| 1 | /* Implements a lightweight menubar widget. |
| 2 | Copyright (C) 1992 Lucid, Inc. |
| 3 | Copyright (C) 2002 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of the Lucid Widget Library. |
| 6 | |
| 7 | The Lucid Widget Library is free software; you can redistribute it and/or |
| 8 | modify it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 2, or (at your option) |
| 10 | any later version. |
| 11 | |
| 12 | The Lucid Widget Library is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with GNU Emacs; see the file COPYING. If not, write to the |
| 19 | Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| 20 | Boston, MA 02111-1307, USA. */ |
| 21 | |
| 22 | /* Created by devin@lucid.com */ |
| 23 | |
| 24 | #ifdef HAVE_CONFIG_H |
| 25 | #include <config.h> |
| 26 | #endif |
| 27 | |
| 28 | #include "../src/lisp.h" |
| 29 | |
| 30 | #include <stdio.h> |
| 31 | |
| 32 | #include <sys/types.h> |
| 33 | #if (defined __sun) && !(defined SUNOS41) |
| 34 | #define SUNOS41 |
| 35 | #include <X11/Xos.h> |
| 36 | #undef SUNOS41 |
| 37 | #else |
| 38 | #include <X11/Xos.h> |
| 39 | #endif |
| 40 | #include <X11/IntrinsicP.h> |
| 41 | #include <X11/ObjectP.h> |
| 42 | #include <X11/StringDefs.h> |
| 43 | #include <X11/cursorfont.h> |
| 44 | #include "xlwmenuP.h" |
| 45 | |
| 46 | #ifdef emacs |
| 47 | |
| 48 | /* Defined in xfns.c. When config.h defines `static' as empty, we get |
| 49 | redefinition errors when gray_bitmap is included more than once, so |
| 50 | we're referring to the one include in xfns.c here. */ |
| 51 | |
| 52 | extern int gray_bitmap_width; |
| 53 | extern int gray_bitmap_height; |
| 54 | extern char *gray_bitmap_bits; |
| 55 | |
| 56 | /* Defined in xterm.c. */ |
| 57 | extern int x_alloc_nearest_color_for_widget __P ((Widget, Colormap, XColor*)); |
| 58 | extern int x_alloc_lighter_color_for_widget __P ((Widget, Display*, Colormap, |
| 59 | unsigned long *, |
| 60 | double, int)); |
| 61 | extern int x_catch_errors __P ((Display*)); |
| 62 | extern int x_uncatch_errors __P ((Display*, int)); |
| 63 | extern int x_had_errors_p __P ((Display*)); |
| 64 | extern int x_clear_errors __P ((Display*)); |
| 65 | extern unsigned long x_copy_dpy_color __P ((Display *, Colormap, |
| 66 | unsigned long)); |
| 67 | |
| 68 | /* Defined in xfaces.c. */ |
| 69 | extern void x_free_dpy_colors __P ((Display *, Screen *, Colormap, |
| 70 | unsigned long *pixels, int npixels)); |
| 71 | #else /* not emacs */ |
| 72 | |
| 73 | #include <X11/bitmaps/gray> |
| 74 | #define gray_bitmap_width gray_width |
| 75 | #define gray_bitmap_height gray_height |
| 76 | #define gray_bitmap_bits gray_bits |
| 77 | |
| 78 | #endif /* not emacs */ |
| 79 | |
| 80 | static int pointer_grabbed; |
| 81 | static XEvent menu_post_event; |
| 82 | |
| 83 | XFontStruct *xlwmenu_default_font; |
| 84 | |
| 85 | static char |
| 86 | xlwMenuTranslations [] = |
| 87 | "<BtnDown>: start()\n\ |
| 88 | <Motion>: drag()\n\ |
| 89 | <BtnUp>: select()\n\ |
| 90 | <Key>Shift_L: nothing()\n\ |
| 91 | <Key>Shift_R: nothing()\n\ |
| 92 | <Key>Meta_L: nothing()\n\ |
| 93 | <Key>Meta_R: nothing()\n\ |
| 94 | <Key>Control_L: nothing()\n\ |
| 95 | <Key>Control_R: nothing()\n\ |
| 96 | <Key>Hyper_L: nothing()\n\ |
| 97 | <Key>Hyper_R: nothing()\n\ |
| 98 | <Key>Super_L: nothing()\n\ |
| 99 | <Key>Super_R: nothing()\n\ |
| 100 | <Key>Alt_L: nothing()\n\ |
| 101 | <Key>Alt_R: nothing()\n\ |
| 102 | <Key>Caps_Lock: nothing()\n\ |
| 103 | <Key>Shift_Lock: nothing()\n\ |
| 104 | <KeyUp>Shift_L: nothing()\n\ |
| 105 | <KeyUp>Shift_R: nothing()\n\ |
| 106 | <KeyUp>Meta_L: nothing()\n\ |
| 107 | <KeyUp>Meta_R: nothing()\n\ |
| 108 | <KeyUp>Control_L: nothing()\n\ |
| 109 | <KeyUp>Control_R: nothing()\n\ |
| 110 | <KeyUp>Hyper_L: nothing()\n\ |
| 111 | <KeyUp>Hyper_R: nothing()\n\ |
| 112 | <KeyUp>Super_L: nothing()\n\ |
| 113 | <KeyUp>Super_R: nothing()\n\ |
| 114 | <KeyUp>Alt_L: nothing()\n\ |
| 115 | <KeyUp>Alt_R: nothing()\n\ |
| 116 | <KeyUp>Caps_Lock: nothing()\n\ |
| 117 | <KeyUp>Shift_Lock:nothing()\n\ |
| 118 | <Key>Return: select()\n\ |
| 119 | <Key>Down: down()\n\ |
| 120 | <Key>Up: up()\n\ |
| 121 | <Key>Left: left()\n\ |
| 122 | <Key>Right: right()\n\ |
| 123 | <Key>: key()\n\ |
| 124 | <KeyUp>: key()\n\ |
| 125 | "; |
| 126 | |
| 127 | /* FIXME: Space should toggle toggleable menu item but not remove the menu |
| 128 | so you can toggle the next one without entering the menu again. */ |
| 129 | |
| 130 | /* FIXME: Should ESC close one level of menu structure or the complete menu? */ |
| 131 | |
| 132 | /* FIXME: F10 should enter the menu, the first one in the menu-bar. */ |
| 133 | |
| 134 | #define offset(field) XtOffset(XlwMenuWidget, field) |
| 135 | static XtResource |
| 136 | xlwMenuResources[] = |
| 137 | { |
| 138 | {XtNfont, XtCFont, XtRFontStruct, sizeof(XFontStruct *), |
| 139 | offset(menu.font),XtRString, "XtDefaultFont"}, |
| 140 | {XtNforeground, XtCForeground, XtRPixel, sizeof(Pixel), |
| 141 | offset(menu.foreground), XtRString, "XtDefaultForeground"}, |
| 142 | {XtNdisabledForeground, XtCDisabledForeground, XtRPixel, sizeof(Pixel), |
| 143 | offset(menu.disabled_foreground), XtRString, (XtPointer)NULL}, |
| 144 | {XtNbuttonForeground, XtCButtonForeground, XtRPixel, sizeof(Pixel), |
| 145 | offset(menu.button_foreground), XtRString, "XtDefaultForeground"}, |
| 146 | {XtNmargin, XtCMargin, XtRDimension, sizeof(Dimension), |
| 147 | offset(menu.margin), XtRImmediate, (XtPointer)1}, |
| 148 | {XtNhorizontalSpacing, XtCMargin, XtRDimension, sizeof(Dimension), |
| 149 | offset(menu.horizontal_spacing), XtRImmediate, (XtPointer)3}, |
| 150 | {XtNverticalSpacing, XtCMargin, XtRDimension, sizeof(Dimension), |
| 151 | offset(menu.vertical_spacing), XtRImmediate, (XtPointer)2}, |
| 152 | {XtNarrowSpacing, XtCMargin, XtRDimension, sizeof(Dimension), |
| 153 | offset(menu.arrow_spacing), XtRImmediate, (XtPointer)10}, |
| 154 | |
| 155 | {XmNshadowThickness, XmCShadowThickness, XtRDimension, |
| 156 | sizeof (Dimension), offset (menu.shadow_thickness), |
| 157 | XtRImmediate, (XtPointer)1}, |
| 158 | {XmNtopShadowColor, XmCTopShadowColor, XtRPixel, sizeof (Pixel), |
| 159 | offset (menu.top_shadow_color), XtRImmediate, (XtPointer)-1}, |
| 160 | {XmNbottomShadowColor, XmCBottomShadowColor, XtRPixel, sizeof (Pixel), |
| 161 | offset (menu.bottom_shadow_color), XtRImmediate, (XtPointer)-1}, |
| 162 | {XmNtopShadowPixmap, XmCTopShadowPixmap, XtRPixmap, sizeof (Pixmap), |
| 163 | offset (menu.top_shadow_pixmap), XtRImmediate, (XtPointer)None}, |
| 164 | {XmNbottomShadowPixmap, XmCBottomShadowPixmap, XtRPixmap, sizeof (Pixmap), |
| 165 | offset (menu.bottom_shadow_pixmap), XtRImmediate, (XtPointer)None}, |
| 166 | |
| 167 | {XtNopen, XtCCallback, XtRCallback, sizeof(XtPointer), |
| 168 | offset(menu.open), XtRCallback, (XtPointer)NULL}, |
| 169 | {XtNselect, XtCCallback, XtRCallback, sizeof(XtPointer), |
| 170 | offset(menu.select), XtRCallback, (XtPointer)NULL}, |
| 171 | {XtNhighlightCallback, XtCCallback, XtRCallback, sizeof(XtPointer), |
| 172 | offset(menu.highlight), XtRCallback, (XtPointer)NULL}, |
| 173 | {XtNmenu, XtCMenu, XtRPointer, sizeof(XtPointer), |
| 174 | offset(menu.contents), XtRImmediate, (XtPointer)NULL}, |
| 175 | {XtNcursor, XtCCursor, XtRCursor, sizeof(Cursor), |
| 176 | offset(menu.cursor_shape), XtRString, (XtPointer)"right_ptr"}, |
| 177 | {XtNhorizontal, XtCHorizontal, XtRInt, sizeof(int), |
| 178 | offset(menu.horizontal), XtRImmediate, (XtPointer)True}, |
| 179 | }; |
| 180 | #undef offset |
| 181 | |
| 182 | static Boolean XlwMenuSetValues(); |
| 183 | static void XlwMenuRealize(); |
| 184 | static void XlwMenuRedisplay(); |
| 185 | static void XlwMenuResize(); |
| 186 | static void XlwMenuInitialize(); |
| 187 | static void XlwMenuRedisplay(); |
| 188 | static void XlwMenuDestroy(); |
| 189 | static void XlwMenuClassInitialize(); |
| 190 | static void Start(); |
| 191 | static void Drag(); |
| 192 | static void Down(); |
| 193 | static void Up(); |
| 194 | static void Left(); |
| 195 | static void Right(); |
| 196 | static void Select(); |
| 197 | static void Key(); |
| 198 | static void Nothing(); |
| 199 | static int separator_height __P ((enum menu_separator)); |
| 200 | |
| 201 | static XtActionsRec |
| 202 | xlwMenuActionsList [] = |
| 203 | { |
| 204 | {"start", Start}, |
| 205 | {"drag", Drag}, |
| 206 | {"down", Down}, |
| 207 | {"up", Up}, |
| 208 | {"left", Left}, |
| 209 | {"right", Right}, |
| 210 | {"select", Select}, |
| 211 | {"key", Key}, |
| 212 | {"nothing", Nothing}, |
| 213 | }; |
| 214 | |
| 215 | #define SuperClass ((CoreWidgetClass)&coreClassRec) |
| 216 | |
| 217 | XlwMenuClassRec xlwMenuClassRec = |
| 218 | { |
| 219 | { /* CoreClass fields initialization */ |
| 220 | (WidgetClass) SuperClass, /* superclass */ |
| 221 | "XlwMenu", /* class_name */ |
| 222 | sizeof(XlwMenuRec), /* size */ |
| 223 | XlwMenuClassInitialize, /* class_initialize */ |
| 224 | NULL, /* class_part_initialize */ |
| 225 | FALSE, /* class_inited */ |
| 226 | XlwMenuInitialize, /* initialize */ |
| 227 | NULL, /* initialize_hook */ |
| 228 | XlwMenuRealize, /* realize */ |
| 229 | xlwMenuActionsList, /* actions */ |
| 230 | XtNumber(xlwMenuActionsList), /* num_actions */ |
| 231 | xlwMenuResources, /* resources */ |
| 232 | XtNumber(xlwMenuResources), /* resource_count */ |
| 233 | NULLQUARK, /* xrm_class */ |
| 234 | TRUE, /* compress_motion */ |
| 235 | TRUE, /* compress_exposure */ |
| 236 | TRUE, /* compress_enterleave */ |
| 237 | FALSE, /* visible_interest */ |
| 238 | XlwMenuDestroy, /* destroy */ |
| 239 | XlwMenuResize, /* resize */ |
| 240 | XlwMenuRedisplay, /* expose */ |
| 241 | XlwMenuSetValues, /* set_values */ |
| 242 | NULL, /* set_values_hook */ |
| 243 | XtInheritSetValuesAlmost, /* set_values_almost */ |
| 244 | NULL, /* get_values_hook */ |
| 245 | NULL, /* accept_focus */ |
| 246 | XtVersion, /* version */ |
| 247 | NULL, /* callback_private */ |
| 248 | xlwMenuTranslations, /* tm_table */ |
| 249 | XtInheritQueryGeometry, /* query_geometry */ |
| 250 | XtInheritDisplayAccelerator, /* display_accelerator */ |
| 251 | NULL /* extension */ |
| 252 | }, /* XlwMenuClass fields initialization */ |
| 253 | { |
| 254 | 0 /* dummy */ |
| 255 | }, |
| 256 | }; |
| 257 | |
| 258 | WidgetClass xlwMenuWidgetClass = (WidgetClass) &xlwMenuClassRec; |
| 259 | |
| 260 | int submenu_destroyed; |
| 261 | |
| 262 | /* For debug, if installation-directory is non-nil this is not an installed |
| 263 | Emacs. In that case we do not grab the keyboard to make it easier to |
| 264 | debug. */ |
| 265 | #define GRAB_KEYBOARD (EQ (Vinstallation_directory, Qnil)) |
| 266 | |
| 267 | static int next_release_must_exit; |
