third_party/WebKit/public/platform/WebFloatSize.h

   1 /*
   2  * Copyright (C) 2013 Google Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  *     * Redistributions of source code must retain the above copyright
   9  * notice, this list of conditions and the following disclaimer.
  10  *     * Redistributions in binary form must reproduce the above
  11  * copyright notice, this list of conditions and the following disclaimer
  12  * in the documentation and/or other materials provided with the
  13  * distribution.
  14  *     * Neither the name of Google Inc. nor the names of its
  15  * contributors may be used to endorse or promote products derived from
  16  * this software without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31 #ifndef WebFloatSize_h
  32 #define WebFloatSize_h
  33
  34 #include "WebCommon.h"
  35
  36 #include <algorithm>
  37
  38 #if INSIDE_BLINK
  39 #include "platform/geometry/FloatSize.h"
  40 #else
  41 #include <cmath>
  42 #include <ui/gfx/geometry/size_f.h>
  43 #include <ui/gfx/geometry/vector2d_f.h>
  44 #endif
  45
  46 namespace blink {
  47
  48 struct WebFloatSize {
  49     float width;
  50     float height;
  51
  52     bool isEmpty() const { return width <= 0 || height <= 0; }
  53
  54     WebFloatSize()
  55         : width(0)
  56         , height(0)
  57     {
  58     }
  59
  60     WebFloatSize(float width, float height)
  61         : width(width)
  62         , height(height)
  63     {
  64     }
  65
  66 #if INSIDE_BLINK
  67     WebFloatSize(const FloatSize& s)
  68         : width(s.width())
  69         , height(s.height())
  70     {
  71     }
  72
  73     WebFloatSize& operator=(const FloatSize& s)
  74     {
  75         width = s.width();
  76         height = s.height();
  77         return *this;
  78     }
  79
  80     operator FloatSize() const
  81     {
  82         return FloatSize(width, height);
  83     }
  84 #else
  85     WebFloatSize(const gfx::SizeF& s)
  86         : width(s.width())
  87         , height(s.height())
  88     {
  89     }
  90
  91     WebFloatSize(const gfx::Vector2dF& v)
  92         : width(v.x())
  93         , height(v.y())
  94     {
  95     }
  96
  97     WebFloatSize& operator=(const gfx::SizeF& s)
  98     {
  99         width = s.width();
 100         height = s.height();
 101         return *this;
 102     }
 103
 104     WebFloatSize& operator=(const gfx::Vector2dF& v)
 105     {
 106         width = v.x();
 107         height = v.y();
 108         return *this;
 109     }
 110
 111     operator gfx::SizeF() const
 112     {
 113         return gfx::SizeF(std::max(0.f, width), std::max(0.f, height));
 114     }
 115
 116     operator gfx::Vector2dF() const
 117     {
 118         return gfx::Vector2dF(width, height);
 119     }
 120 #endif
 121 };
 122
 123 inline bool operator==(const WebFloatSize& a, const WebFloatSize& b)
 124 {
 125     return a.width == b.width && a.height == b.height;
 126 }
 127
 128 inline bool operator!=(const WebFloatSize& a, const WebFloatSize& b)
 129 {
 130     return !(a == b);
 131 }
 132
 133 } // namespace blink
 134
 135 #endif