1 files changed, 143 insertions, 0 deletions
diff --git a/src/wx/closed_captions_view.cc b/src/wx/closed_captions_view.cc
new file mode 100644
index 000000000..be520057b
--- /dev/null
+++ b/src/wx/closed_captions_view.cc
@@ -0,0 +1,143 @@
+/*
+    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_view.h"
+#include <boost/bind.hpp>
+
+using std::list;
+using std::cout;
+using std::make_pair;
+
+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) {
+		if (_lines[i].IsEmpty()) {
+			dc.DrawText (wxString::Format("Line %d", i + 1), 8, line_height * i);
+		} else {
+			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::refresh (DCPTime time)
+{
+	list<TextCaption> to_show;
+	list<Caption>::iterator i = _captions.begin ();
+	while (i != _captions.end ()) {
+		if (time > i->second.to) {
+			list<Caption>::iterator tmp = i;
+			++i;
+			_captions.erase (tmp);
+		} else if (i->second.contains (time)) {
+			BOOST_FOREACH (TextCaption j, i->first.text) {
+				to_show.push_back (j);
+			}
+			++i;
+		} else {
+			++i;
+		}
+	}
+
+	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::caption (PlayerCaption caption, DCPTimePeriod period)
+{
+	_captions.push_back (make_pair (caption, period));
+}
+
+void
+ClosedCaptionsDialog::clear ()
+{
+	_captions.clear ();
+	Refresh ();
+}