/*******************************************************************************
 * Copyright (c) 2000, 2004 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
 * Port to the D programming language:
 *     yidabu at gmail dot com  ( D China http://www.d-programming-language-china.org/ )  
 *******************************************************************************/

module snippets.table.Snippet96;

// http://dev.eclipse.org/viewcvs/index.cgi/org.eclipse.swt.snippets/src/org/eclipse/swt/snippets/Snippet96.java?view=co

/*
 * TableCursor example snippet: navigate a table cells with arrow keys. 
 * Edit when user hits Return key.  Exit edit mode by hitting Escape (cancels edit)
 * or Return (applies edit to table).
 *
 * For a list of all SWT example snippets see
 * http://www.eclipse.org/swt/snippets/
 */
import dwt.DWT;
import dwt.widgets.Button;
import dwt.widgets.Display;
import dwt.widgets.Event;
import dwt.widgets.Label;
import dwt.widgets.Listener;
import dwt.widgets.Shell;
import dwt.widgets.Table;
import dwt.widgets.TableItem;
import dwt.widgets.TableColumn;
import dwt.widgets.Text;

import dwt.custom.TableCursor;
import dwt.custom.ControlEditor;

import dwt.layout.GridData;
import dwt.layout.GridLayout;

import dwt.events.SelectionEvent;
import dwt.events.SelectionAdapter;
import dwt.events.KeyEvent;
import dwt.events.KeyAdapter;
import dwt.events.FocusEvent;
import dwt.events.FocusAdapter;
import dwt.events.MouseEvent;
import dwt.events.MouseAdapter;

import dwt.dwthelper.utils;

import tango.util.Convert;


void main(String[] args)
{
    Snippet96.main(args);
}


public class Snippet96 {

public static void main(String[] args) {
	Display display = new Display();
	Shell shell = new Shell(display);
	shell.setLayout(new GridLayout());

	// create a a table with 3 columns and fill with data
	final Table table = new Table(shell, DWT.BORDER | DWT.MULTI | DWT.FULL_SELECTION);
	table.setLayoutData(new GridData(GridData.FILL_BOTH));
	TableColumn column1 = new TableColumn(table, DWT.NONE);
	TableColumn column2 = new TableColumn(table, DWT.NONE);
	TableColumn column3 = new TableColumn(table, DWT.NONE);
	for (int i = 0; i < 100; i++) {
		TableItem item = new TableItem(table, DWT.NONE);
		item.setText(["cell " ~ to!(char[])(i) ~ " 0", 	"cell " ~ to!(char[])(i) ~ " 1", "cell " ~ to!(char[])(i) ~ " 2" ]);
	}
	column1.pack();
	column2.pack();
	column3.pack();

	// create a TableCursor to navigate around the table
	final TableCursor cursor = new TableCursor(table, DWT.NONE);
	// create an editor to edit the cell when the user hits "ENTER" 
	// while over a cell in the table
	final ControlEditor editor = new ControlEditor(cursor);
	editor.grabHorizontal = true;
	editor.grabVertical = true;

	cursor.addSelectionListener(new class(table, editor, cursor) SelectionAdapter {
		// when the TableEditor is over a cell, select the corresponding row in 
		// the table
        
        Table table;
        ControlEditor editor;
        TableCursor cursor;
        this(Table table_, ControlEditor editor_, TableCursor cursor_)
        {
            table = table_;
            editor = editor_;
            cursor = cursor_;
        }
        
