/*******************************************************************************
* Copyright (c) 2002, 2015 Innoopract Informationssysteme GmbH and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Innoopract Informationssysteme GmbH - initial API and implementation
* EclipseSource - ongoing development
******************************************************************************/
package org.eclipse.rap.demo.controls;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.KeyAdapter;
import org.eclipse.swt.events.KeyListener;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.events.VerifyEvent;
import org.eclipse.swt.events.VerifyListener;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Text;
public class TextTab extends ExampleTab {
private Text text;
private Label textLabel;
private Label selectionLabel;
private Button btnSelectionListener;
private Button btnBlockingVerifyListener;
private Button btnNumbersOnlyVerifyListener;
private Button btnModifyListener;
private Button btnKeyListener;
private Button btnEditable;
private Button btnEchoChar;
private final SelectionListener selectionListener;
private final VerifyListener blockingVerifyListener;
private final VerifyListener numberOnlyVerifyListener;
private final ModifyListener modifyListener;
private final KeyListener keyListener;
private Button searchStyleButton;
private Button iconSearchStyleButton;
private Button iconCancelStyleButton;
public TextTab() {
super( "Text" );
selectionListener = new SelectionAdapter() {
@Override
public void widgetDefaultSelected( SelectionEvent event ) {
String msg = "You pressed the Enter key.";
if( event.detail == SWT.ICON_SEARCH ) {
msg = "You clicked the search icon.";
} else if( event.detail == SWT.ICON_CANCEL ) {
msg = "You clicked the cancel icon.";
}
MessageDialog.openInformation( getShell(), "Information", msg );
}
};
blockingVerifyListener = new VerifyListener() {
@Override
public void verifyText( VerifyEvent event ) {
event.doit = false;
}
};
numberOnlyVerifyListener = new VerifyListener() {
@Override
public void verifyText( VerifyEvent event ) {
StringBuffer allowedText = new StringBuffer();
for( int i = 0; i < event.text.length(); i++ ) {
char ch = event.text.charAt( i );
if( ch >= '0' && ch <= '9' ) {
allowedText.append( ch );
}
}
event.text = allowedText.toString();
}
};
modifyListener = new ModifyListener() {
@Override
public void modifyText( ModifyEvent event ) {
Text text = ( Text )event.widget;
textLabel.setText( text.getText() );
}
};
keyListener = new KeyAdapter() {};
}
@Override
protected void createStyleControls( Composite parent ) {
createStyleButton( "BORDER", SWT.BORDER );
createStyleButton( "WRAP", SWT.WRAP );
createStyleButton( "SINGLE", SWT.SINGLE );
createStyleButton( "MULTI", SWT.MULTI );
createStyleButton( "PASSWORD", SWT.PASSWORD );
searchStyleButton = createStyleButton( "SEARCH", SWT.SEARCH );
iconSearchStyleButton = createStyleButton( "ICON_SEARCH", SWT.ICON_SEARCH );
iconCancelStyleButton = createStyleButton( "ICON_CANCEL", SWT.ICON_CANCEL );
updateSearchStyleButtons();
createStyleButton( "READ_ONLY", SWT.READ_ONLY );
createStyleButton( "LEFT", SWT.LEFT );
createStyleButton( "CENTER", SWT.CENTER );
createStyleButton( "RIGHT", SWT.RIGHT );
createOrientationButton();
createVisibilityButton();
createEnablementButton();
createEditableButton();
createEchoCharButton();
createSelectionListenerButton();
createBlockingVerifyListenerButton();
createNumbersOnlyVerifyListenerButton();
createModifyListenerButton();
createKeyListenerButton();
createFgColorButton();
createBgColorButton();
createFontChooser();
createCursorCombo();
createLimitText( parent );
createSelectionChooser( parent );
createText( parent );
createMessage( parent );
}
@Override
protected void createExampleControls( final Composite parent ) {
parent.setLayout( new GridLayout() );
Composite textComposite = new Composite( parent, SWT.NONE );
