372 lines
11 KiB
C++
372 lines
11 KiB
C++
/****************************************************************************
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**
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** This help window was modified from an example code by QT.
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** Original license:
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**
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** Copyright (C) 1992-1999 Troll Tech 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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//my modifications of the original source:
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//included .xpm in the source, removed 'about' buttons, added setSource,
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//removed tr() (didn't compile with Mandrake 7.0)
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//added hideEvent,showEvent
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#include "helpwindow.h"
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#include <qstatusbar.h>
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#include <qpixmap.h>
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#include <q3popupmenu.h>
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#include <qmenubar.h>
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#include <q3toolbar.h>
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#include <qtoolbutton.h>
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#include <qicon.h>
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#include <qfile.h>
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#include <q3textstream.h>
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#include <q3stylesheet.h>
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#include <qmessagebox.h>
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#include <q3filedialog.h>
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#include <qapplication.h>
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#include <qcombobox.h>
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#include <qevent.h>
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#include <qlineedit.h>
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#include <qobject.h>
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#include <qfileinfo.h>
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#include <qfile.h>
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#include <qdatastream.h>
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//Added by qt3to4:
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#include <QShowEvent>
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#include <Q3Frame>
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#include <QHideEvent>
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#include <QKeyEvent>
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#include <ctype.h>
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#include "home.xpm"
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#include "forward.xpm"
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#include "back.xpm"
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#include "menu.h"
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HelpWindow *helpwindow,*helpwindow1;
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HelpWindow::HelpWindow( const QString& home_, const QString& _path, QWidget* parent, const char *name )
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: Q3MainWindow( parent, name ), pathCombo( 0 ), selectedURL(),
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path( QFileInfo( home_ ).dirPath( TRUE ), "*.htm*" )
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{
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Q3StyleSheetItem* style;
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// Modify the application-wide default style sheet to handle
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// some extra HTML gracefully.
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//
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// Ignore any bodytext in <head>...</head>:
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style = new Q3StyleSheetItem( Q3StyleSheet::defaultSheet(), "head" );
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style->setDisplayMode(Q3StyleSheetItem::DisplayNone);
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//
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// Not in default style sheet, just fake it:
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style = new Q3StyleSheetItem( Q3StyleSheet::defaultSheet(), "dl" );
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style->setDisplayMode(Q3StyleSheetItem::DisplayBlock);
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style = new Q3StyleSheetItem( Q3StyleSheet::defaultSheet(), "dt" );
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style->setDisplayMode(Q3StyleSheetItem::DisplayBlock);
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style->setContexts("dl");
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//
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// Many HTML files omit the </p> or </li>, so we add this for efficiency:
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Q3StyleSheet::defaultSheet()->item("p")->setSelfNesting( FALSE );
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Q3StyleSheet::defaultSheet()->item("li")->setSelfNesting( FALSE );
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readHistory();
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readBookmarks();
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fileList = path.entryList();
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browser = new Q3TextBrowser( this );
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browser->mimeSourceFactory()->setFilePath( _path );
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browser->setFrameStyle( Q3Frame::Panel | Q3Frame::Sunken );
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connect( browser, SIGNAL( textChanged() ),
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this, SLOT( textChanged() ) );
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setCentralWidget( browser );
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if ( !home_.isEmpty() )
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browser->setSource( home_ );
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connect( browser, SIGNAL( highlighted( const QString&) ),
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statusBar(), SLOT( message( const QString&)) );
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resize( 640,700 );
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Q3PopupMenu* file = new Q3PopupMenu( this );
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file->insertItem( "&New Window", this, SLOT( newWindow() ), Qt::ALT | Qt::Key_N );
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file->insertItem( "&Open File", this, SLOT( openFile() ), Qt::ALT | Qt::Key_O );
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file->insertSeparator();
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file->insertItem( "&Close", this, SLOT( hide() ), Qt::ALT | Qt::Key_Q );
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Q3PopupMenu* go = new Q3PopupMenu( this );
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backwardId = go->insertItem( QPixmap(back),
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"&Backward", browser, SLOT( backward() ),
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Qt::ALT | Qt::Key_Left );
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forwardId = go->insertItem( QPixmap(forward_icon),
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"&Forward", browser, SLOT( forward() ),
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Qt::ALT | Qt::Key_Right );
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go->insertItem( QPixmap(home), "&Home", browser, SLOT( home() ) );
