From 1cd07cf7570299462f649a330140df18143905e9 Mon Sep 17 00:00:00 2001
From: Rodolfo Ribeiro Gomes <rodolforg@gmail.com>
Date: Dec 13 2019 04:29:26 +0000
Subject: move waypoint renderer code to proper file


---

diff --git a/synfig-studio/src/gui/CMakeLists.txt b/synfig-studio/src/gui/CMakeLists.txt
index e011e90..955a2f4 100644
--- a/synfig-studio/src/gui/CMakeLists.txt
+++ b/synfig-studio/src/gui/CMakeLists.txt
@@ -50,6 +50,7 @@ target_sources(synfigstudio
         "${CMAKE_CURRENT_LIST_DIR}/splash.cpp"
         "${CMAKE_CURRENT_LIST_DIR}/statemanager.cpp"
         "${CMAKE_CURRENT_LIST_DIR}/valuelink.cpp"
+        "${CMAKE_CURRENT_LIST_DIR}/waypointrenderer.cpp"
         "${CMAKE_CURRENT_LIST_DIR}/workarea.cpp"
         "${CMAKE_CURRENT_LIST_DIR}/workspacehandler.cpp"
         "${CMAKE_CURRENT_LIST_DIR}/main_win32.cpp"
diff --git a/synfig-studio/src/gui/Makefile.am b/synfig-studio/src/gui/Makefile.am
index d85ded7..ff243ab 100644
--- a/synfig-studio/src/gui/Makefile.am
+++ b/synfig-studio/src/gui/Makefile.am
@@ -60,6 +60,7 @@ OTHER_HH = \
 	statemanager.h \
 	timeplotdata.h \
 	valuelink.h \
+	waypointrenderer.h \
 	workarea.h \
 	workspacehandler.h \
 	main_win32.h \
@@ -89,6 +90,7 @@ OTHER_CC = \
 	statemanager.cpp \
 	timeplotdata.cpp \
 	valuelink.cpp \
+	waypointrenderer.cpp \
 	workarea.cpp \
 	workspacehandler.cpp \
 	main_win32.cpp \
diff --git a/synfig-studio/src/gui/cellrenderer/cellrenderer_timetrack.cpp b/synfig-studio/src/gui/cellrenderer/cellrenderer_timetrack.cpp
index 39deb7c..a0839e2 100644
--- a/synfig-studio/src/gui/cellrenderer/cellrenderer_timetrack.cpp
+++ b/synfig-studio/src/gui/cellrenderer/cellrenderer_timetrack.cpp
@@ -47,6 +47,8 @@
 
 #include <gui/localization.h>
 
+#include "gui/waypointrenderer.h"
+
 #endif
 
 using namespace synfig;
@@ -69,233 +71,6 @@ namespace {
 
 /* === P R O C E D U R E S ================================================= */
 
-static Gdk::RGBA
-get_interp_color(Interpolation x)
-{
-	switch(x) {
-	case INTERPOLATION_TCB:
-		return Gdk::RGBA("#73d216");
-	case INTERPOLATION_LINEAR:
-		return Gdk::RGBA("#edd400");
-	case INTERPOLATION_CONSTANT:
-		return Gdk::RGBA("#cc0000");
-	case INTERPOLATION_HALT:
-		return Gdk::RGBA("#3465a4");
-	case INTERPOLATION_MANUAL:
-		return Gdk::RGBA("#75507b");
-	case INTERPOLATION_CLAMPED:
-		return Gdk::RGBA("#c17d11");
-	case INTERPOLATION_UNDEFINED:
-	default:
-		break;
-	}
-	return Gdk::RGBA("#555753");
-}
-
-static Gdk::RGBA
-color_darken(Gdk::RGBA x, float amount)
-{
-	x.set_red(x.get_red() * amount);
-	x.set_green(x.get_green() * amount);
-	x.set_blue(x.get_blue() * amount);
-	return x;
-}
-
-static void
-render_time_point_to_window(
-	const Cairo::RefPtr<Cairo::Context> &cr,
