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