bundles/org.eclipse.ui.workbench/Eclipse UI/org/eclipse/ui/internal/dialogs/PreferencesPageContainer.java - platform/eclipse.platform.ui - Git at Google

 /*******************************************************************************
  * Copyright (c) 2004, 2006 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.internal.dialogs;

 import org.eclipse.jface.dialogs.IDialogConstants;
 import org.eclipse.jface.preference.IPreferenceNode;
 import org.eclipse.jface.preference.IPreferencePageContainer;
 import org.eclipse.jface.preference.IPreferenceStore;
 import org.eclipse.jface.resource.JFaceResources;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.custom.ScrolledComposite;
 import org.eclipse.swt.events.MouseAdapter;
 import org.eclipse.swt.events.MouseEvent;
 import org.eclipse.swt.graphics.Color;
 import org.eclipse.swt.graphics.Font;
 import org.eclipse.swt.graphics.Point;
 import org.eclipse.swt.graphics.Rectangle;
 import org.eclipse.swt.layout.FormAttachment;
 import org.eclipse.swt.layout.FormData;
 import org.eclipse.swt.layout.FormLayout;
 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;

 /**
  * The PreferencesPageContainer is the container object for the preference pages
  * in a node.
  */
 public class PreferencesPageContainer implements IPreferencePageContainer {

 	private Composite control;

 	private ScrolledComposite scrolled;

 	private class PreferenceEntry {

 		Composite composite;

 		IPreferenceNode node;

 		String title;

 		int offset;

 		Label expandImage;

 		Label titleLabel;

 		Composite pageContainer;

 		/**
 		 * Create a new instance of the receiver.
 		 *
 		 * @param displayedNode
 		 * @param pageTitle
 		 */
 		PreferenceEntry(IPreferenceNode displayedNode, String pageTitle) {
 			node = displayedNode;
 			title = pageTitle;
 		}

 		/**
 		 * Add the subnodes of the receiver.
 		 */
 		private void addSubNodes() {
 			IPreferenceNode[] subnodes = node.getSubNodes();
 			PreferenceEntry previous = null;
 			for (int i = 0; i < subnodes.length; i++) {
 				PreferenceEntry entry = createEntry(subnodes[i], subnodes[i]
 						.getLabelText(), offset + 1);
 				if (previous == null) {
 					entry.composite.moveBelow(this.composite);
 				} else {
 					entry.composite.moveBelow(previous.composite);
 				}
 				previous = entry;
 			}
 		}

 		/**
 		 * Create the contents of the entry in parent. When laying this out
 		 * indent the composite ident units.
 		 *
 		 * @param indent
 		 */
 		void createContents(int indent) {

 			composite = new Composite(control, SWT.NULL);

 			// Create the title area which will contain
 			// a title, message, and image.

 			GridData gridData = new GridData(GridData.FILL_HORIZONTAL);
 			gridData.horizontalIndent = IDialogConstants.SMALL_INDENT * indent;
 			composite.setLayoutData(gridData);

 			FormLayout layout = new FormLayout();
 			layout.marginHeight = 0;
 			layout.marginWidth = 0;
 			composite.setLayout(layout);

 			Font titleFont = JFaceResources.getBannerFont();

 			expandImage = new Label(composite, SWT.RIGHT);
 			expandImage.setText("+");//$NON-NLS-1$
 			expandImage.setFont(titleFont);

 			FormData imageData = new FormData();
 			imageData.top = new FormAttachment(0);
 			imageData.left = new FormAttachment(0,
 					IDialogConstants.HORIZONTAL_SPACING);
 			expandImage.setLayoutData(imageData);

 			// Title image
 			titleLabel = new Label(composite, SWT.LEFT);
 			titleLabel.setText(title);
 			titleLabel.setFont(titleFont);

 			FormData titleData = new FormData();
 			titleData.right = new FormAttachment(100);
 			titleData.top = new FormAttachment(0);
 			titleData.left = new FormAttachment(expandImage,
 					IDialogConstants.HORIZONTAL_SPACING);
 			titleLabel.setLayoutData(titleData);

 			titleLabel.addMouseListener(new MouseAdapter() {
 				/*
 				 * (non-Javadoc)
 				 *
 				 * @see org.eclipse.swt.events.MouseAdapter#mouseDown(org.eclipse.swt.events.MouseEvent)
 				 */
 				public void mouseDown(MouseEvent e) {

 					if (pageContainer == null) {
 						boolean adjustScrollbars = false;

 						pageContainer = new Composite(composite, SWT.BORDER);

