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- /****************************************************************************
- ** $Id: qt/textedit.cpp 3.0.3 edited Oct 12 12:18 $
- **
- ** Copyright (C) 1992-2000 Trolltech AS. All rights reserved.
- **
- ** This file is part of an example program for Qt. This example
- ** program may be used, distributed and modified without limitation.
- **
- *****************************************************************************/
-
- #include "textedit.h"
-
- #include <qtextedit.h>
- #include <qaction.h>
- #include <qmenubar.h>
- #include <qpopupmenu.h>
- #include <qtoolbar.h>
- #include <qtabwidget.h>
- #include <qapplication.h>
- #include <qfontdatabase.h>
- #include <qcombobox.h>
- #include <qlineedit.h>
- #include <qfileinfo.h>
- #include <qfile.h>
- #include <qfiledialog.h>
- #include <qprinter.h>
- #include <qpaintdevicemetrics.h>
- #include <qsimplerichtext.h>
- #include <qcolordialog.h>
- #include <qpainter.h>
-
- TextEdit::TextEdit( QWidget *parent, const char *name )
- : QMainWindow( parent, name, 0 )
- {
- setupFileActions();
- setupEditActions();
- setupTextActions();
-
- tabWidget = new QTabWidget( this );
- connect( tabWidget, SIGNAL( currentChanged( QWidget * ) ),
- this, SLOT( editorChanged( QWidget * ) ) );
- setCentralWidget( tabWidget );
- }
-
- void TextEdit::setupFileActions()
- {
- QToolBar *tb = new QToolBar( this );
- QPopupMenu *menu = new QPopupMenu( this );
- menuBar()->insertItem( tr( "&File" ), menu );
-
- QAction *a;
- a = new QAction( tr( "New" ), QPixmap( "textdrawing/filenew.xpm" ), tr( "&New..." ), CTRL + Key_N, this, "fileNew" );
- connect( a, SIGNAL( activated() ), this, SLOT( fileNew() ) );
- a->addTo( tb );
- a->addTo( menu );
- a = new QAction( tr( "Open" ), QPixmap( "textdrawing/fileopen.xpm" ), tr( "&Open..." ), CTRL + Key_O, this, "fileOpen" );
- connect( a, SIGNAL( activated() ), this, SLOT( fileOpen() ) );
- a->addTo( tb );
- a->addTo( menu );
- menu->insertSeparator();
- a = new QAction( tr( "Save" ), QPixmap( "textdrawing/filesave.xpm" ), tr( "&Save..." ), CTRL + Key_S, this, "fileSave" );
- connect( a, SIGNAL( activated() ), this, SLOT( fileSave() ) );
- a->addTo( tb );
- a->addTo( menu );
- a = new QAction( tr( "Save As" ), QPixmap(), tr( "Save &As..." ), 0, this, "fileSaveAs" );
- connect( a, SIGNAL( activated() ), this, SLOT( fileSaveAs() ) );
- a->addTo( menu );
- menu->insertSeparator();
- a = new QAction( tr( "Print" ), QPixmap( "textdrawing/fileprint.xpm" ), tr( "&Print..." ), CTRL + Key_P, this, "filePrint" );
- connect( a, SIGNAL( activated() ), this, SLOT( filePrint() ) );
- a->addTo( tb );
- a->addTo( menu );
- a = new QAction( tr( "Close" ), QPixmap(), tr( "&Close" ), 0, this, "fileClose" );
- connect( a, SIGNAL( activated() ), this, SLOT( fileClose() ) );
- a->addTo( menu );
- }
-
- void TextEdit::setupEditActions()
- {
- QToolBar *tb = new QToolBar( this );
- QPopupMenu *menu = new QPopupMenu( this );
- menuBar()->insertItem( tr( "&Edit" ), menu );
-
- QAction *a;
- a = new QAction( tr( "Undo" ), QPixmap( "textdrawing/editundo.xpm" ), tr( "&Undo" ), CTRL + Key_Z, this, "editUndo" );
