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35 lines
700 B
C++
35 lines
700 B
C++
/* 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_PaintTracker_h
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#define mozilla_PaintTracker_h
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#include "nscore.h"
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#include "nsDebug.h"
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namespace mozilla {
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class NS_STACK_CLASS PaintTracker
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{
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public:
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PaintTracker() {
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++gPaintTracker;
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}
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~PaintTracker() {
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NS_ASSERTION(gPaintTracker > 0, "Mismatched constructor/destructor");
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--gPaintTracker;
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}
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static bool IsPainting() {
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return !!gPaintTracker;
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}
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private:
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static int gPaintTracker;
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};
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} // namespace mozilla
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#endif // mozilla_PaintTracker_h
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