examples/org.eclipse.swt.examples/src/org/eclipse/swt/examples/layoutexample/RowLayoutTab.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 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.layoutexample;


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

 class RowLayoutTab extends Tab {
 	/* Controls for setting layout parameters */
 	Button horizontal, vertical;
 	Button wrap, pack, justify;
 	Combo marginRight, marginLeft, marginTop, marginBottom, spacing;
 	/* The example layout instance */
 	RowLayout rowLayout;
 	/* TableEditors and related controls*/
 	TableEditor comboEditor, widthEditor, heightEditor;
 	CCombo combo;
 	Text widthText, heightText;

 	/* Constants */
 	final int COMBO_COL = 1;
 	final int WIDTH_COL = 2;
 	final int HEIGHT_COL = 3;

 	final int TOTAL_COLS = 4;

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

 	/**
 	 * Creates the widgets in the "child" group.
 	 */
 	void createChildWidgets () {
 		/* Add common controls */
 		super.createChildWidgets ();

 		/* Add TableEditors */
 		comboEditor = new TableEditor (table);
 		widthEditor = new TableEditor (table);
 		heightEditor = new TableEditor (table);
 		table.addMouseListener (new MouseAdapter () {
 			public void mouseDown(MouseEvent e) {
 				resetEditors();
 				index = table.getSelectionIndex ();
 				Point pt = new Point (e.x, e.y);
                 newItem = table.getItem (pt);
                 if (newItem == null) return;
                 TableItem oldItem = comboEditor.getItem ();
                 if (newItem == oldItem || newItem != lastSelected) {
 					lastSelected = newItem;
 					return;
 				}
 				table.showSelection ();

 				combo = new CCombo (table, SWT.READ_ONLY);
 				createComboEditor (combo, comboEditor);

 				widthText = new Text (table, SWT.SINGLE);
 				widthText.setText (((String [])data.elementAt (index)) [WIDTH_COL]);
 				createTextEditor (widthText, widthEditor, WIDTH_COL);

 				heightText = new Text (table, SWT.SINGLE);
 				heightText.setText (((String [])data.elementAt (index)) [HEIGHT_COL]);
 				createTextEditor (heightText, heightEditor, HEIGHT_COL);

                 for (int i=0; i<table.getColumnCount (); i++) {
                 	Rectangle rect = newItem.getBounds (i);
                     if (rect.contains (pt)) {
                     	switch (i) {
 							case COMBO_COL :
 								combo.setFocus ();
 								break;
 							case WIDTH_COL :
 								widthText.setFocus ();
 								break;
 							case HEIGHT_COL :
 								heightText.setFocus ();
 								break;
 							default :
 								resetEditors ();
 								break;
 						}
                     }
                 }
 			}
 		});

 		/* Add listener to add an element to the table */
 		add.addSelectionListener(new SelectionAdapter () {
 			public void widgetSelected(SelectionEvent e) {
 				TableItem item = new TableItem (table, 0);
 				String [] insert = new String [] {
 					String.valueOf (table.indexOf (item)),
 					"Button", "-1", "-1"};
 				item.setText (insert);
 				data.addElement (insert);
 				resetEditors ();
 			}
 		});
 	}

 	/**
 	 * Creates the control widgets.
 	 */
 	void createControlWidgets () {
 		/* Controls the type of RowLayout */
 		Group typeGroup = new Group (controlGroup, SWT.NONE);
 		typeGroup.setText (LayoutExample.getResourceString ("Type"));
 		typeGroup.setLayout (new GridLayout ());
 		GridData data = new GridData (GridData.FILL_HORIZONTAL);
 		typeGroup.setLayoutData (data);
 		horizontal = new Button (typeGroup, SWT.RADIO);
 		horizontal.setText ("SWT.HORIZONTAL");
 		horizontal.setLayoutData (new GridData (GridData.FILL_HORIZONTAL));
 		horizontal.setSelection(true);
 		horizontal.addSelectionListener (selectionListener);
 		vertical = new Button (typeGroup, SWT.RADIO);
 		vertical.setText ("SWT.VERTICAL");
 		vertical.setLayoutData (new GridData (GridData.FILL_HORIZONTAL));
 		vertical.addSelectionListener (selectionListener);

