/[pcsx2_0.9.7]/trunk/3rdparty/wxWidgets/src/common/imagxpm.cpp
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Annotation of /trunk/3rdparty/wxWidgets/src/common/imagxpm.cpp

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Revision 31 - (hide annotations) (download)
Tue Sep 7 03:24:11 2010 UTC (10 years, 4 months ago) by william
File size: 8884 byte(s)
committing r3113 initial commit again...
1 william 31 /////////////////////////////////////////////////////////////////////////////
2     // Name: src/common/imagxpm.cpp
3     // Purpose: wxXPMHandler
4     // Author: Vaclav Slavik, Robert Roebling
5     // RCS-ID: $Id: imagxpm.cpp 53477 2008-05-07 07:28:57Z JS $
6     // Copyright: (c) 2001 Vaclav Slavik
7     // Licence: wxWindows licence
8     /////////////////////////////////////////////////////////////////////////////
9    
10     /*
11    
12     This file is partially based on source code of ImageMagick by John Cristy. Its
13     license is as follows:
14    
15     %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
16     % %
17     % %
18     % %
19     % X X PPPP M M %
20     % X X P P MM MM %
21     % X PPPP M M M %
22     % X X P M M %
23     % X X P M M %
24     % %
25     % %
26     % Read/Write ImageMagick Image Format. %
27     % %
28     % %
29     % Software Design %
30     % John Cristy %
31     % July 1992 %
32     % %
33     % %
34     % Copyright (C) 2001 ImageMagick Studio, a non-profit organization dedicated %
35     % to making software imaging solutions freely available. %
36     % %
37     % Permission is hereby granted, free of charge, to any person obtaining a %
38     % copy of this software and associated documentation files ("ImageMagick"), %
39     % to deal in ImageMagick without restriction, including without limitation %
40     % the rights to use, copy, modify, merge, publish, distribute, sublicense, %
41     % and/or sell copies of ImageMagick, and to permit persons to whom the %
42     % ImageMagick is furnished to do so, subject to the following conditions: %
43     % %
44     % The above copyright notice and this permission notice shall be included in %
45     % all copies or substantial portions of ImageMagick. %
46     % %
47     % The software is provided "as is", without warranty of any kind, express or %
48     % implied, including but not limited to the warranties of merchantability, %
49     % fitness for a particular purpose and noninfringement. In no event shall %
50     % ImageMagick Studio be liable for any claim, damages or other liability, %
51     % whether in an action of contract, tort or otherwise, arising from, out of %
52     % or in connection with ImageMagick or the use or other dealings in %
53     % ImageMagick. %
54     % %
55     % Except as contained in this notice, the name of the ImageMagick Studio %
56     % shall not be used in advertising or otherwise to promote the sale, use or %
57     % other dealings in ImageMagick without prior written authorization from the %
58     % ImageMagick Studio. %
59     % %
60     %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
61     %
62     %
63     */
64    
65     // For compilers that support precompilation, includes "wx.h".
66     #include "wx/wxprec.h"
67    
68     #ifdef __BORLANDC__
69     #pragma hdrstop
70     #endif
71    
72     #if wxUSE_XPM
73    
74     #ifndef WX_PRECOMP
75     #include "wx/log.h"
76     #include "wx/intl.h"
77     #include "wx/utils.h"
78     #endif
79    
80     #include "wx/imagxpm.h"
81     #include "wx/wfstream.h"
82     #include "wx/xpmdecod.h"
83    
84     IMPLEMENT_DYNAMIC_CLASS(wxXPMHandler,wxImageHandler)
85    
86     //-----------------------------------------------------------------------------
87     // wxXPMHandler
88     //-----------------------------------------------------------------------------
89    
90     #if wxUSE_STREAMS
91    
92     bool wxXPMHandler::LoadFile(wxImage *image,
93     wxInputStream& stream,
94     bool WXUNUSED(verbose), int WXUNUSED(index))
95     {
96     wxXPMDecoder decoder;
97    
98     wxImage img = decoder.ReadFile(stream);
99     if ( !img.Ok() )