| 268 | |
| 269 | \f/* Utilities */ |
| 270 | |
| 271 | /* Ungrab pointer and keyboard */ |
| 272 | static void |
| 273 | ungrab_all (w, ungrabtime) |
| 274 | Widget w; |
| 275 | Time ungrabtime; |
| 276 | { |
| 277 | XtUngrabPointer (w, ungrabtime); |
| 278 | if (GRAB_KEYBOARD) XtUngrabKeyboard (w, ungrabtime); |
| 279 | } |
| 280 | |
| 281 | /* Like abort, but remove grabs from widget W before. */ |
| 282 | |
| 283 | static void |
| 284 | abort_gracefully (w) |
| 285 | Widget w; |
| 286 | { |
| 287 | if (XtIsShell (XtParent (w))) |
| 288 | XtRemoveGrab (w); |
| 289 | ungrab_all (w, CurrentTime); |
| 290 | abort (); |
| 291 | } |
| 292 | |
| 293 | static void |
| 294 | push_new_stack (mw, val) |
| 295 | XlwMenuWidget mw; |
| 296 | widget_value* val; |
| 297 | { |
| 298 | if (!mw->menu.new_stack) |
| 299 | { |
| 300 | mw->menu.new_stack_length = 10; |
| 301 | mw->menu.new_stack = |
| 302 | (widget_value**)XtCalloc (mw->menu.new_stack_length, |
| 303 | sizeof (widget_value*)); |
| 304 | } |
| 305 | else if (mw->menu.new_depth == mw->menu.new_stack_length) |
| 306 | { |
| 307 | mw->menu.new_stack_length *= 2; |
| 308 | mw->menu.new_stack = |
| 309 | (widget_value**)XtRealloc ((char*)mw->menu.new_stack, |
| 310 | mw->menu.new_stack_length * sizeof (widget_value*)); |
| 311 | } |
| 312 | mw->menu.new_stack [mw->menu.new_depth++] = val; |
| 313 | } |
| 314 | |
| 315 | static void |
| 316 | pop_new_stack_if_no_contents (mw) |
| 317 | XlwMenuWidget mw; |
| 318 | { |
| 319 | if (mw->menu.new_depth > 1) |
| 320 | { |
| 321 | if (!mw->menu.new_stack [mw->menu.new_depth - 1]->contents) |
| 322 | mw->menu.new_depth -= 1; |
| 323 | } |
| 324 | } |
| 325 | |
| 326 | static void |
| 327 | make_old_stack_space (mw, n) |
| 328 | XlwMenuWidget mw; |
| 329 | int n; |
| 330 | { |
| 331 | if (!mw->menu.old_stack) |
| 332 | { |
| 333 | mw->menu.old_stack_length = 10; |
| 334 | mw->menu.old_stack = |
| 335 | (widget_value**)XtCalloc (mw->menu.old_stack_length, |
| 336 | sizeof (widget_value*)); |
| 337 | } |
| 338 | else if (mw->menu.old_stack_length < n) |
| 339 | { |
| 340 | mw->menu.old_stack_length *= 2; |
| 341 | mw->menu.old_stack = |
| 342 | (widget_value**)XtRealloc ((char*)mw->menu.old_stack, |
| 343 | mw->menu.old_stack_length * sizeof (widget_value*)); |
| 344 | } |
| 345 | } |
| 346 | |
| 347 | \f/* Size code */ |
| 348 | int |
| 349 | string_width (mw, s) |
| 350 | XlwMenuWidget mw; |
| 351 | char *s; |
| 352 | { |
| 353 | XCharStruct xcs; |
| 354 | int drop; |
| 355 | |
| 356 | XTextExtents (mw->menu.font, s, strlen (s), &drop, &drop, &drop, &xcs); |
| 357 | return xcs.width; |
| 358 | } |
| 359 | |
| 360 | static int |
| 361 | arrow_width (mw) |
| 362 | XlwMenuWidget mw; |
| 363 | { |
| 364 | return (mw->menu.font->ascent * 3/4) | 1; |
| 365 | } |
| 366 | |
| 367 | /* Return the width of toggle buttons of widget MW. */ |
| 368 | |
| 369 | static int |
| 370 | toggle_button_width (mw) |
| 371 | XlwMenuWidget mw; |
| 372 | { |
| 373 | return ((mw->menu.font->ascent + mw->menu.font->descent) * 2 / 3) | 1; |
| 374 | } |
| 375 | |
| 376 | |
| 377 | /* Return the width of radio buttons of widget MW. */ |
| 378 | |
| 379 | static int |
| 380 | radio_button_width (mw) |
| 381 | XlwMenuWidget mw; |
| 382 | { |
| 383 | return toggle_button_width (mw) * 1.41; |
| 384 | } |
| 385 | |
| 386 | |
| 387 | static XtResource |
| 388 | nameResource[] = |
| 389 | { |
| 390 | {"labelString", "LabelString", XtRString, sizeof(String), |
| 391 | 0, XtRImmediate, 0}, |
| 392 | }; |
| 393 | |
| 394 | static char* |
| 395 | resource_widget_value (mw, val) |
| 396 | XlwMenuWidget mw; |
| 397 | widget_value *val; |
| 398 | { |
| 399 | if (!val->toolkit_data) |
| 400 | { |
| 401 | char* resourced_name = NULL; |
| 402 | char* complete_name; |
| 403 | XtGetSubresources ((Widget) mw, |
| 404 | (XtPointer) &resourced_name, |
| 405 | val->name, val->name, |
| 406 | nameResource, 1, NULL, 0); |
| 407 | if (!resourced_name) |
| 408 | resourced_name = val->name; |
| 409 | if (!val->value) |
| 410 | { |
| 411 | complete_name = (char *) XtMalloc (strlen (resourced_name) + 1); |
| 412 | strcpy (complete_name, resourced_name); |
| 413 | } |
| 414 | else |
| 415 | { |
| 416 | int complete_length = |
| 417 | strlen (resourced_name) + strlen (val->value) + 2; |
| 418 | complete_name = XtMalloc (complete_length); |
| 419 | *complete_name = 0; |
| 420 | strcat (complete_name, resourced_name); |
| 421 | strcat (complete_name, " "); |
| 422 | strcat (complete_name, val->value); |
| 423 | } |
| 424 | |
| 425 | val->toolkit_data = complete_name; |
| 426 | val->free_toolkit_data = True; |
| 427 | } |
| 428 | return (char*)val->toolkit_data; |
| 429 | } |
| 430 | |
| 431 | /* Returns the sizes of an item */ |
| 432 | static void |
| 433 | size_menu_item (mw, val, horizontal_p, label_width, rest_width, button_width, |
| 434 | height) |
| 435 | XlwMenuWidget mw; |
| 436 | widget_value* val; |
| 437 | int horizontal_p; |
| 438 | int* label_width; |
| 439 | int* rest_width; |
| 440 | int* button_width; |
| 441 | int* height; |
| 442 | { |
| 443 | enum menu_separator separator; |
| 444 | |
| 445 | if (lw_separator_p (val->name, &separator, 0)) |
| 446 | { |
| 447 | *height = separator_height (separator); |
| 448 | *label_width = 1; |
| 449 | *rest_width = 0; |
| 450 | *button_width = 0; |
| 451 | } |
| 452 | else |
| 453 | { |
| 454 | *height = |
| 455 | mw->menu.font->ascent + mw->menu.font->descent |
| 456 | + 2 * mw->menu.vertical_spacing + 2 * mw->menu.shadow_thickness; |
| 457 | |
| 458 | *label_width = |
| 459 | string_width (mw, resource_widget_value (mw, val)) |
| 460 | + mw->menu.horizontal_spacing + mw->menu.shadow_thickness; |
| 461 | |
| 462 | *rest_width = mw->menu.horizontal_spacing + mw->menu.shadow_thickness; |
| 463 | if (!horizontal_p) |
| 464 | { |
| 465 | if (val->contents) |
| 466 | /* Add width of the arrow displayed for submenus. */ |
| 467 | *rest_width += arrow_width (mw) + mw->menu.arrow_spacing; |
| 468 | else if (val->key) |
| 469 | /* Add width of key equivalent string. */ |
| 470 | *rest_width += (string_width (mw, val->key) |
| 471 | + mw->menu.arrow_spacing); |
| 472 | |
| 473 | if (val->button_type == BUTTON_TYPE_TOGGLE) |
| 474 | *button_width = (toggle_button_width (mw) |
| 475 | + mw->menu.horizontal_spacing); |
| 476 | else if (val->button_type == BUTTON_TYPE_RADIO) |
| 477 | *button_width = (radio_button_width (mw) |
| 478 | + mw->menu.horizontal_spacing); |
| 479 | } |
| 480 | } |
| 481 | } |
| 482 | |
| 483 | static void |
| 484 | size_menu (mw, level) |
| 485 | XlwMenuWidget mw; |
| 486 | int level; |
| 487 | { |
| 488 | unsigned int label_width = 0; |
| 489 | int rest_width = 0; |
| 490 | int button_width = 0; |
| 491 | int max_rest_width = 0; |
| 492 | int max_button_width = 0; |
| 493 | unsigned int height = 0; |
| 494 | int horizontal_p = mw->menu.horizontal && (level == 0); |
| 495 | widget_value* val; |
| 496 | window_state* ws; |
| 497 | |
| 498 | if (level >= mw->menu.old_depth) |
| 499 | abort_gracefully ((Widget) mw); |
| 500 | |
| 501 | ws = &mw->menu.windows [level]; |
| 502 | ws->width = 0; |
| 503 | ws->height = 0; |
| 504 | ws->label_width = 0; |
| 505 | ws->button_width = 0; |
| 506 | |
| 507 | for (val = mw->menu.old_stack [level]->contents; val; val = val->next) |
| 508 | { |
| 509 | size_menu_item (mw, val, horizontal_p, &label_width, &rest_width, |
| 510 | &button_width, &height); |
| 511 | if (horizontal_p) |
| 512 | { |
| 513 | ws->width += label_width + rest_width; |
| 514 | if (height > ws->height) |
| 515 | ws->height = height; |
| 516 | } |
| 517 | else |
| 518 | { |
| 519 | if (label_width > ws->label_width) |
| 520 | ws->label_width = label_width; |
| 521 | if (rest_width > max_rest_width) |
| 522 | max_rest_width = rest_width; |
| 523 | if (button_width > max_button_width) |
| 524 | max_button_width = button_width; |
| 525 | ws->height += height; |
| 526 | } |
| 527 | } |
| 528 | |
| 529 | if (horizontal_p) |
| 530 | ws->label_width = ws->button_width = 0; |
| 531 | else |
| 532 | { |
| 533 | ws->width = ws->label_width + max_rest_width + max_button_width; |
| 534 | ws->button_width = max_button_width; |
| 535 | } |
| 536 | |
| 537 | ws->width += 2 * mw->menu.shadow_thickness; |
| 538 | ws->height += 2 * mw->menu.shadow_thickness; |
| 539 | |
| 540 | if (horizontal_p) |
| 541 | { |
| 542 | ws->width += 2 * mw->menu.margin; |
| 543 | ws->height += 2 * mw->menu.margin; |
| 544 | } |
| 545 | } |
| 546 | |
| 547 | |
| 548 | \f/* Display code */ |
| 549 | |
| 550 | static void |
| 551 | draw_arrow (mw, window, gc, x, y, width, down_p) |
| 552 | XlwMenuWidget mw; |
| 553 | Window window; |
| 554 | GC gc; |
| 555 | int x; |
| 556 | int y; |
| 557 | int width; |
| 558 | int down_p; |
| 559 | { |
| 560 | Display *dpy = XtDisplay (mw); |
| 561 | GC top_gc = mw->menu.shadow_top_gc; |
| 562 | GC bottom_gc = mw->menu.shadow_bottom_gc; |
| 563 | int thickness = mw->menu.shadow_thickness; |
| 564 | int height = width; |
| 565 | XPoint pt[10]; |
| 566 | /* alpha = atan (0.5) |
| 567 | factor = (1 + sin (alpha)) / cos (alpha) */ |
| 568 | double factor = 1.62; |
| 569 | int thickness2 = thickness * factor; |
| 570 | |
| 571 | y += (mw->menu.font->ascent + mw->menu.font->descent - height) / 2; |
| 572 | |
| 573 | if (down_p) |
| 574 | { |
| 575 | GC temp; |
| 576 | temp = top_gc; |
| 577 | top_gc = bottom_gc; |
| 578 | bottom_gc = temp; |
| 579 | } |
| 580 | |
| 581 | pt[0].x = x; |
| 582 | pt[0].y = y + height; |
| 583 | pt[1].x = x + thickness; |
| 584 | pt[1].y = y + height - thickness2; |
| 585 | pt[2].x = x + thickness2; |
| 586 | pt[2].y = y + thickness2; |
| 587 | pt[3].x = x; |
| 588 | pt[3].y = y; |
| 589 | XFillPolygon (dpy, window, top_gc, pt, 4, Convex, CoordModeOrigin); |
| 590 | |
| 591 | pt[0].x = x; |
| 592 | pt[0].y = y; |
| 593 | pt[1].x = x + thickness; |
| 594 | pt[1].y = y + thickness2; |
| 595 | pt[2].x = x + width - thickness2; |
| 596 | pt[2].y = y + height / 2; |
| 597 | pt[3].x = x + width; |
| 598 | pt[3].y = y + height / 2; |
| 599 | XFillPolygon (dpy, window, top_gc, pt, 4, Convex, CoordModeOrigin); |
| 600 | |
| 601 | pt[0].x = x; |
| 602 | pt[0].y = y + height; |
| 603 | pt[1].x = x + thickness; |
| 604 | pt[1].y = y + height - thickness2; |
| 605 | pt[2].x = x + width - thickness2; |
| 606 | pt[2].y = y + height / 2; |
| 607 | pt[3].x = x + width; |
| 608 | pt[3].y = y + height / 2; |
| 609 | XFillPolygon (dpy, window, bottom_gc, pt, 4, Convex, CoordModeOrigin); |
| 610 | } |
| 611 | |
| 612 | |
| 613 | |
| 614 | static void |
| 615 | draw_shadow_rectangle (mw, window, x, y, width, height, erase_p, down_p) |
| 616 | XlwMenuWidget mw; |
| 617 | Window window; |
