| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // File: region.cpp |
| 3 | // Purpose: Region class |
| 4 | // Author: David Webster |
| 5 | // Modified by: |
| 6 | // Created: 10/15/99 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) Davdi Webster |
| 9 | // Licence: wxWindows licence |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // For compilers that support precompilation, includes "wx.h". |
| 13 | #include "wx/wxprec.h" |
| 14 | |
| 15 | #include "wx/app.h" |
| 16 | #include "wx/os2/region.h" |
| 17 | #include "wx/gdicmn.h" |
| 18 | |
| 19 | #include "wx/window.h" |
| 20 | #include "wx/os2/private.h" |
| 21 | |
| 22 | IMPLEMENT_DYNAMIC_CLASS(wxRegion, wxGDIObject) |
| 23 | IMPLEMENT_DYNAMIC_CLASS(wxRegionIterator, wxObject) |
| 24 | |
| 25 | //----------------------------------------------------------------------------- |
| 26 | // wxRegionRefData implementation |
| 27 | //----------------------------------------------------------------------------- |
| 28 | |
| 29 | class WXDLLEXPORT wxRegionRefData : public wxGDIRefData { |
| 30 | public: |
| 31 | wxRegionRefData() |
| 32 | { |
| 33 | m_hRegion = 0; |
| 34 | } |
| 35 | |
| 36 | wxRegionRefData(const wxRegionRefData& rData) |
| 37 | { |
| 38 | RGNRECT vRgnData; |
| 39 | PRECTL pRect = NULL; |
| 40 | |
| 41 | if (::GpiQueryRegionRects( rData.m_hPS // Pres space |
| 42 | ,rData.m_hRegion // Handle of region to query |
| 43 | ,NULL // Return all RECTs |
| 44 | ,&vRgnData // Will contain number or RECTs in region |
| 45 | ,NULL // NULL to return number of RECTs |
| 46 | )) |
| 47 | { |
| 48 | pRect = new RECTL[vRgnData.crcReturned]; |
| 49 | vRgnData.crc = vRgnData.crcReturned; |
| 50 | vRgnData.ircStart = 1; |
| 51 | if (::GpiQueryRegionRects( rData.m_hPS // Pres space of source |
| 52 | ,rData.m_hRegion // Handle of source region |
| 53 | ,NULL // Return all RECTs |
| 54 | ,&vRgnData // Operations set to return rects |
| 55 | ,pRect // Will contain the actual RECTS |
| 56 | )) |
| 57 | { |
| 58 | m_hRegion = ::GpiCreateRegion( rData.m_hPS |
| 59 | ,vRgnData.crcReturned |
| 60 | ,pRect |
| 61 | ); |
| 62 | m_hPS = rData.m_hPS; |
| 63 | } |
| 64 | delete [] pRect; |
| 65 | } |
| 66 | } |
| 67 | |
| 68 | ~wxRegionRefData() |
| 69 | { |
| 70 | ::GpiDestroyRegion(m_hPS, m_hRegion); |
| 71 | } |
| 72 | |
| 73 | HRGN m_hRegion; |
| 74 | HPS m_hPS; |
| 75 | }; |
| 76 | |
| 77 | #define M_REGION (((wxRegionRefData*)m_refData)->m_hRegion) |
| 78 | |
| 79 | //----------------------------------------------------------------------------- |
| 80 | // wxRegion |
| 81 | //----------------------------------------------------------------------------- |
| 82 | |
| 83 | /*! |
| 84 | * Create an empty region. |
| 85 | */ |
| 86 | wxRegion::wxRegion() |
| 87 | { |
| 88 | m_refData = new wxRegionRefData; |
| 89 | } // end of wxRegion::wxRegion |
| 90 | |
| 91 | wxRegion::wxRegion( |
| 92 | WXHRGN hRegion |
| 93 | ) |
| 94 | { |
| 95 | m_refData = new wxRegionRefData; |