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hist = new Q3PopupMenu( this );
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QStringList::Iterator it = history.begin();
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for ( ; it != history.end(); ++it )
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mHistory[ hist->insertItem( *it ) ] = *it;
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connect( hist, SIGNAL( activated( int ) ),
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this, SLOT( histChosen( int ) ) );
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bookm = new Q3PopupMenu( this );
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bookm->insertItem( "Add Bookmark", this, SLOT( addBookmark() ) );
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bookm->insertSeparator();
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QStringList::Iterator it2 = bookmarks.begin();
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for ( ; it2 != bookmarks.end(); ++it2 )
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mBookmarks[ bookm->insertItem( *it2 ) ] = *it2;
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connect( bookm, SIGNAL( activated( int ) ),
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this, SLOT( bookmChosen( int ) ) );
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menuBar()->insertItem( "&File", file );
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menuBar()->insertItem( "&Go", go );
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menuBar()->insertItem( "History" , hist );
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menuBar()->insertItem( "Bookmarks" , bookm );
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menuBar()->setItemEnabled( forwardId, FALSE);
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menuBar()->setItemEnabled( backwardId, FALSE);
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connect( browser, SIGNAL( backwardAvailable( bool ) ),
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this, SLOT( setBackwardAvailable( bool ) ) );
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connect( browser, SIGNAL( forwardAvailable( bool ) ),
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this, SLOT( setForwardAvailable( bool ) ) );
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Q3ToolBar* toolbar = new Q3ToolBar( this );
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addToolBar( toolbar, "Toolbar");
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QToolButton* button;
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button = new QToolButton( QPixmap(back), "Backward", "", browser, SLOT(backward()), toolbar );
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connect( browser, SIGNAL( backwardAvailable(bool) ), button, SLOT( setEnabled(bool) ) );
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button->setEnabled( FALSE );
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button = new QToolButton( QPixmap(forward_icon), "Forward", "", browser, SLOT(forward()), toolbar );
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connect( browser, SIGNAL( forwardAvailable(bool) ), button, SLOT( setEnabled(bool) ) );
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button->setEnabled( FALSE );
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button = new QToolButton( QPixmap(home), "Home", "", browser, SLOT(home()), toolbar );
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toolbar->addSeparator();
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pathCombo = new QComboBox( TRUE, toolbar );
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connect( pathCombo, SIGNAL( activated( const QString & ) ),
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this, SLOT( pathSelected( const QString & ) ) );
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toolbar->setStretchableWidget( pathCombo );
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setRightJustification( TRUE );
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pathCombo->insertItem( home_ );
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pathCombo->installEventFilter( this );
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QObjectList l = queryList( "QLineEdit" );
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if ( l.size()>0 )
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( (QLineEdit*)l.at(0) )->installEventFilter( this );
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browser->setFocus();
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}
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void HelpWindow::setBackwardAvailable( bool b)
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{
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menuBar()->setItemEnabled( backwardId, b);
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}
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void HelpWindow::setForwardAvailable( bool b)
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{
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menuBar()->setItemEnabled( forwardId, b);
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}
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void HelpWindow::textChanged()
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{
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if ( browser->documentTitle().isNull() )
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setCaption( browser->context() );
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else
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setCaption( browser->documentTitle() ) ;
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selectedURL = caption();
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if ( !selectedURL.isEmpty() && pathCombo ) {
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path = QDir( QFileInfo( selectedURL ).dirPath( TRUE ), "*.htm*" );
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fileList = path.entryList();
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bool 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[ hist->insertItem( selectedURL ) ] = selectedURL;
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} else
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pathCombo->setCurrentItem( i );
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selectedURL = QString::null;
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}
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}
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HelpWindow::~HelpWindow()
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{
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history.clear();
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QMap<int, QString>::Iterator it = mHistory.begin();
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for ( ; it != mHistory.end(); ++it )
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history.append( *it );
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QFile f( QDir::currentDirPath() + "/.history" );
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f.open( QIODevice::WriteOnly );
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QDataStream s( &f );
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s << history;
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f.close();
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bookmarks.clear();
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QMap<int, QString>::Iterator it2 = mBookmarks.begin();
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for ( ; it2 != mBookmarks.end(); ++it2 )
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bookmarks.append( *it2 );
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QFile f2( QDir::currentDirPath() + "/.bookmarks" );
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f2.open( QIODevice::WriteOnly );
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QDataStream s2( &f2 );
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s2 << bookmarks;
