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84 lines
2.9 KiB
C++
84 lines
2.9 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef MOZILLA_GFX_REFPTRSKIA_H_
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#define MOZILLA_GFX_REFPTRSKIA_H_
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namespace mozilla {
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namespace gfx {
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// The following class was imported from Skia, which is under the
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// following licence:
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//
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// Copyright (c) 2011 Google Inc. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived from
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// this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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template <typename T> class RefPtrSkia {
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public:
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RefPtrSkia() : fObj(NULL) {}
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explicit RefPtrSkia(T* obj) : fObj(obj) { SkSafeRef(fObj); }
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RefPtrSkia(const RefPtrSkia& o) : fObj(o.fObj) { SkSafeRef(fObj); }
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~RefPtrSkia() { SkSafeUnref(fObj); }
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RefPtrSkia& operator=(const RefPtrSkia& rp) {
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SkRefCnt_SafeAssign(fObj, rp.fObj);
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return *this;
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}
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RefPtrSkia& operator=(T* obj) {
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SkRefCnt_SafeAssign(fObj, obj);
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return *this;
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}
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T* get() const { return fObj; }
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T& operator*() const { return *fObj; }
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T* operator->() const { return fObj; }
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RefPtrSkia& adopt(T* obj) {
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SkSafeUnref(fObj);
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fObj = obj;
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return *this;
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}
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typedef T* RefPtrSkia::*unspecified_bool_type;
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operator unspecified_bool_type() const {
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return fObj ? &RefPtrSkia::fObj : NULL;
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}
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private:
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T* fObj;
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};
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// End of code imported from Skia.
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} // namespace gfx
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} // namespace mozilla
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#endif /* MOZILLA_GFX_REFPTRSKIA_H_ */
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