--- /dev/null
+/*
+ * Jexer - Java Text User Interface
+ *
+ * The MIT License (MIT)
+ *
+ * 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"),
+ * 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:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * 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
+ */
+package jexer.menu;
+
+import jexer.TKeypress;
+import jexer.TWidget;
+import jexer.bits.CellAttributes;
+import jexer.bits.GraphicsChars;
+import jexer.event.TKeypressEvent;
+import static jexer.TKeypress.*;
+
+/**
+ * TSubMenu is a special case menu item that wraps another TMenu.
+ */
+public class TSubMenu extends TMenuItem {
+
+ // ------------------------------------------------------------------------
+ // Variables --------------------------------------------------------------
+ // ------------------------------------------------------------------------
+
+ /**
+ * The menu window. Note package private access.
+ */
+ TMenu menu;
+
+ // ------------------------------------------------------------------------
+ // Constructors -----------------------------------------------------------
+ // ------------------------------------------------------------------------
+
+ /**
+ * Package private constructor.
+ *
+ * @param parent parent widget
+ * @param title menu title. Title must contain a keyboard shortcut,
+ * denoted by prefixing a letter with "&", e.g. "&File"
+ * @param x column relative to parent
+ * @param y row relative to parent
+ */
+ TSubMenu(final TMenu parent, final String title, final int x, final int y) {
+ super(parent, TMenu.MID_UNUSED, x, y, title);
+
+ setActive(false);
+ setEnabled(true);
+
+ this.menu = new TMenu(parent.getApplication(), x, getAbsoluteY() - 1,
+ title);
+ setWidth(menu.getWidth() + 2);
+
+ this.menu.isSubMenu = true;
+ }
+
+ // ------------------------------------------------------------------------
+ // Event handlers ---------------------------------------------------------
+ // ------------------------------------------------------------------------
+
+ /**
+ * Handle keystrokes.
+ *
+ * @param keypress keystroke event
+ */
+ @Override
+ public void onKeypress(final TKeypressEvent keypress) {
+
+ // Open me if they hit my mnemonic.
+ if (!keypress.getKey().isFnKey()
+ && !keypress.getKey().isAlt()
+ && !keypress.getKey().isCtrl()
+ && (getMnemonic() != null)
+ && (Character.toLowerCase(getMnemonic().getShortcut())
+ == Character.toLowerCase(keypress.getKey().getChar()))
+ ) {
+ dispatch();
+ return;
+ }
+
+ if (menu.isActive()) {
+ menu.onKeypress(keypress);
+ return;
+ }
+
+ if (keypress.equals(kbEnter)) {
+ dispatch();
+ return;
+ }
+
+ if (keypress.equals(kbRight)) {
+ dispatch();
+ return;
+ }
+
+ if (keypress.equals(kbDown)) {
+ getParent().switchWidget(true);
+ return;
+ }
+
+ if (keypress.equals(kbUp)) {
+ getParent().switchWidget(false);
+ return;
+ }
+
+ if (keypress.equals(kbLeft)) {
+ TMenu parentMenu = (TMenu) getParent();
+ if (parentMenu.isSubMenu) {
+ getApplication().closeSubMenu();
+ } else {
+ getApplication().switchMenu(false);
+ }
+ return;
+ }
+
+ if (keypress.equals(kbEsc)) {
+ getApplication().closeMenu();
+ return;
+ }
+ }
+
+ // ------------------------------------------------------------------------
+ // TMenuItem --------------------------------------------------------------
+ // ------------------------------------------------------------------------
+
+ /**
+ * Draw the menu title.
+ */
+ @Override
+ public void draw() {
+ super.draw();
+
+ CellAttributes menuColor;
+ if (isAbsoluteActive()) {
+ menuColor = getTheme().getColor("tmenu.highlighted");
+ } else {
+ if (isEnabled()) {
+ menuColor = getTheme().getColor("tmenu");
+ } else {
+ menuColor = getTheme().getColor("tmenu.disabled");
+ }
+ }
+
+ // Add the arrow
+ putCharXY(getWidth() - 2, 0, GraphicsChars.CP437[0x10], menuColor);
+ }
+
+ /**
+ * Override dispatch() to do nothing.
+ */
+ @Override
+ public void dispatch() {
+ assert (isEnabled());
+ if (isAbsoluteActive()) {
+ if (!menu.isActive()) {
+ getApplication().addSubMenu(menu);
+ menu.setActive(true);
+ }
+ }
+ }
+
+ /**
+ * Returns my active widget.
+ *
+ * @return widget that is active, or this if no children
+ */
+ @Override
+ public TWidget getActiveChild() {
+ if (menu.isActive()) {
+ return menu;
+ }
+ // Menu not active, return me
+ return this;
+ }
+
+ // ------------------------------------------------------------------------
+ // TSubMenu ---------------------------------------------------------------
+ // ------------------------------------------------------------------------
+
+ /**
+ * Convenience function to add a custom menu item.
+ *
+ * @param id menu item ID. Must be greater than 1024.
+ * @param label menu item label
+ * @param key global keyboard accelerator
+ * @return the new menu item
+ */
+ public TMenuItem addItem(final int id, final String label,
+ final TKeypress key) {
+
+ return menu.addItem(id, label, key);
+ }
+
+ /**
+ * Convenience function to add a menu item.
+ *
+ * @param id menu item ID. Must be greater than 1024.
+ * @param label menu item label
+ * @return the new menu item
+ */
+ public TMenuItem addItem(final int id, final String label) {
+ return menu.addItem(id, label);
+ }
+
+ /**
+ * Convenience function to add one of the default menu items.
+ *
+ * @param id menu item ID. Must be between 0 (inclusive) and 1023
+ * (inclusive).
+ * @return the new menu item
+ */
+ public TMenuItem addDefaultItem(final int id) {
+ return menu.addDefaultItem(id);
+ }
+
+ /**
+ * Convenience function to add one of the default menu items.
+ *
+ * @param id menu item ID. Must be between 0 (inclusive) and 1023
+ * (inclusive).
+ * @param enabled default state for enabled
+ * @return the new menu item
+ */
+ public TMenuItem addDefaultItem(final int id, final boolean enabled) {
+ return menu.addDefaultItem(id, enabled);
+ }
+
+ /**
+ * Convenience function to add a menu separator.
+ */
+ public void addSeparator() {
+ menu.addSeparator();
+ }
+
+ /**
+ * Convenience function to add a sub-menu.
+ *
+ * @param title menu title. Title must contain a keyboard shortcut,
+ * denoted by prefixing a letter with "&", e.g. "&File"
+ * @return the new sub-menu
+ */
+ public TSubMenu addSubMenu(final String title) {
+ return menu.addSubMenu(title);
+ }
+
+}
git://git.nikiroo.be / fanfix.git / blobdiff