*
* The MIT License (MIT)
*
- * Copyright (C) 2017 Kevin Lamonte
+ * Copyright (C) 2019 Kevin Lamonte
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
import jexer.bits.CellAttributes;
import jexer.bits.GraphicsChars;
+import jexer.bits.MnemonicString;
+import jexer.bits.StringUtils;
import jexer.event.TKeypressEvent;
import jexer.event.TMouseEvent;
import static jexer.TKeypress.*;
/**
* TRadioButton implements a selectable radio button.
+ *
+ * If the user clicks or presses space on this button, it is selected.
+ *
+ * If the user presses escape on this button, it is unselected.
*/
-public final class TRadioButton extends TWidget {
+public class TRadioButton extends TWidget {
- /**
- * RadioButton state, true means selected.
- */
- private boolean selected = false;
+ // ------------------------------------------------------------------------
+ // Variables --------------------------------------------------------------
+ // ------------------------------------------------------------------------
/**
- * Get RadioButton state, true means selected.
- *
- * @return if true then this is the one button in the group that is
- * selected
- */
- public boolean isSelected() {
- return selected;
- }
-
- /**
- * Set RadioButton state, true means selected. Note package private
- * access.
- *
- * @param selected if true then this is the one button in the group that
- * is selected
+ * RadioButton state, true means selected. Note package private access.
*/
- void setSelected(final boolean selected) {
- this.selected = selected;
- }
+ boolean selected = false;
/**
- * Label for this radio button.
+ * The shortcut and radio button label.
*/
- private String label;
+ private MnemonicString mnemonic;
/**
* ID for this radio button. Buttons start counting at 1 in the
- * RadioGroup.
+ * RadioGroup. Note package private access.
*/
- private int id;
+ int id;
- /**
- * Get ID for this radio button. Buttons start counting at 1 in the
- * RadioGroup.
- *
- * @return the ID
- */
- public int getId() {
- return id;
- }
+ // ------------------------------------------------------------------------
+ // Constructors -----------------------------------------------------------
+ // ------------------------------------------------------------------------
/**
- * Public constructor.
+ * Package private constructor.
*
* @param parent parent widget
* @param x column relative to parent
* @param label label to display next to (right of) the radiobutton
* @param id ID for this radio button
*/
- public TRadioButton(final TRadioGroup parent, final int x, final int y,
+ TRadioButton(final TRadioGroup parent, final int x, final int y,
final String label, final int id) {
// Set parent and window
- super(parent, x, y, label.length() + 4, 1);
+ super(parent, x, y, StringUtils.width(label) + 4, 1);
- this.label = label;
+ mnemonic = new MnemonicString(label);
this.id = id;
setCursorVisible(true);
setCursorX(1);
+
+ parent.addRadioButton(this);
}
+ // ------------------------------------------------------------------------
+ // Event handlers ---------------------------------------------------------
+ // ------------------------------------------------------------------------
+
/**
* Returns true if the mouse is currently on the radio button.
*
return false;
}
+ /**
+ * Handle mouse button presses.
+ *
+ * @param mouse mouse button press event
+ */
+ @Override
+ public void onMouseDown(final TMouseEvent mouse) {
+ if ((mouseOnRadioButton(mouse)) && (mouse.isMouse1())) {
+ // Switch state
+ ((TRadioGroup) getParent()).setSelected(id);
+ }
+ }
+
+ /**
+ * Handle keystrokes.
+ *
+ * @param keypress keystroke event
+ */
+ @Override
+ public void onKeypress(final TKeypressEvent keypress) {
+
+ if (keypress.equals(kbSpace)) {
+ ((TRadioGroup) getParent()).setSelected(id);
+ return;
+ }
+
+ if (keypress.equals(kbEsc)) {
+ TRadioGroup parent = (TRadioGroup) getParent();
+ if (parent.requiresSelection == false) {
+ selected = false;
+ parent.setSelected(0);
+ }
+ return;
+ }
+
+ // Pass to parent for the things we don't care about.