| 618 | int x; |
| 619 | int y; |
| 620 | int width; |
| 621 | int height; |
| 622 | int erase_p; |
| 623 | int down_p; |
| 624 | { |
| 625 | Display *dpy = XtDisplay (mw); |
| 626 | GC top_gc = !erase_p ? mw->menu.shadow_top_gc : mw->menu.background_gc; |
| 627 | GC bottom_gc = !erase_p ? mw->menu.shadow_bottom_gc : mw->menu.background_gc; |
| 628 | int thickness = mw->menu.shadow_thickness; |
| 629 | XPoint points [4]; |
| 630 | |
| 631 | if (!erase_p && down_p) |
| 632 | { |
| 633 | GC temp; |
| 634 | temp = top_gc; |
| 635 | top_gc = bottom_gc; |
| 636 | bottom_gc = temp; |
| 637 | } |
| 638 | |
| 639 | points [0].x = x; |
| 640 | points [0].y = y; |
| 641 | points [1].x = x + width; |
| 642 | points [1].y = y; |
| 643 | points [2].x = x + width - thickness; |
| 644 | points [2].y = y + thickness; |
| 645 | points [3].x = x; |
| 646 | points [3].y = y + thickness; |
| 647 | XFillPolygon (dpy, window, top_gc, points, 4, Convex, CoordModeOrigin); |
| 648 | points [0].x = x; |
| 649 | points [0].y = y + thickness; |
| 650 | points [1].x = x; |
| 651 | points [1].y = y + height; |
| 652 | points [2].x = x + thickness; |
| 653 | points [2].y = y + height - thickness; |
| 654 | points [3].x = x + thickness; |
| 655 | points [3].y = y + thickness; |
| 656 | XFillPolygon (dpy, window, top_gc, points, 4, Convex, CoordModeOrigin); |
| 657 | points [0].x = x + width; |
| 658 | points [0].y = y; |
| 659 | points [1].x = x + width - thickness; |
| 660 | points [1].y = y + thickness; |
| 661 | points [2].x = x + width - thickness; |
| 662 | points [2].y = y + height - thickness; |
| 663 | points [3].x = x + width; |
| 664 | points [3].y = y + height - thickness; |
| 665 | XFillPolygon (dpy, window, bottom_gc, points, 4, Convex, CoordModeOrigin); |
| 666 | points [0].x = x; |
| 667 | points [0].y = y + height; |
| 668 | points [1].x = x + width; |
| 669 | points [1].y = y + height; |
| 670 | points [2].x = x + width; |
| 671 | points [2].y = y + height - thickness; |
| 672 | points [3].x = x + thickness; |
| 673 | points [3].y = y + height - thickness; |
| 674 | XFillPolygon (dpy, window, bottom_gc, points, 4, Convex, CoordModeOrigin); |
| 675 | } |
| 676 | |
| 677 | |
| 678 | static void |
| 679 | draw_shadow_rhombus (mw, window, x, y, width, height, erase_p, down_p) |
| 680 | XlwMenuWidget mw; |
| 681 | Window window; |
| 682 | int x; |
| 683 | int y; |
| 684 | int width; |
| 685 | int height; |
| 686 | int erase_p; |
| 687 | int down_p; |
| 688 | { |
| 689 | Display *dpy = XtDisplay (mw); |
| 690 | GC top_gc = !erase_p ? mw->menu.shadow_top_gc : mw->menu.background_gc; |
| 691 | GC bottom_gc = !erase_p ? mw->menu.shadow_bottom_gc : mw->menu.background_gc; |
| 692 | int thickness = mw->menu.shadow_thickness; |
| 693 | XPoint points [4]; |
| 694 | |
| 695 | if (!erase_p && down_p) |
| 696 | { |
| 697 | GC temp; |
| 698 | temp = top_gc; |
| 699 | top_gc = bottom_gc; |
| 700 | bottom_gc = temp; |
| 701 | } |
| 702 | |
| 703 | points [0].x = x; |
| 704 | points [0].y = y + height / 2; |
| 705 | points [1].x = x + thickness; |
| 706 | points [1].y = y + height / 2; |
| 707 | points [2].x = x + width / 2; |
| 708 | points [2].y = y + thickness; |
| 709 | points [3].x = x + width / 2; |
| 710 | points [3].y = y; |
| 711 | XFillPolygon (dpy, window, top_gc, points, 4, Convex, CoordModeOrigin); |
| 712 | points [0].x = x + width / 2; |
| 713 | points [0].y = y; |
| 714 | points [1].x = x + width / 2; |
| 715 | points [1].y = y + thickness; |
| 716 | points [2].x = x + width - thickness; |
| 717 | points [2].y = y + height / 2; |
| 718 | points [3].x = x + width; |
| 719 | points [3].y = y + height / 2; |
| 720 | XFillPolygon (dpy, window, top_gc, points, 4, Convex, CoordModeOrigin); |
| 721 | points [0].x = x; |
| 722 | points [0].y = y + height / 2; |
| 723 | points [1].x = x + thickness; |
| 724 | points [1].y = y + height / 2; |
| 725 | points [2].x = x + width / 2; |
| 726 | points [2].y = y + height - thickness; |
| 727 | points [3].x = x + width / 2; |
| 728 | points [3].y = y + height; |
| 729 | XFillPolygon (dpy, window, bottom_gc, points, 4, Convex, CoordModeOrigin); |
| 730 | points [0].x = x + width / 2; |
| 731 | points [0].y = y + height; |
| 732 | points [1].x = x + width / 2; |
| 733 | points [1].y = y + height - thickness; |
| 734 | points [2].x = x + width - thickness; |
| 735 | points [2].y = y + height / 2; |
| 736 | points [3].x = x + width; |
| 737 | points [3].y = y + height / 2; |
| 738 | XFillPolygon (dpy, window, bottom_gc, points, 4, Convex, CoordModeOrigin); |
| 739 | } |
| 740 | |
| 741 | |
| 742 | /* Draw a toggle button on widget MW, X window WINDOW. X/Y is the |
| 743 | top-left corner of the menu item. SELECTED_P non-zero means the |
| 744 | toggle button is selected. */ |
| 745 | |
| 746 | static void |
| 747 | draw_toggle (mw, window, x, y, selected_p) |
| 748 | XlwMenuWidget mw; |
| 749 | Window window; |
| 750 | int x, y, selected_p; |
| 751 | { |
| 752 | int width, height; |
| 753 | |
| 754 | width = toggle_button_width (mw); |
| 755 | height = width; |
| 756 | x += mw->menu.horizontal_spacing; |
| 757 | y += (mw->menu.font->ascent - height) / 2; |
| 758 | draw_shadow_rectangle (mw, window, x, y, width, height, False, selected_p); |
| 759 | } |
| 760 | |
| 761 | |
| 762 | /* Draw a radio button on widget MW, X window WINDOW. X/Y is the |
| 763 | top-left corner of the menu item. SELECTED_P non-zero means the |
| 764 | toggle button is selected. */ |
| 765 | |
| 766 | static void |
| 767 | draw_radio (mw, window, x, y, selected_p) |
| 768 | XlwMenuWidget mw; |
| 769 | Window window; |
| 770 | int x, y, selected_p; |
| 771 | { |
| 772 | int width, height; |
| 773 | |
| 774 | width = radio_button_width (mw); |
| 775 | height = width; |
| 776 | x += mw->menu.horizontal_spacing; |
| 777 | y += (mw->menu.font->ascent - height) / 2; |
| 778 | draw_shadow_rhombus (mw, window, x, y, width, height, False, selected_p); |
| 779 | } |
| 780 | |
| 781 | |
| 782 | /* Draw a menu separator on widget MW, X window WINDOW. X/Y is the |
| 783 | top-left corner of the menu item. WIDTH is the width of the |
| 784 | separator to draw. TYPE is the separator type. */ |
| 785 | |
| 786 | static void |
| 787 | draw_separator (mw, window, x, y, width, type) |
| 788 | XlwMenuWidget mw; |
| 789 | Window window; |
| 790 | int x, y, width; |
| 791 | enum menu_separator type; |
| 792 | { |
| 793 | Display *dpy = XtDisplay (mw); |
| 794 | XGCValues xgcv; |
| 795 | |
| 796 | switch (type) |
| 797 | { |
| 798 | case SEPARATOR_NO_LINE: |
| 799 | break; |
| 800 | |
| 801 | case SEPARATOR_SINGLE_LINE: |
| 802 | XDrawLine (dpy, window, mw->menu.foreground_gc, |
| 803 | x, y, x + width, y); |
| 804 | break; |
| 805 | |
| 806 | case SEPARATOR_DOUBLE_LINE: |
| 807 | draw_separator (mw, window, x, y, width, SEPARATOR_SINGLE_LINE); |
| 808 | draw_separator (mw, window, x, y + 2, width, SEPARATOR_SINGLE_LINE); |
| 809 | break; |
| 810 | |
| 811 | case SEPARATOR_SINGLE_DASHED_LINE: |
| 812 | xgcv.line_style = LineOnOffDash; |
| 813 | XChangeGC (dpy, mw->menu.foreground_gc, GCLineStyle, &xgcv); |
| 814 | XDrawLine (dpy, window, mw->menu.foreground_gc, |
| 815 | x, y, x + width, y); |
| 816 | xgcv.line_style = LineSolid; |
| 817 | XChangeGC (dpy, mw->menu.foreground_gc, GCLineStyle, &xgcv); |
| 818 | break; |
| 819 | |
| 820 | case SEPARATOR_DOUBLE_DASHED_LINE: |
| 821 | draw_separator (mw, window, x, y, width, |
| 822 | SEPARATOR_SINGLE_DASHED_LINE); |
| 823 | draw_separator (mw, window, x, y + 2, width, |
| 824 | SEPARATOR_SINGLE_DASHED_LINE); |
| 825 | break; |
| 826 | |
| 827 | case SEPARATOR_SHADOW_ETCHED_IN: |
| 828 | XDrawLine (dpy, window, mw->menu.shadow_bottom_gc, |
| 829 | x, y, x + width, y); |
| 830 | XDrawLine (dpy, window, mw->menu.shadow_top_gc, |
| 831 | x, y + 1, x + width, y + 1); |
| 832 | break; |
| 833 | |
| 834 | case SEPARATOR_SHADOW_ETCHED_OUT: |
| 835 | XDrawLine (dpy, window, mw->menu.shadow_top_gc, |
| 836 | x, y, x + width, y); |
| 837 | XDrawLine (dpy, window, mw->menu.shadow_bottom_gc, |
| 838 | x, y + 1, x + width, y + 1); |
| 839 | break; |
| 840 | |
| 841 | case SEPARATOR_SHADOW_ETCHED_IN_DASH: |
| 842 | xgcv.line_style = LineOnOffDash; |
| 843 | XChangeGC (dpy, mw->menu.shadow_bottom_gc, GCLineStyle, &xgcv); |
| 844 | XChangeGC (dpy, mw->menu.shadow_top_gc, GCLineStyle, &xgcv); |
| 845 | draw_separator (mw, window, x, y, width, SEPARATOR_SHADOW_ETCHED_IN); |
| 846 | xgcv.line_style = LineSolid; |
| 847 | XChangeGC (dpy, mw->menu.shadow_bottom_gc, GCLineStyle, &xgcv); |
| 848 | XChangeGC (dpy, mw->menu.shadow_top_gc, GCLineStyle, &xgcv); |
| 849 | break; |
| 850 | |
| 851 | case SEPARATOR_SHADOW_ETCHED_OUT_DASH: |
| 852 | xgcv.line_style = LineOnOffDash; |
| 853 | XChangeGC (dpy, mw->menu.shadow_bottom_gc, GCLineStyle, &xgcv); |
| 854 | XChangeGC (dpy, mw->menu.shadow_top_gc, GCLineStyle, &xgcv); |
| 855 | draw_separator (mw, window, x, y, width, SEPARATOR_SHADOW_ETCHED_OUT); |
| 856 | xgcv.line_style = LineSolid; |
| 857 | XChangeGC (dpy, mw->menu.shadow_bottom_gc, GCLineStyle, &xgcv); |
| 858 | XChangeGC (dpy, mw->menu.shadow_top_gc, GCLineStyle, &xgcv); |
| 859 | break; |
| 860 | |
| 861 | case SEPARATOR_SHADOW_DOUBLE_ETCHED_IN: |
| 862 | draw_separator (mw, window, x, y, width, SEPARATOR_SHADOW_ETCHED_IN); |
| 863 | draw_separator (mw, window, x, y + 3, width, SEPARATOR_SHADOW_ETCHED_IN); |
| 864 | break; |
| 865 | |
| 866 | case SEPARATOR_SHADOW_DOUBLE_ETCHED_OUT: |
| 867 | draw_separator (mw, window, x, y, width, |
| 868 | SEPARATOR_SHADOW_ETCHED_OUT); |
| 869 | draw_separator (mw, window, x, y + 3, width, |
| 870 | SEPARATOR_SHADOW_ETCHED_OUT); |
| 871 | break; |
| 872 | |
| 873 | case SEPARATOR_SHADOW_DOUBLE_ETCHED_IN_DASH: |
| 874 | xgcv.line_style = LineOnOffDash; |
| 875 | XChangeGC (dpy, mw->menu.shadow_bottom_gc, GCLineStyle, &xgcv); |
| 876 | XChangeGC (dpy, mw->menu.shadow_top_gc, GCLineStyle, &xgcv); |
| 877 | draw_separator (mw, window, x, y, width, |
| 878 | SEPARATOR_SHADOW_DOUBLE_ETCHED_IN); |
| 879 | xgcv.line_style = LineSolid; |
| 880 | XChangeGC (dpy, mw->menu.shadow_bottom_gc, GCLineStyle, &xgcv); |
| 881 | XChangeGC (dpy, mw->menu.shadow_top_gc, GCLineStyle, &xgcv); |
| 882 | break; |
| 883 | |
| 884 | case SEPARATOR_SHADOW_DOUBLE_ETCHED_OUT_DASH: |
| 885 | xgcv.line_style = LineOnOffDash; |
| 886 | XChangeGC (dpy, mw->menu.shadow_bottom_gc, GCLineStyle, &xgcv); |
| 887 | XChangeGC (dpy, mw->menu.shadow_top_gc, GCLineStyle, &xgcv); |
| 888 | draw_separator (mw, window, x, y, width, |
| 889 | SEPARATOR_SHADOW_DOUBLE_ETCHED_OUT); |
| 890 | xgcv.line_style = LineSolid; |
| 891 | XChangeGC (dpy, mw->menu.shadow_bottom_gc, GCLineStyle, &xgcv); |
