examples/org.eclipse.jface.snippets/Eclipse JFace Snippets/org/eclipse/jface/snippets/viewers/Snippet010OwnerDraw.java - platform/eclipse.platform.ui - Git at Google

 /*******************************************************************************
  * Copyright (c) 2006, 2007 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.jface.snippets.viewers;

 import org.eclipse.jface.resource.JFaceResources;
 import org.eclipse.jface.viewers.ColumnPixelData;
 import org.eclipse.jface.viewers.IStructuredContentProvider;
 import org.eclipse.jface.viewers.OwnerDrawLabelProvider;
 import org.eclipse.jface.viewers.StructuredSelection;
 import org.eclipse.jface.viewers.TableLayout;
 import org.eclipse.jface.viewers.TableViewer;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.graphics.Rectangle;
 import org.eclipse.swt.graphics.TextLayout;
 import org.eclipse.swt.graphics.TextStyle;
 import org.eclipse.swt.layout.GridData;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Display;
 import org.eclipse.swt.widgets.Event;
 import org.eclipse.swt.widgets.Shell;
 import org.eclipse.swt.widgets.TableColumn;

 public class Snippet010OwnerDraw {

 	public static void main(String[] args) {

 		Display display = new Display();
 		Shell shell = new Shell(display, SWT.CLOSE);
 		shell.setSize(400, 400);
 		shell.setLayout(new GridLayout());

 		Snippet010OwnerDraw example = new Snippet010OwnerDraw();
 		example.createPartControl(shell);

 		shell.open();

 		while (!shell.isDisposed ()) {
 			if (!display.readAndDispatch ()) display.sleep ();
 		}
 		display.dispose();
 	}

 	private static int COLUMN_COUNT = 3;

 	class CountryEntry {

 		String name;

 		String cupYear;

 		private String baseName;

 		/**
 		 * Create a new instance of the receiver.
 		 *
 		 * @param countryName
 		 * @param worldCupYear
 		 */
 		CountryEntry(String countryName, String englishName, String worldCupYear) {
 			name = countryName;
 			cupYear = worldCupYear;
 			baseName = englishName;
 		}

 		/**
 		 * @param index
 		 * @return
 		 */
 		public int getHeight(Event event) {
 			switch (event.index) {
 			case 0:
 				return event.gc.textExtent(name).y;
 			case 1:
 				return 50;
 			case 2:
 				return event.gc.textExtent(cupYear).y;
 			default:
 				return 10;
 			}
 		}

 		/**
 		 * @param index
 		 * @return
 		 */
 		public int getWidth(Event event) {

 			switch (event.index) {
 			case 0:
 				return event.gc.textExtent(getDisplayString().toString()).x + 4;

 			case 1:
 				return 200;

 			case 2:
 				return event.gc.textExtent(cupYear).x + 5;

 			default:
 				return 10;
 			}
 		}

 		/**
 		 * Draw the flag in bounds.
 		 *
 		 * @param event
 		 */
 		protected void drawFlag(Event event) {
 			event.gc.setBackground(viewer.getControl().getDisplay()
 					.getSystemColor(SWT.COLOR_BLUE));

 			Rectangle bounds = event.getBounds();
 			bounds.width += 100;
 			event.gc.fillRectangle(bounds);
 		}

 		/**
 		 * Draw the cup year
 		 *
 		 * @param event
 		 */
 		private void drawCupYear(Event event) {
 			event.gc.drawText(cupYear, event.x, event.y);

 		}

 		/**
 		 * Draw the name of the receiver.
 		 *
 		 * @param event
 		 */
 		protected void drawName(Event event) {

 			StringBuffer buffer = getDisplayString();

 			Display display = viewer.getControl().getDisplay();
 			TextLayout layout = new TextLayout(display);
 			layout.setText(buffer.toString());

 			TextStyle plain = new TextStyle(JFaceResources
 					.getFont(JFaceResources.DEFAULT_FONT), display
 					.getSystemColor(SWT.COLOR_LIST_FOREGROUND), display
 					.getSystemColor(SWT.COLOR_LIST_BACKGROUND));

 			TextStyle italic = new TextStyle(JFaceResources.getFontRegistry()
 					.getItalic(JFaceResources.DEFAULT_FONT), display
 					.getSystemColor(SWT.COLOR_BLUE), display
 					.getSystemColor(SWT.COLOR_LIST_BACKGROUND));

 			layout.setStyle(plain, 0, name.length() - 1);
 			layout.setStyle(italic, name.length(), buffer.length() - 1);

 			layout.draw(event.gc, event.x, event.y);

