examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/controlexample/ControlExample.java - platform/eclipse.platform.swt - Git at Google

 /*******************************************************************************
  * Copyright (c) 2000, 2003 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Common Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/cpl-v10.html
  *
  * Contributors:
  *     IBM Corporation - initial API and implementation
  *******************************************************************************/
 package org.eclipse.swt.examples.controlexample;


 import org.eclipse.swt.*;
 import org.eclipse.swt.custom.*;
 import org.eclipse.swt.graphics.*;
 import org.eclipse.swt.layout.*;
 import org.eclipse.swt.widgets.*;

 import java.text.*;
 import java.util.*;

 public class ControlExample {
 	private static ResourceBundle resourceBundle =
 		ResourceBundle.getBundle("examples_control");
 	private ShellTab shellTab;
 	private SashForm form;
 	private TabFolder tabFolder;
 	private Text eventConsole;
 	private boolean logging = false;
 	private boolean [] eventsFilter = new boolean [35];
 	static boolean standAlone = false;
 	Image images[];

 	static final int ciClosedFolder = 0, ciOpenFolder = 1, ciTarget = 2;
 	static final String[] imageLocations = {
 		"closedFolder.gif",
 		"openFolder.gif",
 		"target.gif" };
 	static final String [] EVENT_TYPES = { "",
 		"KeyDown", "KeyUp", "MouseDown", "MouseUp", "MouseMove", "MouseEnter",
 		"MouseExit", "MouseDoubleClick", "Paint", "Move", "Resize", "Dispose",
 		"Selection", "DefaultSelection", "FocusIn", "FocusOut", "Expand", "Collapse",
 		"Iconify", "Deiconify", "Close", "Show", "Hide", "Modify",
 		"Verify", "Activate", "Deactivate", "Help", "DragDetect", "Arm",
 		"Traverse", "MouseHover", "HardKeyDown", "HardKeyUp"
 	};
 	static final int [] DEFAULT_FILTER = {
 		SWT.KeyDown, SWT.KeyUp, SWT.MouseDown, SWT.MouseUp, SWT.MouseDoubleClick, SWT.Selection,
 		SWT.DefaultSelection, SWT.Expand, SWT.Collapse, SWT.Iconify, SWT.Deiconify, SWT.Close,
 		SWT.Show, SWT.Hide, SWT.Modify, SWT.Verify, SWT.Activate, SWT.Deactivate,
 		SWT.Help, SWT.DragDetect, SWT.Arm, SWT.Traverse, SWT.HardKeyDown, SWT.HardKeyUp
 	};

 	/**
 	 * Creates an instance of a ControlExample embedded inside
 	 * the supplied parent Composite.
 	 *
 	 * @param parent the container of the example
 	 */
 	public ControlExample(Composite parent) {
 		initResources();
 		form = new SashForm (parent,SWT.VERTICAL);
 		tabFolder = new TabFolder (form, SWT.NONE);
 		Tab [] tabs = createTabs();
 		for (int i=0; i<tabs.length; i++) {
 			TabItem item = new TabItem (tabFolder, SWT.NONE);
 		    item.setText (tabs [i].getTabText ());
 		    item.setControl (tabs [i].createTabFolderPage (tabFolder));
 		    item.setData (tabs [i]);
 		}
 		if (standAlone) {
 			createControlExampleMenu (parent.getShell ());
 			eventConsole = new Text(form, SWT.MULTI | SWT.V_SCROLL);
 			form.setWeights(new int[] {100, 0});
 			createEventConsolePopup (eventConsole);
 			for (int i = 0; i < DEFAULT_FILTER.length; i++) {
 				eventsFilter [DEFAULT_FILTER [i]] = true;
 			}
 		}
 	}

 	/**
 	 * Hide the event logger.
 	 */
 	void closeEventConsole() {
 		logging = false;
 		form.setWeights(new int[] {100, 0});
 		eventConsole.setEnabled (false);
 		TabItem[] tabs = tabFolder.getItems ();
 		for (int i = 0; i < tabs.length; i++) {
 			Tab tab = (Tab) tabs[i].getData ();
 			tab.recreateExampleWidgets ();
 		}
 	}

