3 * Copyright 1996-2002 The LyX Team.
4 * Copyright 1996Alejandro Aguilar Sierra
5 * See the file COPYING.
7 * \author Alejandro Aguilar Sierra
10 /* A combination of two objects (a button and a browser) is encapsulated to
11 * get a combobox-like object. All XForms functions are hidden.
17 * 2/06/1996, Alejandro Aguilar Sierra
20 * 4/06/1996, Alejandro Aguilar Sierra
21 * Added droplist mode (a button with a black down arrow at right)
22 * and support for middle and right buttons, as XForms choice object.
24 * 6/06/1996, Lars Gullik Bjønnes
25 * Added a combox with an input object. and a pre and a post handle.
27 * 22/07/96, Alejandro Aguilar Sierra
28 * Assigned to the browser its own popup window. No more need of
29 * external pre and post handlers to simulate the wanted behaviour.
36 #pragma implementation
46 // These are C wrappers around static members of Combox, used as
47 // callbacks for xforms.
51 void C_Combox_input_cb(FL_OBJECT * ob, long data)
53 Combox::input_cb(ob, data);
57 void C_Combox_combo_cb(FL_OBJECT * ob, long data)
59 Combox::combo_cb(ob, data);
63 int C_Combox_peek_event(FL_FORM * form, void *xev)
65 return Combox::peek_event(form, xev);
71 Combox::Combox(combox_type t)
72 : type(t), tabfolder1(0), tabfolder2(0)
93 if (browser) fl_clear_browser(browser);
95 if (type == FL_COMBOX_INPUT)
96 fl_set_input(label, "");
98 fl_set_object_label(label, "");
103 void Combox::remove()
105 lyxerr[Debug::GUI] << "Button: " << button << endl;
107 fl_delete_object(button);
108 fl_free_object(button);
111 lyxerr[Debug::GUI] << "Label: " << label << endl;
112 if (label && label != button) {
113 fl_delete_object(label);
114 fl_free_object(label);
117 lyxerr[Debug::GUI] << "Form: " << form << endl;
118 lyxerr[Debug::GUI] << "Browser: " << browser << endl;
119 if (form && browser) {
120 fl_delete_object(browser);
121 fl_free_object(browser);
133 void Combox::addline(string const & text)
135 if (!browser) return;
136 fl_add_browser_line(browser, text.c_str());
138 // By default the first item is selected
141 if (type == FL_COMBOX_INPUT)
142 fl_set_input(label, text.c_str());
144 fl_set_object_label(label, text.c_str());
150 bool Combox::select(string const & t)
152 if (!browser || t.empty()) return false;
153 int const maxline = fl_get_browser_maxline(browser);
155 for (int i = 1; i <= maxline; ++i) {
156 if (t == fl_get_browser_line(browser, i)) {
161 return false; // t does not exist in browser
165 void Combox::select(int i)
167 if (!browser || !button) return;
168 if (i > 0 && i <= fl_get_browser_maxline(browser)) sel = i;
169 fl_deactivate_object(button);
171 if (type == FL_COMBOX_INPUT)
172 fl_set_input(label, fl_get_browser_line(browser, sel));
174 fl_set_object_label(label, fl_get_browser_line(browser, sel));
175 fl_activate_object(button);
179 void Combox::add(int x, int y, int w, int hmin, int hmax,
180 FL_OBJECT * tabfolder1_, FL_OBJECT * tabfolder2_)
182 // Store these for later use in working round an xforms bug in show()
183 tabfolder1 = tabfolder1_;