-	const Gdk::Rectangle& area,
-	const TimePoint &tp,
-	bool selected )
-{
-	const Gdk::RGBA black("#2e3436"); // it's black, trust me
-
-	if(selected)
-		cr->set_line_width(2.0);
-	else
-		cr->set_line_width(1.0);
-
-	Gdk::RGBA color;
-
-/*-	BEFORE ------------------------------------- */
-
-	color=get_interp_color(tp.get_before());
-	color=color_darken(color,1.0f);
-	if(selected)color=color_darken(color,1.3f);
-	cr->set_source_rgb(color.get_red(),color.get_green(),color.get_blue());
-
-	switch(tp.get_before())
-	{
-	case INTERPOLATION_TCB:
-		cr->save();
-		cr->translate(area.get_x(), area.get_y());
-		cr->scale(area.get_width(), area.get_height());
-		cr->arc(0.5, 0.5, 0.5, 90*M_PI/180.0, 270*M_PI/180.0);
-		cr->fill_preserve();
-		cr->restore();
-		cr->set_source_rgb(black.get_red(),black.get_green(),black.get_blue());
-		cr->stroke();
-		break;
-
-	case INTERPOLATION_HALT:
-		cr->save();
-		cr->translate(area.get_x(), area.get_y());
-		cr->scale(area.get_width(), area.get_height()*2);
-		cr->move_to(0.5, 0.5);
-		cr->arc(0.5, 0.5, 0.5, 180*M_PI/180.0, 270*M_PI/180.0);
-		cr->fill();
-		cr->arc(0.5, 0.5, 0.5, 180*M_PI/180.0, 270*M_PI/180.0);
-		cr->restore();
-		cr->set_source_rgb(black.get_red(),black.get_green(),black.get_blue());
-		cr->stroke();
-
-		cr->set_source_rgb(black.get_red(),black.get_green(),black.get_blue());
-		cr->move_to(area.get_x(),area.get_y()+area.get_height());
-		cr->line_to(area.get_x()+area.get_width()/2,area.get_y()+area.get_height());
-		cr->stroke();
-		break;
-
-	case INTERPOLATION_LINEAR:
-		cr->save();
-		cr->move_to(area.get_x()+area.get_width()/2,area.get_y());
-		cr->line_to(area.get_x(),area.get_y()+area.get_height());
-		cr->line_to(area.get_x()+area.get_width()/2,area.get_y()+area.get_height());
-		cr->fill_preserve();
-		cr->set_source_rgb(black.get_red(),black.get_green(),black.get_blue());
-		cr->stroke();
-		cr->restore();
-		break;
-
-	case INTERPOLATION_CONSTANT:
-		cr->save();
-		cr->move_to(area.get_x()+area.get_width()/2,area.get_y());
-		cr->line_to(area.get_x()+area.get_width()/4,area.get_y());
-		cr->line_to(area.get_x()+area.get_width()/4,area.get_y()+area.get_height()/2);
-		cr->line_to(area.get_x(),area.get_y()+area.get_height()/2);
-		cr->line_to(area.get_x(),area.get_y()+area.get_height());
-		cr->line_to(area.get_x()+area.get_width()/2,area.get_y()+area.get_height());
-		cr->fill_preserve();
-		cr->set_source_rgb(black.get_red(),black.get_green(),black.get_blue());
-		cr->stroke();
-		cr->restore();
-		break;
-
-	case INTERPOLATION_CLAMPED:
-		cr->save();
-		cr->line_to(area.get_x()+area.get_width()/2,area.get_y());
-		cr->line_to(area.get_x(),area.get_y()+area.get_height()/2);
-		cr->line_to(area.get_x()+area.get_width()/2,area.get_y()+area.get_height());
