layout/base/PaintTracker.h

branch
TOR_BUG_9701
changeset 15
b8a032363ba2
equal deleted inserted replaced
-1:000000000000 0:dc5433fde610
1 /* This Source Code Form is subject to the terms of the Mozilla Public
2 * License, v. 2.0. If a copy of the MPL was not distributed with this
3 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
4
5 #ifndef mozilla_PaintTracker_h
6 #define mozilla_PaintTracker_h
7
8 #include "mozilla/Attributes.h"
9 #include "nsDebug.h"
10
11 namespace mozilla {
12
13 class MOZ_STACK_CLASS PaintTracker
14 {
15 public:
16 PaintTracker() {
17 ++gPaintTracker;
18 }
19 ~PaintTracker() {
20 NS_ASSERTION(gPaintTracker > 0, "Mismatched constructor/destructor");
21 --gPaintTracker;
22 }
23
24 static bool IsPainting() {
25 return !!gPaintTracker;
26 }
27
28 private:
29 static int gPaintTracker;
30 };
31
32 } // namespace mozilla
33
34 #endif // mozilla_PaintTracker_h

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