1e6feb95a7
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@10673 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
224 lines
8.5 KiB
C++
224 lines
8.5 KiB
C++
/////////////////////////////////////////////////////////////////////////////
|
|
// Name: imagxpm.cpp
|
|
// Purpose: wxXPMHandler
|
|
// Author: Vaclav Slavik, Robert Roebling
|
|
// RCS-ID: $Id$
|
|
// Copyright: (c) 2001 Vaclav Slavik
|
|
// Licence: wxWindows licence
|
|
/////////////////////////////////////////////////////////////////////////////
|
|
|
|
/*
|
|
|
|
This file is partially based on source code of ImageMagick by John Cristy. Its
|
|
license is as follows:
|
|
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
% %
|
|
% %
|
|
% %
|
|
% X X PPPP M M %
|
|
% X X P P MM MM %
|
|
% X PPPP M M M %
|
|
% X X P M M %
|
|
% X X P M M %
|
|
% %
|
|
% %
|
|
% Read/Write ImageMagick Image Format. %
|
|
% %
|
|
% %
|
|
% Software Design %
|
|
% John Cristy %
|
|
% July 1992 %
|
|
% %
|
|
% %
|
|
% Copyright (C) 2001 ImageMagick Studio, a non-profit organization dedicated %
|
|
% to making software imaging solutions freely available. %
|
|
% %
|
|
% Permission is hereby granted, free of charge, to any person obtaining a %
|
|
% copy of this software and associated documentation files ("ImageMagick"), %
|
|
% to deal in ImageMagick without restriction, including without limitation %
|
|
% the rights to use, copy, modify, merge, publish, distribute, sublicense, %
|
|
% and/or sell copies of ImageMagick, and to permit persons to whom the %
|
|
% ImageMagick is furnished to do so, subject to the following conditions: %
|
|
% %
|
|
% The above copyright notice and this permission notice shall be included in %
|
|
% all copies or substantial portions of ImageMagick. %
|
|
% %
|
|
% The software is provided "as is", without warranty of any kind, express or %
|
|
% implied, including but not limited to the warranties of merchantability, %
|
|
% fitness for a particular purpose and noninfringement. In no event shall %
|
|
% ImageMagick Studio be liable for any claim, damages or other liability, %
|
|
% whether in an action of contract, tort or otherwise, arising from, out of %
|
|
% or in connection with ImageMagick or the use or other dealings in %
|
|
% ImageMagick. %
|
|
% %
|
|
% Except as contained in this notice, the name of the ImageMagick Studio %
|
|
% shall not be used in advertising or otherwise to promote the sale, use or %
|
|
% other dealings in ImageMagick without prior written authorization from the %
|
|
% ImageMagick Studio. %
|
|
% %
|
|
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|
|
%
|
|
%
|
|
*/
|
|
|
|
#ifdef __GNUG__
|
|
#pragma implementation "imagxpm.h"
|
|
#endif
|
|
|
|
// For compilers that support precompilation, includes "wx.h".
|
|
#include "wx/wxprec.h"
|
|
|
|
#ifdef __BORLANDC__
|
|
# pragma hdrstop
|
|
#endif
|
|
|
|
#ifndef WX_PRECOMP
|
|
# include "wx/defs.h"
|
|
#endif
|
|
|
|
|
|
#include "wx/imagxpm.h"
|
|
#include "wx/wfstream.h"
|
|
#include "wx/log.h"
|
|
#include "wx/intl.h"
|
|
#include "wx/utils.h"
|
|
#include "wx/xpmdecod.h"
|
|
|
|
IMPLEMENT_DYNAMIC_CLASS(wxXPMHandler,wxImageHandler)
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// wxXPMHandler
|
|
//-----------------------------------------------------------------------------
|
|
|
|
#if wxUSE_STREAMS
|
|
|
|
bool wxXPMHandler::LoadFile(wxImage *image,
|
|
wxInputStream& stream,
|
|
bool WXUNUSED(verbose), int WXUNUSED(index))
|
|
{
|
|
