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cf447356 GL |
1 | ///////////////////////////////////////////////////////////////////////////// |
2 | // Name: datstrm.cpp | |
3 | // Purpose: Data stream classes | |
4 | // Author: Guilhem Lavaux | |
5 | // Modified by: | |
6 | // Created: 28/06/98 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) Guilhem Lavaux | |
9 | // Licence: wxWindows license | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | #ifdef __GNUG__ | |
13 | #pragma implementation "datstrm.h" | |
14 | #endif | |
15 | ||
16 | // For compilers that support precompilation, includes "wx.h". | |
17 | #include "wx/wxprec.h" | |
18 | ||
19 | #ifdef __BORLANDC__ | |
ce4169a4 | 20 | #pragma hdrstop |
cf447356 GL |
21 | #endif |
22 | ||
23 | #ifndef WX_PRECOMP | |
ce4169a4 | 24 | #include "wx/defs.h" |
cf447356 GL |
25 | #endif |
26 | ||
ce4169a4 RR |
27 | #if wxUSE_STREAMS |
28 | ||
cf447356 | 29 | #include "wx/datstrm.h" |
3cacae09 | 30 | |
f4ada568 GL |
31 | // --------------------------------------------------------------------------- |
32 | // wxDataInputStream | |
33 | // --------------------------------------------------------------------------- | |
34 | ||
3d4c6a21 GL |
35 | wxDataInputStream::wxDataInputStream(wxInputStream& s) |
36 | : wxFilterInputStream(s) | |
cf447356 | 37 | { |
cf447356 GL |
38 | } |
39 | ||
3d4c6a21 | 40 | wxDataInputStream::~wxDataInputStream() |
cf447356 | 41 | { |
cf447356 GL |
42 | } |
43 | ||
3d4c6a21 | 44 | unsigned long wxDataInputStream::Read32() |
cf447356 GL |
45 | { |
46 | char buf[4]; | |
47 | ||
3d4c6a21 | 48 | Read(buf, 4); |
cf447356 GL |
49 | |
50 | return (unsigned long)buf[0] | | |
51 | ((unsigned long)buf[1] << 8) | | |
52 | ((unsigned long)buf[2] << 16) | | |
53 | ((unsigned long)buf[3] << 24); | |
54 | } | |
55 | ||
3d4c6a21 | 56 | unsigned short wxDataInputStream::Read16() |
cf447356 GL |
57 | { |
58 | char buf[2]; | |
59 | ||
3d4c6a21 | 60 | Read(buf, 2); |
cf447356 GL |
61 | |
62 | return (unsigned short)buf[0] | | |
63 | ((unsigned short)buf[1] << 8); | |
64 | } | |
65 | ||
3d4c6a21 | 66 | unsigned char wxDataInputStream::Read8() |
cf447356 GL |
67 | { |
68 | char buf; | |
69 | ||
3d4c6a21 | 70 | Read(&buf, 1); |
cf447356 GL |
71 | return (unsigned char)buf; |
72 | } | |
73 | ||
5260b1c5 JS |
74 | // Must be at global scope for VC++ 5 |
75 | extern "C" double ConvertFromIeeeExtended(const unsigned char *bytes); | |
76 | ||
3d4c6a21 | 77 | double wxDataInputStream::ReadDouble() |
cf447356 | 78 | { |
47d67540 | 79 | #if wxUSE_APPLE_IEEE |
cf447356 GL |
80 | char buf[10]; |
81 | ||
3d4c6a21 | 82 | Read(buf, 10); |
cf447356 GL |
83 | return ConvertFromIeeeExtended((unsigned char *)buf); |
84 | #else | |
85 | return 0.0; | |
86 | #endif | |
87 | } | |
88 | ||
3d4c6a21 | 89 | wxString wxDataInputStream::ReadLine() |
cf447356 | 90 | { |
6d44bf31 GL |
91 | char c, last_endl = 0; |
92 | bool end_line = FALSE; | |
93 | wxString line; | |
94 | ||
95 | while (!end_line) { | |
96 | c = GetC(); | |
97 | switch (c) { | |
98 | case '\n': | |
99 | end_line = TRUE; | |
100 | break; | |
101 | case '\r': | |
102 | last_endl = '\r'; | |
103 | break; | |
104 | default: | |
105 | if (last_endl == '\r') { | |
106 | end_line = TRUE; | |
107 | InputStreamBuffer()->WriteBack(c); | |
