2 * Combox: A combination of two objects (a button and a browser) is
3 * encapsulated to get a combobox-like object. All XForms
4 * functions are hidden.
6 * GNU Copyleft 1996 Alejandro Aguilar Sierra <asierra@servidor.unam.mx>
9 * Dependencies: Only XForms, but created to be used with LyX.
15 * 2/06/1996, Alejandro Aguilar Sierra
18 * 4/06/1996, Alejandro Aguilar Sierra
19 * Added droplist mode (a button with a black down arrow at right)
20 * and support for middle and right buttons, as XForms choice object.
22 * 6/06/1996, Lars Gullik Bjønnes
23 * Added a combox with an input object. and a pre and a post handle.
25 * 22/07/96, Alejandro Aguilar Sierra
26 * Assigned to the browser its own popup window. No more need of
27 * external pre and post handlers to simulate the wanted behaviour.
34 #pragma implementation
44 // These are C wrappers around static members of Combox, used as
45 // callbacks for xforms.
49 void C_Combox_input_cb(FL_OBJECT * ob, long data)
51 Combox::input_cb(ob, data);
55 void C_Combox_combo_cb(FL_OBJECT * ob, long data)
57 Combox::combo_cb(ob, data);
61 int C_Combox_peek_event(FL_FORM * form, void *xev)
63 return Combox::peek_event(form, xev);
69 Combox::Combox(combox_type t)
70 : type(t), tabfolder1(0), tabfolder2(0)
91 if (browser) fl_clear_browser(browser);
93 if (type == FL_COMBOX_INPUT)
94 fl_set_input(label, "");
96 fl_set_object_label(label, "");
101 void Combox::remove()
103 lyxerr[Debug::GUI] << "Button: " << button << endl;
105 fl_delete_object(button);
106 fl_free_object(button);
109 lyxerr[Debug::GUI] << "Label: " << label << endl;
110 if (label && label != button) {
111 fl_delete_object(label);
112 fl_free_object(label);
115 lyxerr[Debug::GUI] << "Form: " << form << endl;
116 lyxerr[Debug::GUI] << "Browser: " << browser << endl;
117 if (form && browser) {
118 fl_delete_object(browser);
119 fl_free_object(browser);
131 void Combox::addline(string const & text)
133 if (!browser) return;
134 fl_add_browser_line(browser, text.c_str());
136 // By default the first item is selected
139 if (type == FL_COMBOX_INPUT)
140 fl_set_input(label, text.c_str());
142 fl_set_object_label(label, text.c_str());
148 bool Combox::select(string const & t)
150 if (!browser || t.empty()) return false;
151 int const maxline = fl_get_browser_maxline(browser);
153 for (int i = 1; i <= maxline; ++i) {
154 if (t == fl_get_browser_line(browser, i)) {
159 return false; // t does not exist in browser
163 void Combox::select(int i)
165 if (!browser || !button) return;
166 if (i > 0 && i <= fl_get_browser_maxline(browser)) sel = i;
167 fl_deactivate_object(button);
169 if (type == FL_COMBOX_INPUT)
170 fl_set_input(label, fl_get_browser_line(browser, sel));
172 fl_set_object_label(label, fl_get_browser_line(browser, sel));
173 fl_activate_object(button);
177 void Combox::add(int x, int y, int w, int hmin, int hmax,
178 FL_OBJECT * tabfolder1_, FL_OBJECT * tabfolder2_)
180 // Store these for later use in working round an xforms bug in show()
181 tabfolder1 = tabfolder1_;