wxXPMDecoder decoder;
|
|
|
|
wxImage img = decoder.ReadFile(stream);
|
|
if ( !img.Ok() )
|
|
return FALSE;
|
|
*image = img;
|
|
return TRUE;
|
|
}
|
|
|
|
bool wxXPMHandler::SaveFile(wxImage * image,
|
|
wxOutputStream& stream, bool WXUNUSED(verbose))
|
|
{
|
|
wxString tmp;
|
|
char tmp_c;
|
|
|
|
// 1. count colours:
|
|
#define MaxCixels 92
|
|
static const char Cixel[MaxCixels+1] =
|
|
" .XoO+@#$%&*=-;:>,<1234567890qwertyuipasdfghjk"
|
|
"lzxcvbnmMNBVCZASDFGHJKLPIUYTREWQ!~^/()_`'][{}|";
|
|
int chars_per_pixel;
|
|
int cols;
|
|
int i, j, k;
|
|
|
|
cols = image->CountColours();
|
|
chars_per_pixel = 1;
|
|
for ( k = MaxCixels; cols > k; k *= MaxCixels)
|
|
chars_per_pixel++;
|
|
|
|
// 2. write the header:
|
|
char tmpbuf[200];
|
|
// VS: 200b is safe upper bound for anything produced by sprintf bellow
|
|
// (101 bytes the string, neither %i can expand into more than 10 chars)
|
|
sprintf(tmpbuf,
|
|
"/* XPM */\n"
|
|
"static char *xpm_data[] = {\n"
|
|
"/* columns rows colors chars-per-pixel */\n"
|
|
"\"%i %i %i %i\",\n",
|
|
image->GetWidth(), image->GetHeight(), cols, chars_per_pixel);
|
|
stream.Write(tmpbuf, strlen(tmpbuf));
|
|
|
|
// 3. create color symbols table:
|
|
wxHashTable table(wxKEY_INTEGER);
|
|
image->ComputeHistogram(table);
|
|
|
|
char *symbols_data = new char[cols * (chars_per_pixel+1)];
|
|
char **symbols = new char*[cols];
|
|
|
|
// 2a. find mask colour:
|
|
long mask_key = -1;
|
|
if (image->HasMask())
|
|
mask_key = (image->GetMaskRed() << 16) |
|
|
(image->GetMaskGreen() << 8) | image->GetMaskBlue();
|
|
|
|
// 2b. generate colour table:
|
|
table.BeginFind();
|
|
wxNode *node = NULL;
|
|
while ((node = table.Next()) != NULL)
|
|
{
|
|
wxHNode *hnode = (wxHNode*) node->GetData();
|
|
long index = hnode->index;
|
|
symbols[index] = symbols_data + index * (chars_per_pixel+1);
|
|
char *sym = symbols[index];
|
|
|
|
k = index % MaxCixels;
|
|
sym[0] = Cixel[k];
|
|
for (j = 1; j < chars_per_pixel; j++)
|
|
{
|
|
k = ((index - k) / MaxCixels) % MaxCixels;
|
|
sym[j] = Cixel[k];
|
|
}
|
|
sym[j] = '\0';
|
|
|
|
long key = node->GetKeyInteger();
|
|
|
|
if (key == 0)
|
|
tmp.Printf(wxT("\"%s c Black\",\n"), sym);
|
|
else if (key == mask_key)
|
|
tmp.Printf(wxT("\"%s c None\",\n"), sym);
|
|
else
|
|
tmp.Printf(wxT("\"%s c #%s%s%s\",\n"), sym,
|
|
wxDecToHex((unsigned char)(key >> 16)).c_str(),
|
|
wxDecToHex((unsigned char)(key >> 8)).c_str(),
|
|
wxDecToHex((unsigned char)(key)).c_str());
|
|
stream.Write(tmp.mb_str(), tmp.Length());
|
|
}
|
|
|
|
tmp = wxT("/* pixels */\n");
|
|
stream.Write(tmp.mb_str(), tmp.Length());
|
|
|
|
unsigned char *data = image->GetData();
|
|
for (j = 0; j < image->GetHeight(); j++)
|
|
{
|
|
tmp_c = '\"'; stream.Write(&tmp_c, 1);
|
|
for (i = 0; i < image->GetWidth(); i++, data += 3)
|
|
{
|
|
unsigned long key = (data[0] << 16) | (data[1] << 8) | (data[2]);
|
|
wxHNode *hnode = (wxHNode*) table.Get(key);
|
|
stream.Write(symbols[hnode->index], chars_per_pixel);
|
|
}
|
|
tmp_c = '\"'; stream.Write(&tmp_c, 1);
|
|
if ( j + 1 < image->GetHeight() )
|
|
{
|
|
tmp_c = ','; stream.Write(&tmp_c, 1);
|
|
}
|
|
tmp_c = '\n'; stream.Write(&tmp_c, 1);
|
|
}
|
|
tmp = wxT("};\n");
|
|
stream.Write(tmp.mb_str(), 3);
|
|
|
|
delete[] symbols;
|
|
delete[] symbols_data;
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
bool wxXPMHandler::DoCanRead(wxInputStream& stream)
|
|
{
|
|
wxXPMDecoder decoder;
|
|
return decoder.CanRead(stream);
|
|
}
|
|
|
|
#endif // wxUSE_STREAMS
|
|
|