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_GEOMETRY_SIZE_F_H_
6 #define UI_GFX_GEOMETRY_SIZE_F_H_
7
8 #include <iosfwd>
9 #include <string>
10
11 #include "base/compiler_specific.h"
12 #include "ui/gfx/geometry/size_base.h"
13 #include "ui/gfx/gfx_export.h"
14
15 namespace gfx {
16
17 // A floating version of gfx::Size.
18 class GFX_EXPORT SizeF : public SizeBase<SizeF, float> {
19 public:
SizeF()20 SizeF() : SizeBase<SizeF, float>(0, 0) {}
SizeF(float width,float height)21 SizeF(float width, float height) : SizeBase<SizeF, float>(width, height) {}
~SizeF()22 ~SizeF() {}
23
Scale(float scale)24 void Scale(float scale) {
25 Scale(scale, scale);
26 }
27
Scale(float x_scale,float y_scale)28 void Scale(float x_scale, float y_scale) {
29 SetSize(width() * x_scale, height() * y_scale);
30 }
31
32 std::string ToString() const;
33 };
34
35 inline bool operator==(const SizeF& lhs, const SizeF& rhs) {
36 return lhs.width() == rhs.width() && lhs.height() == rhs.height();
37 }
38
39 inline bool operator!=(const SizeF& lhs, const SizeF& rhs) {
40 return !(lhs == rhs);
41 }
42
43 GFX_EXPORT SizeF ScaleSize(const SizeF& p, float x_scale, float y_scale);
44
ScaleSize(const SizeF & p,float scale)45 inline SizeF ScaleSize(const SizeF& p, float scale) {
46 return ScaleSize(p, scale, scale);
47 }
48
49 #if !defined(COMPILER_MSVC) && !defined(__native_client__)
50 extern template class SizeBase<SizeF, float>;
51 #endif
52
53 // This is declared here for use in gtest-based unit tests but is defined in
54 // the gfx_test_support target. Depend on that to use this in your unit test.
55 // This should not be used in production code - call ToString() instead.
56 void PrintTo(const SizeF& size, ::std::ostream* os);
57
58 } // namespace gfx
59
60 #endif // UI_GFX_GEOMETRY_SIZE_F_H_
61