2 * Jexer - Java Text User Interface
4 * The MIT License (MIT)
6 * Copyright (C) 2019 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 java
.util
.ResourceBundle
;
33 import jexer
.TApplication
;
34 import jexer
.TKeypress
;
37 import jexer
.bits
.CellAttributes
;
38 import jexer
.bits
.GraphicsChars
;
39 import jexer
.bits
.MnemonicString
;
40 import jexer
.bits
.StringUtils
;
41 import jexer
.event
.TKeypressEvent
;
42 import jexer
.event
.TMouseEvent
;
43 import static jexer
.TKeypress
.*;
46 * TMenu is a top-level collection of TMenuItems.
48 public class TMenu
extends TWindow
{
53 private static final ResourceBundle i18n
= ResourceBundle
.getBundle(TMenu
.class.getName());
55 // ------------------------------------------------------------------------
56 // Constants --------------------------------------------------------------
57 // ------------------------------------------------------------------------
59 // Reserved menu item IDs
60 public static final int MID_UNUSED
= -1;
63 public static final int MID_REPAINT
= 1;
64 public static final int MID_VIEW_IMAGE
= 2;
65 public static final int MID_SCREEN_OPTIONS
= 3;
68 public static final int MID_NEW
= 10;
69 public static final int MID_EXIT
= 11;
70 public static final int MID_QUIT
= MID_EXIT
;
71 public static final int MID_OPEN_FILE
= 12;
72 public static final int MID_SHELL
= 13;
75 public static final int MID_CUT
= 20;
76 public static final int MID_COPY
= 21;
77 public static final int MID_PASTE
= 22;
78 public static final int MID_CLEAR
= 23;
81 public static final int MID_FIND
= 30;
82 public static final int MID_REPLACE
= 31;
83 public static final int MID_SEARCH_AGAIN
= 32;
84 public static final int MID_GOTO_LINE
= 33;
87 public static final int MID_TILE
= 40;
88 public static final int MID_CASCADE
= 41;
89 public static final int MID_CLOSE_ALL
= 42;
90 public static final int MID_WINDOW_MOVE
= 43;
91 public static final int MID_WINDOW_ZOOM
= 44;
92 public static final int MID_WINDOW_NEXT
= 45;
93 public static final int MID_WINDOW_PREVIOUS
= 46;
94 public static final int MID_WINDOW_CLOSE
= 47;
97 public static final int MID_HELP_CONTENTS
= 50;
98 public static final int MID_HELP_INDEX
= 51;
99 public static final int MID_HELP_SEARCH
= 52;
100 public static final int MID_HELP_PREVIOUS
= 53;
101 public static final int MID_HELP_HELP
= 54;
102 public static final int MID_HELP_ACTIVE_FILE
= 55;
103 public static final int MID_ABOUT
= 56;
106 public static final int MID_TABLE_RENAME_ROW
= 60;
107 public static final int MID_TABLE_RENAME_COLUMN
= 61;
108 public static final int MID_TABLE_VIEW_ROW_LABELS
= 70;
109 public static final int MID_TABLE_VIEW_COLUMN_LABELS
= 71;
110 public static final int MID_TABLE_VIEW_HIGHLIGHT_ROW
= 72;
111 public static final int MID_TABLE_VIEW_HIGHLIGHT_COLUMN
= 73;
112 public static final int MID_TABLE_BORDER_NONE
= 80;
113 public static final int MID_TABLE_BORDER_ALL
= 81;
114 public static final int MID_TABLE_BORDER_CELL_NONE
= 82;
115 public static final int MID_TABLE_BORDER_CELL_ALL
= 83;
116 public static final int MID_TABLE_BORDER_RIGHT
= 84;
117 public static final int MID_TABLE_BORDER_LEFT
= 85;
118 public static final int MID_TABLE_BORDER_TOP
= 86;
119 public static final int MID_TABLE_BORDER_BOTTOM
= 87;
120 public static final int MID_TABLE_BORDER_DOUBLE_BOTTOM
= 88;
121 public static final int MID_TABLE_BORDER_THICK_BOTTOM
= 89;
122 public static final int MID_TABLE_DELETE_LEFT
= 100;
123 public static final int MID_TABLE_DELETE_UP
= 101;
124 public static final int MID_TABLE_DELETE_ROW
= 102;
125 public static final int MID_TABLE_DELETE_COLUMN
= 103;
126 public static final int MID_TABLE_INSERT_LEFT
= 104;
127 public static final int MID_TABLE_INSERT_RIGHT
= 105;
128 public static final int MID_TABLE_INSERT_ABOVE
= 106;
129 public static final int MID_TABLE_INSERT_BELOW
= 107;
130 public static final int MID_TABLE_COLUMN_NARROW
= 110;
131 public static final int MID_TABLE_COLUMN_WIDEN
= 111;
132 public static final int MID_TABLE_FILE_OPEN_CSV
= 115;
133 public static final int MID_TABLE_FILE_SAVE_CSV
= 116;
134 public static final int MID_TABLE_FILE_SAVE_TEXT
= 117;
136 // ------------------------------------------------------------------------
137 // Variables --------------------------------------------------------------
138 // ------------------------------------------------------------------------
141 * If true, this is a sub-menu. Note package private access.
