Refine zoom.

app/LabelModel.cpp

@@ -29,7 +29,7 @@ namespace glabels
 	/**
 	 * Default constructor.
 	 */
-	LabelModel::LabelModel() : mModified(true)
+	LabelModel::LabelModel() : mModified(true), mTmplate(0), mRotate(false)
 	{
 	}
 

app/View.cpp

@@ -31,7 +31,7 @@ namespace
 	const int    nZoomLevels = 14;
 	const double zoomLevels[nZoomLevels] = { 8, 6, 4, 3, 2, 1.5, 1, 0.75, 0.67, 0.50, 0.33, 0.25, 0.15, 0.10 };
 
-	const double ZOOM_TO_FIT_PAD = 16;
+	const double ZOOM_TO_FIT_PAD = 16.0;
 
         const QColor  shadowColor( 64, 64, 64 );
 	const double  shadowOffsetPixels = 3;
@@ -127,7 +127,7 @@ namespace glabels
 
 	void View::zoomToFit()
 	{
-		double x_scale = (72.0/physicalDpiY()) * ( width() - ZOOM_TO_FIT_PAD ) / mModel->w();
+		double x_scale = (72.0/physicalDpiX()) * ( width() - ZOOM_TO_FIT_PAD ) / mModel->w();
 		double y_scale = (72.0/physicalDpiY()) * ( height() - ZOOM_TO_FIT_PAD ) / mModel->h();
 		double newZoom = min( x_scale, y_scale );
 
@@ -169,6 +169,12 @@ namespace glabels
 		{
 			zoomToFit();
 		}
+		else
+		{
+			// Refresh to keep view location relative to window
+			resetTransform();
+			scale( mZoom*physicalDpiX()/72.0, mZoom*physicalDpiY()/72.0 );
+		}
 	}