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tdebindings/qtjava/javalib/examples/textedit/TextEdit.java

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/***************************************************************************
* $Id$
**
* 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.
**
****************************************************************************/
import org.kde.qt.*;
import java.util.HashMap;
class TextEdit extends TQMainWindow
{
private TQAction actionTextBold,
actionTextUnderline,
actionTextItalic,
actionTextColor,
actionAlignLeft,
actionAlignCenter,
actionAlignRight,
actionAlignJustify;
TQComboBox comboStyle,
comboFont,
comboSize;
private TQTabWidget tabWidget;
private HashMap filenames = new HashMap();
TextEdit( )
{
this(null, null);
}
TextEdit( TQWidget parent, String name )
{
super( parent, name );
setupFileActions();
setupEditActions();
setupTextActions();
tabWidget = new TQTabWidget( this );
connect( tabWidget, SIGNAL(" currentChanged( TQWidget )"),
this, SLOT(" editorChanged( TQWidget )") );
setCentralWidget( tabWidget );
if ( tqApp().args().length == 0 ) {
load( "example.html" );
} else {
for ( int i = 0; i < tqApp().args().length; ++i )
load( tqApp().args()[ i ] );
}
}
void setupFileActions()
{
TQToolBar tb = new TQToolBar( this );
tb.setLabel( "File Actions" );
TQPopupMenu menu = new TQPopupMenu( this );
menuBar().insertItem( tr( "&File" ), menu );
TQAction a;
a = new TQAction( tr( "New" ), new TQIconSet(new TQPixmap( "filenew.xpm" )), tr( "&New..." ), new TQKeySequence(CTRL + Key_N), this, "fileNew" );
connect( a, SIGNAL(" activated()"), this, SLOT(" fileNew()") );
a.addTo( tb );
a.addTo( menu );
a = new TQAction( tr( "Open" ), new TQIconSet(new TQPixmap( "fileopen.xpm" )), tr( "&Open..." ), new TQKeySequence(CTRL + Key_O), this, "fileOpen" );
connect( a, SIGNAL(" activated()"), this, SLOT(" fileOpen()") );
a.addTo( tb );
a.addTo( menu );
menu.insertSeparator();
a = new TQAction( tr( "Save" ), new TQIconSet(new TQPixmap( "filesave.xpm" )), tr( "&Save..." ), new TQKeySequence(CTRL + Key_S), this, "fileSave" );
connect( a, SIGNAL(" activated()"), this, SLOT(" fileSave()") );
a.addTo( tb );
a.addTo( menu );
a = new TQAction( tr( "Save As" ), new TQIconSet(new TQPixmap()), tr( "Save &As..." ), new TQKeySequence(0), this, "fileSaveAs" );
connect( a, SIGNAL(" activated()"), this, SLOT(" fileSaveAs()") );
a.addTo( menu );
menu.insertSeparator();
a = new TQAction( tr( "Print" ), new TQIconSet(new TQPixmap( "fileprint.xpm" )), tr( "&Print..." ), new TQKeySequence(CTRL + Key_P), this, "filePrint" );
connect( a, SIGNAL(" activated()"), this, SLOT(" filePrint()") );
a.addTo( tb );
a.addTo( menu );
a = new TQAction( tr( "Close" ), new TQIconSet(new TQPixmap()), tr( "&Close" ), new TQKeySequence(0), this, "fileClose" );
connect( a, SIGNAL(" activated()"), this, SLOT(" fileClose()") );
a.addTo( menu );
a = new TQAction( tr( "Exit" ), new TQIconSet(new TQPixmap()), tr( "E&xit" ), new TQKeySequence(0), this, "fileExit" );
connect( a, SIGNAL(" activated()"), this, SLOT(" fileExit()") );
a.addTo( menu );
}
void setupEditActions()
{
TQToolBar tb = new TQToolBar( this );
tb.setLabel( "Edit Actions" );
TQPopupMenu menu = new TQPopupMenu( this );
menuBar().insertItem( tr( "&Edit" ), menu );
TQAction a;
a = new TQAction( tr( "Undo" ), new TQIconSet(new TQPixmap( "editundo.xpm" )), tr( "&Undo" ), new TQKeySequence(CTRL + Key_Z), this, "editUndo" );
connect( a, SIGNAL(" activated()"), this, SLOT(" editUndo()") );
a.addTo( tb );
a.addTo( menu );
