de.fraunhofer.esk.ernest.visualization.ganttchart.preferences.VisualizationPreferencePage.java Source code

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Here is the source code for de.fraunhofer.esk.ernest.visualization.ganttchart.preferences.VisualizationPreferencePage.java

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/*******************************************************************************
 * Copyright (c) 2015 Fraunhofer Institute for Embedded Systems and
 * Communication Technologies ESK
 *
 * 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
 *
 * This file is part of ERNEST.
 *
 * Contributors:
 * Fraunhofer ESK - initial API and implementation
 *******************************************************************************/
package de.fraunhofer.esk.ernest.visualization.ganttchart.preferences;

import java.util.ArrayList;

import org.eclipse.jface.preference.ColorFieldEditor;
import org.eclipse.jface.preference.FieldEditor;
import org.eclipse.jface.preference.IntegerFieldEditor;
import org.eclipse.jface.preference.PreferencePage;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPreferencePage;
import org.eclipse.ui.PlatformUI;

import de.fraunhofer.esk.ernest.visualization.ganttchart.editor.Activator;
import de.fraunhofer.esk.ernest.visualization.ganttchart.editor.views.ConstraintView;

/**
 * Preference Page for the Visualization Plug-In.
 * 
 */
public class VisualizationPreferencePage extends PreferencePage implements IWorkbenchPreferencePage {

    /**
     * List of preference field editors.
     */
    private ArrayList<FieldEditor> preferenceEditors = new ArrayList<FieldEditor>();

    /**
     * Default constructor.
     */
    public VisualizationPreferencePage() {
    }

    /**
     * Calls super constructor.
     * @see {@link PreferencePage#PreferencePage(String)}
     */
    public VisualizationPreferencePage(String title) {
        super(title);
    }

    /**
     * Calls super constructor.
     * @see {@link PreferencePage#PreferencePage(String,ImageDescriptor)}
     */
    public VisualizationPreferencePage(String title, ImageDescriptor image) {
        super(title, image);
    }

    @Override
    public void init(IWorkbench workbench) {
        setPreferenceStore(Activator.getDefault().getPreferenceStore());

    }

    /**
     * Create {@link ColorFieldEditor} and add it to this page.
     * 
     * @param id the name of the preference this field de.fraunhofer.esk.ernest.visualization.ganttChart.editor works on
     * @param text the label text of the field de.fraunhofer.esk.ernest.visualization.ganttChart.editor
     * @param parent the parent of the field de.fraunhofer.esk.ernest.visualization.ganttChart.editor's control
     */
    protected void createColorEditor(String id, String text, Composite parent) {
        ColorFieldEditor editor = new ColorFieldEditor(id, text, parent);
        editor.setPage(this);
        editor.setPreferenceStore(getPreferenceStore());
        editor.load();
        preferenceEditors.add(editor);
    }

    /**
     * Create {@link IntegerFieldEditor} and add it to this page.
     * 
     * @param id the name of the preference this field de.fraunhofer.esk.ernest.visualization.ganttChart.editor works on
     * @param text the label text of the field de.fraunhofer.esk.ernest.visualization.ganttChart.editor
     * @param parent the parent of the field de.fraunhofer.esk.ernest.visualization.ganttChart.editor's control
     */
    protected void createIntEditor(String id, String text, Composite parent) {
        IntegerFieldEditor editor = new IntegerFieldEditor(id, text, parent);
        editor.setPage(this);
        editor.setPreferenceStore(getPreferenceStore());
        editor.load();
        preferenceEditors.add(editor);
    }

    @Override
    protected Control createContents(Composite parent) {
        createColorEditor(PreferenceConstants.ID_BACKGROUND_DEFAULT, "Background Color", parent);

        createColorEditor(PreferenceConstants.ID_BACKGROUND_HEADER, "Background Header", parent);

        createColorEditor(PreferenceConstants.ID_EVENT, "Event Color", parent);

        createColorEditor(PreferenceConstants.ID_EVENT_ERRORS, "Event Error Color", parent);

        createColorEditor(PreferenceConstants.ID_CONSTRAINT_INFO, "Constraint Info Color", parent);

        createColorEditor(PreferenceConstants.ID_CONSTRAINT_ERROR, "Constraint Error Color", parent);

        createColorEditor(PreferenceConstants.ID_TEXTCOLOR, "Text Color", parent);

        createColorEditor(PreferenceConstants.ID_LINECOLOR, "Line Color", parent);

        createIntEditor(PreferenceConstants.ID_SIZE_UIELEMENTS, "Size of UI Elements in %", parent);

        return null;
    }

    @Override
    protected void performDefaults() {
        for (FieldEditor editor : preferenceEditors) {
            editor.loadDefault();
        }

        super.performDefaults();
    }

    @Override
    public boolean performOk() {
        for (FieldEditor editor : preferenceEditors) {
            editor.store();
        }

        // we get the ConstraintView of the current active page and reload it to
        // reflect the changes in the preferences
        ConstraintView view = (ConstraintView) PlatformUI.getWorkbench().getActiveWorkbenchWindow().getActivePage()
                .findView(ConstraintView.ID);
        if (view != null) {
            view.refresh();
        }
        return super.performOk();
    }
}