textedit.cpp

Linux下的基于X11的图形开发环境。

}

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( col );
    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() );
}