slightly fancier dotted pen on wxMSW

src/render/value/viewer.cpp

@@ -39,14 +39,29 @@ Rotation ValueViewer::getRotation() const {
 	return Rotation(deg_to_rad(getStyle()->angle), getStyle()->getExternalRect(), 1.0, getStretch());
 }
 
+#if defined(__WXMSW__)
+	// on windows, wxDOT is not actually dotted, so use a custom style to achieve that
+	static wxDash dashes_dotted[] = {0,2};
+	wxPen dotted_pen(wxColour const& color) {
+		wxPen pen(color, 1, wxUSER_DASH);
+		pen.SetDashes(2,dashes_dotted);
+		return pen;
+	}
+#else
+	wxPen dotted_pen(wxColour const& color) {
+		return wxPen(color, 1, wxDOT);
+	}
+#endif
+
 bool ValueViewer::setFieldBorderPen(RotatedDC& dc) {
 	if (!getField()->editable) return false;
 	DrawWhat what = viewer.drawWhat(this);
 	if (!(what & DRAW_BORDERS)) return false;
-	dc.SetPen( (what & DRAW_ACTIVE)
-	               ? wxPen(Color(0,128,255),   1, wxSOLID)
-	               : wxPen(Color(128,128,128), 1, wxDOT)
-	         );
+	if (what & DRAW_ACTIVE) {
+		dc.SetPen(wxPen(Color(0,128,255), 1, wxSOLID));
+	} else {
+		dc.SetPen(dotted_pen(Color(128,128,128)));
+	}
 	return true;
 }