--- a/src/de/uapcore/sudoku/SudokuTextField.java Fri Feb 01 10:18:47 2013 +0100 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,138 +0,0 @@ -/* - * Copyright 2013 Mike Becker. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" - * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE - * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -package de.uapcore.sudoku; - -import java.awt.Color; -import java.awt.Dimension; -import java.awt.Font; -import java.awt.event.FocusAdapter; -import java.awt.event.FocusEvent; -import java.awt.event.KeyAdapter; -import java.awt.event.KeyEvent; -import javax.swing.JTextField; - -/** - * - * @author mike - */ -public final class SudokuTextField extends JTextField { - - private boolean modified; - - public SudokuTextField() { - setBorder(null); - setBackground(Color.WHITE); - - setFont(new Font("Dialog", Font.PLAIN, 18)); - setHorizontalAlignment(JTextField.CENTER); - - Dimension dim = new Dimension(40,40); - setPreferredSize(dim); - setMinimumSize(dim); - setMaximumSize(dim); - - addKeyListener(new KeyAdapter() { - private void handle(KeyEvent e) { - char c = e.getKeyChar(); - if (!e.isAltDown() && !e.isControlDown() && - !Character.isISOControl(c)) { - // Perform clean input check - if (getText().length() > 0 && getSelectedText() == null) { - if (c != KeyEvent.CHAR_UNDEFINED) { - e.consume(); - } - } else { - if (c < '1' || c > '9') { - e.consume(); - } else { - setModified(true); - } - } - } else { - // We can still be tricked by hotkeys, so do it the hard way - if (!getText().matches("^[1-9]$")) { - setText(""); - } - } - } - - @Override - public void keyPressed(KeyEvent e) { - handle(e); - } - - @Override - public void keyTyped(KeyEvent e) { - handle(e); - } - - @Override - public void keyReleased(KeyEvent e) { - handle(e); - } - - }); - addFocusListener(new FocusAdapter() { - @Override - public void focusGained(FocusEvent e) { - selectAll(); - } - @Override - public void focusLost(FocusEvent e) { - select(0, 0); - } - }); - } - - public int getValue() { - if (getText().length() > 0) { - return Integer.valueOf(getText()); - } else { - return 0; - } - } - - public void setValue(int v) { - if (v == 0) { - setText(""); - } else if (v < 10) { - setText(String.valueOf(v)); - } else { - throw new IllegalArgumentException( - "Sudoku numbers must be in range 0-9 (0 means 'not set')"); - } - } - - public void setModified(boolean modified) { - this.modified = modified; - setForeground(modified?Color.BLUE:Color.BLACK); - } - - public boolean isModified() { - return modified; - } -}