/*
* {{{ header & license
* Copyright (c) 2007 Vianney le Clément
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
* }}}
*/
package org.xhtmlrenderer.simple.xhtml.swt;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Control;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.xhtmlrenderer.css.style.CalculatedStyle;
import org.xhtmlrenderer.extend.UserAgentCallback;
import org.xhtmlrenderer.layout.LayoutContext;
import org.xhtmlrenderer.resource.ImageResource;
import org.xhtmlrenderer.simple.xhtml.FormControl;
import org.xhtmlrenderer.simple.xhtml.controls.ButtonControl;
import org.xhtmlrenderer.swt.BasicRenderer;
import org.xhtmlrenderer.swt.SWTFSImage;
public class SWTButtonControl extends SWTXhtmlControl {
private Image _image = null;
public SWTButtonControl(FormControl control, BasicRenderer parent,
LayoutContext c, CalculatedStyle style, UserAgentCallback uac) {
super(control, parent, c, style, uac);
}
protected Control createSWTControl(FormControl control,
BasicRenderer parent, LayoutContext c, CalculatedStyle style,
UserAgentCallback uac) {
final ButtonControl bc = (ButtonControl) control;
final Button button = new Button(parent, SWT.PUSH);
button.setText(bc.getLabel());
if (bc.isExtended()) {
// when defined with <button>, allow the first image to be used
NodeList images = bc.getElement().getElementsByTagName("img");
if (images.getLength() > 0) {
Element img = (Element) images.item(0);
String uri = c.getNamespaceHandler().getImageSourceURI(img);
ImageResource res = uac.getImageResource(uri);
SWTFSImage fsi = (SWTFSImage) res.getImage();
// copy the image to prevent disposal, and apply a disabled
// effect if needed
_image = new Image(button.getDisplay(), fsi.getImage(), (bc
.isEnabled() ? SWT.IMAGE_COPY : SWT.IMAGE_DISABLE));
button.setImage(_image);
}
}
if (bc.getType().equals("submit")) {
button.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
if (bc.press()) {
bc.getForm().submit();
}
}
});
// TODO better per form handling?
parent.getShell().setDefaultButton(button);
} else if (bc.getType().equals("reset")) {
button.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
if (bc.press()) {
bc.getForm().reset();
}
}
});
} else {
button.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
bc.press();
}
});
}
return button;
}
public int getIdealHeight() {
getSWTControl().pack();
return getSWTControl().getSize().y;
}
public int getIdealWidth() {
getSWTControl().pack();
return getSWTControl().getSize().x;
}
public void dispose() {
super.dispose();
if (_image != null) {
_image.dispose();
}
}
}