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271 lines
7.5 KiB
271 lines
7.5 KiB
/***************************************************************************
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* Copyright (C) 2004-2007 by Georgy Yunaev, gyunaev@ulduzsoft.com *
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* Please do not use email address above for bug reports; see *
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* the README file *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
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***************************************************************************/
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#include <tqprinter.h>
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#include <tqpainter.h>
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#include <tqsimplerichtext.h>
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#include <tqpaintdevicemetrics.h>
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#include "tde-tqt.h"
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#include "kchmmainwindow.h"
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#include "kchmviewwindow_qtextbrowser.h"
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/*
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* If defined, all the data viewed is kept in source factory. It increases the response time
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* when a user opens the page he has already seen, in cost of everything which has been opened
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* is stored in memory, increasing memory usage.
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*
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* If not defined, on any page change the source factory cleans up, saving the memory, but
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* increasing the page loading time in case the page has the same images, or the page is opened
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* second time.
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*/
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#define KEEP_ALL_OPENED_DATA_IN_SOURCE_FACTORY
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KCHMViewWindow_QTextBrowser::KCHMViewWindow_QTextBrowser( TQTabWidget * parent )
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: TQTextBrowser ( parent ), KCHMViewWindow ( parent )
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{
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m_zoomfactor = 0;
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m_sourcefactory = 0;
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invalidate();
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setTextFormat ( TQt::RichText );
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connect( this, TQ_SIGNAL( linkClicked (const TQString &) ), this, TQ_SLOT( slotLinkClicked(const TQString &) ) );
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}
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KCHMViewWindow_QTextBrowser::~KCHMViewWindow_QTextBrowser()
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{
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delete m_sourcefactory;
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}
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bool KCHMViewWindow_QTextBrowser::openPage (const TQString& url)
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{
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// If we're using a memory saving scheme, we destroy MimeSourceFactory (including all the stored data)
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// when opening a new page. It saves some memory, but spends more time while looking for already loaded
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// images and HTML pages
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#if !defined (KEEP_ALL_OPENED_DATA_IN_SOURCE_FACTORY)
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delete m_sourcefactory;
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m_sourcefactory = new KCHMSourceFactory;
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setMimeSourceFactory (m_sourcefactory);
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#endif
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setSource (url);
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return true;
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}
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void KCHMViewWindow_QTextBrowser::setSource ( const TQString & name )
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{
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if ( m_allowSourceChange )
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{
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// Do URI decoding, qtextbrowser does stupid job.
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TQString fixedname = decodeUrl( name );
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TQTextBrowser::setSource (fixedname);
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}
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else
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m_allowSourceChange = true;
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}
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void KCHMViewWindow_QTextBrowser::setZoomFactor( int zoom )
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{
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m_zoomfactor = zoom;
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if ( zoom < 0 )
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TQTextBrowser::zoomOut( -zoom );
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else if ( zoom > 0 )
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TQTextBrowser::zoomIn( zoom);
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}
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void KCHMViewWindow_QTextBrowser::invalidate( )
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{
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delete m_sourcefactory;
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m_sourcefactory = new KCHMSourceFactory (this);
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setMimeSourceFactory (m_sourcefactory);
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m_zoomfactor = 0;
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m_allowSourceChange = true;
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m_searchLastIndex = 0;
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m_searchLastParagraph = 0;
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m_searchText = TQString();
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reload();
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KCHMViewWindow::invalidate( );
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}
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int KCHMViewWindow_QTextBrowser::getScrollbarPosition( )
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{
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return contentsY ();
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}
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void KCHMViewWindow_QTextBrowser::setScrollbarPosition( int pos )
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{
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setContentsPos (0, pos);
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}
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void KCHMViewWindow_QTextBrowser::addZoomFactor( int value )
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{
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setZoomFactor( value);
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}
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void KCHMViewWindow_QTextBrowser::slotLinkClicked( const TQString & newlink )
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{
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emit signalLinkClicked (newlink, m_allowSourceChange);
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}
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bool KCHMViewWindow_QTextBrowser::printCurrentPage( )
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{
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#if !defined (TQT_NO_PRINTER)
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TQPrinter printer( TQPrinter::HighResolution );
