/*******************************************************************************
 * Copyright (c) 2001, 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
 *     Jens Lukowski/Innoopract - initial renaming/restructuring
 *     
 *******************************************************************************/
package org.eclipse.wst.xml.ui.internal.nsedit;

import java.util.ArrayList;
import java.util.List;

import org.eclipse.jface.viewers.ColumnWeightData;
import org.eclipse.jface.viewers.IStructuredContentProvider;
import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.jface.viewers.TableLayout;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.MouseAdapter;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.swt.widgets.TableItem;
import org.eclipse.wst.xml.core.internal.contentmodel.util.NamespaceInfo;
import org.eclipse.wst.xml.ui.internal.XMLUIMessages;

public class CommonNamespaceInfoTable extends TableViewer {

	/**
	 * NamespaceInfoTableLabelProvider
	 */
	protected class Provider extends LabelProvider implements ITableLabelProvider, IStructuredContentProvider {
		Viewer viewer;

		public Image getColumnImage(Object object, int columnIndex) {
			Image result = null;
			int columnCode = getColumnCode(columnIndex);
			if (columnCode == COLUMN_LOCATION_HINT) {
				NamespaceInfo info = (NamespaceInfo) object;
				if ((info.locationHint == null) || info.locationHint.trim().equals("")) { //$NON-NLS-1$
					// Comment this out until we solve the alignment/(space
					// for image being allocated
					// to prefix column) ......
					// result =
					// XMLEditorPluginImageHelper.getInstance().getImage(XMLEditorPluginImages.IMG_OBJ_WARNING_OBJ);
				}
			}

			return result;
		}

		public String getColumnText(Object object, int column) {
			NamespaceInfo info = (NamespaceInfo) object;
			String result = null;
			int columnCode = getColumnCode(column);
			switch (columnCode) {
				case COLUMN_PREFIX : {
					result = info.prefix;
					break;
				}
				case COLUMN_NAMESPACE_URI : {
					result = info.uri;
					break;
				}
				case COLUMN_CHECKBOX : {
					result = ""; // info.locationHint; //$NON-NLS-1$
					break;
				}
				case COLUMN_LOCATION_HINT : {
					result = info.locationHint;
					break;
				}
			}
			result = result != null ? result : ""; //$NON-NLS-1$
			if (result.equals("")) { //$NON-NLS-1$
				switch (columnCode) {
					case COLUMN_PREFIX : {
						result = XMLUIMessages._UI_NO_PREFIX;
						break;
					}
					case COLUMN_NAMESPACE_URI : {
						result = XMLUIMessages._UI_NO_NAMESPACE_NAME;
						break;
					}
				}
			}
			return result;
		}

		public Object[] getElements(Object inputElement) {
			List list = (List) viewer.getInput();
			return list != null ? list.toArray() : null;
		}

		public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {
			this.viewer = viewer;
		}
	}

	class TableItemChecker extends MouseAdapter {
		public void mouseDown(MouseEvent e) {
			TableItem item = getTable().getItem(new Point(e.x, e.y));
			if (item != null) {
				Object obj = item.getData();
				if (obj != null) {
					NamespaceInfo info = (NamespaceInfo) obj;
					TableColumn col = getTable().getColumn(0);
					if (e.x < col.getWidth()) // if the point falls within
												// the
					// Select column then perform
					// check/uncheck
					{
						String currentState = (String) info.getProperty("checked"); //$NON-NLS-1$
						System.out.println("currentState" + currentState); //$NON-NLS-1$
						if ((currentState == null) || currentState.equals("false")) //$NON-NLS-1$
						{
							info.setProperty("checked", "true"); //$NON-NLS-1$ //$NON-NLS-2$
						}
						else {
							info.setProperty("checked", "false"); //$NON-NLS-1$ //$NON-NLS-2$
						}
						refresh();
					}
				}
			}
		}
	}

	protected static final int COLUMN_CHECKBOX = 1;
	protected static final int COLUMN_LOCATION_HINT = 4;
	protected static final int COLUMN_NAMESPACE_URI = 2;
	protected static final int COLUMN_PREFIX = 3;

	protected static final String LABEL_CHECKBOX = ""; //$NON-NLS-1$
	protected static final String LABEL_LOCATION_HINT = XMLUIMessages._UI_LABEL_LOCATION_HINT;
	protected static final String LABEL_NAMESPACE_URI = XMLUIMessages._UI_LABEL_NAMESPACE_NAME;
	protected static final String LABEL_PREFIX = XMLUIMessages._UI_LABEL_PREFIX;
	protected List checkedList = new ArrayList();

	// protected List namespaceInfoList = new ArrayList();
	protected int[] columnIndexMap;
	protected boolean showCheckBoxes = true;
	private boolean showLocationText = false;

	private Table table;
	protected int visibleRows = -1;

	public CommonNamespaceInfoTable(Composite parent, int visibleRows) {
		this(parent, SWT.FULL_SELECTION | SWT.MULTI | SWT.BORDER, visibleRows, false);
	}

	// protected CellEditor getCellEditor(int column)
	// {
	// return (column == COLUMN_CHECKBOX) ? checkBoxCellEditor :
	// textCellEditor;
	// }

	public CommonNamespaceInfoTable(Composite parent, int visibleRows, boolean showLocationText) {
		this(parent, SWT.FULL_SELECTION | SWT.MULTI | SWT.BORDER, visibleRows, showLocationText);
	}

	public CommonNamespaceInfoTable(Composite parent, int style, int visibleRows) {
		this(parent, SWT.FULL_SELECTION | SWT.MULTI | SWT.BORDER | style, visibleRows, false);
	}

	public CommonNamespaceInfoTable(Composite parent, int style, int visibleRows, boolean showLocationText) {
		super(new Table(parent, style));
		getTable().setLinesVisible(true);
		this.showCheckBoxes = (style & SWT.CHECK) != 0;
		columnIndexMap = createColumnIndexMap();
		this.showLocationText = showLocationText;