184 tabfolder2 = tabfolder2_;
189 case FL_COMBOX_DROPLIST:
191 button = obj = fl_add_button(FL_NORMAL_BUTTON,
192 x+w-22, y, 22, hmin, "@2->");
193 fl_set_object_color(obj, FL_MCOL, FL_MCOL);
194 fl_set_object_dblbuffer(obj, 1);
195 fl_set_object_callback(obj, C_Combox_combo_cb, 0);
196 label = obj = fl_add_button(FL_NORMAL_TEXT, x, y, w-22, hmin, "");
197 fl_set_object_boxtype(obj, FL_DOWN_BOX);
198 fl_set_object_color(obj, FL_MCOL, FL_BLACK);
199 fl_set_object_lalign(obj, FL_ALIGN_CENTER|FL_ALIGN_INSIDE);
200 fl_set_object_dblbuffer(obj, 1);
201 fl_set_object_callback(obj, C_Combox_combo_cb, 0);
204 case FL_COMBOX_NORMAL:
206 button = obj = fl_add_button(FL_NORMAL_BUTTON, x, y, w, hmin, "");
207 fl_set_object_color(obj, FL_MCOL, FL_MCOL);
208 fl_set_object_boxtype(obj, FL_DOWN_BOX);
209 fl_set_object_callback(obj, C_Combox_combo_cb, 0);
210 fl_set_object_color(obj, FL_MCOL, FL_BLACK);
214 case FL_COMBOX_INPUT:
216 button = obj = fl_add_button(FL_NORMAL_BUTTON,
217 x+w-22, y, 22, hmin, "@2->");
218 fl_set_object_color(obj, FL_MCOL, FL_MCOL);
219 fl_set_object_callback(obj, C_Combox_combo_cb, 0);
220 label = obj = fl_add_input(FL_NORMAL_INPUT, x, y, w-22, hmin, "");
221 fl_set_object_boxtype(obj, FL_DOWN_BOX);
222 fl_set_object_return(obj, FL_RETURN_END_CHANGED);
223 fl_set_object_callback(obj, C_Combox_input_cb, 0);
224 //fl_set_object_color(obj, FL_MCOL, FL_BLACK);
225 //fl_set_object_lalign(obj,FL_ALIGN_CENTER|FL_ALIGN_INSIDE);
230 label->u_vdata = this;
231 button->u_vdata = this;
233 // Hmm, it seems fl_create_browser is broken in xforms 0.86.
234 // We have to work around that by creating the dropped browser form
235 // at this point already. However, this means that we have
236 // to do a little hacking: (Asger)
237 FL_FORM * current_form = fl_current_form;
241 bh = hmax - hmin - 12;
243 form = fl_bgn_form(FL_NO_BOX, bw, bh);
244 browser = obj = fl_add_browser(FL_HOLD_BROWSER, 0, 0, bw, bh, "");
245 fl_set_object_boxtype(obj, FL_UP_BOX);
246 fl_set_object_color(obj, FL_MCOL, FL_YELLOW);
247 fl_set_object_gravity(obj, NorthWestGravity, NorthWestGravity);
248 fl_set_object_callback(obj, C_Combox_combo_cb, 2);
250 browser->u_vdata = this;
251 form->u_vdata = browser;
252 fl_register_raw_callback(form,
253 ButtonPressMask|KeyPressMask,
254 C_Combox_peek_event);
256 // And revert to adding to the old form (Asger)
257 fl_addto_form(current_form);
268 void Combox::redraw()
270 if (browser) fl_redraw_object(browser);
271 if (button) fl_redraw_object(button);
272 if (label) fl_redraw_object(label);
280 XGetInputFocus(fl_get_display(), &save_window, &tmp); //BUG-Fix Dietmar
281 XFlush(fl_get_display());
282 if (button && type != FL_COMBOX_NORMAL) {
283 fl_set_object_label(button, "@2<-");
284 fl_redraw_object(button);
288 int y = label->y + label->h;
290 // This is a bug work around suggested by Steve Lamont on the
291 // xforms mailing list. It correctly positions the browser form
292 // after the main window has been moved.
293 // The bug only occurs in tabbed folders.
