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99d1627a47
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@6138 a592a061-630c-0410-9148-cb99ea01b6c8
232 lines
4.0 KiB
C++
232 lines
4.0 KiB
C++
// -*- C++ -*-
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/**
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* \file combox.h
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* Copyright 1996 Alejandro Aguilar Sierra
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author Alejandro Aguilar Sierra
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*
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* Full author contact details are available in file CREDITS
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*/
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/* A combination of two objects (a button and a browser) is encapsulated to
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* get a combobox-like object. All XForms functions are hidden.
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*
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* Change log:
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*
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* 2/06/1996, Alejandro Aguilar Sierra
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* Created and tested.
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*
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* 4/06/1996, Alejandro Aguilar Sierra
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* Added droplist mode (a button with a black down arrow at right)
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* and support for middle and right buttons, as XForms choice object.
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*/
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#ifndef COMBOX_H
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#define COMBOX_H
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#include FORMS_H_LOCATION
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#include <cstdlib>
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#include "LString.h"
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///
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enum combox_type {
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///
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FL_COMBOX_NORMAL,
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///
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FL_COMBOX_DROPLIST,
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///
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FL_COMBOX_INPUT
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};
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class Combox;
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/// callback prototype
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typedef void (*FL_COMBO_CB) (int, void *, Combox *);
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/// pre post prototype
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typedef void (*FL_COMBO_PRE_POST) ();
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///
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class Combox {
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public:
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///
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explicit Combox(combox_type t = FL_COMBOX_NORMAL);
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///
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~Combox();
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/** To add this object to a form. Note that there are two heights
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* for normal (button) and expanded (browser) mode each.
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*/
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void add(int x, int y, int w, int hmin, int hmax);
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/// Add lines. Same as for fl_browser object
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void addline(string const &);
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/// Add lines. Same as for fl_browser object
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void addto(string const &);
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/// Returns the selected item
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int get() const;
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/// Returns a pointer to the selected line of text
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string const getline() const;
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/// Select an arbitrary item
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void select(int);
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///
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bool select(string const &);
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/// Clear all the list
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void clear();
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/// Is the combox cleared (empty)
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bool empty() const { return is_empty; }
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/// Remove the objects from the form they are in.
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void remove();
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/**
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* Assign a callback to this object. The callback should be a void
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* function with a int, a void pointer, and a Combox pointer as
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* parameters.
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*/
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void setcallback(FL_COMBO_CB, void *);
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/// Pre handler
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void setpre(FL_COMBO_PRE_POST);
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/// Post handler
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void setpost(FL_COMBO_PRE_POST);
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/// XForms attributes
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void resize(unsigned);
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///
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void gravity(unsigned, unsigned);
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///
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void activate();
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///
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void deactivate();
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///
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void shortcut(string const &, int);
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///
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void redraw();
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///
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void show();
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///
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static void combo_cb(FL_OBJECT *, long);
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///
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static void input_cb(FL_OBJECT *, long);
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///
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static int peek_event(FL_FORM *, void *);
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protected:
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/// At least Hide should not be public
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void hide(int who = 0);
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///
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FL_OBJECT * browser;
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private:
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///
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combox_type type;
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///
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int bw;
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///
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int bh;
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///
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int sel;
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///
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bool is_empty;
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///
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FL_COMBO_CB callback;
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///
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void * cb_arg;
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///
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FL_COMBO_PRE_POST _pre;
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///
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FL_COMBO_PRE_POST _post;
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///
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FL_OBJECT * button;
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///
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FL_OBJECT * label;
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///
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FL_FORM* form;
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};
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//----------------- Inline methods ---------------------------
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inline
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void Combox::addto(string const & text)
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{
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if (browser) {
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fl_addto_browser(browser, text.c_str());
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is_empty = false;
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}
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}
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inline
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void Combox::resize(unsigned r)
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{
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fl_set_object_resize(button, r);
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if (label!= button) fl_set_object_resize(label, r);
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}
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inline
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void Combox::gravity(unsigned g1, unsigned g2)
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{
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fl_set_object_gravity(button, g1, g2);
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if (label!= button) fl_set_object_gravity(label, g1, g2);
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}
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inline
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void Combox::shortcut(string const & s, int i)
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{
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if (button)
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fl_set_object_shortcut(button, s.c_str(), i);
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}
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inline
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void Combox::setcallback(FL_COMBO_CB cb, void * a = 0)
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{
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callback = cb;
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cb_arg = a;
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}
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inline
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void Combox::setpre(FL_COMBO_PRE_POST cb)
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{
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_pre = cb;
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}
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inline
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void Combox::setpost(FL_COMBO_PRE_POST cb)
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{
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_post = cb;
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}
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inline
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int Combox::get() const
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{
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return sel;
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}
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inline
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string const Combox::getline() const
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{
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if (type == FL_COMBOX_INPUT)
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return fl_get_input(label);
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else
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return (browser && sel > 0) ?
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string(fl_get_browser_line(browser, sel)) : string();
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}
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#endif
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