 		}

 		/**
 		 * @return
 		 */
 		private StringBuffer getDisplayString() {
 			StringBuffer buffer = new StringBuffer();
 			buffer.append(name);
 			buffer.append(" (");
 			buffer.append(baseName);
 			buffer.append(")");
 			return buffer;
 		}

 		/**
 		 * @param event
 		 */
 		public void draw(Event event) {

 			switch (event.index) {
 			case 0:
 				drawName(event);
 				break;
 			case 1:
 				drawFlag(event);
 				break;
 			case 2:
 				drawCupYear(event);
 				break;

 			default:
 				break;
 			}

 		}
 	}

 	private class GermanyEntry extends CountryEntry {

 		GermanyEntry() {
 			super("Deutschland", "Germany", "1990");
 		}

 		/*
 		 * (non-Javadoc)
 		 *
 		 * @see org.eclipse.jface.tests.viewers.OwnerDrawExample.CountryEntry#drawFlag(org.eclipse.swt.widgets.Event)
 		 */
 		protected void drawFlag(Event event) {

 			Rectangle bounds = event.getBounds();
 			bounds.width += 100;
 			int stripeHeight = bounds.height / 3;
 			Rectangle stripe = new Rectangle(bounds.x, bounds.y, bounds.width,
 					stripeHeight);

 			event.gc.setBackground(viewer.getControl().getDisplay()
 					.getSystemColor(SWT.COLOR_BLACK));
 			event.gc.fillRectangle(stripe);

 			stripe.y += stripeHeight;

 			event.gc.setBackground(viewer.getControl().getDisplay()
 					.getSystemColor(SWT.COLOR_YELLOW));
 			event.gc.fillRectangle(stripe);

 			stripe.y += stripeHeight;

 			event.gc.setBackground(viewer.getControl().getDisplay()
 					.getSystemColor(SWT.COLOR_RED));
 			event.gc.fillRectangle(stripe);

 		}

 	}

 	private class AustriaEntry extends CountryEntry {

 		AustriaEntry() {
 			super("\u00D6sterreich", "Austria", "TBD");
 		}

 		/*
 		 * (non-Javadoc)
 		 *
 		 * @see org.eclipse.jface.tests.viewers.OwnerDrawExample.CountryEntry#drawFlag(org.eclipse.swt.widgets.Event)
 		 */
 		protected void drawFlag(Event event) {

 			Rectangle bounds = event.getBounds();
 			bounds.width += 100;
 			int stripeHeight = bounds.height / 3;
 			Rectangle stripe = new Rectangle(bounds.x, bounds.y, bounds.width,
 					stripeHeight);

 			event.gc.setBackground(viewer.getControl().getDisplay()
 					.getSystemColor(SWT.COLOR_RED));
 			event.gc.fillRectangle(stripe);

 			stripe.y += stripeHeight;

 			event.gc.setBackground(viewer.getControl().getDisplay()
 					.getSystemColor(SWT.COLOR_WHITE));
 			event.gc.fillRectangle(stripe);

 			stripe.y += stripeHeight;

 			event.gc.setBackground(viewer.getControl().getDisplay()
 					.getSystemColor(SWT.COLOR_RED));
 			event.gc.fillRectangle(stripe);

 		}
 	}

 	private class EnglandEntry extends CountryEntry {
 		EnglandEntry() {
 			super("Blighty", "England", "1966");
 		}

 		/*
 		 * (non-Javadoc)
 		 *
 		 * @see org.eclipse.jface.tests.viewers.OwnerDrawExample.CountryEntry#drawFlag(org.eclipse.swt.widgets.Event)
 		 */
 		protected void drawFlag(Event event) {

 			Rectangle bounds = event.getBounds();
 			bounds.width += 100;

 			event.gc.setBackground(viewer.getControl().getDisplay()
 					.getSystemColor(SWT.COLOR_RED));
 			event.gc.fillRectangle(new Rectangle(bounds.width / 2 + bounds.x
 					- 5, bounds.y, 10, bounds.height));
 			event.gc.fillRectangle(new Rectangle(bounds.x, bounds.height / 2
 					+ bounds.y - 5, bounds.width, 10));

 		}
 	}

 	private TableViewer viewer;

 	private CountryEntry[] entries;

 	public Snippet010OwnerDraw() {
 		entries = new CountryEntry[3];
 		entries[0] = new AustriaEntry();
 		entries[1] = new GermanyEntry();
 		entries[2] = new EnglandEntry();
 	}

