allow quicklook of transfers through the inspector; add a quicklook button; move quicklook code from the file controller to the info controller

macosx/InfoWindowController.h

@@ -66,6 +66,8 @@
     IBOutlet NSTextField * fUploadLimitField, * fDownloadLimitField, * fRatioLimitField, * fPeersConnectField,
                         * fUploadLimitLabel, * fDownloadLimitLabel;
     
+    BOOL fQuickLookAvailable;
+    
     NSString * fInitialString;
 }
 
@@ -78,6 +80,14 @@
 - (void) setNextTab;
 - (void) setPreviousTab;
 
+- (int) visibleRowWithURL: (NSURL*) url;
+- (BOOL) quickLookSelectItems;
+- (void) toggleQuickLook: (id) sender;
+- (void) updateQuickLook;
+
+- (void) quickLookPressLeft;
+- (void) quickLookPressRight;
+
 - (void) setPiecesView: (id) sender;
 - (void) setPiecesViewForAvailable: (BOOL) available;