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
38namespace blink {
39
40static const size_t printBufferSize = 100; // large enough for any integer or floating point value in string format, including trailing null character
41
42static 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
50TextStream& TextStream::operator<<(bool b)
51{
52    return *this << (b ? "1" : "0");
53}
54
55TextStream& TextStream::operator<<(int i)
56{
57    m_text.appendNumber(i);
58    return *this;
59}
60
61TextStream& TextStream::operator<<(unsigned i)
62{
63    m_text.appendNumber(i);
64    return *this;
65}
66
67TextStream& TextStream::operator<<(long i)
68{
69    m_text.appendNumber(i);
70    return *this;
71}
72
73TextStream& TextStream::operator<<(unsigned long i)
74{
75    m_text.appendNumber(i);
76    return *this;
77}
78
79TextStream& TextStream::operator<<(long long i)
80{
81    m_text.appendNumber(i);
82    return *this;
83}
84
85TextStream& TextStream::operator<<(unsigned long long i)
86{
87    m_text.appendNumber(i);
88    return *this;
89}
90
91TextStream& TextStream::operator<<(float f)
92{
93    m_text.append(String::numberToStringFixedWidth(f, 2));
94    return *this;
95}
96
97TextStream& TextStream::operator<<(double d)
98{
99    m_text.append(String::numberToStringFixedWidth(d, 2));
100    return *this;
101}
102
103TextStream& TextStream::operator<<(const char* string)
104{
105    m_text.append(string);
106    return *this;
107}
108
109TextStream& TextStream::operator<<(const void* p)
110{
111    char buffer[printBufferSize];
112    snprintf(buffer, sizeof(buffer) - 1, "%p", p);
113    return *this << buffer;
114}
115
116TextStream& TextStream::operator<<(const String& string)
117{
118    m_text.append(string);
119    return *this;
120}
121
122TextStream& 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
131String TextStream::release()
132{
133    String result = m_text.toString();
134    m_text.clear();
135    return result;
136}
137
138TextStream& operator<<(TextStream& ts, const IntRect& r)
139{
140    return ts << "at (" << r.x() << "," << r.y() << ") size " << r.width() << "x" << r.height();
141}
142
143TextStream& operator<<(TextStream& ts, const IntPoint& p)
144{
145    return ts << "(" << p.x() << "," << p.y() << ")";
146}
147
148TextStream& 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
156TextStream& 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
163TextStream& 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
172void writeIndent(TextStream& ts, int indent)
173{
174    for (int i = 0; i != indent; ++i)
175        ts << "  ";
176}
177
178}
179