a = new TQAction( tr( "Redo" ), new TQIconSet(new TQPixmap( "editredo.xpm" )), tr( "&Redo" ), new TQKeySequence(CTRL + Key_Y), this, "editRedo" );
connect( a, SIGNAL(" activated()"), this, SLOT(" editRedo()") );
a.addTo( tb );
a.addTo( menu );
menu.insertSeparator();
a = new TQAction( tr( "Copy" ), new TQIconSet(new TQPixmap( "editcopy.xpm" )), tr( "&Copy" ), new TQKeySequence(CTRL + Key_C), this, "editCopy" );
connect( a, SIGNAL(" activated()"), this, SLOT(" editCopy()") );
a.addTo( tb );
a.addTo( menu );
a = new TQAction( tr( "Cut" ), new TQIconSet(new TQPixmap( "editcut.xpm" )), tr( "Cu&t" ), new TQKeySequence(CTRL + Key_X), this, "editCut" );
connect( a, SIGNAL(" activated()"), this, SLOT(" editCut()") );
a.addTo( tb );
a.addTo( menu );
a = new TQAction( tr( "Paste" ), new TQIconSet(new TQPixmap( "editpaste.xpm" )), tr( "&Paste" ), new TQKeySequence(CTRL + Key_V), this, "editPaste" );
connect( a, SIGNAL(" activated()"), this, SLOT(" editPaste()") );
a.addTo( tb );
a.addTo( menu );
}
void setupTextActions()
{
TQToolBar tb = new TQToolBar( this );
tb.setLabel( "Format Actions" );
TQPopupMenu menu = new TQPopupMenu( this );
menuBar().insertItem( tr( "F&ormat" ), menu );
comboStyle = new TQComboBox( false, tb );
comboStyle.insertItem( "Standard" );
comboStyle.insertItem( "Bullet List (Disc)" );
comboStyle.insertItem( "Bullet List (Circle)" );
comboStyle.insertItem( "Bullet List (Square)" );
comboStyle.insertItem( "Ordered List (Decimal)" );
comboStyle.insertItem( "Ordered List (Alpha lower)" );
comboStyle.insertItem( "Ordered List (Alpha upper)" );
connect( comboStyle, SIGNAL(" activated( int )"),
this, SLOT(" textStyle( int )") );
comboFont = new TQComboBox( true, tb );
TQFontDatabase db = new TQFontDatabase();
comboFont.insertStringList( (String[]) db.families().toArray(new String[0]) );
connect( comboFont, SIGNAL(" activated( String )"),
this, SLOT(" textFamily( String )") );
comboFont.lineEdit().setText( TQApplication.font().family() );
comboSize = new TQComboBox( true, tb );
int[] sizes = db.standardSizes();
for (int i = 0; i < sizes.length; i++ )
comboSize.insertItem( Integer.toString(sizes[i]) );
connect( comboSize, SIGNAL(" activated( String )"),
this, SLOT(" textSize( String )") );
comboSize.lineEdit().setText( Integer.toString( TQApplication.font().pointSize() ) );
actionTextBold = new TQAction( tr( "Bold" ), new TQIconSet(new TQPixmap( "textbold.xpm" )), tr( "&Bold" ), new TQKeySequence(CTRL + Key_B), this, "textBold" );
connect( actionTextBold, SIGNAL(" activated()"), this, SLOT(" textBold()") );
actionTextBold.addTo( tb );
actionTextBold.addTo( menu );
actionTextBold.setToggleAction( true );
actionTextItalic = new TQAction( tr( "Italic" ), new TQIconSet(new TQPixmap( "textitalic.xpm" )), tr( "&Italic" ), new TQKeySequence(CTRL + Key_I), this, "textItalic" );
connect( actionTextItalic, SIGNAL(" activated()"), this, SLOT(" textItalic()") );
actionTextItalic.addTo( tb );
actionTextItalic.addTo( menu );
actionTextItalic.setToggleAction( true );
actionTextUnderline = new TQAction( tr( "Underline" ), new TQIconSet(new TQPixmap( "textunder.xpm" )), tr( "&Underline" ), new TQKeySequence(CTRL + Key_U), this, "textUnderline" );
connect( actionTextUnderline, SIGNAL(" activated()"), this, SLOT(" textUnderline()") );
actionTextUnderline.addTo( tb );
actionTextUnderline.addTo( menu );
actionTextUnderline.setToggleAction( true );
menu.insertSeparator();
TQActionGroup grp = new TQActionGroup( this );
grp.setExclusive( true );
connect( grp, SIGNAL(" selected( TQAction )"), this, SLOT(" textAlign( TQAction )") );
actionAlignLeft = new TQAction( tr( "Left" ), new TQIconSet(new TQPixmap( "textleft.xpm" )), tr( "&Left" ), new TQKeySequence(CTRL + Key_L), grp, "textLeft" );