143 boolean isSubMenu
= false;
146 * The X position of the menu's title.
151 * The shortcut and title.
153 private MnemonicString mnemonic
;
156 * If true, draw icons with menu items. Note package private access.
158 boolean useIcons
= false;
160 // ------------------------------------------------------------------------
161 // Constructors -----------------------------------------------------------
162 // ------------------------------------------------------------------------
165 * Public constructor.
167 * @param parent parent application
168 * @param x column relative to parent
169 * @param y row relative to parent
170 * @param label mnemonic menu title. Label must contain a keyboard
171 * shortcut (mnemonic), denoted by prefixing a letter with "&",
174 public TMenu(final TApplication parent
, final int x
, final int y
,
175 final String label
) {
177 super(parent
, label
, x
, y
, parent
.getScreen().getWidth(),
178 parent
.getScreen().getHeight());
180 // Setup the menu shortcut
181 mnemonic
= new MnemonicString(label
);
182 setTitle(mnemonic
.getRawLabel());
183 assert (mnemonic
.getShortcutIdx() >= 0);
185 // Recompute width and height to reflect an empty menu
186 setWidth(StringUtils
.width(getTitle()) + 4);
191 if (System
.getProperty("jexer.menuIcons", "false").equals("true")) {
197 // ------------------------------------------------------------------------
198 // Event handlers ---------------------------------------------------------
199 // ------------------------------------------------------------------------
202 * Handle mouse button presses.
204 * @param mouse mouse button event
207 public void onMouseDown(final TMouseEvent mouse
) {
209 super.onMouseDown(mouse
);
212 for (TWidget widget
: getChildren()) {
213 if (widget
.mouseWouldHit(mouse
)) {
214 // Dispatch to this child, also activate it
217 // Set x and y relative to the child's coordinates
218 mouse
.setX(mouse
.getAbsoluteX() - widget
.getAbsoluteX());
219 mouse
.setY(mouse
.getAbsoluteY() - widget
.getAbsoluteY());
220 widget
.handleEvent(mouse
);
227 * Handle mouse button releases.
229 * @param mouse mouse button release event
232 public void onMouseUp(final TMouseEvent mouse
) {
236 for (TWidget widget
: getChildren()) {
237 if (widget
.mouseWouldHit(mouse
)) {
238 // Dispatch to this child, also activate it
241 // Set x and y relative to the child's coordinates
242 mouse
.setX(mouse
.getAbsoluteX() - widget
.getAbsoluteX());
243 mouse
.setY(mouse
.getAbsoluteY() - widget
.getAbsoluteY());
244 widget
.handleEvent(mouse
);
251 * Handle mouse movements.
253 * @param mouse mouse motion event
256 public void onMouseMotion(final TMouseEvent mouse
) {
259 // See if we should activate a different menu item
260 for (TWidget widget
: getChildren()) {
261 if ((mouse
.isMouse1())
262 && (widget
.mouseWouldHit(mouse
))
264 // Activate this menu item
266 if (widget
instanceof TSubMenu
) {
267 ((TSubMenu
) widget
).dispatch();
277 * @param keypress keystroke event
280 public void onKeypress(final TKeypressEvent keypress
) {
283 System.err.printf("keypress: %s active child: %s\n", keypress,
287 if (getActiveChild() != this) {
288 if (getActiveChild() instanceof TMenu
) {
289 getActiveChild().onKeypress(keypress
);
293 if (getActiveChild() instanceof TSubMenu
) {
294 TSubMenu subMenu
= (TSubMenu
) getActiveChild();
295 if (subMenu
.menu
.isActive()) {
296 subMenu
.onKeypress(keypress
);
302 if (keypress
.equals(kbEsc
)) {
303 getApplication().closeMenu();
306 if (keypress
.equals(kbDown
)) {
310 if (keypress
.equals(kbUp
)) {
314 if (keypress
.equals(kbRight
)) {
315 getApplication().switchMenu(true);
318 if (keypress
.equals(kbLeft
)) {
320 getApplication().closeSubMenu();
322 getApplication().switchMenu(false);
327 // Switch to a menuItem if it has an mnemonic
328 if (!keypress
.getKey().isFnKey()
329 && !keypress
.getKey().isAlt()
330 && !keypress
.getKey().isCtrl()) {
332 // System.err.println("Checking children for mnemonic...");
334 for (TWidget widget
: getChildren()) {
335 TMenuItem item
= (TMenuItem
) widget
;
336 if ((item
.isEnabled() == true)
337 && (item
.getMnemonic() != null)
338 && (Character
.toLowerCase(item
.getMnemonic().getShortcut())
339 == Character
.toLowerCase(keypress
.getKey().getChar()))
341 // System.err.println("activate: " + item);
343 // Send an enter keystroke to it
345 item
.handleEvent(new TKeypressEvent(kbEnter
));
351 // Dispatch the keypress to an active widget
352 for (TWidget widget
: getChildren()) {
353 if (widget
.isActive()) {
354 widget
.handleEvent(keypress
);
360 // ------------------------------------------------------------------------
361 // TWindow ----------------------------------------------------------------
362 // ------------------------------------------------------------------------
365 * Draw a top-level menu with title and menu items.