-		cr->fill_preserve();
-		cr->set_source_rgb(black.get_red(),black.get_green(),black.get_blue());
-		cr->stroke();
-		cr->restore();
-		break;
-
-	default:
-		cr->save();
-		cr->line_to(area.get_x()+area.get_width()/2,area.get_y());
-		cr->line_to(area.get_x()+area.get_width()/3,area.get_y());
-		cr->line_to(area.get_x(),area.get_y()+area.get_height()/3);
-		cr->line_to(area.get_x(),area.get_y()+area.get_height()-area.get_height()/3);
-		cr->line_to(area.get_x()+area.get_width()/3,area.get_y()+area.get_height());
-		cr->line_to(area.get_x()+area.get_width()/2,area.get_y()+area.get_height());
-		cr->fill_preserve();
-		cr->set_source_rgb(black.get_red(),black.get_green(),black.get_blue());
-		cr->stroke();
-		cr->restore();
-		break;
-	}
-
-/*-	AFTER -------------------------------------- */
-
-	color=get_interp_color(tp.get_after());
-	color=color_darken(color,0.8f);
-	if(selected)color=color_darken(color,1.3f);
-	cr->set_source_rgb(color.get_red(),color.get_green(),color.get_blue());
-
-	switch(tp.get_after())
-	{
-	case INTERPOLATION_TCB:
-		cr->save();
-		cr->translate(area.get_x(), area.get_y());
-		cr->scale(area.get_width(), area.get_height());
-		cr->arc(0.5, 0.5, 0.5, -90*M_PI/180.0, 90*M_PI/180.0);
-		cr->fill_preserve();
-		cr->restore();
-		cr->set_source_rgb(black.get_red(),black.get_green(),black.get_blue());
-		cr->stroke();
-		break;
-
-	case INTERPOLATION_HALT:
-		cr->save();
-		cr->translate(area.get_x(), area.get_y());
-		cr->scale(area.get_width(), area.get_height()*2);
-		cr->move_to(0.5, 0.0);
-		cr->arc(0.5, 0.0, 0.5, 0*M_PI/180.0, 90*M_PI/180.0);
-		cr->fill();
-		cr->arc(0.5, 0.0, 0.5, 0*M_PI / 180.0, 90*M_PI / 180.0);
-		cr->restore();
-		cr->set_source_rgb(black.get_red(),black.get_green(),black.get_blue());
-		cr->stroke();
-
-		cr->set_source_rgb(black.get_red(),black.get_green(),black.get_blue());
-		cr->move_to(area.get_x()+area.get_width()/2,area.get_y());
-		cr->line_to(area.get_x()+area.get_width(),area.get_y());
-		cr->stroke();
-		break;
-
-	case INTERPOLATION_LINEAR:
-		cr->save();
-		cr->move_to(area.get_x()+area.get_width()/2,area.get_y());
-		cr->line_to(area.get_x()+area.get_width(),area.get_y());
-		cr->line_to(area.get_x()+area.get_width()/2,area.get_y()+area.get_height());
-		cr->fill_preserve();
-		cr->set_source_rgb(black.get_red(),black.get_green(),black.get_blue());
-		cr->stroke();
-		cr->restore();
-		break;
-
-	case INTERPOLATION_CONSTANT:
-		cr->save();
-		cr->move_to(area.get_x()+area.get_width()/2,area.get_y());
-		cr->line_to(area.get_x()+area.get_width(),area.get_y());
-		cr->line_to(area.get_x()+area.get_width(),area.get_y()+area.get_height()/2);
-		cr->line_to(area.get_x()+area.get_width()-area.get_width()/4,area.get_y()+area.get_height()/2);