 	/*
 	 * (non-Javadoc)
 	 *
 	 * @see org.eclipse.ui.part.WorkbenchPart#createPartControl(org.eclipse.swt.widgets.Composite)
 	 */
 	public void createPartControl(Composite parent) {
 		viewer = new TableViewer(parent, SWT.FULL_SELECTION);

 		viewer.setContentProvider(new IStructuredContentProvider() {
 			/*
 			 * (non-Javadoc)
 			 *
 			 * @see org.eclipse.jface.viewers.IContentProvider#dispose()
 			 */
 			public void dispose() {
 			};

 			/*
 			 * (non-Javadoc)
 			 *
 			 * @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
 			 */
 			public Object[] getElements(Object inputElement) {
 				return entries;
 			};

 			/*
 			 * (non-Javadoc)
 			 *
 			 * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer,
 			 *      java.lang.Object, java.lang.Object)
 			 */
 			public void inputChanged(org.eclipse.jface.viewers.Viewer viewer,
 					Object oldInput, Object newInput) {
 			}

 		});
 		createColumns();

 		viewer.setLabelProvider(new OwnerDrawLabelProvider() {


 			protected void measure(Event event, Object element) {
 				CountryEntry country = (CountryEntry) element;

 				event.setBounds(new Rectangle(event.x, event.y, country.getWidth(event),
 						country.getHeight(event)));

 			}

 			/*
 			 * (non-Javadoc)
 			 *
 			 * @see org.eclipse.jface.viewers.OwnerDrawLabelProvider#paint(org.eclipse.swt.widgets.Event,
 			 *      java.lang.Object)
 			 */
 			protected void paint(Event event, Object element) {
 				CountryEntry entry = (CountryEntry) element;
 				entry.draw(event);

 			}
 		});

 		OwnerDrawLabelProvider.setUpOwnerDraw(viewer);
 		viewer.setInput(this);
 		GridData data = new GridData(GridData.GRAB_HORIZONTAL
 				| GridData.GRAB_VERTICAL | GridData.FILL_BOTH);

 		viewer.getControl().setLayoutData(data);

 		viewer.setSelection(new StructuredSelection(entries[1]));
 	}

 	/**
 	 * Create the columns to be used in the tree.
 	 */
 	private void createColumns() {
 		TableLayout layout = new TableLayout();
 		viewer.getTable().setLayout(layout);
 		viewer.getTable().setHeaderVisible(true);
 		viewer.getTable().setLinesVisible(true);

 		for (int i = 0; i < COLUMN_COUNT; i++) {
 			TableColumn tc = new TableColumn(viewer.getTable(), SWT.NONE, i);
 			layout.addColumnData(new ColumnPixelData(100));
 			tc.setText(getTitleFor(i));
 		}
 		;
 	}

 	/**
 	 * @param i
 	 * @return
 	 */
 	private String getTitleFor(int i) {
 		switch (i) {
 		case 0:
 			return "Name";
 		case 1:
 			return "Flag";
 		case 2:
 			return "World Cup Year";
 		}
 		return "Unknown";
 	}

 	public void setFocus() {

 	}

 }
	/*******************************************************************************
	* Copyright (c) 2006, 2007 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.jface.snippets.viewers;

	import org.eclipse.jface.resource.JFaceResources;
	import org.eclipse.jface.viewers.ColumnPixelData;
	import org.eclipse.jface.viewers.IStructuredContentProvider;
	import org.eclipse.jface.viewers.OwnerDrawLabelProvider;
	import org.eclipse.jface.viewers.StructuredSelection;
	import org.eclipse.jface.viewers.TableLayout;
	import org.eclipse.jface.viewers.TableViewer;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.graphics.Rectangle;
	import org.eclipse.swt.graphics.TextLayout;
	import org.eclipse.swt.graphics.TextStyle;
	import org.eclipse.swt.layout.GridData;
	import org.eclipse.swt.layout.GridLayout;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Display;
	import org.eclipse.swt.widgets.Event;
	import org.eclipse.swt.widgets.Shell;
	import org.eclipse.swt.widgets.TableColumn;

	public class Snippet010OwnerDraw {

	public static void main(String[] args) {

	Display display = new Display();
	Shell shell = new Shell(display, SWT.CLOSE);
	shell.setSize(400, 400);
	shell.setLayout(new GridLayout());

	Snippet010OwnerDraw example = new Snippet010OwnerDraw();
	example.createPartControl(shell);

	shell.open();

	while (!shell.isDisposed ()) {
	if (!display.readAndDispatch ()) display.sleep ();
	}
	display.dispose();
	}

	private static int COLUMN_COUNT = 3;

	class CountryEntry {

	String name;

