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365 lines
11 KiB
365 lines
11 KiB
/***************************************************************************
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* $Id$
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**
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* Copyright (C) 1992-2000 Trolltech AS. All rights reserved.
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**
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* This file is part of an example program for Qt. This example
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* program may be used, distributed and modified without limitation.
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**
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****************************************************************************/
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import org.trinitydesktop.qt.*;
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import java.util.*;
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class HelpWindow extends TQMainWindow
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{
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private TQTextBrowser browser;
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private TQComboBox pathCombo;
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private int backwardId, forwardId;
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private String selectedURL;
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private ArrayList history = new ArrayList();
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private ArrayList bookmarks = new ArrayList();
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private HashMap mHistory = new HashMap();
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private HashMap mBookmarks = new HashMap();
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private TQPopupMenu hist, bookm;
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HelpWindow( String home_, String _path )
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{
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this(home_, _path, null, null);
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}
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HelpWindow( String home_, String _path,
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TQWidget parent, String name )
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{
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super( parent, name, WDestructiveClose );
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readHistory();
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readBookmarks();
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browser = new TQTextBrowser( this );
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browser.mimeSourceFactory().setFilePath( new String[] { _path } );
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browser.setFrameStyle( TQFrame.Panel | TQFrame.Sunken );
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connect( browser, TQ_SIGNAL(" textChanged()"),
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this, TQ_SLOT(" textChanged()") );
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setCentralWidget( browser );
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if ( !home_.equals("") )
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browser.setSource( home_ );
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connect( browser, TQ_SIGNAL(" highlighted( String)"),
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statusBar(), TQ_SLOT(" message( String)") );
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resize( 640,700 );
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TQPopupMenu file = new TQPopupMenu( this );
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file.insertItem( tr("&New Window"), this, TQ_SLOT(" newWindow()"), new TQKeySequence(CTRL+Key_N) );
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file.insertItem( tr("&Open File"), this, TQ_SLOT(" openFile()"), new TQKeySequence(CTRL+Key_O) );
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file.insertItem( tr("&Print"), this, TQ_SLOT(" print()"), new TQKeySequence(CTRL+Key_P) );
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file.insertSeparator();
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file.insertItem( tr("&Close"), this, TQ_SLOT(" close()"), new TQKeySequence(CTRL+Key_Q) );
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file.insertItem( tr("E&xit"), tqApp(), TQ_SLOT(" closeAllWindows()"), new TQKeySequence(CTRL+Key_X) );
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// The same three icons are used twice each.
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TQIconSet icon_back = new TQIconSet( new TQPixmap("back.xpm") );
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TQIconSet icon_forward = new TQIconSet( new TQPixmap("forward.xpm") );
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TQIconSet icon_home = new TQIconSet( new TQPixmap("home.xpm") );
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TQPopupMenu go = new TQPopupMenu( this );
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backwardId = go.insertItem( icon_back,
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tr("&Backward"), browser, TQ_SLOT(" backward()"),
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new TQKeySequence(CTRL+Key_Left) );
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forwardId = go.insertItem( icon_forward,
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tr("&Forward"), browser, TQ_SLOT(" forward()"),
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new TQKeySequence(CTRL+Key_Right) );
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go.insertItem( icon_home, tr("&Home"), browser, TQ_SLOT(" home()") );
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TQPopupMenu help = new TQPopupMenu( this );
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help.insertItem( tr("&About ..."), this, TQ_SLOT(" about()") );
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help.insertItem( tr("About &Qt ..."), this, TQ_SLOT(" aboutTQt()") );
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hist = new TQPopupMenu( this );
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Iterator it = history.iterator();
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while (it.hasNext()) {
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String item = (String) it.next();
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mHistory.put(new Integer(hist.insertItem( item )), item);
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}
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connect( hist, TQ_SIGNAL(" activated( int )"),
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this, TQ_SLOT(" histChosen( int )") );
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bookm = new TQPopupMenu( this );
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bookm.insertItem( tr( "Add Bookmark" ), this, TQ_SLOT(" addBookmark()") );
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bookm.insertSeparator();
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Iterator it2 = bookmarks.iterator();
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while (it2.hasNext()) {
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String item = (String) it2.next();
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mBookmarks.put(new Integer(bookm.insertItem( item )), item);
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}
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connect( bookm, TQ_SIGNAL(" activated( int )"),
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this, TQ_SLOT(" bookmChosen( int )") );
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menuBar().insertItem( tr("&File"), file );
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menuBar().insertItem( tr("&Go"), go );
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menuBar().insertItem( tr( "History" ), hist );
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menuBar().insertItem( tr( "Bookmarks" ), bookm );
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menuBar().insertSeparator();
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menuBar().insertItem( tr("&Help"), help );
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menuBar().setItemEnabled( forwardId, false);
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menuBar().setItemEnabled( backwardId, false);
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connect( browser, TQ_SIGNAL(" backwardAvailable( boolean )"),
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this, TQ_SLOT(" setBackwardAvailable( boolean )") );