-		cr->line_to(area.get_x()+area.get_width()-area.get_width()/4,area.get_y()+area.get_height());
-		cr->line_to(area.get_x()+area.get_width()/2,area.get_y()+area.get_height());
-		cr->fill_preserve();
-		cr->set_source_rgb(black.get_red(),black.get_green(),black.get_blue());
-		cr->stroke();
-		cr->restore();
-		break;
-
-	case INTERPOLATION_CLAMPED:
-		cr->save();
-		cr->line_to(area.get_x()+area.get_width()/2,area.get_y());
-		cr->line_to(area.get_x()+area.get_width(),area.get_y()+area.get_height()/2);
-		cr->line_to(area.get_x()+area.get_width()/2,area.get_y()+area.get_height());
-		cr->fill_preserve();
-		cr->set_source_rgb(black.get_red(),black.get_green(),black.get_blue());
-		cr->stroke();
-		cr->restore();
-		break;
-
-	default:
-		cr->save();
-		cr->line_to(area.get_x()+area.get_width()/2,area.get_y());
-		cr->line_to(area.get_x()+area.get_width()-area.get_width()/3,area.get_y());
-		cr->line_to(area.get_x()+area.get_width(),area.get_y()+area.get_height()/3);
-		cr->line_to(area.get_x()+area.get_width(),area.get_y()+area.get_height()-area.get_height()/3);
-		cr->line_to(area.get_x()+area.get_width()-area.get_width()/3,area.get_y()+area.get_height());
-		cr->line_to(area.get_x()+area.get_width()/2,area.get_y()+area.get_height());
-		cr->fill_preserve();
-		cr->set_source_rgb(black.get_red(),black.get_green(),black.get_blue());
-		cr->stroke();
-		cr->restore();
-		break;
-	}
-}
-
 static void
 draw_activepoint_off(
 	const Cairo::RefPtr<Cairo::Context> &cr,
@@ -611,7 +386,7 @@ CellRenderer_TimeTrack::render_vfunc(
 					cell_area.get_height() - 2 );
 				TimePoint tp_copy = *i;
 				tp_copy.set_time(t);
-				render_time_point_to_window(cr, area, tp_copy, selected);
+				WaypointRenderer::render_time_point_to_window(cr, area, tp_copy, selected);
 			}
 		}
 
@@ -622,7 +397,7 @@ CellRenderer_TimeTrack::render_vfunc(
 				cell_area.get_y() + 1,
 				cell_area.get_height() - 2,
 				cell_area.get_height() - 2 );
-			render_time_point_to_window(cr, area, *i, true);
+			WaypointRenderer::render_time_point_to_window(cr, area, *i, true);
 		}
 	}
 
diff --git a/synfig-studio/src/gui/waypointrenderer.cpp b/synfig-studio/src/gui/waypointrenderer.cpp
new file mode 100644
index 0000000..e744cca
--- /dev/null
+++ b/synfig-studio/src/gui/waypointrenderer.cpp
@@ -0,0 +1,283 @@
+/* === S Y N F I G ========================================================= */
+/*!	\file waypointrenderer.cpp
+**
+**	$Id$
+**
+**	\legal
+**	Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+**  ......... ... 2019 Rodolfo R. Gomes
+**
+**	This package 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 package 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.
