1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #ifndef UI_GFX_SIZE_F_H_
6 #define UI_GFX_SIZE_F_H_
7
8 #include <string>
9
10 #include "base/compiler_specific.h"
11 #include "ui/gfx/gfx_export.h"
12 #include "ui/gfx/size_base.h"
13
14 namespace gfx {
15
16 // A floating version of gfx::Size.
17 class GFX_EXPORT SizeF : public SizeBase<SizeF, float> {
18 public:
SizeF()19 SizeF() : SizeBase<SizeF, float>(0, 0) {}
SizeF(float width,float height)20 SizeF(float width, float height) : SizeBase<SizeF, float>(width, height) {}
~SizeF()21 ~SizeF() {}
22
Scale(float scale)23 void Scale(float scale) {
24 Scale(scale, scale);
25 }
26
Scale(float x_scale,float y_scale)27 void Scale(float x_scale, float y_scale) {
28 SetSize(width() * x_scale, height() * y_scale);
29 }
30
31 std::string ToString() const;
32 };
33
34 inline bool operator==(const SizeF& lhs, const SizeF& rhs) {
35 return lhs.width() == rhs.width() && lhs.height() == rhs.height();
36 }
37
38 inline bool operator!=(const SizeF& lhs, const SizeF& rhs) {
39 return !(lhs == rhs);
40 }
41
42 GFX_EXPORT SizeF ScaleSize(const SizeF& p, float x_scale, float y_scale);
43
ScaleSize(const SizeF & p,float scale)44 inline SizeF ScaleSize(const SizeF& p, float scale) {
45 return ScaleSize(p, scale, scale);
46 }
47
48 #if !defined(COMPILER_MSVC)
49 extern template class SizeBase<SizeF, float>;
50 #endif
51
52 } // namespace gfx
53
54 #endif // UI_GFX_SIZE_F_H_
55