3 * Combox: A combination of two objects (a button and a browser) is
4 * encapsulated to get a combobox-like object. All XForms
5 * functions are hidden.
7 * GNU Copyleft (C) 1996 Alejandro Aguilar Sierra <asierra@servidor.unam.mx>
10 * Dependencies: Only XForms, but created to be used with LyX.
16 * 2/06/1996, Alejandro Aguilar Sierra
19 * 4/06/1996, Alejandro Aguilar Sierra
20 * Added droplist mode (a button with a black down arrow at right)
21 * and support for middle and right buttons, as XForms choice object.
23 * 6/06/1996, Lars Gullik Bjønnes
24 * Added a combox with an input object. and a pre and a post handle.
26 * 22/07/96, Alejandro Aguilar Sierra
27 * Assigned to the browser its own popup window. No more need of
28 * external pre and post handlers to simulate the wanted behaviour.
35 #pragma implementation
43 Combox::Combox(combox_type t): type(t)
64 if (browser) fl_clear_browser(browser);
66 if (type == FL_COMBOX_INPUT)
67 fl_set_input(label, "");
69 fl_set_object_label(label, "");
76 lyxerr.debug() << "Button: " << button << endl;
78 fl_delete_object(button);
79 fl_free_object(button);
82 lyxerr.debug() << "Label: " << label << endl;
83 if (label && label!=button) {
84 fl_delete_object(label);
85 fl_free_object(label);
88 lyxerr.debug() << "Form: " << form << endl;
89 lyxerr.debug() << "Browser: " << browser << endl;
90 if (form && browser) {
91 fl_delete_object(browser);
92 fl_free_object(browser);
104 void Combox::addline(char const* text)
106 if (!browser) return;
107 fl_add_browser_line(browser, text);
109 // By default the first item is selected
112 if (type == FL_COMBOX_INPUT)
113 fl_set_input(label, text);
115 fl_set_object_label(label, text);
121 bool Combox::select_text(char const* t)
123 if (!browser || !t) return false;
124 for (int i=1; i<=fl_get_browser_maxline(browser); i++) {
125 if (!strcmp(t, fl_get_browser_line(browser, i))) {
130 return false; // t does not exist in browser
134 void Combox::select(int i)
136 if (!browser || !button) return;
137 if (i>0 && i<=fl_get_browser_maxline(browser)) sel = i;
138 fl_deactivate_object(button);
140 if (type == FL_COMBOX_INPUT)
141 fl_set_input(label, fl_get_browser_line(browser, sel));
143 fl_set_object_label(label, fl_get_browser_line(browser, sel));
144 fl_activate_object(button);
148 void Combox::add(int x, int y, int w, int hmin, int hmax)
153 case FL_COMBOX_DROPLIST:
155 button = obj = fl_add_button(FL_NORMAL_BUTTON,
156 x+w-22,y,22,hmin,"@2->");
157 fl_set_object_color(obj,FL_MCOL, FL_MCOL);
158 fl_set_object_dblbuffer(obj, 1);
159 fl_set_object_callback(obj,combo_cb,0);
160 label = obj = fl_add_button(FL_NORMAL_TEXT,x,y,w-22,hmin,"");
161 fl_set_object_boxtype(obj,FL_DOWN_BOX);
162 fl_set_object_color(obj,FL_MCOL,FL_BLACK);
163 fl_set_object_lalign(obj,FL_ALIGN_CENTER|FL_ALIGN_INSIDE);
164 fl_set_object_dblbuffer(obj, 1);
165 fl_set_object_callback(obj,combo_cb,0);
168 case FL_COMBOX_NORMAL:
170 button = obj = fl_add_button(FL_NORMAL_BUTTON,x,y,w,hmin,"");
171 fl_set_object_color(obj,FL_MCOL, FL_MCOL);
172 fl_set_object_boxtype(obj,FL_DOWN_BOX);
173 fl_set_object_callback(obj,combo_cb,0);
174 fl_set_object_color(obj,FL_MCOL,FL_BLACK);
178 case FL_COMBOX_INPUT:
180 button = obj = fl_add_button(FL_NORMAL_BUTTON,
181 x+w-22,y,22,hmin,"@2->");
182 fl_set_object_color(obj,FL_MCOL, FL_MCOL);
183 fl_set_object_callback(obj,combo_cb,0);
184 label = obj = fl_add_input(FL_NORMAL_INPUT,x,y,w-22,hmin,"");
185 fl_set_object_boxtype(obj,FL_DOWN_BOX);
186 fl_set_object_return(obj, FL_RETURN_END_CHANGED);
187 fl_set_object_callback(obj,input_cb,0);
188 //fl_set_object_color(obj,FL_MCOL,FL_BLACK);
189 //fl_set_object_lalign(obj,FL_ALIGN_CENTER|FL_ALIGN_INSIDE);
194 label->u_vdata = (void*)this;
195 button->u_vdata = (void*)this;
197 // Hmm, it seems fl_create_browser is broken in xforms 0.86.
