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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_PaintTracker_h
#define mozilla_PaintTracker_h
#include "nscore.h"
#include "nsDebug.h"
namespace mozilla {
class NS_STACK_CLASS PaintTracker
{
public:
PaintTracker() {
++gPaintTracker;
}
~PaintTracker() {
NS_ASSERTION(gPaintTracker > 0, "Mismatched constructor/destructor");
--gPaintTracker;
}
static bool IsPainting() {
return !!gPaintTracker;
}
private:
static int gPaintTracker;
};
} // namespace mozilla
#endif // mozilla_PaintTracker_h