+++ /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.bits.MnemonicString;
-import jexer.bits.StringUtils;
-import jexer.event.TKeypressEvent;
-import jexer.event.TMouseEvent;
-import jexer.event.TMenuEvent;
-import static jexer.TKeypress.*;
-
-/**
- * TMenuItem implements a menu item.
- */
-public class TMenuItem extends TWidget {
-
- // ------------------------------------------------------------------------
- // Variables --------------------------------------------------------------
- // ------------------------------------------------------------------------
-
- /**
- * Label for this menu item.
- */
- private String label;
-
- /**
- * Menu ID. IDs less than 1024 are reserved for common system
- * functions. Existing ones are defined in TMenu, i.e. TMenu.MID_EXIT.
- */
- private int id = TMenu.MID_UNUSED;
-
- /**
- * When true, this item can be checked or unchecked.
- */
- private boolean checkable = false;
-
- /**
- * When true, this item is checked.
- */
- private boolean checked = false;
-
- /**
- * Global shortcut key.
- */
- private TKeypress key;
-
- /**
- * The title string. Use '&' to specify a mnemonic, i.e. "&File" will
- * highlight the 'F' and allow 'f' or 'F' to select it.
- */
- private MnemonicString mnemonic;
-
- // ------------------------------------------------------------------------
- // Constructors -----------------------------------------------------------
- // ------------------------------------------------------------------------
-
- /**
- * Package private constructor.
- *
- * @param parent parent widget
- * @param id menu id
- * @param x column relative to parent
- * @param y row relative to parent
- * @param label menu item title
- */
- TMenuItem(final TMenu parent, final int id, final int x, final int y,
- final String label) {
-
- // Set parent and window
- super(parent);
-
- mnemonic = new MnemonicString(label);
-
- setX(x);
- setY(y);
- setHeight(1);
- this.label = mnemonic.getRawLabel();
- setWidth(StringUtils.width(label) + 4);
- this.id = id;
-
- // Default state for some known menu items
- switch (id) {
-
- case TMenu.MID_CUT:
- setEnabled(false);
- break;
- case TMenu.MID_COPY:
- setEnabled(false);
- break;
- case TMenu.MID_PASTE:
- setEnabled(false);
- break;
- case TMenu.MID_CLEAR:
- setEnabled(false);
- break;
-
- case TMenu.MID_TILE:
- break;
- case TMenu.MID_CASCADE:
- break;
- case TMenu.MID_CLOSE_ALL:
- break;
- case TMenu.MID_WINDOW_MOVE:
- break;
- case TMenu.MID_WINDOW_ZOOM:
- break;
- case TMenu.MID_WINDOW_NEXT:
- break;
- case TMenu.MID_WINDOW_PREVIOUS:
- break;
- case TMenu.MID_WINDOW_CLOSE:
- break;
- default:
- break;
- }
-
- }
-
- // ------------------------------------------------------------------------
- // Event handlers ---------------------------------------------------------
- // ------------------------------------------------------------------------
-
- /**
- * Returns true if the mouse is currently on the menu item.
- *
- * @param mouse mouse event
- * @return if true then the mouse is currently on this item
- */
- private boolean mouseOnMenuItem(final TMouseEvent mouse) {
- if ((mouse.getY() == 0)
- && (mouse.getX() >= 0)
- && (mouse.getX() < getWidth())
- ) {
- return true;
- }
- return false;
- }
-
- /**
- * Handle mouse button releases.
- *
- * @param mouse mouse button release event
- */
- @Override
- public void onMouseUp(final TMouseEvent mouse) {
- if ((mouseOnMenuItem(mouse)) && (mouse.isMouse1())) {
- dispatch();
- return;
- }
- }
-
- /**
- * Handle keystrokes.
- *
- * @param keypress keystroke event
- */
- @Override
- public void onKeypress(final TKeypressEvent keypress) {
- if (keypress.equals(kbEnter)) {
- dispatch();
- return;
- }
-
- // Pass to parent for the things we don't care about.
