1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628
|
/* The lwlib interface to "xlwmenu" menus.
Copyright (C) 1992, 1994 Lucid, Inc.
This file is part of the Lucid Widget Library.
The Lucid Widget Library is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
The Lucid Widget Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with XEmacs; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <config.h>
#include <stdlib.h> /* for abort () */
#include <stdio.h> /* for abort () */
#include <limits.h>
#include "lwlib-Xlw.h"
#include "lwlib-utils.h"
#include <X11/StringDefs.h>
#include <X11/IntrinsicP.h>
#include <X11/ObjectP.h>
#include <X11/CompositeP.h>
#include <X11/Shell.h>
#ifdef HAVE_WIDGETS
#include "../src/EmacsManager.h"
#endif
#ifdef LWLIB_MENUBARS_LUCID
#include "xlwmenu.h"
#endif
#ifdef LWLIB_SCROLLBARS_LUCID
#include "xlwscrollbar.h"
#endif
#ifdef LWLIB_TABS_LUCID
#ifdef NEED_MOTIF
#include "lwlib-Xm.h"
#endif
#ifdef NEED_ATHENA
#include "lwlib-Xaw.h"
#endif
#include "../src/xmu.h"
#include "xlwtabs.h"
#endif
#include <X11/Intrinsic.h>
#include <X11/StringDefs.h>
#include <X11/Shell.h>
#include <X11/Xaw/Form.h>
#include <X11/Xaw/Command.h>
#ifdef LWLIB_MENUBARS_LUCID
/* Menu callbacks */
static void
pre_hook (Widget w, XtPointer client_data, XtPointer call_data)
{
widget_instance* instance = (widget_instance*)client_data;
widget_value* val;
if (w->core.being_destroyed)
return;
val = lw_get_widget_value_for_widget (instance, w);
#if 0
/* #### - this code used to (for some random back_asswards reason) pass
the expression below in the call_data slot. For incremental menu
construction, this needs to go. I can't even figure out why it was done
this way in the first place...it's just a historical weirdism. --Stig */
call_data = (val ? val->call_data : NULL);
#endif
if (val && val->call_data)
abort(); /* #### - the call_data for the top_level
"menubar" widget_value used to be passed
back to the pre_hook. */
if (instance->info->pre_activate_cb)
instance->info->pre_activate_cb (w, instance->info->id, call_data);
}
static void
pick_hook (Widget w, XtPointer client_data, XtPointer call_data)
{
widget_instance* instance = (widget_instance*)client_data;
widget_value* contents_val = (widget_value*)call_data;
widget_value* widget_val;
XtPointer widget_arg;
LWLIB_ID id;
lw_callback post_activate_cb;
if (w->core.being_destroyed)
return;
/* Grab these values before running any functions, in case running
the selection_cb causes the widget to be destroyed. */
id = instance->info->id;
post_activate_cb = instance->info->post_activate_cb;
widget_val = lw_get_widget_value_for_widget (instance, w);
widget_arg = widget_val ? widget_val->call_data : NULL;
if (instance->info->selection_cb &&
contents_val &&
contents_val->enabled &&
!contents_val->contents)
instance->info->selection_cb (w, id, contents_val->call_data);
if (post_activate_cb)
post_activate_cb (w, id, widget_arg);
}
/* creation functions */
static Widget
xlw_create_menubar (widget_instance* instance)
{
Arg al [1];
Widget widget;
XtSetArg (al [0], XtNmenu, instance->info->val);
widget = XtCreateWidget (instance->info->name, xlwMenuWidgetClass,
instance->parent, al, 1);
XtAddCallback (widget, XtNopen, pre_hook, (XtPointer)instance);
XtAddCallback (widget, XtNselect, pick_hook, (XtPointer)instance);
