coolbartab.java

一个简单的UNCODE 码生成程序

/*******************************************************************************
 * Copyright (c) 2000, 2004 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.swt.examples.controlexample;

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

class CoolBarTab extends Tab {
	/* Example widgets and group that contains them */
	CoolBar coolBar;
	CoolItem pushItem, dropDownItem, radioItem, checkItem, textItem;
	Group coolBarGroup;
	
	/* Style widgets added to the "Style" group */
	Button dropDownButton, flatButton;

	/* Other widgets added to the "Other" group */
	Button lockedButton;
	
	Point[] sizes;
	int[] wrapIndices;
	int[] order;
	
	/**
	 * Creates the Tab within a given instance of ControlExample.
	 */
	CoolBarTab(ControlExample instance) {
		super(instance);
	}
	
	/**
	 * Creates the "Other" group.
	 */
	void createOtherGroup () {
		super.createOtherGroup ();
	
		/* Create display controls specific to this example */
		lockedButton = new Button (otherGroup, SWT.CHECK);
		lockedButton.setText (ControlExample.getResourceString("Locked"));
	
		/* Add the listeners */
		lockedButton.addSelectionListener (new SelectionAdapter () {
			public void widgetSelected (SelectionEvent event) {
				setWidgetLocked ();
			}
		});
	}
	
	/**
	 * Creates the "Example" group.
	 */
	void createExampleGroup () {
		super.createExampleGroup ();
		coolBarGroup = new Group (exampleGroup, SWT.NONE);
		coolBarGroup.setLayout (new GridLayout ());
		coolBarGroup.setLayoutData (new GridData (GridData.GRAB_HORIZONTAL | GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL));
		coolBarGroup.setText ("CoolBar");
	}
	
	/**
	 * Creates the "Example" widgets.
	 */
	void createExampleWidgets () {
		int style = getDefaultStyle(), itemStyle = 0;

		/* Compute the widget style */
		int toolBarStyle = SWT.FLAT;
		if (borderButton.getSelection()) style |= SWT.BORDER;
		if (flatButton.getSelection()) style |= SWT.FLAT;
		if (dropDownButton.getSelection()) itemStyle |= SWT.DROP_DOWN;
	
		/*
		* Create the example widgets.
		*/
		coolBar = new CoolBar (coolBarGroup, style);
		
		/* create the push button toolbar */
		ToolBar toolBar = new ToolBar (coolBar, toolBarStyle);
		ToolItem item = new ToolItem (toolBar, SWT.PUSH);
		item.setImage (instance.images[ControlExample.ciClosedFolder]);
		item.setToolTipText ("SWT.PUSH");
		item = new ToolItem (toolBar, SWT.PUSH);
		item.setImage (instance.images[ControlExample.ciOpenFolder]);
		item.setToolTipText ("SWT.PUSH");
		item = new ToolItem (toolBar, SWT.PUSH);
		item.setImage (instance.images[ControlExample.ciTarget]);
		item.setToolTipText ("SWT.PUSH");
		item = new ToolItem (toolBar, SWT.SEPARATOR);
		item = new ToolItem (toolBar, SWT.PUSH);
		item.setImage (instance.images[ControlExample.ciClosedFolder]);
		item.setToolTipText ("SWT.PUSH");
		item = new ToolItem (toolBar, SWT.PUSH);
		item.setImage (instance.images[ControlExample.ciOpenFolder]);
		item.setToolTipText ("SWT.PUSH");		
		pushItem = new CoolItem (coolBar, itemStyle);
		pushItem.setControl (toolBar);
		Point pushSize = toolBar.computeSize(SWT.DEFAULT, SWT.DEFAULT);
		pushSize = pushItem.computeSize(pushSize.x, pushSize.y);
		pushItem.setSize(pushSize);
		pushItem.setMinimumSize(item.getWidth(), pushSize.y);
        pushItem.addSelectionListener (new CoolItemSelectionListener());
				
		/* create the dropdown toolbar */
		toolBar = new ToolBar (coolBar, toolBarStyle);
		item = new ToolItem (toolBar, SWT.DROP_DOWN);
		item.setImage (instance.images[ControlExample.ciOpenFolder]);
		item.setToolTipText ("SWT.DROP_DOWN");
		item.addSelectionListener (new DropDownSelectionListener());
		item = new ToolItem (toolBar, SWT.DROP_DOWN);
		item.setImage (instance.images[ControlExample.ciClosedFolder]);
		item.setToolTipText ("SWT.DROP_DOWN");
		item.addSelectionListener (new DropDownSelectionListener());
		dropDownItem = new CoolItem (coolBar, itemStyle);
		dropDownItem.setControl (toolBar);
		Point dropSize = toolBar.computeSize(SWT.DEFAULT, SWT.DEFAULT);
		dropSize = dropDownItem.computeSize(dropSize.x, dropSize.y);
		dropDownItem.setSize(dropSize);
		dropDownItem.setMinimumSize(item.getWidth(), dropSize.y);
        dropDownItem.addSelectionListener (new CoolItemSelectionListener());
				