- connect( a, SIGNAL( activated() ), this, SLOT( editUndo() ) );
- a->addTo( tb );
- a->addTo( menu );
- a = new QAction( tr( "Redo" ), QPixmap( "textdrawing/editredo.xpm" ), tr( "&Redo" ), CTRL + Key_Y, this, "editRedo" );
- connect( a, SIGNAL( activated() ), this, SLOT( editRedo() ) );
- a->addTo( tb );
- a->addTo( menu );
- menu->insertSeparator();
- a = new QAction( tr( "Cut" ), QPixmap( "textdrawing/editcut.xpm" ), tr( "&Cut" ), CTRL + Key_X, this, "editCut" );
- connect( a, SIGNAL( activated() ), this, SLOT( editCut() ) );
- a->addTo( tb );
- a->addTo( menu );
- a = new QAction( tr( "Copy" ), QPixmap( "textdrawing/editcopy.xpm" ), tr( "C&opy" ), CTRL + Key_C, this, "editCopy" );
- connect( a, SIGNAL( activated() ), this, SLOT( editUndo() ) );
- a->addTo( tb );
- a->addTo( menu );
- a = new QAction( tr( "Paste" ), QPixmap( "textdrawing/editpaste.xpm" ), tr( "&Paste" ), CTRL + Key_V, this, "editPaste" );
- connect( a, SIGNAL( activated() ), this, SLOT( editPaste() ) );
- a->addTo( tb );
- a->addTo( menu );
- }
-
- void TextEdit::setupTextActions()
- {
- QToolBar *tb = new QToolBar( this );
- QPopupMenu *menu = new QPopupMenu( this );
- menuBar()->insertItem( tr( "For&mat" ), menu );
-
- comboStyle = new QComboBox( FALSE, tb );
- comboStyle->insertItem( tr("Standard") );
- comboStyle->insertItem( tr("Bullet List (Disc)") );
- comboStyle->insertItem( tr("Bullet List (Circle)") );
- comboStyle->insertItem( tr("Bullet List (Square)") );
- comboStyle->insertItem( tr("Ordered List (Decimal)") );
- comboStyle->insertItem( tr("Ordered List (Alpha lower)") );
- comboStyle->insertItem( tr("Ordered List (Alpha upper)") );
- connect( comboStyle, SIGNAL( activated( int ) ),
- this, SLOT( textStyle( int ) ) );
-
- comboFont = new QComboBox( TRUE, tb );
- QFontDatabase db;
- comboFont->insertStringList( db.families() );
- connect( comboFont, SIGNAL( activated( const QString & ) ),
- this, SLOT( textFamily( const QString & ) ) );
- comboFont->lineEdit()->setText( QApplication::font().family() );
-
- comboSize = new QComboBox( TRUE, tb );
- QValueList<int> sizes = db.standardSizes();
- QValueList<int>::Iterator it = sizes.begin();
- for ( ; it != sizes.end(); ++it )
- comboSize->insertItem( QString::number( *it ) );
- connect( comboSize, SIGNAL( activated( const QString & ) ),
- this, SLOT( textSize( const QString & ) ) );
- comboSize->lineEdit()->setText( QString::number( QApplication::font().pointSize() ) );
-
- actionTextBold = new QAction( tr( "Bold" ), QPixmap( "textdrawing/textbold.xpm" ), tr( "&Bold" ), CTRL + Key_B, this, "textBold" );
- connect( actionTextBold, SIGNAL( activated() ), this, SLOT( textBold() ) );
- actionTextBold->addTo( tb );
- actionTextBold->addTo( menu );
- actionTextBold->setToggleAction( TRUE );
- actionTextItalic = new QAction( tr( "Italic" ), QPixmap( "textdrawing/textitalic.xpm" ), tr( "&Italic" ), CTRL + Key_I, this, "textItalic" );
- connect( actionTextItalic, SIGNAL( activated() ), this, SLOT( textItalic() ) );
- actionTextItalic->addTo( tb );
- actionTextItalic->addTo( menu );
- actionTextItalic->setToggleAction( TRUE );
- actionTextUnderline = new QAction( tr( "Underline" ), QPixmap( "textdrawing/textunder.xpm" ), tr( "&Underline" ), CTRL + Key_U, this, "textUnderline" );