return widget;
}
static Widget
xlw_create_popup_menu (widget_instance* instance)
{
Arg al [2];
Widget popup_shell, widget;
popup_shell = XtCreatePopupShell (instance->info->name,
overrideShellWidgetClass,
instance->parent, NULL, 0);
XtSetArg (al [0], XtNmenu, instance->info->val);
XtSetArg (al [1], XtNhorizontal, False);
widget = XtCreateManagedWidget ("popup", xlwMenuWidgetClass,
popup_shell, al, 2);
XtAddCallback (widget, XtNselect, pick_hook, (XtPointer)instance);
return popup_shell;
}
#endif /* LWLIB_MENUBARS_LUCID */
#ifdef LWLIB_SCROLLBARS_LUCID
static void
xlw_scrollbar_callback (Widget widget, XtPointer closure, XtPointer call_data)
{
widget_instance *instance = (widget_instance *) closure;
LWLIB_ID id;
XlwScrollBarCallbackStruct *data =
(XlwScrollBarCallbackStruct *) call_data;
scroll_event event_data;
scrollbar_values *val;
double percent;
if (!instance || widget->core.being_destroyed)
return;
val = (scrollbar_values *) instance->info->val->scrollbar_data;
id = instance->info->id;
percent = (double) (data->value - 1) / (double) (INT_MAX - 1);
event_data.slider_value =
(int) (percent * (double) (val->maximum - val->minimum)) + val->minimum;
if (event_data.slider_value > val->maximum - val->slider_size)
event_data.slider_value = val->maximum - val->slider_size;
else if (event_data.slider_value < val->minimum)
event_data.slider_value = val->minimum;
if (data->event)
{
switch (data->event->type)
{
case KeyPress:
case KeyRelease:
event_data.time = data->event->xkey.time;
break;
case ButtonPress:
case ButtonRelease:
event_data.time = data->event->xbutton.time;
break;
case MotionNotify:
event_data.time = data->event->xmotion.time;
break;
case EnterNotify:
case LeaveNotify:
event_data.time = data->event->xcrossing.time;
break;
default:
event_data.time = 0;
break;
}
}
else
event_data.time = 0;
switch (data->reason)
{
case XmCR_DECREMENT: event_data.action = SCROLLBAR_LINE_UP; break;
case XmCR_INCREMENT: event_data.action = SCROLLBAR_LINE_DOWN; break;
case XmCR_PAGE_DECREMENT: event_data.action = SCROLLBAR_PAGE_UP; break;
case XmCR_PAGE_INCREMENT: event_data.action = SCROLLBAR_PAGE_DOWN; break;
case XmCR_TO_TOP: event_data.action = SCROLLBAR_TOP; break;
case XmCR_TO_BOTTOM: event_data.action = SCROLLBAR_BOTTOM; break;
case XmCR_DRAG: event_data.action = SCROLLBAR_DRAG; break;
case XmCR_VALUE_CHANGED: event_data.action = SCROLLBAR_CHANGE; break;
default: event_data.action = SCROLLBAR_CHANGE; break;
}
if (instance->info->pre_activate_cb)
instance->info->pre_activate_cb (widget, id, (XtPointer) &event_data);
}
#define add_scrollbar_callback(resource) \
XtAddCallback (scrollbar, resource, xlw_scrollbar_callback, (XtPointer) instance)
/* #### Does not yet support horizontal scrollbars. */
static Widget
xlw_create_scrollbar (widget_instance *instance, int vertical)
{
Arg al[20];
int ac = 0;
static XtCallbackRec callbacks[2] =
{ {xlw_scrollbar_callback, NULL}, {NULL, NULL} };
callbacks[0].closure = (XtPointer) instance;
XtSetArg (al[ac], XmNminimum, 1); ac++;
XtSetArg (al[ac], XmNmaximum, INT_MAX); ac++;
XtSetArg (al[ac], XmNincrement, 1); ac++;
XtSetArg (al[ac], XmNpageIncrement, 1); ac++;
XtSetArg (al[ac], XmNorientation, (vertical ? XmVERTICAL : XmHORIZONTAL)); ac++;
XtSetArg (al[ac], XmNdecrementCallback, callbacks); ac++;
