examples/org.eclipse.swt.examples/org/eclipse/swt/examples/controlexample/ProgressBarTab.java

package org.eclipse.swt.examples.controlexample;

/*
 * (c) Copyright IBM Corp. 2000, 2001.
 * All Rights Reserved
 */

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 ProgressBarTab extends RangeTab {
	/* Example widgets and groups that contain them */
	ProgressBar progressBar1;
	Group progressBarGroup;

	/* Style widgets added to the "Style" group */
	Button smoothButton;
	
	/**
	 * Creates the Tab within a given instance of ControlExample.
	 */
	ProgressBarTab(ControlExample instance) {
		super(instance);
	}

	/**
	 * Creates the "Example" group.
	 */
	void createExampleGroup() {
		super.createExampleGroup ();
		
		/* Create a group for the progress bar */
		progressBarGroup = new Group (exampleGroup, SWT.NULL);
		progressBarGroup.setLayout (new GridLayout ());
		progressBarGroup.setLayoutData (new GridData (GridData.GRAB_HORIZONTAL | GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_FILL));
		progressBarGroup.setText (ControlExample.getResourceString("ProgressBar"));
	}
	
	/**
	 * Creates the "Example" widgets.
	 */
	void createExampleWidgets () {
		
		/* Compute the widget style */
		int style = SWT.NONE;
		if (horizontalButton.getSelection ()) style |= SWT.HORIZONTAL;
		if (verticalButton.getSelection ()) style |= SWT.VERTICAL;
		if (smoothButton.getSelection ()) style |= SWT.SMOOTH;
		if (borderButton.getSelection ()) style |= SWT.BORDER;
	
		/* Create the example widgets */
		progressBar1 = new ProgressBar (progressBarGroup, style);
		progressBar1.setMaximum (100);
		progressBar1.setSelection (50);
	}
	
	/**
	 * Creates the "Style" group.
	 */
	void createStyleGroup () {
		super.createStyleGroup ();
	
		/* Create the extra widgets */
		smoothButton = new Button (styleGroup, SWT.CHECK);
		smoothButton.setText (ControlExample.getResourceString("SWT_SMOOTH"));
	}
	
	/**
	 * Gets the "Example" widget children.
	 */
	Control [] getExampleWidgets () {
		return new Control [] {progressBar1};
	}
	
	/**
	 * Gets the text for the tab folder item.
	 */
	String getTabText () {
		return ControlExample.getResourceString("ProgressBar");
	}
	
	/**
	 * Sets the state of the "Example" widgets.
	 */
	void setExampleWidgetState () {
		super.setExampleWidgetState ();
		maximumScale.setMaximum (progressBar1.getMaximum ());
		smoothButton.setSelection ((progressBar1.getStyle () & SWT.SMOOTH) != 0);
	}
	
	/**
	 * Sets the maximum of the "Example" widgets.
	 */
	void setWidgetMaximum () {
		progressBar1.setMaximum (maximumScale.getSelection ());
	}
	
	/**
	 * Sets the minimim of the "Example" widgets.
	 */
	void setWidgetMinimum () { 
		progressBar1.setMinimum (minimumScale.getSelection ());
	}
	
	/**
	 * Sets the selection of the "Example" widgets.
	 */
	void setWidgetSelection () {
		progressBar1.setSelection (selectionScale.getSelection ());
	}
}