		public void widgetSelected(SelectionEvent e) {
			table.setSelection([cursor.getRow()]);
		}
		// when the user hits "ENTER" in the TableCursor, pop up a text editor so that 
		// they can change the text of the cell
		public void widgetDefaultSelected(SelectionEvent e) {
			final Text text = new Text(cursor, DWT.NONE);
			TableItem row = cursor.getRow();
			int column = cursor.getColumn();
			text.setText(row.getText(column));
			text.addKeyListener(new class(text, cursor) KeyAdapter {
                Text text;
                TableCursor cursor;
                this(Text text_, TableCursor cursor_)
                {
                    text = text_;
                    cursor = cursor_;
                }                
				public void keyPressed(KeyEvent e) {
					// close the text editor and copy the data over 
					// when the user hits "ENTER"
					if (e.character == DWT.CR) {
						TableItem row = cursor.getRow();
						int column = cursor.getColumn();
						row.setText(column, text.getText());
						text.dispose();
					}
					// close the text editor when the user hits "ESC"
					if (e.character == DWT.ESC) {
						text.dispose();
					}
				}
			});
			// close the text editor when the user tabs away
			text.addFocusListener(new class(text) FocusAdapter {
                Text text;
                this(Text text_)
                {
                    text = text_;
                }                 
				public void focusLost(FocusEvent e) {
					text.dispose();
				}
			});
			editor.setEditor(text);
			text.setFocus();
		}
	});
	// Hide the TableCursor when the user hits the "CTRL" or "SHIFT" key.
	// This alows the user to select multiple items in the table.
	cursor.addKeyListener(new class(cursor) KeyAdapter {
        TableCursor cursor;
        this(TableCursor cursor_)
        {
            cursor = cursor_;
        }          
		public void keyPressed(KeyEvent e) {
			if (e.keyCode == DWT.CTRL
				|| e.keyCode == DWT.SHIFT
				|| (e.stateMask & DWT.CONTROL) != 0
				|| (e.stateMask & DWT.SHIFT) != 0) {
				cursor.setVisible(false);
			}
		}
	});
	// When the user double clicks in the TableCursor, pop up a text editor so that 
	// they can change the text of the cell
	cursor.addMouseListener(new class(cursor, editor) MouseAdapter {
        ControlEditor editor;
        TableCursor cursor;
        this(TableCursor cursor_, ControlEditor editor_)
        {
            cursor = cursor_;
            editor = editor_;
        }        
        
		public void mouseDown(MouseEvent e) {
			final Text text = new Text(cursor, DWT.NONE);
			TableItem row = cursor.getRow();
			int column = cursor.getColumn();
			text.setText(row.getText(column));
			text.addKeyListener(new class(text, cursor) KeyAdapter {
                Text text;
                TableCursor cursor;
                this(Text text_, TableCursor cursor_)
                {
                    text = text_;
                    cursor = cursor_;
                }                  
				public void keyPressed(KeyEvent e) {
					// close the text editor and copy the data over 
					// when the user hits "ENTER"
					if (e.character == DWT.CR) {
						TableItem row = cursor.getRow();
						int column = cursor.getColumn();
						row.setText(column, text.getText());
						text.dispose();
					}
					// close the text editor when the user hits "ESC"
					if (e.character == DWT.ESC) {
						text.dispose();
					}
				}
			});
			// close the text editor when the user clicks away
			text.addFocusListener(new class(text) FocusAdapter {
                Text text;
                this(Text text_)
                {
                    text = text_;
                }                  
				public void focusLost(FocusEvent e) {
					text.dispose();
				}
			});
			editor.setEditor(text);
			text.setFocus();
		}
	});
	
	// Show the TableCursor when the user releases the "SHIFT" or "CTRL" key.
	// This signals the end of the multiple selection task.
	table.addKeyListener(new class(table, cursor) KeyAdapter {
        Table table;
        TableCursor cursor;
        this(Table table_, TableCursor cursor_)
        {
            table = table_;
            cursor = cursor_;
        }        
		public void keyReleased(KeyEvent e) {
			if (e.keyCode == DWT.CONTROL && (e.stateMask & DWT.SHIFT) != 0)
				return;
			if (e.keyCode == DWT.SHIFT && (e.stateMask & DWT.CONTROL) != 0)
				return;
			if (e.keyCode != DWT.CONTROL
				&& (e.stateMask & DWT.CONTROL) != 0)
				return;
			if (e.keyCode != DWT.SHIFT && (e.stateMask & DWT.SHIFT) != 0)
				return;

			TableItem[] selection = table.getSelection();
			TableItem row = (selection.length == 0) ? table.getItem(table.getTopIndex()) : selection[0];
			table.showItem(row);
			cursor.setSelection(row, 0);
			cursor.setVisible(true);
			cursor.setFocus();
		}
	});

	shell.open();
	while (!shell.isDisposed()) {
		if (!display.readAndDispatch())
			display.sleep();
	}
	display.dispose();
}
}