 	/**
 	 * Create the menubar
 	 */
 	void createControlExampleMenu(final Shell shell) {
 		Menu bar = new Menu (shell, SWT.BAR);
 		MenuItem consoleItem = new MenuItem (bar, SWT.CASCADE);
 		consoleItem.setText (ControlExample.getResourceString("Menu_Controls"));
 		shell.setMenuBar (bar);
 		Menu dropDown = new Menu (bar);
 		consoleItem.setMenu (dropDown);

 		final MenuItem showEvents = new MenuItem (dropDown, SWT.CHECK);
 		showEvents.setText (ControlExample.getResourceString("MenuItem_Log"));
 		showEvents.addListener (SWT.Selection, new Listener () {
 			public void handleEvent (Event e) {
 				if (showEvents.getSelection()) {
 					openEventConsole (shell);
 				} else {
 					closeEventConsole ();
 				}
 			}
 		});

 		final MenuItem exit = new MenuItem (dropDown, SWT.NONE);
 		exit.setText (ControlExample.getResourceString("MenuItem_Exit"));
 		exit.addListener (SWT.Selection, new Listener () {
 			public void handleEvent (Event e) {
 				shell.dispose();
 			}
 		});
 	}

 	/**
 	 * Create the menubar
 	 */
 	void createEventConsolePopup (final Text console) {
 		Menu popup = new Menu (console.getShell (), SWT.POP_UP);
 		console.setMenu (popup);

 		MenuItem copy = new MenuItem (popup, SWT.PUSH);
 		copy.setAccelerator(SWT.MOD1 + 'C');
 		copy.setText (ControlExample.getResourceString("MenuItem_Copy") + "\tCtrl+C");
 		copy.addListener (SWT.Selection, new Listener () {
 			public void handleEvent (Event event) {
 				console.copy ();
 			}
 		});
 		MenuItem selectAll = new MenuItem (popup, SWT.PUSH);
 		selectAll.setAccelerator(SWT.MOD1 + 'A');
 		selectAll.setText(ControlExample.getResourceString("MenuItem_SelectAll"));
 		selectAll.addListener (SWT.Selection, new Listener () {
 			public void handleEvent (Event event) {
 				console.selectAll ();
 			}
 		});
 		MenuItem clear = new MenuItem (popup, SWT.PUSH);
 		clear.setText (ControlExample.getResourceString("MenuItem_Clear"));
 		clear.addListener (SWT.Selection, new Listener () {
 			public void handleEvent (Event event) {
 				console.setText ("");
 			}
 		});
 	}

 	/**
 	 * Answers the set of example Tabs
 	 */
 	Tab[] createTabs() {
 		return new Tab [] {
 			new ButtonTab (this),
 			new ComboTab (this),
 			new CoolBarTab (this),
 			new DialogTab (this),
 			new LabelTab (this),
 			new ListTab (this),
 			new ProgressBarTab (this),
 			new SashTab (this),
 			shellTab = new ShellTab(this),
 			new SliderTab (this),
 			new TableTab (this),
 			new TextTab (this),
 			new ToolBarTab (this),
 			new TreeTab (this),
 		};
 	}

 	/**
 	 * Disposes of all resources associated with a particular
 	 * instance of the ControlExample.
 	 */
 	public void dispose() {
 		/*
 		 * Destroy any shells that may have been created
 		 * by the Shells tab.  When a shell is disposed,
 		 * all child shells are also disposed.  Therefore
 		 * it is necessary to check for disposed shells
 		 * in the shells list to avoid disposing a shell
 		 * twice.
 		 */
 		if (shellTab != null) shellTab.closeAllShells ();
 		shellTab = null;
 		tabFolder = null;
 		freeResources();
 	}

 	/**
 	 * Frees the resources
 	 */
 	void freeResources() {
 		if (images != null) {
 			for (int i = 0; i < images.length; ++i) {
 				final Image image = images[i];
 				if (image != null) image.dispose();
 			}
 			images = null;
 		}
 	}

 	/**
 	 * Gets a string from the resource bundle.
 	 * We don't want to crash because of a missing String.
 	 * Returns the key if not found.
 	 */
 	static String getResourceString(String key) {
 		try {
 			return resourceBundle.getString(key);
 		} catch (MissingResourceException e) {
 			return key;
 		} catch (NullPointerException e) {
 			return "!" + key + "!";
 		}
 	}

 	/**
 	 * Gets a string from the resource bundle and binds it
 	 * with the given arguments. If the key is not found,
 	 * return the key.
 	 */
 	static String getResourceString(String key, Object[] args) {
 		try {
 			return MessageFormat.format(getResourceString(key), args);
 		} catch (MissingResourceException e) {
 			return key;
 		} catch (NullPointerException e) {
 			return "!" + key + "!";
 		}
 	}

