1 /* 2 * Copyright (C) 2003, 2006 Apple Computer, Inc. All rights reserved. 3 * Copyright (C) 2005 Nokia. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include "config.h" 28 #include "platform/geometry/FloatSize.h" 29 30 #include "platform/FloatConversion.h" 31 #include "platform/geometry/IntSize.h" 32 #include "platform/geometry/LayoutSize.h" 33 #include <limits> 34 #include <math.h> 35 36 using namespace std; 37 38 namespace WebCore { 39 40 FloatSize::FloatSize(const LayoutSize& size) 41 : m_width(size.width().toFloat()) 42 , m_height(size.height().toFloat()) 43 { 44 } 45 46 float FloatSize::diagonalLength() const 47 { 48 return sqrtf(diagonalLengthSquared()); 49 } 50 51 bool FloatSize::isZero() const 52 { 53 return fabs(m_width) < numeric_limits<float>::epsilon() && fabs(m_height) < numeric_limits<float>::epsilon(); 54 } 55 56 bool FloatSize::isExpressibleAsIntSize() const 57 { 58 return isWithinIntRange(m_width) && isWithinIntRange(m_height); 59 } 60 61 FloatSize FloatSize::narrowPrecision(double width, double height) 62 { 63 return FloatSize(narrowPrecisionToFloat(width), narrowPrecisionToFloat(height)); 64 } 65 66 } 67