 		/* Controls the margins and spacing of the RowLayout */
 		String [] marginValues = new String [] {"0","3","5","10"};
 		Group marginGroup = new Group (controlGroup, SWT.NONE);
 		marginGroup.setText (LayoutExample.getResourceString ("Margins_Spacing"));
 		data = new GridData (GridData.FILL_HORIZONTAL | GridData.VERTICAL_ALIGN_BEGINNING);
 		data.verticalSpan = 2;
 		marginGroup.setLayoutData (data);
 		GridLayout layout = new GridLayout ();
 		layout.numColumns = 2;
 		marginGroup.setLayout (layout);
 		new Label (marginGroup, SWT.NONE).setText ("marginRight");
 		marginRight = new Combo (marginGroup, SWT.NONE);
 		marginRight.setItems (marginValues);
 		marginRight.select (1);
 		marginRight.setLayoutData (new GridData(GridData.FILL_HORIZONTAL));
 		marginRight.addSelectionListener (selectionListener);
 		marginRight.addTraverseListener (traverseListener);
 		new Label (marginGroup, SWT.NONE).setText ("marginLeft");
 		marginLeft = new Combo (marginGroup, SWT.NONE);
 		marginLeft.setItems (marginValues);
 		marginLeft.select (1);
 		marginLeft.setLayoutData (new GridData(GridData.FILL_HORIZONTAL));
 		marginLeft.addSelectionListener (selectionListener);
 		marginLeft.addTraverseListener(traverseListener);
 		new Label (marginGroup, SWT.NONE).setText ("marginTop");
 		marginTop = new Combo (marginGroup, SWT.NONE);
 		marginTop.setItems (marginValues);
 		marginTop.select (1);
 		marginTop.setLayoutData (new GridData(GridData.FILL_HORIZONTAL));
 		marginTop.addSelectionListener (selectionListener);
 		marginTop.addTraverseListener(traverseListener);
 		new Label (marginGroup, SWT.NONE).setText ("marginBottom");
 		marginBottom = new Combo (marginGroup, SWT.NONE);
 		marginBottom.setItems (marginValues);
 		marginBottom.select (1);
 		marginBottom.setLayoutData (new GridData(GridData.FILL_HORIZONTAL));
 		marginBottom.addSelectionListener (selectionListener);
 		marginBottom.addTraverseListener(traverseListener);
 		new Label (marginGroup, SWT.NONE).setText ("spacing");
 		spacing = new Combo (marginGroup, SWT.NONE);
 		spacing.setItems (marginValues);
 		spacing.select (1);
 		spacing.setLayoutData (new GridData(GridData.FILL_HORIZONTAL));
 		spacing.addSelectionListener (selectionListener);
 		spacing.addTraverseListener(traverseListener);

 		/* Controls other parameters of the RowLayout */
 		Group specGroup = new Group (controlGroup, SWT.NONE);
 		specGroup.setText (LayoutExample.getResourceString ("Properties"));
 		specGroup.setLayoutData (new GridData (GridData.FILL_HORIZONTAL));
 		specGroup.setLayout (new GridLayout ());
 		wrap = new Button (specGroup, SWT.CHECK);
 		wrap.setText ("wrap");
 		wrap.setSelection (true);
 		wrap.setLayoutData (new GridData (GridData.FILL_HORIZONTAL));
 		wrap.addSelectionListener (selectionListener);
 		pack = new Button (specGroup, SWT.CHECK);
 		pack.setText ("pack");
 		pack.setLayoutData (new GridData (GridData.FILL_HORIZONTAL));
 		pack.setSelection (true);
 		pack.addSelectionListener (selectionListener);
 		justify = new Button (specGroup, SWT.CHECK);
 		justify.setText ("justify");
 		justify.setLayoutData (new GridData (GridData.FILL_HORIZONTAL));
 		justify.addSelectionListener (selectionListener);

 		/* Add common controls */
 		super.createControlWidgets ();

 		/* Position the sash */
 		sash.setWeights (new int [] {6,5});
 	}

 	/**
 	 * Creates the example layout.
 	 */
 	void createLayout () {
 		rowLayout = new RowLayout ();
 		layoutComposite.setLayout (rowLayout);
 	}

