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: 20 SizeF() : SizeBase<SizeF, float>(0, 0) {} 21 SizeF(float width, float height) : SizeBase<SizeF, float>(width, height) {} 22 ~SizeF() {} 23 24 void Scale(float scale) { 25 Scale(scale, scale); 26 } 27 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 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