 						FormData containerData = new FormData();
 						containerData.top = new FormAttachment(titleLabel, 0);
 						containerData.left = new FormAttachment(0);
 						containerData.right = new FormAttachment(100);
 						pageContainer.setLayoutData(containerData);

 						pageContainer.setLayout(new GridLayout());

 						node.createPage();
 						node.getPage().createControl(pageContainer);
 						node.getPage().setContainer(
 								PreferencesPageContainer.this);
 						node.getPage().getControl().setLayoutData(
 								new GridData(GridData.FILL_BOTH));
 						adjustScrollbars = true;

 						Point contentSize = node.getPage().computeSize();
 						Rectangle totalArea = composite.getClientArea();

 						if (contentSize.x < totalArea.width) {
 							contentSize.x = totalArea.width;
 						}

 						node.getPage().setSize(contentSize);
 						if (adjustScrollbars) {
 							adjustScrollbars(contentSize);
 						}

 						expandImage.setText("-");//$NON-NLS-1$

 						addSubNodes();

 						setSelectionColors(composite.getDisplay()
 								.getSystemColor(SWT.COLOR_INFO_BACKGROUND));
 					} else {
 						setSelectionColors(null);
 						pageContainer.dispose();
 						pageContainer = null;
 						expandImage.setText("+");//$NON-NLS-1$
 					}

 					control.layout(true);
 				}
 			});
 			offset = indent;
 		}

 		/**
 		 * Set the background colors and the labels due to selection.
 		 *
 		 * @param highlight
 		 *            The highlight to set
 		 */
 		private void setSelectionColors(Color highlight) {
 			composite.setBackground(highlight);
 			titleLabel.setBackground(highlight);
 			expandImage.setBackground(highlight);
 		}

 	}

 	/**
 	 * Create a new instance of the receiver.
 	 */
 	public PreferencesPageContainer() {
 		super();
 	}

 	/**
 	 * Create the contents area of the composite.
 	 *
 	 * @param parent
 	 * @param style
 	 */
 	void createContents(Composite parent, int style) {
 		scrolled = new ScrolledComposite(parent, SWT.V_SCROLL | SWT.H_SCROLL);

 		GridData newPageData = new GridData(GridData.FILL_BOTH);
 		scrolled.setLayoutData(newPageData);

 		control = new Composite(scrolled, style);

 		scrolled.setContent(control);
 		scrolled.setExpandVertical(true);
 		scrolled.setExpandHorizontal(true);
 		GridData controlData = new GridData(GridData.FILL_BOTH);
 		control.setLayoutData(controlData);

 		GridLayout layout = new GridLayout();
 		layout.marginHeight = 0;
 		layout.marginWidth = 0;
 		layout.verticalSpacing = 1;
 		control.setLayout(layout);

 	}

 	/**
 	 * Return the top level control
 	 *
 	 * @return Control
 	 */
 	Control getControl() {
 		return control;
 	}

 	/**
 	 * Show the selected node. Return whether or not this succeeded.
 	 *
 	 * @param node
 	 * @return <code>true</code> if the page selection was sucessful
 	 *         <code>false</code> is unsuccessful
 	 */
 	boolean show(IPreferenceNode node) {
 		createGeneralEntry(node);
 		control.layout(true);
 		return true;
 	}

 	/**
 	 * Create an entry for the receiver with the general tag. Do not recurse
 	 * through the children as this is the implied top node.
 	 *
 	 * @param node
 	 */
 	private void createGeneralEntry(IPreferenceNode node) {
 		PreferenceEntry entry = createEntry(node, "General", 0); //$NON-NLS-1$
 		entry.addSubNodes();

 	}

 	/**
 	 * Create an entry with the given title for the IPreferenceNode with an
 	 * indent i.
 	 *
 	 * @param node
 	 * @param name
 	 * @param indent
 	 * @return the entry
 	 */
 	private PreferenceEntry createEntry(IPreferenceNode node, String name,
 			int indent) {
 		PreferenceEntry entry = new PreferenceEntry(node, name);
 		entry.createContents(indent);
 		return entry;
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.jface.preference.IPreferencePageContainer#getPreferenceStore()
 	 */
 	public IPreferenceStore getPreferenceStore() {
 		// TODO Auto-generated method stub
 		return null;
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.jface.preference.IPreferencePageContainer#updateButtons()
 	 */
 	public void updateButtons() {
 		// TODO Auto-generated method stub

 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.jface.preference.IPreferencePageContainer#updateMessage()
 	 */
 	public void updateMessage() {
 		// TODO Auto-generated method stub

