1357 AwtToolkit::GetInstance().eventNumber++;
1358
1359 static BOOL ignoreNextLBTNUP = FALSE; //Ignore next LBUTTONUP msg?
1360
1361 lastMessage = message;
1362
1363 if (message == WmAwtIsComponent) {
1364 // special message to identify AWT HWND's without using
1365 // resource hogging ::SetProp
1366 return (LRESULT)TRUE;
1367 }
1368
1369 DWORD curPos = 0;
1370
1371 UINT switchMessage = message;
1372 switch (switchMessage) {
1373 case WM_AWT_GETDC:
1374 {
1375 HDC hDC;
1376 // First, release the DCs scheduled for deletion
1377 ReleaseDCList(GetHWnd(), passiveDCList);
1378
1379 GetDCReturnStruct *returnStruct = new GetDCReturnStruct;
1380 returnStruct->gdiLimitReached = FALSE;
1381 if (AwtGDIObject::IncrementIfAvailable()) {
1382 hDC = ::GetDCEx(GetHWnd(), NULL,
1383 DCX_CACHE | DCX_CLIPCHILDREN |
1384 DCX_CLIPSIBLINGS);
1385 if (hDC != NULL) {
1386 // Add new DC to list of DC's associated with this Component
1387 activeDCList.AddDC(hDC, GetHWnd());
1388 } else {
1389 // Creation failed; decrement counter in AwtGDIObject
1390 AwtGDIObject::Decrement();
1391 }
1392 } else {
1393 hDC = NULL;
1394 returnStruct->gdiLimitReached = TRUE;
1395 }
1396 returnStruct->hDC = hDC;
1397 retValue = (LRESULT)returnStruct;
1398 mr = mrConsume;
1399 break;
1400 }
1401 case WM_AWT_RELEASEDC:
1402 {
1403 HDC hDC = (HDC)wParam;
1404 MoveDCToPassiveList(hDC, GetHWnd());
1405 ReleaseDCList(GetHWnd(), passiveDCList);
1406 mr = mrConsume;
1407 break;
1408 }
1409 case WM_AWT_RELEASE_ALL_DCS:
1410 {
1411 // Called during Component destruction. Gets current list of
1412 // DC's associated with Component and releases each DC.
1413 ReleaseDCList(GetHWnd(), activeDCList);
1414 ReleaseDCList(GetHWnd(), passiveDCList);
1415 mr = mrConsume;
1416 break;
1417 }
1418 case WM_AWT_SHOWCURSOR:
1419 ::ShowCursor(TRUE);
1420 break;
1421 case WM_AWT_HIDECURSOR:
1422 ::ShowCursor(FALSE);
1423 break;
1424 case WM_CREATE: mr = WmCreate(); break;
1425 case WM_CLOSE: mr = WmClose(); break;
1426 case WM_DESTROY: mr = WmDestroy(); break;
1427 case WM_NCDESTROY: mr = WmNcDestroy(); break;
1428
1429 case WM_ERASEBKGND:
1430 mr = WmEraseBkgnd((HDC)wParam, *(BOOL*)&retValue); break;
1431 case WM_PAINT:
1432 CheckFontSmoothingSettings(GetHWnd());
1433 /* Set draw state */
1434 SetDrawState(GetDrawState() | JAWT_LOCK_CLIP_CHANGED);
7419 listLock.Enter();
7420 DCItem **prevPtrPtr = &head;
7421 DCItem *listPtr = head;
7422 DCItem *newListPtr = NULL;
7423 BOOL ret = FALSE;
7424 while (listPtr) {
7425 DCItem *nextPtr = listPtr->next;
7426 if (listPtr->hWnd == hWnd) {
7427 *prevPtrPtr = nextPtr;
7428 listPtr->next = newListPtr;
7429 newListPtr = listPtr;
7430 } else {
7431 prevPtrPtr = &listPtr->next;
7432 }
7433 listPtr = nextPtr;
7434 }
