2 Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20 /** @file src/wx/wx_util.cc
21 * @brief Some utility functions and classes.
24 #include <boost/thread.hpp>
28 using namespace boost;
30 /** Add a wxStaticText to a wxSizer, aligning it at vertical centre.
31 * @param s Sizer to add to.
32 * @param p Parent window for the wxStaticText.
33 * @param t Text for the wxStaticText.
34 * @param prop Properties to pass when calling Add() on the wxSizer.
37 add_label_to_sizer (wxSizer* s, wxWindow* p, string t, int prop)
39 wxStaticText* m = new wxStaticText (p, wxID_ANY, std_to_wx (t));
40 s->Add (m, prop, wxALIGN_CENTER_VERTICAL | wxALL, 6);
44 /** Pop up an error dialogue box.
45 * @param parent Parent.
49 error_dialog (wxWindow* parent, string m)
51 wxMessageDialog* d = new wxMessageDialog (parent, std_to_wx (m), wxT ("DVD-o-matic"), wxOK);
56 /** @param s wxWidgets string.
57 * @return Corresponding STL string.
60 wx_to_std (wxString s)
62 return string (s.mb_str ());
65 /** @param s STL string.
66 * @return Corresponding wxWidgets string.
71 return wxString (s.c_str(), wxConvUTF8);
74 int const ThreadedStaticText::_update_event_id = 10000;
76 /** @param parent Parent for the wxStaticText.
77 * @param initial Initial text for the wxStaticText while the computation is being run.
78 * @param fn Function which works out what the wxStaticText content should be and returns it.
80 ThreadedStaticText::ThreadedStaticText (wxWindow* parent, string initial, function<string ()> fn)
81 : wxStaticText (parent, wxID_ANY, std_to_wx (initial))
83 Connect (_update_event_id, wxEVT_COMMAND_TEXT_UPDATED, wxCommandEventHandler (ThreadedStaticText::thread_finished), 0, this);
84 _thread = new thread (bind (&ThreadedStaticText::run, this, fn));
87 ThreadedStaticText::~ThreadedStaticText ()
89 _thread->interrupt ();
94 /** Run our thread and post the result to the GUI thread via AddPendingEvent */
96 ThreadedStaticText::run (function<string ()> fn)
98 wxCommandEvent ev (wxEVT_COMMAND_TEXT_UPDATED, _update_event_id);
99 ev.SetString (std_to_wx (fn ()));
100 GetEventHandler()->AddPendingEvent (ev);
103 /** Called in the GUI thread when our worker thread has finished */
105 ThreadedStaticText::thread_finished (wxCommandEvent& ev)
107 SetLabel (ev.GetString ());