diff options
Diffstat (limited to 'qtjava/javalib/examples/textedit/TextEdit.java')
| -rw-r--r-- | qtjava/javalib/examples/textedit/TextEdit.java | 494 |
1 files changed, 494 insertions, 0 deletions
diff --git a/qtjava/javalib/examples/textedit/TextEdit.java b/qtjava/javalib/examples/textedit/TextEdit.java new file mode 100644 index 00000000..c4adfa7a --- /dev/null +++ b/qtjava/javalib/examples/textedit/TextEdit.java @@ -0,0 +1,494 @@ +/*************************************************************************** +* $Id$ +** +* 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 QMainWindow +{ + + +private QAction actionTextBold, + actionTextUnderline, + actionTextItalic, + actionTextColor, + actionAlignLeft, + actionAlignCenter, + actionAlignRight, + actionAlignJustify; + QComboBox comboStyle, + comboFont, + comboSize; +private QTabWidget tabWidget; +private HashMap filenames = new HashMap(); + + + +TextEdit( ) +{ + this(null, null); +} + +TextEdit( QWidget parent, String name ) +{ + super( parent, name ); + setupFileActions(); + setupEditActions(); + setupTextActions(); + + tabWidget = new QTabWidget( this ); + connect( tabWidget, SIGNAL(" currentChanged( QWidget )"), + this, SLOT(" editorChanged( QWidget )") ); + setCentralWidget( tabWidget ); + + if ( qApp().args().length == 0 ) { + load( "example.html" ); + } else { + for ( int i = 0; i < qApp().args().length; ++i ) + load( qApp().args()[ i ] ); + } +} + +void setupFileActions() +{ + QToolBar tb = new QToolBar( this ); + tb.setLabel( "File Actions" ); + QPopupMenu menu = new QPopupMenu( this ); + menuBar().insertItem( tr( "&File" ), menu ); + + QAction a; + a = new QAction( tr( "New" ), new QIconSet(new QPixmap( "filenew.xpm" )), tr( "&New..." ), new QKeySequence(CTRL + Key_N), this, "fileNew" ); + connect( a, SIGNAL(" activated()"), this, SLOT(" fileNew()") ); + a.addTo( tb ); + a.addTo( menu ); + a = new QAction( tr( "Open" ), new QIconSet(new QPixmap( "fileopen.xpm" )), tr( "&Open..." ), new QKeySequence(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" ), new QIconSet(new QPixmap( "filesave.xpm" )), tr( "&Save..." ), new QKeySequence(CTRL + Key_S), this, "fileSave" ); + connect( a, SIGNAL(" activated()"), this, SLOT(" fileSave()") ); + a.addTo( tb ); + a.addTo( menu ); + a = new QAction( tr( "Save As" ), new QIconSet(new QPixmap()), tr( "Save &As..." ), new QKeySequence(0), this, "fileSaveAs" ); + connect( a, SIGNAL(" activated()"), this, SLOT(" fileSaveAs()") ); + a.addTo( menu ); + menu.insertSeparator(); + a = new QAction( tr( "Print" ), new QIconSet(new QPixmap( "fileprint.xpm" )), tr( "&Print..." ), new QKeySequence(CTRL + Key_P), this, "filePrint" ); + connect( a, SIGNAL(" activated()"), this, SLOT(" filePrint()") ); + a.addTo( tb ); + a.addTo( menu ); + a = new QAction( tr( "Close" ), new QIconSet(new QPixmap()), tr( "&Close" ), new QKeySequence(0), this, "fileClose" ); + connect( a, SIGNAL(" activated()"), this, SLOT(" fileClose()") ); + a.addTo( menu ); + a = new QAction( tr( "Exit" ), new QIconSet(new QPixmap()), tr( "E&xit" ), new QKeySequence(0), this, "fileExit" ); + connect( a, SIGNAL(" activated()"), this, SLOT(" fileExit()") ); + a.addTo( menu ); +} + +void setupEditActions() +{ + QToolBar tb = new QToolBar( this ); + tb.setLabel( "Edit Actions" ); + QPopupMenu menu = new QPopupMenu( this ); + menuBar().insertItem( tr( "&Edit" ), menu ); + + QAction a; + a = new QAction( tr( "Undo" ), new QIconSet(new QPixmap( "editundo.xpm" )), tr( "&Undo" ), new QKeySequence(CTRL + Key_Z), this, "editUndo" ); + connect( a, SIGNAL(" activated()"), this, SLOT(" editUndo()") ); + a.addTo( tb ); + a.addTo( menu ); + a = new QAction( tr( "Redo" ), new QIconSet(new