 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.jface.preference.IPreferencePageContainer#updateTitle()
 	 */
 	public void updateTitle() {
 		// TODO Auto-generated method stub

 	}

 	/**
 	 * Adjust the scrollbars for the content that just got added.
 	 *
 	 * @param contentSize
 	 */
 	private void adjustScrollbars(Point contentSize) {

 		Point size = control.getSize();
 		scrolled.setMinHeight(size.y + contentSize.y);
 		scrolled.setMinWidth(Math.max(size.x, contentSize.x));
 	}

 }
	/*******************************************************************************
	* Copyright (c) 2004, 2006 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.internal.dialogs;

	import org.eclipse.jface.dialogs.IDialogConstants;
	import org.eclipse.jface.preference.IPreferenceNode;
	import org.eclipse.jface.preference.IPreferencePageContainer;
	import org.eclipse.jface.preference.IPreferenceStore;
	import org.eclipse.jface.resource.JFaceResources;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.custom.ScrolledComposite;
	import org.eclipse.swt.events.MouseAdapter;
	import org.eclipse.swt.events.MouseEvent;
	import org.eclipse.swt.graphics.Color;
	import org.eclipse.swt.graphics.Font;
	import org.eclipse.swt.graphics.Point;
	import org.eclipse.swt.graphics.Rectangle;
	import org.eclipse.swt.layout.FormAttachment;
	import org.eclipse.swt.layout.FormData;
	import org.eclipse.swt.layout.FormLayout;
	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;

	/**
	* The PreferencesPageContainer is the container object for the preference pages
	* in a node.
	*/
	public class PreferencesPageContainer implements IPreferencePageContainer {

	private Composite control;

	private ScrolledComposite scrolled;

	private class PreferenceEntry {

	Composite composite;

	IPreferenceNode node;

	String title;

	int offset;

	Label expandImage;

	Label titleLabel;

	Composite pageContainer;

	/**
	* Create a new instance of the receiver.
	*
	* @param displayedNode
	* @param pageTitle
	*/
	PreferenceEntry(IPreferenceNode displayedNode, String pageTitle) {
	node = displayedNode;
	title = pageTitle;
	}

	/**
	* Add the subnodes of the receiver.
	*/
	private void addSubNodes() {
	IPreferenceNode[] subnodes = node.getSubNodes();
	PreferenceEntry previous = null;
	for (int i = 0; i < subnodes.length; i++) {
	PreferenceEntry entry = createEntry(subnodes[i], subnodes[i]
	.getLabelText(), offset + 1);
	if (previous == null) {
	entry.composite.moveBelow(this.composite);
	} else {
	entry.composite.moveBelow(previous.composite);
	}
	previous = entry;
	}
	}

	/**
	* Create the contents of the entry in parent. When laying this out
	* indent the composite ident units.
	*
	* @param indent
	*/
	void createContents(int indent) {

	composite = new Composite(control, SWT.NULL);

	// Create the title area which will contain
	// a title, message, and image.

	GridData gridData = new GridData(GridData.FILL_HORIZONTAL);
	gridData.horizontalIndent = IDialogConstants.SMALL_INDENT * indent;
	composite.setLayoutData(gridData);

	FormLayout layout = new FormLayout();
	layout.marginHeight = 0;
	layout.marginWidth = 0;
	composite.setLayout(layout);

	Font titleFont = JFaceResources.getBannerFont();

	expandImage = new Label(composite, SWT.RIGHT);
	expandImage.setText("+");//$NON-NLS-1$
	expandImage.setFont(titleFont);

	FormData imageData = new FormData();
	imageData.top = new FormAttachment(0);
	imageData.left = new FormAttachment(0,
	IDialogConstants.HORIZONTAL_SPACING);
	expandImage.setLayoutData(imageData);

	// Title image
	titleLabel = new Label(composite, SWT.LEFT);
	titleLabel.setText(title);
	titleLabel.setFont(titleFont);

	FormData titleData = new FormData();
	titleData.right = new FormAttachment(100);
	titleData.top = new FormAttachment(0);
	titleData.left = new FormAttachment(expandImage,
	IDialogConstants.HORIZONTAL_SPACING);
	titleLabel.setLayoutData(titleData);

	titleLabel.addMouseListener(new MouseAdapter() {
	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.swt.events.MouseAdapter#mouseDown(org.eclipse.swt.events.MouseEvent)
	*/
	public void mouseDown(MouseEvent e) {

	if (pageContainer == null) {
	boolean adjustScrollbars = false;

	pageContainer = new Composite(composite, SWT.BORDER);

