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diff --git a/src/painter.cpp b/src/painter.cpp
index 2a5ed33..308cab6 100644
--- a/src/painter.cpp
+++ b/src/painter.cpp
@@ -119,32 +119,22 @@ void Painter::DrawAngledText(Vector center, double angle, QString text, double s
 	// We may need this stuff... If dimension text is large enough.
 //	int textWidth = QFontMetrics(painter->font()).width(text);
 //	int textHeight = QFontMetrics(painter->font()).height();
-// NOTE: SCREEN_ZOOM is a kludge to make things look right at screen resolution...
-//	QRectF textBox(-100.0 * zoom * SCREEN_ZOOM, -100.0 * zoom * SCREEN_ZOOM, 200.0 * zoom * SCREEN_ZOOM, 200.0 * zoom * SCREEN_ZOOM);	// x, y, w, h; x/y = upper left corner
 	QRectF textBox(-100.0 * zoom * size, -100.0 * zoom * size, 200.0 * zoom * size, 200.0 * zoom * size);	// x, y, w, h; x/y = upper left corner
 
 	// This is in pixels. Might not render correctly at all zoom levels.
-	// Need to figure out if dimensions are always rendered at one size regardless of zoom,
-	// or if they have a definite size, and are thus zoomable.
-	// If zoomable, this is incorrect:
-	// (Added zoom, so this is correct now :-)
-//	float yOffset = -12.0 * zoom * SCREEN_ZOOM;
+	// Need to figure out if dimensions are always rendered at one size
+	// regardless of zoom, or if they have a definite size, and are thus
+	// zoomable.
 	float yOffset = -12.0 * zoom * size;
 
 	// Fix text so it isn't upside down...
 	if ((angle > PI * 0.5) && (angle < PI * 1.5))
 	{
 		angle += PI;
-//		yOffset = 12.0 * zoom * SCREEN_ZOOM;
 		yOffset = 12.0 * zoom * size;
 	}
 
-#if 0
-	Vector offset = CartesianToQtCoords(Vector(0, yOffset));
-	textBox.translate(offset.x, offset.y);
-#else
 	textBox.translate(0, yOffset);
-#endif
 	painter->save();
 	painter->translate(center.x, center.y);
 	// Angles are backwards in the Qt coord system, so we flip ours...
@@ -218,6 +208,7 @@ void Painter::DrawPoint(int x, int y)
 }
 
 
+// This is drawn in Qt coordinates...
 void Painter::DrawRoundedRect(QRectF rect, double radiusX, double radiusY)
 {
 	if (!painter)
@@ -227,6 +218,22 @@ void Painter::DrawRoundedRect(QRectF rect, double radiusX, double radiusY)
 }
 
 
+// This is drawn partially in Cartesian coordinates, and partially in Qt
+// coordinates. The rect itself is in Cartesian but we want to pad it by a set
+// number of pixels.
+void Painter::DrawPaddedRect(QRectF rect)
+{
+	if (!painter)
+		return;
+
+	Vector v1 = CartesianToQtCoords(Vector(rect.x(), rect.y()));
+	Vector v2 = CartesianToQtCoords(Vector(rect.right(), rect.bottom()));
+	QRectF screenRect(QPointF(v1.x, v1.y), QPointF(v2.x, v2.y));
+	screenRect.adjust(-8, 8, 8, -8);	// Left/top, right/bottom
+	painter->drawRect(screenRect);
+}
+
+
 void Painter::DrawRect(QRectF rect)
 {
 	if (!painter)
@@ -258,16 +265,9 @@ void Painter::DrawArrowhead(Vector head, Vector tail, double size)
 	Vector orthogonal = Vector(cos(orthoAngle), sin(orthoAngle));
 	Vector unit = Vector(head - tail).Unit();
 
-#if 0
-// NOTE: SCREEN_ZOOM is a kludge to make things look right at scale...
-	Point p1 = head - (unit * 9.0 * SCREEN_ZOOM);
-	Point p2 = p1 + (orthogonal * 3.0 * SCREEN_ZOOM);
-	Point p3 = p1 - (orthogonal * 3.0 * SCREEN_ZOOM);
-#else
 	Point p1 = head - (unit * 9.0 * size);
 	Point p2 = p1 + (orthogonal * 3.0 * size);
 	Point p3 = p1 - (orthogonal * 3.0 * size);
-#endif
 
 	Point p4 = CartesianToQtCoords(head);
 	Point p5 = CartesianToQtCoords(p2);