net.sf.eclipsefp.haskell.style.stylishhaskell.ui.SHConfigurationPP.java Source code

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Here is the source code for net.sf.eclipsefp.haskell.style.stylishhaskell.ui.SHConfigurationPP.java

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/** 
 * Copyright (c) 2012 by JP Moresmau
 * This code is made available under the terms of the Eclipse Public License,
 * version 1.0 (EPL). See http://www.eclipse.org/legal/epl-v10.html
 */
package net.sf.eclipsefp.haskell.style.stylishhaskell.ui;

import net.sf.eclipsefp.haskell.style.stylishhaskell.StylishHaskell;
import net.sf.eclipsefp.haskell.style.util.StyleText;

import org.eclipse.core.resources.IProject;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
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.Event;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.Label;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPreferencePage;
import org.eclipse.ui.dialogs.PropertyPage;

/**
 * Property page to assign a stylish haskell configuration to a project
 * @author JP Moresmau
 *
 */
public class SHConfigurationPP extends PropertyPage implements IWorkbenchPreferencePage {
    private Button bProject;
    private SHConfigurationComposite confComp;

    /**
     * 
     */
    public SHConfigurationPP() {
        setDescription(StyleText.sh_title);
    }

    /* (non-Javadoc)
     * @see org.eclipse.ui.IWorkbenchPreferencePage#init(org.eclipse.ui.IWorkbench)
     */
    @Override
    public void init(IWorkbench arg0) {
        // NOOP

    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.preference.PreferencePage#createContents(org.eclipse.swt.widgets.Composite)
     */
    @Override
    protected Control createContents(Composite parent) {
        Composite container = new Composite(parent, SWT.NULL);
        GridLayout layout = new GridLayout();
        layout.numColumns = 1;
        container.setLayout(layout);

        bProject = new Button(container, SWT.CHECK);
        bProject.setText(StyleText.sh_project);

        final Group g = new Group(parent, SWT.NONE);
        //g.setText(StyleText.sh_title);
        g.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_BEGINNING | GridData.GRAB_VERTICAL));
        g.setLayout(new GridLayout(1, true));

        IProject project = (IProject) getElement();
        confComp = new SHConfigurationComposite(g, SWT.NONE);
        confComp.setLayoutData(new GridData(GridData.VERTICAL_ALIGN_BEGINNING | GridData.GRAB_VERTICAL));
        confComp.setConfiguration(StylishHaskell.getProjectConfiguration(project));

        bProject.addSelectionListener(new SelectionAdapter() {
            @Override
            public void widgetSelected(org.eclipse.swt.events.SelectionEvent e) {
                confComp.setEnabled(bProject.getSelection());
                g.setEnabled(bProject.getSelection());
            }
        });

        boolean hasConfig = StylishHaskell.hasProjectConfiguration(project);
        bProject.setSelection(hasConfig);
        confComp.setEnabled(hasConfig);
        g.setEnabled(bProject.getSelection());

        Label space = new Label(parent, SWT.NONE);
        space.setLayoutData(new GridData(GridData.FILL_VERTICAL));

        Dialog.applyDialogFont(parent);
        return container;
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.preference.PreferencePage#performOk()
     */
    @Override
    public boolean performOk() {
        IProject project = (IProject) getElement();
        try {
            if (bProject.getSelection()) {
                StylishHaskell.setProjectConfiguration(confComp.getConfiguration(), project);
            } else {
                StylishHaskell.setProjectConfiguration(null, project);
            }
        } catch (Exception ioe) {
            MessageDialog.openError(getShell(), StyleText.sh_save_error, ioe.getLocalizedMessage());
            return false;
        }
        return super.performOk();
    }

    /* (non-Javadoc)
     * @see org.eclipse.jface.preference.PreferencePage#performDefaults()
     */
    @Override
    protected void performDefaults() {
        bProject.setSelection(false);
        confComp.setConfiguration(StylishHaskell.getWorkspaceConfiguration());
        bProject.notifyListeners(SWT.Selection, new Event());
        super.performDefaults();
    }
}