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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef MASH_WM_FRAME_HEADER_PAINTER_H_
#define MASH_WM_FRAME_HEADER_PAINTER_H_
namespace gfx {
class Canvas;
}
namespace mash {
namespace wm {
// Helper class for painting the window header.
// TODO(sky): keep this only if we're going to actually need different
// subclasses.
class HeaderPainter {
public:
enum Mode { MODE_ACTIVE, MODE_INACTIVE };
virtual ~HeaderPainter() {}
// Returns the header's minimum width.
virtual int GetMinimumHeaderWidth() const = 0;
// Paints the header.
virtual void PaintHeader(gfx::Canvas* canvas, Mode mode) = 0;
// Performs layout for the header.
virtual void LayoutHeader() = 0;
// Get the height of the header.
virtual int GetHeaderHeight() const = 0;
// Gets / sets how much of the header is painted. This allows the header to
// paint under things (like the tabstrip) which have transparent /
// non-painting sections. This height does not affect LayoutHeader().
virtual int GetHeaderHeightForPainting() const = 0;
virtual void SetHeaderHeightForPainting(int height_for_painting) = 0;
// Schedule a re-paint of the entire title.
virtual void SchedulePaintForTitle() = 0;
// Updates the x inset of the leftmost view in the header.
virtual void UpdateLeftViewXInset(int left_view_x_inset) = 0;
};
} // namespace wm
} // namespace mash
#endif // MASH_WM_FRAME_HEADER_PAINTER_H_
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