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pytqt/pytquic3/embed.cpp

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8.7 KiB

/**********************************************************************
** Copyright (C) 2000 Trolltech AS. All rights reserved.
** Copyright (c) 2001 Phil Thompson <phil@river-bank.demon.co.uk>
** Copyright (c) 2002 Riverbank Computing Limited <info@riverbankcomputing.co.uk>
**
** This file is part of TQt Designer.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/
#include "uic.h"
#include <tqfile.h>
#include <tqimage.h>
#include <tqstringlist.h>
#include <tqdatetime.h>
#include <tqfileinfo.h>
#include <stdio.h>
#include <ctype.h>
// on embedded, we do not compress image data. Rationale: by mapping
// the ready-only data directly into memory we are both faster and
// more memory efficient
#if defined(Q_WS_QWS) && !defined(TQT_NO_IMAGE_COLLECTION_COMPRESSION)
#define TQT_NO_IMAGE_COLLECTION_COMPRESSION
#endif
struct EmbedImage
{
~EmbedImage() { delete[] colorTable; }
int width, height, depth;
int numColors;
TQRgb* colorTable;
TQString name;
TQString cname;
bool alpha;
#ifndef TQT_NO_IMAGE_COLLECTION_COMPRESSION
ulong compressed;
#endif
};
static TQString convertToCIdentifier( const char *s )
{
TQString r = s;
int len = r.length();
if ( len > 0 && !isalpha( (char)r[0].latin1() ) )
r[0] = '_';
for ( int i=1; i<len; i++ ) {
if ( !isalnum( (char)r[i].latin1() ) )
r[i] = '_';
}
return r;
}
static ulong embedData( TQTextStream& out, const uchar* input, int nbytes )
{
#ifndef TQT_NO_IMAGE_COLLECTION_COMPRESSION
TQByteArray bazip( tqCompress( input, nbytes ) );
uint len = bazip.size();
#else
uint len = (uint)nbytes;
#endif
static const char hexdigits[] = "0123456789abcdef";
TQString s;
for ( uint i=0; i<len; i++ ) {
if ( (i%14) == 0 ) {
if (i)
s += '"';
s += " \\\n \"";
out << (const char*)s;
s.truncate( 0 );
}
uint v = (uchar)
#ifndef TQT_NO_IMAGE_COLLECTION_COMPRESSION
bazip
#else
input
#endif
[(int)i];
s += "\\x";
s += hexdigits[(v >> 4) & 15];
s += hexdigits[v & 15];
if ( i == len-1 )
s += "\"\n";
}
if ( s.length() )
out << (const char*)s;
return (ulong)len;
}
static void embedData( TQTextStream& out, const TQRgb* input, int n )
{
out << hex;
const TQRgb *v = input;
for ( int i=0; i<n; i++ ) {
if ( (i%14) == 0 )
out << "\n ";
out << "0x";
out << hex << *v++;
if ( i < n-1 )
out << ',';
}
out << dec; // back to decimal mode
}
void Uic::embed( TQTextStream& out, const char* project, const TQStringList& images )
{
TQString cProject = convertToCIdentifier( project );
TQStringList::ConstIterator it;
out << "# Image collection for project '" << project << "'.\n";
out << "#\n";
out << "# Generated from reading image files: \n";
for ( it = images.begin(); it != images.end(); ++it )
out << "# " << *it << "\n";
out << "#\n";
out << "# Created by: The PyTQt User Interface Compiler (pytquic) " << PYTQT_VERSION << "\n";
out << "#\n";
out << "# WARNING! All changes made in this file will be lost!\n";
out << "\n";
out << "\n";
out << "from PyTQt.tqt import TQImage, TQMimeSourceFactory";
#ifndef TQT_NO_IMAGE_COLLECTION_COMPRESSION
out << ", tqUncompress";
#endif
out << "\n";
out << "\n";
out << "\n";
TQPtrList<EmbedImage> list_image;
list_image.setAutoDelete( TRUE );
int image_count = 0;
for ( it = images.begin(); it != images.end(); ++it ) {
TQImage img;
if ( !img.load( *it ) ) {
fprintf( stderr, "pytquic: cannot load image file %s\n", (*it).local8Bit().data() );
continue;
}
EmbedImage *e = new EmbedImage;
e->width = img.width();
e->height = img.height();
e->depth = img.depth();
e->numColors = img.numColors();
e->colorTable = new TQRgb[e->numColors];
e->alpha = img.hasAlphaBuffer();
memcpy(e->colorTable, img.colorTable(), e->numColors*sizeof(TQRgb));
TQFileInfo fi( *it );
e->name = fi.fileName();
e->cname = TQString("image_%1").arg( image_count++);
list_image.append( e );
out << "# " << *it << "\n";
TQString s;
