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      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/size_f.h>
     43 #include <ui/gfx/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 WebCore::FloatSize& s)
     68         : width(s.width())
     69         , height(s.height())
     70     {
     71     }
     72 
     73     WebFloatSize& operator=(const WebCore::FloatSize& s)
     74     {
     75         width = s.width();
     76         height = s.height();
     77         return *this;
     78     }
     79 
     80     operator WebCore::FloatSize() const
     81     {
     82         return WebCore::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
    136