actionAlignLeft.addTo( tb );
actionAlignLeft.addTo( menu );
actionAlignLeft.setToggleAction( true );
actionAlignCenter = new TQAction( tr( "Center" ), new TQIconSet(new TQPixmap( "textcenter.xpm" )), tr( "C&enter" ), new TQKeySequence(CTRL + Key_E), grp, "textCenter" );
actionAlignCenter.addTo( tb );
actionAlignCenter.addTo( menu );
actionAlignCenter.setToggleAction( true );
actionAlignRight = new TQAction( tr( "Right" ), new TQIconSet(new TQPixmap( "textright.xpm" )), tr( "&Right" ), new TQKeySequence(CTRL + Key_R), grp, "textRight" );
actionAlignRight.addTo( tb );
actionAlignRight.addTo( menu );
actionAlignRight.setToggleAction( true );
actionAlignJustify = new TQAction( tr( "Justify" ), new TQIconSet(new TQPixmap( "textjustify.xpm" )), tr( "&Justify" ), new TQKeySequence(CTRL + Key_J), grp, "textjustify" );
actionAlignJustify.addTo( tb );
actionAlignJustify.addTo( menu );
actionAlignJustify.setToggleAction( true );
menu.insertSeparator();
TQPixmap pix = new TQPixmap( 16, 16 );
pix.fill( black() );
actionTextColor = new TQAction( tr( "Color" ), new TQIconSet(pix), tr( "&Color..." ), new TQKeySequence(0), this, "textColor" );
connect( actionTextColor, SIGNAL(" activated()"), this, SLOT(" textColor()") );
actionTextColor.addTo( tb );
actionTextColor.addTo( menu );
}
void load( String f )
{
if ( !TQFile.exists( f ) )
return;
TQTextEdit edit = new TQTextEdit( tabWidget );
doConnections( edit );
tabWidget.addTab( edit, new TQFileInfo( f ).fileName() );
TQFile file = new TQFile( f );
if ( !file.open( TQIODevice.IO_ReadOnly ) )
return;
TQTextStream ts = new TQTextStream( file );
edit.setText( ts.read() );
tabWidget.showPage( edit );
edit.viewport().setFocus();
filenames.put( edit, f );
}
TQTextEdit currentEditor()
{
if ( tabWidget.currentPage() != null &&
tabWidget.currentPage().inherits( "TQTextEdit" ) )
return (TQTextEdit)tabWidget.currentPage();
return null;
}
void doConnections( TQTextEdit e )
{
connect( e, SIGNAL(" currentFontChanged( TQFont )"),
this, SLOT(" fontChanged( TQFont )") );
connect( e, SIGNAL(" currentColorChanged( TQColor )"),
this, SLOT(" colorChanged( TQColor )") );
connect( e, SIGNAL(" currentAlignmentChanged( int )"),
this, SLOT(" alignmentChanged( int )") );
}
void fileNew()
{
TQTextEdit edit = new TQTextEdit( tabWidget );
edit.setTextFormat( RichText );
doConnections( edit );
tabWidget.addTab( edit, tr( "noname" ) );
tabWidget.showPage( edit );
edit.viewport().setFocus();
}
void fileOpen()
{
String fn = TQFileDialog.getOpenFileName( "", tr( "HTML-Files (*.htm *.html);;All Files (*)" ), this );
if ( !fn.equals("") )
load( fn );
}
void fileSave()
{
if ( currentEditor() == null )
return;
String fn;
if ( !filenames.containsKey( currentEditor() ) ) {
fileSaveAs();
} else {
TQFile file = new TQFile( (String) filenames.get( currentEditor() ) );
if ( !file.open( TQIODevice.IO_WriteOnly ) )
return;
TQTextStream ts = new TQTextStream( file );
ts.writeRawBytes(currentEditor().text(), currentEditor().text().length());
}
}
void fileSaveAs()
{
if ( currentEditor() == null )
return;
String fn = TQFileDialog.getSaveFileName( "", tr( "HTML-Files (*.htm *.html);;All Files (*)" ), this );
if ( !fn.equals("") ) {
filenames.put( currentEditor(), fn );
fileSave();
tabWidget.setTabLabel( currentEditor(), new TQFileInfo( fn ).fileName() );
}
}
void filePrint()
{
if ( currentEditor() == null )
return;
TQPrinter printer = new TQPrinter();
printer.setFullPage(true);
if ( printer.setup( this ) ) {
TQPainter p = new TQPainter( printer );
// Check that there is a valid device to print to.