182 tabfolder2 = tabfolder2_;
187 case FL_COMBOX_DROPLIST:
189 button = obj = fl_add_button(FL_NORMAL_BUTTON,
190 x+w-22, y, 22, hmin, "@2->");
191 fl_set_object_color(obj, FL_MCOL, FL_MCOL);
192 fl_set_object_dblbuffer(obj, 1);
193 fl_set_object_callback(obj, C_Combox_combo_cb, 0);
194 label = obj = fl_add_button(FL_NORMAL_TEXT, x, y, w-22, hmin, "");
195 fl_set_object_boxtype(obj, FL_DOWN_BOX);
196 fl_set_object_color(obj, FL_MCOL, FL_BLACK);
197 fl_set_object_lalign(obj, FL_ALIGN_CENTER|FL_ALIGN_INSIDE);
198 fl_set_object_dblbuffer(obj, 1);
199 fl_set_object_callback(obj, C_Combox_combo_cb, 0);
202 case FL_COMBOX_NORMAL:
204 button = obj = fl_add_button(FL_NORMAL_BUTTON, x, y, w, hmin, "");
205 fl_set_object_color(obj, FL_MCOL, FL_MCOL);
206 fl_set_object_boxtype(obj, FL_DOWN_BOX);
207 fl_set_object_callback(obj, C_Combox_combo_cb, 0);
208 fl_set_object_color(obj, FL_MCOL, FL_BLACK);
212 case FL_COMBOX_INPUT:
214 button = obj = fl_add_button(FL_NORMAL_BUTTON,
215 x+w-22, y, 22, hmin, "@2->");
216 fl_set_object_color(obj, FL_MCOL, FL_MCOL);
217 fl_set_object_callback(obj, C_Combox_combo_cb, 0);
218 label = obj = fl_add_input(FL_NORMAL_INPUT, x, y, w-22, hmin, "");
219 fl_set_object_boxtype(obj, FL_DOWN_BOX);
220 fl_set_object_return(obj, FL_RETURN_END_CHANGED);
221 fl_set_object_callback(obj, C_Combox_input_cb, 0);
222 //fl_set_object_color(obj, FL_MCOL, FL_BLACK);
223 //fl_set_object_lalign(obj,FL_ALIGN_CENTER|FL_ALIGN_INSIDE);
228 label->u_vdata = this;
229 button->u_vdata = this;
231 // Hmm, it seems fl_create_browser is broken in xforms 0.86.
232 // We have to work around that by creating the dropped browser form
233 // at this point already. However, this means that we have
234 // to do a little hacking: (Asger)
235 FL_FORM * current_form = fl_current_form;
239 bh = hmax - hmin - 12;
241 form = fl_bgn_form(FL_NO_BOX, bw, bh);
242 browser = obj = fl_add_browser(FL_HOLD_BROWSER, 0, 0, bw, bh, "");
243 fl_set_object_boxtype(obj, FL_UP_BOX);
244 fl_set_object_color(obj, FL_MCOL, FL_YELLOW);
245 fl_set_object_gravity(obj, NorthWestGravity, NorthWestGravity);
246 fl_set_object_callback(obj, C_Combox_combo_cb, 2);
248 browser->u_vdata = this;
249 form->u_vdata = browser;
250 fl_register_raw_callback(form,
251 ButtonPressMask|KeyPressMask,
252 C_Combox_peek_event);
254 // And revert to adding to the old form (Asger)
255 fl_addto_form(current_form);
266 void Combox::redraw()
268 if (browser) fl_redraw_object(browser);
269 if (button) fl_redraw_object(button);
270 if (label) fl_redraw_object(label);
278 XGetInputFocus(fl_get_display(), &save_window, &tmp); //BUG-Fix Dietmar
279 XFlush(fl_get_display());
280 if (button && type != FL_COMBOX_NORMAL) {
281 fl_set_object_label(button, "@2<-");
282 fl_redraw_object(button);
286 int y = label->y + label->h;
288 // This is a bug work around suggested by Steve Lamont on the
289 // xforms mailing list. It correctly positions the browser form
290 // after the main window has been moved.
291 // The bug only occurs in tabbed folders.