textComposite.setLayoutData( new GridData( SWT.FILL, SWT.FILL, true, true ) );
textComposite.setLayout( new GridLayout( 1, false ) );
text = new Text( textComposite, getStyle() );
text.setText( "Lorem ipsum dolor sit amet" );
text.setSelection( 0, 5 );
text.setMessage( "Please enter something" );
text.setFocus();
// button bar
Composite buttonBar = new Composite( parent, SWT.NONE );
buttonBar.setLayoutData( new GridData( SWT.FILL, SWT.DEFAULT, true, false ) );
buttonBar.setLayout( new RowLayout( SWT.HORIZONTAL ) );
final Button btnGetText = new Button( buttonBar, SWT.PUSH );
btnGetText.setText( "getText" );
btnGetText.addSelectionListener( new SelectionAdapter() {
@Override
public void widgetSelected( SelectionEvent event ) {
textLabel.setText( text.getText() );
}
} );
final Button btnGetSelection = new Button( buttonBar, SWT.PUSH );
btnGetSelection.setText( "getSelection" );
btnGetSelection.addSelectionListener( new SelectionAdapter() {
@Override
public void widgetSelected( SelectionEvent event ) {
Point selection = text.getSelection();
selectionLabel.setText( selection.x + ", " + selection.y );
}
} );
final Button btnFixedSize = new Button( buttonBar, SWT.PUSH );
btnFixedSize.setText( "200 x 100" );
btnFixedSize.addSelectionListener( new SelectionAdapter() {
@Override
public void widgetSelected( SelectionEvent event ) {
text.setLayoutData( new GridData( 200, 100 ) );
parent.layout();
}
} );
// output form
Composite outputForm = new Composite( parent, SWT.NONE );
outputForm.setLayoutData( new GridData( SWT.FILL, SWT.FILL, true, true ) );
outputForm.setLayout( new GridLayout( 2, false ) );
new Label( outputForm, SWT.NONE ).setText( "Text:" );
textLabel = new Label( outputForm, SWT.BORDER );
textLabel.setText( "\n\n\n\n\n" );
textLabel.setLayoutData( new GridData( SWT.FILL, SWT.DEFAULT, true, false ) );
new Label( outputForm, SWT.NONE ).setText( "Selection:" );
selectionLabel = new Label( outputForm, SWT.BORDER );
selectionLabel.setLayoutData( new GridData( SWT.FILL, SWT.DEFAULT, true, false ) );
updateSelectionListener();
updateBlockingVerifyListener();
updateNumbersOnlyVerifyListener();
updateModifyListener();
updateEditable();
registerControl( text );
createDefaultButton( parent );
}
private void createDefaultButton( final Composite parent ) {
Composite composite = new Composite( parent, SWT.NONE );
composite.setLayout( new RowLayout( SWT.HORIZONTAL) );
final Button defaultButton = new Button( composite, SWT.PUSH );
defaultButton.setText( "Default" );
defaultButton.addSelectionListener( new SelectionAdapter() {
@Override
public void widgetSelected( SelectionEvent e ) {
String message = "Default button triggered";
MessageDialog.openInformation( parent.getShell(), "Info", message );
}
});
final Button setDefaultButton = new Button( composite, SWT.CHECK );
setDefaultButton.setText( "set as defaultButton" );
setDefaultButton.addSelectionListener( new SelectionAdapter() {
@Override
public void widgetSelected( SelectionEvent e ) {
if( setDefaultButton.getSelection() ) {
parent.getShell().setDefaultButton( defaultButton );
} else {
// To clear the default button you have to call it twice (same for SWT)
parent.getShell().setDefaultButton( null );
parent.getShell().setDefaultButton( null );
}
}
});
}
private void createModifyListenerButton() {
btnModifyListener = createPropertyButton( "ModifyListener" );
btnModifyListener.addSelectionListener( new SelectionAdapter() {
@Override
public void widgetSelected( SelectionEvent event ) {
updateModifyListener();
}
} );
}
private void createKeyListenerButton() {
btnKeyListener = createPropertyButton( "KeyListener" );
btnKeyListener.addSelectionListener( new SelectionAdapter() {
@Override
public void widgetSelected( final SelectionEvent event ) {
updateKeyListener();
}
} );
}
private void createNumbersOnlyVerifyListenerButton() {
btnNumbersOnlyVerifyListener
= createPropertyButton( "VerifyListener (numbers only)" );
