1 files changed, 98 insertions, 0 deletions
diff --git a/libs/canvas/fill.cc b/libs/canvas/fill.cc
new file mode 100644
index 0000000000..8a16f4f794
--- /dev/null
+++ b/libs/canvas/fill.cc
@@ -0,0 +1,98 @@
+/*
+    Copyright (C) 2011-2013 Paul Davis
+    Author: 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.
+*/
+
+#include "ardour/utils.h"
+
+#include "pbd/compose.h"
+#include "pbd/convert.h"
+
+#include "canvas/fill.h"
+#include "canvas/utils.h"
+
+using namespace std;
+using namespace ArdourCanvas;
+
+Fill::Fill (Group* parent)
+	: Item (parent)
+	, _fill_color (0x000000ff)
+	, _fill (true)
+{
+
+}
+
+void
+Fill::set_fill_color (Color color)
+{
+	if (_fill_color != color) {
+		begin_visual_change ();
+		_fill_color = color;
+		end_visual_change ();
+	}
+}
+
+void
+Fill::set_fill (bool fill)
+{
+	if (_fill != fill) {
+		begin_visual_change ();
+		_fill = fill;
+		end_visual_change ();
+	}
+}
+
+void
+Fill::setup_fill_context (Cairo::RefPtr<Cairo::Context> context) const
+{
+	set_source_rgba (context, _fill_color);
+}
+
+void
+Fill::setup_gradient_context (Cairo::RefPtr<Cairo::Context> context, Rect const & self, Duple const & draw_origin) const
+{
+	Cairo::RefPtr<Cairo::LinearGradient> _gradient;
+	
+	if (_vertical_gradient) {
+		_gradient = Cairo::LinearGradient::create (draw_origin.x, self.y0, draw_origin.x, self.y1);
+	} else {
+		_gradient = Cairo::LinearGradient::create (self.x0, draw_origin.y, self.x1, draw_origin.y);
+	}
+	
+	for (StopList::const_iterator s = _stops.begin(); s != _stops.end(); ++s) {
+		double r, g, b, a;
+		color_to_rgba (s->second, r, g, b, a);
+		_gradient->add_color_stop_rgba (s->first, r, g, b, a);
+	}
+	
+	context->set_source (_gradient);
+}
+
+void
+Fill::set_gradient (StopList const & stops, bool vertical)
+{
+	begin_visual_change ();
+
+	if (stops.empty()) {
+		_stops.clear ();
+	} else {
+		_stops = stops;
+		_vertical_gradient = vertical;
+	}
+
+	end_visual_change ();
+}