+**	\endlegal
+*/
+/* ========================================================================= */
+
+/* === H E A D E R S ======================================================= */
+
+#ifdef USING_PCH
+#	include "pch.h"
+#else
+# ifdef HAVE_CONFIG_H
+#  include <config.h>
+# endif
+
+#include "waypointrenderer.h"
+
+#include <gdkmm/rgba.h>
+
+#include <synfig/interpolation.h>
+
+#endif
+
+/* === U S I N G =========================================================== */
+
+using namespace synfig;
+
+/* === M A C R O S ========================================================= */
+
+/* === G L O B A L S ======================================================= */
+
+/* === P R O C E D U R E S ================================================= */
+
+/* === C L A S S E S ======================================================= */
+
+namespace studio {
+
+static Gdk::RGBA
+get_interp_color(Interpolation x)
+{
+	switch(x) {
+	case INTERPOLATION_TCB:
+		return Gdk::RGBA("#73d216");
+	case INTERPOLATION_LINEAR:
+		return Gdk::RGBA("#edd400");
+	case INTERPOLATION_CONSTANT:
+		return Gdk::RGBA("#cc0000");
+	case INTERPOLATION_HALT:
+		return Gdk::RGBA("#3465a4");
+	case INTERPOLATION_MANUAL:
+		return Gdk::RGBA("#75507b");
+	case INTERPOLATION_CLAMPED:
+		return Gdk::RGBA("#c17d11");
+	case INTERPOLATION_UNDEFINED:
+	default:
+		break;
+	}
+	return Gdk::RGBA("#555753");
+}
+
+static Gdk::RGBA
+color_darken(Gdk::RGBA x, float amount)
+{
+	x.set_red(x.get_red() * amount);
+	x.set_green(x.get_green() * amount);
+	x.set_blue(x.get_blue() * amount);
+	return x;
+}
+
+void
+WaypointRenderer::render_time_point_to_window(
+	const Cairo::RefPtr<Cairo::Context> &cr,
+	const Gdk::Rectangle& area,
+	const TimePoint &tp,
+	bool selected )
+{
+	const Gdk::RGBA black("#2e3436"); // it's black, trust me
+
+	if(selected)
+		cr->set_line_width(2.0);
+	else
+		cr->set_line_width(1.0);
+
+	Gdk::RGBA color;
+
+/*-	BEFORE ------------------------------------- */
+
+	color=get_interp_color(tp.get_before());
+	color=color_darken(color,1.0f);
+	if(selected)color=color_darken(color,1.3f);
+	cr->set_source_rgb(color.get_red(),color.get_green(),color.get_blue());
+
+	switch(tp.get_before())
+	{
+	case INTERPOLATION_TCB:
+		cr->save();
+		cr->translate(area.get_x(), area.get_y());
+		cr->scale(area.get_width(), area.get_height());
+		cr->move_to(0.5, 1);
+		cr->arc(0.5, 0.5, 0.5, 90*M_PI/180.0, 270*M_PI/180.0);
+		cr->fill_preserve();
+		cr->restore();
+		cr->set_source_rgb(black.get_red(),black.get_green(),black.get_blue());
+		cr->stroke();
+		break;
+
+	case INTERPOLATION_HALT:
+		cr->save();
+		cr->translate(area.get_x(), area.get_y());
+		cr->scale(area.get_width(), area.get_height()*2);
+		cr->move_to(0.5, 0.5);
+		cr->arc(0.5, 0.5, 0.5, 180*M_PI/180.0, 270*M_PI/180.0);
+		cr->fill();
+		cr->arc(0.5, 0.5, 0.5, 180*M_PI/180.0, 270*M_PI/180.0);
+		cr->restore();
+		cr->set_source_rgb(black.get_red(),black.get_green(),black.get_blue());
+		cr->stroke();
+
+		cr->set_source_rgb(black.get_red(),black.get_green(),black.get_blue());
+		cr->move_to(area.get_x(),area.get_y()+area.get_height());
+		cr->line_to(area.get_x()+area.get_width()/2,area.get_y()+area.get_height());
+		cr->stroke();
+		break;
+
+	case INTERPOLATION_LINEAR:
+		cr->save();
+		cr->move_to(area.get_x()+area.get_width()/2,area.get_y());
+		cr->line_to(area.get_x(),area.get_y()+area.get_height());
+		cr->line_to(area.get_x()+area.get_width()/2,area.get_y()+area.get_height());