	String cupYear;

	private String baseName;

	/**
	* Create a new instance of the receiver.
	*
	* @param countryName
	* @param worldCupYear
	*/
	CountryEntry(String countryName, String englishName, String worldCupYear) {
	name = countryName;
	cupYear = worldCupYear;
	baseName = englishName;
	}

	/**
	* @param index
	* @return
	*/
	public int getHeight(Event event) {
	switch (event.index) {
	case 0:
	return event.gc.textExtent(name).y;
	case 1:
	return 50;
	case 2:
	return event.gc.textExtent(cupYear).y;
	default:
	return 10;
	}
	}

	/**
	* @param index
	* @return
	*/
	public int getWidth(Event event) {

	switch (event.index) {
	case 0:
	return event.gc.textExtent(getDisplayString().toString()).x + 4;

	case 1:
	return 200;

	case 2:
	return event.gc.textExtent(cupYear).x + 5;

	default:
	return 10;
	}
	}

	/**
	* Draw the flag in bounds.
	*
	* @param event
	*/
	protected void drawFlag(Event event) {
	event.gc.setBackground(viewer.getControl().getDisplay()
	.getSystemColor(SWT.COLOR_BLUE));

	Rectangle bounds = event.getBounds();
	bounds.width += 100;
	event.gc.fillRectangle(bounds);
	}

	/**
	* Draw the cup year
	*
	* @param event
	*/
	private void drawCupYear(Event event) {
	event.gc.drawText(cupYear, event.x, event.y);

	}

	/**
	* Draw the name of the receiver.
	*
	* @param event
	*/
	protected void drawName(Event event) {

	StringBuffer buffer = getDisplayString();

	Display display = viewer.getControl().getDisplay();
	TextLayout layout = new TextLayout(display);
	layout.setText(buffer.toString());

	TextStyle plain = new TextStyle(JFaceResources
	.getFont(JFaceResources.DEFAULT_FONT), display
	.getSystemColor(SWT.COLOR_LIST_FOREGROUND), display
	.getSystemColor(SWT.COLOR_LIST_BACKGROUND));

	TextStyle italic = new TextStyle(JFaceResources.getFontRegistry()
	.getItalic(JFaceResources.DEFAULT_FONT), display
	.getSystemColor(SWT.COLOR_BLUE), display
	.getSystemColor(SWT.COLOR_LIST_BACKGROUND));

	layout.setStyle(plain, 0, name.length() - 1);
	layout.setStyle(italic, name.length(), buffer.length() - 1);

	layout.draw(event.gc, event.x, event.y);

	}

	/**
	* @return
	*/
	private StringBuffer getDisplayString() {
	StringBuffer buffer = new StringBuffer();
	buffer.append(name);
	buffer.append(" (");
	buffer.append(baseName);
	buffer.append(")");
	return buffer;
	}

	/**
	* @param event
	*/
	public void draw(Event event) {

	switch (event.index) {
	case 0:
	drawName(event);
	break;
	case 1:
	drawFlag(event);
	break;
	case 2:
	drawCupYear(event);
	break;

	default:
	break;
	}

	}
	}

	private class GermanyEntry extends CountryEntry {

	GermanyEntry() {
	super("Deutschland", "Germany", "1990");
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.jface.tests.viewers.OwnerDrawExample.CountryEntry#drawFlag(org.eclipse.swt.widgets.Event)
	*/
	protected void drawFlag(Event event) {

	Rectangle bounds = event.getBounds();
	bounds.width += 100;
	int stripeHeight = bounds.height / 3;
	Rectangle stripe = new Rectangle(bounds.x, bounds.y, bounds.width,
	stripeHeight);

	event.gc.setBackground(viewer.getControl().getDisplay()
	.getSystemColor(SWT.COLOR_BLACK));
	event.gc.fillRectangle(stripe);

	stripe.y += stripeHeight;

	event.gc.setBackground(viewer.getControl().getDisplay()
	.getSystemColor(SWT.COLOR_YELLOW));
	event.gc.fillRectangle(stripe);

	stripe.y += stripeHeight;

	event.gc.setBackground(viewer.getControl().getDisplay()
	.getSystemColor(SWT.COLOR_RED));
	event.gc.fillRectangle(stripe);

	}

	}

	private class AustriaEntry extends CountryEntry {

	AustriaEntry() {
	super("\u00D6sterreich", "Austria", "TBD");
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.jface.tests.viewers.OwnerDrawExample.CountryEntry#drawFlag(org.eclipse.swt.widgets.Event)
	*/
	protected void drawFlag(Event event) {

