3f66f6a5b3
This keyword is not expanded by Git which means it's not replaced with the correct revision value in the releases made using git-based scripts and it's confusing to have lines with unexpanded "$Id$" in the released files. As expanding them with Git is not that simple (it could be done with git archive and export-subst attribute) and there are not many benefits in having them in the first place, just remove all these lines. If nothing else, this will make an eventual transition to Git simpler. Closes #14487. git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74602 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
265 lines
9.8 KiB
C++
265 lines
9.8 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: src/common/imagxpm.cpp
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// Purpose: wxXPMHandler
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// Author: Vaclav Slavik, Robert Roebling
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// Copyright: (c) 2001 Vaclav Slavik
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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/*
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This file is partially based on source code of ImageMagick by John Cristy. Its
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license is as follows:
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% %
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% %
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% %
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% X X PPPP M M %
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% X X P P MM MM %
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% X PPPP M M M %
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% X X P M M %
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% X X P M M %
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% %
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% %
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% Read/Write ImageMagick Image Format. %
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% %
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% %
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% Software Design %
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% John Cristy %
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% July 1992 %
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% %
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% %
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% Copyright (C) 2001 ImageMagick Studio, a non-profit organization dedicated %
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% to making software imaging solutions freely available. %
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% %
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% Permission is hereby granted, free of charge, to any person obtaining a %
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% copy of this software and associated documentation files ("ImageMagick"), %
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% to deal in ImageMagick without restriction, including without limitation %
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% the rights to use, copy, modify, merge, publish, distribute, sublicense, %
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% and/or sell copies of ImageMagick, and to permit persons to whom the %
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% ImageMagick is furnished to do so, subject to the following conditions: %
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% %
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% The above copyright notice and this permission notice shall be included in %
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% all copies or substantial portions of ImageMagick. %
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% %
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% The software is provided "as is", without warranty of any kind, express or %
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% implied, including but not limited to the warranties of merchantability, %
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% fitness for a particular purpose and noninfringement. In no event shall %
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% ImageMagick Studio be liable for any claim, damages or other liability, %
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% whether in an action of contract, tort or otherwise, arising from, out of %
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% or in connection with ImageMagick or the use or other dealings in %
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% ImageMagick. %
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% %
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% Except as contained in this notice, the name of the ImageMagick Studio %
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% shall not be used in advertising or otherwise to promote the sale, use or %
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% other dealings in ImageMagick without prior written authorization from the %
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% ImageMagick Studio. %
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% %
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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%
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*/
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#if wxUSE_XPM
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#ifndef WX_PRECOMP
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#include "wx/log.h"
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#include "wx/intl.h"
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#include "wx/utils.h"
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#endif
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#include "wx/imagxpm.h"
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#include "wx/wfstream.h"
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#include "wx/xpmdecod.h"
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#include "wx/filename.h"
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IMPLEMENT_DYNAMIC_CLASS(wxXPMHandler,wxImageHandler)
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//-----------------------------------------------------------------------------
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// wxXPMHandler
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//-----------------------------------------------------------------------------
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#if wxUSE_STREAMS
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bool wxXPMHandler::LoadFile(wxImage *image,
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wxInputStream& stream,
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bool WXUNUSED(verbose), int WXUNUSED(index))
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{
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wxXPMDecoder decoder;
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wxImage img = decoder.ReadFile(stream);
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if ( !img.IsOk() )
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return false;
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*image = img;
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return true;
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}
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namespace
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{
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// Make the given string a valid C identifier.
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//
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// All invalid characters are simply replaced by underscores and underscore is
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// also prepended in the beginning if the initial character is not alphabetic.
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void
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MakeValidCIdent(wxString* str)
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{
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const wxChar chUnderscore = wxT('_');
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for ( wxString::iterator it = str->begin(); it != str->end(); ++it )
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{
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const wxChar ch = *it;
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if ( wxIsdigit(ch) )
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{
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if ( it == str->begin() )
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{
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// Identifiers can't start with a digit.
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str->insert(0, chUnderscore); // prepend underscore
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it = str->begin(); // restart as string changed
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continue;
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}
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}
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else if ( !wxIsalpha(ch) && ch != chUnderscore )
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{
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// Not a valid character in C identifiers.
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*it = chUnderscore;
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}
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}
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// Double underscores are not allowed in normal C identifiers and are
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// useless anyhow.