| 892 | XChangeGC (dpy, mw->menu.shadow_top_gc, GCLineStyle, &xgcv); |
| 893 | break; |
| 894 | |
| 895 | default: |
| 896 | abort (); |
| 897 | } |
| 898 | } |
| 899 | |
| 900 | |
| 901 | /* Return the pixel height of menu separator SEPARATOR. */ |
| 902 | |
| 903 | static int |
| 904 | separator_height (separator) |
| 905 | enum menu_separator separator; |
| 906 | { |
| 907 | switch (separator) |
| 908 | { |
| 909 | case SEPARATOR_NO_LINE: |
| 910 | return 2; |
| 911 | |
| 912 | case SEPARATOR_SINGLE_LINE: |
| 913 | case SEPARATOR_SINGLE_DASHED_LINE: |
| 914 | return 1; |
| 915 | |
| 916 | case SEPARATOR_DOUBLE_LINE: |
| 917 | case SEPARATOR_DOUBLE_DASHED_LINE: |
| 918 | return 3; |
| 919 | |
| 920 | case SEPARATOR_SHADOW_ETCHED_IN: |
| 921 | case SEPARATOR_SHADOW_ETCHED_OUT: |
| 922 | case SEPARATOR_SHADOW_ETCHED_IN_DASH: |
| 923 | case SEPARATOR_SHADOW_ETCHED_OUT_DASH: |
| 924 | return 2; |
| 925 | |
| 926 | case SEPARATOR_SHADOW_DOUBLE_ETCHED_IN: |
| 927 | case SEPARATOR_SHADOW_DOUBLE_ETCHED_OUT: |
| 928 | case SEPARATOR_SHADOW_DOUBLE_ETCHED_IN_DASH: |
| 929 | case SEPARATOR_SHADOW_DOUBLE_ETCHED_OUT_DASH: |
| 930 | return 5; |
| 931 | |
| 932 | default: |
| 933 | abort (); |
| 934 | } |
| 935 | } |
| 936 | |
| 937 | |
| 938 | /* Display the menu item and increment where.x and where.y to show how large |
| 939 | the menu item was. */ |
| 940 | |
| 941 | static void |
| 942 | display_menu_item (mw, val, ws, where, highlighted_p, horizontal_p, |
| 943 | just_compute_p) |
| 944 | XlwMenuWidget mw; |
| 945 | widget_value* val; |
| 946 | window_state* ws; |
| 947 | XPoint* where; |
| 948 | Boolean highlighted_p; |
| 949 | Boolean horizontal_p; |
| 950 | Boolean just_compute_p; |
| 951 | { |
| 952 | GC deco_gc; |
| 953 | GC text_gc; |
| 954 | int font_ascent = mw->menu.font->ascent; |
| 955 | int font_descent = mw->menu.font->descent; |
| 956 | int shadow = mw->menu.shadow_thickness; |
| 957 | int margin = mw->menu.margin; |
| 958 | int h_spacing = mw->menu.horizontal_spacing; |
| 959 | int v_spacing = mw->menu.vertical_spacing; |
| 960 | int label_width; |
| 961 | int rest_width; |
| 962 | int button_width; |
| 963 | int height; |
| 964 | int width; |
| 965 | enum menu_separator separator; |
| 966 | int separator_p = lw_separator_p (val->name, &separator, 0); |
| 967 | |
| 968 | /* compute the sizes of the item */ |
| 969 | size_menu_item (mw, val, horizontal_p, &label_width, &rest_width, |
| 970 | &button_width, &height); |
| 971 | |
| 972 | if (horizontal_p) |
| 973 | width = label_width + rest_width; |
| 974 | else |
| 975 | { |
| 976 | label_width = ws->label_width; |
| 977 | width = ws->width - 2 * shadow; |
| 978 | } |
| 979 | |
| 980 | /* Only highlight an enabled item that has a callback. */ |
| 981 | if (highlighted_p) |
| 982 | if (!val->enabled || !(val->call_data || val->contents)) |
| 983 | highlighted_p = 0; |
| 984 | |
| 985 | /* do the drawing. */ |
| 986 | if (!just_compute_p) |
| 987 | { |
| 988 | /* Add the shadow border of the containing menu */ |
| 989 | int x = where->x + shadow; |
| 990 | int y = where->y + shadow; |
| 991 | |
| 992 | if (horizontal_p) |
| 993 | { |
| 994 | x += margin; |
| 995 | y += margin; |
| 996 | } |
| 997 | |
| 998 | /* pick the foreground and background GC. */ |
| 999 | if (val->enabled) |
| 1000 | text_gc = mw->menu.foreground_gc; |
| 1001 | else |
| 1002 | text_gc = mw->menu.disabled_gc; |
| 1003 | deco_gc = mw->menu.foreground_gc; |
| 1004 | |
| 1005 | if (separator_p) |
| 1006 | { |
| 1007 | draw_separator (mw, ws->window, x, y, width, separator); |
| 1008 | } |
| 1009 | else |
| 1010 | { |
| 1011 | int x_offset = x + h_spacing + shadow; |
| 1012 | char* display_string = resource_widget_value (mw, val); |
| 1013 | draw_shadow_rectangle (mw, ws->window, x, y, width, height, True, |
| 1014 | False); |
| 1015 | |
| 1016 | /* Deal with centering a menu title. */ |
| 1017 | if (!horizontal_p && !val->contents && !val->call_data) |
| 1018 | { |
| 1019 | int l = string_width (mw, display_string); |
| 1020 | |
| 1021 | if (width > l) |
| 1022 | x_offset = (width - l) >> 1; |
| 1023 | } |
| 1024 | else if (!horizontal_p && ws->button_width) |
| 1025 | x_offset += ws->button_width; |
| 1026 | |
| 1027 | |
| 1028 | XDrawString (XtDisplay (mw), ws->window, text_gc, x_offset, |
| 1029 | y + v_spacing + shadow + font_ascent, |
| 1030 | display_string, strlen (display_string)); |
| 1031 | |
| 1032 | if (!horizontal_p) |
| 1033 | { |
| 1034 | if (val->button_type == BUTTON_TYPE_TOGGLE) |
| 1035 | draw_toggle (mw, ws->window, x, y + v_spacing + shadow, |
| 1036 | val->selected); |
| 1037 | else if (val->button_type == BUTTON_TYPE_RADIO) |
| 1038 | draw_radio (mw, ws->window, x, y + v_spacing + shadow, |
| 1039 | val->selected); |
| 1040 | |
| 1041 | if (val->contents) |
| 1042 | { |
| 1043 | int a_w = arrow_width (mw); |
| 1044 | draw_arrow (mw, ws->window, deco_gc, |
| 1045 | x + width - a_w |
| 1046 | - mw->menu.horizontal_spacing |
| 1047 | - mw->menu.shadow_thickness, |
| 1048 | y + v_spacing + shadow, a_w, |
| 1049 | highlighted_p); |
| 1050 | } |
| 1051 | else if (val->key) |
| 1052 | { |
| 1053 | XDrawString (XtDisplay (mw), ws->window, text_gc, |
| 1054 | x + label_width + mw->menu.arrow_spacing, |
| 1055 | y + v_spacing + shadow + font_ascent, |
| 1056 | val->key, strlen (val->key)); |
| 1057 | } |
| 1058 | } |
| 1059 | else |
| 1060 | { |
| 1061 | XDrawRectangle (XtDisplay (mw), ws->window, |
| 1062 | mw->menu.background_gc, |
| 1063 | x + shadow, y + shadow, |
| 1064 | label_width + h_spacing - 1, |
| 1065 | font_ascent + font_descent + 2 * v_spacing - 1); |
| 1066 | draw_shadow_rectangle (mw, ws->window, x, y, width, height, |
| 1067 | True, False); |
| 1068 | } |
| 1069 | |
| 1070 | if (highlighted_p) |
| 1071 | draw_shadow_rectangle (mw, ws->window, x, y, width, height, False, |
| 1072 | False); |
| 1073 | } |
| 1074 | } |
| 1075 | |
| 1076 | where->x += width; |
| 1077 | where->y += height; |
| 1078 | } |
| 1079 | |
| 1080 | static void |
| 1081 | display_menu (mw, level, just_compute_p, highlighted_pos, hit, hit_return, |
| 1082 | this, that) |
| 1083 | XlwMenuWidget mw; |
| 1084 | int level; |
| 1085 | Boolean just_compute_p; |
| 1086 | XPoint* highlighted_pos; |
| 1087 | XPoint* hit; |
| 1088 | widget_value** hit_return; |
| 1089 | widget_value* this; |
| 1090 | widget_value* that; |
| 1091 | { |
| 1092 | widget_value* val; |
| 1093 | widget_value* following_item; |
| 1094 | window_state* ws; |
| 1095 | XPoint where; |
| 1096 | int horizontal_p = mw->menu.horizontal && (level == 0); |
| 1097 | int highlighted_p; |
| 1098 | int just_compute_this_one_p; |
| 1099 | /* This is set nonzero if the element containing HIGHLIGHTED_POS |
| 1100 | is disabled, so that we do not return any subsequent element either. */ |
| 1101 | int no_return = 0; |
| 1102 | enum menu_separator separator; |
| 1103 | |
| 1104 | if (level >= mw->menu.old_depth) |
| 1105 | abort_gracefully ((Widget) mw); |
| 1106 | |
| 1107 | if (level < mw->menu.old_depth - 1) |
| 1108 | following_item = mw->menu.old_stack [level + 1]; |
| 1109 | else |
| 1110 | following_item = NULL; |
| 1111 | |
| 1112 | if (hit) |
| 1113 | *hit_return = NULL; |
| 1114 | |
| 1115 | where.x = 0; |
| 1116 | where.y = 0; |
| 1117 | |
| 1118 | ws = &mw->menu.windows [level]; |
| 1119 | for (val = mw->menu.old_stack [level]->contents; val; val = val->next) |
| 1120 | { |
| 1121 | highlighted_p = val == following_item; |
| 1122 | if (highlighted_p && highlighted_pos) |
| 1123 | { |
| 1124 | if (horizontal_p) |
| 1125 | highlighted_pos->x = where.x; |
| 1126 | else |
| 1127 | highlighted_pos->y = where.y; |
| 1128 | } |
| 1129 | |
| 1130 | just_compute_this_one_p = |
| 1131 | just_compute_p || ((this || that) && val != this && val != that); |
| 1132 | |
| 1133 | display_menu_item (mw, val, ws, &where, highlighted_p, horizontal_p, |
| 1134 | just_compute_this_one_p); |
| 1135 | |
| 1136 | if (highlighted_p && highlighted_pos) |
| 1137 | { |
| 1138 | if (horizontal_p) |
| 1139 | highlighted_pos->y = where.y; |
| 1140 | else |
| 1141 | highlighted_pos->x = where.x; |
| 1142 | } |
| 1143 | |
| 1144 | if (hit |
| 1145 | && !*hit_return |
| 1146 | && (horizontal_p ? hit->x < where.x : hit->y < where.y) |
| 1147 | && !lw_separator_p (val->name, &separator, 0) |
| 1148 | && !no_return) |
| 1149 | { |
| 1150 | if (val->enabled) |
| 1151 | *hit_return = val; |
| 1152 | else |
| 1153 | no_return = 1; |
| 1154 | } |
| 1155 | |
| 1156 | if (horizontal_p) |
| 1157 | where.y = 0; |
| 1158 | else |
| 1159 | where.x = 0; |
| 1160 | } |
| 1161 | |
| 1162 | if (!just_compute_p) |
| 1163 | draw_shadow_rectangle (mw, ws->window, 0, 0, ws->width, ws->height, |
| 1164 | False, False); |
| 1165 | } |
| 1166 | |
| 1167 | \f/* Motion code */ |
| 1168 | static void |
| 1169 | set_new_state (mw, val, level) |
| 1170 | XlwMenuWidget mw; |
| 1171 | widget_value* val; |
| 1172 | int level; |
| 1173 | { |
| 1174 | int i; |
| 1175 | |
| 1176 | mw->menu.new_depth = 0; |
| 1177 | for (i = 0; i < level; i++) |
| 1178 | push_new_stack (mw, mw->menu.old_stack [i]); |
| 1179 | push_new_stack (mw, val); |
| 1180 | } |
| 1181 | |
| 1182 | static void |
| 1183 | make_windows_if_needed (mw, n) |
| 1184 | XlwMenuWidget mw; |
| 1185 | int n; |
| 1186 | { |
| 1187 | int i; |
| 1188 | int start_at; |
| 1189 | XSetWindowAttributes xswa; |
| 1190 | int mask; |
| 1191 | Window root = RootWindowOfScreen (DefaultScreenOfDisplay (XtDisplay (mw))); |
| 1192 | window_state* windows; |
| 1193 | |
| 1194 | if (mw->menu.windows_length >= n) |
| 1195 | return; |
| 1196 | |
| 1197 | xswa.save_under = True; |
| 1198 | xswa.override_redirect = True; |
| 1199 | xswa.background_pixel = mw->core.background_pixel; |
| 1200 | xswa.border_pixel = mw->core.border_pixel; |
| 1201 | xswa.event_mask = |
| 1202 | ExposureMask | PointerMotionMask | PointerMotionHintMask |
| 1203 | | ButtonReleaseMask | ButtonPressMask; |
| 1204 | xswa.cursor = mw->menu.cursor_shape; |
| 1205 | mask = CWSaveUnder | CWOverrideRedirect | CWBackPixel | CWBorderPixel |
| 1206 | | CWEventMask | CWCursor; |
| 1207 | |
| 1208 | if (!mw->menu.windows) |
| 1209 | { |
| 1210 | mw->menu.windows = |
| 1211 | (window_state*)XtMalloc (n * sizeof (window_state)); |
| 1212 | start_at = 0; |
| 1213 | } |
| 1214 | else |
| 1215 | { |
| 1216 | mw->menu.windows = |
| 1217 | (window_state*)XtRealloc ((char*)mw->menu.windows, |
| 1218 | n * sizeof (window_state)); |
| 1219 | start_at = mw->menu.windows_length; |
| 1220 | } |
| 1221 | mw->menu.windows_length = n; |
| 1222 | |
| 1223 | windows = mw->menu.windows; |
| 1224 | |
| 1225 | for (i = start_at; i < n; i++) |
| 1226 | { |
| 1227 | windows [i].x = 0; |
| 1228 | windows [i].y = 0; |
