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tdenetwork/kopete/protocols/gadu/gadurichtextformat.cpp

292 lines
7.8 KiB

// -*- Mode: c++-mode; c-basic-offset: 2; indent-tabs-mode: t; tab-width: 2; -*-
//
// Copyright (C) 2004 Grzegorz Jaskiewicz <gj at pointblue.com.pl>
//
// gadurichtextformat.cpp
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
// 02110-1301, USA.
#include <knotifyclient.h>
#include <kdebug.h>
#include <kopetemessage.h>
#include "gadurichtextformat.h"
#include "gadusession.h"
#include <tqstring.h>
#include <tqregexp.h>
GaduRichTextFormat::GaduRichTextFormat()
{
}
GaduRichTextFormat::~GaduRichTextFormat()
{
}
QString
GaduRichTextFormat::convertToHtml( const TQString& msg, unsigned int formats, void* formatStructure)
{
TQString tmp, nb;
gg_msg_richtext_format *format;
char *pointer = (char*) formatStructure;
unsigned int i,j;
int r, g, b;
r = g = b = 0;
bool opened = false;
if ( formatStructure == NULL || formats == 0 ) {
tmp = msg;
escapeBody( tmp );
return tmp;
}
for ( i = 0, j = 0 ; i < formats ; ) {
format = (gg_msg_richtext_format*) pointer;
unsigned int position = format->position;
char font = format->font;
TQString style;
if ( position < j || position > msg.length() ) {
break;
}
if ( font & GG_FONT_IMAGE ) {
i += sizeof( gg_msg_richtext_image );
pointer += sizeof( gg_msg_richtext_image );
tmp += "<b>[this should be a picture, not yet implemented]</b>";
}
else {
nb = msg.mid( j, position - j );
tmp += escapeBody( nb );
j = position;
// add message bit between formating
if ( opened ) {
tmp += formatClosingTag("span");
opened = false;
}
// set font attributes
if ( font & GG_FONT_BOLD ) {
style += (" font-weight:bold; ");
}
if ( font & GG_FONT_ITALIC ) {
style += (" font-style:italic; ");
}
if ( font & GG_FONT_UNDERLINE ) {
style += (" text-decoration:underline; ");
}
// add color
if ( font & GG_FONT_COLOR ) {
pointer += sizeof( gg_msg_richtext_format );
i += sizeof( gg_msg_richtext_format );
gg_msg_richtext_color *color = (gg_msg_richtext_color*)( pointer );
r = (int)color->red;
g = (int)color->green;
b = (int)color->blue;
}
style += TQString(" color: rgb( %1, %2, %3 ); ").arg( r ).arg( g ).arg( b );
tmp += formatOpeningTag( TQString::fromLatin1("span"), TQString::fromLatin1("style=\"%1\"").arg( style ) );
opened = true;
}
// advance to next structure in row
pointer += sizeof( gg_msg_richtext_format );
i += sizeof( gg_msg_richtext_format );
}
nb = msg.mid( j, msg.length() );
tmp += escapeBody( nb );
if ( opened ) {
tmp += formatClosingTag("span");
}
return tmp;
}
QString
GaduRichTextFormat::formatOpeningTag( const TQString& tag, const TQString& attributes )
{
TQString res = "<" + tag;
if(!attributes.isEmpty())
res.append(" " + attributes);
return res + ">";
}
QString
GaduRichTextFormat::formatClosingTag( const TQString& tag )
{
return "</" + tag + ">";
}
// the initial idea stolen from IRC plugin
KGaduMessage*
GaduRichTextFormat::convertToGaduMessage( const Kopete::Message& message )
{
TQString htmlString = message.escapedBody();
KGaduMessage* output = new KGaduMessage;
rtcs.blue = rtcs.green = rtcs.red = 0;
color = TQColor();
int position = 0;
rtf.resize( sizeof( gg_msg_richtext) );
output->rtf.resize(0);
// test first if there is any HTML formating in it
if( htmlString.find( TQString::fromLatin1("</span") ) > -1 ) {
TQRegExp findTags( TQString::fromLatin1("<span style=\"(.*)\">(.*)</span>") );
findTags.setMinimal( true );
int pos = 0;
int lastpos = 0;
while ( pos >= 0 ){
pos = findTags.search( htmlString );
