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// Copyright (c) 2012 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_INSETS_F_H_
#define UI_GFX_INSETS_F_H_
#pragma once
#include <string>
#include "build/build_config.h"
#include "ui/base/ui_export.h"
namespace gfx {
// A floating versino of gfx::Insets. This is copied, instead of using
// template, to avoid conflict with m19 branch.
// TODO(oshima): Merge this to ui/gfx/insets.h using template.
class UI_EXPORT InsetsF {
public:
InsetsF() : top_(0), left_(0), bottom_(0), right_(0) {}
InsetsF(float top, float left, float bottom, float right)
: top_(top),
left_(left),
bottom_(bottom),
right_(right) {}
~InsetsF() {}
float top() const { return top_; }
float left() const { return left_; }
float bottom() const { return bottom_; }
float right() const { return right_; }
// Returns the total width taken up by the insets, which is the sum of the
// left and right insets.
float width() const { return left_ + right_; }
// Returns the total height taken up by the insets, which is the sum of the
// top and bottom insets.
float height() const { return top_ + bottom_; }
// Returns true if the insets are empty.
bool empty() const { return width() == 0 && height() == 0; }
void Set(float top, float left, float bottom, float right) {
top_ = top;
left_ = left;
bottom_ = bottom;
right_ = right;
}
bool operator==(const InsetsF& insets) const {
return top_ == insets.top_ && left_ == insets.left_ &&
bottom_ == insets.bottom_ && right_ == insets.right_;
}
bool operator!=(const InsetsF& insets) const {
return !(*this == insets);
}
InsetsF& operator+=(const InsetsF& insets) {
top_ += insets.top_;
left_ += insets.left_;
bottom_ += insets.bottom_;
right_ += insets.right_;
return *this;
}
InsetsF operator-() const {
return InsetsF(-top_, -left_, -bottom_, -right_);
}
// Returns a string representation of the insets.
std::string ToString() const;
private:
float top_;
float left_;
float bottom_;
float right_;
};
} // namespace gfx
#endif // UI_GFX_INSETS_F_H_
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