 	/**
 	 * Loads the resources
 	 */
 	void initResources() {
 		final Class clazz = ControlExample.class;
 		if (resourceBundle != null) {
 			try {
 				if (images == null) {
 					images = new Image[imageLocations.length];

 					for (int i = 0; i < imageLocations.length; ++i) {
 						ImageData source = new ImageData(clazz.getResourceAsStream(
 							imageLocations[i]));
 						ImageData mask = source.getTransparencyMask();
 						images[i] = new Image(null, source, mask);
 					}
 				}
 				return;
 			} catch (Throwable t) {
 			}
 		}
 		String error = (resourceBundle != null) ?
 			getResourceString("error.CouldNotLoadResources") :
 			"Unable to load resources";
 		freeResources();
 		throw new RuntimeException(error);
 	}

 	/**
 	 * Answers true if this example is currently logging all
 	 * events, and false otherwise.
 	 */
 	public boolean isLogging () {
 		return logging;
 	}
 	/**
 	 * Logs an event to the event console.
 	 */
 	void log(Event event) {
 		if (logging && eventsFilter [event.type]) {
 			StringBuffer output = new StringBuffer (EVENT_TYPES[event.type]);
 			output.append (": ");
 			output.append (event.widget.toString ());
 			output.append (" X: ");
 			output.append (event.x);
 			output.append (" Y: ");
 			output.append (event.y);
 			output.append ("\n");
 			eventConsole.append (output.toString ());
 		}
 	}

 	/**
 	 * Invokes as a standalone program.
 	 */
 	public static void main(String[] args) {
 		standAlone = true;
 		Display display = new Display();
 		Shell shell = new Shell(display);
 		shell.setLayout(new FillLayout());
 		ControlExample instance = new ControlExample(shell);
 		shell.setText(getResourceString("window.title"));
 		shell.open();
 		while (! shell.isDisposed()) {
 			if (! display.readAndDispatch()) display.sleep();
 		}
 		instance.dispose();
 	}

 	/**
 	 * Open the event logger.
 	 */
 	void openEventConsole(Shell shell) {
 		logging = true;
 		form.setWeights(new int[] {80,20});
 		eventConsole.setEnabled (true);
 		TabItem[] tabs = tabFolder.getItems ();
 		for (int i = 0; i < tabs.length; i++) {
 			Tab tab = (Tab) tabs[i].getData ();
 			tab.recreateExampleWidgets ();
 		}
 	}

 	/**
 	 * Grabs input focus.
 	 */
 	public void setFocus() {
 		tabFolder.setFocus();
 	}
 }
	/*******************************************************************************
	* Copyright (c) 2000, 2003 IBM Corporation and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Common Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/cpl-v10.html
	*
	* Contributors:
	* IBM Corporation - initial API and implementation
	*******************************************************************************/
	package org.eclipse.swt.examples.controlexample;


	import org.eclipse.swt.*;
	import org.eclipse.swt.custom.*;
	import org.eclipse.swt.graphics.*;
	import org.eclipse.swt.layout.*;
	import org.eclipse.swt.widgets.*;

	import java.text.*;
	import java.util.*;

	public class ControlExample {
	private static ResourceBundle resourceBundle =
	ResourceBundle.getBundle("examples_control");
	private ShellTab shellTab;
	private SashForm form;
	private TabFolder tabFolder;
	private Text eventConsole;
	private boolean logging = false;
	private boolean [] eventsFilter = new boolean [35];
	static boolean standAlone = false;
	Image images[];

	static final int ciClosedFolder = 0, ciOpenFolder = 1, ciTarget = 2;
	static final String[] imageLocations = {
	"closedFolder.gif",
	"openFolder.gif",
	"target.gif" };
	static final String [] EVENT_TYPES = { "",
	"KeyDown", "KeyUp", "MouseDown", "MouseUp", "MouseMove", "MouseEnter",
	"MouseExit", "MouseDoubleClick", "Paint", "Move", "Resize", "Dispose",
	"Selection", "DefaultSelection", "FocusIn", "FocusOut", "Expand", "Collapse",
	"Iconify", "Deiconify", "Close", "Show", "Hide", "Modify",
	"Verify", "Activate", "Deactivate", "Help", "DragDetect", "Arm",
	"Traverse", "MouseHover", "HardKeyDown", "HardKeyUp"
	};
	static final int [] DEFAULT_FILTER = {
	SWT.KeyDown, SWT.KeyUp, SWT.MouseDown, SWT.MouseUp, SWT.MouseDoubleClick, SWT.Selection,
	SWT.DefaultSelection, SWT.Expand, SWT.Collapse, SWT.Iconify, SWT.Deiconify, SWT.Close,
	SWT.Show, SWT.Hide, SWT.Modify, SWT.Verify, SWT.Activate, SWT.Deactivate,
	SWT.Help, SWT.DragDetect, SWT.Arm, SWT.Traverse, SWT.HardKeyDown, SWT.HardKeyUp
	};

