an ABC: use one of the derived classes to create a DC associated |
| 98 | // with a window, screen, printer and so on |
| 99 | class WXDLLIMPEXP_CORE wxPMDCImpl : public wxDCImpl |
| 100 | { |
| 101 | DECLARE_DYNAMIC_CLASS(wxDC) |
| 102 | |
| 103 | public: |
| 104 | wxPMDCImpl(wxDC *owner, WXHDC hDC); |
| 105 | virtual ~wxPMDCImpl(); |
| 106 | |
| 107 | // implement base class pure virtuals |
| 108 | // ---------------------------------- |
| 109 | |
| 110 | virtual void Clear(); |
| 111 | |
| 112 | virtual bool StartDoc(const wxString& rsMessage); |
| 113 | virtual void EndDoc(); |
| 114 | |
| 115 | virtual void StartPage(); |
| 116 | virtual void EndPage(); |
| 117 | |
| 118 | virtual void SetFont(const wxFont& rFont); |
| 119 | virtual void SetPen(const wxPen& rPen); |
| 120 | virtual void SetBrush(const wxBrush& rBrush); |
| 121 | virtual void SetBackground(const wxBrush& rBrush); |
| 122 | virtual void SetBackgroundMode(int nMode); |
| 123 | virtual void SetPalette(const wxPalette& rPalette); |
| 124 | |
| 125 | virtual void DestroyClippingRegion(); |
| 126 | |
| 127 | virtual wxCoord GetCharHeight() const; |
| 128 | virtual wxCoord GetCharWidth() const; |
| 129 | |
| 130 | virtual bool CanDrawBitmap() const; |
| 131 | virtual bool CanGetTextExtent() const; |
| 132 | virtual int GetDepth() const; |
| 133 | virtual wxSize GetPPI() const; |
| 134 | |
| 135 | virtual void SetMapMode(wxMappingMode nMode); |
| 136 | virtual void SetUserScale( double dX |
| 137 | ,double dY |
| 138 | ); |
| 139 | virtual void SetLogicalScale( double dX |
| 140 | ,double dY |
| 141 | ); |
| 142 | virtual void SetLogicalOrigin( wxCoord vX |
| 143 | ,wxCoord vY |
| 144 | ); |
| 145 | virtual void SetDeviceOrigin( wxCoord vX |
| 146 | ,wxCoord vY |
| 147 | ); |
| 148 | virtual void SetAxisOrientation( bool bXLeftRight |
| 149 | ,bool bYBottomUp |
| 150 | ); |
| 151 | virtual void SetLogicalFunction(wxRasterOperationMode nFunction); |
| 152 | |
| 153 | // implementation from now on |
| 154 | // -------------------------- |
| 155 | |
| 156 | virtual void SetRop(WXHDC hCdc); |
| 157 | virtual void SelectOldObjects(WXHDC hDc); |
| 158 | |
| 159 | wxWindow* GetWindow() const { return m_pCanvas; } |
| 160 | void SetWindow(wxWindow* pWin) { m_pCanvas = pWin; } |
| 161 | |
| 162 | WXHDC GetHDC() const { return m_hDC; } |
| 163 | void SetHDC( WXHDC hDc |
| 164 | ,bool bOwnsDC = FALSE |
| 165 | ) |
| 166 | { |
| 167 | m_hDC = hDc; |
| 168 | m_bOwnsDC = bOwnsDC; |
| 169 | } |
| 170 | |
| 171 | HPS GetHPS() const { return m_hPS; } |
| 172 | void SetHPS(HPS hPS) |
| 173 | { |
| 174 | m_hPS = hPS; |
| 175 | } |
| 176 | const wxBitmap& GetSelectedBitmap() const { return m_vSelectedBitmap; } |
| 177 | wxBitmap& GetSelectedBitmap() { return m_vSelectedBitmap; } |
| 178 | |
| 179 | void UpdateClipBox(); |
| 180 | |
| 181 | #if wxUSE_DC_CACHEING |
| 182 | static wxDCCacheEntry* FindBitmapInCache( HPS hPS |
| 183 | ,int nWidth |
| 184 | ,int nHeight |
| 185 | ); |
| 186 | static wxDCCacheEntry* FindDCInCache( wxDCCacheEntry* pNotThis |
| 187 | ,HPS hPS |
| 188 | ); |
| 189 | |