| 96 | M_REGION = (HRGN) hRegion; |
| 97 | } // end of wxRegion::wxRegion |
| 98 | |
| 99 | wxRegion::wxRegion( |
| 100 | wxCoord x |
| 101 | , wxCoord y |
| 102 | , wxCoord vWidth |
| 103 | , wxCoord vHeight |
| 104 | ) |
| 105 | { |
| 106 | RECTL vRect; |
| 107 | SIZEL vSize = {0, 0}; |
| 108 | DEVOPENSTRUC vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L}; |
| 109 | HDC hDC = ::DevOpenDC( vHabmain |
| 110 | ,OD_MEMORY |
| 111 | ,"*" |
| 112 | ,5L |
| 113 | ,(PDEVOPENDATA)&vDop |
| 114 | ,NULLHANDLE |
| 115 | ); |
| 116 | |
| 117 | |
| 118 | vRect.xLeft = x; |
| 119 | vRect.xRight = x + vWidth; |
| 120 | vRect.yBottom = y; |
| 121 | vRect.yTop = y + vHeight; |
| 122 | |
| 123 | m_refData = new wxRegionRefData; |
| 124 | |
| 125 | // |
| 126 | // Need a PS to create a Region |
| 127 | // |
| 128 | ((wxRegionRefData*)m_refData)->m_hPS = ::GpiCreatePS( vHabmain |
| 129 | ,hDC |
| 130 | ,&vSize |
| 131 | ,PU_PELS | GPIT_MICRO | GPIA_ASSOC |
| 132 | ); |
| 133 | M_REGION = ::GpiCreateRegion( ((wxRegionRefData*)m_refData)->m_hPS |
| 134 | ,1 |
| 135 | ,&vRect |
| 136 | ); |
| 137 | } // end of wxRegion::wxRegion |
| 138 | |
| 139 | wxRegion::wxRegion( |
| 140 | const wxPoint& rTopLeft |
| 141 | , const wxPoint& rBottomRight |
| 142 | ) |
| 143 | { |
| 144 | RECTL vRect; |
| 145 | SIZEL vSize = {0, 0}; |
| 146 | DEVOPENSTRUC vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L}; |
| 147 | HDC hDC = ::DevOpenDC( vHabmain |
| 148 | ,OD_MEMORY |
| 149 | ,"*" |
| 150 | ,5L |
| 151 | ,(PDEVOPENDATA)&vDop |
| 152 | ,NULLHANDLE |
| 153 | ); |
| 154 | |
| 155 | vRect.xLeft = rTopLeft.x; |
| 156 | vRect.xRight = rBottomRight.x; |
| 157 | vRect.yBottom = rBottomRight.y; |
| 158 | vRect.yTop = rTopLeft.y; |
| 159 | |
| 160 | m_refData = new wxRegionRefData; |
| 161 | |
| 162 | // |
| 163 | // Need a PS to create a Region |
| 164 | // |
| 165 | ((wxRegionRefData*)m_refData)->m_hPS = ::GpiCreatePS( vHabmain |
| 166 | ,hDC |
| 167 | ,&vSize |
| 168 | ,PU_PELS | GPIT_MICRO | GPIA_ASSOC |
| 169 | ); |
| 170 | M_REGION = ::GpiCreateRegion( ((wxRegionRefData*)m_refData)->m_hPS |
| 171 | ,1 |
| 172 | ,&vRect |
| 173 | ); |
| 174 | } // end of wxRegion::wxRegion |
| 175 | |
| 176 | wxRegion::wxRegion( |
| 177 | const wxRect& rRect |
| 178 | ) |
| 179 | { |
| 180 | RECTL vRect; |
| 181 | SIZEL vSize = {0, 0}; |
| 182 | DEVOPENSTRUC vDop = {0L, "DISPLAY", NULL, 0L, 0L, 0L, 0L, 0L, 0L}; |
| 183 | HDC hDC = ::DevOpenDC( vHabmain |
| 184 | ,OD_MEMORY |
| 185 | ,"*" |
| 186 | ,5L |
| 187 | ,(PDEVOPENDATA)&vDop |
| 188 | ,NULLHANDLE |
| 189 | ); |
| 190 | |
| 191 | |
| 192 | vRect.xLeft = rRect.x; |
| 193 | vRect.xRight = rRect.x + rRect.width; |
| 194 | vRect.yBottom = rRect.y; |
| 195 | vRect.yTop = rRect.y + rRect.height; |
| 196 | |
| 197 | m_refData = new wxRegionRefData; |
| 198 | |
| 199 | // |
| 200 | // Need a PS to create a Region |
| 201 | // |
| 202 | ((wxRegionRefData*)m_refData)->m_hPS = ::GpiCreatePS( vHabmain |
| 203 | ,hDC |
| 204 | ,&vSize |