if ( e->depth == 1 )
img = img.convertBitOrder(TQImage::BigEndian);
out << s.sprintf( "%s_data =",
(const char *)e->cname );
#ifndef TQT_NO_IMAGE_COLLECTION_COMPRESSION
e->compressed =
#endif
embedData( out, img.bits(), img.numBytes() );
out << "\n";
if ( e->numColors ) {
out << s.sprintf( "%s_ctable = [",
(const char *)e->cname );
embedData( out, e->colorTable, e->numColors );
out << "\n]\n\n";
}
}
if ( !list_image.isEmpty() ) {
out << indent << "embed_image_vec = [\n";
++indent;
EmbedImage *e = list_image.first();
while ( e ) {
out << indent << "["
<< e->width << ","
<< e->height << ","
<< e->depth << ","
<< e->cname << "_data,"
#ifndef TQT_NO_IMAGE_COLLECTION_COMPRESSION
<< e->compressed << ","
#endif
<< e->numColors << ",";
if ( e->numColors )
out << e->cname << "_ctable,";
else
out << "None,";
if ( e->alpha )
out << "1,";
else
out << "0,";
out << "\"" << e->name << "\"],\n";
e = list_image.next();
}
--indent;
out << indent << "]\n";
out << "\n"
"\n"
"def uic_findImage(name):\n";
++indent;
out << indent << "global embed_image_vec\n";
out << "\n";
#ifndef TQT_NO_IMAGE_COLLECTION_COMPRESSION
out << indent << "for (w,h,depth,data,comp,nrCol,colTab,alpha,iname) in embed_image_vec:" << endl;
#else
out << indent << "for (w,h,depth,data,nrCol,colTab,alpha,iname) in embed_image_vec:" << endl;
#endif
++indent;
out << indent << "if iname == str(name):" << endl;
++indent;
#ifndef TQT_NO_IMAGE_COLLECTION_COMPRESSION
// Keep the data object alive until we have a deep copy of the image.
out << indent << "data = tqUncompress(data).data()\n";
#endif
out << indent << "img = TQImage(data,w,h,depth,colTab,nrCol,TQImage.BigEndian).copy()\n";
out << "\n";
out << indent << "if alpha:\n";
++indent;
out << indent << "img.setAlphaBuffer(1)\n";
--indent;
out << "\n";
out << indent << "return img\n";
--indent;
--indent;
out << endl;
out << indent << "return TQImage()\n";
--indent;
out << "\n";
out << "\n";
out << indent << "class MimeSourceFactory_" << cProject << "(TQMimeSourceFactory):\n";
++indent;
out << indent << "def __init__(self):\n";
++indent;
out << indent << "TQMimeSourceFactory.__init__(self)\n";
out << "\n";
--indent;
out << indent << "def data(self,abs_name):\n";
++indent;
out << indent << "d = TQMimeSourceFactory.data(self,abs_name)\n";
out << indent << "if d or abs_name.isNull():\n";
++indent;
out << indent << "return d\n";
--indent;
out << "\n";
out << indent << "img = uic_findImage(abs_name)\n";
out << indent << "if not img.isNull():\n";
++indent;
out << indent << "self.setImage(abs_name,img)\n";
--indent;
out << "\n";
out << indent << "return TQMimeSourceFactory.data(self,abs_name)\n";
--indent;
--indent;
out << "\n";
out << "\n";
out << indent << "factory = None\n";
out << "\n";
out << indent << "def tqInitImages_" << cProject << "():\n";
++indent;
out << indent << "global factory\n";
out << "\n";
out << indent << "if factory is None:\n";
++indent;
out << indent << "factory = MimeSourceFactory_" << cProject << "()\n";
out << indent << "TQMimeSourceFactory.defaultFactory().addFactory(factory)\n";
--indent;
--indent;
out << "\n";
out << "\n";
out << indent << "def tqCleanupImages_" << cProject << "():\n";
++indent;
out << indent << "global factory\n";
out << "\n";
out << indent << "if factory is not None:\n";
++indent;
out << indent << "TQMimeSourceFactory.defaultFactory().removeFactory(factory)\n";
out << indent << "factory = None\n";
--indent;
--indent;
out << "\n";
out << "\n";
out << indent << "class StaticInitImages_" << cProject << ":\n";
++indent;
out << indent << "def __init__(self):\n";
++indent;
out << indent << "self.cleanup = tqCleanupImages_" << cProject << "\n";
out << indent << "tqInitImages_" << cProject << "()\n";
--indent;
out << "\n";
out << indent << "def __del__(self):\n";
++indent;
out << indent << "self.cleanup()\n";
--indent;
--indent;
out << "\n";
out << "\n";
out << "staticImages = StaticInitImages_" << cProject << "()\n";
}
}