 	/**
 	 * Disposes the editors without placing their contents
 	 * into the table.
 	 */
 	void disposeEditors () {
 		comboEditor.setEditor (null, null, -1);
 		combo.dispose ();
 		widthText.dispose ();
 		heightText.dispose ();
 	}

 	/**
 	 * Generates code for the example layout.
 	 */
 	StringBuffer generateLayoutCode () {
 		StringBuffer code = new StringBuffer ();
 		code.append ("\t\tRowLayout rowLayout = new RowLayout ();\n");
 		if (rowLayout.type == SWT.VERTICAL) {
 			code.append ("\t\trowLayout.type = SWT.VERTICAL;\n");
 		}
 		if (rowLayout.wrap == false) {
 			code.append ("\t\trowLayout.wrap = false;\n");
 		}
 		if (rowLayout.pack == false) {
 			code.append ("\t\trowLayout.pack = false;\n");
 		}
 		if (rowLayout.justify == true) {
 			code.append ("\t\trowLayout.justify = true;\n");
 		}
 		if (rowLayout.marginLeft != 3) {
 			code.append ("\t\trowLayout.marginLeft = " + rowLayout.marginLeft + ";\n");
 		}
 		if (rowLayout.marginRight != 3) {
 			code.append ("\t\trowLayout.marginRight = " + rowLayout.marginRight + ";\n");
 		}
 		if (rowLayout.marginTop != 3) {
 			code.append ("\t\trowLayout.marginTop = " + rowLayout.marginTop + ";\n");
 		}
 		if (rowLayout.marginBottom != 3) {
 			code.append ("\t\trowLayout.marginBottom = " + rowLayout.marginBottom + ";\n");
 		}
 		if (rowLayout.spacing != 3) {
 			code.append ("\t\trowLayout.spacing = " + rowLayout.spacing + ";\n");
 		}
 		code.append ("\t\tshell.setLayout (rowLayout);\n");

 		boolean first = true;
 		for (int i = 0; i < children.length; i++) {
 			Control control = children [i];
 			code.append (getChildCode (control,i));
 			RowData data = (RowData) control.getLayoutData ();
 			if (data != null) {
 				if (data.width != -1 || data.height != -1) {
 					code.append ("\t\t");
 					if (first) {
 						code.append ("RowData ");
 						first = false;
 					}
 					if (data.width == -1) {
 						code.append ("data = new RowData (SWT.DEFAULT, " + data.height + ");\n");
 					} else if (data.height == -1) {
 						code.append ("data = new RowData (" + data.width + ", SWT.DEFAULT);\n");
 					} else {
 						code.append ("data = new RowData (" + data.width + ", " + data.height + ");\n");
 					}
 					code.append ("\t\t" + names [i] + ".setLayoutData (data);\n");
 				}
 			}
 		}
 		return code;
 	}

 	/**
 	 * Returns the layout data field names.
 	 */
 	String [] getLayoutDataFieldNames() {
 		return new String [] {
 			"",
 			"Control",
 			"width",
 			"height"
 		};
 	}

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

 	/**
 	 * Takes information from TableEditors and stores it.
 	 */
 	void resetEditors () {
 		resetEditors (false);
 	}

 	void resetEditors (boolean tab) {
 		TableItem oldItem = comboEditor.getItem ();
 		if (oldItem != null) {
 			int row = table.indexOf (oldItem);
 			/* Make sure user has entered valid data */
 			try {
 				new Integer (widthText.getText ()).intValue ();
 			} catch (NumberFormatException e) {
 				widthText.setText (oldItem.getText (WIDTH_COL));
 			}
 			try {
 				new Integer (heightText.getText ()).intValue ();
 			} catch (NumberFormatException e) {
 				heightText.setText (oldItem.getText (HEIGHT_COL));
 			}
 			String [] insert = new String [] {
 				String.valueOf (row), combo.getText (), widthText.getText (), heightText.getText ()};
 			data.setElementAt (insert, row);
 			for (int i = 0 ; i < TOTAL_COLS; i++) {
 				oldItem.setText (i, ((String [])data.elementAt (row)) [i]);
 			}
 			if (!tab) disposeEditors ();
 		}
 		setLayoutState ();
 		refreshLayoutComposite ();
 		setLayoutData ();
 		layoutComposite.layout (true);
 		layoutGroup.layout (true);
 	}