		Provider provider = new Provider();
		setContentProvider(provider);
		setLabelProvider(provider);

		String[] columnPropertiesArray = createColumnPropertiesArray();
		setColumnProperties(columnPropertiesArray);

		table = getTable();
		table.setHeaderVisible(true);
		table.setLayoutData(new GridData(GridData.FILL_BOTH));

		TableLayout layout = new TableLayout();

		for (int i = 0; i < columnPropertiesArray.length; i++) {
			TableColumn column = new TableColumn(table, i);
			if ((columnPropertiesArray[i]).equals(LABEL_LOCATION_HINT)) {
				if (showLocationText) {
					column.setText(columnPropertiesArray[i]);
				}
				else {
					// Comment this out until we solve the alignment/(space
					// for image being allocated
					// to prefix column) ......
					// column.setImage(XMLEditorPluginImageHelper.getInstance().getImage(XMLEditorPluginImages.IMG_OBJ_TXTEXT));
				}
			}
			else {
				column.setText(columnPropertiesArray[i]);
			}
			column.setAlignment(SWT.LEFT);
			layout.addColumnData(new ColumnWeightData(getColumnWidth(i), true));
		}
		table.setLayout(layout);

		this.visibleRows = visibleRows;
		// for (int i = 0; i < visibleRows; i++)
		// {
		// TableItem item = new TableItem(table, SWT.NONE);
		// item.setText("#######");
		// }
		// checkBoxCellEditor = new NamespaceInfoCheckboxCellEditor(table);
		// textCellEditor = new TextCellEditor(table);

		/*
		 * CellEditor[] cellEditors = new
		 * CellEditor[columnPropertiesArray.length]; for (int i = 0; i <
		 * columnPropertiesArray.length; i++) { cellEditors[i] =
		 * getCellEditor(i); } setCellEditors(cellEditors);
		 */
		// if (showCheckBoxes)
		// {
		// getTable().addMouseListener(new TableItemChecker());
		// }
	}

	// protected CellEditor checkBoxCellEditor;
	// protected CellEditor textCellEditor;

	protected int[] createColumnIndexMap() {
		int[] result = new int[showCheckBoxes ? 4 : 3];
		int i = 0;
		if (showCheckBoxes) {
			result[i++] = COLUMN_CHECKBOX;
		}
		result[i++] = COLUMN_PREFIX;
		result[i++] = COLUMN_NAMESPACE_URI;
		if (!showCheckBoxes) {
			result[i++] = COLUMN_LOCATION_HINT;
		}
		return result;
	}

	protected String[] createColumnPropertiesArray() {
		String[] result = new String[3];
		int i = 0;
		if (showCheckBoxes) {
			result[i++] = LABEL_CHECKBOX;
		}
		result[i++] = LABEL_PREFIX;
		result[i++] = LABEL_NAMESPACE_URI;
		if (!showCheckBoxes) {
			result[i++] = LABEL_LOCATION_HINT;
		}
		return result;
	}

	protected int getColumnCode(int column) {
		int result = 0;
		if (column < columnIndexMap.length) {
			result = columnIndexMap[column];
		}
		return result;
	}

	protected int getColumnWidth(int column) {
		int result = 0;
		switch (getColumnCode(column)) {
			case COLUMN_PREFIX : {
				result = 5;
				break;
			}
			case COLUMN_NAMESPACE_URI : {
				// Size columns differently when location hint text label is
				// displayed
				if (showLocationText) {
					result = 10;
				}
				else {
					result = 20;
				}
				break;
			}
			case COLUMN_CHECKBOX : {
				result = 1; // info.locationHint;
				break;
			}
			case COLUMN_LOCATION_HINT : {
				// Size columns differently when location hint text label is
				// displayed
				if (showLocationText) {
					result = 10;
				}
				else {
					result = 2;
				}
				break;
			}
		}
		return result;
	}
	/*
	 * protected class NamespaceInfoCellModifier implements ICellModifier {
	 * public NamespaceInfoCellModifier() { }
	 * 
	 * public boolean canModify(Object element, String property) { if
	 * (property.equals(LABEL_CHECKBOX)) { return true; } else if
	 * (property.equals(LABEL_PREFIX)) { return true; } return false; }
	 * 
	 * public Object getValue(Object element, String property) { int column =
	 * 0; if (property.equals(LABEL_CHECKBOX)) { column = 0; } else if
	 * (property.equals(LABEL_PREFIX)) { column = 1; } else if
	 * (property.equals(LABEL_NAMESPACE_URI)) { column = 2; }
	 * 
	 * //if (element instanceof TableElement) //{ // return
	 * provider.getColumnText(element, column); //} //else //{ // return null; // }
	 * return "hello"; }
	 * 
	 * public void modify(Object element, String property, Object value) { } }
	 * 
	 * protected class NamespaceInfoCheckboxCellEditor extends
	 * CheckboxCellEditor implements MouseListener { public
	 * NamespaceInfoCheckboxCellEditor(Composite parent) { super(parent); }
	 * 
	 * protected void doSetValue(Object value) { }
	 * 
	 * public void activate() { super.activate(); deactivate();
	 * Display.getCurrent().getFocusControl().redraw(); }
	 * 
	 * public void mouseDown(MouseEvent e) { if (getTable().getItem(new
	 * Point(e.x, e.y)) != null) { } } public void mouseDoubleClick(MouseEvent
	 * e) { } public void mouseUp(MouseEvent e) { } }
	 */
}