/*
* Pentaho Data Integration
*
* Copyright (C) 2002-2013 by Pentaho : http://www.pentaho.com
*
* **************************************************************************
*
* Licensed 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.pentaho.di.ui.core.dialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.browser.Browser;
import org.eclipse.swt.events.ShellAdapter;
import org.eclipse.swt.events.ShellEvent;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.FontData;
import org.eclipse.swt.layout.FormAttachment;
import org.eclipse.swt.layout.FormData;
import org.eclipse.swt.layout.FormLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Dialog;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;
import org.pentaho.di.core.Const;
import org.pentaho.di.i18n.BaseMessages;
import org.pentaho.di.ui.core.PropsUI;
import org.pentaho.di.ui.core.database.dialog.DatabaseDialog;
import org.pentaho.di.ui.core.gui.GUIResource;
import org.pentaho.di.ui.trans.step.BaseStepDialog;
public class ShowHelpDialog extends Dialog {
private static Class<?> PKG = DatabaseDialog.class; // for i18n purposes, needed by Translator2!!
private String dialogTitle;
private String url;
private String header;
private Button wOK;
private FormData fdOK;
private Listener lsOK;
private Browser wBrowser;
private FormData fdBrowser;
private Shell shell;
private PropsUI props;
private int buttonHeight = 30;
private int headerHeight = 55;
private int headerLabelPosition = 10;
public ShowHelpDialog( Shell parent, String dialogTitle, String url, String header ) {
super( parent, SWT.NONE );
props = PropsUI.getInstance();
this.dialogTitle = dialogTitle;
this.header = header;
this.url = url;
}
protected Shell createShell( Shell parent ) {
return new Shell( parent, SWT.RESIZE | SWT.MAX | SWT.MIN | SWT.APPLICATION_MODAL );
}
public void open() {
Shell parent = getParent();
Display display = parent.getDisplay();
shell = createShell( parent );
shell.setImage( GUIResource.getInstance().getImageSpoon() );
props.setLook( shell );
FormLayout formLayout = new FormLayout();
shell.setLayout( formLayout );
shell.setText( dialogTitle );
int margin = Const.MARGIN;
// Header
Label wHeader = new Label( shell, SWT.NONE );
wHeader.setText( header );
wHeader.setBackground( wHeader.getParent().getBackground() );
FontData[] fD = wHeader.getFont().getFontData();
fD[ 0 ].setHeight( 16 );
wHeader.setFont( new Font( display, fD[ 0 ] ) );
FormData fdHeader = new FormData();
fdHeader.top = new FormAttachment( 0, headerLabelPosition );
fdHeader.left = new FormAttachment( 0, margin );
wHeader.setLayoutData( fdHeader );
// Canvas
wBrowser = new Browser( shell, SWT.NONE );
props.setLook( wBrowser );
fdBrowser = new FormData();
fdBrowser.left = new FormAttachment( 0, 0 );
fdBrowser.top = new FormAttachment( 0, headerHeight );
fdBrowser.right = new FormAttachment( 100, 0 );
fdBrowser.bottom = new FormAttachment( 100, -buttonHeight );
wBrowser.setLayoutData( fdBrowser );
// Composite
Composite buttonsPane = new Composite( shell, SWT.NONE );
Color grey = new Color( display, 240, 240, 240 );
buttonsPane.setBackground( grey );
buttonsPane.setLayout( new FormLayout() );
FormData fdButtonsPane = new FormData();
fdButtonsPane.left = new FormAttachment( 0, 0 );
fdButtonsPane.right = new FormAttachment( 100, 0 );
fdButtonsPane.bottom = new FormAttachment( 100, 0 );
buttonsPane.setLayoutData( fdButtonsPane );
// Some buttons
wOK = new Button( buttonsPane, SWT.PUSH );
wOK.setText( BaseMessages.getString( PKG, "System.Button.OK" ) );
wOK.setBackground( grey );
fdOK = new FormData();
fdOK.left = new FormAttachment( 50, 0 );
fdOK.bottom = new FormAttachment( 100, 0 );
wOK.setLayoutData( fdOK );
// Add listeners
lsOK = new Listener() {
public void handleEvent( Event e ) {
ok();
}
};
wOK.addListener( SWT.Selection, lsOK );
// Detect [X] or ALT-F4 or something that kills this window...
shell.addShellListener( new ShellAdapter() {
public void shellClosed( ShellEvent e ) {
ok();
}
} );
wBrowser.setUrl( url );
BaseStepDialog.setSize( shell, 800, 600, true );
shell.open();
while ( !shell.isDisposed() ) {
if ( !display.readAndDispatch() ) {
display.sleep();
}
}
}
public void dispose() {
shell.dispose();
}
private void ok() {
dispose();
}
}