| 1229 | windows [i].width = 1; |
| 1230 | windows [i].height = 1; |
| 1231 | windows [i].window = |
| 1232 | XCreateWindow (XtDisplay (mw), root, 0, 0, 1, 1, |
| 1233 | 0, 0, CopyFromParent, CopyFromParent, mask, &xswa); |
| 1234 | } |
| 1235 | } |
| 1236 | |
| 1237 | /* Value is non-zero if WINDOW is part of menu bar widget W. */ |
| 1238 | |
| 1239 | int |
| 1240 | xlwmenu_window_p (w, window) |
| 1241 | Widget w; |
| 1242 | Window window; |
| 1243 | { |
| 1244 | XlwMenuWidget mw = (XlwMenuWidget) w; |
| 1245 | int i; |
| 1246 | |
| 1247 | for (i = 0; i < mw->menu.windows_length; ++i) |
| 1248 | if (window == mw->menu.windows[i].window) |
| 1249 | break; |
| 1250 | |
| 1251 | return i < mw->menu.windows_length; |
| 1252 | } |
| 1253 | |
| 1254 | /* Make the window fit in the screen */ |
| 1255 | static void |
| 1256 | fit_to_screen (mw, ws, previous_ws, horizontal_p) |
| 1257 | XlwMenuWidget mw; |
| 1258 | window_state* ws; |
| 1259 | window_state* previous_ws; |
| 1260 | Boolean horizontal_p; |
| 1261 | { |
| 1262 | unsigned int screen_width = WidthOfScreen (XtScreen (mw)); |
| 1263 | unsigned int screen_height = HeightOfScreen (XtScreen (mw)); |
| 1264 | /* 1 if we are unable to avoid an overlap between |
| 1265 | this menu and the parent menu in the X dimension. */ |
| 1266 | int horizontal_overlap = 0; |
| 1267 | |
| 1268 | if (ws->x < 0) |
| 1269 | ws->x = 0; |
| 1270 | else if (ws->x + ws->width > screen_width) |
| 1271 | { |
| 1272 | if (!horizontal_p) |
| 1273 | /* The addition of shadow-thickness for a sub-menu's position is |
| 1274 | to reflect a similar adjustment when the menu is displayed to |
| 1275 | the right of the invoking menu-item; it makes the sub-menu |
| 1276 | look more `attached' to the menu-item. */ |
| 1277 | ws->x = previous_ws->x - ws->width + mw->menu.shadow_thickness; |
| 1278 | else |
| 1279 | ws->x = screen_width - ws->width; |
| 1280 | if (ws->x < 0) |
| 1281 | { |
| 1282 | ws->x = 0; |
| 1283 | horizontal_overlap = 1; |
| 1284 | } |
| 1285 | } |
| 1286 | /* If we overlap in X, try to avoid overlap in Y. */ |
| 1287 | if (horizontal_overlap |
| 1288 | && ws->y < previous_ws->y + previous_ws->height |
| 1289 | && previous_ws->y < ws->y + ws->height) |
| 1290 | { |
| 1291 | /* Put this menu right below or right above PREVIOUS_WS |
| 1292 | if there's room. */ |
| 1293 | if (previous_ws->y + previous_ws->height + ws->height < screen_height) |
| 1294 | ws->y = previous_ws->y + previous_ws->height; |
| 1295 | else if (previous_ws->y - ws->height > 0) |
| 1296 | ws->y = previous_ws->y - ws->height; |
| 1297 | } |
| 1298 | |
| 1299 | if (ws->y < 0) |
| 1300 | ws->y = 0; |
| 1301 | else if (ws->y + ws->height > screen_height) |
| 1302 | { |
| 1303 | if (horizontal_p) |
| 1304 | ws->y = previous_ws->y - ws->height; |
| 1305 | else |
| 1306 | ws->y = screen_height - ws->height; |
| 1307 | if (ws->y < 0) |
| 1308 | ws->y = 0; |
| 1309 | } |
| 1310 | } |
| 1311 | |
| 1312 | /* Updates old_stack from new_stack and redisplays. */ |
| 1313 | static void |
| 1314 | remap_menubar (mw) |
| 1315 | XlwMenuWidget mw; |
| 1316 | { |
| 1317 | int i; |
| 1318 | int last_same; |
| 1319 | XPoint selection_position; |
| 1320 | int old_depth = mw->menu.old_depth; |
| 1321 | int new_depth = mw->menu.new_depth; |
| 1322 | widget_value** old_stack; |
| 1323 | widget_value** new_stack; |
| 1324 | window_state* windows; |
| 1325 | widget_value* old_selection; |
| 1326 | widget_value* new_selection; |
| 1327 | |
| 1328 | /* Check that enough windows and old_stack are ready. */ |
| 1329 | make_windows_if_needed (mw, new_depth); |
| 1330 | make_old_stack_space (mw, new_depth); |
| 1331 | windows = mw->menu.windows; |
| 1332 | old_stack = mw->menu.old_stack; |
| 1333 | new_stack = mw->menu.new_stack; |
| 1334 | |
| 1335 | /* compute the last identical different entry */ |
| 1336 | for (i = 1; i < old_depth && i < new_depth; i++) |
| 1337 | if (old_stack [i] != new_stack [i]) |
| 1338 | break; |
| 1339 | last_same = i - 1; |
| 1340 | |
| 1341 | /* Memorize the previously selected item to be able to refresh it */ |
| 1342 | old_selection = last_same + 1 < old_depth ? old_stack [last_same + 1] : NULL; |
| 1343 | if (old_selection && !old_selection->enabled) |
| 1344 | old_selection = NULL; |
| 1345 | new_selection = last_same + 1 < new_depth ? new_stack [last_same + 1] : NULL; |
| 1346 | if (new_selection && !new_selection->enabled) |
| 1347 | new_selection = NULL; |
| 1348 | |
| 1349 | /* Call callback when the hightlighted item changes. */ |
| 1350 | if (old_selection || new_selection) |
| 1351 | XtCallCallbackList ((Widget)mw, mw->menu.highlight, |
| 1352 | (XtPointer) new_selection); |
| 1353 | |
| 1354 | /* updates old_state from new_state. It has to be done now because |
| 1355 | display_menu (called below) uses the old_stack to know what to display. */ |
| 1356 | for (i = last_same + 1; i < new_depth; i++) |
| 1357 | old_stack [i] = new_stack [i]; |
| 1358 | mw->menu.old_depth = new_depth; |
| 1359 | |
| 1360 | /* refresh the last selection */ |
| 1361 | selection_position.x = 0; |
| 1362 | selection_position.y = 0; |
| 1363 | display_menu (mw, last_same, new_selection == old_selection, |
| 1364 | &selection_position, NULL, NULL, old_selection, new_selection); |
| 1365 | |
| 1366 | /* Now place the new menus. */ |
| 1367 | for (i = last_same + 1; i < new_depth && new_stack[i]->contents; i++) |
| 1368 | { |
| 1369 | window_state *previous_ws = &windows[i - 1]; |
| 1370 | window_state *ws = &windows[i]; |
| 1371 | |
| 1372 | ws->x = (previous_ws->x + selection_position.x |
| 1373 | + mw->menu.shadow_thickness); |
| 1374 | if (mw->menu.horizontal && i == 1) |
| 1375 | ws->x += mw->menu.margin; |
| 1376 | |
| 1377 | #if 0 |
| 1378 | if (!mw->menu.horizontal || i > 1) |
| 1379 | ws->x += mw->menu.shadow_thickness; |
| 1380 | #endif |
| 1381 | |
| 1382 | ws->y = (previous_ws->y + selection_position.y |
| 1383 | + mw->menu.shadow_thickness); |
| 1384 | if (mw->menu.horizontal && i == 1) |
| 1385 | ws->y += mw->menu.margin; |
| 1386 | |
| 1387 | size_menu (mw, i); |
| 1388 | |
| 1389 | fit_to_screen (mw, ws, previous_ws, mw->menu.horizontal && i == 1); |
| 1390 | |
| 1391 | XClearWindow (XtDisplay (mw), ws->window); |
| 1392 | XMoveResizeWindow (XtDisplay (mw), ws->window, ws->x, ws->y, |
| 1393 | ws->width, ws->height); |
| 1394 | XMapRaised (XtDisplay (mw), ws->window); |
| 1395 | display_menu (mw, i, False, &selection_position, NULL, NULL, NULL, NULL); |
| 1396 | } |
| 1397 | |
| 1398 | /* unmap the menus that popped down */ |
| 1399 | for (i = new_depth - 1; i < old_depth; i++) |
| 1400 | if (i >= new_depth || (i > 0 && !new_stack[i]->contents)) |
| 1401 | XUnmapWindow (XtDisplay (mw), windows[i].window); |
| 1402 | } |
| 1403 | |
| 1404 | static Boolean |
| 1405 | motion_event_is_in_menu (mw, ev, level, relative_pos) |
| 1406 | XlwMenuWidget mw; |
| 1407 | XMotionEvent* ev; |
| 1408 | int level; |
| 1409 | XPoint* relative_pos; |
| 1410 | { |
| 1411 | window_state* ws = &mw->menu.windows [level]; |
| 1412 | int shadow = level == 0 ? 0 : mw->menu.shadow_thickness; |
| 1413 | int x = ws->x + shadow; |
| 1414 | int y = ws->y + shadow; |
| 1415 | relative_pos->x = ev->x_root - x; |
| 1416 | relative_pos->y = ev->y_root - y; |
| 1417 | return (x - shadow < ev->x_root && ev->x_root < x + ws->width |
| 1418 | && y - shadow < ev->y_root && ev->y_root < y + ws->height); |
| 1419 | } |
| 1420 | |
| 1421 | static Boolean |
| 1422 | map_event_to_widget_value (mw, ev, val, level) |
| 1423 | XlwMenuWidget mw; |
| 1424 | XMotionEvent* ev; |
| 1425 | widget_value** val; |
| 1426 | int* level; |
| 1427 | { |
| 1428 | int i; |
| 1429 | XPoint relative_pos; |
| 1430 | window_state* ws; |
| 1431 | |
| 1432 | *val = NULL; |
| 1433 | |
| 1434 | /* Find the window */ |
| 1435 | for (i = mw->menu.old_depth - 1; i >= 0; i--) |
| 1436 | { |
| 1437 | ws = &mw->menu.windows [i]; |
| 1438 | if (ws && motion_event_is_in_menu (mw, ev, i, &relative_pos)) |
| 1439 | { |
| 1440 | display_menu (mw, i, True, NULL, &relative_pos, val, NULL, NULL); |
| 1441 | |
| 1442 | if (*val) |
| 1443 | { |
| 1444 | *level = i + 1; |
| 1445 | return True; |
| 1446 | } |
| 1447 | } |
| 1448 | } |
| 1449 | return False; |
| 1450 | } |
| 1451 | |
| 1452 | \f/* Procedures */ |
| 1453 | static void |
| 1454 | make_drawing_gcs (mw) |
| 1455 | XlwMenuWidget mw; |
| 1456 | { |
| 1457 | XGCValues xgcv; |
| 1458 | float scale; |
| 1459 | |
| 1460 | xgcv.font = mw->menu.font->fid; |
| 1461 | xgcv.foreground = mw->menu.foreground; |
| 1462 | xgcv.background = mw->core.background_pixel; |
| 1463 | mw->menu.foreground_gc = XtGetGC ((Widget)mw, |
| 1464 | GCFont | GCForeground | GCBackground, |
| 1465 | &xgcv); |
| 1466 | |
| 1467 | xgcv.font = mw->menu.font->fid; |
| 1468 | xgcv.foreground = mw->menu.button_foreground; |
| 1469 | xgcv.background = mw->core.background_pixel; |
| 1470 | mw->menu.button_gc = XtGetGC ((Widget)mw, |
| 1471 | GCFont | GCForeground | GCBackground, |
| 1472 | &xgcv); |
| 1473 | |
| 1474 | xgcv.font = mw->menu.font->fid; |
| 1475 | xgcv.background = mw->core.background_pixel; |
| 1476 | |
| 1477 | #define BRIGHTNESS(color) (((color) & 0xff) + (((color) >> 8) & 0xff) + (((color) >> 16) & 0xff)) |
| 1478 | |
| 1479 | /* Allocate color for disabled menu-items. */ |
| 1480 | mw->menu.disabled_foreground = mw->menu.foreground; |
| 1481 | if (BRIGHTNESS(mw->menu.foreground) < BRIGHTNESS(mw->core.background_pixel)) |
| 1482 | scale = 2.3; |
| 1483 | else |
| 1484 | scale = 0.55; |
| 1485 | |
| 1486 | x_alloc_lighter_color_for_widget ((Widget) mw, XtDisplay ((Widget) mw), |
| 1487 | mw->core.colormap, |
| 1488 | &mw->menu.disabled_foreground, |
| 1489 | scale, |
| 1490 | 0x8000); |
| 1491 | |
| 1492 | if (mw->menu.foreground == mw->menu.disabled_foreground |
| 1493 | || mw->core.background_pixel == mw->menu.disabled_foreground) |
| 1494 | { |
| 1495 | /* Too few colors, use stipple. */ |
| 1496 | xgcv.foreground = mw->menu.foreground; |
| 1497 | xgcv.fill_style = FillStippled; |
| 1498 | xgcv.stipple = mw->menu.gray_pixmap; |
| 1499 | mw->menu.disabled_gc = XtGetGC ((Widget)mw, |
| 1500 | (GCFont | GCForeground | GCBackground |
| 1501 | | GCFillStyle | GCStipple), &xgcv); |
| 1502 | } |
| 1503 | else |
| 1504 | { |
| 1505 | /* Many colors available, use disabled pixel. */ |
| 1506 | xgcv.foreground = mw->menu.disabled_foreground; |
| 1507 | mw->menu.disabled_gc = XtGetGC ((Widget)mw, |
| 1508 | (GCFont | GCForeground | GCBackground), &xgcv); |
| 1509 | } |
| 1510 | |
| 1511 | xgcv.font = mw->menu.font->fid; |
| 1512 | xgcv.foreground = mw->menu.button_foreground; |
| 1513 | xgcv.background = mw->core.background_pixel; |
