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/*
Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/** @file src/wx/wx_util.cc
* @brief Some utility functions and classes.
*/
#include <boost/thread.hpp>
#include "wx_util.h"
using namespace std;
using namespace boost;
/** Add a wxStaticText to a wxSizer, aligning it at vertical centre.
* @param s Sizer to add to.
* @param p Parent window for the wxStaticText.
* @param t Text for the wxStaticText.
* @param prop Properties to pass when calling Add() on the wxSizer.
*/
wxStaticText *
add_label_to_sizer (wxSizer* s, wxWindow* p, string t, int prop)
{
wxStaticText* m = new wxStaticText (p, wxID_ANY, std_to_wx (t));
s->Add (m, prop, wxALIGN_CENTER_VERTICAL | wxALL, 6);
return m;
}
/** Pop up an error dialogue box.
* @param parent Parent.
* @param m Message.
*/
void
error_dialog (wxWindow* parent, string m)
{
wxMessageDialog* d = new wxMessageDialog (parent, std_to_wx (m), wxT ("DVD-o-matic"), wxOK);
d->ShowModal ();
d->Destroy ();
}
/** @param s wxWidgets string.
* @return Corresponding STL string.
*/
string
wx_to_std (wxString s)
{
return string (s.mb_str ());
}
/** @param s STL string.
* @return Corresponding wxWidgets string.
*/
wxString
std_to_wx (string s)
{
return wxString (s.c_str(), wxConvUTF8);
}
int const ThreadedStaticText::_update_event_id = 10000;
/** @param parent Parent for the wxStaticText.
* @param initial Initial text for the wxStaticText while the computation is being run.
* @param fn Function which works out what the wxStaticText content should be and returns it.
*/
ThreadedStaticText::ThreadedStaticText (wxWindow* parent, string initial, function<string ()> fn)
: wxStaticText (parent, wxID_ANY, std_to_wx (initial))
{
Connect (_update_event_id, wxEVT_COMMAND_TEXT_UPDATED, wxCommandEventHandler (ThreadedStaticText::thread_finished), 0, this);
_thread = new thread (bind (&ThreadedStaticText::run, this, fn));
}
ThreadedStaticText::~ThreadedStaticText ()
{
_thread->interrupt ();
_thread->join ();
delete _thread;
}
/** Run our thread and post the result to the GUI thread via AddPendingEvent */
void
ThreadedStaticText::run (function<string ()> fn)
{
wxCommandEvent ev (wxEVT_COMMAND_TEXT_UPDATED, _update_event_id);
ev.SetString (std_to_wx (fn ()));
GetEventHandler()->AddPendingEvent (ev);
}
/** Called in the GUI thread when our worker thread has finished */
void
ThreadedStaticText::thread_finished (wxCommandEvent& ev)
{
SetLabel (ev.GetString ());
}
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