292 int folder_x, folder_y, folder_w, folder_h;
293 fl_get_folder_area( tabfolder1,
294 &folder_x, &folder_y,
295 &folder_w, &folder_h);
300 fl_get_folder_area( tabfolder2,
301 &folder_x, &folder_y,
302 &folder_w, &folder_h);
303 x += tabfolder2->form->x + folder_x;
304 y += tabfolder2->form->y + folder_y;
306 x += tabfolder1->form->x;
307 y += tabfolder1->form->y;
315 fl_set_form_position(form, x, y);
316 fl_show_form(form, FL_PLACE_POSITION, FL_NOBORDER, "");
318 fl_set_browser_topline(browser, sel);
319 fl_select_browser_line(browser, sel);
321 XGrabPointer(fl_get_display(), form->window, false,
322 ButtonPressMask | ButtonReleaseMask | PointerMotionMask,
323 GrabModeAsync, GrabModeAsync,
325 XFlush(fl_get_display());
328 void Combox::hide(int who)
330 if (!who && browser && label) {
331 sel = fl_get_browser(browser);
333 if (type == FL_COMBOX_INPUT)
334 fl_set_input(label, fl_get_browser_line(browser, sel));
336 fl_set_object_label(label,
337 fl_get_browser_line(browser, sel));
338 // if (callback) callback(sel, cb_arg);
340 XUngrabPointer(fl_get_display(), 0);
341 XFlush(fl_get_display());
344 XSetInputFocus(fl_get_display(), save_window,
345 RevertToParent, CurrentTime); // BUG-FIX-Dietmar
346 XFlush(fl_get_display());
349 if (type != FL_COMBOX_NORMAL) {
350 fl_set_object_label(button, "@2->");
351 fl_redraw_object(button);
354 if (!who && browser && label && callback)
355 callback(sel, cb_arg, this);
360 void Combox::activate()
363 fl_activate_object(browser);
365 fl_activate_object(button);
366 fl_set_object_lcol(button, FL_BLACK);
369 fl_activate_object(label);
370 fl_set_object_lcol(label, FL_BLACK);
375 void Combox::deactivate()
378 fl_deactivate_object(browser);
380 fl_deactivate_object(button);
381 fl_set_object_lcol(button, FL_INACTIVE);
384 fl_deactivate_object(label);
385 fl_set_object_lcol(label, FL_INACTIVE);
390 void Combox::input_cb(FL_OBJECT * ob, long)
392 Combox * combo = static_cast<Combox*>(ob->u_vdata);
394 char const * text = fl_get_input(ob);
396 combo->addto(text ? string(text) : string());
397 combo->is_empty = false;
401 void Combox::combo_cb(FL_OBJECT * ob, long data)
403 Combox * combo = static_cast<Combox*>(ob->u_vdata);
407 int const i = combo->get();
408 switch (fl_get_button_numb(ob)) {
411 combo->select(i - 1);
413 combo->callback(combo->sel,
414 combo->cb_arg, combo);
419 combo->select(i + 1);
421 combo->callback(combo->sel,
422 combo->cb_arg, combo);
425 default: combo->show(); break;
436 int Combox::peek_event(FL_FORM * form, void * xev)
438 FL_OBJECT * ob = static_cast<FL_OBJECT *>(form->u_vdata);
439 Combox * combo = static_cast<Combox*>(ob->u_vdata);
441 // below mouse does not work like we need it
442 if (static_cast<XEvent *>(xev)->type == ButtonPress && (
443 static_cast<XEvent *>(xev)->xbutton.x - ob->x < 0 ||
444 static_cast<XEvent *>(xev)->xbutton.x - ob->x > ob->w ||
445 static_cast<XEvent *>(xev)->xbutton.y - ob->y < 0 ||
446 static_cast<XEvent *>(xev)->xbutton.y - ob->y > ob->h)) {
451 if (static_cast<XEvent*>(xev)->type != KeyPress) return 0;