- connect( actionTextUnderline, SIGNAL( activated() ), this, SLOT( textUnderline() ) );
- actionTextUnderline->addTo( tb );
- actionTextUnderline->addTo( menu );
- actionTextUnderline->setToggleAction( TRUE );
- menu->insertSeparator();
-
- QActionGroup *grp = new QActionGroup( this );
- grp->setExclusive( TRUE );
- connect( grp, SIGNAL( selected( QAction* ) ), this, SLOT( textAlign( QAction* ) ) );
-
- actionAlignLeft = new QAction( tr( "Left" ), QPixmap( "textdrawing/textleft.xpm" ), tr( "&Left" ), CTRL + Key_L, grp, "textLeft" );
- actionAlignLeft->addTo( tb );
- actionAlignLeft->addTo( menu );
- actionAlignLeft->setToggleAction( TRUE );
- actionAlignCenter = new QAction( tr( "Center" ), QPixmap( "textdrawing/textcenter.xpm" ), tr( "C&enter" ), CTRL + Key_M, grp, "textCenter" );
- actionAlignCenter->addTo( tb );
- actionAlignCenter->addTo( menu );
- actionAlignCenter->setToggleAction( TRUE );
- actionAlignRight = new QAction( tr( "Right" ), QPixmap( "textdrawing/textright.xpm" ), tr( "&Right" ), CTRL + Key_R, grp, "textRight" );
- actionAlignRight->addTo( tb );
- actionAlignRight->addTo( menu );
- actionAlignRight->setToggleAction( TRUE );
- actionAlignJustify = new QAction( tr( "Justify" ), QPixmap( "textdrawing/textjustify.xpm" ), tr( "&Justify" ), CTRL + Key_J, grp, "textjustify" );
- actionAlignJustify->addTo( tb );
- actionAlignJustify->addTo( menu );
- actionAlignJustify->setToggleAction( TRUE );
-
- menu->insertSeparator();
-
- QPixmap pix( 16, 16 );
- pix.fill( black );
- actionTextColor = new QAction( tr( "Color" ), pix, tr( "&Color..." ), 0, this, "textColor" );
- connect( actionTextColor, SIGNAL( activated() ), this, SLOT( textColor() ) );
- actionTextColor->addTo( tb );
- actionTextColor->addTo( menu );
- }
-
- void TextEdit::load( const QString &f )
- {
- if ( !QFile::exists( f ) )
- return;
- QTextEdit *edit = new QTextEdit( tabWidget );
- doConnections( edit );
- tabWidget->addTab( edit, QFileInfo( f ).fileName() );
-
- QFile fl( f );
- fl.open( IO_ReadOnly );
- QByteArray array = fl.readAll();
- array.resize( array.size() +1 );
- array[ (int)array.size() - 1 ] = '\0';
- QString text = ( f.find( "bidi.txt" ) != -1 ? QString::fromUtf8( array.data() ) : QString::fromLatin1( array.data() ) );
- edit->setText( text );
-
- edit->viewport()->setFocus();
- edit->setTextFormat( Qt::RichText );
- }
-
- QTextEdit *TextEdit::currentEditor() const
- {
- if ( tabWidget->currentPage() &&
- tabWidget->currentPage()->inherits( "QTextEdit" ) )
- return (QTextEdit*)tabWidget->currentPage();
- return 0;
- }
-
- void TextEdit::doConnections( QTextEdit *e )
- {
- connect( e, SIGNAL( currentFontChanged( const QFont & ) ),
- this, SLOT( fontChanged( const QFont & ) ) );
- connect( e, SIGNAL( currentColorChanged( const QColor & ) ),
- this, SLOT( colorChanged( const QColor & ) ) );
- connect( e, SIGNAL( currentAlignmentChanged( int ) ),
- this, SLOT( alignmentChanged( int ) ) );
- }
-
- void TextEdit::fileNew()
- {
- QTextEdit *edit = new QTextEdit( tabWidget );
- doConnections( edit );
- tabWidget->addTab( edit, tr( "noname" ) );
- tabWidget->showPage( edit );
