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 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.
31 #include FORMS_H_LOCATION
44 /// callback prototype
45 typedef void (*FL_COMBO_CB) (int, void *);
46 /// pre post prototype
47 typedef void (*FL_COMBO_PRE_POST) ();
54 explicit Combox(combox_type t = FL_COMBOX_NORMAL);
58 /** To add this object to a form. Note that there are two heights
59 for normal (button) and expanded (browser) mode each. */
60 void add(int x, int y, int w, int hmin, int hmax);
62 /// Add lines. Same as for fl_browser object
63 void addline(char const *);
64 /// Add lines. Same as for fl_browser object
65 void addto(char const *);
67 /// Returns the selected item
70 /// Returns a pointer to the selected line of text
71 char const * getline();
73 /// Select an arbitrary item
76 bool select_text(char const *);
78 /// Clear all the list
81 /// Is the combox cleared (empty)
82 bool empty() { return is_empty; }
84 /// Remove the objects from the form they are in.
87 /** Assign a callback to this object. The callback should be a void
88 function with a int and a void pointer as parameters. */
89 void setcallback(FL_COMBO_CB, void *);
92 void setpre(FL_COMBO_PRE_POST);
94 void setpost(FL_COMBO_PRE_POST);
97 void resize(unsigned);
99 void gravity(unsigned, unsigned);
105 void shortcut(char const *, int);
111 static void combo_cb(FL_OBJECT *, long);
113 static void input_cb(FL_OBJECT *, long);
115 static int peek_event(FL_FORM *, void *);
117 /// At least Hide should not be public
118 void Hide(int who = 0);
131 FL_COMBO_CB callback;
135 FL_COMBO_PRE_POST _pre;
137 FL_COMBO_PRE_POST _post;
148 //----------------- Inline methods ---------------------------
151 void Combox::addto(char const * text)
154 fl_addto_browser(browser, text);
161 void Combox::resize(unsigned r)
163 fl_set_object_resize(button, r);
164 if (label!= button) fl_set_object_resize(label, r);
169 void Combox::gravity(unsigned g1, unsigned g2)
171 fl_set_object_gravity(button, g1, g2);
172 if (label!= button) fl_set_object_gravity(label, g1, g2);
177 void Combox::shortcut(char const * s, int i)
180 fl_set_object_shortcut(button, s, i);
185 void Combox::setcallback(FL_COMBO_CB cb, void * a = 0)
193 void Combox::setpre(FL_COMBO_PRE_POST cb)
200 void Combox::setpost(FL_COMBO_PRE_POST cb)
214 char const * Combox::getline()
216 if (type == FL_COMBOX_INPUT)
217 return fl_get_input(label);
219 return browser ? fl_get_browser_line(browser, sel) : 0;