 	/**
 	 * Sets the layout data for the children of the layout.
 	 */
 	void setLayoutData () {
 		Control [] children = layoutComposite.getChildren ();
 		TableItem [] items = table.getItems ();
 		RowData data;
 		int width, height;
 		for (int i = 0; i < children.length; i++) {
 			width = new Integer (items [i].getText (WIDTH_COL)).intValue ();
 			height = new Integer (items [i].getText (HEIGHT_COL)).intValue ();
 			data = new RowData (width, height);
 			children [i].setLayoutData (data);
 		}

 	}

 	/**
 	 * Sets the state of the layout.
 	 */
 	void setLayoutState () {
 		/* Set the type of layout */
 		if (vertical.getSelection ()) {
 			rowLayout.type = SWT.VERTICAL;
 		} else {
 			rowLayout.type = SWT.HORIZONTAL;
 		}

 		/* Set the margins and spacing */
 		try {
 			rowLayout.marginRight = new Integer (marginRight.getText ()).intValue ();
 		} catch (NumberFormatException e) {
 			rowLayout.marginRight = 3;
 			marginRight.select (1);
 		}
 		try {
 			rowLayout.marginLeft = new Integer (marginLeft.getText ()).intValue ();
 		} catch (NumberFormatException e) {
 			rowLayout.marginLeft = 3;
 			marginLeft.select (1);
 		}
 		try {
 			rowLayout.marginTop = new Integer (marginTop.getText ()).intValue ();
 		} catch (NumberFormatException e) {
 			rowLayout.marginTop = 3;
 			marginTop.select (1);
 		}
 		try {
 			rowLayout.marginBottom = new Integer (marginBottom.getText ()).intValue ();
 		} catch (NumberFormatException e) {
 			rowLayout.marginBottom = 3;
 			marginBottom.select (1);
 		}
 		try {
 			rowLayout.spacing = new Integer (spacing.getText ()).intValue ();
 		} catch (NumberFormatException e) {
 			rowLayout.spacing = 3;
 			spacing.select (1);
 		}

 		/* Set the other layout properties */
 		rowLayout.wrap = wrap.getSelection ();
 		rowLayout.pack = pack.getSelection ();
 		rowLayout.justify = justify.getSelection ();
 	}
 }
	/*******************************************************************************
	* 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 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.layoutexample;


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

	class RowLayoutTab extends Tab {
	/* Controls for setting layout parameters */
	Button horizontal, vertical;
	Button wrap, pack, justify;
	Combo marginRight, marginLeft, marginTop, marginBottom, spacing;
	/* The example layout instance */
	RowLayout rowLayout;
	/* TableEditors and related controls*/
	TableEditor comboEditor, widthEditor, heightEditor;
	CCombo combo;
	Text widthText, heightText;

	/* Constants */
	final int COMBO_COL = 1;
	final int WIDTH_COL = 2;
	final int HEIGHT_COL = 3;

	final int TOTAL_COLS = 4;

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

	/**
	* Creates the widgets in the "child" group.
	*/
	void createChildWidgets () {
	/* Add common controls */
	super.createChildWidgets ();

	/* Add TableEditors */
	comboEditor = new TableEditor (table);
	widthEditor = new TableEditor (table);
	heightEditor = new TableEditor (table);
	table.addMouseListener (new MouseAdapter () {
	public void mouseDown(MouseEvent e) {
	resetEditors();
	index = table.getSelectionIndex ();
	Point pt = new Point (e.x, e.y);
	newItem = table.getItem (pt);
	if (newItem == null) return;
	TableItem oldItem = comboEditor.getItem ();
	if (newItem == oldItem \|\| newItem != lastSelected) {
	lastSelected = newItem;
	return;
	}
	table.showSelection ();

	combo = new CCombo (table, SWT.READ_ONLY);
	createComboEditor (combo, comboEditor);