| 1514 | xgcv.fill_style = FillStippled; |
| 1515 | xgcv.stipple = mw->menu.gray_pixmap; |
| 1516 | mw->menu.inactive_button_gc = XtGetGC ((Widget)mw, |
| 1517 | (GCFont | GCForeground | GCBackground |
| 1518 | | GCFillStyle | GCStipple), &xgcv); |
| 1519 | |
| 1520 | xgcv.font = mw->menu.font->fid; |
| 1521 | xgcv.foreground = mw->core.background_pixel; |
| 1522 | xgcv.background = mw->menu.foreground; |
| 1523 | mw->menu.background_gc = XtGetGC ((Widget)mw, |
| 1524 | GCFont | GCForeground | GCBackground, |
| 1525 | &xgcv); |
| 1526 | } |
| 1527 | |
| 1528 | static void |
| 1529 | release_drawing_gcs (mw) |
| 1530 | XlwMenuWidget mw; |
| 1531 | { |
| 1532 | XtReleaseGC ((Widget) mw, mw->menu.foreground_gc); |
| 1533 | XtReleaseGC ((Widget) mw, mw->menu.button_gc); |
| 1534 | XtReleaseGC ((Widget) mw, mw->menu.disabled_gc); |
| 1535 | XtReleaseGC ((Widget) mw, mw->menu.inactive_button_gc); |
| 1536 | XtReleaseGC ((Widget) mw, mw->menu.background_gc); |
| 1537 | /* let's get some segvs if we try to use these... */ |
| 1538 | mw->menu.foreground_gc = (GC) -1; |
| 1539 | mw->menu.button_gc = (GC) -1; |
| 1540 | mw->menu.disabled_gc = (GC) -1; |
| 1541 | mw->menu.inactive_button_gc = (GC) -1; |
| 1542 | mw->menu.background_gc = (GC) -1; |
| 1543 | } |
| 1544 | |
| 1545 | #define MINL(x,y) ((((unsigned long) (x)) < ((unsigned long) (y))) \ |
| 1546 | ? ((unsigned long) (x)) : ((unsigned long) (y))) |
| 1547 | |
| 1548 | static void |
| 1549 | make_shadow_gcs (mw) |
| 1550 | XlwMenuWidget mw; |
| 1551 | { |
| 1552 | XGCValues xgcv; |
| 1553 | unsigned long pm = 0; |
| 1554 | Display *dpy = XtDisplay ((Widget) mw); |
| 1555 | Screen *screen = XtScreen ((Widget) mw); |
| 1556 | Colormap cmap = mw->core.colormap; |
| 1557 | XColor topc, botc; |
| 1558 | int top_frobbed = 0, bottom_frobbed = 0; |
| 1559 | |
| 1560 | mw->menu.free_top_shadow_color_p = 0; |
| 1561 | mw->menu.free_bottom_shadow_color_p = 0; |
| 1562 | |
| 1563 | if (mw->menu.top_shadow_color == -1) |
| 1564 | mw->menu.top_shadow_color = mw->core.background_pixel; |
| 1565 | else |
| 1566 | mw->menu.top_shadow_color = mw->menu.top_shadow_color; |
| 1567 | |
| 1568 | if (mw->menu.bottom_shadow_color == -1) |
| 1569 | mw->menu.bottom_shadow_color = mw->menu.foreground; |
| 1570 | else |
| 1571 | mw->menu.bottom_shadow_color = mw->menu.bottom_shadow_color; |
| 1572 | |
| 1573 | if (mw->menu.top_shadow_color == mw->core.background_pixel || |
| 1574 | mw->menu.top_shadow_color == mw->menu.foreground) |
| 1575 | { |
| 1576 | topc.pixel = mw->core.background_pixel; |
| 1577 | #ifdef emacs |
| 1578 | if (x_alloc_lighter_color_for_widget ((Widget) mw, dpy, cmap, |
| 1579 | &topc.pixel, |
| 1580 | 1.2, 0x8000)) |
| 1581 | #else |
| 1582 | XQueryColor (dpy, cmap, &topc); |
| 1583 | /* don't overflow/wrap! */ |
| 1584 | topc.red = MINL (65535, topc.red * 1.2); |
| 1585 | topc.green = MINL (65535, topc.green * 1.2); |
| 1586 | topc.blue = MINL (65535, topc.blue * 1.2); |
| 1587 | if (XAllocColor (dpy, cmap, &topc)) |
| 1588 | #endif |
| 1589 | { |
| 1590 | mw->menu.top_shadow_color = topc.pixel; |
| 1591 | mw->menu.free_top_shadow_color_p = 1; |
| 1592 | top_frobbed = 1; |
| 1593 | } |
| 1594 | } |
| 1595 | if (mw->menu.bottom_shadow_color == mw->menu.foreground || |
| 1596 | mw->menu.bottom_shadow_color == mw->core.background_pixel) |
| 1597 | { |
| 1598 | botc.pixel = mw->core.background_pixel; |
| 1599 | #ifdef emacs |
| 1600 | if (x_alloc_lighter_color_for_widget ((Widget) mw, dpy, cmap, |
| 1601 | &botc.pixel, |
| 1602 | 0.6, 0x4000)) |
| 1603 | #else |
| 1604 | XQueryColor (dpy, cmap, &botc); |
| 1605 | botc.red *= 0.6; |
| 1606 | botc.green *= 0.6; |
| 1607 | botc.blue *= 0.6; |
| 1608 | if (XAllocColor (dpy, cmap, &botc)) |
| 1609 | #endif |
| 1610 | { |
| 1611 | mw->menu.bottom_shadow_color = botc.pixel; |
| 1612 | mw->menu.free_bottom_shadow_color_p = 1; |
| 1613 | bottom_frobbed = 1; |
| 1614 | } |
| 1615 | } |
| 1616 | |
| 1617 | if (top_frobbed && bottom_frobbed) |
| 1618 | { |
| 1619 | if (topc.pixel == botc.pixel) |
| 1620 | { |
| 1621 | if (botc.pixel == mw->menu.foreground) |
| 1622 | { |
| 1623 | if (mw->menu.free_top_shadow_color_p) |
| 1624 | { |
| 1625 | x_free_dpy_colors (dpy, screen, cmap, |
| 1626 | &mw->menu.top_shadow_color, 1); |
| 1627 | mw->menu.free_top_shadow_color_p = 0; |
| 1628 | } |
| 1629 | mw->menu.top_shadow_color = mw->core.background_pixel; |
| 1630 | } |
| 1631 | else |
| 1632 | { |
| 1633 | if (mw->menu.free_bottom_shadow_color_p) |
| 1634 | { |
| 1635 | x_free_dpy_colors (dpy, screen, cmap, |
| 1636 | &mw->menu.bottom_shadow_color, 1); |
| 1637 | mw->menu.free_bottom_shadow_color_p = 0; |
| 1638 | } |
| 1639 | mw->menu.bottom_shadow_color = mw->menu.foreground; |
| 1640 | } |
| 1641 | } |
| 1642 | } |
| 1643 | |
| 1644 | if (!mw->menu.top_shadow_pixmap && |
| 1645 | mw->menu.top_shadow_color == mw->core.background_pixel) |
| 1646 | { |
| 1647 | mw->menu.top_shadow_pixmap = mw->menu.gray_pixmap; |
| 1648 | if (mw->menu.free_top_shadow_color_p) |
| 1649 | { |
| 1650 | x_free_dpy_colors (dpy, screen, cmap, &mw->menu.top_shadow_color, 1); |
| 1651 | mw->menu.free_top_shadow_color_p = 0; |
| 1652 | } |
| 1653 | mw->menu.top_shadow_color = mw->menu.foreground; |
| 1654 | } |
| 1655 | if (!mw->menu.bottom_shadow_pixmap && |
| 1656 | mw->menu.bottom_shadow_color == mw->core.background_pixel) |
| 1657 | { |
| 1658 | mw->menu.bottom_shadow_pixmap = mw->menu.gray_pixmap; |
| 1659 | if (mw->menu.free_bottom_shadow_color_p) |
| 1660 | { |
| 1661 | x_free_dpy_colors (dpy, screen, cmap, |
| 1662 | &mw->menu.bottom_shadow_color, 1); |
| 1663 | mw->menu.free_bottom_shadow_color_p = 0; |
| 1664 | } |
| 1665 | mw->menu.bottom_shadow_color = mw->menu.foreground; |
| 1666 | } |
| 1667 | |
| 1668 | xgcv.fill_style = FillStippled; |
| 1669 | xgcv.foreground = mw->menu.top_shadow_color; |
| 1670 | xgcv.stipple = mw->menu.top_shadow_pixmap; |
| 1671 | pm = (xgcv.stipple ? GCStipple|GCFillStyle : 0); |
| 1672 | mw->menu.shadow_top_gc = XtGetGC ((Widget)mw, GCForeground | pm, &xgcv); |
| 1673 | |
| 1674 | xgcv.foreground = mw->menu.bottom_shadow_color; |
| 1675 | xgcv.stipple = mw->menu.bottom_shadow_pixmap; |
| 1676 | pm = (xgcv.stipple ? GCStipple|GCFillStyle : 0); |
| 1677 | mw->menu.shadow_bottom_gc = XtGetGC ((Widget)mw, GCForeground | pm, &xgcv); |
| 1678 | } |
| 1679 | |
| 1680 | |
| 1681 | static void |
| 1682 | release_shadow_gcs (mw) |
| 1683 | XlwMenuWidget mw; |
| 1684 | { |
| 1685 | Display *dpy = XtDisplay ((Widget) mw); |
| 1686 | Screen *screen = XtScreen ((Widget) mw); |
| 1687 | Colormap cmap = mw->core.colormap; |
| 1688 | Pixel px[2]; |
| 1689 | int i = 0; |
| 1690 | |
| 1691 | if (mw->menu.free_top_shadow_color_p) |
| 1692 | px[i++] = mw->menu.top_shadow_color; |
| 1693 | if (mw->menu.free_bottom_shadow_color_p) |
| 1694 | px[i++] = mw->menu.bottom_shadow_color; |
| 1695 | if (i > 0) |
| 1696 | x_free_dpy_colors (dpy, screen, cmap, px, i); |
| 1697 | |
| 1698 | XtReleaseGC ((Widget) mw, mw->menu.shadow_top_gc); |
| 1699 | XtReleaseGC ((Widget) mw, mw->menu.shadow_bottom_gc); |
| 1700 | } |
| 1701 | |
| 1702 | static void |
| 1703 | XlwMenuInitialize (request, mw, args, num_args) |
| 1704 | Widget request; |
| 1705 | XlwMenuWidget mw; |
| 1706 | ArgList args; |
| 1707 | Cardinal *num_args; |
| 1708 | { |
| 1709 | /* Get the GCs and the widget size */ |
| 1710 | XSetWindowAttributes xswa; |
| 1711 | int mask; |
| 1712 | |
| 1713 | Window window = RootWindowOfScreen (DefaultScreenOfDisplay (XtDisplay (mw))); |
| 1714 | Display* display = XtDisplay (mw); |
| 1715 | |
| 1716 | #if 0 |
| 1717 | widget_value *tem = (widget_value *) XtMalloc (sizeof (widget_value)); |
| 1718 | |
| 1719 | /* _XtCreate is freeing the object that was passed to us, |
| 1720 | so make a copy that we will actually keep. */ |
| 1721 | lwlib_bcopy (mw->menu.contents, tem, sizeof (widget_value)); |
| 1722 | mw->menu.contents = tem; |
| 1723 | #endif |
| 1724 | |
| 1725 | /* mw->menu.cursor = XCreateFontCursor (display, mw->menu.cursor_shape); */ |
| 1726 | mw->menu.cursor = mw->menu.cursor_shape; |
| 1727 | |
| 1728 | mw->menu.gray_pixmap |
| 1729 | = XCreatePixmapFromBitmapData (display, window, gray_bitmap_bits, |
| 1730 | gray_bitmap_width, gray_bitmap_height, |
| 1731 | (unsigned long)1, (unsigned long)0, 1); |
| 1732 | |
| 1733 | /* I don't understand why this ends up 0 sometimes, |
| 1734 | but it does. This kludge works around it. |
| 1735 | Can anyone find a real fix? -- rms. */ |
| 1736 | if (mw->menu.font == 0) |
| 1737 | mw->menu.font = xlwmenu_default_font; |
| 1738 | |
| 1739 | make_drawing_gcs (mw); |
| 1740 | make_shadow_gcs (mw); |
| 1741 | |
| 1742 | xswa.background_pixel = mw->core.background_pixel; |
| 1743 | xswa.border_pixel = mw->core.border_pixel; |
| 1744 | mask = CWBackPixel | CWBorderPixel; |
| 1745 | |
| 1746 | mw->menu.popped_up = False; |
| 1747 | |
| 1748 | mw->menu.old_depth = 1; |
| 1749 | mw->menu.old_stack = (widget_value**)XtMalloc (sizeof (widget_value*)); |
| 1750 | mw->menu.old_stack_length = 1; |
| 1751 | mw->menu.old_stack [0] = mw->menu.contents; |
| 1752 | |
| 1753 | mw->menu.new_depth = 0; |
| 1754 | mw->menu.new_stack = 0; |
| 1755 | mw->menu.new_stack_length = 0; |
| 1756 | push_new_stack (mw, mw->menu.contents); |
| 1757 | |
| 1758 | mw->menu.windows = (window_state*)XtMalloc (sizeof (window_state)); |
| 1759 | mw->menu.windows_length = 1; |
| 1760 | mw->menu.windows [0].x = 0; |
| 1761 | mw->menu.windows [0].y = 0; |
| 1762 | mw->menu.windows [0].width = 0; |
| 1763 | mw->menu.windows [0].height = 0; |
| 1764 | size_menu (mw, 0); |
| 1765 | |
| 1766 | mw->core.width = mw->menu.windows [0].width; |
| 1767 | mw->core.height = mw->menu.windows [0].height; |
| 1768 | } |
| 1769 | |
| 1770 | static void |
| 1771 | XlwMenuClassInitialize () |
| 1772 | { |
| 1773 | } |
| 1774 | |
| 1775 | static void |
| 1776 | XlwMenuRealize (w, valueMask, attributes) |
| 1777 | Widget w; |
| 1778 | Mask *valueMask; |
| 1779 | XSetWindowAttributes *attributes; |
| 1780 | { |
| 1781 | XlwMenuWidget mw = (XlwMenuWidget)w; |
| 1782 | XSetWindowAttributes xswa; |
| 1783 | int mask; |
| 1784 | |
| 1785 | (*xlwMenuWidgetClass->core_class.superclass->core_class.realize) |
| 1786 | (w, valueMask, attributes); |
| 1787 | |
| 1788 | xswa.save_under = True; |
| 1789 | xswa.cursor = mw->menu.cursor_shape; |
| 1790 | mask = CWSaveUnder | CWCursor; |
| 1791 | XChangeWindowAttributes (XtDisplay (w), XtWindow (w), mask, &xswa); |
| 1792 | |
| 1793 | mw->menu.windows [0].window = XtWindow (w); |
| 1794 | mw->menu.windows [0].x = w->core.x; |
| 1795 | mw->menu.windows [0].y = w->core.y; |
| 1796 | mw->menu.windows [0].width = w->core.width; |
