bundles/org.eclipse.ui.glance/src/org/eclipse/ui/glance/internal/preferences/GlancePreferencePage.java

/******************************************************************************* 
 * Copyright (c) 2017 Exyte  
 * 
 * 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: 
 *     Yuri Strot - initial API and Implementation 
 *******************************************************************************/
package org.eclipse.ui.glance.internal.preferences;

import org.eclipse.jface.preference.BooleanFieldEditor;
import org.eclipse.jface.preference.ColorFieldEditor;
import org.eclipse.jface.preference.FieldEditorPreferencePage;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.preference.IntegerFieldEditor;
import org.eclipse.swt.SWT;
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.Group;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPreferencePage;
import org.eclipse.ui.IWorkbenchWindow;
import org.eclipse.ui.PlatformUI;

import org.eclipse.ui.glance.internal.GlancePlugin;
import org.eclipse.ui.glance.internal.search.SearchManager;
import org.eclipse.ui.glance.sources.ColorManager;

/**
 * @author Yuri Strot
 * 
 */
public class GlancePreferencePage extends FieldEditorPreferencePage implements IWorkbenchPreferencePage,
		IPreferenceConstants {

	private Button currentWindow;

	public GlancePreferencePage() {
		super(GRID);
	}

	public void init(final IWorkbench workbench) {
	}

	@Override
	protected IPreferenceStore doGetPreferenceStore() {
		return GlancePlugin.getDefault().getPreferenceStore();
	}

	@Override
	protected void createFieldEditors() {
		createSearchSettings(getFieldEditorParent());
		createColorSettings(getFieldEditorParent());
		createPanelSettings(getFieldEditorParent());
	}

	/**
	 * Adjust the layout of the field editors so that they are properly aligned.
	 */
	@Override
	protected void adjustGridLayout() {
		super.adjustGridLayout();
		((GridLayout) getFieldEditorParent().getLayout()).numColumns = 1;
	}

	private Group createPanelSettings(final Composite parent) {
		final Group group = new Group(parent, SWT.NONE);
		group.setText("Panel");
		group.setLayout(new GridLayout(1, false));
		group.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

		final Composite composite = new Composite(group, SWT.NONE);
		composite.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

		createCurrentWindowOption(composite);
		addField(new BooleanFieldEditor(PANEL_STARTUP, "Show at startup", composite));
		addField(new BooleanFieldEditor(PANEL_STATUS_LINE, "Show panel in status line when possible", composite));
		addField(new BooleanFieldEditor(PANEL_DIRECTIONS, "Show direction buttons", composite));
		addField(new BooleanFieldEditor(PANEL_CLOSE, "Show close button", composite));
		addField(new BooleanFieldEditor(PANEL_AUTO_INDEXING, "Enable auto indexing", composite));
		addField(new BooleanFieldEditor(SEARCH_INCREMENTAL, "Enable incremental search", composite));
		final IntegerFieldEditor maxIndexingDepthEditor = new IntegerFieldEditor(PANEL_MAX_INDEXING_DEPTH,
				"Max indexing depth for trees:", composite);
		maxIndexingDepthEditor.setValidRange(1, Integer.MAX_VALUE);
		addField(maxIndexingDepthEditor);
		addField(new IntegerFieldEditor(PANEL_TEXT_SIZE, "Default box width in chars:", composite));

		return group;
	}

	private void createCurrentWindowOption(final Composite composite) {
		currentWindow = new Button(composite, SWT.CHECK);
		currentWindow.setText("Show in the current window");
		initCurrentWindow();
	}

	@Override
	protected void performDefaults() {
		super.performDefaults();
		initCurrentWindow();
	}

	private void initCurrentWindow() {
		final IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
		if (window == null) {
			currentWindow.setEnabled(false);
		} else {
			final boolean inWindow = SearchManager.getIntance().isInWindow(window);
			currentWindow.setSelection(inWindow);
		}
	}

	@Override
	public boolean performOk() {
		final IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow();
		if (window != null) {
			final boolean inWindow = SearchManager.getIntance().isInWindow(window);
			final boolean open = currentWindow.getSelection();
			if (open != inWindow) {
				SearchManager.getIntance().setStatusLine(window, open);
			}
		}
		return super.performOk();
	}

	private Group createSearchSettings(final Composite parent) {
		final Group group = new Group(parent, SWT.NONE);
		group.setText("Search");
		group.setLayout(new GridLayout(1, false));
		group.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

		final Composite composite = new Composite(group, SWT.NONE);
		composite.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

		addField(new BooleanFieldEditor(SEARCH_CASE_SENSITIVE, LABEL_CASE_SENSITIVE, composite));
		addField(new BooleanFieldEditor(SEARCH_CAMEL_CASE, LABEL_CAMEL_CASE, composite));
		addField(new BooleanFieldEditor(SEARCH_WORD_PREFIX, LABEL_WORD_PREFIX, composite));
		addField(new BooleanFieldEditor(SEARCH_REGEXP, LABEL_REGEXP, composite));

		return group;
	}

	private Group createColorSettings(final Composite parent) {
		final Group group = new Group(parent, SWT.NONE);
		group.setText("Colors");
		group.setLayout(new GridLayout(1, false));
		group.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

		final Composite composite = new Composite(group, SWT.NONE);
		composite.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

		addField(new ColorEditor(composite, "Highlight:", COLOR_HIGHLIGHT));
		addField(new ColorEditor(composite, "Selection:", COLOR_SELECTION));

		return group;
	}

	private static class ColorEditor extends ColorFieldEditor {

		public ColorEditor(final Composite parent, final String text, final String prefKey) {
			this(parent, text, prefKey, ColorManager.getStore());
		}

		public ColorEditor(final Composite parent, final String text, final String prefKey, IPreferenceStore store) {
			super(prefKey, text, parent);
			super.setPreferenceStore(store);
		}

		@Override
		public void setPreferenceStore(final IPreferenceStore store) {
		}
	}

}