btnNumbersOnlyVerifyListener.addSelectionListener( new SelectionAdapter() {
@Override
public void widgetSelected( SelectionEvent event ) {
updateNumbersOnlyVerifyListener();
}
} );
}
private void createBlockingVerifyListenerButton() {
btnBlockingVerifyListener
= createPropertyButton( "VerifyListener (reject all)" );
btnBlockingVerifyListener.addSelectionListener( new SelectionAdapter() {
@Override
public void widgetSelected( SelectionEvent event ) {
updateBlockingVerifyListener();
}
} );
}
private void createSelectionListenerButton() {
btnSelectionListener = createPropertyButton( "SelectionListener" );
btnSelectionListener.addSelectionListener( new SelectionAdapter() {
@Override
public void widgetSelected( SelectionEvent event ) {
updateSelectionListener();
}
} );
}
private void createEditableButton() {
btnEditable = createPropertyButton( "Editable" );
btnEditable.setSelection( true );
btnEditable.addSelectionListener( new SelectionAdapter() {
@Override
public void widgetSelected( SelectionEvent event ) {
updateEditable();
}
} );
}
private void createEchoCharButton() {
btnEchoChar= createPropertyButton( "EchoChar" );
btnEchoChar.setSelection( false );
btnEchoChar.addSelectionListener( new SelectionAdapter() {
@Override
public void widgetSelected( SelectionEvent event ) {
updateEchoChar();
}
} );
}
private void createSelectionChooser( Composite parent ) {
Composite composite = new Composite( parent, SWT.NONE );
composite.setLayout( new GridLayout( 6, false ) );
Label lblSelectionFrom = new Label( composite, SWT.NONE );
lblSelectionFrom.setText( "Selection from" );
final Text txtSelectionFrom = new Text( composite, SWT.BORDER );
txtSelectionFrom.setLayoutData( new GridData( 30, SWT.DEFAULT ) );
Label lblSelectionTo = new Label( composite, SWT.NONE );
lblSelectionTo.setText( "to" );
final Text txtSelectionTo = new Text( composite, SWT.BORDER );
txtSelectionTo.setLayoutData( new GridData( 30, SWT.DEFAULT ) );
Button btnChange = new Button( composite, SWT.PUSH );
btnChange.setText( "Set" );
btnChange.addSelectionListener( new SelectionAdapter() {
@Override
public void widgetSelected( SelectionEvent event ) {
int from = parseInt( txtSelectionFrom.getText() );
int to = parseInt( txtSelectionTo.getText() );
if( to >= 0 && from >= 0 ) {
text.setSelection( from, to );
text.setFocus();
} else {
String msg
= "Invalid Selection: "
+ txtSelectionFrom.getText()
+ " - "
+ txtSelectionTo.getText();
MessageDialog.openError( getShell(), "Error", msg );
}
}
} );
Button selectAllButton = new Button( composite, SWT.PUSH );
selectAllButton.setText( "Select all" );
selectAllButton.addSelectionListener( new SelectionAdapter() {
@Override
public void widgetSelected( SelectionEvent e ) {
text.selectAll();
text.setFocus();
}
} );
}
private void createLimitText( Composite parent ) {
Composite composite = new Composite( parent, SWT.NONE );
composite.setLayout( new GridLayout( 4, false ) );
Label label = new Label( composite, SWT.NONE );
label.setText( "Text limit" );
final Text limitText = new Text( composite, SWT.BORDER );
limitText.setLayoutData( new GridData( 100, SWT.DEFAULT ) );
Button setButton = new Button( composite, SWT.PUSH );
setButton.setText( "Set" );
Button resetButton = new Button( composite, SWT.PUSH );
resetButton.setText( "Reset" );
Listener changeListener = new Listener() {
@Override
public void handleEvent( Event event ) {
try {
text.setTextLimit( Integer.parseInt( limitText.getText() ) );
limitText.setText( String.valueOf( text.getTextLimit() ) );
limitText.setBackground( null );
} catch( Exception e ) {
limitText.setBackground( bgColors[ BG_COLOR_BROWN ] );
}
}
};
limitText.addListener( SWT.DefaultSelection, changeListener );
setButton.addListener( SWT.Selection, changeListener );
resetButton.addSelectionListener( new SelectionAdapter() {
@Override
public void widgetSelected( SelectionEvent e ) {
text.setTextLimit( Text.LIMIT );