| 205 | ,PU_PELS | GPIT_MICRO | GPIA_ASSOC |
| 206 | ); |
| 207 | M_REGION = ::GpiCreateRegion( ((wxRegionRefData*)m_refData)->m_hPS |
| 208 | ,1 |
| 209 | ,&vRect |
| 210 | ); |
| 211 | } // end of wxRegion::wxRegion |
| 212 | |
| 213 | // |
| 214 | // Destroy the region. |
| 215 | // |
| 216 | wxRegion::~wxRegion() |
| 217 | { |
| 218 | } // end of wxRegion::~wxRegion |
| 219 | |
| 220 | //----------------------------------------------------------------------------- |
| 221 | //# Modify region |
| 222 | //----------------------------------------------------------------------------- |
| 223 | |
| 224 | // |
| 225 | // Clear current region |
| 226 | // |
| 227 | void wxRegion::Clear() |
| 228 | { |
| 229 | UnRef(); |
| 230 | } // end of wxRegion::Clear |
| 231 | |
| 232 | // |
| 233 | // Combine rectangle (x, y, w, h) with this. |
| 234 | // |
| 235 | bool wxRegion::Combine( |
| 236 | wxCoord x |
| 237 | , wxCoord y |
| 238 | , wxCoord vWidth |
| 239 | , wxCoord vHeight |
| 240 | , wxRegionOp eOp |
| 241 | ) |
| 242 | { |
| 243 | // |
| 244 | // Don't change shared data |
| 245 | // |
| 246 | if (!m_refData) |
| 247 | { |
| 248 | m_refData = new wxRegionRefData(); |
| 249 | } |
| 250 | else if (m_refData->GetRefCount() > 1) |
| 251 | { |
| 252 | wxRegionRefData* pRef = (wxRegionRefData*)m_refData; |
| 253 | |
| 254 | UnRef(); |
| 255 | m_refData = new wxRegionRefData(*pRef); |
| 256 | } |
| 257 | |
| 258 | // |
| 259 | // If ref count is 1, that means it's 'ours' anyway so no action. |
| 260 | // |
| 261 | RECTL vRect; |
| 262 | |
| 263 | vRect.xLeft = x; |
| 264 | vRect.xRight = x + vWidth; |
| 265 | vRect.yBottom = y; |
| 266 | vRect.yTop = y + vHeight; |
| 267 | |
| 268 | HRGN hRgn = ::GpiCreateRegion( ((wxRegionRefData*)m_refData)->m_hPS |
| 269 | ,1 |
| 270 | ,&vRect |
| 271 | ); |
| 272 | LONG lMode = 0L; |
| 273 | |
| 274 | switch (eOp) |
| 275 | { |
| 276 | case wxRGN_AND: |
| 277 | lMode = CRGN_AND; |
| 278 | break; |
| 279 | |
| 280 | case wxRGN_OR: |
| 281 | lMode = CRGN_OR; |
| 282 | break; |
| 283 | |
| 284 | case wxRGN_XOR: |
| 285 | lMode = CRGN_XOR; |
| 286 | break; |
| 287 | |
| 288 | case wxRGN_DIFF: |
| 289 | lMode = CRGN_DIFF; |
| 290 | break; |
| 291 | |
| 292 | case wxRGN_COPY: |
| 293 | default: |
| 294 | lMode = CRGN_COPY; |
| 295 | break; |
| 296 | } |
| 297 | bool bSuccess = ::GpiCombineRegion( ((wxRegionRefData*)m_refData)->m_hPS |
| 298 | ,M_REGION |
| 299 | ,M_REGION |
| 300 | ,hRgn |
| 301 | ,lMode |
| 302 | ); |
| 303 | ::GpiDestroyRegion ( ((wxRegionRefData*)m_refData)->m_hPS |
| 304 | ,hRgn |
| 305 | ); |
| 306 | |
| 307 | return bSuccess; |
| 308 | } // end of wxRegion::Combine |
| 309 | |
| 310 | // |
| 311 | // Union region with this. |
| 312 | // |
| 313 | bool wxRegion::Combine( |
| 314 | const wxRegion& rRegion |
| 315 | , wxRegionOp eOp |
| 316 | ) |
| 317 | { |
| 318 | if (rRegion.Empty()) |
| 319 | return FALSE; |
| 320 | |
| 321 | // |
| 322 | // Don't change shared data |
| 323 | // |
| 324 | if (!m_refData) |