100     return false;
101     *image = img;
102     return true;
103     }
104    
105     bool wxXPMHandler::SaveFile(wxImage * image,
106     wxOutputStream& stream, bool WXUNUSED(verbose))
107     {
108     // 1. count colours:
109     #define MaxCixels 92
110     static const char Cixel[MaxCixels+1] =
111     " .XoO+@#$%&*=-;:>,<1234567890qwertyuipasdfghjk"
112     "lzxcvbnmMNBVCZASDFGHJKLPIUYTREWQ!~^/()_`'][{}|";
113     int i, j, k;
114    
115     wxImageHistogram histogram;
116     int cols = int(image->ComputeHistogram(histogram));
117    
118     int chars_per_pixel = 1;
119     for ( k = MaxCixels; cols > k; k *= MaxCixels)
120     chars_per_pixel++;
121    
122     // 2. write the header:
123     wxString sName;
124     if ( image->HasOption(wxIMAGE_OPTION_FILENAME) )
125     {
126     wxSplitPath(image->GetOption(wxIMAGE_OPTION_FILENAME),
127     NULL, &sName, NULL);
128     sName << wxT("_xpm");
129     }
130    
131     if ( !sName.empty() )
132     sName = wxString(wxT("/* XPM */\nstatic const char *")) + sName;
133     else
134     sName = wxT("/* XPM */\nstatic const char *xpm_data");
135     stream.Write( (const char*) sName.ToAscii(), sName.Len() );
136    
137     char tmpbuf[200];
138     // VS: 200b is safe upper bound for anything produced by sprintf below
139     // (<101 bytes the string, neither %i can expand into more than 10 chars)
140     sprintf(tmpbuf,
141     "[] = {\n"
142     "/* columns rows colors chars-per-pixel */\n"
143     "\"%i %i %i %i\",\n",
144     image->GetWidth(), image->GetHeight(), cols, chars_per_pixel);
145     stream.Write(tmpbuf, strlen(tmpbuf));
146    
147     // 3. create color symbols table:
148     char *symbols_data = new char[cols * (chars_per_pixel+1)];
149     char **symbols = new char*[cols];
150    
151     // 2a. find mask colour:
152     unsigned long mask_key = 0x1000000 /*invalid RGB value*/;
153     if (image->HasMask())
154     mask_key = (image->GetMaskRed() << 16) |
155     (image->GetMaskGreen() << 8) | image->GetMaskBlue();
156    
157     // 2b. generate colour table:
158     for (wxImageHistogram::iterator entry = histogram.begin();
159     entry != histogram.end(); ++entry )
160     {
161     unsigned long index = entry->second.index;
162     symbols[index] = symbols_data + index * (chars_per_pixel+1);
163     char *sym = symbols[index];
164    
165     for (j = 0; j < chars_per_pixel; j++)
166     {
167     sym[j] = Cixel[index % MaxCixels];
168     index /= MaxCixels;
169     }
170     sym[j] = '\0';
171    
172     unsigned long key = entry->first;
173    
174     if (key == 0)
175     sprintf( tmpbuf, "\"%s c Black\",\n", sym);
176     else if (key == mask_key)
177     sprintf( tmpbuf, "\"%s c None\",\n", sym);
178     else
179     {
180     wxByte r = wxByte(key >> 16);
181     wxByte g = wxByte(key >> 8);
182     wxByte b = wxByte(key);
183     sprintf(tmpbuf, "\"%s c #%02X%02X%02X\",\n", sym, r, g, b);
184     }
185     stream.Write( tmpbuf, strlen(tmpbuf) );
186     }
187    
188     stream.Write("/* pixels */\n", 13);
189    
190     unsigned char *data = image->GetData();
191     for (j = 0; j < image->GetHeight(); j++)
192     {
193     char tmp_c;
194     tmp_c = '\"'; stream.Write(&tmp_c, 1);
195     for (i = 0; i < image->GetWidth(); i++, data += 3)
196     {
197     unsigned long key = (data[0] << 16) | (data[1] << 8) | (data[2]);
198     stream.Write(symbols[histogram[key].index], chars_per_pixel);
199     }
200     tmp_c = '\"'; stream.Write(&tmp_c, 1);
201     if ( j + 1 < image->GetHeight() )
202     {
203     tmp_c = ','; stream.Write(&tmp_c, 1);
204     }
205     tmp_c = '\n'; stream.Write(&tmp_c, 1);
206     }
207     stream.Write("};\n", 3 );
208    
209     // Clean up:
210     delete[] symbols;
211     delete[] symbols_data;
212    
213     return true;
214     }
215    
216     bool wxXPMHandler::DoCanRead(wxInputStream& stream)
217     {
218     wxXPMDecoder decoder;
219     return decoder.CanRead(stream);
220     }
221    
222     #endif // wxUSE_STREAMS
223    
224     #endif // wxUSE_XPM

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