org.eclipse.ui.editors.text.TextEditorPreferencePage.java Source code

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Here is the source code for org.eclipse.ui.editors.text.TextEditorPreferencePage.java

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/*******************************************************************************
 * Copyright (c) 2000, 2008 IBM Corporation and others.
 * 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:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.ui.editors.text;

import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.FontData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;

import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.Plugin;

import org.eclipse.jface.preference.FieldEditorPreferencePage;
import org.eclipse.jface.preference.FontFieldEditor;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.preference.PreferenceConverter;
import org.eclipse.jface.resource.JFaceResources;

import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPreferencePage;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.plugin.AbstractUIPlugin;

import org.eclipse.ui.texteditor.AbstractTextEditor;

/**
 * A preference page to set the font used in the default text editor.
 * <p>
 * This preference page uses the text editor's preference bundle and
 * uses the key <code>"PreferencePage.description"</code> to look up
 * the page description. In addition, it uses <code>"PreferencePage.fontEditor"</code>
 * for the editor description.
 * </p>
 * @deprecated As of 2.1, fonts are managed by the workbench, no longer supported
 */
public class TextEditorPreferencePage extends FieldEditorPreferencePage implements IWorkbenchPreferencePage {

    /**
     * Indicates whether the preferences that this page manipulates have been initialized.
     *
     * @since 2.0
     */
    private static boolean fgInitialized = false;

    /**
     * Creates and returns the text editor preference page.
     */
    public TextEditorPreferencePage() {
        super(GRID);

        setDescription(TextEditorMessages.PreferencePage_description);
        Plugin plugin = Platform.getPlugin("org.eclipse.ui.workbench"); //$NON-NLS-1$
        if (plugin instanceof AbstractUIPlugin) {
            AbstractUIPlugin uiPlugin = (AbstractUIPlugin) plugin;
            setPreferenceStore(uiPlugin.getPreferenceStore());
        }
    }

    /*
     * @see IDialogPage#createControl(org.eclipse.swt.widgets.Composite)
     */
    public void createControl(Composite parent) {
        super.createControl(parent);
        PlatformUI.getWorkbench().getHelpSystem().setHelp(getControl(),
                ITextEditorHelpContextIds.TEXT_EDITOR_PREFERENCE_PAGE);
    }

    /*
     * @see FieldEditorPreferencePage#createFieldEditors()
     */
    public void createFieldEditors() {
        addField(new FontFieldEditor(JFaceResources.TEXT_FONT, TextEditorMessages.PreferencePage_fontEditor,
                getFieldEditorParent()));
    }

    /*
     * @see IWorkbenchPreferencePage#init(org.eclipse.ui.IWorkbench)
     */
    public void init(IWorkbench workbench) {
    }

    /**
     * Initializes the defaults for the given store.
     *
     * @param store the preference store
     * @since 2.0
     */
    public static void initDefaults(IPreferenceStore store) {

        if (fgInitialized)
            return;

        fgInitialized = true;

        Font font = JFaceResources.getTextFont();
        if (font != null) {
            FontData[] data = font.getFontData();
            if (data != null && data.length > 0)
                PreferenceConverter.setDefault(store, JFaceResources.TEXT_FONT, data[0]);
        }

        Display display = Display.getDefault();
        Color color = display.getSystemColor(SWT.COLOR_LIST_FOREGROUND);
        PreferenceConverter.setDefault(store, AbstractTextEditor.PREFERENCE_COLOR_FOREGROUND, color.getRGB());
        store.setDefault(AbstractTextEditor.PREFERENCE_COLOR_FOREGROUND_SYSTEM_DEFAULT, true);

        color = display.getSystemColor(SWT.COLOR_LIST_BACKGROUND);
        PreferenceConverter.setDefault(store, AbstractTextEditor.PREFERENCE_COLOR_BACKGROUND, color.getRGB());
        store.setDefault(AbstractTextEditor.PREFERENCE_COLOR_BACKGROUND_SYSTEM_DEFAULT, true);
    }
}