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str->Replace(wxT("__"), wxT("_"));
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}
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} // anonymous namespace
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bool wxXPMHandler::SaveFile(wxImage * image,
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wxOutputStream& stream, bool WXUNUSED(verbose))
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{
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// 1. count colours:
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#define MaxCixels 92
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static const char Cixel[MaxCixels+1] =
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" .XoO+@#$%&*=-;:>,<1234567890qwertyuipasdfghjk"
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"lzxcvbnmMNBVCZASDFGHJKLPIUYTREWQ!~^/()_`'][{}|";
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int i, j, k;
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wxImageHistogram histogram;
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int cols = int(image->ComputeHistogram(histogram));
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int chars_per_pixel = 1;
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for ( k = MaxCixels; cols > k; k *= MaxCixels)
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chars_per_pixel++;
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// 2. write the header:
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wxString sName;
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if ( image->HasOption(wxIMAGE_OPTION_FILENAME) )
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{
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sName = wxFileName(image->GetOption(wxIMAGE_OPTION_FILENAME)).GetName();
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MakeValidCIdent(&sName);
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sName << wxT("_xpm");
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}
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if ( !sName.empty() )
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sName = wxString(wxT("/* XPM */\nstatic const char *")) + sName;
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else
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sName = wxT("/* XPM */\nstatic const char *xpm_data");
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stream.Write( (const char*) sName.ToAscii(), sName.Len() );
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char tmpbuf[200];
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// VS: 200b is safe upper bound for anything produced by sprintf below
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// (<101 bytes the string, neither %i can expand into more than 10 chars)
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sprintf(tmpbuf,
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"[] = {\n"
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"/* columns rows colors chars-per-pixel */\n"
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"\"%i %i %i %i\",\n",
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image->GetWidth(), image->GetHeight(), cols, chars_per_pixel);
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stream.Write(tmpbuf, strlen(tmpbuf));
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// 3. create color symbols table:
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char *symbols_data = new char[cols * (chars_per_pixel+1)];
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char **symbols = new char*[cols];
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// 2a. find mask colour:
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unsigned long mask_key = 0x1000000 /*invalid RGB value*/;
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if (image->HasMask())
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mask_key = (image->GetMaskRed() << 16) |
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(image->GetMaskGreen() << 8) | image->GetMaskBlue();
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// 2b. generate colour table:
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for (wxImageHistogram::iterator entry = histogram.begin();
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entry != histogram.end(); ++entry )
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{
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unsigned long index = entry->second.index;
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symbols[index] = symbols_data + index * (chars_per_pixel+1);
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char *sym = symbols[index];
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for (j = 0; j < chars_per_pixel; j++)
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{
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sym[j] = Cixel[index % MaxCixels];
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index /= MaxCixels;
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}
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sym[j] = '\0';
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unsigned long key = entry->first;
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if (key == 0)
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sprintf( tmpbuf, "\"%s c Black\",\n", sym);
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else if (key == mask_key)
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sprintf( tmpbuf, "\"%s c None\",\n", sym);
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else
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{
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wxByte r = wxByte(key >> 16);
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wxByte g = wxByte(key >> 8);
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wxByte b = wxByte(key);
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sprintf(tmpbuf, "\"%s c #%02X%02X%02X\",\n", sym, r, g, b);
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}
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stream.Write( tmpbuf, strlen(tmpbuf) );
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}
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stream.Write("/* pixels */\n", 13);
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unsigned char *data = image->GetData();
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for (j = 0; j < image->GetHeight(); j++)
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{
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char tmp_c;
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tmp_c = '\"'; stream.Write(&tmp_c, 1);
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for (i = 0; i < image->GetWidth(); i++, data += 3)
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{
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unsigned long key = (data[0] << 16) | (data[1] << 8) | (data[2]);
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stream.Write(symbols[histogram[key].index], chars_per_pixel);
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}
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tmp_c = '\"'; stream.Write(&tmp_c, 1);
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if ( j + 1 < image->GetHeight() )
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{
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tmp_c = ','; stream.Write(&tmp_c, 1);
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}
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tmp_c = '\n'; stream.Write(&tmp_c, 1);
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}
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stream.Write("};\n", 3 );
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// Clean up:
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delete[] symbols;
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delete[] symbols_data;
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return true;
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}
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bool wxXPMHandler::DoCanRead(wxInputStream& stream)
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{
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wxXPMDecoder decoder;
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return decoder.CanRead(stream);
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// it's ok to modify the stream position here
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}
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#endif // wxUSE_STREAMS
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#endif // wxUSE_XPM
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