| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| */ |
| |
| package org.apache.directory.studio.valueeditors.integer; |
| |
| |
| import java.math.BigDecimal; |
| |
| import org.apache.directory.studio.valueeditors.ValueEditorsActivator; |
| import org.apache.directory.studio.valueeditors.ValueEditorsConstants; |
| import org.eclipse.jface.dialogs.Dialog; |
| import org.eclipse.jface.dialogs.IDialogConstants; |
| import org.eclipse.swt.SWT; |
| import org.eclipse.swt.events.KeyAdapter; |
| import org.eclipse.swt.events.KeyEvent; |
| 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.VerifyEvent; |
| import org.eclipse.swt.events.VerifyListener; |
| import org.eclipse.swt.layout.GridData; |
| import org.eclipse.swt.layout.GridLayout; |
| import org.eclipse.swt.widgets.Button; |
| import org.eclipse.swt.widgets.Composite; |
| import org.eclipse.swt.widgets.Control; |
| import org.eclipse.swt.widgets.Shell; |
| import org.eclipse.swt.widgets.Text; |
| |
| |
| /** |
| * This class provides a dialog to enter or choose an integer. |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public class IntegerDialog extends Dialog |
| { |
| /** The initial value */ |
| private BigDecimal initialValue; |
| |
| /** The value */ |
| private BigDecimal value; |
| |
| /** The text */ |
| private Text text; |
| |
| |
| /** |
| * Creates a new instance of IntegerDialog. |
| * |
| * @param parentShell the parent shell |
| * @param initialValue the initial value |
| */ |
| public IntegerDialog( Shell parentShell, BigDecimal initialValue ) |
| { |
| super( parentShell ); |
| super.setShellStyle( super.getShellStyle() | SWT.RESIZE ); |
| this.initialValue = initialValue; |
| this.value = new BigDecimal( initialValue.toString() ); |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| protected void configureShell( Shell shell ) |
| { |
| super.configureShell( shell ); |
| shell.setText( Messages.getString( "IntegerDialog.IntegerEditor" ) ); //$NON-NLS-1$ |
| shell.setImage( ValueEditorsActivator.getDefault().getImage( ValueEditorsConstants.IMG_INTEGEREDITOR ) ); |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| protected void createButtonsForButtonBar( Composite parent ) |
| { |
| createButton( parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, true ); |
| createButton( parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false ); |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| protected void okPressed() |
| { |
| // returnValue = spinner.getSelection(); |
| super.okPressed(); |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| protected Control createDialogArea( Composite parent ) |
| { |
| // Composite |
| Composite composite = ( Composite ) super.createDialogArea( parent ); |
| composite.setLayout( new GridLayout( 3, false ) ); |
| GridData gd = new GridData( GridData.FILL_BOTH ); |
| composite.setLayoutData( gd ); |
| |
| // - Button |
| Button minusButton = new Button( composite, SWT.PUSH ); |
| minusButton.setText( "-" ); //$NON-NLS-1$ |
| minusButton.addSelectionListener( new SelectionAdapter() |
| { |
| public void widgetSelected( SelectionEvent e ) |
| { |
| addToValue( -1 ); |
| text.selectAll(); |
| } |
| } ); |
| |
| // Text |
| text = new Text( composite, SWT.BORDER ); |
| text.setLayoutData( new GridData( GridData.FILL_HORIZONTAL ) ); |
| text.addModifyListener( new ModifyListener() |
| { |
| public void modifyText( ModifyEvent e ) |
| { |
| updateValueFromText(); |
| } |
| } ); |
| text.addVerifyListener( new VerifyListener() |
| { |
| public void verifyText( VerifyEvent e ) |
| { |
| // Prevent the user from entering anything but an integer |
| if ( !e.text.matches( "(-)?([0-9])*" ) ) //$NON-NLS-1$ |
| { |
| e.doit = false; |
| } |
| } |
| } ); |
| text.addKeyListener( new KeyAdapter() |
| { |
| public void keyPressed( KeyEvent e ) |
| { |
| if ( e.keyCode == SWT.ARROW_UP ) |
| { |
| addToValue( 1 ); |
| e.doit = false; |
| text.selectAll(); |
| } |
| else if ( e.keyCode == SWT.ARROW_DOWN ) |
| { |
| addToValue( -1 ); |
| e.doit = false; |
| text.selectAll(); |
| } |
| else if ( e.keyCode == SWT.PAGE_UP ) |
| { |
| addToValue( 100 ); |
| e.doit = false; |
| text.selectAll(); |
| } |
| else if ( e.keyCode == SWT.PAGE_DOWN ) |
| { |
| addToValue( -100 ); |
| e.doit = false; |
| text.selectAll(); |
| } |
| } |
| } ); |
| |
| // + Button |
| Button plusButton = new Button( composite, SWT.PUSH ); |
| plusButton.setText( "+" ); //$NON-NLS-1$ |
| plusButton.addSelectionListener( new SelectionAdapter() |
| { |
| public void widgetSelected( SelectionEvent e ) |
| { |
| addToValue( 1 ); |
| text.selectAll(); |
| } |
| } ); |
| |
| updateTextValue(); |
| |
| // Setting focus |
| text.setFocus(); |
| |
| applyDialogFont( composite ); |
| return composite; |
| } |
| |
| |
| /** |
| * Updates the text value. |
| */ |
| private void updateTextValue() |
| { |
| text.setText( value.toString() ); |
| } |
| |
| |
| /** |
| * Adds the given integer to the value. |
| * |
| * @param i the integer |
| */ |
| private void addToValue( int i ) |
| { |
| value = value.add( new BigDecimal( i ) ); |
| |
| updateTextValue(); |
| } |
| |
| |
| /** |
| * Updates the value from the text's value. |
| */ |
| private void updateValueFromText() |
| { |
| try |
| { |
| BigDecimal newValue = new BigDecimal( text.getText() ); |
| value = newValue; |
| } |
| catch ( NumberFormatException e ) |
| { |
| // Nothing to do |
| } |
| } |
| |
| |
| /** |
| * Gets the integer. |
| * |
| * @return the integer |
| */ |
| public BigDecimal getInteger() |
| { |
| return value; |
| } |
| |
| |
| /** |
| * Indicates if the dialog is dirty. |
| * |
| * @return |
| * <code>true</code> if the dialog is dirty, |
| * <code>false</code> if not. |
| */ |
| public boolean isDirty() |
| { |
| return !initialValue.equals( value ); |
| } |
| } |