+		cr->fill_preserve();
+		cr->set_source_rgb(black.get_red(),black.get_green(),black.get_blue());
+		cr->stroke();
+		cr->restore();
+		break;
+
+	case INTERPOLATION_CONSTANT:
+		cr->save();
+		cr->move_to(area.get_x()+area.get_width()/2,area.get_y());
+		cr->line_to(area.get_x()+area.get_width()/4,area.get_y());
+		cr->line_to(area.get_x()+area.get_width()/4,area.get_y()+area.get_height()/2);
+		cr->line_to(area.get_x(),area.get_y()+area.get_height()/2);
+		cr->line_to(area.get_x(),area.get_y()+area.get_height());
+		cr->line_to(area.get_x()+area.get_width()/2,area.get_y()+area.get_height());
+		cr->fill_preserve();
+		cr->set_source_rgb(black.get_red(),black.get_green(),black.get_blue());
+		cr->stroke();
+		cr->restore();
+		break;
+
+	case INTERPOLATION_CLAMPED:
+		cr->save();
+		cr->move_to(area.get_x()+area.get_width()/2,area.get_y());
+		cr->line_to(area.get_x(),area.get_y()+area.get_height()/2);
+		cr->line_to(area.get_x()+area.get_width()/2,area.get_y()+area.get_height());
+		cr->fill_preserve();
+		cr->set_source_rgb(black.get_red(),black.get_green(),black.get_blue());
+		cr->stroke();
+		cr->restore();
+		break;
+
+	default:
+		cr->save();
+		cr->line_to(area.get_x()+area.get_width()/2,area.get_y());
+		cr->line_to(area.get_x()+area.get_width()/3,area.get_y());
+		cr->line_to(area.get_x(),area.get_y()+area.get_height()/3);
+		cr->line_to(area.get_x(),area.get_y()+area.get_height()-area.get_height()/3);
+		cr->line_to(area.get_x()+area.get_width()/3,area.get_y()+area.get_height());
+		cr->line_to(area.get_x()+area.get_width()/2,area.get_y()+area.get_height());
+		cr->fill_preserve();
+		cr->set_source_rgb(black.get_red(),black.get_green(),black.get_blue());
+		cr->stroke();
+		cr->restore();
+		break;
+	}
+
+/*-	AFTER -------------------------------------- */
+
+	color=get_interp_color(tp.get_after());
+	color=color_darken(color,0.8f);
+	if(selected)color=color_darken(color,1.3f);
+	cr->set_source_rgb(color.get_red(),color.get_green(),color.get_blue());
+
+	switch(tp.get_after())
+	{
+	case INTERPOLATION_TCB:
+		cr->save();
+		cr->translate(area.get_x(), area.get_y());
+		cr->scale(area.get_width(), area.get_height());
+		cr->arc(0.5, 0.5, 0.5, -90*M_PI/180.0, 90*M_PI/180.0);
+		cr->fill_preserve();
+		cr->restore();
+		cr->set_source_rgb(black.get_red(),black.get_green(),black.get_blue());
+		cr->stroke();
+		break;
+
+	case INTERPOLATION_HALT:
+		cr->save();
+		cr->translate(area.get_x(), area.get_y());
+		cr->scale(area.get_width(), area.get_height()*2);
+		cr->move_to(0.5, 0.0);
+		cr->arc(0.5, 0.0, 0.5, 0*M_PI/180.0, 90*M_PI/180.0);
+		cr->fill();
+		cr->arc(0.5, 0.0, 0.5, 0*M_PI / 180.0, 90*M_PI / 180.0);
+		cr->restore();
+		cr->set_source_rgb(black.get_red(),black.get_green(),black.get_blue());
+		cr->stroke();
+
+		cr->set_source_rgb(black.get_red(),black.get_green(),black.get_blue());
+		cr->move_to(area.get_x()+area.get_width()/2,area.get_y());
+		cr->line_to(area.get_x()+area.get_width(),area.get_y());
+		cr->stroke();
+		break;
+
+	case INTERPOLATION_LINEAR:
+		cr->save();
+		cr->move_to(area.get_x()+area.get_width()/2,area.get_y());
+		cr->line_to(area.get_x()+area.get_width(),area.get_y());
+		cr->line_to(area.get_x()+area.get_width()/2,area.get_y()+area.get_height());
+		cr->fill_preserve();
+		cr->set_source_rgb(black.get_red(),black.get_green(),black.get_blue());
+		cr->stroke();
+		cr->restore();
+		break;
+
+	case INTERPOLATION_CONSTANT:
