radians, not degrees!

src/gui/print_window.cpp

@@ -127,22 +127,22 @@ void CardsPrintout::drawCard(DC& dc, const CardP& card, int card_nr) {
 	             , job->layout.margin_top  + (job->layout.card_size.height + job->layout.card_spacing.height) * row);
 	// determine rotation
 	const StyleSheet& stylesheet = job->set->stylesheetFor(card);
-	int rotation = 0;
+	Radians rotation = 0;
 	if ((stylesheet.card_width > stylesheet.card_height) != job->layout.card_landscape) {
-		rotation = 90 - rotation;
+		rotation = rad90;
 	}
 	/*
 	// size of this particular card (in mm)
 	RealSize card_size( stylesheet.card_width  * 25.4 / stylesheet.card_dpi
 	                  , stylesheet.card_height * 25.4 / stylesheet.card_dpi);
-	if (rotation == 90) swap(card_size.width, card_size.height);
+	if (is_rad90(rotation)) swap(card_size.width, card_size.height);
 	// adjust card size, to center card in the available space (from job->layout.card_size)?
 	// TODO: deal with different sized cards in general
 	*/
 	
 	// create buffers
 	int w = int(stylesheet.card_width), h = int(stylesheet.card_height); // in pixels
-	if (rotation == 90) swap(w,h);
+	if (is_rad90(rotation)) swap(w,h);
 	// Draw using text buffer
 	double zoom = IsPreview() ? 1 : 4;
 	wxBitmap buffer(w*zoom,h*zoom,32);