XtSetArg (al[ac], XmNdragCallback, callbacks); ac++;
XtSetArg (al[ac], XmNincrementCallback, callbacks); ac++;
XtSetArg (al[ac], XmNpageDecrementCallback, callbacks); ac++;
XtSetArg (al[ac], XmNpageIncrementCallback, callbacks); ac++;
XtSetArg (al[ac], XmNtoBottomCallback, callbacks); ac++;
XtSetArg (al[ac], XmNtoTopCallback, callbacks); ac++;
XtSetArg (al[ac], XmNvalueChangedCallback, callbacks); ac++;
return XtCreateWidget (instance->info->name, xlwScrollBarWidgetClass,
instance->parent, al, ac);
}
static Widget
xlw_create_vertical_scrollbar (widget_instance *instance)
{
return xlw_create_scrollbar (instance, 1);
}
static Widget
xlw_create_horizontal_scrollbar (widget_instance *instance)
{
return xlw_create_scrollbar (instance, 0);
}
static void
xlw_update_scrollbar (widget_instance *instance, Widget widget,
widget_value *val)
{
if (val->scrollbar_data)
{
scrollbar_values *data = val->scrollbar_data;
int widget_sliderSize, widget_val;
int new_sliderSize, new_value;
double percent;
Arg al [4];
/* First size and position the scrollbar widget. */
XtSetArg (al [0], XtNx, data->scrollbar_x);
XtSetArg (al [1], XtNy, data->scrollbar_y);
XtSetArg (al [2], XtNwidth, data->scrollbar_width);
XtSetArg (al [3], XtNheight, data->scrollbar_height);
XtSetValues (widget, al, 4);
/* Now size the scrollbar's slider. */
XtSetArg (al [0], XmNsliderSize, &widget_sliderSize);
XtSetArg (al [1], XmNvalue, &widget_val);
XtGetValues (widget, al, 2);
percent = (double) data->slider_size /
(double) (data->maximum - data->minimum);
percent = (percent > 1.0 ? 1.0 : percent);
new_sliderSize = (int) ((double) (INT_MAX - 1) * percent);
percent = (double) (data->slider_position - data->minimum) /
(double) (data->maximum - data->minimum);
percent = (percent > 1.0 ? 1.0 : percent);
new_value = (int) ((double) (INT_MAX - 1) * percent);
if (new_sliderSize > INT_MAX - 1)
new_sliderSize = INT_MAX - 1;
else if (new_sliderSize < 1)
new_sliderSize = 1;
if (new_value > (INT_MAX - new_sliderSize))
new_value = INT_MAX - new_sliderSize;
else if (new_value < 1)
new_value = 1;
if (new_sliderSize != widget_sliderSize || new_value != widget_val)
XlwScrollBarSetValues (widget, new_value, new_sliderSize, 1, 1, False);
}
}
#endif /* LWLIB_SCROLLBARS_LUCID */
#ifdef LWLIB_TABS_LUCID
/* tab control
[[ lwlib is such an incredible hairy crock. I just cannot believe
it! There are random dependencies between functions, there is a
total lack of genericity, even though it initially appears to be
generic. It should all be junked and begun again. Building tabs are
an example - in theory we should be able to reuse a lot of the
general stuff because we want to put labels of whatever toolkit we
are using in the tab. Instead we have to hack it by hand. ]]
While lwlib is a hairy crock, whoever wrote that seems to misunderstand
Falk's tab control widget. The tab control widget has *two* kinds of
children: *widgets*, which all occupy a *single* pane below the row of
tabs---this is where the labels created in build_tabs_in_widget go, and
*gadgets*, the tabs themselves, which do *not* draw themselves, but
rather are drawn by the control. In fact, in XEmacs the true widget
children are *never* visible! So this case is not a problem in the
design of lwlib, but rather of Falk's widget. -- sjt */
