Set image source after setting decode size to fix QuinnDamerell#71

Images were decoding at full size despite setting decode size.
This seems to be because the source was set first, so the image
could decode before decode size was set.

Baconit/ContentPanels/Panels/BasicImageContentPanel.xaml.cs

@@ -347,10 +347,6 @@ public bool ReloadImage(bool useFullsize)
             bitmapImage.ImageOpened += BitmapImage_ImageOpened;
             bitmapImage.ImageFailed += BitmapImage_ImageFailed;
 
-            // Set the source.
-            stream.Seek(0);
-            bitmapImage.SetSource(stream);
-
             // Get the decode height and width.
             int decodeWidth = 0;
             int decodeHeight = 0;
@@ -379,6 +375,10 @@ public bool ReloadImage(bool useFullsize)
             // if we use physical.
             bitmapImage.DecodePixelType = App.BaconMan.MemoryMan.MemoryPressure < MemoryPressureStates.Medium ? DecodePixelType.Logical : DecodePixelType.Physical;
 
+            // Set the source. This must be done after setting decode size and other parameters, so those are respected.
+            stream.Seek(0);
+            bitmapImage.SetSource(stream);
+
             // Destroy the old image.
             if (m_image.Source != null)
             {