	widthText = new Text (table, SWT.SINGLE);
	widthText.setText (((String [])data.elementAt (index)) [WIDTH_COL]);
	createTextEditor (widthText, widthEditor, WIDTH_COL);

	heightText = new Text (table, SWT.SINGLE);
	heightText.setText (((String [])data.elementAt (index)) [HEIGHT_COL]);
	createTextEditor (heightText, heightEditor, HEIGHT_COL);

	for (int i=0; i<table.getColumnCount (); i++) {
	Rectangle rect = newItem.getBounds (i);
	if (rect.contains (pt)) {
	switch (i) {
	case COMBO_COL :
	combo.setFocus ();
	break;
	case WIDTH_COL :
	widthText.setFocus ();
	break;
	case HEIGHT_COL :
	heightText.setFocus ();
	break;
	default :
	resetEditors ();
	break;
	}
	}
	}
	}
	});

	/* Add listener to add an element to the table */
	add.addSelectionListener(new SelectionAdapter () {
	public void widgetSelected(SelectionEvent e) {
	TableItem item = new TableItem (table, 0);
	String [] insert = new String [] {
	String.valueOf (table.indexOf (item)),
	"Button", "-1", "-1"};
	item.setText (insert);
	data.addElement (insert);
	resetEditors ();
	}
	});
	}

	/**
	* Creates the control widgets.
	*/
	void createControlWidgets () {
	/* Controls the type of RowLayout */
	Group typeGroup = new Group (controlGroup, SWT.NONE);
	typeGroup.setText (LayoutExample.getResourceString ("Type"));
	typeGroup.setLayout (new GridLayout ());
	GridData data = new GridData (GridData.FILL_HORIZONTAL);
	typeGroup.setLayoutData (data);
	horizontal = new Button (typeGroup, SWT.RADIO);
	horizontal.setText ("SWT.HORIZONTAL");
	horizontal.setLayoutData (new GridData (GridData.FILL_HORIZONTAL));
	horizontal.setSelection(true);
	horizontal.addSelectionListener (selectionListener);
	vertical = new Button (typeGroup, SWT.RADIO);
	vertical.setText ("SWT.VERTICAL");
	vertical.setLayoutData (new GridData (GridData.FILL_HORIZONTAL));
	vertical.addSelectionListener (selectionListener);

	/* Controls the margins and spacing of the RowLayout */
	String [] marginValues = new String [] {"0","3","5","10"};
	Group marginGroup = new Group (controlGroup, SWT.NONE);
	marginGroup.setText (LayoutExample.getResourceString ("Margins_Spacing"));
	data = new GridData (GridData.FILL_HORIZONTAL \| GridData.VERTICAL_ALIGN_BEGINNING);
	data.verticalSpan = 2;
	marginGroup.setLayoutData (data);
	GridLayout layout = new GridLayout ();
	layout.numColumns = 2;
	marginGroup.setLayout (layout);
	new Label (marginGroup, SWT.NONE).setText ("marginRight");
	marginRight = new Combo (marginGroup, SWT.NONE);
	marginRight.setItems (marginValues);
	marginRight.select (1);
	marginRight.setLayoutData (new GridData(GridData.FILL_HORIZONTAL));
	marginRight.addSelectionListener (selectionListener);
	marginRight.addTraverseListener (traverseListener);
	new Label (marginGroup, SWT.NONE).setText ("marginLeft");
	marginLeft = new Combo (marginGroup, SWT.NONE);
	marginLeft.setItems (marginValues);
	marginLeft.select (1);
	marginLeft.setLayoutData (new GridData(GridData.FILL_HORIZONTAL));
	marginLeft.addSelectionListener (selectionListener);
	marginLeft.addTraverseListener(traverseListener);
	new Label (marginGroup, SWT.NONE).setText ("marginTop");
	marginTop = new Combo (marginGroup, SWT.NONE);
	marginTop.setItems (marginValues);
	marginTop.select (1);
	marginTop.setLayoutData (new GridData(GridData.FILL_HORIZONTAL));
	marginTop.addSelectionListener (selectionListener);
	marginTop.addTraverseListener(traverseListener);
	new Label (marginGroup, SWT.NONE).setText ("marginBottom");
	marginBottom = new Combo (marginGroup, SWT.NONE);
	marginBottom.setItems (marginValues);
	marginBottom.select (1);
	marginBottom.setLayoutData (new GridData(GridData.FILL_HORIZONTAL));
	marginBottom.addSelectionListener (selectionListener);
	marginBottom.addTraverseListener(traverseListener);
	new Label (marginGroup, SWT.NONE).setText ("spacing");
	spacing = new Combo (marginGroup, SWT.NONE);
	spacing.setItems (marginValues);
	spacing.select (1);
	spacing.setLayoutData (new GridData(GridData.FILL_HORIZONTAL));
	spacing.addSelectionListener (selectionListener);
	spacing.addTraverseListener(traverseListener);