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connect( browser, TQ_SIGNAL(" forwardAvailable( boolean )"),
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this, TQ_SLOT(" setForwardAvailable( boolean )") );
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TQToolBar toolbar = new TQToolBar( this );
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addToolBar( toolbar, "Toolbar");
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TQToolButton button;
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button = new TQToolButton( icon_back, tr("Backward"), "", browser, TQ_SLOT("backward()"), toolbar );
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connect( browser, TQ_SIGNAL(" backwardAvailable(boolean)"), button, TQ_SLOT(" setEnabled(boolean)") );
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button.setEnabled( false );
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button = new TQToolButton( icon_forward, tr("Forward"), "", browser, TQ_SLOT("forward()"), toolbar );
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connect( browser, TQ_SIGNAL(" forwardAvailable(boolean)"), button, TQ_SLOT(" setEnabled(boolean)") );
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button.setEnabled( false );
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button = new TQToolButton( icon_home, tr("Home"), "", browser, TQ_SLOT("home()"), toolbar );
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toolbar.addSeparator();
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pathCombo = new TQComboBox( true, toolbar );
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connect( pathCombo, TQ_SIGNAL(" activated( String )"),
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this, TQ_SLOT(" pathSelected( String )") );
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toolbar.setStretchableWidget( pathCombo );
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setRightJustification( true );
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setDockEnabled( DockLeft, false );
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setDockEnabled( DockRight, false );
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pathCombo.insertItem( home_ );
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browser.setFocus();
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}
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void setBackwardAvailable( boolean b)
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{
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menuBar().setItemEnabled( backwardId, b);
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}
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void setForwardAvailable( boolean b)
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{
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menuBar().setItemEnabled( forwardId, b);
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}
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void textChanged()
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{
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if ( browser.documentTitle() == null ) {
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setCaption( "Qt Example - Helpviewer - " + browser.context() );
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selectedURL = browser.context();
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}
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else {
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setCaption( "Qt Example - Helpviewer - " + browser.documentTitle() ) ;
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selectedURL = browser.documentTitle();
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}
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if ( !selectedURL.equals("") && pathCombo != null ) {
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boolean exists = false;
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int i;
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for ( i = 0; i < pathCombo.count(); ++i ) {
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if ( pathCombo.text( i ) == selectedURL ) {
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exists = true;
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break;
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}
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}
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if ( !exists ) {
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pathCombo.insertItem( selectedURL, 0 );
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pathCombo.setCurrentItem( 0 );
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mHistory.put( new Integer(hist.insertItem( selectedURL )), selectedURL);
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} else
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pathCombo.setCurrentItem( i );
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selectedURL = null;
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}
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}
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public void cleanUp()
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{
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history.clear();
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Iterator it = mHistory.values().iterator();
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while (it.hasNext())
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history.add(it.next());
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TQFile f = new TQFile( TQDir.currentDirPath() + "/.history" );
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f.open( TQIODevice.IO_WriteOnly );
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TQTextStream t = new TQTextStream( f );
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Iterator it1 = history.iterator();
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while (it1.hasNext()) {
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String item = (String) it1.next();
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t.writeRawBytes( item, item.length() );
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t.writeRawBytes( "\n", 1 );
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}
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f.close();
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bookmarks.clear();
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Iterator it3 = mBookmarks.values().iterator();
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while (it3.hasNext())
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bookmarks.add(it3.next());
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TQFile f2 = new TQFile( TQDir.currentDirPath() + "/.bookmarks" );
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f2.open( TQIODevice.IO_WriteOnly );
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TQTextStream t2 = new TQTextStream( f2 );
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Iterator it2 = bookmarks.iterator();
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while (it2.hasNext()) {
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String item = (String) it2.next();
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t2.writeRawBytes( item, item.length() );
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t2.writeRawBytes( "\n", 1 );
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}
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f2.close();
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}
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void about()
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{
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TQMessageBox.about( this, "HelpViewer Example",
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"<p>This example implements a simple HTML help viewer "
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+ "using Qt's rich text capabilities</p>"
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+ "<p>It's just about 100 lines of Java code, so don't expect too much :-)</p>"
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);
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}
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void aboutTQt()
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{
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TQMessageBox.aboutTQt( this, "TQBrowser" );
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}
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void openFile()
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{
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String fn = TQFileDialog.getOpenFileName( "", "", this );
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if ( !fn.equals("") )
