ModuleDetailsTreeLabelProvider.java

/*
  ModuleDetailsTreeLabelProvider.java

  (c) 2011-2013 Edward Swartz

  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
 */
package v9t9.gui.client.swt.shells.modules;

import java.net.URI;
import java.util.Map;

import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.jface.viewers.BaseLabelProvider;
import org.eclipse.jface.viewers.ITableColorProvider;
import org.eclipse.jface.viewers.ITableFontProvider;
import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.jface.viewers.TreeNode;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.widgets.Display;

import v9t9.common.memory.MemoryEntryInfo;
import v9t9.common.modules.IModule;
import ejs.base.properties.IProperty;
import ejs.base.utils.Pair;

/**
 * Provide labels for the "Module Details..." tree.
 * @author ejs
 *
 */
class ModuleDetailsTreeLabelProvider extends BaseLabelProvider implements ITableLabelProvider,
	ITableColorProvider, ITableFontProvider {

	/* (non-Javadoc)
	 * @see org.eclipse.jface.viewers.ITableLabelProvider#getColumnImage(java.lang.Object, int)
	 */
	@Override
	public Image getColumnImage(Object element, int columnIndex) {
		return null;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.jface.viewers.ITableLabelProvider#getColumnText(java.lang.Object, int)
	 */
	@Override
	public String getColumnText(Object nodeElement, int columnIndex) {
		TreeNode treeNode = (TreeNode) nodeElement;
		Object element = treeNode.getValue();
		switch (columnIndex) {
		case 0:
			if (element instanceof IProperty)
				return "Search Path Property";
			if (element instanceof IModule)
				return "Memory Entries";
			if (element instanceof MemoryEntryInfo)
				return "Expected Properties";
			//if (element instanceof StoredMemoryEntryInfo)
			//	return split(((StoredMemoryEntryInfo) element).uri.getPath()).second;
			if (element instanceof Map.Entry)
				return ((Map.Entry<?, ?>) element).getKey().toString();
			if (element instanceof Pair)
				return ((Pair<?, ?>) element).first.toString();
			if (element instanceof URI)
				return ((URI) element).toString();
			return element.toString();
		case 1:
			if (element instanceof IProperty)
				return ((IProperty) element).getName();
			if (element instanceof IModule)
				return null;
			if (element instanceof String)
				return element.toString();
			if (element instanceof MemoryEntryInfo)
				return null;
			//if (element instanceof StoredMemoryEntryInfo)
			//	return split(((StoredMemoryEntryInfo) element).uri.getPath()).first;
			if (element instanceof Map.Entry)
				return ((Map.Entry<?, ?>) element).getValue().toString();
			if (element instanceof Pair)
				return ((Pair<?, ?>) element).second.toString();
			if (element instanceof URI) {
				return treeNode instanceof ErrorTreeNode ? "missing" : "present";
			}
			return null;
		}
		return null;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.jface.viewers.ITableColorProvider#getForeground(java.lang.Object, int)
	 */
	@Override
	public Color getForeground(Object element, int columnIndex) {
		return element instanceof ErrorTreeNode 
		? Display.getDefault().getSystemColor(SWT.COLOR_RED) : null;
	}

	/* (non-Javadoc)
	 * @see org.eclipse.jface.viewers.ITableColorProvider#getBackground(java.lang.Object, int)
	 */
	@Override
	public Color getBackground(Object element, int columnIndex) {
		return null;
	}
	

	/* (non-Javadoc)
	 * @see org.eclipse.jface.viewers.ITableFontProvider#getFont(java.lang.Object, int)
	 */
	@Override
	public Font getFont(Object element, int columnIndex) {
		if (columnIndex == 0 && element instanceof InfoTreeNode) 
			return JFaceResources.getFontRegistry().getItalic(JFaceResources.DEFAULT_FONT);
		
		if (columnIndex == 1 && ((TreeNode) element).getValue() instanceof IProperty)
			return JFaceResources.getTextFont();
		
		return null;
	}
	
	
}