static void
xlw_tab_control_callback (Widget w, XtPointer client_data, XtPointer call_data)
{
/* call data is the topmost widget */
widget_instance* instance = (widget_instance*)client_data;
Widget top = (Widget)call_data;
char *name = XtName (top);
widget_value* widget_val;
XtPointer widget_arg;
LWLIB_ID id;
lw_callback post_activate_cb;
if (w->core.being_destroyed)
return;
/* Grab these values before running any functions, in case running
the selection_cb causes the widget to be destroyed. */
id = instance->info->id;
post_activate_cb = instance->info->post_activate_cb;
/* search for the widget_val for the selected tab */
for (widget_val = instance->info->val->contents; widget_val;
widget_val = widget_val->next)
{
if (!strcmp (widget_val->name, name))
break;
}
widget_arg = widget_val ? widget_val->call_data : NULL;
if (instance->info->selection_cb &&
widget_val &&
widget_val->enabled &&
!widget_val->contents)
instance->info->selection_cb (w, id, widget_arg);
if (post_activate_cb)
post_activate_cb (w, id, widget_arg);
}
static Widget
xlw_create_tab_control (widget_instance *instance)
{
Arg al[20];
int ac = 0;
Widget tab = 0;
widget_value* val = instance->info->val;
XtSetArg (al [ac], XtNsensitive, val->enabled); ac++;
XtSetArg (al [ac], XtNmappedWhenManaged, False); ac++;
XtSetArg (al [ac], XtNorientation, XtorientHorizontal); ac++;
/* add any args the user supplied for creation time */
lw_add_value_args_to_args (val, al, &ac);
tab = XtCreateManagedWidget (val->name, tabsWidgetClass,
instance->parent, al, ac);
XtRemoveAllCallbacks (tab, XtNcallback);
XtAddCallback (tab, XtNcallback, xlw_tab_control_callback, (XtPointer)instance);
XtManageChild (tab);
return tab;
}
static void build_tabs_in_widget (widget_instance* instance, Widget widget,
widget_value* val)
{
widget_value* cur = val;
Arg al[1];
/* Children are always invisible, don't permit resizing. */
XtSetArg (al[0], XtNresizable, False);
for (cur = val; cur; cur = cur->next)
{
if (cur->value)
{
Widget w;
#ifdef LWLIB_WIDGETS_MOTIF
w = xm_create_label (widget, cur);
#else
w = xaw_create_label (widget, cur);
#endif
XtSetValues (w, al, 1);
}
cur->change = NO_CHANGE;
}
}
static void
xlw_update_tab_control (widget_instance* instance, Widget widget, widget_value* val)
{
Widget* children;
unsigned int num_children;
int i;
widget_value *cur = 0;
XtRemoveAllCallbacks (widget, XtNcallback);
XtAddCallback (widget, XtNcallback, xlw_tab_control_callback, (XtPointer)instance);
if (val->change == STRUCTURAL_CHANGE
||
(val->contents && val->contents->change == STRUCTURAL_CHANGE))
{
destroy_all_children (widget);
build_tabs_in_widget (instance, widget, val->contents);
}
children = XtCompositeChildren (widget, &num_children);
if (children)
{
for (i = 0, cur = val->contents; i < num_children; i++)
{
if (!cur)
abort ();
if (children [i]->core.being_destroyed
|| strcmp (XtName (children [i]), cur->name))
continue;
#ifdef NEED_MOTIF
if (lw_motif_widget_p (children [i]))
xm_update_one_widget (instance, children [i], cur, False);
#endif
#ifdef NEED_ATHENA
if (lw_xaw_widget_p (children [i]))
xaw_update_one_widget (instance, children [i], cur, False);
#endif
cur = cur->next;
}
XtFree ((char *) children);
}
if (cur)
abort ();
}
#endif /* LWLIB_TABS_LUCID */
#ifdef HAVE_WIDGETS
