From: Joel Holdsworth <redacted>
Date: Sat, 7 Jul 2012 07:16:38 +0000 (+0100)
Subject: Clip signal painting with glScissor
X-Git-Tag: pulseview-0.1.0~325
X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=aeed8b418c0e751d7fef6aeaea1347af2077f904;p=pulseview.git

Clip signal painting with glScissor
---

diff --git a/sigview.cpp b/sigview.cpp
index 8461af6e..dea3cbc1 100644
--- a/sigview.cpp
+++ b/sigview.cpp
@@ -86,6 +86,8 @@ void SigView::paintEvent(QPaintEvent *event)
 	glClear(GL_COLOR_BUFFER_BIT);
 
 	// Plot the signal
+	glEnable(GL_SCISSOR_TEST);
+	glScissor(LabelMarginWidth, 0, width(), height());
 	offset = RulerHeight;
 	BOOST_FOREACH(const shared_ptr<Signal> s, sigs)
 	{
@@ -99,6 +101,8 @@ void SigView::paintEvent(QPaintEvent *event)
 		offset += SignalHeight;
 	}
 
+	glDisable(GL_SCISSOR_TEST);
+
 	// Prepare for QPainter rendering
 	glMatrixMode(GL_MODELVIEW);
 	glPopMatrix();