- edit->viewport()->setFocus();
- }
-
- void TextEdit::fileOpen()
- {
- QString fn = QFileDialog::getOpenFileName( QString::null, tr( "HTML-Files (*.htm *.html);;All Files (*)" ), this );
- if ( !fn.isEmpty() )
- load( fn );
- }
-
- void TextEdit::fileSave()
- {
- if ( !currentEditor() )
- return;
- QString fn;
- if ( filenames.find( currentEditor() ) == filenames.end() ) {
- fileSaveAs();
- } else {
- QFile file( *filenames.find( currentEditor() ) );
- if ( !file.open( IO_WriteOnly ) )
- return;
- QTextStream ts( &file );
- ts << currentEditor()->text();
- }
- }
-
- void TextEdit::fileSaveAs()
- {
- if ( !currentEditor() )
- return;
- QString fn = QFileDialog::getSaveFileName( QString::null, tr( "HTML-Files (*.htm *.html);;All Files (*)" ), this );
- if ( !fn.isEmpty() ) {
- filenames.replace( currentEditor(), fn );
- fileSave();
- tabWidget->setTabLabel( currentEditor(), QFileInfo( fn ).fileName() );
- }
- }
-
- void TextEdit::filePrint()
- {
- if ( !currentEditor() )
- return;
- #ifndef QT_NO_PRINTER
- QPrinter printer;
- printer.setFullPage(TRUE);
- QPaintDeviceMetrics screen( this );
- printer.setResolution( screen.logicalDpiY() );
- if ( printer.setup( this ) ) {
- QPainter p( &printer );
- QPaintDeviceMetrics metrics( p.device() );
- int dpix = metrics.logicalDpiX();
- int dpiy = metrics.logicalDpiY();
- const int margin = 72; // pt
- QRect body( margin * dpix / 72, margin * dpiy / 72,
- metrics.width() - margin * dpix / 72 * 2,
- metrics.height() - margin * dpiy / 72 * 2 );
- QFont font( "times", 10 );
- QSimpleRichText richText( currentEditor()->text(), font, currentEditor()->context(), currentEditor()->styleSheet(),
- currentEditor()->mimeSourceFactory(), body.height() );
- richText.setWidth( &p, body.width() );
- QRect view( body );
- int page = 1;
- do {
- richText.draw( &p, body.left(), body.top(), view, colorGroup() );
- view.moveBy( 0, body.height() );
- p.translate( 0 , -body.height() );
- p.setFont( font );
- p.drawText( view.right() - p.fontMetrics().width( QString::number( page ) ),
- view.bottom() + p.fontMetrics().ascent() + 5, QString::number( page ) );
- if ( view.top() >= richText.height() )
- break;
- printer.newPage();
- page++;
- } while (TRUE);
- }
- #endif
- }
-
- void TextEdit::fileClose()
- {
- delete currentEditor();
- if ( currentEditor() )
- currentEditor()->viewport()->setFocus();
- }
-
- void TextEdit::fileExit()
- {
- qApp->quit();
- }
-
- void TextEdit::editUndo()
- {
- if ( !currentEditor() )
- return;
- currentEditor()->undo();
- }
-
- void TextEdit::editRedo()
- {
- if ( !currentEditor() )
- return;
- currentEditor()->redo();
- }
-
- void TextEdit::editCut()
- {
- if ( !currentEditor() )
- return;
- currentEditor()->cut();
- }
-
- void TextEdit::editCopy()
- {
- if ( !currentEditor() )
- return;
- currentEditor()->copy();
- }
-
- void TextEdit::editPaste()
- {
- if ( !currentEditor() )
- return;
- currentEditor()->paste();
- }
-
- void TextEdit::textBold()
- {
- if ( !currentEditor() )
- return;
- currentEditor()->setBold( actionTextBold->isOn() );
- }
-
- void TextEdit::textUnderline()
- {
- if ( !currentEditor() )
- return;
- currentEditor()->setUnderline( actionTextUnderline->isOn() );
- }