| 1797 | mw->menu.windows [0].height = w->core.height; |
| 1798 | } |
| 1799 | |
| 1800 | /* Only the toplevel menubar/popup is a widget so it's the only one that |
| 1801 | receives expose events through Xt. So we repaint all the other panes |
| 1802 | when receiving an Expose event. */ |
| 1803 | static void |
| 1804 | XlwMenuRedisplay (w, ev, region) |
| 1805 | Widget w; |
| 1806 | XEvent* ev; |
| 1807 | Region region; |
| 1808 | { |
| 1809 | XlwMenuWidget mw = (XlwMenuWidget)w; |
| 1810 | int i; |
| 1811 | |
| 1812 | /* If we have a depth beyond 1, it's because a submenu was displayed. |
| 1813 | If the submenu has been destroyed, set the depth back to 1. */ |
| 1814 | if (submenu_destroyed) |
| 1815 | { |
| 1816 | mw->menu.old_depth = 1; |
| 1817 | submenu_destroyed = 0; |
| 1818 | } |
| 1819 | |
| 1820 | for (i = 0; i < mw->menu.old_depth; i++) |
| 1821 | display_menu (mw, i, False, NULL, NULL, NULL, NULL, NULL); |
| 1822 | } |
| 1823 | |
| 1824 | |
| 1825 | /* Part of a hack to make the menu redisplay when a tooltip frame |
| 1826 | over a menu item is unmapped. */ |
| 1827 | |
| 1828 | void |
| 1829 | xlwmenu_redisplay (w) |
| 1830 | Widget w; |
| 1831 | { |
| 1832 | XlwMenuRedisplay (w, NULL, None); |
| 1833 | } |
| 1834 | |
| 1835 | static void |
| 1836 | XlwMenuDestroy (w) |
| 1837 | Widget w; |
| 1838 | { |
| 1839 | int i; |
| 1840 | XlwMenuWidget mw = (XlwMenuWidget) w; |
| 1841 | |
| 1842 | if (pointer_grabbed) |
| 1843 | ungrab_all ((Widget)w, CurrentTime); |
| 1844 | pointer_grabbed = 0; |
| 1845 | |
| 1846 | submenu_destroyed = 1; |
| 1847 | |
| 1848 | release_drawing_gcs (mw); |
| 1849 | release_shadow_gcs (mw); |
| 1850 | |
| 1851 | /* this doesn't come from the resource db but is created explicitly |
| 1852 | so we must free it ourselves. */ |
| 1853 | XFreePixmap (XtDisplay (mw), mw->menu.gray_pixmap); |
| 1854 | mw->menu.gray_pixmap = (Pixmap) -1; |
| 1855 | |
| 1856 | #if 0 |
| 1857 | /* Do free mw->menu.contents because nowadays we copy it |
| 1858 | during initialization. */ |
| 1859 | XtFree (mw->menu.contents); |
| 1860 | #endif |
| 1861 | |
| 1862 | /* Don't free mw->menu.contents because that comes from our creator. |
| 1863 | The `*_stack' elements are just pointers into `contents' so leave |
| 1864 | that alone too. But free the stacks themselves. */ |
| 1865 | if (mw->menu.old_stack) XtFree ((char *) mw->menu.old_stack); |
| 1866 | if (mw->menu.new_stack) XtFree ((char *) mw->menu.new_stack); |
| 1867 | |
| 1868 | /* Remember, you can't free anything that came from the resource |
| 1869 | database. This includes: |
| 1870 | mw->menu.cursor |
| 1871 | mw->menu.top_shadow_pixmap |
| 1872 | mw->menu.bottom_shadow_pixmap |
| 1873 | mw->menu.font |
| 1874 | Also the color cells of top_shadow_color, bottom_shadow_color, |
| 1875 | foreground, and button_foreground will never be freed until this |
| 1876 | client exits. Nice, eh? |
| 1877 | */ |
| 1878 | |
| 1879 | /* start from 1 because the one in slot 0 is w->core.window */ |
| 1880 | for (i = 1; i < mw->menu.windows_length; i++) |
| 1881 | XDestroyWindow (XtDisplay (mw), mw->menu.windows [i].window); |
| 1882 | if (mw->menu.windows) |
| 1883 | XtFree ((char *) mw->menu.windows); |
| 1884 | } |
| 1885 | |
| 1886 | static Boolean |
| 1887 | XlwMenuSetValues (current, request, new) |
| 1888 | Widget current; |
| 1889 | Widget request; |
| 1890 | Widget new; |
| 1891 | { |
| 1892 | XlwMenuWidget oldmw = (XlwMenuWidget)current; |
| 1893 | XlwMenuWidget newmw = (XlwMenuWidget)new; |
| 1894 | Boolean redisplay = False; |
| 1895 | int i; |
| 1896 | |
| 1897 | if (newmw->menu.contents |
| 1898 | && newmw->menu.contents->contents |
| 1899 | && newmw->menu.contents->contents->change >= VISIBLE_CHANGE) |
| 1900 | redisplay = True; |
| 1901 | /* Do redisplay if the contents are entirely eliminated. */ |
| 1902 | if (newmw->menu.contents |
| 1903 | && newmw->menu.contents->contents == 0 |
| 1904 | && newmw->menu.contents->change >= VISIBLE_CHANGE) |
| 1905 | redisplay = True; |
| 1906 | |
| 1907 | if (newmw->core.background_pixel != oldmw->core.background_pixel |
| 1908 | || newmw->menu.foreground != oldmw->menu.foreground |
| 1909 | || newmw->menu.font != oldmw->menu.font) |
| 1910 | { |
| 1911 | release_drawing_gcs (newmw); |
| 1912 | make_drawing_gcs (newmw); |
| 1913 | |
| 1914 | release_shadow_gcs (newmw); |
| 1915 | /* Cause the shadow colors to be recalculated. */ |
| 1916 | newmw->menu.top_shadow_color = -1; |
| 1917 | newmw->menu.bottom_shadow_color = -1; |
| 1918 | make_shadow_gcs (newmw); |
| 1919 | |
| 1920 | redisplay = True; |
| 1921 | |
| 1922 | if (XtIsRealized (current)) |
| 1923 | /* If the menu is currently displayed, change the display. */ |
| 1924 | for (i = 0; i < oldmw->menu.windows_length; i++) |
| 1925 | { |
| 1926 | XSetWindowBackground (XtDisplay (oldmw), |
| 1927 | oldmw->menu.windows [i].window, |
| 1928 | newmw->core.background_pixel); |
| 1929 | /* clear windows and generate expose events */ |
| 1930 | XClearArea (XtDisplay (oldmw), oldmw->menu.windows[i].window, |
| 1931 | 0, 0, 0, 0, True); |
| 1932 | } |
| 1933 | } |
| 1934 | |
| 1935 | return redisplay; |
| 1936 | } |
| 1937 | |
| 1938 | static void |
| 1939 | XlwMenuResize (w) |
| 1940 | Widget w; |
| 1941 | { |
| 1942 | XlwMenuWidget mw = (XlwMenuWidget)w; |
| 1943 | |
| 1944 | if (mw->menu.popped_up) |
| 1945 | { |
| 1946 | /* Don't allow the popup menu to resize itself. */ |
| 1947 | mw->core.width = mw->menu.windows [0].width; |
| 1948 | mw->core.height = mw->menu.windows [0].height; |
| 1949 | mw->core.parent->core.width = mw->core.width ; |
| 1950 | mw->core.parent->core.height = mw->core.height ; |
| 1951 | } |
| 1952 | else |
| 1953 | { |
| 1954 | mw->menu.windows [0].width = mw->core.width; |
| 1955 | mw->menu.windows [0].height = mw->core.height; |
| 1956 | } |
| 1957 | } |
| 1958 | |
| 1959 | \f/* Action procedures */ |
| 1960 | static void |
| 1961 | handle_single_motion_event (mw, ev) |
| 1962 | XlwMenuWidget mw; |
| 1963 | XMotionEvent* ev; |
| 1964 | { |
| 1965 | widget_value* val; |
| 1966 | int level; |
| 1967 | |
| 1968 | if (!map_event_to_widget_value (mw, ev, &val, &level)) |
| 1969 | pop_new_stack_if_no_contents (mw); |
| 1970 | else |
| 1971 | set_new_state (mw, val, level); |
| 1972 | remap_menubar (mw); |
| 1973 | |
| 1974 | /* Sync with the display. Makes it feel better on X terms. */ |
| 1975 | XSync (XtDisplay (mw), False); |
| 1976 | } |
| 1977 | |
| 1978 | static void |
| 1979 | handle_motion_event (mw, ev) |
| 1980 | XlwMenuWidget mw; |
| 1981 | XMotionEvent* ev; |
| 1982 | { |
| 1983 | int x = ev->x_root; |
| 1984 | int y = ev->y_root; |
| 1985 | int state = ev->state; |
| 1986 | |
| 1987 | handle_single_motion_event (mw, ev); |
| 1988 | |
| 1989 | /* allow motion events to be generated again */ |
| 1990 | if (ev->is_hint |
| 1991 | && XQueryPointer (XtDisplay (mw), ev->window, |
| 1992 | &ev->root, &ev->subwindow, |
| 1993 | &ev->x_root, &ev->y_root, |
| 1994 | &ev->x, &ev->y, |
| 1995 | &ev->state) |
| 1996 | && ev->state == state |
| 1997 | && (ev->x_root != x || ev->y_root != y)) |
| 1998 | handle_single_motion_event (mw, ev); |
| 1999 | } |
| 2000 | |
| 2001 | static void |
| 2002 | Start (w, ev, params, num_params) |
| 2003 | Widget w; |
| 2004 | XEvent *ev; |
| 2005 | String *params; |
| 2006 | Cardinal *num_params; |
| 2007 | { |
| 2008 | XlwMenuWidget mw = (XlwMenuWidget)w; |
| 2009 | |
| 2010 | if (!mw->menu.popped_up) |
| 2011 | { |
| 2012 | menu_post_event = *ev; |
| 2013 | pop_up_menu (mw, (XButtonPressedEvent*) ev); |
| 2014 | } |
| 2015 | else |
| 2016 | { |
| 2017 | /* If we push a button while the menu is posted semipermanently, |
| 2018 | releasing the button should always pop the menu down. */ |
| 2019 | next_release_must_exit = 1; |
| 2020 | |
| 2021 | /* notes the absolute position of the menubar window */ |
| 2022 | mw->menu.windows [0].x = ev->xmotion.x_root - ev->xmotion.x; |
| 2023 | mw->menu.windows [0].y = ev->xmotion.y_root - ev->xmotion.y; |
| 2024 | |
| 2025 | /* handles the down like a move, slots are compatible */ |
| 2026 | handle_motion_event (mw, &ev->xmotion); |
| 2027 | } |
| 2028 | } |
| 2029 | |
| 2030 | static void |
| 2031 | Drag (w, ev, params, num_params) |
| 2032 | Widget w; |
| 2033 | XEvent *ev; |
| 2034 | String *params; |
| 2035 | Cardinal *num_params; |
| 2036 | { |
| 2037 | XlwMenuWidget mw = (XlwMenuWidget)w; |
| 2038 | if (mw->menu.popped_up) |
| 2039 | handle_motion_event (mw, &ev->xmotion); |
| 2040 | } |
| 2041 | |
| 2042 | /* Do nothing. |
| 2043 | This is how we handle presses and releases of modifier keys. */ |
| 2044 | static void |
| 2045 | Nothing (w, ev, params, num_params) |
| 2046 | Widget w; |
| 2047 | XEvent *ev; |
| 2048 | String *params; |
| 2049 | Cardinal *num_params; |
| 2050 | { |
| 2051 | } |
| 2052 | |
| 2053 | widget_value * |
| 2054 | find_first_selectable (mw, item) |
| 2055 | XlwMenuWidget mw; |
| 2056 | widget_value *item; |
| 2057 | { |
| 2058 | widget_value *current = item; |
| 2059 | enum menu_separator separator; |
| 2060 | |
| 2061 | while (lw_separator_p (current->name, &separator, 0) || !current->enabled) |
| 2062 | if (current->next) |
| 2063 | current=current->next; |
| 2064 | else |
| 2065 | return NULL; |
| 2066 | |
| 2067 | return current; |
| 2068 | } |
| 2069 | |
| 2070 | widget_value * |
| 2071 | find_next_selectable (mw, item) |
| 2072 | XlwMenuWidget mw; |
| 2073 | widget_value *item; |
| 2074 | { |
| 2075 | widget_value *current = item; |
| 2076 | enum menu_separator separator; |
| 2077 | |
| 2078 | while (current->next && (current=current->next) && |
| 2079 | (lw_separator_p (current->name, &separator, 0) || !current->enabled)) |
| 2080 | ; |
| 2081 | |
| 2082 | if (current == item) |
| 2083 | { |
| 2084 | if (mw->menu.old_depth < 2) |
| 2085 | return current; |
| 2086 | current = mw->menu.old_stack [mw->menu.old_depth - 2]->contents; |
| 2087 | |
| 2088 | while (lw_separator_p (current->name, &separator, 0) || !current->enabled) |
| 2089 | { |
| 2090 | if (current->next) |
| 2091 | current=current->next; |
| 2092 | |
| 2093 | if (current == item) |
| 2094 | break; |
| 2095 | } |
| 2096 | |
| 2097 | } |
| 2098 | |
| 2099 | return current; |
| 2100 | } |
| 2101 | |
| 2102 | widget_value * |
| 2103 | find_prev_selectable (mw, item) |
| 2104 | XlwMenuWidget mw; |
| 2105 | widget_value *item; |
| 2106 | { |
| 2107 | widget_value *current = item; |
| 2108 | widget_value *prev = item; |
| 2109 | |
| 2110 | while ((current=find_next_selectable (mw, current)) != item) |
| 2111 | { |
| 2112 | if (prev == current) |
| 2113 | break; |
| 2114 | prev=current; |
| 2115 | } |
| 2116 | |
| 2117 | return prev; |
| 2118 | } |
| 2119 | |
| 2120 | static void |
