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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_SIZE_F_H_
#define UI_GFX_SIZE_F_H_
#pragma once
#include <string>
#include "build/build_config.h"
#include "ui/base/ui_export.h"
#if !defined(ENABLE_DIP)
#error "This class should be used only when DIP feature is enabled"
#endif
namespace gfx {
// A floating versino of gfx::Size. This is copied, instead of using
// template, to avoid conflict with m19 branch.
// TODO(oshima): Merge this to ui/gfx/size.h using template.
class UI_EXPORT SizeF {
public:
SizeF();
SizeF(float width, float height);
~SizeF();
float width() const { return width_; }
float height() const { return height_; }
float GetArea() const { return width_ * height_; }
void SetSize(float width, float height) {
set_width(width);
set_height(height);
}
void Enlarge(float width, float height) {
set_width(width_ + width);
set_height(height_ + height);
}
void set_width(float width);
void set_height(float height);
bool operator==(const SizeF& s) const {
return width_ == s.width_ && height_ == s.height_;
}
bool operator!=(const SizeF& s) const {
return !(*this == s);
}
bool IsEmpty() const {
// Size doesn't allow negative dimensions, so testing for 0 is enough.
return (width_ == 0) || (height_ == 0);
}
std::string ToString() const;
private:
float width_;
float height_;
};
} // namespace gfx
#endif // UI_GFX_SIZE_F_H_
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