	/**
	* Creates an instance of a ControlExample embedded inside
	* the supplied parent Composite.
	*
	* @param parent the container of the example
	*/
	public ControlExample(Composite parent) {
	initResources();
	form = new SashForm (parent,SWT.VERTICAL);
	tabFolder = new TabFolder (form, SWT.NONE);
	Tab [] tabs = createTabs();
	for (int i=0; i<tabs.length; i++) {
	TabItem item = new TabItem (tabFolder, SWT.NONE);
	item.setText (tabs [i].getTabText ());
	item.setControl (tabs [i].createTabFolderPage (tabFolder));
	item.setData (tabs [i]);
	}
	if (standAlone) {
	createControlExampleMenu (parent.getShell ());
	eventConsole = new Text(form, SWT.MULTI \| SWT.V_SCROLL);
	form.setWeights(new int[] {100, 0});
	createEventConsolePopup (eventConsole);
	for (int i = 0; i < DEFAULT_FILTER.length; i++) {
	eventsFilter [DEFAULT_FILTER [i]] = true;
	}
	}
	}

	/**
	* Hide the event logger.
	*/
	void closeEventConsole() {
	logging = false;
	form.setWeights(new int[] {100, 0});
	eventConsole.setEnabled (false);
	TabItem[] tabs = tabFolder.getItems ();
	for (int i = 0; i < tabs.length; i++) {
	Tab tab = (Tab) tabs[i].getData ();
	tab.recreateExampleWidgets ();
	}
	}

	/**
	* Create the menubar
	*/
	void createControlExampleMenu(final Shell shell) {
	Menu bar = new Menu (shell, SWT.BAR);
	MenuItem consoleItem = new MenuItem (bar, SWT.CASCADE);
	consoleItem.setText (ControlExample.getResourceString("Menu_Controls"));
	shell.setMenuBar (bar);
	Menu dropDown = new Menu (bar);
	consoleItem.setMenu (dropDown);

	final MenuItem showEvents = new MenuItem (dropDown, SWT.CHECK);
	showEvents.setText (ControlExample.getResourceString("MenuItem_Log"));
	showEvents.addListener (SWT.Selection, new Listener () {
	public void handleEvent (Event e) {
	if (showEvents.getSelection()) {
	openEventConsole (shell);
	} else {
	closeEventConsole ();
	}
	}
	});

	final MenuItem exit = new MenuItem (dropDown, SWT.NONE);
	exit.setText (ControlExample.getResourceString("MenuItem_Exit"));
	exit.addListener (SWT.Selection, new Listener () {
	public void handleEvent (Event e) {
	shell.dispose();
	}
	});
	}

	/**
	* Create the menubar
	*/
	void createEventConsolePopup (final Text console) {
	Menu popup = new Menu (console.getShell (), SWT.POP_UP);
	console.setMenu (popup);

	MenuItem copy = new MenuItem (popup, SWT.PUSH);
	copy.setAccelerator(SWT.MOD1 + 'C');
	copy.setText (ControlExample.getResourceString("MenuItem_Copy") + "\tCtrl+C");
	copy.addListener (SWT.Selection, new Listener () {
	public void handleEvent (Event event) {
	console.copy ();
	}
	});
	MenuItem selectAll = new MenuItem (popup, SWT.PUSH);
	selectAll.setAccelerator(SWT.MOD1 + 'A');
	selectAll.setText(ControlExample.getResourceString("MenuItem_SelectAll"));
	selectAll.addListener (SWT.Selection, new Listener () {
	public void handleEvent (Event event) {
	console.selectAll ();
	}
	});
	MenuItem clear = new MenuItem (popup, SWT.PUSH);
	clear.setText (ControlExample.getResourceString("MenuItem_Clear"));
	clear.addListener (SWT.Selection, new Listener () {
	public void handleEvent (Event event) {
	console.setText ("");
	}
	});
	}

