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// Copyright 2014 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 UI_GFX_SELECTION_BOUND_H_
#define UI_GFX_SELECTION_BOUND_H_
#include "ui/gfx/geometry/point.h"
#include "ui/gfx/geometry/point_f.h"
#include "ui/gfx/gfx_export.h"
namespace gfx {
class Rect;
class RectF;
// Bound of a selection end-point.
class GFX_EXPORT SelectionBound {
public:
enum Type { LEFT, RIGHT, CENTER, EMPTY, LAST = EMPTY };
SelectionBound();
SelectionBound(const SelectionBound& other);
~SelectionBound();
Type type() const { return type_; }
void set_type(Type value) { type_ = value; }
const gfx::PointF& edge_start() const { return edge_start_; }
const gfx::PointF& visible_edge_start() const { return visible_edge_start_; }
const gfx::Point& edge_start_rounded() const { return edge_start_rounded_; }
void SetEdgeStart(const gfx::PointF& value);
void SetVisibleEdgeStart(const gfx::PointF& value);
const gfx::PointF& edge_end() const { return edge_end_; }
const gfx::PointF& visible_edge_end() const { return visible_edge_end_; }
const gfx::Point& edge_end_rounded() const { return edge_end_rounded_; }
void SetEdgeEnd(const gfx::PointF& value);
void SetVisibleEdgeEnd(const gfx::PointF& value);
void SetEdge(const gfx::PointF& start, const gfx::PointF& end);
void SetVisibleEdge(const gfx::PointF& start, const gfx::PointF& end);
bool visible() const { return visible_; }
void set_visible(bool value) { visible_ = value; }
// Returns the vertical difference between rounded start and end.
int GetHeight() const;
std::string ToString() const;
private:
Type type_;
// The actual bounds of a selection end-point mgiht be invisible for
// occlusion.
gfx::PointF edge_start_;
gfx::PointF edge_end_;
// The visible bounds of a selection, which are equal to the above, when there
// is no occlusion.
gfx::PointF visible_edge_start_;
gfx::PointF visible_edge_end_;
gfx::Point edge_start_rounded_;
gfx::Point edge_end_rounded_;
bool visible_;
};
GFX_EXPORT bool operator==(const SelectionBound& lhs,
const SelectionBound& rhs);
GFX_EXPORT bool operator!=(const SelectionBound& lhs,
const SelectionBound& rhs);
GFX_EXPORT gfx::Rect RectBetweenSelectionBounds(const SelectionBound& b1,
const SelectionBound& b2);
GFX_EXPORT gfx::RectF RectFBetweenSelectionBounds(const SelectionBound& b1,
const SelectionBound& b2);
GFX_EXPORT gfx::RectF RectFBetweenVisibleSelectionBounds(
const SelectionBound& b1,
const SelectionBound& b2);
} // namespace ui
#endif // UI_GFX_SELECTION_BOUND_H_
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