-/**
+/*
* 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.
+ * The MIT License (MIT)
*
- * Copyright (C) 2015 Kevin Lamonte
+ * Copyright (C) 2019 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.
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
*
- * 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.
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
*
- * 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
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
*
* @author Kevin Lamonte [kevin.lamonte@gmail.com]
* @version 1
/**
* TRadioGroup is a collection of TRadioButtons with a box and label.
*/
-public final class TRadioGroup extends TWidget {
+public class TRadioGroup extends TWidget {
+
+ // ------------------------------------------------------------------------
+ // Variables --------------------------------------------------------------
+ // ------------------------------------------------------------------------
/**
* Label for this radio button group.
private TRadioButton selectedButton = null;
/**
- * Get the radio button ID that was selected.
- *
- * @return ID of the selected button, or 0 if no button is selected
+ * If true, one of the children MUST be selected. Note package private
+ * access.
*/
- public int getSelected() {
- if (selectedButton == null) {
- return 0;
- }
- return selectedButton.getId();
- }
+ boolean requiresSelection = true;
- /**
- * Set the new selected radio button. Note package private access.
- *
- * @param button new button that became selected
- */
- void setSelected(final TRadioButton button) {
- assert (button.getSelected());
- if (selectedButton != null) {
- selectedButton.setSelected(false);
- }
- selectedButton = button;
- }
+ // ------------------------------------------------------------------------
+ // Constructors -----------------------------------------------------------
+ // ------------------------------------------------------------------------
/**
* Public constructor.
final String label) {
// Set parent and window
- super(parent);
+ super(parent, x, y, label.length() + 4, 2);
- setX(x);
- setY(y);
- setHeight(2);
this.label = label;
- setWidth(label.length() + 4);
}
+ // ------------------------------------------------------------------------
+ // TWidget ----------------------------------------------------------------
+ // ------------------------------------------------------------------------
+
/**
* Draw a radio button with label.
*/
public void draw() {
CellAttributes radioGroupColor;
- if (getAbsoluteActive()) {
+ if (isAbsoluteActive()) {
radioGroupColor = getTheme().getColor("tradiogroup.active");
} else {
radioGroupColor = getTheme().getColor("tradiogroup.inactive");
}
- getScreen().drawBox(0, 0, getWidth(), getHeight(),
- radioGroupColor, radioGroupColor, 3, false);
+ drawBox(0, 0, getWidth(), getHeight(), radioGroupColor, radioGroupColor,
+ 3, false);
+
+ hLineXY(1, 0, label.length() + 2, ' ', radioGroupColor);
+ putStringXY(2, 0, label, radioGroupColor);
+ }
+
+ // ------------------------------------------------------------------------
+ // TRadioGroup ------------------------------------------------------------
+ // ------------------------------------------------------------------------
+
+ /**
+ * Get the radio button ID that was selected.
+ *
+ * @return ID of the selected button, or 0 if no button is selected
+ */
+ public int getSelected() {
+ if (selectedButton == null) {
+ return 0;
+ }
+ return selectedButton.getId();
+ }
+
+ /**
+ * Set the new selected radio button. Note package private access.
+ *
+ * @param button new button that became selected
+ */
+ void setSelected(final TRadioButton button) {
+ assert (button.isSelected());
+ if ((selectedButton != null) && (selectedButton != button)) {
+ selectedButton.setSelected(false);
+ }
+ selectedButton = button;
+ }
+
+ /**
+ * Set the new selected radio button. 1-based.
+ *
+ * @param id ID of the selected button, or 0 to unselect
+ */
+ public void setSelected(final int id) {
+ if ((id < 0) || (id > getChildren().size())) {
+ return;
+ }
- getScreen().hLineXY(1, 0, label.length() + 2, ' ', radioGroupColor);
- getScreen().putStrXY(2, 0, label, radioGroupColor);
+ if (id == 0) {
+ for (TWidget widget: getChildren()) {
+ ((TRadioButton) widget).setSelected(false);
+ }
+ selectedButton = null;
+ return;
+ }
+ assert ((id > 0) && (id <= getChildren().size()));
+ TRadioButton button = (TRadioButton) (getChildren().get(id - 1));
+ button.setSelected(true);
+ selectedButton = button;
}
/**
setWidth(label.length() + 7);
}
setHeight(getChildren().size() + 3);
- return new TRadioButton(this, buttonX, buttonY, label,
+ TRadioButton button = new TRadioButton(this, buttonX, buttonY, label,
getChildren().size() + 1);
+
+ // Default to the first item on the list.
+ activate(getChildren().get(0));
+
+ return button;
}
}