third_party/WebKit/public/platform/WebFloatRect.h

   1 /*
   2  * Copyright (C) 2010 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 WebFloatRect_h
  32 #define WebFloatRect_h
  33
  34 #include "WebCommon.h"
  35
  36 #if INSIDE_BLINK
  37 #include "platform/geometry/FloatRect.h"
  38 #else
  39 #include <algorithm>
  40 #include <cmath>
  41 #include <ui/gfx/geometry/rect_f.h>
  42 #endif
  43
  44 namespace blink {
  45
  46 struct WebFloatRect {
  47     float x;
  48     float y;
  49     float width;
  50     float height;
  51
  52     bool isEmpty() const { return width <= 0 || height <= 0; }
  53
  54     WebFloatRect()
  55         : x(0)
  56         , y(0)
  57         , width(0)
  58         , height(0)
  59     {
  60     }
  61
  62     WebFloatRect(float x, float y, float width, float height)
  63         : x(x)
  64         , y(y)
  65         , width(width)
  66         , height(height)
  67     {
  68     }
  69
  70 #if INSIDE_BLINK
  71     WebFloatRect(const FloatRect& r)
  72         : x(r.x())
  73         , y(r.y())
  74         , width(r.width())
  75         , height(r.height())
  76     {
  77     }
  78
  79     WebFloatRect& operator=(const FloatRect& r)
  80     {
  81         x = r.x();
  82         y = r.y();
  83         width = r.width();
  84         height = r.height();
  85         return *this;
  86     }
  87
  88     operator FloatRect() const
  89     {
  90         return FloatRect(x, y, width, height);
  91     }
  92 #else
  93     WebFloatRect(const gfx::RectF& r)
  94         : x(r.x())
  95         , y(r.y())
  96         , width(r.width())
  97         , height(r.height())
  98     {
  99     }
 100
 101     WebFloatRect& operator=(const gfx::RectF& r)
 102     {
 103         x = r.x();
 104         y = r.y();
 105         width = r.width();
 106         height = r.height();
 107         return *this;
 108     }
 109
 110     operator gfx::RectF() const
 111     {
 112         return gfx::RectF(x, y, std::max(0.0f, width), std::max(0.0f, height));
 113     }
 114 #endif
 115 };
 116
 117 inline bool operator==(const WebFloatRect& a, const WebFloatRect& b)
 118 {
 119     return a.x == b.x && a.y == b.y && a.width == b.width && a.height == b.height;
 120 }
 121
 122 inline bool operator!=(const WebFloatRect& a, const WebFloatRect& b)
 123 {
 124     return !(a == b);
 125 }
 126
 127 } // namespace blink
 128
 129 #endif