From 7c0f60df43c313a8beb60b9fba295403f42e8fa3 Mon Sep 17 00:00:00 2001
From: itsmattkc <itsmattkc@gmail.com>
Date: Mon, 24 Sep 2018 22:21:59 +1000
Subject: [PATCH] backend for marker drawing (#123)

---
 project/sequence.cpp  |  3 ++-
 ui/timelineheader.cpp | 20 ++++++++++++++++++--
 2 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/project/sequence.cpp b/project/sequence.cpp
index 27a5da3f9..3d5ae8a70 100644
--- a/project/sequence.cpp
+++ b/project/sequence.cpp
@@ -10,7 +10,8 @@ Sequence::Sequence() :
     using_workarea(false),
     workarea_in(0),
     workarea_out(0)
-{}
+{
+}
 
 Sequence::~Sequence() {
     // dealloc all clips
diff --git a/ui/timelineheader.cpp b/ui/timelineheader.cpp
index cd446e272..64b90129b 100644
--- a/ui/timelineheader.cpp
+++ b/ui/timelineheader.cpp
@@ -15,6 +15,8 @@
 
 #define CLICK_RANGE 5
 #define PLAYHEAD_SIZE 6
+#define LINE_MIN_PADDING 50
+#define MARKER_SIZE 4
 
 TimelineHeader::TimelineHeader(QWidget *parent) : QWidget(parent), dragging(false), resizing_workarea(false), zoom(1), in_visible(0), snapping(true), fm(font()) {
     setCursor(Qt::ArrowCursor);
@@ -120,8 +122,6 @@ void TimelineHeader::update_header(double z) {
 	update();
 }
 
-#define LINE_MIN_PADDING 50
-
 void TimelineHeader::paintEvent(QPaintEvent*) {
     if (sequence != NULL) {
         QPainter p(this);
@@ -185,6 +185,22 @@ void TimelineHeader::paintEvent(QPaintEvent*) {
             p.drawLine(out_x, 0, out_x, height());
         }
 
+		// draw markers
+		for (int i=0;i<sequence->markers.size();i++) {
+			const Marker& m = sequence->markers.at(i);
+			int marker_x = getScreenPointFromFrame(zoom, m.frame);
+			const QPoint points[5] = {
+				QPoint(marker_x, height()-1),
+				QPoint(marker_x + MARKER_SIZE, height() - MARKER_SIZE - 1),
+				QPoint(marker_x + MARKER_SIZE, yoff),
+				QPoint(marker_x - MARKER_SIZE, yoff),
+				QPoint(marker_x - MARKER_SIZE, height() - MARKER_SIZE - 1)
+			};
+			p.setPen(Qt::black);
+			p.setBrush(QColor(128, 224, 128));
+			p.drawPolygon(points, 5);
+		}
+
         // draw playhead triangle
 		in_x = getScreenPointFromFrame(zoom, sequence->playhead - in_visible);
         QPoint start(in_x, height()+2);