1 /* 2 * Copyright (C) 2004, 2008, 2010 Apple 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 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #include "config.h" 27 #include "platform/text/TextStream.h" 28 29 #include "platform/geometry/FloatPoint.h" 30 #include "platform/geometry/FloatRect.h" 31 #include "platform/geometry/FloatSize.h" 32 #include "platform/geometry/IntPoint.h" 33 #include "platform/geometry/IntRect.h" 34 #include "wtf/MathExtras.h" 35 #include "wtf/StringExtras.h" 36 #include "wtf/text/WTFString.h" 37 38 namespace blink { 39 40 static const size_t printBufferSize = 100; // large enough for any integer or floating point value in string format, including trailing null character 41 42 static inline bool hasFractions(double val) 43 { 44 static const double s_epsilon = 0.0001; 45 int ival = static_cast<int>(val); 46 double dval = static_cast<double>(ival); 47 return fabs(val - dval) > s_epsilon; 48 } 49 50 TextStream& TextStream::operator<<(bool b) 51 { 52 return *this << (b ? "1" : "0"); 53 } 54 55 TextStream& TextStream::operator<<(int i) 56 { 57 m_text.appendNumber(i); 58 return *this; 59 } 60 61 TextStream& TextStream::operator<<(unsigned i) 62 { 63 m_text.appendNumber(i); 64 return *this; 65 } 66 67 TextStream& TextStream::operator<<(long i) 68 { 69 m_text.appendNumber(i); 70 return *this; 71 } 72 73 TextStream& TextStream::operator<<(unsigned long i) 74 { 75 m_text.appendNumber(i); 76 return *this; 77 } 78 79 TextStream& TextStream::operator<<(long long i) 80 { 81 m_text.appendNumber(i); 82 return *this; 83 } 84 85 TextStream& TextStream::operator<<(unsigned long long i) 86 { 87 m_text.appendNumber(i); 88 return *this; 89 } 90 91 TextStream& TextStream::operator<<(float f) 92 { 93 m_text.append(String::numberToStringFixedWidth(f, 2)); 94 return *this; 95 } 96 97 TextStream& TextStream::operator<<(double d) 98 { 99 m_text.append(String::numberToStringFixedWidth(d, 2)); 100 return *this; 101 } 102 103 TextStream& TextStream::operator<<(const char* string) 104 { 105 m_text.append(string); 106 return *this; 107 } 108 109 TextStream& TextStream::operator<<(const void* p) 110 { 111 char buffer[printBufferSize]; 112 snprintf(buffer, sizeof(buffer) - 1, "%p", p); 113 return *this << buffer; 114 } 115 116 TextStream& TextStream::operator<<(const String& string) 117 { 118 m_text.append(string); 119 return *this; 120 } 121 122 TextStream& TextStream::operator<<(const FormatNumberRespectingIntegers& numberToFormat) 123 { 124 if (hasFractions(numberToFormat.value)) 125 return *this << numberToFormat.value; 126 127 m_text.appendNumber(static_cast<int>(numberToFormat.value)); 128 return *this; 129 } 130 131 String TextStream::release() 132 { 133 String result = m_text.toString(); 134 m_text.clear(); 135 return result; 136 } 137 138 TextStream& operator<<(TextStream& ts, const IntRect& r) 139 { 140 return ts << "at (" << r.x() << "," << r.y() << ") size " << r.width() << "x" << r.height(); 141 } 142 143 TextStream& operator<<(TextStream& ts, const IntPoint& p) 144 { 145 return ts << "(" << p.x() << "," << p.y() << ")"; 146 } 147 148 TextStream& operator<<(TextStream& ts, const FloatPoint& p) 149 { 150 ts << "(" << TextStream::FormatNumberRespectingIntegers(p.x()); 151 ts << "," << TextStream::FormatNumberRespectingIntegers(p.y()); 152 ts << ")"; 153 return ts; 154 } 155 156 TextStream& operator<<(TextStream& ts, const FloatSize& s) 157 { 158 ts << "width=" << TextStream::FormatNumberRespectingIntegers(s.width()); 159 ts << " height=" << TextStream::FormatNumberRespectingIntegers(s.height()); 160 return ts; 161 } 162 163 TextStream& operator<<(TextStream& ts, const FloatRect& r) 164 { 165 ts << "at (" << TextStream::FormatNumberRespectingIntegers(r.x()); 166 ts << "," << TextStream::FormatNumberRespectingIntegers(r.y()); 167 ts << ") size " << TextStream::FormatNumberRespectingIntegers(r.width()); 168 ts << "x" << TextStream::FormatNumberRespectingIntegers(r.height()); 169 return ts; 170 } 171 172 void writeIndent(TextStream& ts, int indent) 173 { 174 for (int i = 0; i != indent; ++i) 175 ts << " "; 176 } 177 178 } 179