	/**
	* Answers the set of example Tabs
	*/
	Tab[] createTabs() {
	return new Tab [] {
	new ButtonTab (this),
	new ComboTab (this),
	new CoolBarTab (this),
	new DialogTab (this),
	new LabelTab (this),
	new ListTab (this),
	new ProgressBarTab (this),
	new SashTab (this),
	shellTab = new ShellTab(this),
	new SliderTab (this),
	new TableTab (this),
	new TextTab (this),
	new ToolBarTab (this),
	new TreeTab (this),
	};
	}

	/**
	* Disposes of all resources associated with a particular
	* instance of the ControlExample.
	*/
	public void dispose() {
	/*
	* Destroy any shells that may have been created
	* by the Shells tab. When a shell is disposed,
	* all child shells are also disposed. Therefore
	* it is necessary to check for disposed shells
	* in the shells list to avoid disposing a shell
	* twice.
	*/
	if (shellTab != null) shellTab.closeAllShells ();
	shellTab = null;
	tabFolder = null;
	freeResources();
	}

	/**
	* Frees the resources
	*/
	void freeResources() {
	if (images != null) {
	for (int i = 0; i < images.length; ++i) {
	final Image image = images[i];
	if (image != null) image.dispose();
	}
	images = null;
	}
	}

	/**
	* Gets a string from the resource bundle.
	* We don't want to crash because of a missing String.
	* Returns the key if not found.
	*/
	static String getResourceString(String key) {
	try {
	return resourceBundle.getString(key);
	} catch (MissingResourceException e) {
	return key;
	} catch (NullPointerException e) {
	return "!" + key + "!";
	}
	}

	/**
	* Gets a string from the resource bundle and binds it
	* with the given arguments. If the key is not found,
	* return the key.
	*/
	static String getResourceString(String key, Object[] args) {
	try {
	return MessageFormat.format(getResourceString(key), args);
	} catch (MissingResourceException e) {
	return key;
	} catch (NullPointerException e) {
	return "!" + key + "!";
	}
	}

	/**
	* Loads the resources
	*/
	void initResources() {
	final Class clazz = ControlExample.class;
	if (resourceBundle != null) {
	try {
	if (images == null) {
	images = new Image[imageLocations.length];

	for (int i = 0; i < imageLocations.length; ++i) {
	ImageData source = new ImageData(clazz.getResourceAsStream(
	imageLocations[i]));
	ImageData mask = source.getTransparencyMask();
	images[i] = new Image(null, source, mask);
	}
	}
	return;
	} catch (Throwable t) {
	}
	}
	String error = (resourceBundle != null) ?
	getResourceString("error.CouldNotLoadResources") :
	"Unable to load resources";
	freeResources();
	throw new RuntimeException(error);
	}

	/**
	* Answers true if this example is currently logging all
	* events, and false otherwise.
	*/
	public boolean isLogging () {
	return logging;
	}
	/**
	* Logs an event to the event console.
	*/
	void log(Event event) {
	if (logging && eventsFilter [event.type]) {
	StringBuffer output = new StringBuffer (EVENT_TYPES[event.type]);
	output.append (": ");
	output.append (event.widget.toString ());
	output.append (" X: ");
	output.append (event.x);
	output.append (" Y: ");
	output.append (event.y);
	output.append ("\n");
	eventConsole.append (output.toString ());
	}
	}

	/**
	* Invokes as a standalone program.
	*/
	public static void main(String[] args) {
	standAlone = true;
	Display display = new Display();
	Shell shell = new Shell(display);
	shell.setLayout(new FillLayout());
	ControlExample instance = new ControlExample(shell);
	shell.setText(getResourceString("window.title"));
	shell.open();
	while (! shell.isDisposed()) {
	if (! display.readAndDispatch()) display.sleep();
	}
	instance.dispose();
	}

	/**
	* Open the event logger.
	*/
	void openEventConsole(Shell shell) {
	logging = true;
	form.setWeights(new int[] {80,20});
	eventConsole.setEnabled (true);
	TabItem[] tabs = tabFolder.getItems ();
	for (int i = 0; i < tabs.length; i++) {
	Tab tab = (Tab) tabs[i].getData ();
	tab.recreateExampleWidgets ();
	}
	}

	/**
	* Grabs input focus.
	*/
	public void setFocus() {
	tabFolder.setFocus();
	}
	}