| 325 | { |
| 326 | m_refData = new wxRegionRefData(); |
| 327 | } |
| 328 | else if (m_refData->GetRefCount() > 1) |
| 329 | { |
| 330 | wxRegionRefData* pRef = (wxRegionRefData*)m_refData; |
| 331 | |
| 332 | UnRef(); |
| 333 | m_refData = new wxRegionRefData(*pRef); |
| 334 | } |
| 335 | |
| 336 | LONG lMode = 0; |
| 337 | |
| 338 | switch (eOp) |
| 339 | { |
| 340 | case wxRGN_AND: |
| 341 | lMode = CRGN_AND; |
| 342 | break; |
| 343 | |
| 344 | case wxRGN_OR: |
| 345 | lMode = CRGN_OR; |
| 346 | break; |
| 347 | |
| 348 | case wxRGN_XOR: |
| 349 | lMode = CRGN_XOR; |
| 350 | break; |
| 351 | |
| 352 | case wxRGN_DIFF: |
| 353 | lMode = CRGN_DIFF; |
| 354 | break; |
| 355 | |
| 356 | case wxRGN_COPY: |
| 357 | default: |
| 358 | lMode = CRGN_COPY; |
| 359 | break; |
| 360 | } |
| 361 | return (::GpiCombineRegion( ((wxRegionRefData*)rRegion.m_refData)->m_hPS |
| 362 | ,M_REGION |
| 363 | ,M_REGION |
| 364 | ,((wxRegionRefData*)rRegion.m_refData)->m_hRegion |
| 365 | ,lMode |
| 366 | ) != RGN_ERROR); |
| 367 | } // end of wxRegion::Combine |
| 368 | |
| 369 | bool wxRegion::Combine( |
| 370 | const wxRect& rRect |
| 371 | , wxRegionOp eOp |
| 372 | ) |
| 373 | { |
| 374 | return Combine( rRect.GetLeft() |
| 375 | ,rRect.GetTop() |
| 376 | ,rRect.GetWidth() |
| 377 | ,rRect.GetHeight() |
| 378 | ,eOp |
| 379 | ); |
| 380 | } // end of wxRegion::Combine |
| 381 | |
| 382 | //----------------------------------------------------------------------------- |
| 383 | //# Information on region |
| 384 | //----------------------------------------------------------------------------- |
| 385 | |
| 386 | // |
| 387 | // Outer bounds of region |
| 388 | // |
| 389 | void wxRegion::GetBox( |
| 390 | wxCoord& x |
| 391 | , wxCoord& y |
| 392 | , wxCoord& vWidth |
| 393 | , wxCoord& vHeight |
| 394 | ) const |
| 395 | { |
| 396 | if (m_refData) |
| 397 | { |
| 398 | RECTL vRect; |
| 399 | |
| 400 | ::GpiQueryRegionBox( ((wxRegionRefData*)m_refData)->m_hPS |
| 401 | ,M_REGION |
| 402 | ,&vRect |
| 403 | ); |
| 404 | x = vRect.xLeft; |
| 405 | y = vRect.yTop; |
| 406 | vWidth = vRect.xRight - vRect.xLeft; |
| 407 | vHeight = vRect.yTop - vRect.yBottom; |
| 408 | } |
| 409 | else |
| 410 | { |
| 411 | x = y = vWidth = vHeight = 0L; |
| 412 | } |
| 413 | } // end of wxRegion::GetBox |
| 414 | |
| 415 | wxRect wxRegion::GetBox() const |
| 416 | { |
| 417 | wxCoord x, y, w, h; |
| 418 | GetBox(x, y, w, h); |
| 419 | return wxRect(x, y, w, h); |
| 420 | } |
| 421 | |
| 422 | // |
| 423 | // Is region empty? |
| 424 | // |
| 425 | bool wxRegion::Empty() const |
| 426 | { |
| 427 | wxCoord x; |
| 428 | wxCoord y; |
| 429 | wxCoord vWidth; |
| 430 | wxCoord vHeight; |
| 431 | |
| 432 | if (M_REGION == 0) |
| 433 | return TRUE; |
| 434 | |
| 435 | GetBox( x |
| 436 | ,y |
| 437 | ,vWidth |
| 438 | ,vHeight |
| 439 | ); |
| 440 | return ((vWidth == 0) && (vHeight == 0)); |
| 441 | } // end of wxRegion::Empty |
| 442 | |