	/* Controls other parameters of the RowLayout */
	Group specGroup = new Group (controlGroup, SWT.NONE);
	specGroup.setText (LayoutExample.getResourceString ("Properties"));
	specGroup.setLayoutData (new GridData (GridData.FILL_HORIZONTAL));
	specGroup.setLayout (new GridLayout ());
	wrap = new Button (specGroup, SWT.CHECK);
	wrap.setText ("wrap");
	wrap.setSelection (true);
	wrap.setLayoutData (new GridData (GridData.FILL_HORIZONTAL));
	wrap.addSelectionListener (selectionListener);
	pack = new Button (specGroup, SWT.CHECK);
	pack.setText ("pack");
	pack.setLayoutData (new GridData (GridData.FILL_HORIZONTAL));
	pack.setSelection (true);
	pack.addSelectionListener (selectionListener);
	justify = new Button (specGroup, SWT.CHECK);
	justify.setText ("justify");
	justify.setLayoutData (new GridData (GridData.FILL_HORIZONTAL));
	justify.addSelectionListener (selectionListener);

	/* Add common controls */
	super.createControlWidgets ();

	/* Position the sash */
	sash.setWeights (new int [] {6,5});
	}

	/**
	* Creates the example layout.
	*/
	void createLayout () {
	rowLayout = new RowLayout ();
	layoutComposite.setLayout (rowLayout);
	}

	/**
	* Disposes the editors without placing their contents
	* into the table.
	*/
	void disposeEditors () {
	comboEditor.setEditor (null, null, -1);
	combo.dispose ();
	widthText.dispose ();
	heightText.dispose ();
	}

	/**
	* Generates code for the example layout.
	*/
	StringBuffer generateLayoutCode () {
	StringBuffer code = new StringBuffer ();
	code.append ("\t\tRowLayout rowLayout = new RowLayout ();\n");
	if (rowLayout.type == SWT.VERTICAL) {
	code.append ("\t\trowLayout.type = SWT.VERTICAL;\n");
	}
	if (rowLayout.wrap == false) {
	code.append ("\t\trowLayout.wrap = false;\n");
	}
	if (rowLayout.pack == false) {
	code.append ("\t\trowLayout.pack = false;\n");
	}
	if (rowLayout.justify == true) {
	code.append ("\t\trowLayout.justify = true;\n");
	}
	if (rowLayout.marginLeft != 3) {
	code.append ("\t\trowLayout.marginLeft = " + rowLayout.marginLeft + ";\n");
	}
	if (rowLayout.marginRight != 3) {
	code.append ("\t\trowLayout.marginRight = " + rowLayout.marginRight + ";\n");
	}
	if (rowLayout.marginTop != 3) {
	code.append ("\t\trowLayout.marginTop = " + rowLayout.marginTop + ";\n");
	}
	if (rowLayout.marginBottom != 3) {
	code.append ("\t\trowLayout.marginBottom = " + rowLayout.marginBottom + ";\n");
	}
	if (rowLayout.spacing != 3) {
	code.append ("\t\trowLayout.spacing = " + rowLayout.spacing + ";\n");
	}
	code.append ("\t\tshell.setLayout (rowLayout);\n");