7435 listLock.Leave();
7436 return newListPtr;
7437 }
7438
7439
7440 /**
7441 * Realize palettes of all existing HDC objects
7442 */
7443 void DCList::RealizePalettes(int screen)
7444 {
7445 listLock.Enter();
7446 DCItem *listPtr = head;
7447 while (listPtr) {
7448 AwtWin32GraphicsDevice::RealizePalette(listPtr->hDC, screen);
7449 listPtr = listPtr->next;
7450 }
7451 listLock.Leave();
7452 }
7453
7454 void MoveDCToPassiveList(HDC hDC, HWND hWnd) {
7455 DCItem *removedDC;
7456 if ((removedDC = activeDCList.RemoveDC(hDC, hWnd)) != NULL) {
7457 passiveDCList.AddDCItem(removedDC);
7458 }
7459 }
7460
7461 void ReleaseDCList(HWND hwnd, DCList &list) {
7462 DCItem *removedDCs = list.RemoveAllDCs(hwnd);
7463 while (removedDCs) {
7464 DCItem *tmpDCList = removedDCs;
7465 DASSERT(::GetObjectType(tmpDCList->hDC) == OBJ_DC);
7466 int retValue = ::ReleaseDC(tmpDCList->hWnd, tmpDCList->hDC);
7467 VERIFY(retValue != 0);
7468 if (retValue != 0) {
7469 // Valid ReleaseDC call; need to decrement GDI object counter
7470 AwtGDIObject::Decrement();
7471 }
7472 removedDCs = removedDCs->next;
7473 delete tmpDCList;
7474 }
7475 }
|
1357 AwtToolkit::GetInstance().eventNumber++;
1358
1359 static BOOL ignoreNextLBTNUP = FALSE; //Ignore next LBUTTONUP msg?
1360
1361 lastMessage = message;
1362
1363 if (message == WmAwtIsComponent) {
1364 // special message to identify AWT HWND's without using
1365 // resource hogging ::SetProp
1366 return (LRESULT)TRUE;
1367 }
1368
1369 DWORD curPos = 0;
1370
1371 UINT switchMessage = message;
1372 switch (switchMessage) {
1373 case WM_AWT_GETDC:
1374 {
1375 HDC hDC;
1376 // First, release the DCs scheduled for deletion
1377 ReleaseDCList(passiveDCList);
1378
1379 GetDCReturnStruct *returnStruct = new GetDCReturnStruct;
1380 returnStruct->gdiLimitReached = FALSE;
1381 if (AwtGDIObject::IncrementIfAvailable()) {
1382 hDC = ::GetDCEx(GetHWnd(), NULL,
1383 DCX_CACHE | DCX_CLIPCHILDREN |
1384 DCX_CLIPSIBLINGS);
1385 if (hDC != NULL) {
1386 // Add new DC to list of DC's associated with this Component
1387 activeDCList.AddDC(hDC, GetHWnd());
1388 } else {
1389 // Creation failed; decrement counter in AwtGDIObject
1390 AwtGDIObject::Decrement();
1391 }
1392 } else {
1393 hDC = NULL;
1394 returnStruct->gdiLimitReached = TRUE;
1395 }
1396 returnStruct->hDC = hDC;
1397 retValue = (LRESULT)returnStruct;
1398 mr = mrConsume;
1399 break;
1400 }
1401 case WM_AWT_RELEASEDC:
1402 {
1403 HDC hDC = (HDC)wParam;
1404 MoveDCToPassiveList(hDC, GetHWnd());
1405 ReleaseDCList(passiveDCList);
1406 mr = mrConsume;
1407 break;
1408 }
1409 case WM_AWT_RELEASE_ALL_DCS:
1410 {
1411 // Called during Component destruction. Gets current list of
1412 // DC's associated with Component and releases each DC.