| 190 | static void AddToBitmapCache(wxDCCacheEntry* pEntry); |
| 191 | static void AddToDCCache(wxDCCacheEntry* pEntry); |
| 192 | static void ClearCache(); |
| 193 | #endif |
| 194 | |
| 195 | protected: |
| 196 | void Init() |
| 197 | { |
| 198 | m_pCanvas = NULL; |
| 199 | m_hOldBitmap = 0; |
| 200 | m_hOldPen = 0; |
| 201 | m_hOldBrush = 0; |
| 202 | m_hOldFont = 0; |
| 203 | #if wxUSE_PALETTE |
| 204 | m_hOldPalette = 0; |
| 205 | #endif // wxUSE_PALETTE |
| 206 | |
| 207 | m_bOwnsDC = false; |
| 208 | m_hDC = 0; |
| 209 | m_hOldPS = NULL; |
| 210 | m_hPS = NULL; |
| 211 | m_bIsPaintTime = false; // True at Paint Time |
| 212 | |
| 213 | m_pen.SetColour(*wxBLACK); |
| 214 | m_brush.SetColour(*wxWHITE); |
| 215 | } |
| 216 | |
| 217 | // create an uninitialized DC: this should be only used by the derived |
| 218 | // classes |
| 219 | wxPMDCImpl( wxDC *owner ) : wxDCImpl( owner ) { Init(); } |
| 220 | |
| 221 | public: |
| 222 | virtual void DoGetTextExtent( const wxString& rsString |
| 223 | ,wxCoord* pX |
| 224 | ,wxCoord* pY |
| 225 | ,wxCoord* pDescent = NULL |
| 226 | ,wxCoord* pExternalLeading = NULL |
| 227 | ,const wxFont* pTheFont = NULL |
| 228 | ) const; |
| 229 | virtual bool DoFloodFill( wxCoord vX |
| 230 | ,wxCoord vY |
| 231 | ,const wxColour& rCol |
| 232 | ,wxFloodFillStyle nStyle = wxFLOOD_SURFACE |
| 233 | ); |
| 234 | |
| 235 | virtual bool DoGetPixel( wxCoord vX |
| 236 | ,wxCoord vY |
| 237 | ,wxColour* pCol |
| 238 | ) const; |
| 239 | |
| 240 | virtual void DoDrawPoint( wxCoord vX |
| 241 | ,wxCoord vY |
| 242 | ); |
| 243 | virtual void DoDrawLine( wxCoord vX1 |
| 244 | ,wxCoord vY1 |
| 245 | ,wxCoord vX2 |
| 246 | ,wxCoord vY2 |
| 247 | ); |
| 248 | |
| 249 | virtual void DoDrawArc( wxCoord vX1 |
| 250 | ,wxCoord vY1 |
| 251 | ,wxCoord vX2 |
| 252 | ,wxCoord vY2 |
| 253 | ,wxCoord vXc |
| 254 | ,wxCoord vYc |
| 255 | ); |
| 256 | virtual void DoDrawCheckMark( wxCoord vX |
| 257 | ,wxCoord vY |
| 258 | ,wxCoord vWidth |
| 259 | ,wxCoord vHeight |
| 260 | ); |
| 261 | virtual void DoDrawEllipticArc( wxCoord vX |
| 262 | ,wxCoord vY |
| 263 | ,wxCoord vW |
| 264 | ,wxCoord vH |
| 265 | ,double dSa |
| 266 | ,double dEa |
| 267 | ); |
| 268 | |
| 269 | virtual void DoDrawRectangle( wxCoord vX |
| 270 | ,wxCoord vY |
| 271 | ,wxCoord vWidth |
| 272 | ,wxCoord vHeight |
| 273 | ); |
| 274 | virtual void DoDrawRoundedRectangle( wxCoord vX |
| 275 | ,wxCoord vY |
| 276 | ,wxCoord vWidth |
| 277 | ,wxCoord vHeight |
| 278 | ,double dRadius |
| 279 | ); |
| 280 | virtual void DoDrawEllipse( wxCoord vX |
| 281 | ,wxCoord vY |
| 282 | ,wxCoord vWidth |
| 283 | ,wxCoord vHeight |
| 284 | ); |
| 285 | |
| 286 | virtual void DoCrossHair( wxCoord vX |
| 287 | ,wxCoord vY |
| 288 | ); |
| 289 | |
| 290 | virtual void DoDrawIcon( const wxIcon& rIcon |
| 291 | ,wxCoord vX |
| 292 | ,wxCoord vY |
| 293 | ); |
| 294 | virtual void DoDrawBitmap( const wxBitmap& rBmp |
| 295 | ,wxCoord vX |
| 296 | ,wxCoord vY |
| 297 | ,bool bUseMask = FALSE |
| 298 | ); |
| 299 | |
| 300 | virtual void DoDrawText( const wxString& rsText |
| 301 | ,wxCoord vX |