- super.onKeypress(keypress);
- }
-
- // ------------------------------------------------------------------------
- // TWidget ----------------------------------------------------------------
- // ------------------------------------------------------------------------
-
- /**
- * Draw a menu item with label.
- */
- @Override
- public void draw() {
- CellAttributes background = getTheme().getColor("tmenu");
- CellAttributes menuColor;
- CellAttributes menuMnemonicColor;
- if (isAbsoluteActive()) {
- menuColor = getTheme().getColor("tmenu.highlighted");
- menuMnemonicColor = getTheme().getColor("tmenu.mnemonic.highlighted");
- } else {
- if (isEnabled()) {
- menuColor = getTheme().getColor("tmenu");
- menuMnemonicColor = getTheme().getColor("tmenu.mnemonic");
- } else {
- menuColor = getTheme().getColor("tmenu.disabled");
- menuMnemonicColor = getTheme().getColor("tmenu.disabled");
- }
- }
-
- char cVSide = GraphicsChars.WINDOW_SIDE;
- vLineXY(0, 0, 1, cVSide, background);
- vLineXY(getWidth() - 1, 0, 1, cVSide, background);
-
- hLineXY(1, 0, getWidth() - 2, ' ', menuColor);
- putStringXY(2, 0, mnemonic.getRawLabel(), menuColor);
- if (key != null) {
- String keyLabel = key.toString();
- putStringXY((getWidth() - StringUtils.width(keyLabel) - 2), 0,
- keyLabel, menuColor);
- }
- if (mnemonic.getScreenShortcutIdx() >= 0) {
- putCharXY(2 + mnemonic.getScreenShortcutIdx(), 0,
- mnemonic.getShortcut(), menuMnemonicColor);
- }
- if (checked) {
- assert (checkable);
- putCharXY(1, 0, GraphicsChars.CHECK, menuColor);
- }
-
- }
-
- // ------------------------------------------------------------------------
- // TMenuItem --------------------------------------------------------------
- // ------------------------------------------------------------------------
-
- /**
- * Get the menu item ID.
- *
- * @return the id
- */
- public final int getId() {
- return id;
- }
-
- /**
- * Set checkable flag.
- *
- * @param checkable if true, this menu item can be checked/unchecked
- */
- public final void setCheckable(final boolean checkable) {
- this.checkable = checkable;
- }
-
- /**
- * Get checkable flag.
- *
- * @return true if this menu item is both checkable and checked
- */
- public final boolean getChecked() {
- return ((checkable == true) && (checked == true));
- }
-
- /**
- * Set checked flag. Note that setting checked on an item checkable will
- * do nothing.
- *
- * @param checked if true, and if this menu item is checkable, then
- * getChecked() will return true
- */
- public final void setChecked(final boolean checked) {
- if (checkable) {
- this.checked = checked;
- } else {
- this.checked = false;
- }
- }
-
- /**
- * Get the mnemonic string for this menu item.
- *
- * @return mnemonic string
- */
- public final MnemonicString getMnemonic() {
- return mnemonic;
- }
-
- /**
- * Get a global accelerator key for this menu item.
- *
- * @return global keyboard accelerator, or null if no key is associated
- * with this item
- */
- public final TKeypress getKey() {
- return key;
- }
-
- /**
- * Set a global accelerator key for this menu item.
- *
- * @param key global keyboard accelerator
- */
- public final void setKey(final TKeypress key) {
- this.key = key;
-
- if (key != null) {
- int newWidth = (StringUtils.width(label) + 4 +
- StringUtils.width(key.toString()) + 2);
- if (newWidth > getWidth()) {
- setWidth(newWidth);
- }
- }
- }
-
- /**
- * Dispatch event(s) due to selection or click.
- */
- public void dispatch() {
- assert (isEnabled());
-
- getApplication().postMenuEvent(new TMenuEvent(id));
- if (checkable) {
- checked = !checked;
- }
- }
-
-}
git://git.nikiroo.be / fanfix.git / blobdiff