+/**
+ * Jexer - Java Text User Interface
+ *
+ * License: LGPLv3 or later
+ *
+ * This module is licensed under the GNU Lesser General Public License
+ * Version 3. Please see the file "COPYING" in this directory for more
+ * information about the GNU Lesser General Public License Version 3.
+ *
+ * Copyright (C) 2015 Kevin Lamonte
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, see
+ * http://www.gnu.org/licenses/, or write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ *
+ * @author Kevin Lamonte [kevin.lamonte@gmail.com]
+ * @version 1
+ */
+package jexer;
+
+import jexer.bits.CellAttributes;
+import jexer.bits.GraphicsChars;
+import jexer.event.TKeypressEvent;
+import jexer.event.TMouseEvent;
+import static jexer.TKeypress.*;
+
+/**
+ * TCheckbox implements an on/off checkbox.
+ */
+public final class TCheckbox extends TWidget {
+
+ /**
+ * Checkbox state, true means checked.
+ */
+ private boolean checked = false;
+
+ /**
+ * Label for this checkbox.
+ */
+ private String label;
+
+ /**
+ * Public constructor.
+ *
+ * @param parent parent widget
+ * @param x column relative to parent
+ * @param y row relative to parent
+ * @param label label to display next to (right of) the checkbox
+ * @param checked initial check state
+ */
+ public TCheckbox(final TWidget parent, final int x, final int y,
+ final String label, final boolean checked) {
+
+ // Set parent and window
+ super(parent);
+
+ setX(x);
+ setY(y);
+ setHeight(1);
+ this.label = label;
+ setWidth(label.length() + 4);
+ this.checked = checked;
+
+ setHasCursor(true);
+ setCursorX(1);
+ }
+
+ /**
+ * Returns true if the mouse is currently on the checkbox.
+ *
+ * @param mouse mouse event
+ * @return true if the mouse is currently on the checkbox
+ */
+ private boolean mouseOnCheckbox(final TMouseEvent mouse) {
+ if ((mouse != null)
+ && (mouse.getY() == 0)
+ && (mouse.getX() >= 0)
+ && (mouse.getX() <= 2)
+ ) {
+ return true;
+ }
+ return false;
+ }
+
+ /**
+ * Draw a checkbox with label.
+ */
+ @Override
+ public void draw() {
+ CellAttributes checkboxColor;
+
+ if (getAbsoluteActive()) {
+ checkboxColor = getTheme().getColor("tcheckbox.active");
+ } else {
+ checkboxColor = getTheme().getColor("tcheckbox.inactive");
+ }
+
+ getScreen().putCharXY(0, 0, '[', checkboxColor);
+ if (checked) {
+ getScreen().putCharXY(1, 0, GraphicsChars.CHECK, checkboxColor);
+ } else {
+ getScreen().putCharXY(1, 0, ' ', checkboxColor);
+ }
+ getScreen().putCharXY(2, 0, ']', checkboxColor);
+ getScreen().putStrXY(4, 0, label, checkboxColor);
+ }
+
+ /**
+ * Handle mouse checkbox presses.
+ *
+ * @param mouse mouse button down event
+ */
+ @Override
+ public void onMouseDown(final TMouseEvent mouse) {
+ if ((mouseOnCheckbox(mouse)) && (mouse.getMouse1())) {
+ // Switch state
+ checked = !checked;
+ }
+ }
+
+ /**
+ * Handle keystrokes.
+ *
+ * @param keypress keystroke event
+ */
+ @Override
+ public void onKeypress(final TKeypressEvent keypress) {
+ if (keypress.equals(kbSpace)) {
+ checked = !checked;
+ return;
+ }
+
+ // Pass to parent for the things we don't care about.
+ super.onKeypress(keypress);
+ }
+
+}
git://git.nikiroo.be / fanfix.git / commitdiff