if ( p.device() == null ) return;
TQPaintDeviceMetrics metrics = new TQPaintDeviceMetrics( p.device() );
int dpix = metrics.logicalDpiX();
int dpiy = metrics.logicalDpiY();
int margin = 72; // pt
TQRect body = new TQRect( margin * dpix / 72, margin * dpiy / 72,
metrics.width() - margin * dpix / 72 * 2,
metrics.height() - margin * dpiy / 72 * 2 );
TQFont font = new TQFont( "times", 10 );
TQSimpleRichText richText = new TQSimpleRichText( currentEditor().text(), font, currentEditor().context(), currentEditor().styleSheet(),
currentEditor().mimeSourceFactory(), body.height() );
richText.setWidth( p, body.width() );
TQRect view = new TQRect( body.topLeft(), body.bottomRight() );
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( Integer.toString(page) ),
view.bottom() + p.fontMetrics().ascent() + 5, Integer.toString(page) );
if ( view.top() >= richText.height() )
break;
printer.newPage();
page++;
} while (true);
}
}
void fileClose()
{
// delete currentEditor();
if ( currentEditor() != null )
currentEditor().viewport().setFocus();
}
void fileExit()
{
tqApp().quit();
}
void editUndo()
{
if ( currentEditor() == null )
return;
currentEditor().undo();
}
void editRedo()
{
if ( currentEditor() == null )
return;
currentEditor().redo();
}
void editCut()
{
if ( currentEditor() == null )
return;
currentEditor().cut();
}
void editCopy()
{
if ( currentEditor() == null )
return;
currentEditor().copy();
}
void editPaste()
{
if ( currentEditor() == null )
return;
currentEditor().paste();
}
void textBold()
{
if ( currentEditor() == null )
return;
currentEditor().setBold( actionTextBold.isOn() );
}
void textUnderline()
{
if ( currentEditor() == null )
return;
currentEditor().setUnderline( actionTextUnderline.isOn() );
}
void textItalic()
{
if ( currentEditor() == null )
return;
currentEditor().setItalic( actionTextItalic.isOn() );
}
void textFamily( String f )
{
if ( currentEditor() == null )
return;
currentEditor().setFamily( f );
currentEditor().viewport().setFocus();
}
void textSize( String p )
{
if ( currentEditor() == null )
return;
currentEditor().setPointSize( Integer.parseInt(p) );
currentEditor().viewport().setFocus();
}
void textStyle( int i )
{
if ( currentEditor() == null )
return;
if ( i == 0 )
currentEditor().setParagType( TQStyleSheetItem.DisplayBlock, TQStyleSheetItem.ListDisc );
else if ( i == 1 )
currentEditor().setParagType( TQStyleSheetItem.DisplayListItem, TQStyleSheetItem.ListDisc );
else if ( i == 2 )
currentEditor().setParagType( TQStyleSheetItem.DisplayListItem, TQStyleSheetItem.ListCircle );
else if ( i == 3 )
currentEditor().setParagType( TQStyleSheetItem.DisplayListItem, TQStyleSheetItem.ListSquare );
else if ( i == 4 )
currentEditor().setParagType( TQStyleSheetItem.DisplayListItem, TQStyleSheetItem.ListDecimal );
else if ( i == 5 )
currentEditor().setParagType( TQStyleSheetItem.DisplayListItem, TQStyleSheetItem.ListLowerAlpha );
else if ( i == 6 )
currentEditor().setParagType( TQStyleSheetItem.DisplayListItem, TQStyleSheetItem.ListUpperAlpha );
currentEditor().viewport().setFocus();
}
void textColor()
{
if ( currentEditor() == null )
return;
TQColor col = TQColorDialog.getColor( currentEditor().color(), this );
if ( !col.isValid() )
return;
currentEditor().setColor( col );
TQPixmap pix = new TQPixmap( 16, 16 );
pix.fill( black() );
actionTextColor.setIconSet( new TQIconSet(pix) );
}
void textAlign( TQAction a )
{
if ( currentEditor() == null )
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 fontChanged( TQFont f )
{
comboFont.lineEdit().setText( f.family() );
comboSize.lineEdit().setText( Integer.toString( f.pointSize() ) );
actionTextBold.setOn( f.bold() );
actionTextItalic.setOn( f.italic() );
actionTextUnderline.setOn( f.underline() );
}
void colorChanged( TQColor c )
{
TQPixmap pix = new TQPixmap( 16, 16 );
pix.fill( c );
actionTextColor.setIconSet( new TQIconSet(pix) );
}
void alignmentChanged( int a )
{
if ( ( a == AlignAuto ) || ( a & AlignLeft ) != 0)
actionAlignLeft.setOn( true );
else if ( ( a & AlignHCenter ) != 0 )
actionAlignCenter.setOn( true );
else if ( ( a & AlignRight ) != 0 )
actionAlignRight.setOn( true );
else if ( ( a & AlignJustify ) != 0 )
actionAlignJustify.setOn( true );
}
void editorChanged( TQWidget w )
{
if ( currentEditor() == null )
return;
fontChanged( currentEditor().font() );
colorChanged( currentEditor().color() );
alignmentChanged( currentEditor().alignment() );
}
}