369 CellAttributes background
= getTheme().getColor("tmenu");
371 assert (isAbsoluteActive());
373 // Fill in the interior background
374 for (int i
= 0; i
< getHeight(); i
++) {
375 hLineXY(0, i
, getWidth(), ' ', background
);
385 cTopLeft
= GraphicsChars
.ULCORNER
;
386 cTopRight
= GraphicsChars
.URCORNER
;
387 cBottomLeft
= GraphicsChars
.LLCORNER
;
388 cBottomRight
= GraphicsChars
.LRCORNER
;
389 cHSide
= GraphicsChars
.SINGLE_BAR
;
391 // Place the corner characters
392 putCharXY(1, 0, cTopLeft
, background
);
393 putCharXY(getWidth() - 2, 0, cTopRight
, background
);
394 putCharXY(1, getHeight() - 1, cBottomLeft
, background
);
395 putCharXY(getWidth() - 2, getHeight() - 1, cBottomRight
, background
);
397 // Draw the box lines
398 hLineXY(1 + 1, 0, getWidth() - 4, cHSide
, background
);
399 hLineXY(1 + 1, getHeight() - 1, getWidth() - 4, cHSide
, background
);
402 drawBoxShadow(0, 0, getWidth(), getHeight());
405 // ------------------------------------------------------------------------
406 // TMenu ------------------------------------------------------------------
407 // ------------------------------------------------------------------------
410 * Set the menu title X position.
412 * @param titleX the position
414 public void setTitleX(final int titleX
) {
415 this.titleX
= titleX
;
419 * Get the menu title X position.
421 * @return the position
423 public int getTitleX() {
428 * Get the mnemonic string.
430 * @return the full mnemonic string
432 public MnemonicString
getMnemonic() {
437 * Convenience function to add a menu item.
439 * @param id menu item ID. Must be greater than 1024.
440 * @param label menu item label
441 * @return the new menu item
443 public TMenuItem
addItem(final int id
, final String label
) {
444 return addItemInternal(id
, label
, null);
448 * Convenience function to add a menu item.
450 * @param id menu item ID. Must be greater than 1024.
451 * @param label menu item label
452 * @param enabled default state for enabled
453 * @return the new menu item
455 public TMenuItem
addItem(final int id
, final String label
,
456 final boolean enabled
) {
459 return addItemInternal(id
, label
, null, enabled
, -1);
463 * Convenience function to add a custom menu item.
465 * @param id menu item ID. Must be greater than 1024.
466 * @param label menu item label
467 * @param key global keyboard accelerator
468 * @return the new menu item
470 public TMenuItem
addItem(final int id
, final String label
,
471 final TKeypress key
) {
474 return addItemInternal(id
, label
, key
);
478 * Convenience function to add a custom menu item.
480 * @param id menu item ID. Must be greater than 1024.
481 * @param label menu item label
482 * @param key global keyboard accelerator
483 * @param enabled default state for enabled
484 * @return the new menu item
486 public TMenuItem
addItem(final int id
, final String label
,
487 final TKeypress key
, final boolean enabled
) {
489 TMenuItem item
= addItem(id
, label
, key
);
490 item
.setEnabled(enabled
);
495 * Convenience function to add a custom menu item.
497 * @param id menu item ID. Must be greater than 1024.
