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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 "mozilla/Attributes.h"
#include "nsDebug.h"
namespace mozilla {
class MOZ_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
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