2 * Jexer - Java Text User Interface
4 * The MIT License (MIT)
6 * Copyright (C) 2017 Kevin Lamonte
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
15 * The above copyright notice and this permission notice shall be included in
16 * all copies or substantial portions of the Software.
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
22 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
23 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
24 * DEALINGS IN THE SOFTWARE.
26 * @author Kevin Lamonte [kevin.lamonte@gmail.com]
31 import jexer
.bits
.CellAttributes
;
32 import jexer
.bits
.GraphicsChars
;
33 import jexer
.event
.TKeypressEvent
;
34 import jexer
.event
.TMouseEvent
;
35 import static jexer
.TKeypress
.*;
38 * TRadioButton implements a selectable radio button.
40 public class TRadioButton
extends TWidget
{
42 // ------------------------------------------------------------------------
43 // Variables --------------------------------------------------------------
44 // ------------------------------------------------------------------------
47 * RadioButton state, true means selected.
49 private boolean selected
= false;
52 * Label for this radio button.
57 * ID for this radio button. Buttons start counting at 1 in the
62 // ------------------------------------------------------------------------
63 // Constructors -----------------------------------------------------------
64 // ------------------------------------------------------------------------
69 * @param parent parent widget
70 * @param x column relative to parent
71 * @param y row relative to parent
72 * @param label label to display next to (right of) the radiobutton
73 * @param id ID for this radio button
75 public TRadioButton(final TRadioGroup parent
, final int x
, final int y
,
76 final String label
, final int id
) {
78 // Set parent and window
79 super(parent
, x
, y
, label
.length() + 4, 1);
84 setCursorVisible(true);
88 // ------------------------------------------------------------------------
89 // Event handlers ---------------------------------------------------------
90 // ------------------------------------------------------------------------
93 * Returns true if the mouse is currently on the radio button.
95 * @param mouse mouse event
96 * @return if true the mouse is currently on the radio button
98 private boolean mouseOnRadioButton(final TMouseEvent mouse
) {
99 if ((mouse
.getY() == 0)
100 && (mouse
.getX() >= 0)
101 && (mouse
.getX() <= 2)
109 * Handle mouse button presses.
111 * @param mouse mouse button press event
114 public void onMouseDown(final TMouseEvent mouse
) {
115 if ((mouseOnRadioButton(mouse
)) && (mouse
.isMouse1())) {
117 selected
= !selected
;
119 ((TRadioGroup
) getParent()).setSelected(this);
127 * @param keypress keystroke event
130 public void onKeypress(final TKeypressEvent keypress
) {
132 if (keypress
.equals(kbSpace
)) {
133 selected
= !selected
;
135 ((TRadioGroup
) getParent()).setSelected(this);
140 // Pass to parent for the things we don't care about.
141 super.onKeypress(keypress
);
144 // ------------------------------------------------------------------------
145 // TWidget ----------------------------------------------------------------
146 // ------------------------------------------------------------------------
149 * Draw a radio button with label.
153 CellAttributes radioButtonColor
;
155 if (isAbsoluteActive()) {
156 radioButtonColor
= getTheme().getColor("tradiobutton.active");
158 radioButtonColor
= getTheme().getColor("tradiobutton.inactive");
161 getScreen().putCharXY(0, 0, '(', radioButtonColor
);
163 getScreen().putCharXY(1, 0, GraphicsChars
.CP437
[0x07],
166 getScreen().putCharXY(1, 0, ' ', radioButtonColor
);
168 getScreen().putCharXY(2, 0, ')', radioButtonColor
);
169 getScreen().putStringXY(4, 0, label
, radioButtonColor
);
172 // ------------------------------------------------------------------------
173 // TRadioButton -----------------------------------------------------------
174 // ------------------------------------------------------------------------
177 * Get RadioButton state, true means selected.
179 * @return if true then this is the one button in the group that is
182 public boolean isSelected() {
187 * Set RadioButton state, true means selected. Note package private
190 * @param selected if true then this is the one button in the group that
193 void setSelected(final boolean selected
) {
194 this.selected
= selected
;
198 * Get ID for this radio button. Buttons start counting at 1 in the