Attachment 65176 Details for Bug 22261 – TriButton: possible implementation of 3-state control.

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TriButton: possible implementation of 3-state control.

TriButton.java (text/plain), 5.22 KB, created by Oleg Krasilnikov

on 2007-04-27 05:26:39 EDT

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Creator: Oleg Krasilnikov

Created: 2007-04-27 05:26:39 EDT

Size: 5.22 KB

patch

obsolete

>/*******************************************************************************
> * Copyright (c) 2007 Intel 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:
> *     Intel Corporation - initial API and implementation
> *******************************************************************************/
>package org.eclipse.cdt.ui.newui;
>
>import java.util.Iterator;
>import java.util.LinkedList;
>import java.util.List;
>
>import org.eclipse.swt.SWT;
>import org.eclipse.swt.events.MouseEvent;
>import org.eclipse.swt.events.MouseListener;
>import org.eclipse.swt.events.SelectionEvent;
>import org.eclipse.swt.events.SelectionListener;
>import org.eclipse.swt.graphics.Image;
>import org.eclipse.swt.layout.GridData;
>import org.eclipse.swt.layout.GridLayout;
>import org.eclipse.swt.widgets.Button;
>import org.eclipse.swt.widgets.Combo;
>import org.eclipse.swt.widgets.Composite;
>import org.eclipse.swt.widgets.Event;
>import org.eclipse.swt.widgets.Label;
>
>public class TriButton extends Composite implements SelectionListener {
>	private static final String[] ITEMS = {"No", "Yes", "?"}; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
>
>	public static final int NO  = 0;
>	public static final int YES = 1;
>	public static final int UNKNOWN = 2;
>	
>	private boolean triMode = false;
>	private Button button = null;
>	private Combo combo = null;
>	private Label label = null;
>	private List listeners = new LinkedList();
>
>	public TriButton(Composite parent, int style) {
>		this(parent, style, true);
>	}
>
>	public TriButton(Composite parent, int style, boolean _triMode) {
>		super(parent, style);
>		triMode = _triMode;
>		if (triMode) {
>			setLayout(new GridLayout(2, false));
>			combo = new Combo(this, style | SWT.READ_ONLY | SWT.DROP_DOWN);
>			combo.setLayoutData(new GridData(GridData.BEGINNING));
>			combo.setItems(ITEMS);
>			combo.addSelectionListener(this);
>			label = new Label(this, SWT.NONE);
>			label.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
>			label.addMouseListener(new MouseListener() {
>				public void mouseDoubleClick(MouseEvent e) {}
>				public void mouseDown(MouseEvent e) {}
>				public void mouseUp(MouseEvent e) {
>					processMouseUp(e);
>				}});
>		} else {
>			setLayout(new GridLayout());
>			button = new Button(this, style | SWT.CHECK);
>			button.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
>			button.addSelectionListener(this);
>		}
>	}
>
>	public String getText () {
>		return triMode ? label.getText() : button.getText(); 
>	}
>	public void setText (String string) {
>		if (triMode) label.setText(string); 
>		else button.setText(string);
>	}
>
>	public String getToolTipText () {
>		return triMode ? label.getToolTipText() : button.getToolTipText(); 
>	}
>	public void setToolTipText (String string) {
>		if (triMode) {
>			label.setToolTipText(string); 
>			combo.setToolTipText(string); 
>		} else button.setToolTipText(string);
>	}
>	
>	public boolean getSelection () {
>		return triMode ? (combo.getSelectionIndex() == YES) : button.getSelection();
>	}
>	public void setSelection (boolean selected) {
>		if (triMode) combo.select(selected ? YES : NO);
>		else button.setSelection(selected);
>	}
>	
>	public int getTriSelection () {
>		return triMode ? combo.getSelectionIndex(): (button.getSelection() ? YES : NO);
>	}
>	public void setTriSelection(int selection) {
>		if (selection != NO && 
>			selection != YES && 
>			selection != UNKNOWN) 
>			selection = NO;
>		if (triMode) combo.select(selection);
>		else button.setSelection(selection == 1);
>	}
>	
>	public int getAlignment () {
>		return triMode ? label.getAlignment() : button.getAlignment();
>	}
>	public void setAlignment (int alignment) {
>		if (triMode) label.setAlignment(alignment);
>		else button.setAlignment(alignment);
>	}
>
>	public Image getImage () {
>		return triMode ? label.getImage() : button.getImage();
>	}
>	public void setImage (Image image) {
>		if (triMode) label.setImage(image);
>		else button.setImage(image);
>	}
>	
>	public void addSelectionListener (SelectionListener listener) {
>		listeners.add(listener);
>	}
>	public void removeSelectionListener (SelectionListener listener) {
>		listeners.remove(listener);
>	}
>
>	public void widgetDefaultSelected(SelectionEvent e) {
>		e.widget = this;
>		Iterator it = listeners.iterator();
>		while (it.hasNext())
>			((SelectionListener)it.next()).widgetDefaultSelected(e);
>	}
>	public void widgetSelected(SelectionEvent e) {
>		e.widget = this;
>		Iterator it = listeners.iterator();
>		while (it.hasNext())
>			((SelectionListener)it.next()).widgetSelected(e);
>	}
>	
>	private void processMouseUp(MouseEvent me) {
>		int x = combo.getSelectionIndex() + 1;
>		if (x < 0 || x > 2) x = 0;
>		combo.select(x);
>		
>		Event e = new Event();
>		e.button = me.button;
>		e.count = me.count;
>		e.data = me.data;
>		e.display = me.display;
>		e.stateMask = me.stateMask;
>		e.time = me.time;
>		e.x = me.x;		
>		e.y = me.y;
>		e.type = SWT.Selection;
>		e.doit = true;
>		e.item = this;
>		e.widget = this;
>		SelectionEvent se = new SelectionEvent(e);
>		widgetSelected(se);
>	}
>}

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Attachments on bug 22261: 27940 | 27941 | 27942 | 45177 | 65176 | 65206