	FormData containerData = new FormData();
	containerData.top = new FormAttachment(titleLabel, 0);
	containerData.left = new FormAttachment(0);
	containerData.right = new FormAttachment(100);
	pageContainer.setLayoutData(containerData);

	pageContainer.setLayout(new GridLayout());

	node.createPage();
	node.getPage().createControl(pageContainer);
	node.getPage().setContainer(
	PreferencesPageContainer.this);
	node.getPage().getControl().setLayoutData(
	new GridData(GridData.FILL_BOTH));
	adjustScrollbars = true;

	Point contentSize = node.getPage().computeSize();
	Rectangle totalArea = composite.getClientArea();

	if (contentSize.x < totalArea.width) {
	contentSize.x = totalArea.width;
	}

	node.getPage().setSize(contentSize);
	if (adjustScrollbars) {
	adjustScrollbars(contentSize);
	}

	expandImage.setText("-");//$NON-NLS-1$

	addSubNodes();

	setSelectionColors(composite.getDisplay()
	.getSystemColor(SWT.COLOR_INFO_BACKGROUND));
	} else {
	setSelectionColors(null);
	pageContainer.dispose();
	pageContainer = null;
	expandImage.setText("+");//$NON-NLS-1$
	}

	control.layout(true);
	}
	});
	offset = indent;
	}

	/**
	* Set the background colors and the labels due to selection.
	*
	* @param highlight
	* The highlight to set
	*/
	private void setSelectionColors(Color highlight) {
	composite.setBackground(highlight);
	titleLabel.setBackground(highlight);
	expandImage.setBackground(highlight);
	}

	}

	/**
	* Create a new instance of the receiver.
	*/
	public PreferencesPageContainer() {
	super();
	}

	/**
	* Create the contents area of the composite.
	*
	* @param parent
	* @param style
	*/
	void createContents(Composite parent, int style) {
	scrolled = new ScrolledComposite(parent, SWT.V_SCROLL \| SWT.H_SCROLL);

	GridData newPageData = new GridData(GridData.FILL_BOTH);
	scrolled.setLayoutData(newPageData);

	control = new Composite(scrolled, style);

	scrolled.setContent(control);
	scrolled.setExpandVertical(true);
	scrolled.setExpandHorizontal(true);
	GridData controlData = new GridData(GridData.FILL_BOTH);
	control.setLayoutData(controlData);

	GridLayout layout = new GridLayout();
	layout.marginHeight = 0;
	layout.marginWidth = 0;
	layout.verticalSpacing = 1;
	control.setLayout(layout);

	}

	/**
	* Return the top level control
	*
	* @return Control
	*/
	Control getControl() {
	return control;
	}

	/**
	* Show the selected node. Return whether or not this succeeded.
	*
	* @param node
	* @return <code>true</code> if the page selection was sucessful
	* <code>false</code> is unsuccessful
	*/
	boolean show(IPreferenceNode node) {
	createGeneralEntry(node);
	control.layout(true);
	return true;
	}

	/**
	* Create an entry for the receiver with the general tag. Do not recurse
	* through the children as this is the implied top node.
	*
	* @param node
	*/
	private void createGeneralEntry(IPreferenceNode node) {
	PreferenceEntry entry = createEntry(node, "General", 0); //$NON-NLS-1$
	entry.addSubNodes();

	}

	/**
	* Create an entry with the given title for the IPreferenceNode with an
	* indent i.
	*
	* @param node
	* @param name
	* @param indent
	* @return the entry
	*/
	private PreferenceEntry createEntry(IPreferenceNode node, String name,
	int indent) {
	PreferenceEntry entry = new PreferenceEntry(node, name);
	entry.createContents(indent);
	return entry;
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.jface.preference.IPreferencePageContainer#getPreferenceStore()
	*/
	public IPreferenceStore getPreferenceStore() {
	// TODO Auto-generated method stub
	return null;
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.jface.preference.IPreferencePageContainer#updateButtons()
	*/
	public void updateButtons() {
	// TODO Auto-generated method stub

	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.jface.preference.IPreferencePageContainer#updateMessage()
	*/
	public void updateMessage() {
	// TODO Auto-generated method stub

	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.jface.preference.IPreferencePageContainer#updateTitle()
	*/
	public void updateTitle() {
	// TODO Auto-generated method stub

	}

	/**
	* Adjust the scrollbars for the content that just got added.
	*
	* @param contentSize
	*/
	private void adjustScrollbars(Point contentSize) {

	Point size = control.getSize();
	scrolled.setMinHeight(size.y + contentSize.y);
	scrolled.setMinWidth(Math.max(size.x, contentSize.x));
	}

	}