498 * @param label menu item label
499 * @param key global keyboard accelerator
500 * @return the new menu item
502 private TMenuItem
addItemInternal(final int id
, final String label
,
503 final TKeypress key
) {
505 return addItemInternal(id
, label
, key
, true, -1);
509 * Convenience function to add a custom menu item.
511 * @param id menu item ID. Must be greater than 1024.
512 * @param label menu item label
513 * @param key global keyboard accelerator
514 * @param enabled default state for enabled
515 * @param icon icon picture/emoji
516 * @return the new menu item
518 private TMenuItem
addItemInternal(final int id
, final String label
,
519 final TKeypress key
, final boolean enabled
, final int icon
) {
521 int newY
= getChildren().size() + 1;
522 assert (newY
< getHeight());
524 TMenuItem menuItem
= new TMenuItem(this, id
, 1, newY
, label
, icon
);
525 menuItem
.setKey(key
);
526 menuItem
.setEnabled(enabled
);
527 setHeight(getHeight() + 1);
528 if (menuItem
.getWidth() + 2 > getWidth()) {
529 setWidth(menuItem
.getWidth() + 2);
531 for (TWidget widget
: getChildren()) {
532 widget
.setWidth(getWidth() - 2);
534 getApplication().addMenuItem(menuItem
);
535 getApplication().recomputeMenuX();
541 * Convenience function to add one of the default menu items.
543 * @param id menu item ID. Must be between 0 (inclusive) and 1023
545 * @return the new menu item
547 public TMenuItem
addDefaultItem(final int id
) {
548 return addDefaultItem(id
, true);
552 * Convenience function to add one of the default menu items.
554 * @param id menu item ID. Must be between 0 (inclusive) and 1023
556 * @param enabled default state for enabled
557 * @return the new menu item
559 public TMenuItem
addDefaultItem(final int id
, final boolean enabled
) {
564 TKeypress key
= null;
566 boolean checkable
= false;
567 boolean checked
= false;
572 label
= i18n
.getString("menuRepaintDesktop");
577 label
= i18n
.getString("menuViewImage");
580 case MID_SCREEN_OPTIONS
:
581 label
= i18n
.getString("menuScreenOptions");
585 label
= i18n
.getString("menuNew");
590 label
= i18n
.getString("menuExit");
596 label
= i18n
.getString("menuShell");
601 label
= i18n
.getString("menuOpen");
607 label
= i18n
.getString("menuCut");
612 label
= i18n
.getString("menuCopy");
617 label
= i18n
.getString("menuPaste");
622 label
= i18n
.getString("menuClear");
626 label
= i18n
.getString("menuFind");
630 label
= i18n
.getString("menuReplace");
632 case MID_SEARCH_AGAIN
:
633 label
= i18n
.getString("menuSearchAgain");
637 label
= i18n
.getString("menuGotoLine");
641 label
= i18n
.getString("menuWindowTile");
644 label
= i18n
.getString("menuWindowCascade");
648 label
= i18n
.getString("menuWindowCloseAll");
650 case MID_WINDOW_MOVE
:
651 label
= i18n
.getString("menuWindowMove");
655 case MID_WINDOW_ZOOM
:
656 label
= i18n
.getString("menuWindowZoom");
660 case MID_WINDOW_NEXT
:
661 label
= i18n
.getString("menuWindowNext");
665 case MID_WINDOW_PREVIOUS
:
666 label
= i18n
.getString("menuWindowPrevious");
670 case MID_WINDOW_CLOSE
:
671 label
= i18n
.getString("menuWindowClose");
675 case MID_HELP_CONTENTS
:
676 label
= i18n
.getString("menuHelpContents");
679 label
= i18n
.getString("menuHelpIndex");
682 case MID_HELP_SEARCH
:
683 label
= i18n
.getString("menuHelpSearch");
686 case MID_HELP_PREVIOUS
:
687 label
= i18n
.getString("menuHelpPrevious");
691 label
= i18n
.getString("menuHelpHelp");
693 case MID_HELP_ACTIVE_FILE
:
694 label
= i18n
.getString("menuHelpActive");
697 label
= i18n
.getString("menuHelpAbout");
700 case MID_TABLE_RENAME_COLUMN
:
701 label
= i18n
.getString("menuTableRenameColumn");
703 case MID_TABLE_RENAME_ROW