294 int folder_x, folder_y, folder_w, folder_h;
295 fl_get_folder_area( tabfolder1,
296 &folder_x, &folder_y,
297 &folder_w, &folder_h);
302 fl_get_folder_area( tabfolder2,
303 &folder_x, &folder_y,
304 &folder_w, &folder_h);
305 x += tabfolder2->form->x + folder_x;
306 y += tabfolder2->form->y + folder_y;
308 x += tabfolder1->form->x;
309 y += tabfolder1->form->y;
317 fl_set_form_position(form, x, y);
318 fl_show_form(form, FL_PLACE_POSITION, FL_NOBORDER, "");
320 fl_set_browser_topline(browser, sel);
321 fl_select_browser_line(browser, sel);
323 XGrabPointer(fl_get_display(), form->window, false,
324 ButtonPressMask | ButtonReleaseMask | PointerMotionMask,
325 GrabModeAsync, GrabModeAsync,
327 XFlush(fl_get_display());
330 void Combox::hide(int who)
332 if (!who && browser && label) {
333 sel = fl_get_browser(browser);
335 if (type == FL_COMBOX_INPUT)
336 fl_set_input(label, fl_get_browser_line(browser, sel));
338 fl_set_object_label(label,
339 fl_get_browser_line(browser, sel));
340 // if (callback) callback(sel, cb_arg);
342 XUngrabPointer(fl_get_display(), 0);
343 XFlush(fl_get_display());
346 XSetInputFocus(fl_get_display(), save_window,
347 RevertToParent, CurrentTime); // BUG-FIX-Dietmar
348 XFlush(fl_get_display());
351 if (type != FL_COMBOX_NORMAL) {
352 fl_set_object_label(button, "@2->");
353 fl_redraw_object(button);
356 if (!who && browser && label && callback)
357 callback(sel, cb_arg, this);
362 void Combox::activate()
365 fl_activate_object(browser);
367 fl_activate_object(button);
368 fl_set_object_lcol(button, FL_BLACK);
371 fl_activate_object(label);
372 fl_set_object_lcol(label, FL_BLACK);
377 void Combox::deactivate()
380 fl_deactivate_object(browser);
382 fl_deactivate_object(button);
383 fl_set_object_lcol(button, FL_INACTIVE);
386 fl_deactivate_object(label);
387 fl_set_object_lcol(label, FL_INACTIVE);
392 void Combox::input_cb(FL_OBJECT * ob, long)
394 Combox * combo = static_cast<Combox*>(ob->u_vdata);
396 char const * text = fl_get_input(ob);
398 combo->addto(text ? string(text) : string());
399 combo->is_empty = false;
403 void Combox::combo_cb(FL_OBJECT * ob, long data)
405 Combox * combo = static_cast<Combox*>(ob->u_vdata);
409 int const i = combo->get();
410 switch (fl_get_button_numb(ob)) {
413 combo->select(i - 1);
415 combo->callback(combo->sel,
416 combo->cb_arg, combo);
421 combo->select(i + 1);
423 combo->callback(combo->sel,
424 combo->cb_arg, combo);
427 default: combo->show(); break;
438 int Combox::peek_event(FL_FORM * form, void * xev)
440 FL_OBJECT * ob = static_cast<FL_OBJECT *>(form->u_vdata);
441 Combox * combo = static_cast<Combox*>(ob->u_vdata);
443 // below mouse does not work like we need it
444 if (static_cast<XEvent *>(xev)->type == ButtonPress && (
445 static_cast<XEvent *>(xev)->xbutton.x - ob->x < 0 ||
446 static_cast<XEvent *>(xev)->xbutton.x - ob->x > ob->w ||
447 static_cast<XEvent *>(xev)->xbutton.y - ob->y < 0 ||
448 static_cast<XEvent *>(xev)->xbutton.y - ob->y > ob->h)) {
453 if (static_cast<XEvent*>(xev)->type != KeyPress) return 0;
