| /* |
| * Copyright (c) 1996, 2005, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| #include "awt_Brush.h" |
| |
| GDIHashtable AwtBrush::cache("Brush cache", DeleteAwtBrush); |
| |
| AwtBrush::AwtBrush(COLORREF color) { |
| if (!EnsureGDIObjectAvailability()) { |
| // If we've run out of GDI objects, don't try to create |
| // a new one |
| return; |
| } |
| SetColor(color); |
| HBRUSH brush = ::CreateSolidBrush(color); |
| /* |
| * Fix for BugTraq ID 4191297. |
| * If GDI resource creation failed flush all GDIHashtables |
| * to destroy unreferenced GDI resources. |
| */ |
| if (brush == NULL) { |
| cache.flushAll(); |
| brush = ::CreateSolidBrush(color); |
| } |
| DASSERT(brush != NULL); |
| SetHandle(brush); |
| if (brush == NULL) { |
| // We've already incremented the counter: decrement if |
| // creation failed |
| Decrement(); |
| } |
| } |
| |
| AwtBrush* AwtBrush::Get(COLORREF color) { |
| |
| CriticalSection::Lock l(cache.getManagerLock()); |
| |
| AwtBrush* obj = static_cast<AwtBrush*>(cache.get( |
| reinterpret_cast<void*>(static_cast<INT_PTR>(color)))); |
| if (obj == NULL) { |
| obj = new AwtBrush(color); |
| VERIFY(cache.put(reinterpret_cast<void*>( |
| static_cast<INT_PTR>(color)), obj) == NULL); |
| } |
| obj->IncrRefCount(); |
| return obj; |
| } |
| |
| void AwtBrush::ReleaseInCache() { |
| |
| CriticalSection::Lock l(cache.getManagerLock()); |
| |
| if (DecrRefCount() == 0) { |
| cache.release(reinterpret_cast<void*>( |
| static_cast<INT_PTR>(GetColor()))); |
| } |
| } |
| |
| void AwtBrush::DeleteAwtBrush(void* pBrush) { |
| delete (AwtBrush*)pBrush; |
| } |