com.aptana.ui.widgets.SelectedTemplateComposite.java Source code

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Here is the source code for com.aptana.ui.widgets.SelectedTemplateComposite.java

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/**
 * Aptana Studio
 * Copyright (c) 2011 by Appcelerator, Inc. All Rights Reserved.
 * Licensed under the terms of the GNU Public License (GPL) v3 (with exceptions).
 * Please see the license.html included with this distribution for details.
 * Any modifications to this file must keep this entire header intact.
 */
package com.aptana.ui.widgets;

import java.text.MessageFormat;

import org.eclipse.jface.layout.GridDataFactory;
import org.eclipse.jface.layout.GridLayoutFactory;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Link;

import com.aptana.core.projects.templates.IProjectTemplate;

/**
 * Composite used to display the selected template in a group control
 * 
 * @author nle
 */
public class SelectedTemplateComposite extends Composite {
    private IProjectTemplate projectTemplate;
    private Group group;
    private Image templateIcon;
    private boolean displayingMore = false;

    public SelectedTemplateComposite(Composite parent, IProjectTemplate projectTemplate) {
        super(parent, SWT.NONE);
        this.projectTemplate = projectTemplate;
        createContents();
    }

    protected void createContents() {
        setLayoutData(GridDataFactory.fillDefaults().grab(true, true).create());
        setLayout(GridLayoutFactory.fillDefaults().create());

        group = new Group(this, SWT.NONE);
        group.setText(Messages.SelectedTemplateGroup_Label);
        GridData gd_group = GridDataFactory.fillDefaults().grab(true, false).create();
        group.setLayoutData(gd_group);
        group.setLayout(GridLayoutFactory.swtDefaults().numColumns(2).create());

        if (projectTemplate.getIconURL() != null) {
            Label templateLabel = new Label(group, SWT.NONE);
            templateIcon = ImageDescriptor.createFromURL(projectTemplate.getIconURL()).createImage();
            templateLabel.setImage(templateIcon);
            templateLabel.setLayoutData(GridDataFactory.swtDefaults().align(SWT.LEFT, SWT.BEGINNING).create());
        }

        final Composite labelComp = new Composite(group, SWT.NONE);
        labelComp.setLayoutData(GridDataFactory.fillDefaults().grab(true, true).create());
        labelComp.setLayout(GridLayoutFactory.fillDefaults().create());

        Label templateValue = new Label(labelComp, SWT.WRAP);
        templateValue.setText(projectTemplate.getDisplayName());
        templateValue.setLayoutData(
                GridDataFactory.swtDefaults().align(SWT.FILL, SWT.BEGINNING).grab(true, false).create());

        String description = projectTemplate.getDescription();
        final Link descriptionValue = new Link(labelComp, SWT.WRAP);
        if (description.length() > 150) {
            displayingMore = true;
            int cutoffIndex = description.indexOf(".") + 1; //$NON-NLS-1$
            if (cutoffIndex > 150) {
                cutoffIndex = 150;
            }

            final int cutoff = cutoffIndex;
            description = MessageFormat.format(Messages.SelectedTemplateDesc_More_Label,
                    projectTemplate.getDescription().substring(0, cutoff));
            descriptionValue.addSelectionListener(new SelectionListener() {

                public void widgetSelected(SelectionEvent e) {
                    Rectangle bounds = descriptionValue.getBounds();
                    int width = bounds.width;
                    if (!displayingMore) {
                        descriptionValue.setText(MessageFormat.format(Messages.SelectedTemplateDesc_More_Label,
                                projectTemplate.getDescription().substring(0, cutoff)));
                    } else {
                        descriptionValue.setText(MessageFormat.format(Messages.SelectedTemplateDesc_Less_Label,
                                projectTemplate.getDescription()));
                    }

                    displayingMore = !displayingMore;
                    Point computeSize = descriptionValue.computeSize(width, SWT.DEFAULT);
                    int diff = computeSize.y - bounds.height + 2;
                    descriptionValue.setLayoutData(
                            GridDataFactory.fillDefaults().grab(true, true).hint(computeSize).create());
                    layout(true, true);
                    Point size = getShell().getSize();
                    size.y += diff;
                    getShell().setSize(size);
                }

                public void widgetDefaultSelected(SelectionEvent e) {
                }
            });
        }

        GridData layoutData = new GridData(SWT.FILL, SWT.BEGINNING, true, true, 1, 1);
        descriptionValue.setText(description);
        //
        // // The description is wrapped, so we have to give hints for the dimensions
        Point computeSize = templateValue.computeSize(SWT.DEFAULT, SWT.DEFAULT);
        layoutData.widthHint = 1;
        layoutData.heightHint = computeSize.y * 2;

        descriptionValue.setLayoutData(layoutData);

    }

    public void dispose() {
        if (templateIcon != null) {
            templateIcon.dispose();
        }
        super.dispose();
    }
}