1413 ReleaseDCList(GetHWnd(), activeDCList);
1414 ReleaseDCList(passiveDCList);
1415 mr = mrConsume;
1416 break;
1417 }
1418 case WM_AWT_SHOWCURSOR:
1419 ::ShowCursor(TRUE);
1420 break;
1421 case WM_AWT_HIDECURSOR:
1422 ::ShowCursor(FALSE);
1423 break;
1424 case WM_CREATE: mr = WmCreate(); break;
1425 case WM_CLOSE: mr = WmClose(); break;
1426 case WM_DESTROY: mr = WmDestroy(); break;
1427 case WM_NCDESTROY: mr = WmNcDestroy(); break;
1428
1429 case WM_ERASEBKGND:
1430 mr = WmEraseBkgnd((HDC)wParam, *(BOOL*)&retValue); break;
1431 case WM_PAINT:
1432 CheckFontSmoothingSettings(GetHWnd());
1433 /* Set draw state */
1434 SetDrawState(GetDrawState() | JAWT_LOCK_CLIP_CHANGED);
7419 listLock.Enter();
7420 DCItem **prevPtrPtr = &head;
7421 DCItem *listPtr = head;
7422 DCItem *newListPtr = NULL;
7423 BOOL ret = FALSE;
7424 while (listPtr) {
7425 DCItem *nextPtr = listPtr->next;
7426 if (listPtr->hWnd == hWnd) {
7427 *prevPtrPtr = nextPtr;
7428 listPtr->next = newListPtr;
7429 newListPtr = listPtr;
7430 } else {
7431 prevPtrPtr = &listPtr->next;
7432 }
7433 listPtr = nextPtr;
7434 }
7435 listLock.Leave();
7436 return newListPtr;
7437 }
7438
7439 /**
7440 * Remove all DCs from the DC list. Return the list of those
7441 * DC's to the caller (which will then probably want to
7442 * call ReleaseDC() for the returned DCs).
7443 */
7444 DCItem *DCList::RemoveAllDCs()
7445 {
7446 listLock.Enter();
7447 DCItem *newListPtr = head;
7448 head = NULL;
7449 listLock.Leave();
7450 return newListPtr;
7451 }
7452
7453 /**
7454 * Realize palettes of all existing HDC objects
7455 */
7456 void DCList::RealizePalettes(int screen)
7457 {
7458 listLock.Enter();
7459 DCItem *listPtr = head;
7460 while (listPtr) {
7461 AwtWin32GraphicsDevice::RealizePalette(listPtr->hDC, screen);
7462 listPtr = listPtr->next;
7463 }
7464 listLock.Leave();
7465 }
7466
7467 void MoveDCToPassiveList(HDC hDC, HWND hWnd) {
7468 DCItem *removedDC;
7469 if ((removedDC = activeDCList.RemoveDC(hDC, hWnd)) != NULL) {
7470 passiveDCList.AddDCItem(removedDC);
7471 }
7472 }
7473
7474 static void ReleaseDCList(DCItem *removedDCs) {
7475 while (removedDCs) {
7476 DCItem *tmpDCList = removedDCs;
7477 DASSERT(::GetObjectType(tmpDCList->hDC) == OBJ_DC);
7478 int retValue = ::ReleaseDC(tmpDCList->hWnd, tmpDCList->hDC);
7479 VERIFY(retValue != 0);
7480 if (retValue != 0) {
7481 // Valid ReleaseDC call; need to decrement GDI object counter
7482 AwtGDIObject::Decrement();
7483 }
7484 removedDCs = removedDCs->next;
7485 delete tmpDCList;
7486 }
7487 }
7488
7489 void ReleaseDCList(HWND hwnd, DCList &list) {
7490 ReleaseDCList(list.RemoveAllDCs(hwnd));
7491 }
7492
7493 void ReleaseDCList(DCList &list) {
7494 ReleaseDCList(list.RemoveAllDCs());
7495 }
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