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f2.close();
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}
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void HelpWindow::openFile()
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{
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QString fn = Q3FileDialog::getOpenFileName( QString::null, QString::null, this );
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if ( !fn.isEmpty() )
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browser->setSource( fn );
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}
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void HelpWindow::setSource(char *filename)
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{
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browser->setSource( filename );
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}
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void HelpWindow::newWindow()
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{
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( new HelpWindow(browser->source(), "qbrowser") )->show();
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}
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void HelpWindow::pathSelected( const QString &_path )
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{
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browser->setSource( _path );
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path = QDir( QFileInfo( _path ).dirPath( TRUE ), "*.htm*" );
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fileList = path.entryList();
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QMap<int, QString>::Iterator it = mHistory.begin();
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bool exists = FALSE;
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for ( ; it != mHistory.end(); ++it ) {
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if ( *it == _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[ hist->insertItem( _path ) ] = _path;
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}
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bool HelpWindow::eventFilter( QObject * o, QEvent * e )
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{
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QObjectList l = queryList( "QLineEdit" );
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if ( l.empty() )
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return FALSE;
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QLineEdit *lined = (QLineEdit*)l.at(0);
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if ( ( o == pathCombo || o == lined ) &&
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e->type() == QEvent::KeyPress ) {
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if ( isprint(((QKeyEvent *)e)->ascii()) ) {
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if ( lined->hasMarkedText() )
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lined->del();
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QString nt( lined->text() );
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nt.remove( 0, nt.findRev( '/' ) + 1 );
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nt.truncate( lined->cursorPosition() );
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nt += (char)(((QKeyEvent *)e)->ascii());
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QStringList::Iterator it = fileList.begin();
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while ( it != fileList.end() && (*it).left( nt.length() ) != nt )
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++it;
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if ( !(*it).isEmpty() ) {
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nt = *it;
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int cp = lined->cursorPosition() + 1;
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int l = path.canonicalPath().length() + 1;
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lined->validateAndSet( path.canonicalPath() + "/" + nt, cp, cp, l + nt.length() );
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return TRUE;
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}
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}
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}
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return FALSE;
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}
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void HelpWindow::readHistory()
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{
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if ( QFile::exists( QDir::currentDirPath() + "/.history" ) ) {
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QFile f( QDir::currentDirPath() + "/.history" );
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f.open( QIODevice::ReadOnly );
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QDataStream s( &f );
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s >> history;
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f.close();
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while ( history.count() > 20 )
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history.remove( history.begin() );
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}
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}
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void HelpWindow::readBookmarks()
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{
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if ( QFile::exists( QDir::currentDirPath() + "/.bookmarks" ) ) {
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QFile f( QDir::currentDirPath() + "/.bookmarks" );
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f.open( QIODevice::ReadOnly );
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QDataStream s( &f );
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s >> bookmarks;
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f.close();
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}
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}
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void HelpWindow::histChosen( int i )
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{
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if ( mHistory.contains( i ) )
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browser->setSource( mHistory[ i ] );
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}
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void HelpWindow::bookmChosen( int i )
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{
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if ( mBookmarks.contains( i ) )
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browser->setSource( mBookmarks[ i ] );
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}
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void HelpWindow::addBookmark()
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{
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mBookmarks[ bookm->insertItem( caption() ) ] = caption();
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}
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//*********************************************
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void HelpWindow::hideEvent( QHideEvent * )
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{
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if(window_list && window_list->isVisible())window_list->draw();
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}
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//*********************************************
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void HelpWindow::showEvent( QShowEvent * )
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{
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if(window_list && window_list->isVisible())window_list->draw();
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}
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