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browser.setSource( fn );
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}
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void newWindow()
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{
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( new HelpWindow(browser.source(), "qbrowser") ).show();
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}
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void print()
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{
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TQPrinter printer = new TQPrinter();//(TQPrinter.HighResolution );
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printer.setFullPage(true);
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if ( printer.setup( this ) ) {
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TQPainter p = new TQPainter( printer );
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TQPaintDeviceMetrics metrics = new TQPaintDeviceMetrics(p.device());
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int dpix = metrics.logicalDpiX();
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int dpiy = metrics.logicalDpiY();
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int margin = 72; // pt
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TQRect body = new TQRect(margin*dpix/72, margin*dpiy/72,
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metrics.width()-margin*dpix/72*2,
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metrics.height()-margin*dpiy/72*2 );
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TQFont font = new TQFont("times", 10);
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ArrayList filePaths = browser.mimeSourceFactory().filePath();
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String file = "";
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Iterator it = filePaths.iterator();
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while (it.hasNext()) {
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file = new TQUrl( new TQUrl((String) it.next()), new TQUrl( browser.source() ).path() ).path();
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if ( TQFile.exists( file ) )
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break;
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else
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file = "";
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}
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if ( file.equals("") )
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return;
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TQFile f = new TQFile( file );
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if ( !f.open( TQIODevice.IO_ReadOnly ) )
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return;
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TQTextStream ts = new TQTextStream( f );
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TQSimpleRichText richText = new TQSimpleRichText( ts.read(), font, browser.context(), browser.styleSheet(),
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browser.mimeSourceFactory(), body.height() );
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richText.setWidth( p, body.width() );
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TQRect view = new TQRect( body.topLeft(), body.bottomRight() );
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int page = 1;
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do {
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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.setFont( font );
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p.drawText( view.right() - p.fontMetrics().width( new Integer(page).toString() ),
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view.bottom() + p.fontMetrics().ascent() + 5, new Integer(page).toString() );
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if ( view.top() >= richText.height() )
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break;
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printer.newPage();
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page++;
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} while (true);
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}
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}
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void pathSelected( String _path )
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{
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browser.setSource( _path );
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Iterator it = mHistory.values().iterator();
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boolean exists = false;
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while (it.hasNext()) {
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if ( ((String) it.next()).equals(_path) ) {
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exists = true;
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break;
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}
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}
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if ( !exists )
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mHistory.put( new Integer(hist.insertItem( _path )), _path);
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}
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void readHistory()
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{
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if ( TQFile.exists( TQDir.currentDirPath() + "/.history" ) ) {
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TQFile f = new TQFile( TQDir.currentDirPath() + "/.history" );
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f.open( TQIODevice.IO_ReadOnly );
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TQTextStream t = new TQTextStream( f );
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while ( !t.atEnd() ) {
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String item = t.readLine();
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history.add((Object) item);
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}
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f.close();
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while ( history.size() > 20 )
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history.remove( 0 );
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}
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}
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void readBookmarks()
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{
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if ( TQFile.exists( TQDir.currentDirPath() + "/.bookmarks" ) ) {
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TQFile f = new TQFile( TQDir.currentDirPath() + "/.bookmarks" );
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f.open( TQIODevice.IO_ReadOnly );
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TQTextStream t = new TQTextStream( f );
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while ( !t.atEnd() ) {
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String item = t.readLine();
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bookmarks.add((Object) item);
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}
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f.close();
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}
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}
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void histChosen( int i )
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{
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if ( mHistory.containsKey( new Integer(i) ) )
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browser.setSource( (String) mHistory.get( new Integer(i) ) );
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}
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void bookmChosen( int i )
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{
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if ( mBookmarks.containsKey( new Integer(i) ) )
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browser.setSource( (String) mBookmarks.get( new Integer(i) ) );
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}
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void addBookmark()
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{
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mBookmarks.put( new Integer(bookm.insertItem( caption() )), browser.context() );
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}
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}
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