	boolean first = true;
	for (int i = 0; i < children.length; i++) {
	Control control = children [i];
	code.append (getChildCode (control,i));
	RowData data = (RowData) control.getLayoutData ();
	if (data != null) {
	if (data.width != -1 \|\| data.height != -1) {
	code.append ("\t\t");
	if (first) {
	code.append ("RowData ");
	first = false;
	}
	if (data.width == -1) {
	code.append ("data = new RowData (SWT.DEFAULT, " + data.height + ");\n");
	} else if (data.height == -1) {
	code.append ("data = new RowData (" + data.width + ", SWT.DEFAULT);\n");
	} else {
	code.append ("data = new RowData (" + data.width + ", " + data.height + ");\n");
	}
	code.append ("\t\t" + names [i] + ".setLayoutData (data);\n");
	}
	}
	}
	return code;
	}

	/**
	* Returns the layout data field names.
	*/
	String [] getLayoutDataFieldNames() {
	return new String [] {
	"",
	"Control",
	"width",
	"height"
	};
	}

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

	/**
	* Takes information from TableEditors and stores it.
	*/
	void resetEditors () {
	resetEditors (false);
	}

	void resetEditors (boolean tab) {
	TableItem oldItem = comboEditor.getItem ();
	if (oldItem != null) {
	int row = table.indexOf (oldItem);
	/* Make sure user has entered valid data */
	try {
	new Integer (widthText.getText ()).intValue ();
	} catch (NumberFormatException e) {
	widthText.setText (oldItem.getText (WIDTH_COL));
	}
	try {
	new Integer (heightText.getText ()).intValue ();
	} catch (NumberFormatException e) {
	heightText.setText (oldItem.getText (HEIGHT_COL));
	}
	String [] insert = new String [] {
	String.valueOf (row), combo.getText (), widthText.getText (), heightText.getText ()};
	data.setElementAt (insert, row);
	for (int i = 0 ; i < TOTAL_COLS; i++) {
	oldItem.setText (i, ((String [])data.elementAt (row)) [i]);
	}
	if (!tab) disposeEditors ();
	}
	setLayoutState ();
	refreshLayoutComposite ();
	setLayoutData ();
	layoutComposite.layout (true);
	layoutGroup.layout (true);
	}

	/**
	* Sets the layout data for the children of the layout.
	*/
	void setLayoutData () {
	Control [] children = layoutComposite.getChildren ();
	TableItem [] items = table.getItems ();
	RowData data;
	int width, height;
	for (int i = 0; i < children.length; i++) {
	width = new Integer (items [i].getText (WIDTH_COL)).intValue ();
	height = new Integer (items [i].getText (HEIGHT_COL)).intValue ();
	data = new RowData (width, height);
	children [i].setLayoutData (data);
	}

	}

	/**
	* Sets the state of the layout.
	*/
	void setLayoutState () {
	/* Set the type of layout */
	if (vertical.getSelection ()) {
	rowLayout.type = SWT.VERTICAL;
	} else {
	rowLayout.type = SWT.HORIZONTAL;
	}

	/* Set the margins and spacing */
	try {
	rowLayout.marginRight = new Integer (marginRight.getText ()).intValue ();
	} catch (NumberFormatException e) {
	rowLayout.marginRight = 3;
	marginRight.select (1);
	}
	try {
	rowLayout.marginLeft = new Integer (marginLeft.getText ()).intValue ();
	} catch (NumberFormatException e) {
	rowLayout.marginLeft = 3;
	marginLeft.select (1);
	}
	try {
	rowLayout.marginTop = new Integer (marginTop.getText ()).intValue ();
	} catch (NumberFormatException e) {
	rowLayout.marginTop = 3;
	marginTop.select (1);
	}
	try {
	rowLayout.marginBottom = new Integer (marginBottom.getText ()).intValue ();
	} catch (NumberFormatException e) {
	rowLayout.marginBottom = 3;
	marginBottom.select (1);
	}
	try {
	rowLayout.spacing = new Integer (spacing.getText ()).intValue ();
	} catch (NumberFormatException e) {
	rowLayout.spacing = 3;
	spacing.select (1);
	}

	/* Set the other layout properties */
	rowLayout.wrap = wrap.getSelection ();
	rowLayout.pack = pack.getSelection ();
	rowLayout.justify = justify.getSelection ();
	}
	}