	Rectangle bounds = event.getBounds();
	bounds.width += 100;
	int stripeHeight = bounds.height / 3;
	Rectangle stripe = new Rectangle(bounds.x, bounds.y, bounds.width,
	stripeHeight);

	event.gc.setBackground(viewer.getControl().getDisplay()
	.getSystemColor(SWT.COLOR_RED));
	event.gc.fillRectangle(stripe);

	stripe.y += stripeHeight;

	event.gc.setBackground(viewer.getControl().getDisplay()
	.getSystemColor(SWT.COLOR_WHITE));
	event.gc.fillRectangle(stripe);

	stripe.y += stripeHeight;

	event.gc.setBackground(viewer.getControl().getDisplay()
	.getSystemColor(SWT.COLOR_RED));
	event.gc.fillRectangle(stripe);

	}
	}

	private class EnglandEntry extends CountryEntry {
	EnglandEntry() {
	super("Blighty", "England", "1966");
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.jface.tests.viewers.OwnerDrawExample.CountryEntry#drawFlag(org.eclipse.swt.widgets.Event)
	*/
	protected void drawFlag(Event event) {

	Rectangle bounds = event.getBounds();
	bounds.width += 100;

	event.gc.setBackground(viewer.getControl().getDisplay()
	.getSystemColor(SWT.COLOR_RED));
	event.gc.fillRectangle(new Rectangle(bounds.width / 2 + bounds.x
	- 5, bounds.y, 10, bounds.height));
	event.gc.fillRectangle(new Rectangle(bounds.x, bounds.height / 2
	+ bounds.y - 5, bounds.width, 10));

	}
	}

	private TableViewer viewer;

	private CountryEntry[] entries;

	public Snippet010OwnerDraw() {
	entries = new CountryEntry[3];
	entries[0] = new AustriaEntry();
	entries[1] = new GermanyEntry();
	entries[2] = new EnglandEntry();
	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.ui.part.WorkbenchPart#createPartControl(org.eclipse.swt.widgets.Composite)
	*/
	public void createPartControl(Composite parent) {
	viewer = new TableViewer(parent, SWT.FULL_SELECTION);

	viewer.setContentProvider(new IStructuredContentProvider() {
	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.jface.viewers.IContentProvider#dispose()
	*/
	public void dispose() {
	};

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
	*/
	public Object[] getElements(Object inputElement) {
	return entries;
	};

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer,
	* java.lang.Object, java.lang.Object)
	*/
	public void inputChanged(org.eclipse.jface.viewers.Viewer viewer,
	Object oldInput, Object newInput) {
	}

	});
	createColumns();

	viewer.setLabelProvider(new OwnerDrawLabelProvider() {


	protected void measure(Event event, Object element) {
	CountryEntry country = (CountryEntry) element;

	event.setBounds(new Rectangle(event.x, event.y, country.getWidth(event),
	country.getHeight(event)));

	}

	/*
	* (non-Javadoc)
	*
	* @see org.eclipse.jface.viewers.OwnerDrawLabelProvider#paint(org.eclipse.swt.widgets.Event,
	* java.lang.Object)
	*/
	protected void paint(Event event, Object element) {
	CountryEntry entry = (CountryEntry) element;
	entry.draw(event);

	}
	});

	OwnerDrawLabelProvider.setUpOwnerDraw(viewer);
	viewer.setInput(this);
	GridData data = new GridData(GridData.GRAB_HORIZONTAL
	\| GridData.GRAB_VERTICAL \| GridData.FILL_BOTH);

	viewer.getControl().setLayoutData(data);

	viewer.setSelection(new StructuredSelection(entries[1]));
	}

	/**
	* Create the columns to be used in the tree.
	*/
	private void createColumns() {
	TableLayout layout = new TableLayout();
	viewer.getTable().setLayout(layout);
	viewer.getTable().setHeaderVisible(true);
	viewer.getTable().setLinesVisible(true);

	for (int i = 0; i < COLUMN_COUNT; i++) {
	TableColumn tc = new TableColumn(viewer.getTable(), SWT.NONE, i);
	layout.addColumnData(new ColumnPixelData(100));
	tc.setText(getTitleFor(i));
	}
	;
	}

	/**
	* @param i
	* @return
	*/
	private String getTitleFor(int i) {
	switch (i) {
	case 0:
	return "Name";
	case 1:
	return "Flag";
	case 2:
	return "World Cup Year";
	}
	return "Unknown";
	}

	public void setFocus() {

	}

	}