		/* create the radio button toolbar */
		toolBar = new ToolBar (coolBar, toolBarStyle);
		item = new ToolItem (toolBar, SWT.RADIO);
		item.setImage (instance.images[ControlExample.ciClosedFolder]);
		item.setToolTipText ("SWT.RADIO");
		item = new ToolItem (toolBar, SWT.RADIO);
		item.setImage (instance.images[ControlExample.ciClosedFolder]);
		item.setToolTipText ("SWT.RADIO");
		item = new ToolItem (toolBar, SWT.RADIO);
		item.setImage (instance.images[ControlExample.ciClosedFolder]);
		item.setToolTipText ("SWT.RADIO");
		radioItem = new CoolItem (coolBar, itemStyle);
		radioItem.setControl (toolBar);
		Point radioSize = toolBar.computeSize(SWT.DEFAULT, SWT.DEFAULT);
		radioSize = radioItem.computeSize(radioSize.x, radioSize.y);
		radioItem.setSize(radioSize);
		radioItem.setMinimumSize(item.getWidth(), radioSize.y);
        radioItem.addSelectionListener (new CoolItemSelectionListener());
		
		/* create the check button toolbar */
		toolBar = new ToolBar (coolBar, toolBarStyle);
		item = new ToolItem (toolBar, SWT.CHECK);
		item.setImage (instance.images[ControlExample.ciClosedFolder]);
		item.setToolTipText ("SWT.CHECK");
		item = new ToolItem (toolBar, SWT.CHECK);
		item.setImage (instance.images[ControlExample.ciTarget]);
		item.setToolTipText ("SWT.CHECK");
		item = new ToolItem (toolBar, SWT.CHECK);
		item.setImage (instance.images[ControlExample.ciOpenFolder]);
		item.setToolTipText ("SWT.CHECK");
		item = new ToolItem (toolBar, SWT.CHECK);
		item.setImage (instance.images[ControlExample.ciTarget]);
		item.setToolTipText ("SWT.CHECK");
		checkItem = new CoolItem (coolBar, itemStyle);
		checkItem.setControl (toolBar);
		Point checkSize = toolBar.computeSize(SWT.DEFAULT, SWT.DEFAULT);
		checkSize = checkItem.computeSize(checkSize.x, checkSize.y);
		checkItem.setSize(checkSize);
		checkItem.setMinimumSize(item.getWidth(), checkSize.y);
        checkItem.addSelectionListener (new CoolItemSelectionListener());
		
        /* create the text */
		Text text = new Text (coolBar, SWT.BORDER | SWT.SINGLE);
		textItem = new CoolItem (coolBar, itemStyle);
		textItem.setControl (text);
		Point textSize = text.computeSize(SWT.DEFAULT, SWT.DEFAULT);
		textSize = textItem.computeSize(textSize.x, textSize.y);
		textItem.setSize(textSize);
		textItem.setMinimumSize(textSize);
        textItem.addSelectionListener (new CoolItemSelectionListener());

		/* if we have saved state, restore it */
		if (order != null) {
			coolBar.setItemLayout(order, wrapIndices, sizes);
			/* 
			 * special case: because setItemLayout will restore the items
			 * to the sizes the user left them at, the preferred size may not
			 * be the same as the actual size. Thus we must explicitly set
			 * the preferred sizes.
			 */
			pushItem.setPreferredSize(pushSize);
			dropDownItem.setPreferredSize(dropSize);
			radioItem.setPreferredSize(radioSize);
			checkItem.setPreferredSize(checkSize);
			textItem.setPreferredSize(textSize);
		}
		else {
			coolBar.setWrapIndices(new int[] {1, 3});
		}
		
		/* add a listener to resize the group box to match the coolbar */
		coolBar.addListener(SWT.Resize, new Listener() {
			public void handleEvent(Event event) {
				exampleGroup.layout();
			}
		});
	}
	
	/**
	 * Creates the "Style" group.
	 */
	void createStyleGroup() {
		super.createStyleGroup();
	
		/* Create the extra widget */
		borderButton = new Button (styleGroup, SWT.CHECK);
		borderButton.setText ("SWT.BORDER");
		flatButton = new Button (styleGroup, SWT.CHECK);
		flatButton.setText ("SWT.FLAT");
		Group itemGroup = new Group(styleGroup, SWT.NONE);
		itemGroup.setLayout (new GridLayout ());
		itemGroup.setLayoutData (new GridData (GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL));
		itemGroup.setText(ControlExample.getResourceString("Item_Styles"));
		dropDownButton = new Button (itemGroup, SWT.CHECK);
		dropDownButton.setText ("SWT.DROP_DOWN");
		dropDownButton.addSelectionListener (new SelectionAdapter () {
			public void widgetSelected (SelectionEvent event) {
				recreateExampleWidgets ();
			}
		});
	}