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/*******************************************************************************
* Copyright (c) 2006 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.wst.dtd.ui.internal.properties.section;
import java.util.Iterator;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CCombo;
import org.eclipse.swt.custom.CLabel;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.FontMetrics;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.layout.FormAttachment;
import org.eclipse.swt.layout.FormData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.ui.views.properties.tabbed.ITabbedPropertyConstants;
import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetWidgetFactory;
import org.eclipse.wst.dtd.core.internal.CMBasicNode;
import org.eclipse.wst.dtd.core.internal.CMGroupNode;
import org.eclipse.wst.dtd.core.internal.CMNode;
import org.eclipse.wst.dtd.core.internal.DTDNode;
import org.eclipse.wst.dtd.core.internal.Element;
import org.eclipse.wst.dtd.core.internal.Entity;
import org.eclipse.wst.dtd.ui.internal.DTDPropertiesMessages;
public class ContentModelTypeSection extends AbstractSection {
private final String CONTENT_TYPE = DTDPropertiesMessages._UI_LABEL_CONTENT_TYPE;
private CCombo typeCombo;
private String[] typeComboValues = {CMNode.ANY, CMNode.EMPTY, CMNode.PCDATA, CMNode.CHILDREN, CMNode.MIXED};
private FontMetrics fFontMetrics;
/**
* @see org.eclipse.wst.common.ui.properties.internal.provisional.ITabbedPropertySection#createControls(org.eclipse.swt.widgets.Composite,
* org.eclipse.wst.common.ui.properties.internal.provisional.TabbedPropertySheetWidgetFactory)
*/
public void createControls(Composite parent, TabbedPropertySheetWidgetFactory factory) {
super.createControls(parent, factory);
Composite composite = getWidgetFactory().createFlatFormComposite(parent);
FormData data;
// Create label first then attach other control to it
CLabel cLabel = getWidgetFactory().createCLabel(composite, CONTENT_TYPE);
initializeFontMetrics(cLabel);
int labelWidth = getLabelWidth(cLabel.getText());
data = new FormData(labelWidth, SWT.DEFAULT);
data.left = new FormAttachment(0, 0);
data.top = new FormAttachment(0, 0);
cLabel.setLayoutData(data);
typeCombo = getWidgetFactory().createCCombo(composite, SWT.FLAT);
data = new FormData();
data.left = new FormAttachment(cLabel, -ITabbedPropertyConstants.HSPACE);
data.right = new FormAttachment(100);
data.top = new FormAttachment(cLabel, 0, SWT.CENTER);
typeCombo.setLayoutData(data);
typeCombo.addSelectionListener(this);
typeCombo.setItems(typeComboValues);
}
/*
* @see org.eclipse.wst.common.ui.properties.internal.provisional.view.ITabbedPropertySection#refresh()
*/
public void refresh() {
Object input = getInput();
if (input != null) {
if (input instanceof CMNode) {
typeCombo.removeAll();
typeCombo.add(CMNode.ANY);
typeCombo.add(CMNode.EMPTY);
typeCombo.add(CMNode.PCDATA);
typeCombo.add(CMNode.CHILDREN);
typeCombo.add(CMNode.MIXED);
Iterator iterator = ((CMNode) input).getDTDFile().getNodes().iterator();
String nodeName = null;
while (iterator.hasNext()) {
DTDNode node = (DTDNode) iterator.next();
nodeName = node.getName();
if (node instanceof Element && typeCombo.indexOf(nodeName) == -1)
typeCombo.add(nodeName);
else if (node instanceof Entity && ((Entity) node).isParameterEntity() && typeCombo.indexOf(nodeName) == -1)
typeCombo.add("%" + nodeName + ";"); //$NON-NLS-1$ //$NON-NLS-2$
}
if (input instanceof CMGroupNode)
typeCombo.setText(((CMGroupNode) input).getType());
else if (input instanceof CMBasicNode)
typeCombo.setText(((CMBasicNode) input).getType());
}
} // end if (fInput != null)
}
public void widgetSelected(SelectionEvent e) {
if (e.widget == typeCombo) {
Object input = getInput();
if (input instanceof CMGroupNode || input instanceof CMBasicNode) {
CMNode node = (CMNode) input;
String selected = typeCombo.getText();
if (CMNode.MIXED.equals(selected))
node.setMixedContent();
else if (CMNode.CHILDREN.equals(selected))
node.setChildrenContent(""); //$NON-NLS-1$
else if (CMNode.EMPTY.equals(selected) || CMNode.ANY.equals(selected) || CMNode.PCDATA.equals(selected))
node.setContent(selected);
else
node.setChildrenContent(selected);
}
}
}
public boolean shouldUseExtraSpace() {
return false;
}
/**
* Initilize font metrics
*
* @param control
*/
private void initializeFontMetrics(Control control) {
GC gc = new GC(control);
gc.setFont(control.getFont());
fFontMetrics = gc.getFontMetrics();
gc.dispose();
}
/**
* Determine appropriate label width
*
* @param labelText
* @return
*/
private int getLabelWidth(String labelText) {
int labelWidth = 98;
int pixels = Dialog.convertWidthInCharsToPixels(fFontMetrics, labelText.length() + 5);
labelWidth = Math.max(pixels, labelWidth);
return labelWidth;
}
}
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