TabFolderTab.java

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

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.Group;
import org.eclipse.swt.widgets.Item;
import org.eclipse.swt.widgets.TabFolder;
import org.eclipse.swt.widgets.TabItem;
import org.eclipse.swt.widgets.Text;
import org.eclipse.swt.widgets.Widget;

class TabFolderTab extends Tab {
	static String[]	TabItems1	= { ControlExample.getResourceString("TabItem1_0"),
			ControlExample.getResourceString("TabItem1_1"), ControlExample.getResourceString("TabItem1_2") };
	/* Example widgets and groups that contain them */
	TabFolder		tabFolder1;

	Group			tabFolderGroup;

	/* Style widgets added to the "Style" group */
	Button			topButton, bottomButton;

	/**
	 * Creates the Tab within a given instance of ControlExample.
	 */
	TabFolderTab(ControlExample instance) {
		super(instance);
	}

	/**
	 * Gets the short text for the tab folder item.
	 */
	public String getShortTabText() {
		return "TF";
	}

	/**
	 * Creates the "Example" group.
	 */
	void createExampleGroup() {
		super.createExampleGroup();

		/* Create a group for the TabFolder */
		tabFolderGroup = new Group(exampleGroup, SWT.NONE);
		tabFolderGroup.setLayout(new GridLayout());
		tabFolderGroup.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
		tabFolderGroup.setText("TabFolder");
	}

	/**
	 * Creates the "Example" widgets.
	 */
	void createExampleWidgets() {

		/* Compute the widget style */
		int style = getDefaultStyle();
		if (topButton.getSelection())
			style |= SWT.TOP;
		if (bottomButton.getSelection())
			style |= SWT.BOTTOM;
		if (borderButton.getSelection())
			style |= SWT.BORDER;

		/* Create the example widgets */
		tabFolder1 = new TabFolder(tabFolderGroup, style);
		for (int i = 0; i < TabFolderTab.TabItems1.length; i++) {
			TabItem item = new TabItem(tabFolder1, SWT.NONE);
			item.setText(TabFolderTab.TabItems1[i]);
			item
					.setToolTipText(ControlExample.getResourceString("Tooltip",
							new String[] { TabFolderTab.TabItems1[i] }));
			Text content = new Text(tabFolder1, SWT.WRAP | SWT.MULTI);
			content.setText(ControlExample.getResourceString("TabItem_content") + ": " + i);
			item.setControl(content);
		}
	}

	/**
	 * Creates the "Style" group.
	 */
	void createStyleGroup() {
		super.createStyleGroup();

		/* Create the extra widgets */
		topButton = new Button(styleGroup, SWT.RADIO);
		topButton.setText("SWT.TOP");
		topButton.setSelection(true);
		bottomButton = new Button(styleGroup, SWT.RADIO);
		bottomButton.setText("SWT.BOTTOM");
		borderButton = new Button(styleGroup, SWT.CHECK);
		borderButton.setText("SWT.BORDER");
	}

	TabItem findItem(String value, TabItem[] items) {
		for (int i = 0; i < items.length; i++) {
			TabItem item = items[i];
			if (item.getText().equals(value))
				return item;
		}
		return null;
	}

	/**
	 * Gets the "Example" widget children's items, if any.
	 * 
	 * @return an array containing the example widget children's items
	 */
	Item[] getExampleWidgetItems() {
		return tabFolder1.getItems();
	}

	/**
	 * Gets the "Example" widget children.
	 */
	Widget[] getExampleWidgets() {
		return new Widget[] { tabFolder1 };
	}

	/**
	 * Returns a list of set/get API method names (without the set/get prefix) that can be used to set/get values in the
	 * example control(s).
	 */
	String[] getMethodNames() {
		return new String[] { "Selection", "SelectionIndex" };
	}

	/**
	 * Gets the text for the tab folder item.
	 */
	String getTabText() {
		return "TabFolder";
	}

	Object[] parameterForType(String typeName, String value, Widget widget) {
		if (value.equals(""))
			return new Object[] { new TabItem[0] };
		if (typeName.equals("org.eclipse.swt.widgets.TabItem")) {
			TabItem item = findItem(value, ((TabFolder) widget).getItems());
			if (item != null)
				return new Object[] { item };
		}
		if (typeName.equals("[Lorg.eclipse.swt.widgets.TabItem;")) {
			String[] values = split(value, ',');
			TabItem[] items = new TabItem[values.length];
			for (int i = 0; i < values.length; i++)
				items[i] = findItem(values[i], ((TabFolder) widget).getItems());
			return new Object[] { items };
		}
		return super.parameterForType(typeName, value, widget);
	}

	/**
	 * Sets the state of the "Example" widgets.
	 */
	void setExampleWidgetState() {
		super.setExampleWidgetState();
		topButton.setSelection((tabFolder1.getStyle() & SWT.TOP) != 0);
		bottomButton.setSelection((tabFolder1.getStyle() & SWT.BOTTOM) != 0);
		borderButton.setSelection((tabFolder1.getStyle() & SWT.BORDER) != 0);
	}

	String setMethodName(String methodRoot) {
		/* Override to handle special case of int getSelectionIndex()/setSelection(int) */
		return methodRoot.equals("SelectionIndex") ? "setSelection" : "set" + methodRoot;
	}
}