limitText.setText( "" );
limitText.setBackground( null );
}
} );
}
private void createText( Composite parent ) {
Group group = new Group( parent, SWT.NONE );
group.setText( "Text" );
group.setLayout( new GridLayout( 2, false ) );
final Text setText = new Text( group, SWT.BORDER );
setText.setLayoutData( new GridData( 200, SWT.DEFAULT ) );
Button setButton = new Button( group, SWT.PUSH );
setButton.setText( "Set" );
setButton.addSelectionListener( new SelectionAdapter() {
@Override
public void widgetSelected( SelectionEvent e ) {
text.setText( setText.getText() );
}
} );
final Text appendText = new Text( group, SWT.BORDER );
appendText.setLayoutData( new GridData( 200, SWT.DEFAULT ) );
Button appendButton = new Button( group, SWT.PUSH );
appendButton.setText( "Append" );
appendButton.addSelectionListener( new SelectionAdapter() {
@Override
public void widgetSelected( SelectionEvent e ) {
text.append( appendText.getText() );
}
} );
final Text insertText = new Text( group, SWT.BORDER );
insertText.setLayoutData( new GridData( 200, SWT.DEFAULT ) );
Button insertButton = new Button( group, SWT.PUSH );
insertButton.setText( "Insert" );
insertButton.addSelectionListener( new SelectionAdapter() {
@Override
public void widgetSelected( SelectionEvent e ) {
text.insert( insertText.getText() );
}
} );
}
private void createMessage( Composite parent ) {
Composite composite = new Composite( parent, SWT.NONE );
composite.setLayout( new GridLayout( 3, false ) );
Label label = new Label( composite, SWT.NONE );
label.setText( "Message" );
final Text message = new Text( composite, SWT.BORDER );
message.setLayoutData( new GridData( 185, SWT.DEFAULT ) );
Button setButton = new Button( composite, SWT.PUSH );
setButton.setText( "Set" );
setButton.addSelectionListener( new SelectionAdapter() {
@Override
public void widgetSelected( SelectionEvent e ) {
text.setMessage( message.getText() );
}
} );
}
private int parseInt( String text ) {
int result;
try {
result = Integer.parseInt( text );
} catch( NumberFormatException e ) {
result = -1;
}
return result;
}
private void updateSelectionListener() {
if( checkControl( btnSelectionListener ) ) {
if( btnSelectionListener.getSelection() ) {
text.addSelectionListener( selectionListener );
} else {
text.removeSelectionListener( selectionListener );
}
}
}
private void updateBlockingVerifyListener() {
if( checkControl( btnBlockingVerifyListener ) ) {
if( btnBlockingVerifyListener.getSelection() ) {
text.addVerifyListener( blockingVerifyListener );
} else {
text.removeVerifyListener( blockingVerifyListener );
}
}
}
private void updateNumbersOnlyVerifyListener() {
if( checkControl( btnNumbersOnlyVerifyListener ) ) {
if( btnNumbersOnlyVerifyListener.getSelection() ) {
text.addVerifyListener( numberOnlyVerifyListener );
} else {
text.removeVerifyListener( numberOnlyVerifyListener );
}
}
}
private void updateModifyListener() {
if( checkControl( btnModifyListener ) ) {
if( btnModifyListener.getSelection() ) {
text.addModifyListener( modifyListener );
} else {
text.removeModifyListener( modifyListener );
}
}
}
private void updateKeyListener() {
if( checkControl( btnKeyListener ) ) {
if( btnKeyListener.getSelection() ) {
text.addKeyListener( keyListener );
} else {
text.removeKeyListener( keyListener );
}
}
}
private void updateEditable() {
if( checkControl( btnEditable ) ) {
text.setEditable( btnEditable.getSelection() );
}
}
private void updateEchoChar() {
if( checkControl( btnEchoChar ) ) {
text.setEchoChar( btnEchoChar.getSelection() ? '*' : 0);
}
}
@Override
protected void createNew() {
updateSearchStyleButtons();
super.createNew();
}
private void updateSearchStyleButtons() {
boolean isSearch = searchStyleButton.getSelection();
iconSearchStyleButton.setEnabled( isSearch );
iconCancelStyleButton.setEnabled( isSearch );
if( !isSearch ) {
iconSearchStyleButton.setSelection( false );
iconCancelStyleButton.setSelection( false );
}
}
}