+ super.onKeypress(keypress);
+ }
+
+ // ------------------------------------------------------------------------
+ // TWidget ----------------------------------------------------------------
+ // ------------------------------------------------------------------------
+
+ /**
+ * Override TWidget's width: we can only set width at construction time.
+ *
+ * @param width new widget width (ignored)
+ */
+ @Override
+ public void setWidth(final int width) {
+ // Do nothing
+ }
+
+ /**
+ * Override TWidget's height: we can only set height at construction
+ * time.
+ *
+ * @param height new widget height (ignored)
+ */
+ @Override
+ public void setHeight(final int height) {
+ // Do nothing
+ }
+
/**
* Draw a radio button with label.
*/
@Override
public void draw() {
CellAttributes radioButtonColor;
+ CellAttributes mnemonicColor;
if (isAbsoluteActive()) {
radioButtonColor = getTheme().getColor("tradiobutton.active");
+ mnemonicColor = getTheme().getColor("tradiobutton.mnemonic.highlighted");
} else {
radioButtonColor = getTheme().getColor("tradiobutton.inactive");
+ mnemonicColor = getTheme().getColor("tradiobutton.mnemonic");
}
- getScreen().putCharXY(0, 0, '(', radioButtonColor);
+ putCharXY(0, 0, '(', radioButtonColor);
if (selected) {
- getScreen().putCharXY(1, 0, GraphicsChars.CP437[0x07],
- radioButtonColor);
+ putCharXY(1, 0, GraphicsChars.CP437[0x07], radioButtonColor);
} else {
- getScreen().putCharXY(1, 0, ' ', radioButtonColor);
+ putCharXY(1, 0, ' ', radioButtonColor);
+ }
+ putCharXY(2, 0, ')', radioButtonColor);
+ putStringXY(4, 0, mnemonic.getRawLabel(), radioButtonColor);
+ if (mnemonic.getScreenShortcutIdx() >= 0) {
+ putCharXY(4 + mnemonic.getScreenShortcutIdx(), 0,
+ mnemonic.getShortcut(), mnemonicColor);
}
- getScreen().putCharXY(2, 0, ')', radioButtonColor);
- getScreen().putStringXY(4, 0, label, radioButtonColor);
}
+ // ------------------------------------------------------------------------
+ // TRadioButton -----------------------------------------------------------
+ // ------------------------------------------------------------------------
+
/**
- * Handle mouse button presses.
+ * Get RadioButton state, true means selected.
*
- * @param mouse mouse button press event
+ * @return if true then this is the one button in the group that is
+ * selected
*/
- @Override
- public void onMouseDown(final TMouseEvent mouse) {
- if ((mouseOnRadioButton(mouse)) && (mouse.isMouse1())) {
- // Switch state
- selected = !selected;
- if (selected) {
- ((TRadioGroup) getParent()).setSelected(this);
- }
- }
+ public boolean isSelected() {
+ return selected;
}
/**
- * Handle keystrokes.
+ * Set RadioButton state, true means selected.
*
- * @param keypress keystroke event
+ * @param selected if true then this is the one button in the group that
+ * is selected
*/
- @Override
- public void onKeypress(final TKeypressEvent keypress) {
-
- if (keypress.equals(kbSpace)) {
- selected = !selected;
- if (selected) {
- ((TRadioGroup) getParent()).setSelected(this);
- }
- return;
+ public void setSelected(final boolean selected) {
+ if (selected == true) {
+ ((TRadioGroup) getParent()).setSelected(id);
+ } else {
+ ((TRadioGroup) getParent()).setSelected(0);
}
+ }
- // Pass to parent for the things we don't care about.
- super.onKeypress(keypress);
+ /**
+ * Get ID for this radio button. Buttons start counting at 1 in the
+ * RadioGroup.
+ *
+ * @return the ID
+ */
+ public int getId() {
+ return id;
+ }
+
+ /**
+ * Get the mnemonic string for this button.
+ *
+ * @return mnemonic string
+ */
+ public MnemonicString getMnemonic() {
+ return mnemonic;
}
}
git://git.nikiroo.be / fanfix.git / blobdiff