CLabelTab.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.custom.CLabel;
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.Widget;

class CLabelTab extends AlignableTab {
	/* Example widgets and groups that contain them */
	CLabel	label1, label2, label3;
	/* Style widgets added to the "Style" group */
	Button	shadowInButton, shadowOutButton, shadowNoneButton;

	Group	textLabelGroup;

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

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

		/* Create a group for the text labels */
		textLabelGroup = new Group(exampleGroup, SWT.NONE);
		GridLayout gridLayout = new GridLayout();
		textLabelGroup.setLayout(gridLayout);
		gridLayout.numColumns = 3;
		textLabelGroup.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
		textLabelGroup.setText(ControlExample.getResourceString("Custom_Labels"));
	}

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

		/* Compute the widget style */
		int style = getDefaultStyle();
		if (shadowInButton.getSelection())
			style |= SWT.SHADOW_IN;
		if (shadowNoneButton.getSelection())
			style |= SWT.SHADOW_NONE;
		if (shadowOutButton.getSelection())
			style |= SWT.SHADOW_OUT;
		if (leftButton.getSelection())
			style |= SWT.LEFT;
		if (centerButton.getSelection())
			style |= SWT.CENTER;
		if (rightButton.getSelection())
			style |= SWT.RIGHT;

		/* Create the example widgets */
		label1 = new CLabel(textLabelGroup, style);
		label1.setText(ControlExample.getResourceString("One"));
		label1.setImage(instance.images[ControlExample.ciClosedFolder]);
		label2 = new CLabel(textLabelGroup, style);
		label2.setImage(instance.images[ControlExample.ciTarget]);
		label3 = new CLabel(textLabelGroup, style);
		label3.setText(ControlExample.getResourceString("Example_string") + "\n"
				+ ControlExample.getResourceString("One_Two_Three"));
	}

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

		/* Create the extra widgets */
		shadowNoneButton = new Button(styleGroup, SWT.RADIO);
		shadowNoneButton.setText("SWT.SHADOW_NONE");
		shadowInButton = new Button(styleGroup, SWT.RADIO);
		shadowInButton.setText("SWT.SHADOW_IN");
		shadowOutButton = new Button(styleGroup, SWT.RADIO);
		shadowOutButton.setText("SWT.SHADOW_OUT");
	}

	/**
	 * Gets the "Example" widget children.
	 */
	Widget[] getExampleWidgets() {
		return new Widget[] { label1, label2, label3 };
	}

	/**
	 * 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[] { "Text", "ToolTipText" };
	}

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

	/**
	 * Sets the alignment of the "Example" widgets.
	 */
	void setExampleWidgetAlignment() {
		int alignment = 0;
		if (leftButton.getSelection())
			alignment = SWT.LEFT;
		if (centerButton.getSelection())
			alignment = SWT.CENTER;
		if (rightButton.getSelection())
			alignment = SWT.RIGHT;
		label1.setAlignment(alignment);
		label2.setAlignment(alignment);
		label3.setAlignment(alignment);
	}

	/**
	 * Sets the state of the "Example" widgets.
	 */
	void setExampleWidgetState() {
		super.setExampleWidgetState();
		leftButton.setSelection((label1.getStyle() & SWT.LEFT) != 0);
		centerButton.setSelection((label1.getStyle() & SWT.CENTER) != 0);
		rightButton.setSelection((label1.getStyle() & SWT.RIGHT) != 0);
		shadowInButton.setSelection((label1.getStyle() & SWT.SHADOW_IN) != 0);
		shadowOutButton.setSelection((label1.getStyle() & SWT.SHADOW_OUT) != 0);
		shadowNoneButton.setSelection((label1.getStyle() & (SWT.SHADOW_IN | SWT.SHADOW_OUT)) == 0);
	}
}