| 443 | //----------------------------------------------------------------------------- |
| 444 | // Tests |
| 445 | //----------------------------------------------------------------------------- |
| 446 | |
| 447 | // |
| 448 | // Does the region contain the point (x,y)? |
| 449 | wxRegionContain wxRegion::Contains( |
| 450 | wxCoord x |
| 451 | , wxCoord y |
| 452 | ) const |
| 453 | { |
| 454 | bool bOK = FALSE; |
| 455 | POINTL vPoint; |
| 456 | |
| 457 | vPoint.x = x; |
| 458 | vPoint.y = y; |
| 459 | |
| 460 | if (!m_refData) |
| 461 | return wxOutRegion; |
| 462 | |
| 463 | LONG lInside = ::GpiPtInRegion( ((wxRegionRefData*)m_refData)->m_hPS |
| 464 | ,M_REGION |
| 465 | ,&vPoint |
| 466 | ); |
| 467 | if (lInside == PRGN_INSIDE) |
| 468 | return wxInRegion; |
| 469 | return wxOutRegion; |
| 470 | } // end of wxRegion::Contains |
| 471 | |
| 472 | // |
| 473 | // Does the region contain the point pt? |
| 474 | // |
| 475 | wxRegionContain wxRegion::Contains( |
| 476 | const wxPoint& rPoint |
| 477 | ) const |
| 478 | { |
| 479 | POINTL vPoint = { rPoint.x, rPoint.y }; |
| 480 | |
| 481 | if (!m_refData) |
| 482 | return wxOutRegion; |
| 483 | |
| 484 | LONG lInside = ::GpiPtInRegion( ((wxRegionRefData*)m_refData)->m_hPS |
| 485 | ,M_REGION |
| 486 | ,&vPoint |
| 487 | ); |
| 488 | if (lInside == PRGN_INSIDE) |
| 489 | return wxInRegion; |
| 490 | else |
| 491 | return wxOutRegion; |
| 492 | } // end of wxRegion::Contains |
| 493 | |
| 494 | // |
| 495 | // Does the region contain the rectangle (x, y, w, h)? |
| 496 | // |
| 497 | wxRegionContain wxRegion::Contains( |
| 498 | wxCoord x |
| 499 | , wxCoord y |
| 500 | , wxCoord vWidth |
| 501 | , wxCoord vHeight |
| 502 | ) const |
| 503 | { |
| 504 | RECTL vRect; |
| 505 | |
| 506 | if (!m_refData) |
| 507 | return wxOutRegion; |
| 508 | |
| 509 | vRect.xLeft = x; |
| 510 | vRect.yTop = y; |
| 511 | vRect.xRight = x + vWidth; |
| 512 | vRect.yBottom = y + vHeight; |
| 513 | |
| 514 | if (PRGN_INSIDE == ::GpiRectInRegion( ((wxRegionRefData*)m_refData)->m_hPS |
| 515 | ,M_REGION |
| 516 | ,&vRect |
| 517 | )) |
| 518 | return wxInRegion; |
| 519 | else |
| 520 | return wxOutRegion; |
| 521 | } // end of wxRegion::Contains |
| 522 | |
| 523 | // |
| 524 | // Does the region contain the rectangle rect |
| 525 | // |
| 526 | wxRegionContain wxRegion::Contains( |
| 527 | const wxRect& rRect |
| 528 | ) const |
| 529 | { |
| 530 | if (!m_refData) |
| 531 | return wxOutRegion; |
| 532 | |
| 533 | wxCoord x; |
| 534 | wxCoord y; |
| 535 | wxCoord vWidth; |
| 536 | wxCoord vHeight; |
| 537 | |
| 538 | x = rRect.x; |
| 539 | y = rRect.y; |
| 540 | vWidth = rRect.GetWidth(); |
| 541 | vHeight = rRect.GetHeight(); |
| 542 | return Contains( x |
| 543 | ,y |
| 544 | ,vWidth |
| 545 | ,vHeight |
| 546 | ); |
| 547 | } // end of wxRegion::Contains |
| 548 | |
| 549 | // |
| 550 | // Get internal region handle |
| 551 | // |
| 552 | WXHRGN wxRegion::GetHRGN() const |
| 553 | { |
| 554 | if (!m_refData) |
| 555 | return (WXHRGN) 0; |
