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/*
Copyright (C) 2018 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
DCP-o-matic 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.
DCP-o-matic 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 DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
#include "closed_captions_dialog.h"
#include "lib/text_caption.h"
#include <boost/bind.hpp>
using std::list;
using std::cout;
using std::make_pair;
using boost::shared_ptr;
using boost::weak_ptr;
int const ClosedCaptionsDialog::_num_lines = 3;
int const ClosedCaptionsDialog::_num_chars_per_line = 30;
ClosedCaptionsDialog::ClosedCaptionsDialog (wxWindow* parent)
: wxDialog (parent, wxID_ANY, _("Closed captions"), wxDefaultPosition, wxDefaultSize,
#ifdef DCPOMATIC_OSX
/* I can't get wxFRAME_FLOAT_ON_PARENT to work on OS X, and although wxSTAY_ON_TOP keeps
the window above all others (and not just our own) it's better than nothing for now.
*/
wxDEFAULT_FRAME_STYLE | wxRESIZE_BORDER | wxFULL_REPAINT_ON_RESIZE | wxSTAY_ON_TOP
#else
wxDEFAULT_FRAME_STYLE | wxRESIZE_BORDER | wxFULL_REPAINT_ON_RESIZE | wxFRAME_FLOAT_ON_PARENT
#endif
)
{
_lines.resize (_num_lines);
Bind (wxEVT_PAINT, boost::bind (&ClosedCaptionsDialog::paint, this));
}
void
ClosedCaptionsDialog::paint ()
{
wxPaintDC dc (this);
dc.SetBackground (*wxBLACK_BRUSH);
dc.Clear ();
dc.SetTextForeground (*wxWHITE);
/* Choose a font which fits vertically */
int const line_height = dc.GetSize().GetHeight() / _num_lines;
wxFont font (*wxNORMAL_FONT);
font.SetPixelSize (wxSize (0, line_height * 0.8));
dc.SetFont (font);
for (int i = 0; i < _num_lines; ++i) {
dc.DrawText (_lines[i], 8, line_height * i);
}
}
class ClosedCaptionSorter
{
public:
bool operator() (TextCaption const & a, TextCaption const & b)
{
return from_top(a) < from_top(b);
}
private:
float from_top (TextCaption const & c) const
{
switch (c.v_align()) {
case dcp::VALIGN_TOP:
return c.v_position();
case dcp::VALIGN_CENTER:
return c.v_position() + 0.5;
case dcp::VALIGN_BOTTOM:
return 1.0 - c.v_position();
}
DCPOMATIC_ASSERT (false);
return 0;
}
};
void
ClosedCaptionsDialog::update (DCPTime time)
{
shared_ptr<Player> player = _player.lock ();
DCPOMATIC_ASSERT (player);
list<TextCaption> to_show;
BOOST_FOREACH (PlayerCaption i, player->closed_captions_for_frame(time)) {
BOOST_FOREACH (TextCaption j, i.text) {
to_show.push_back (j);
}
}
for (int j = 0; j < _num_lines; ++j) {
_lines[j] = "";
}
to_show.sort (ClosedCaptionSorter());
list<TextCaption>::const_iterator j = to_show.begin();
int k = 0;
while (j != to_show.end() && k < _num_lines) {
_lines[k] = j->text();
++j;
++k;
}
Refresh ();
}
void
ClosedCaptionsDialog::clear ()
{
Refresh ();
}
void
ClosedCaptionsDialog::set_player (weak_ptr<Player> player)
{
_player = player;
}
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