+		cr->save();
+		cr->move_to(area.get_x()+area.get_width()/2,area.get_y());
+		cr->line_to(area.get_x()+area.get_width(),area.get_y());
+		cr->line_to(area.get_x()+area.get_width(),area.get_y()+area.get_height()/2);
+		cr->line_to(area.get_x()+area.get_width()-area.get_width()/4,area.get_y()+area.get_height()/2);
+		cr->line_to(area.get_x()+area.get_width()-area.get_width()/4,area.get_y()+area.get_height());
+		cr->line_to(area.get_x()+area.get_width()/2,area.get_y()+area.get_height());
+		cr->fill_preserve();
+		cr->set_source_rgb(black.get_red(),black.get_green(),black.get_blue());
+		cr->stroke();
+		cr->restore();
+		break;
+
+	case INTERPOLATION_CLAMPED:
+		cr->save();
+		cr->line_to(area.get_x()+area.get_width()/2,area.get_y());
+		cr->line_to(area.get_x()+area.get_width(),area.get_y()+area.get_height()/2);
+		cr->line_to(area.get_x()+area.get_width()/2,area.get_y()+area.get_height());
+		cr->fill_preserve();
+		cr->set_source_rgb(black.get_red(),black.get_green(),black.get_blue());
+		cr->stroke();
+		cr->restore();
+		break;
+
+	default:
+		cr->save();
+		cr->line_to(area.get_x()+area.get_width()/2,area.get_y());
+		cr->line_to(area.get_x()+area.get_width()-area.get_width()/3,area.get_y());
+		cr->line_to(area.get_x()+area.get_width(),area.get_y()+area.get_height()/3);
+		cr->line_to(area.get_x()+area.get_width(),area.get_y()+area.get_height()-area.get_height()/3);
+		cr->line_to(area.get_x()+area.get_width()-area.get_width()/3,area.get_y()+area.get_height());
+		cr->line_to(area.get_x()+area.get_width()/2,area.get_y()+area.get_height());
+		cr->fill_preserve();
+		cr->set_source_rgb(black.get_red(),black.get_green(),black.get_blue());
+		cr->stroke();
+		cr->restore();
+		break;
+	}
+}
+
+
+}
diff --git a/synfig-studio/src/gui/waypointrenderer.h b/synfig-studio/src/gui/waypointrenderer.h
new file mode 100644
index 0000000..4f32bf2
--- /dev/null
+++ b/synfig-studio/src/gui/waypointrenderer.h
@@ -0,0 +1,56 @@
+/* === S Y N F I G ========================================================= */
+/*!	\file waypointrenderer.h
+**
+**	$Id$
+**
+**	\legal
+**	Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+**	......... ... 2019 Rodolfo R. Gomes
+**
+**	This package 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 package 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.
+**	\endlegal
+*/
+/* ========================================================================= */
+
+/* === S T A R T =========================================================== */
+
+#ifndef __SYNFIG_STUDIO_WAYPOINTRENDERER_H
+#define __SYNFIG_STUDIO_WAYPOINTRENDERER_H
+
+/* === H E A D E R S ======================================================= */
+#include <gdkmm/rectangle.h>
+#include <cairomm/context.h>
+
+#include <synfig/node.h>
+/* === M A C R O S ========================================================= */
+
+/* === T Y P E D E F S ===================================================== */
+
+/* === C L A S S E S & S T R U C T S ======================================= */
+
+namespace studio {
+
+class WaypointRenderer
+{
+public:
+	static void
+	render_time_point_to_window(
+		const Cairo::RefPtr<Cairo::Context> &cr,
+		const Gdk::Rectangle& area,
+		const synfig::TimePoint &tp,
+		bool selected );
+}; // END of class WaypointRenderer
+
+}; // END of namespace studio
+
+/* === E N D =============================================================== */
+
+#endif // WAYPOINTRENDERER_H