X-Git-Url: https://vcs.maemo.org/git/?a=blobdiff_plain;f=ameterwidget.cpp;fp=ameterwidget.cpp;h=4d2203d2c4b43296fd2d6cfe93ad8dda900a13ba;hb=1334db158372c1eeb91bb10031ac9285060a295a;hp=f11ee02ed457c4930d59e42a19f62e53ab745052;hpb=0b6a14eb70fc1be283fe2d4d84645f4d96615dc5;p=ameter

diff --git a/ameterwidget.cpp b/ameterwidget.cpp
index f11ee02..4d2203d 100644
--- a/ameterwidget.cpp
+++ b/ameterwidget.cpp
@@ -30,6 +30,8 @@ AMeterWidget::AMeterWidget(QWidget *parent)
 	bx = 0;
 	by = 0;
 	bz = 0;
+
+	in_reset = 1;
 }
 
 AMeterWidget::~AMeterWidget()
@@ -55,13 +57,16 @@ void AMeterWidget::paintEvent(QPaintEvent *e)
 	qreal cx, cy, rx, ry;
 	qreal x1, y1, a;
 
-	a = sqrt(ax * ax + ay * ay + az * az);
-
 	if (background)
 	{
 		paint.drawImage(QPoint(0, 0), *background);
 	}
 
+	if (in_reset) {
+		return;
+	}
+
+	a = sqrt(ax * ax + ay * ay + az * az);
 	paint.setRenderHints(QPainter::Antialiasing);
 
 	cx = width() / 2;
@@ -170,16 +175,25 @@ bool AMeterWidget::filter(QAccelerometerReading *reading)
 	ay = reading->y() * r_g;
 	az = reading->z() * r_g;
 
-	if (smoothing > 0 && smoothing < 4)
+	if (!in_reset && smoothing > 0 && smoothing < 4)
 	{
 		k = smoothing_k[smoothing];
 		ax = ax * k + bx * (1.0 - k);
 		ay = ay * k + by * (1.0 - k);
 		az = az * k + bz * (1.0 - k);
 	}
-	
+
+	in_reset = 0;	
 	update();
 
 	return true;
 }
 
+void AMeterWidget::reset()
+{
+	in_reset = 0;
+	ax = 0;
+	ay = 0;
+	az = 0;
+}
+