:
704 label
= i18n
.getString("menuTableRenameRow");
706 case MID_TABLE_VIEW_ROW_LABELS
:
707 label
= i18n
.getString("menuTableViewRowLabels");
711 case MID_TABLE_VIEW_COLUMN_LABELS
:
712 label
= i18n
.getString("menuTableViewColumnLabels");
716 case MID_TABLE_VIEW_HIGHLIGHT_ROW
:
717 label
= i18n
.getString("menuTableViewHighlightRow");
721 case MID_TABLE_VIEW_HIGHLIGHT_COLUMN
:
722 label
= i18n
.getString("menuTableViewHighlightColumn");
727 case MID_TABLE_BORDER_NONE
:
728 label
= i18n
.getString("menuTableBorderNone");
730 case MID_TABLE_BORDER_ALL
:
731 label
= i18n
.getString("menuTableBorderAll");
733 case MID_TABLE_BORDER_CELL_NONE
:
734 label
= i18n
.getString("menuTableBorderCellNone");
736 case MID_TABLE_BORDER_CELL_ALL
:
737 label
= i18n
.getString("menuTableBorderCellAll");
739 case MID_TABLE_BORDER_RIGHT
:
740 label
= i18n
.getString("menuTableBorderRight");
742 case MID_TABLE_BORDER_LEFT
:
743 label
= i18n
.getString("menuTableBorderLeft");
745 case MID_TABLE_BORDER_TOP
:
746 label
= i18n
.getString("menuTableBorderTop");
748 case MID_TABLE_BORDER_BOTTOM
:
749 label
= i18n
.getString("menuTableBorderBottom");
751 case MID_TABLE_BORDER_DOUBLE_BOTTOM
:
752 label
= i18n
.getString("menuTableBorderDoubleBottom");
754 case MID_TABLE_BORDER_THICK_BOTTOM
:
755 label
= i18n
.getString("menuTableBorderThickBottom");
757 case MID_TABLE_DELETE_LEFT
:
758 label
= i18n
.getString("menuTableDeleteLeft");
760 case MID_TABLE_DELETE_UP
:
761 label
= i18n
.getString("menuTableDeleteUp");
763 case MID_TABLE_DELETE_ROW
:
764 label
= i18n
.getString("menuTableDeleteRow");
766 case MID_TABLE_DELETE_COLUMN
:
767 label
= i18n
.getString("menuTableDeleteColumn");
769 case MID_TABLE_INSERT_LEFT
:
770 label
= i18n
.getString("menuTableInsertLeft");
772 case MID_TABLE_INSERT_RIGHT
:
773 label
= i18n
.getString("menuTableInsertRight");
775 case MID_TABLE_INSERT_ABOVE
:
776 label
= i18n
.getString("menuTableInsertAbove");
778 case MID_TABLE_INSERT_BELOW
:
779 label
= i18n
.getString("menuTableInsertBelow");
781 case MID_TABLE_COLUMN_NARROW
:
782 label
= i18n
.getString("menuTableColumnNarrow");
785 case MID_TABLE_COLUMN_WIDEN
:
786 label
= i18n
.getString("menuTableColumnWiden");
789 case MID_TABLE_FILE_OPEN_CSV
:
790 label
= i18n
.getString("menuTableFileOpenCsv");
792 case MID_TABLE_FILE_SAVE_CSV
:
793 label
= i18n
.getString("menuTableFileSaveCsv");
795 case MID_TABLE_FILE_SAVE_TEXT
:
796 label
= i18n
.getString("menuTableFileSaveText");
800 throw new IllegalArgumentException("Invalid menu ID: " + id
);
803 TMenuItem item
= addItemInternal(id
, label
, key
, enabled
, icon
);
804 item
.setCheckable(checkable
);
809 * Convenience function to add a menu separator.
811 public void addSeparator() {
812 int newY
= getChildren().size() + 1;
813 assert (newY
< getHeight());
815 // We just have to construct it, don't need to hang onto what it
817 new TMenuSeparator(this, 1, newY
);
818 setHeight(getHeight() + 1);
822 * Convenience function to add a sub-menu.
824 * @param title menu title. Title must contain a keyboard shortcut,
825 * denoted by prefixing a letter with "&", e.g. "&File"
826 * @return the new sub-menu
828 public TSubMenu
addSubMenu(final String title
) {
829 int newY
= getChildren().size() + 1;
830 assert (newY
< getHeight());
832 TSubMenu subMenu
= new TSubMenu(this, title
, 1, newY
);
833 setHeight(getHeight() + 1);
834 if (subMenu
.getWidth() + 2 > getWidth()) {
835 setWidth(subMenu
.getWidth() + 2);
837 for (TWidget widget
: getChildren()) {
838 widget
.setWidth(getWidth() - 2);
840 getApplication().recomputeMenuX();
842 subMenu
.menu
.setX(getX() + getWidth() - 2);