| 556 | return (WXHRGN) M_REGION; |
| 557 | } |
| 558 | |
| 559 | // |
| 560 | // Set a new PS, this means we have to recreate the old region in the new |
| 561 | // PS |
| 562 | // |
| 563 | void wxRegion::SetPS( |
| 564 | HPS hPS |
| 565 | ) |
| 566 | { |
| 567 | RGNRECT vRgnData; |
| 568 | PRECTL pRect = NULL; |
| 569 | |
| 570 | if (::GpiQueryRegionRects( ((wxRegionRefData*)m_refData)->m_hPS |
| 571 | ,((wxRegionRefData*)m_refData)->m_hRegion |
| 572 | ,NULL |
| 573 | ,&vRgnData |
| 574 | ,NULL |
| 575 | )) |
| 576 | { |
| 577 | pRect = new RECTL[vRgnData.crcReturned]; |
| 578 | vRgnData.crc = vRgnData.crcReturned; |
| 579 | vRgnData.ircStart = 1; |
| 580 | if (::GpiQueryRegionRects( ((wxRegionRefData*)m_refData)->m_hPS |
| 581 | ,((wxRegionRefData*)m_refData)->m_hRegion |
| 582 | ,NULL |
| 583 | ,&vRgnData |
| 584 | ,pRect |
| 585 | )) |
| 586 | { |
| 587 | // |
| 588 | // First destroy the region out of the old PS |
| 589 | // and then create it in the new and set the new to current |
| 590 | // |
| 591 | ::GpiDestroyRegion( ((wxRegionRefData*)m_refData)->m_hPS |
| 592 | ,M_REGION |
| 593 | ); |
| 594 | ((wxRegionRefData*)m_refData)->m_hRegion = ::GpiCreateRegion( hPS |
| 595 | ,vRgnData.crcReturned |
| 596 | ,pRect |
| 597 | ); |
| 598 | ((wxRegionRefData*)m_refData)->m_hPS = hPS; |
| 599 | } |
| 600 | delete [] pRect; |
| 601 | } |
| 602 | } // end of wxRegion::SetPS |
| 603 | |
| 604 | /////////////////////////////////////////////////////////////////////////////// |
| 605 | // // |
| 606 | // wxRegionIterator // |
| 607 | // // |
| 608 | /////////////////////////////////////////////////////////////////////////////// |
| 609 | |
| 610 | // |
| 611 | // Initialize empty iterator |
| 612 | // |
| 613 | wxRegionIterator::wxRegionIterator() |
| 614 | : m_lCurrent(0) |
| 615 | , m_lNumRects(0) |
| 616 | , m_pRects(NULL) |
| 617 | { |
| 618 | } // end of wxRegionIterator::wxRegionIterator |
| 619 | |
| 620 | wxRegionIterator::~wxRegionIterator() |
| 621 | { |
| 622 | if (m_pRects) |
| 623 | delete[] m_pRects; |
| 624 | } // end of wxRegionIterator::~wxRegionIterator |
| 625 | |
| 626 | // |
| 627 | // Initialize iterator for region |
| 628 | // |
| 629 | wxRegionIterator::wxRegionIterator( |
| 630 | const wxRegion& rRegion |
| 631 | ) |
| 632 | { |
| 633 | m_pRects = NULL; |
| 634 | Reset(rRegion); |
| 635 | } // end of wxRegionIterator::wxRegionIterator |
| 636 | |
| 637 | // |
| 638 | // Reset iterator for a new /e region. |
| 639 | // |
| 640 | void wxRegionIterator::Reset( |
| 641 | const wxRegion& rRegion |
| 642 | ) |
| 643 | { |
| 644 | m_lCurrent = 0; |
| 645 | m_vRegion = rRegion; |
| 646 | |
| 647 | if (m_pRects) |
| 648 | delete[] m_pRects; |
| 649 | |
| 650 | m_pRects = NULL; |
| 651 | |
| 652 | if (m_vRegion.Empty()) |
| 653 | m_lNumRects = 0; |
| 654 | else |
| 655 | { |
| 656 | RGNRECT vRgnData; |
| 657 | PRECTL pRect; |
| 658 | |
| 659 | if (::GpiQueryRegionRects( ((wxRegionRefData*)rRegion.m_refData)->m_hPS // Pres space |
