ecommons.waltable/org.eclipse.statet.ecommons.waltable.core/src/org/eclipse/statet/ecommons/waltable/widget/WaitDialog.java

/*=============================================================================#
 # Copyright (c) 2012, 2021 Original NatTable authors and others.
 # 
 # This program and the accompanying materials are made available under the
 # terms of the Eclipse Public License 2.0 which is available at
 # https://www.eclipse.org/legal/epl-2.0.
 # 
 # SPDX-License-Identifier: EPL-2.0
 # 
 # Contributors:
 #     Original NatTable authors and others - initial API and implementation
 #=============================================================================*/

package org.eclipse.statet.ecommons.waltable.widget;

import static org.eclipse.swt.layout.GridData.CENTER;

import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.FontData;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;

import org.eclipse.statet.ecommons.waltable.util.GUIHelper;


public class WaitDialog extends Dialog {

	private String msg;
	private final Image iconImage;
	private Label textLabel;

	public WaitDialog(final Shell parent, final int shellStyle, final String msg, final Image iconImg) {
		super(parent);
		this.msg= msg;
		this.iconImage= iconImg;
		setShellStyle(shellStyle | SWT.APPLICATION_MODAL);
	}

	private void centerDialogOnScreen(final Shell shell) {
		shell.setSize(250, 75);
		final org.eclipse.swt.graphics.Rectangle parentSize= getParentShell().getBounds();
		final org.eclipse.swt.graphics.Rectangle mySize= shell.getBounds();
		int locationX, locationY;
		locationX= (parentSize.width - mySize.width)/2+parentSize.x;
		locationY= (parentSize.height - mySize.height)/2+parentSize.y;
		shell.setLocation(locationX, locationY);
	}

	@Override
	protected Control createContents(final Composite parent) {
		centerDialogOnScreen(getShell());
		
		final Composite composite= new Composite(parent, SWT.NONE);
		composite.setLayout(new GridLayout(2, false));
		composite.setLayoutData(new GridData(CENTER, CENTER, true, true));
		composite.setRedraw(true);

		final Label imgLabel= new Label(composite, SWT.NONE);
		imgLabel.setImage(this.iconImage);
		
		this.textLabel= new Label(composite, SWT.NONE);
		this.textLabel.setLayoutData(new GridData(CENTER, CENTER, true, true));
		this.textLabel.setFont(GUIHelper.getFont(new FontData("Arial", 9, SWT.BOLD))); //$NON-NLS-1$
		this.textLabel.setRedraw(true);
		this.textLabel.setText(this.msg);

		return composite;
	}

	public void setMsg(final String msg) {
		this.msg= msg;
		this.textLabel.setText(msg);
		getShell().layout(new Control[]{this.textLabel});
	}

	@Override
	public boolean close() {
		if (this.iconImage != null) {
			this.iconImage.dispose();
		}
		return super.close();
	}
	
}