static Widget
xlw_create_clip_window (widget_instance *instance)
{
Arg al[20];
int ac = 0;
Widget clip = 0;
widget_value* val = instance->info->val;
XtSetArg (al [ac], XtNmappedWhenManaged, FALSE); ac++;
XtSetArg (al [ac], XtNsensitive, TRUE); ac++;
/* add any args the user supplied for creation time */
lw_add_value_args_to_args (val, al, &ac);
/* Create a clip window to contain the subwidget. Incredibly the
XEmacs manager seems to be the most appropriate widget for
this. Nothing else is simple enough and yet does what is
required. */
clip = XtCreateManagedWidget (val->name,
emacsManagerWidgetClass,
instance->parent, al, ac);
return clip;
}
#endif
const widget_creation_entry
xlw_creation_table [] =
{
#ifdef LWLIB_MENUBARS_LUCID
{"menubar", xlw_create_menubar},
{"popup", xlw_create_popup_menu},
#endif
#ifdef LWLIB_SCROLLBARS_LUCID
{"vertical-scrollbar", xlw_create_vertical_scrollbar},
{"horizontal-scrollbar", xlw_create_horizontal_scrollbar},
#endif
#ifdef LWLIB_TABS_LUCID
{"tab-control", xlw_create_tab_control},
#endif
#ifdef HAVE_WIDGETS
{"clip-window", xlw_create_clip_window},
#endif
{NULL, NULL}
};
Boolean
lw_lucid_widget_p (Widget widget)
{
WidgetClass the_class = XtClass (widget);
#ifdef LWLIB_MENUBARS_LUCID
if (the_class == xlwMenuWidgetClass)
return True;
#endif
#ifdef LWLIB_SCROLLBARS_LUCID
if (the_class == xlwScrollBarWidgetClass)
return True;
#endif
#ifdef LWLIB_TABS_LUCID
if (the_class == tabsWidgetClass)
return True;
#endif
#ifdef LWLIB_MENUBARS_LUCID
if (the_class == overrideShellWidgetClass)
return
XtClass (((CompositeWidget)widget)->composite.children [0])
== xlwMenuWidgetClass;
#endif
#ifdef HAVE_WIDGETS
if (the_class == emacsManagerWidgetClass)
return True;
#endif
return False;
}
void
xlw_update_one_widget (widget_instance* instance, Widget widget,
widget_value* val, Boolean deep_p)
{
WidgetClass class = XtClass (widget);
if (0)
;
#ifdef LWLIB_MENUBARS_LUCID
else if (class == xlwMenuWidgetClass)
{
XlwMenuWidget mw;
Arg al [1];
if (XtIsShell (widget))
mw = (XlwMenuWidget)((CompositeWidget)widget)->composite.children [0];
else
mw = (XlwMenuWidget)widget;
XtSetArg (al [0], XtNmenu, val);
XtSetValues (widget, al, 1); /* #### mw unused! */
}
#endif
#ifdef LWLIB_SCROLLBARS_LUCID
else if (class == xlwScrollBarWidgetClass)
{
xlw_update_scrollbar (instance, widget, val);
}
#endif
#ifdef LWLIB_TABS_LUCID
else if (class == tabsWidgetClass)
{
xlw_update_tab_control (instance, widget, val);
}
#endif
/* Lastly update our global arg values. */
if (val->args && val->args->nargs)
XtSetValues (widget, val->args->args, val->args->nargs);
}
void
xlw_update_one_value (widget_instance* instance, Widget widget,
widget_value* val)
{
return;
}
void
xlw_pop_instance (widget_instance* instance, Boolean up)
{
}
#ifdef LWLIB_MENUBARS_LUCID
void
xlw_popup_menu (Widget widget, XEvent *event)
{
XlwMenuWidget mw;
if (!XtIsShell (widget))
return;
if (event->type == ButtonPress || event->type == ButtonRelease)
{
mw = (XlwMenuWidget)((CompositeWidget)widget)->composite.children [0];
xlw_pop_up_menu (mw, (XButtonPressedEvent *)event);
}
else
abort ();
}
#endif /* LWLIB_MENUBARS_LUCID */
/* Destruction of instances */
void
xlw_destroy_instance (widget_instance* instance)
{
if (instance->widget)
XtDestroyWidget (instance->widget);
}
|