mirror of https://github.com/roytam1/UXP
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
37 lines
1.2 KiB
37 lines
1.2 KiB
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- |
|
* |
|
* 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_WIDGET_WINDOW_SURFACE_H |
|
#define _MOZILLA_WIDGET_WINDOW_SURFACE_H |
|
|
|
#include "mozilla/gfx/2D.h" |
|
#include "Units.h" |
|
|
|
namespace mozilla { |
|
namespace widget { |
|
|
|
// A class for drawing to double-buffered windows. |
|
class WindowSurface { |
|
public: |
|
virtual ~WindowSurface() {} |
|
|
|
// Locks a region of the window for drawing, returning a draw target |
|
// capturing the bounds of the provided region. |
|
// Implementations must permit invocation from any thread. |
|
virtual already_AddRefed<gfx::DrawTarget> Lock(const LayoutDeviceIntRegion& aRegion) = 0; |
|
|
|
// Swaps the provided invalid region from the back buffer to the window. |
|
// Implementations must permit invocation from any thread. |
|
virtual void Commit(const LayoutDeviceIntRegion& aInvalidRegion) = 0; |
|
|
|
// Whether the window surface represents a fallback method. |
|
virtual bool IsFallback() const { return false; } |
|
}; |
|
|
|
} // namespace widget |
|
} // namespace mozilla |
|
|
|
#endif // _MOZILLA_WIDGET_WINDOW_SURFACE_H
|
|
|