108 | break; | |
109 | } | |
110 | line += c; | |
111 | break; | |
112 | } | |
113 | } | |
114 | return line; | |
cf447356 GL |
115 | } |
116 | ||
3d4c6a21 | 117 | wxString wxDataInputStream::ReadString() |
eafc087e GL |
118 | { |
119 | wxString wx_string; | |
120 | char *string; | |
121 | unsigned long len; | |
122 | ||
eafc087e GL |
123 | len = Read32(); |
124 | string = new char[len+1]; | |
125 | ||
3d4c6a21 | 126 | Read(string, len); |
eafc087e GL |
127 | |
128 | string[len] = 0; | |
129 | wx_string = string; | |
130 | delete string; | |
131 | ||
a3622daa | 132 | return wx_string; |
eafc087e GL |
133 | } |
134 | ||
f4ada568 GL |
135 | // --------------------------------------------------------------------------- |
136 | // wxDataOutputStream | |
137 | // --------------------------------------------------------------------------- | |
138 | ||
3d4c6a21 GL |
139 | wxDataOutputStream::wxDataOutputStream(wxOutputStream& s) |
140 | : wxFilterOutputStream(s) | |
141 | { | |
142 | } | |
143 | ||
f0b07807 KB |
144 | wxDataOutputStream::~wxDataOutputStream() |
145 | { | |
146 | } | |
147 | ||
3d4c6a21 | 148 | void wxDataOutputStream::Write32(unsigned long i) |
cf447356 GL |
149 | { |
150 | char buf[4]; | |
151 | ||
cf447356 GL |
152 | buf[0] = i & 0xff; |
153 | buf[1] = (i >> 8) & 0xff; | |
154 | buf[2] = (i >> 16) & 0xff; | |
155 | buf[3] = (i >> 24) & 0xff; | |
3d4c6a21 | 156 | Write(buf, 4); |
cf447356 GL |
157 | } |
158 | ||
3d4c6a21 | 159 | void wxDataOutputStream::Write16(unsigned short i) |
cf447356 GL |
160 | { |
161 | char buf[2]; | |
162 | ||
cf447356 GL |
163 | buf[0] = i & 0xff; |
164 | buf[1] = (i >> 8) & 0xff; | |
3d4c6a21 | 165 | Write(buf, 2); |
cf447356 GL |
166 | } |
167 | ||
3d4c6a21 | 168 | void wxDataOutputStream::Write8(unsigned char i) |
cf447356 | 169 | { |
3d4c6a21 | 170 | Write(&i, 1); |
cf447356 GL |
171 | } |
172 | ||
3d4c6a21 | 173 | void wxDataOutputStream::WriteLine(const wxString& line) |
cf447356 | 174 | { |
2049ba38 | 175 | #ifdef __WXMSW__ |
84fff0b3 | 176 | wxString tmp_string = line + _T("\r\n"); |
eafc087e | 177 | #else |
84fff0b3 | 178 | wxString tmp_string = line + _T('\n'); |
eafc087e GL |
179 | #endif |
180 | ||
84fff0b3 | 181 | Write((const wxChar *) tmp_string, tmp_string.Length()*sizeof(wxChar)); |
eafc087e GL |
182 | } |
183 | ||
3d4c6a21 | 184 | void wxDataOutputStream::WriteString(const wxString& string) |
eafc087e | 185 | { |
debe6624 | 186 | Write32(string.Length()); |
84fff0b3 | 187 | Write((const wxChar *) string, string.Length()*sizeof(wxChar)); |
cf447356 GL |
188 | } |
189 | ||
5260b1c5 JS |
190 | // Must be at global scope for VC++ 5 |
191 | extern "C" void ConvertToIeeeExtended(double num, unsigned char *bytes); | |
192 | ||
3d4c6a21 | 193 | void wxDataOutputStream::WriteDouble(double d) |
cf447356 | 194 | { |
cf447356 GL |
195 | char buf[10]; |
196 | ||
47d67540 | 197 | #if wxUSE_APPLE_IEEE |
cf447356 | 198 | ConvertToIeeeExtended(d, (unsigned char *)buf); |
0e338ff9 | 199 | #else |
631f1bfe | 200 | # pragma warning "wxDataOutputStream::WriteDouble() not using IeeeExtended - will not work!" |
0e338ff9 KB |
201 | buf[0] = '\0'; |
202 | #endif | |
3d4c6a21 | 203 | Write(buf, 10); |
cf447356 | 204 | } |
ce4169a4 RR |
205 | |
206 | #endif | |
207 | // wxUSE_STREAMS | |
208 |