| 302 | ,wxCoord vY |
| 303 | ); |
| 304 | virtual void DoDrawRotatedText( const wxString& rsText |
| 305 | ,wxCoord vX |
| 306 | ,wxCoord vY |
| 307 | ,double dAngle |
| 308 | ); |
| 309 | |
| 310 | virtual bool DoBlit( wxCoord vXdest |
| 311 | ,wxCoord vYdest |
| 312 | ,wxCoord vWidth |
| 313 | ,wxCoord vHeight |
| 314 | ,wxDC* pSource |
| 315 | ,wxCoord vXsrc |
| 316 | ,wxCoord vYsrc |
| 317 | ,wxRasterOperationMode nRop = wxCOPY |
| 318 | ,bool bUseMask = FALSE |
| 319 | ,wxCoord vXsrcMask = -1 |
| 320 | ,wxCoord vYsrcMask = -1 |
| 321 | ); |
| 322 | |
| 323 | virtual void DoSetClippingRegion( wxCoord vX |
| 324 | ,wxCoord vY |
| 325 | ,wxCoord vWidth |
| 326 | ,wxCoord vHeight |
| 327 | ); |
| 328 | virtual void DoSetDeviceClippingRegion(const wxRegion& rRegion); |
| 329 | |
| 330 | virtual void DoGetSize( int* pWidth |
| 331 | ,int* pHeight |
| 332 | ) const; |
| 333 | virtual void DoGetSizeMM( int* pWidth |
| 334 | ,int* pHeight |
| 335 | ) const; |
| 336 | |
| 337 | virtual void DoDrawLines( int n |
| 338 | ,const wxPoint vaPoints[] |
| 339 | ,wxCoord vXoffset |
| 340 | ,wxCoord yYoffset |
| 341 | ); |
| 342 | virtual void DoDrawPolygon( int n |
| 343 | ,const wxPoint vaPoints[] |
| 344 | ,wxCoord vXoffset |
| 345 | ,wxCoord vYoffset |
| 346 | ,wxPolygonFillMode nFillStyle = wxODDEVEN_RULE |
| 347 | ); |
| 348 | |
| 349 | #if wxUSE_PALETTE |
| 350 | void DoSelectPalette(bool bRealize = FALSE); |
| 351 | void InitializePalette(); |
| 352 | #endif // wxUSE_PALETTE |
| 353 | |
| 354 | protected: |
| 355 | // |
| 356 | // common part of DoDrawText() and DoDrawRotatedText() |
| 357 | // |
| 358 | void DrawAnyText( const wxString& rsText |
| 359 | ,wxCoord vX |
| 360 | ,wxCoord vY |
| 361 | ); |
| 362 | |
| 363 | // OS2-specific member variables ?? do we even need this under OS/2? |
| 364 | int m_nWindowExtX; |
| 365 | int m_nWindowExtY; |
| 366 | |
| 367 | // |
| 368 | // the window associated with this DC (may be NULL) |
| 369 | // |
| 370 | wxWindow* m_pCanvas; |
| 371 | wxBitmap m_vSelectedBitmap; |
| 372 | |
| 373 | public: |
| 374 | // PM specific stuff |
| 375 | HPS m_hPS; |
| 376 | HPS m_hOldPS; // old hPS, if any |
| 377 | bool m_bIsPaintTime;// True at Paint Time |
| 378 | |
| 379 | RECTL m_vRclPaint; // Bounding rectangle at Paint time etc. |
| 380 | // |
| 381 | // TRUE => DeleteDC() in dtor, FALSE => only ReleaseDC() it |
| 382 | // |
| 383 | bool m_bOwnsDC:1; |
| 384 | |
| 385 | // |
| 386 | // our HDC |
| 387 | // |
| 388 | WXHDC m_hDC; |
| 389 | |
| 390 | // |
| 391 | // Store all old GDI objects when do a SelectObject, so we can select them |
| 392 | // back in (this unselecting user's objects) so we can safely delete the |
| 393 | // DC. |
| 394 | // |
| 395 | WXHBITMAP m_hOldBitmap; |
| 396 | WXHPEN m_hOldPen; |
| 397 | WXHBRUSH m_hOldBrush; |
| 398 | WXHFONT m_hOldFont; |
| 399 | WXHPALETTE m_hOldPalette; |
| 400 | |
| 401 | #if wxUSE_DC_CACHEING |
| 402 | static wxList m_svBitmapCache; |
| 403 | static wxList m_svDCCache; |
| 404 | #endif |
| 405 | }; // end of CLASS wxDC |
| 406 | #endif |
| 407 | // _WX_DC_H_ |