198 // We have to work around that by creating the dropped browser form
199 // at this point already. However, this means that we have
200 // to do a little hacking: (Asger)
201 FL_FORM * current_form = fl_current_form;
204 bw = w+20; bh = hmax-hmin-12;
206 form = fl_bgn_form(FL_NO_BOX, bw, bh);
207 browser = obj = fl_add_browser(FL_HOLD_BROWSER, 0, 0, bw,bh,"");
208 fl_set_object_boxtype(obj,FL_UP_BOX);
209 fl_set_object_color(obj,FL_MCOL, FL_YELLOW);
210 fl_set_object_gravity(obj, NorthWestGravity, NorthWestGravity);
211 fl_set_object_callback(obj,combo_cb,2);
213 browser->u_vdata = (void*)this;
214 form->u_vdata = browser;
215 fl_register_raw_callback(form, ButtonPressMask|KeyPressMask,peek_event);
217 // And revert to adding to the old form (Asger)
218 fl_addto_form(current_form);
222 static Window save_window;
225 void Combox::Redraw()
227 if (browser) fl_redraw_object(browser);
228 if (button) fl_redraw_object(button);
229 if (label) fl_redraw_object(label);
237 XGetInputFocus(fl_display, &save_window, &tmp); //BUG-Fix Dietmar
239 if (button && type != FL_COMBOX_NORMAL) {
240 fl_set_object_label(button, "@2<-");
241 fl_redraw_object(button);
243 int x = label->form->x + label->x, y = label->form->y + label->y;
244 fl_set_form_position(form, x, y + label->h);
245 fl_show_form(form, FL_PLACE_POSITION, FL_NOBORDER, "");
247 fl_set_browser_topline(browser, sel);
248 fl_select_browser_line(browser, sel);
250 XGrabPointer(fl_display, form->window, false,
251 ButtonPressMask | ButtonReleaseMask | PointerMotionMask,
252 GrabModeAsync, GrabModeAsync,
257 void Combox::Hide(int who)
259 if (!who && browser && label) {
260 sel = fl_get_browser(browser);
262 if (type == FL_COMBOX_INPUT)
263 fl_set_input(label, fl_get_browser_line(browser, sel));
265 fl_set_object_label(label,
266 fl_get_browser_line(browser, sel));
267 if (callback) callback(sel,cb_arg);
269 XUngrabPointer(fl_display, 0);
273 XSetInputFocus(fl_display, save_window,
274 RevertToParent, CurrentTime); // BUG-FIX-Dietmar
278 if (type != FL_COMBOX_NORMAL){
279 fl_set_object_label(button, "@2->");
280 fl_redraw_object(button);
287 void Combox::activate()
289 if (browser) fl_activate_object(browser);
290 if (button) fl_activate_object(button);
291 if (label) fl_activate_object(label);
295 void Combox::deactivate()
297 if (browser) fl_deactivate_object(browser);
298 if (button) fl_deactivate_object(button);
299 if (label) fl_deactivate_object(label);
302 void Combox::input_cb(FL_OBJECT *ob, long)
304 Combox *combo = (Combox*)ob->u_vdata;
306 char const *text = fl_get_input(ob);
309 combo->is_empty = false;
313 void Combox::combo_cb(FL_OBJECT *ob, long data)
315 Combox *combo = (Combox*)ob->u_vdata;
319 int i = combo->get();
320 switch (fl_get_button_numb(ob)) {
325 combo->callback(combo->sel,
333 combo->callback(combo->sel,
337 default: combo->Show(); break;
348 int Combox::peek_event(FL_FORM * form, void *xev)
350 FL_OBJECT *ob = (FL_OBJECT *)form->u_vdata;
351 Combox *combo = (Combox*)ob->u_vdata;
354 if(((XEvent *)xev)->type==ButtonPress && !ob->belowmouse)
357 // I don't know why belowmouse does not work, but it doesn't. (Asger)
358 if (((XEvent *) xev)->type == ButtonPress && (