| 660 | ,((wxRegionRefData*)rRegion.m_refData)->m_hRegion // Handle of region to query |
| 661 | ,NULL // Return all RECTs |
| 662 | ,&vRgnData // Will contain number or RECTs in region |
| 663 | ,NULL // NULL to return number of RECTs |
| 664 | )) |
| 665 | { |
| 666 | pRect = new RECTL[vRgnData.crcReturned]; |
| 667 | m_pRects = new wxRect[vRgnData.crcReturned]; |
| 668 | vRgnData.crc = vRgnData.crcReturned; |
| 669 | m_lNumRects = vRgnData.crcReturned; |
| 670 | vRgnData.ircStart = 1; |
| 671 | if (::GpiQueryRegionRects( ((wxRegionRefData*)rRegion.m_refData)->m_hPS // Pres space of source |
| 672 | ,((wxRegionRefData*)rRegion.m_refData)->m_hRegion // Handle of source region |
| 673 | ,NULL // Return all RECTs |
| 674 | ,&vRgnData // Operations set to return rects |
| 675 | ,pRect // Will contain the actual RECTS |
| 676 | )) |
| 677 | { |
| 678 | M_REGION = ::GpiCreateRegion( ((wxRegionRefData*)rRegion.m_refData)->m_hPS |
| 679 | ,vRgnData.crcReturned |
| 680 | ,pRect |
| 681 | ); |
| 682 | for( LONG i = 0; i < m_lNumRects; i++) |
| 683 | { |
| 684 | m_pRects[i].x = pRect[i].xLeft; |
| 685 | m_pRects[i].width = pRect[i].xRight - pRect[i].xLeft; |
| 686 | m_pRects[i].y = pRect[i].yBottom; |
| 687 | m_pRects[i].height = pRect[i].yTop - pRect[i].yBottom; |
| 688 | } |
| 689 | ((wxRegionRefData*)m_refData)->m_hPS = ((wxRegionRefData*)rRegion.m_refData)->m_hPS; |
| 690 | } |
| 691 | } |
| 692 | } |
| 693 | } // end of wxRegionIterator::Reset |
| 694 | |
| 695 | // |
| 696 | // Increment iterator. The rectangle returned is the one after the |
| 697 | // incrementation. |
| 698 | // |
| 699 | void wxRegionIterator::operator++ () |
| 700 | { |
| 701 | if (m_lCurrent < m_lNumRects) |
| 702 | ++m_lCurrent; |
| 703 | } // end of wxRegionIterator::operator ++ |
| 704 | |
| 705 | // |
| 706 | // Increment iterator. The rectangle returned is the one before the |
| 707 | // incrementation. |
| 708 | // |
| 709 | void wxRegionIterator::operator++ (int) |
| 710 | { |
| 711 | if (m_lCurrent < m_lNumRects) |
| 712 | ++m_lCurrent; |
| 713 | } // end of wxRegionIterator::operator++ |
| 714 | |
| 715 | wxCoord wxRegionIterator::GetX() const |
| 716 | { |
| 717 | if (m_lCurrent < m_lNumRects) |
| 718 | return m_pRects[m_lCurrent].x; |
| 719 | return 0L; |
| 720 | } // end of wxRegionIterator::GetX |
| 721 | |
| 722 | wxCoord wxRegionIterator::GetY() const |
| 723 | { |
| 724 | if (m_lCurrent < m_lNumRects) |
| 725 | return m_pRects[m_lCurrent].y; |
| 726 | return 0L; |
| 727 | } // end of wxRegionIterator::GetY |
| 728 | |
| 729 | wxCoord wxRegionIterator::GetW() const |
| 730 | { |
| 731 | if (m_lCurrent < m_lNumRects) |
| 732 | return m_pRects[m_lCurrent].width ; |
| 733 | return 0L; |
| 734 | } // end of wxRegionIterator::GetW |
| 735 | |
| 736 | wxCoord wxRegionIterator::GetH() const |
| 737 | { |
| 738 | if (m_lCurrent < m_lNumRects) |
| 739 | return m_pRects[m_lCurrent].height; |
| 740 | return 0L; |
| 741 | } // end of wxRegionIterator::GetH |
| 742 | |