455 char s_r[10]; s_r[9] = '\0';
456 KeySym keysym_return;
457 XLookupString(&static_cast<XEvent*>(xev)->xkey, s_r, 10,
459 XFlush(fl_get_display());
460 switch (keysym_return) {
462 if (fl_get_browser(combo->browser) <
463 fl_get_browser_maxline(combo->browser))
464 fl_select_browser_line(combo->browser,
465 fl_get_browser(combo->browser)+1);
466 if (fl_get_browser(combo->browser)>=
467 fl_get_browser_topline(combo->browser) +
468 fl_get_browser_screenlines(combo->browser))
469 fl_set_browser_topline(combo->browser,
470 fl_get_browser(combo->browser)
471 - fl_get_browser_screenlines(combo->browser)+1);
472 if (fl_get_browser(combo->browser)<
473 fl_get_browser_topline(combo->browser))
474 fl_set_browser_topline(combo->browser,
475 fl_get_browser(combo->browser));
478 if (fl_get_browser(combo->browser) > 1)
479 fl_select_browser_line(combo->browser,
480 fl_get_browser(combo->browser)-1);
481 if (fl_get_browser(combo->browser)>=
482 fl_get_browser_topline(combo->browser) +
483 fl_get_browser_screenlines(combo->browser))
484 fl_set_browser_topline(combo->browser,
485 fl_get_browser(combo->browser)
486 - fl_get_browser_screenlines(combo->browser)+1);
487 if (fl_get_browser(combo->browser) <
488 fl_get_browser_topline(combo->browser))
489 fl_set_browser_topline(combo->browser,
490 fl_get_browser(combo->browser));
511 //Combox combo(FL_COMBOX_DROPLIST);
512 Combox combo(FL_COMBOX_INPUT);
516 FD_test *create_form_test(void)
519 FD_test *fdui = (FD_test *) fl_calloc(1, sizeof(*fdui));
521 fdui->test = fl_bgn_form(FL_NO_BOX, 320, 190);
522 obj = fl_add_box(FL_UP_BOX, 0, 0, 320, 190, "");
523 obj = fl_add_box(FL_DOWN_BOX, 10, 50, 300, 110, "");
524 obj = fl_add_button(FL_NORMAL_BUTTON, 250, 10, 50, 30, _("Done"));
525 combo.add(10, 15, 120, 25, 135);
533 fprintf(stderr, "selected %d:%s\n", i, combo.getline());
536 int main(int argc, char *argv[])
540 // Same defaults as in lyx
542 cntl.buttonFontSize = FL_NORMAL_SIZE;
543 cntl.browserFontSize = FL_NORMAL_SIZE;
544 cntl.labelFontSize = FL_NORMAL_SIZE;
545 cntl.choiceFontSize = FL_NORMAL_SIZE;
546 cntl.inputFontSize = FL_NORMAL_SIZE;
547 cntl.borderWidth = -2;
548 fl_set_defaults(FL_PDButtonFontSize, &cntl);
549 fl_set_defaults(FL_PDBrowserFontSize, &cntl);
550 fl_set_defaults(FL_PDLabelFontSize, &cntl);
551 fl_set_defaults(FL_PDChoiceFontSize, &cntl);
552 fl_set_defaults(FL_PDInputFontSize, &cntl);
553 fl_set_defaults(FL_PDBorderWidth, &cntl);
554 fl_initialize(&argc, argv, 0, 0, 0);
556 fd_test = create_form_test();
558 /* fill-in form initialization code */
559 combo.addline("Title");
560 combo.addline("Author");
561 combo.addline("Date");
562 combo.addline("Abstract");
563 combo.addline("Chapter");
564 combo.addline("Section");
565 combo.addline("Subsection");
566 combo.addline("List");
567 combo.addline("Description");
568 combo.addline("Verse");
569 combo.addline("Verbatim");
570 combo.setcallback(combo_cb);
573 /* show the first form */
574 fl_show_form(fd_test->test, FL_PLACE_CENTER, FL_FULLBORDER, "test");