359 ((XEvent *)xev)->xbutton.x - ob->x < 0 ||
360 ((XEvent *)xev)->xbutton.x - ob->x > ob->w ||
361 ((XEvent *)xev)->xbutton.y - ob->y < 0 ||
362 ((XEvent *)xev)->xbutton.y - ob->y > ob->h))
369 if (((XEvent*)xev)->type != KeyPress) return 0;
372 static int num_bytes;
373 KeySym keysym_return;
374 num_bytes = XLookupString(&((XEvent*)xev)->xkey, s_r, 10,
377 switch (keysym_return) {
379 if (fl_get_browser(combo->browser) <
380 fl_get_browser_maxline(combo->browser))
381 fl_select_browser_line(combo->browser,
382 fl_get_browser(combo->browser)+1);
383 if (fl_get_browser(combo->browser)>=
384 fl_get_browser_topline(combo->browser) +
385 fl_get_browser_screenlines(combo->browser))
386 fl_set_browser_topline(combo->browser,
387 fl_get_browser(combo->browser)
388 - fl_get_browser_screenlines(combo->browser)+1);
389 if (fl_get_browser(combo->browser)<
390 fl_get_browser_topline(combo->browser))
391 fl_set_browser_topline(combo->browser,
392 fl_get_browser(combo->browser));
395 if (fl_get_browser(combo->browser) > 1)
396 fl_select_browser_line(combo->browser,
397 fl_get_browser(combo->browser)-1);
398 if (fl_get_browser(combo->browser)>=
399 fl_get_browser_topline(combo->browser) +
400 fl_get_browser_screenlines(combo->browser))
401 fl_set_browser_topline(combo->browser,
402 fl_get_browser(combo->browser)
403 - fl_get_browser_screenlines(combo->browser)+1);
404 if (fl_get_browser(combo->browser) <
405 fl_get_browser_topline(combo->browser))
406 fl_set_browser_topline(combo->browser,
407 fl_get_browser(combo->browser));
428 //Combox combo(FL_COMBOX_DROPLIST);
429 Combox combo(FL_COMBOX_INPUT);
433 FD_test *create_form_test(void)
436 FD_test *fdui = (FD_test *) fl_calloc(1, sizeof(*fdui));
438 fdui->test = fl_bgn_form(FL_NO_BOX, 320, 190);
439 obj = fl_add_box(FL_UP_BOX,0,0,320,190,"");
440 obj = fl_add_box(FL_DOWN_BOX,10,50,300,110,"");
441 obj = fl_add_button(FL_NORMAL_BUTTON,250,10,50,30,_("Done"));
442 combo.add(10,15,120,25,135);
450 fprintf(stderr, "selected %d:%s\n", i, combo.getline());
453 int main(int argc, char *argv[])
457 // Same defaults as in lyx
459 cntl.buttonFontSize = FL_NORMAL_SIZE;
460 cntl.browserFontSize = FL_NORMAL_SIZE;
461 cntl.labelFontSize = FL_NORMAL_SIZE;
462 cntl.choiceFontSize = FL_NORMAL_SIZE;
463 cntl.inputFontSize = FL_NORMAL_SIZE;
464 cntl.borderWidth = -2;
465 fl_set_defaults(FL_PDButtonFontSize, &cntl);
466 fl_set_defaults(FL_PDBrowserFontSize, &cntl);
467 fl_set_defaults(FL_PDLabelFontSize, &cntl);
468 fl_set_defaults(FL_PDChoiceFontSize, &cntl);
469 fl_set_defaults(FL_PDInputFontSize, &cntl);
470 fl_set_defaults(FL_PDBorderWidth, &cntl);
471 fl_initialize(&argc, argv, 0, 0, 0);
473 fd_test = create_form_test();
475 /* fill-in form initialization code */
476 combo.addline("Title");
477 combo.addline("Author");
478 combo.addline("Date");
479 combo.addline("Abstract");
480 combo.addline("Chapter");
481 combo.addline("Section");
482 combo.addline("Subsection");
483 combo.addline("List");
484 combo.addline("Description");
485 combo.addline("Verse");
486 combo.addline("Verbatim");
487 combo.setcallback(combo_cb);
490 /* show the first form */
491 fl_show_form(fd_test->test,FL_PLACE_CENTER,FL_FULLBORDER,"test");