QPixmap( "editredo.xpm" )), tr( "&Redo" ), new QKeySequence(CTRL + Key_Y), this, "editRedo" ); + connect( a, SIGNAL(" activated()"), this, SLOT(" editRedo()") ); + a.addTo( tb ); + a.addTo( menu ); + menu.insertSeparator(); + a = new QAction( tr( "Copy" ), new QIconSet(new QPixmap( "editcopy.xpm" )), tr( "&Copy" ), new QKeySequence(CTRL + Key_C), this, "editCopy" ); + connect( a, SIGNAL(" activated()"), this, SLOT(" editCopy()") ); + a.addTo( tb ); + a.addTo( menu ); + a = new QAction( tr( "Cut" ), new QIconSet(new QPixmap( "editcut.xpm" )), tr( "Cu&t" ), new QKeySequence(CTRL + Key_X), this, "editCut" ); + connect( a, SIGNAL(" activated()"), this, SLOT(" editCut()") ); + a.addTo( tb ); + a.addTo( menu ); + a = new QAction( tr( "Paste" ), new QIconSet(new QPixmap( "editpaste.xpm" )), tr( "&Paste" ), new QKeySequence(CTRL + Key_V), this, "editPaste" ); + connect( a, SIGNAL(" activated()"), this, SLOT(" editPaste()") ); + a.addTo( tb ); + a.addTo( menu ); +} + +void setupTextActions() +{ + QToolBar tb = new QToolBar( this ); + tb.setLabel( "Format Actions" ); + QPopupMenu menu = new QPopupMenu( this ); + menuBar().insertItem( tr( "F&ormat" ), menu ); + + comboStyle = new QComboBox( 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 QComboBox( true, tb ); + QFontDatabase db = new QFontDatabase(); + comboFont.insertStringList( (String[]) db.families().toArray(new String[0]) ); + connect( comboFont, SIGNAL(" activated( String )"), + this, SLOT(" textFamily( String )") ); + comboFont.lineEdit().setText( QApplication.font().family() ); + + comboSize = new QComboBox( 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( QApplication.font().pointSize() ) ); + + actionTextBold = new QAction( tr( "Bold" ), new QIconSet(new QPixmap( "textbold.xpm" )), tr( "&Bold" ), new QKeySequence(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" ), new QIconSet(new QPixmap( "textitalic.xpm" )), tr( "&Italic" ), new QKeySequence(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" ), new QIconSet(new QPixmap( "textunder.xpm" )), tr( "&Underline" ), new QKeySequence(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" ), new QIconSet(new QPixmap( "textleft.xpm" )), tr( "&Left" ), new QKeySequence(CTRL + Key_L), grp, "textLeft" ); + actionAlignLeft.addTo( tb ); + actionAlignLeft.addTo( menu ); + actionAlignLeft.setToggleAction( true ); + actionAlignCenter = new QAction( tr( "Center" ), new QIconSet(new QPixmap( "textcenter.xpm" )), tr( "C&enter" ), new QKeySequence(CTRL + Key_E), grp, "textCenter" ); + actionAlignCenter.addTo( tb ); + actionAlignCenter.addTo( menu ); + actionAlignCenter.setToggleAction( true ); + actionAlignRight = new QAction( tr( "Right" ), new QIconSet(new QPixmap( "textright.xpm" )), tr( "&Right" ), new QKeySequence(CTRL + Key_R), grp, "textRight" ); + actionAlignRight.addTo( tb ); + actionAlignRight.addTo( menu ); + actionAlignRight.setToggleAction( true ); + actionAlignJustify = new QAction( tr( "Justify" ), new QIconSet(new QPixmap( "textjustify.xpm" )), tr( "&Justify" ), new QKeySequence(CTRL + Key_J), grp, "textjustify" ); + actionAlignJustify.addTo( tb ); + actionAlignJustify.addTo( menu ); + actionAlignJustify.setToggleAction( true ); + + menu.insertSeparator(); + + QPixmap pix = new QPixmap( 16, 16 ); + pix.fill( black() ); + actionTextColor = new QAction( tr( "Color" ), new QIconSet(pix), tr( "&Color..." ), new QKeySequence(0), this, "textColor" ); + connect( actionTextColor, SIGNAL(" activated()"), this, SLOT(" textColor()") ); + actionTextColor.addTo( tb ); + actionTextColor.addTo( menu ); +} + +void load( String f ) +{ + if ( !QFile.exists( f ) ) + return; + QTextEdit edit = new QTextEdit( tabWidget ); + doConnections( edit ); + tabWidget.addTab( edit, new QFileInfo( f ).fileName() ); + QFile file = new QFile( f ); + if ( !file.open( QIODevice.IO_ReadOnly ) ) + return; + QTextStream ts = new QTextStream( file ); + edit.setText( ts.read() ); + tabWidget.showPage( edit ); + edit.viewport().setFocus(); + filenames.put( edit, f ); +} + +QTextEdit currentEditor() +{ + if ( tabWidget.currentPage() != null && + tabWidget.currentPage().inherits( "QTextEdit" ) ) + return (QTextEdit)tabWidget.currentPage(); + return null; +} + +void doConnections( QTextEdit e ) +{ + connect( e, SIGNAL(" currentFontChanged( QFont )"), + this, SLOT(" fontChanged( QFont )") ); + connect( e, SIGNAL(" currentColorChanged( QColor )"), + this, SLOT(" colorChanged( QColor )") ); + connect( e, SIGNAL(" currentAlignmentChanged( int )"), + this, SLOT(" alignmentChanged( int )") ); +} + +void fileNew() +{ + QTextEdit edit = new QTextEdit( tabWidget ); + edit.setTextFormat( RichText ); + doConnections( edit ); + tabWidget.addTab( edit, tr( "noname" ) ); + tabWidget.showPage( edit ); + edit.viewport().setFocus(); +} + +void fileOpen() +{ + String fn = QFileDialog.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 { + QFile file = new QFile( (String) filenames.get( currentEditor() ) ); + if ( !file.open( QIODevice.IO_WriteOnly ) ) + return; + QTextStream ts = new QTextStream( file ); + ts.writeRawBytes(currentEditor().text(), currentEditor().text().length()); + } +} + +void fileSaveAs() +{ + if ( currentEditor() == null ) + return; + String fn = QFileDialog.getSaveFileName( "", tr( "HTML-Files (*.htm *.html);;All Files (*)" ), this ); + if ( !fn.equals("") ) { + filenames.put( currentEditor(), fn ); + fileSave(); + tabWidget.setTabLabel( currentEditor(), new QFileInfo( fn ).fileName() ); + } +} + +void filePrint() +{ + if ( currentEditor() == null ) + return; + QPrinter printer = new QPrinter(); + printer.setFullPage(true); + if ( printer.setup( this ) ) { + QPainter p = new QPainter( printer ); + // Check that there is a valid device to print to. + if ( p.device() == null ) return; + QPaintDeviceMetrics metrics = new QPaintDeviceMetrics( p.device() ); + int dpix = metrics.logicalDpiX(); + int dpiy = metrics.logicalDpiY(); + int margin = 72; // pt + QRect body = new QRect( margin * dpix / 72, margin * dpiy / 72, + metrics.width() - margin * dpix / 72 * 2, + metrics.height() - margin * dpiy / 72 * 2 ); + QFont font = new QFont( "times", 10 ); + QSimpleRichText richText = new QSimpleRichText( currentEditor().text(), font, currentEditor().context(), currentEditor().styleSheet(), + currentEditor().mimeSourceFactory(), body.height() ); + richText.setWidth( p, body.width() ); + QRect view = new QRect( 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() +{ + qApp().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( 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 textColor() +{ + if ( currentEditor() == null ) + return; + QColor col = QColorDialog.getColor( currentEditor().color(), this ); + if ( !col.isValid() ) + return; + currentEditor().setColor( col ); + QPixmap pix = new QPixmap( 16, 16 ); + pix.fill( black() ); + actionTextColor.setIconSet( new QIconSet(pix) ); +} + +void textAlign( QAction 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( QFont 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( QColor c ) +{ + QPixmap pix = new QPixmap( 16, 16 ); + pix.fill( c ); + actionTextColor.setIconSet( new QIconSet(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( QWidget w ) +{ + if ( currentEditor() == null ) + return; + fontChanged( currentEditor().font() ); + colorChanged( currentEditor().color() ); + alignmentChanged( currentEditor().alignment() ); +} +} |