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printer.setFullPage(TRUE);
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if ( printer.setup( this ) )
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{
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TQPainter p( &printer );
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if( !p.isActive() ) // starting printing failed
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return false;
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TQPaintDeviceMetrics metrics(p.device());
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int dpiy = metrics.logicalDpiY();
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int margin = (int) ( (2/2.54)*dpiy ); // 2 cm margins
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TQRect body( margin, margin, metrics.width() - 2*margin, metrics.height() - 2*margin );
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TQSimpleRichText richText( text(),
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TQFont(),
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context(),
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styleSheet(),
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mimeSourceFactory(),
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body.height() );
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richText.setWidth( &p, body.width() );
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TQRect view( body );
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int page = 1;
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do
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{
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richText.draw( &p, body.left(), body.top(), view, colorGroup() );
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view.moveBy( 0, body.height() );
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p.translate( 0 , -body.height() );
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p.drawText( view.right() - p.fontMetrics().width( TQString::number(page) ),
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view.bottom() + p.fontMetrics().ascent() + 5, TQString::number(page) );
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if ( view.top() >= richText.height() )
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break;
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TQString msg = i18n( "Printing (page %1)...") .arg(page);
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::mainWindow->showInStatusBar( msg );
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printer.newPage();
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page++;
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}
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while (TRUE);
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::mainWindow->showInStatusBar( i18n( "Printing completed") );
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return true;
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}
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::mainWindow->showInStatusBar( i18n( "Printing aborted") );
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return false;
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#else /* TQT_NO_PRINTER */
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TQMessageBox::warning( this,
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i18n( "%1 - could not print") . arg(APP_NAME),
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i18n( "Could not print.\nYour TQt library has been compiled without printing support");
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return false;
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#endif /* TQT_NO_PRINTER */
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}
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void KCHMViewWindow_QTextBrowser::searchWord( const TQString & word, bool forward, bool )
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{
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if ( m_searchText == word )
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{
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if ( forward && (m_searchLastIndex || m_searchLastParagraph) )
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m_searchLastIndex += m_searchText.length();
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}
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else
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{
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m_searchLastParagraph = m_searchLastIndex = 0;
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m_searchText = word;
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}
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if ( find (m_searchText, false, false, forward, &m_searchLastParagraph, &m_searchLastIndex) )
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::mainWindow->showInStatusBar( i18n( "Search failed") );
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}
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void KCHMViewWindow_QTextBrowser::clipSelectAll( )
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{
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selectAll (TRUE);
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}
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void KCHMViewWindow_QTextBrowser::clipCopy( )
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{
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copy ();
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}
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// Shamelessly stolen from TQt
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TQString KCHMViewWindow_QTextBrowser::decodeUrl( const TQString &input )
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{
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TQString temp;
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int i = 0;
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int len = input.length();
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int a, b;
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TQChar c;
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while (i < len)
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{
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c = input[i];
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if (c == '%' && i + 2 < len)
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{
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a = input[++i];
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b = input[++i];
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if (a >= '0' && a <= '9') a -= '0';
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else if (a >= 'a' && a <= 'f') a = a - 'a' + 10;
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else if (a >= 'A' && a <= 'F') a = a - 'A' + 10;
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if (b >= '0' && b <= '9') b -= '0';
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else if (b >= 'a' && b <= 'f') b = b - 'a' + 10;
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else if (b >= 'A' && b <= 'F') b = b - 'A' + 10;
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temp.append( (TQChar)((a << 4) | b ) );
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}
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else
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{
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temp.append( c );
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}
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++i;
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}
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return temp;
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}
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TQPopupMenu * KCHMViewWindow_QTextBrowser::createPopupMenu( const TQPoint & pos )
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{
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KTQPopupMenu * menu = getContextMenu( anchorAt( pos ), this );
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menu->exec( mapToGlobal( contentsToViewport( pos ) ) );
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return 0;
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}
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#include "kchmviewwindow_qtextbrowser.moc"
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