-
- void TextEdit::textItalic()
- {
- if ( !currentEditor() )
- return;
- currentEditor()->setItalic( actionTextItalic->isOn() );
- }
-
- void TextEdit::textFamily( const QString &f )
- {
- if ( !currentEditor() )
- return;
- currentEditor()->setFamily( f );
- currentEditor()->viewport()->setFocus();
- }
-
- void TextEdit::textSize( const QString &p )
- {
- if ( !currentEditor() )
- return;
- currentEditor()->setPointSize( p.toInt() );
- currentEditor()->viewport()->setFocus();
- }
-
- void TextEdit::textStyle( int i )
- {
- if ( !currentEditor() )
- return;
- if ( i == 0 )
- currentEditor()->setParagType( QStyleSheetItem::DisplayBlock, QStyleSheetItem::ListDisc );
- else if ( i == 1 )
- currentEditor()->setParagType( QStyleSheetItem::DisplayListItem, QStyleSheetItem::ListDisc );
- else if ( i == 2 )
- currentEditor()->setParagType( QStyleSheetItem::DisplayListItem, QStyleSheetItem::ListCircle );
- else if ( i == 3 )
- currentEditor()->setParagType( QStyleSheetItem::DisplayListItem, QStyleSheetItem::ListSquare );
- else if ( i == 4 )
- currentEditor()->setParagType( QStyleSheetItem::DisplayListItem, QStyleSheetItem::ListDecimal );
- else if ( i == 5 )
- currentEditor()->setParagType( QStyleSheetItem::DisplayListItem, QStyleSheetItem::ListLowerAlpha );
- else if ( i == 6 )
- currentEditor()->setParagType( QStyleSheetItem::DisplayListItem, QStyleSheetItem::ListUpperAlpha );
- currentEditor()->viewport()->setFocus();
- }
-
- void TextEdit::textColor()
- {
- if ( !currentEditor() )
- return;
- QColor col = QColorDialog::getColor( currentEditor()->color(), this );
- if ( !col.isValid() )
- return;
- currentEditor()->setColor( col );
- QPixmap pix( 16, 16 );
- pix.fill( black );
- actionTextColor->setIconSet( pix );
- }
-
- void TextEdit::textAlign( QAction *a )
- {
- if ( !currentEditor() )
- return;
- if ( a == actionAlignLeft )
- currentEditor()->setAlignment( AlignLeft );
- else if ( a == actionAlignCenter )
- currentEditor()->setAlignment( AlignHCenter );
- else if ( a == actionAlignRight )
- currentEditor()->setAlignment( AlignRight );
- else if ( a == actionAlignJustify )
- currentEditor()->setAlignment( AlignJustify );
- }
-
- void TextEdit::fontChanged( const QFont &f )
- {
- comboFont->lineEdit()->setText( f.family() );
- comboSize->lineEdit()->setText( QString::number( f.pointSize() ) );
- actionTextBold->setOn( f.bold() );
- actionTextItalic->setOn( f.italic() );
- actionTextUnderline->setOn( f.underline() );
- }
-
- void TextEdit::colorChanged( const QColor &c )
- {
- QPixmap pix( 16, 16 );
- pix.fill( c );
- actionTextColor->setIconSet( pix );
- }
-
- void TextEdit::alignmentChanged( int a )
- {
- if ( ( a == AlignAuto ) || ( a & AlignLeft ))
- actionAlignLeft->setOn( TRUE );
- else if ( ( a & AlignHCenter ) )
- actionAlignCenter->setOn( TRUE );
- else if ( ( a & AlignRight ) )
- actionAlignRight->setOn( TRUE );
- else if ( ( a & AlignJustify ) )
- actionAlignJustify->setOn( TRUE );
- }
-
- void TextEdit::editorChanged( QWidget * )
- {
- if ( !currentEditor() )
- return;
- fontChanged( currentEditor()->font() );
- colorChanged( currentEditor()->color() );
- alignmentChanged( currentEditor()->alignment() );
- }
-