| 2121 | Down (w, ev, params, num_params) |
| 2122 | Widget w; |
| 2123 | XEvent *ev; |
| 2124 | String *params; |
| 2125 | Cardinal *num_params; |
| 2126 | { |
| 2127 | XlwMenuWidget mw = (XlwMenuWidget) w; |
| 2128 | widget_value* selected_item = mw->menu.old_stack [mw->menu.old_depth - 1]; |
| 2129 | |
| 2130 | /* Inside top-level menu-bar? */ |
| 2131 | if (mw->menu.old_depth == 2) |
| 2132 | /* When <down> in the menu-bar is pressed, display the corresponding |
| 2133 | sub-menu and select the first selectable menu item there. */ |
| 2134 | set_new_state (mw, find_first_selectable (mw, selected_item->contents), mw->menu.old_depth); |
| 2135 | else |
| 2136 | /* Highlight next possible (enabled and not separator) menu item. */ |
| 2137 | set_new_state (mw, find_next_selectable (mw, selected_item), mw->menu.old_depth - 1); |
| 2138 | |
| 2139 | remap_menubar (mw); |
| 2140 | } |
| 2141 | |
| 2142 | static void |
| 2143 | Up (w, ev, params, num_params) |
| 2144 | Widget w; |
| 2145 | XEvent *ev; |
| 2146 | String *params; |
| 2147 | Cardinal *num_params; |
| 2148 | { |
| 2149 | XlwMenuWidget mw = (XlwMenuWidget) w; |
| 2150 | widget_value* selected_item = mw->menu.old_stack [mw->menu.old_depth - 1]; |
| 2151 | |
| 2152 | /* Inside top-level menu-bar? */ |
| 2153 | if (mw->menu.old_depth == 2) |
| 2154 | { |
| 2155 | /* FIXME: this is tricky. <up> in the menu-bar should select the |
| 2156 | last selectable item in the list. So we select the first |
| 2157 | selectable one and find the previous selectable item. Is there |
| 2158 | a better way? */ |
| 2159 | set_new_state (mw, find_first_selectable (mw, selected_item->contents), mw->menu.old_depth); |
| 2160 | remap_menubar (mw); |
| 2161 | selected_item = mw->menu.old_stack [mw->menu.old_depth - 1]; |
| 2162 | set_new_state (mw, find_prev_selectable (mw, selected_item), mw->menu.old_depth - 1); |
| 2163 | } |
| 2164 | else |
| 2165 | /* Highlight previous (enabled and not separator) menu item. */ |
| 2166 | set_new_state (mw, find_prev_selectable (mw, selected_item), mw->menu.old_depth - 1); |
| 2167 | |
| 2168 | remap_menubar (mw); |
| 2169 | } |
| 2170 | |
| 2171 | static void |
| 2172 | Left (w, ev, params, num_params) |
| 2173 | Widget w; |
| 2174 | XEvent *ev; |
| 2175 | String *params; |
| 2176 | Cardinal *num_params; |
| 2177 | { |
| 2178 | XlwMenuWidget mw = (XlwMenuWidget) w; |
| 2179 | widget_value* selected_item = mw->menu.old_stack [mw->menu.old_depth - 1]; |
| 2180 | |
| 2181 | /* Inside top-level menu-bar? */ |
| 2182 | if (mw->menu.old_depth == 2) |
| 2183 | /* When <left> in the menu-bar is pressed, display the previous item on |
| 2184 | the menu-bar. If the current item is the first one, highlight the |
| 2185 | last item in the menubar (probably Help). */ |
| 2186 | set_new_state (mw, find_prev_selectable (mw, selected_item), mw->menu.old_depth - 1); |
| 2187 | else if (mw->menu.old_depth == 1 |
| 2188 | && selected_item->contents) /* Is this menu item expandable? */ |
| 2189 | { |
| 2190 | set_new_state (mw, selected_item->contents, mw->menu.old_depth); |
| 2191 | remap_menubar (mw); |
| 2192 | selected_item = mw->menu.old_stack [mw->menu.old_depth - 1]; |
| 2193 | if (!selected_item->enabled && find_first_selectable (mw, selected_item)) |
| 2194 | set_new_state (mw, find_first_selectable (mw, selected_item), mw->menu.old_depth - 1); |
| 2195 | } |
| 2196 | |
| 2197 | else |
| 2198 | { |
| 2199 | pop_new_stack_if_no_contents (mw); |
| 2200 | set_new_state (mw, mw->menu.old_stack [mw->menu.old_depth - 2], mw->menu.old_depth - 2); |
| 2201 | } |
| 2202 | |
| 2203 | remap_menubar (mw); |
| 2204 | } |
| 2205 | |
| 2206 | static void |
| 2207 | Right (w, ev, params, num_params) |
| 2208 | Widget w; |
| 2209 | XEvent *ev; |
| 2210 | String *params; |
| 2211 | Cardinal *num_params; |
| 2212 | { |
| 2213 | XlwMenuWidget mw = (XlwMenuWidget) w; |
| 2214 | widget_value* selected_item = mw->menu.old_stack [mw->menu.old_depth - 1]; |
| 2215 | |
| 2216 | /* Inside top-level menu-bar? */ |
| 2217 | if (mw->menu.old_depth == 2) |
| 2218 | /* When <right> in the menu-bar is pressed, display the next item on |
| 2219 | the menu-bar. If the current item is the last one, highlight the |
| 2220 | first item (probably File). */ |
| 2221 | set_new_state (mw, find_next_selectable (mw, selected_item), mw->menu.old_depth - 1); |
| 2222 | else if (selected_item->contents) /* Is this menu item expandable? */ |
| 2223 | { |
| 2224 | set_new_state (mw, selected_item->contents, mw->menu.old_depth); |
| 2225 | remap_menubar (mw); |
| 2226 | selected_item = mw->menu.old_stack [mw->menu.old_depth - 1]; |
| 2227 | if (!selected_item->enabled && find_first_selectable (mw, selected_item)) |
| 2228 | set_new_state (mw, find_first_selectable (mw, selected_item), mw->menu.old_depth - 1); |
| 2229 | } |
| 2230 | else |
| 2231 | { |
| 2232 | pop_new_stack_if_no_contents (mw); |
| 2233 | set_new_state (mw, mw->menu.old_stack [mw->menu.old_depth - 2], mw->menu.old_depth - 2); |
| 2234 | } |
| 2235 | |
| 2236 | remap_menubar (mw); |
| 2237 | } |
| 2238 | |
| 2239 | /* Handle key press and release events while menu is popped up. |
| 2240 | Our action is to get rid of the menu. */ |
| 2241 | static void |
| 2242 | Key (w, ev, params, num_params) |
| 2243 | Widget w; |
| 2244 | XEvent *ev; |
| 2245 | String *params; |
| 2246 | Cardinal *num_params; |
| 2247 | { |
| 2248 | XlwMenuWidget mw = (XlwMenuWidget)w; |
| 2249 | |
| 2250 | /* Pop down everything. */ |
| 2251 | mw->menu.new_depth = 1; |
| 2252 | remap_menubar (mw); |
| 2253 | |
| 2254 | if (mw->menu.popped_up) |
| 2255 | { |
| 2256 | mw->menu.popped_up = False; |
| 2257 | ungrab_all ((Widget)mw, ev->xmotion.time); |
| 2258 | if (XtIsShell (XtParent ((Widget) mw))) |
| 2259 | XtPopdown (XtParent ((Widget) mw)); |
| 2260 | else |
| 2261 | { |
| 2262 | XtRemoveGrab ((Widget) mw); |
| 2263 | display_menu (mw, 0, False, NULL, NULL, NULL, NULL, NULL); |
| 2264 | } |
| 2265 | } |
| 2266 | |
| 2267 | /* callback */ |
| 2268 | XtCallCallbackList ((Widget)mw, mw->menu.select, (XtPointer)0); |
| 2269 | } |
| 2270 | |
| 2271 | static void |
| 2272 | Select (w, ev, params, num_params) |
| 2273 | Widget w; |
| 2274 | XEvent *ev; |
| 2275 | String *params; |
| 2276 | Cardinal *num_params; |
| 2277 | { |
| 2278 | XlwMenuWidget mw = (XlwMenuWidget)w; |
| 2279 | widget_value* selected_item = mw->menu.old_stack [mw->menu.old_depth - 1]; |
| 2280 | |
| 2281 | /* If user releases the button quickly, without selecting anything, |
| 2282 | after the initial down-click that brought the menu up, |
| 2283 | do nothing. */ |
| 2284 | if ((selected_item == 0 |
| 2285 | || ((widget_value *) selected_item)->call_data == 0) |
| 2286 | && !next_release_must_exit |
| 2287 | && (ev->xbutton.time - menu_post_event.xbutton.time |
| 2288 | < XtGetMultiClickTime (XtDisplay (w)))) |
| 2289 | return; |
| 2290 | |
| 2291 | /* pop down everything. */ |
| 2292 | mw->menu.new_depth = 1; |
| 2293 | remap_menubar (mw); |
| 2294 | |
| 2295 | if (mw->menu.popped_up) |
| 2296 | { |
| 2297 | mw->menu.popped_up = False; |
| 2298 | ungrab_all ((Widget)mw, ev->xmotion.time); |
| 2299 | if (XtIsShell (XtParent ((Widget) mw))) |
| 2300 | XtPopdown (XtParent ((Widget) mw)); |
| 2301 | else |
| 2302 | { |
| 2303 | XtRemoveGrab ((Widget) mw); |
| 2304 | display_menu (mw, 0, False, NULL, NULL, NULL, NULL, NULL); |
| 2305 | } |
| 2306 | } |
| 2307 | |
| 2308 | /* callback */ |
| 2309 | XtCallCallbackList ((Widget)mw, mw->menu.select, (XtPointer)selected_item); |
| 2310 | } |
| 2311 | |
| 2312 | |
| 2313 | \f/* Special code to pop-up a menu */ |
| 2314 | void |
| 2315 | pop_up_menu (mw, event) |
| 2316 | XlwMenuWidget mw; |
| 2317 | XButtonPressedEvent* event; |
| 2318 | { |
| 2319 | int x = event->x_root; |
| 2320 | int y = event->y_root; |
| 2321 | int w; |
| 2322 | int h; |
| 2323 | int borderwidth = mw->menu.shadow_thickness; |
| 2324 | Screen* screen = XtScreen (mw); |
| 2325 | Display *display = XtDisplay (mw); |
| 2326 | int count; |
| 2327 | |
| 2328 | next_release_must_exit = 0; |
| 2329 | |
| 2330 | XtCallCallbackList ((Widget)mw, mw->menu.open, NULL); |
| 2331 | |
| 2332 | if (XtIsShell (XtParent ((Widget)mw))) |
| 2333 | size_menu (mw, 0); |
| 2334 | |
| 2335 | w = mw->menu.windows [0].width; |
| 2336 | h = mw->menu.windows [0].height; |
| 2337 | |
| 2338 | x -= borderwidth; |
| 2339 | y -= borderwidth; |
| 2340 | if (x < borderwidth) |
| 2341 | x = borderwidth; |
| 2342 | if (x + w + 2 * borderwidth > WidthOfScreen (screen)) |
| 2343 | x = WidthOfScreen (screen) - w - 2 * borderwidth; |
| 2344 | if (y < borderwidth) |
| 2345 | y = borderwidth; |
| 2346 | if (y + h + 2 * borderwidth> HeightOfScreen (screen)) |
| 2347 | y = HeightOfScreen (screen) - h - 2 * borderwidth; |
| 2348 | |
| 2349 | mw->menu.popped_up = True; |
| 2350 | if (XtIsShell (XtParent ((Widget)mw))) |
| 2351 | { |
| 2352 | XtConfigureWidget (XtParent ((Widget)mw), x, y, w, h, |
| 2353 | XtParent ((Widget)mw)->core.border_width); |
| 2354 | XtPopup (XtParent ((Widget)mw), XtGrabExclusive); |
| 2355 | display_menu (mw, 0, False, NULL, NULL, NULL, NULL, NULL); |
| 2356 | mw->menu.windows [0].x = x + borderwidth; |
| 2357 | mw->menu.windows [0].y = y + borderwidth; |
| 2358 | } |
| 2359 | else |
| 2360 | { |
| 2361 | XEvent *ev = (XEvent *) event; |
| 2362 | |
| 2363 | XtAddGrab ((Widget) mw, True, True); |
| 2364 | |
| 2365 | /* notes the absolute position of the menubar window */ |
| 2366 | mw->menu.windows [0].x = ev->xmotion.x_root - ev->xmotion.x; |
| 2367 | mw->menu.windows [0].y = ev->xmotion.y_root - ev->xmotion.y; |
| 2368 | } |
| 2369 | |
| 2370 | #ifdef emacs |
| 2371 | count = x_catch_errors (display); |
| 2372 | #endif |
| 2373 | if (XtGrabPointer ((Widget)mw, False, |
| 2374 | (PointerMotionMask |
| 2375 | | PointerMotionHintMask |
| 2376 | | ButtonReleaseMask |
| 2377 | | ButtonPressMask), |
| 2378 | GrabModeAsync, GrabModeAsync, None, |
| 2379 | mw->menu.cursor_shape, |
| 2380 | event->time) == Success) |
| 2381 | { |
| 2382 | if (! GRAB_KEYBOARD |
| 2383 | || XtGrabKeyboard ((Widget)mw, False, GrabModeAsync, |
| 2384 | GrabModeAsync, event->time) == Success) |
| 2385 | { |
| 2386 | XtSetKeyboardFocus((Widget)mw, None); |
| 2387 | pointer_grabbed = 1; |
| 2388 | } |
| 2389 | else |
| 2390 | XtUngrabPointer ((Widget)mw, event->time); |
| 2391 | } |
| 2392 | |
| 2393 | #ifdef emacs |
| 2394 | if (x_had_errors_p (display)) |
| 2395 | { |
| 2396 | pointer_grabbed = 0; |
| 2397 | XtUngrabPointer ((Widget)mw, event->time); |
| 2398 | } |
| 2399 | x_uncatch_errors (display, count); |
| 2400 | #endif |
| 2401 | |
| 2402 | handle_motion_event (mw, (XMotionEvent*)event); |
| 2403 | } |