rtfs.font = 0;
if ( pos != lastpos ) {
TQString tmp;
if ( pos < 0 ) {
tmp = htmlString.mid( lastpos );
}
else {
tmp = htmlString.mid( lastpos, pos - lastpos );
}
if ( !tmp.isEmpty() ) {
color.setRgb( 0, 0, 0 );
if ( insertRtf( position ) == false ) {
delete output;
return NULL;
}
tmp = unescapeGaduMessage( tmp );
output->message += tmp;
position += tmp.length();
}
}
if ( pos > -1 ) {
TQString styleHTML = findTags.cap(1);
TQString replacement = findTags.cap(2);
TQStringList styleAttrs = TQStringList::split( ';', styleHTML );
rtfs.font = 0;
lastpos = pos + replacement.length();
for( TQStringList::Iterator attrPair = styleAttrs.begin(); attrPair != styleAttrs.end(); ++attrPair ) {
TQString attribute = (*attrPair).section(':',0,0);
TQString value = (*attrPair).section(':',1);
parseAttributes( attribute, value );
}
if ( insertRtf( position ) == false ) {
delete output;
return NULL;
}
TQString rep = TQString("<span style=\"%1\">%2</span>" ).arg( styleHTML ).arg( replacement );
htmlString.replace( findTags.pos( 0 ), rep.length(), replacement );
replacement = unescapeGaduMessage( replacement );
output->message += replacement;
position += replacement.length();
}
}
output->rtf = rtf;
// this is sick, but that's the way libgadu is designed
// here I am adding network header !, should sit in libgadu IMO
header = (gg_msg_richtext*) output->rtf.data();
header->length = output->rtf.size() - sizeof( gg_msg_richtext );
header->flag = 2;
}
else {
output->message = message.escapedBody();
output->message = unescapeGaduMessage( output->message );
}
return output;
}
void
GaduRichTextFormat::parseAttributes( const TQString attribute, const TQString value )
{
if( attribute == TQString::fromLatin1("color") ) {
color.setNamedColor( value );
}
if( attribute == TQString::fromLatin1("font-weight") && value == TQString::fromLatin1("600") ) {
rtfs.font |= GG_FONT_BOLD;
}
if( attribute == TQString::fromLatin1("text-decoration") && value == TQString::fromLatin1("underline") ) {
rtfs.font |= GG_FONT_UNDERLINE ;
}
if( attribute == TQString::fromLatin1("font-style") && value == TQString::fromLatin1("italic") ) {
rtfs.font |= GG_FONT_ITALIC;
}
}
QString
GaduRichTextFormat::unescapeGaduMessage( TQString& ns )
{
TQString s;
s = Kopete::Message::unescape( ns );
s.replace( TQString::fromAscii( "\n" ), TQString::fromAscii( "\r\n" ) );
return s;
}
bool
GaduRichTextFormat::insertRtf( uint position)
{
if ( color != TQColor( rtcs.red, rtcs.green, rtcs.blue ) ) {
rtcs.red = color.red();
rtcs.green = color.green();
rtcs.blue = color.blue();
rtfs.font |= GG_FONT_COLOR;
}
if ( rtfs.font ) {
// append font description
rtfs.position = position;
uint csize = rtf.size();
if ( rtf.resize( csize + sizeof( gg_msg_richtext_format ) ) == FALSE ) {
return false;
};
memcpy( rtf.data() + csize, &rtfs, sizeof( rtfs ) );
// append color description, if color has changed
if ( rtfs.font & GG_FONT_COLOR ) {
csize = rtf.size();
if ( rtf.resize( csize + sizeof( gg_msg_richtext_color ) ) == FALSE ) {
return false;
};
memcpy( rtf.data() + csize, &rtcs, sizeof( rtcs ) );
}
}
return true;
}
QString
GaduRichTextFormat::escapeBody( TQString& input )
{
input.replace( '<', TQString::fromLatin1("&lt;") );
input.replace( '>', TQString::fromLatin1("&gt;") );
input.replace( '\n', TQString::fromLatin1( "<br />" ) );
input.replace( '\t', TQString::fromLatin1( "&nbsp;&nbsp;&nbsp;&nbsp;" ) );
input.replace( TQRegExp( TQString::fromLatin1( "\\s\\s" ) ), TQString::fromLatin1( " &nbsp;" ) );
return input;
}