Package bndtools.utils

Source Code of bndtools.utils.MessagesPopupDialog

/*******************************************************************************
* Copyright (c) 2010 Neil Bartlett.
* 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:
*     Neil Bartlett - initial API and implementation
*******************************************************************************/
package bndtools.utils;

import org.eclipse.jface.action.IAction;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IMessageProvider;
import org.eclipse.jface.dialogs.PopupDialog;
import org.eclipse.jface.preference.JFacePreferences;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.swt.SWT;
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.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.forms.HyperlinkGroup;
import org.eclipse.ui.forms.HyperlinkSettings;
import org.eclipse.ui.forms.IMessage;
import org.eclipse.ui.forms.events.HyperlinkAdapter;
import org.eclipse.ui.forms.events.HyperlinkEvent;
import org.eclipse.ui.forms.widgets.Hyperlink;
import org.eclipse.ui.plugin.AbstractUIPlugin;

import bndtools.Plugin;

public class MessagesPopupDialog extends PopupDialog {

    private final Control controlAttachment;
    private final IMessage[] messages;
    private final IWorkbenchPart part;
    private final HyperlinkGroup hyperlinkGroup;

    private final Image bulletImg = AbstractUIPlugin.imageDescriptorFromPlugin(Plugin.PLUGIN_ID, "/icons/bullet_go.png").createImage();

    public MessagesPopupDialog(Control controlAttachment, IMessage[] messages, IWorkbenchPart part) {
        super(null, PopupDialog.INFOPOPUP_SHELLSTYLE, true, false, false, false, false, null, null);
        this.controlAttachment = controlAttachment;
        this.messages = messages;
        this.part = part;

        this.hyperlinkGroup = new HyperlinkGroup(controlAttachment.getDisplay());
        this.hyperlinkGroup.setHyperlinkUnderlineMode(HyperlinkSettings.UNDERLINE_ALWAYS);

    }

    @Override
    public boolean close() {
        boolean result = super.close();
        bulletImg.dispose();
        return result;
    }

    @SuppressWarnings("unused")
    @Override
    protected Control createDialogArea(Composite parent) {
        Composite composite = (Composite) super.createDialogArea(parent);
        composite.setLayout(new GridLayout(1, false));

        for (int i = 0; i < messages.length; i++) {
            if (i > 0) {
                Label separator = new Label(composite, SWT.SEPARATOR | SWT.HORIZONTAL);
                separator.setLayoutData(new GridData(SWT.FILL, SWT.TOP, false, false, 2, 1));
            }

            // Message Type Image Label
            Composite pnlTitle = new Composite(composite, SWT.NONE);
            pnlTitle.setLayout(new GridLayout(2, false));
            Label lblImage = new Label(pnlTitle, SWT.NONE);
            lblImage.setImage(getMessageImage(messages[i].getMessageType()));

            // Message Label
            StringBuilder builder = new StringBuilder();
            if (messages[i].getPrefix() != null) {
                builder.append(messages[i].getPrefix());
            }
            builder.append(messages[i].getMessage());
            Label lblText = new Label(pnlTitle, SWT.WRAP);
            lblText.setText(builder.toString());
            lblText.setFont(JFaceResources.getFontRegistry().getItalic(JFaceResources.DIALOG_FONT));
            lblText.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

            // Fix actions, if present
            Object data = messages[i].getData();
            IAction[] fixes;
            if (data instanceof IAction) {
                fixes = new IAction[] {
                    (IAction) data
                };
            } else if (data instanceof IAction[]) {
                fixes = (IAction[]) data;
            } else {
                fixes = null;
            }

            if (fixes != null) {
                // new Label(composite, SWT.SEPARATOR | SWT.HORIZONTAL);
                Composite pnlFixes = new Composite(composite, SWT.NONE);
                pnlFixes.setLayout(new GridLayout(3, false));

                Label lblFixes = new Label(pnlFixes, SWT.NONE);
                lblFixes.setText("Available Fixes:");
                lblFixes.setForeground(JFaceResources.getColorRegistry().get(JFacePreferences.QUALIFIER_COLOR));

                for (int j = 0; j < fixes.length; j++) {
                    if (j > 0)
                        new Label(pnlFixes, SWT.NONE); // Spacer

                    new Label(pnlFixes, SWT.NONE).setImage(bulletImg);

                    final IAction fix = fixes[j];
                    Hyperlink fixLink = new Hyperlink(pnlFixes, SWT.NONE);
                    hyperlinkGroup.add(fixLink);
                    fixLink.setText(fix.getText());
                    fixLink.setHref(fix);
                    fixLink.addHyperlinkListener(new HyperlinkAdapter() {
                        @Override
                        public void linkActivated(HyperlinkEvent e) {
                            fix.run();
                            close();
                            // part.getSite().getPage().activate(part);
                            part.setFocus();
                        }
                    });
                    fixLink.setLayoutData(new GridData(SWT.LEFT, SWT.TOP, false, false));
                }
            }
        }

        return composite;
    }

    @Override
    protected Point getInitialSize() {
        return super.getInitialSize();
    }

    @Override
    protected Point getInitialLocation(Point initialSize) {
        Rectangle linkBounds = controlAttachment.getBounds();
        linkBounds = controlAttachment.getDisplay().map(controlAttachment.getParent(), null, linkBounds);
        return new Point(linkBounds.x, linkBounds.y + linkBounds.height);
    }

    static Image getMessageImage(int messageType) {
        switch (messageType) {
        case IMessageProvider.INFORMATION :
            return JFaceResources.getImage(Dialog.DLG_IMG_MESSAGE_INFO);
        case IMessageProvider.WARNING :
            return JFaceResources.getImage(Dialog.DLG_IMG_MESSAGE_WARNING);
        case IMessageProvider.ERROR :
            return JFaceResources.getImage(Dialog.DLG_IMG_MESSAGE_ERROR);
        default :
            return null;
        }
    }

}
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