453 char s_r[10]; s_r[9] = '\0';
454 KeySym keysym_return;
455 XLookupString(&static_cast<XEvent*>(xev)->xkey, s_r, 10,
457 XFlush(fl_get_display());
458 switch (keysym_return) {
460 if (fl_get_browser(combo->browser) <
461 fl_get_browser_maxline(combo->browser))
462 fl_select_browser_line(combo->browser,
463 fl_get_browser(combo->browser)+1);
464 if (fl_get_browser(combo->browser)>=
465 fl_get_browser_topline(combo->browser) +
466 fl_get_browser_screenlines(combo->browser))
467 fl_set_browser_topline(combo->browser,
468 fl_get_browser(combo->browser)
469 - fl_get_browser_screenlines(combo->browser)+1);
470 if (fl_get_browser(combo->browser)<
471 fl_get_browser_topline(combo->browser))
472 fl_set_browser_topline(combo->browser,
473 fl_get_browser(combo->browser));
476 if (fl_get_browser(combo->browser) > 1)
477 fl_select_browser_line(combo->browser,
478 fl_get_browser(combo->browser)-1);
479 if (fl_get_browser(combo->browser)>=
480 fl_get_browser_topline(combo->browser) +
481 fl_get_browser_screenlines(combo->browser))
482 fl_set_browser_topline(combo->browser,
483 fl_get_browser(combo->browser)
484 - fl_get_browser_screenlines(combo->browser)+1);
485 if (fl_get_browser(combo->browser) <
486 fl_get_browser_topline(combo->browser))
487 fl_set_browser_topline(combo->browser,
488 fl_get_browser(combo->browser));
509 //Combox combo(FL_COMBOX_DROPLIST);
510 Combox combo(FL_COMBOX_INPUT);
514 FD_test *create_form_test(void)
517 FD_test *fdui = (FD_test *) fl_calloc(1, sizeof(*fdui));
519 fdui->test = fl_bgn_form(FL_NO_BOX, 320, 190);
520 obj = fl_add_box(FL_UP_BOX, 0, 0, 320, 190, "");
521 obj = fl_add_box(FL_DOWN_BOX, 10, 50, 300, 110, "");
522 obj = fl_add_button(FL_NORMAL_BUTTON, 250, 10, 50, 30, _("Done"));
523 combo.add(10, 15, 120, 25, 135);
531 fprintf(stderr, "selected %d:%s\n", i, combo.getline());
534 int main(int argc, char *argv[])
538 // Same defaults as in lyx
540 cntl.buttonFontSize = FL_NORMAL_SIZE;
541 cntl.browserFontSize = FL_NORMAL_SIZE;
542 cntl.labelFontSize = FL_NORMAL_SIZE;
543 cntl.choiceFontSize = FL_NORMAL_SIZE;
544 cntl.inputFontSize = FL_NORMAL_SIZE;
545 cntl.borderWidth = -2;
546 fl_set_defaults(FL_PDButtonFontSize, &cntl);
547 fl_set_defaults(FL_PDBrowserFontSize, &cntl);
548 fl_set_defaults(FL_PDLabelFontSize, &cntl);
549 fl_set_defaults(FL_PDChoiceFontSize, &cntl);
550 fl_set_defaults(FL_PDInputFontSize, &cntl);
551 fl_set_defaults(FL_PDBorderWidth, &cntl);
552 fl_initialize(&argc, argv, 0, 0, 0);
554 fd_test = create_form_test();
556 /* fill-in form initialization code */
557 combo.addline("Title");
558 combo.addline("Author");
559 combo.addline("Date");
560 combo.addline("Abstract");
561 combo.addline("Chapter");
562 combo.addline("Section");
563 combo.addline("Subsection");
564 combo.addline("List");
565 combo.addline("Description");
566 combo.addline("Verse");
567 combo.addline("Verbatim");
568 combo.setcallback(combo_cb);
571 /* show the first form */
572 fl_show_form(fd_test->test, FL_PLACE_CENTER, FL_FULLBORDER, "test");