add an optional clearView method to the InfoViewController protocol

macosx/InfoActivityViewController.h

@@ -50,6 +50,6 @@
 
 - (void) setPiecesView: (id) sender;
 - (void) setPiecesViewForAvailable: (BOOL) available;
-- (void) clearPiecesView;
+- (void) clearView;
 
 @end

macosx/InfoActivityViewController.m

@@ -148,7 +148,7 @@
     [fPiecesView updateView];
 }
 
-- (void) clearPiecesView
+- (void) clearView
 {
     [fPiecesView clearView];
 }

macosx/InfoPeersViewController.h

@@ -44,7 +44,7 @@
 - (void) setInfoForTorrents: (NSArray *) torrents;
 - (void) updateInfo;
 
-- (void) clearPeers;
+- (void) clearView;
 - (void) stopWebSeedAnimation;
 
 @end

macosx/InfoPeersViewController.m

@@ -221,7 +221,7 @@
     }
 }
 
-- (void) clearPeers
+- (void) clearView
 {
     //if in the middle of animating, just stop and resize immediately
     if (fWebSeedTableAnimation)

macosx/InfoTrackersViewController.h

@@ -46,7 +46,7 @@
 - (void) setInfoForTorrents: (NSArray *) torrents;
 - (void) updateInfo;
 
-- (void) clearTrackers;
+- (void) clearView;
 
 - (void) addRemoveTracker: (id) sender;
 

macosx/InfoTrackersViewController.m

@@ -122,7 +122,7 @@
     }
 }
 
-- (void) clearTrackers
+- (void) clearView
 {
     [fTrackers release];
     fTrackers = nil;

macosx/InfoViewController.h

@@ -30,4 +30,7 @@
 - (void) setInfoForTorrents: (NSArray *) torrents;
 - (void) updateInfo;
 
+@optional
+- (void) clearView;
+
 @end

macosx/InfoWindowController.m

@@ -213,31 +213,24 @@ typedef enum
         //deselect old tab item
         [(InfoTabButtonCell *)[fTabMatrix cellWithTag: oldTabTag] setSelectedTab: NO];
         
+        if ([fViewController respondsToSelector: @selector(clearView)])
+            [fViewController clearView];
+        
         switch (oldTabTag)
         {
-            case TAB_ACTIVITY_TAG:
-                [fActivityViewController clearPiecesView];
-                break;
-            
             case TAB_TRACKERS_TAG:
-                [fTrackersViewController clearTrackers];
-                
                 oldResizeSaveKey = @"InspectorContentHeightTracker";
                 break;
-            
             case TAB_PEERS_TAG:
-                [fPeersViewController clearPeers];
-                
                 oldResizeSaveKey = @"InspectorContentHeightPeers";
                 break;
-            
             case TAB_FILE_TAG:
                 oldResizeSaveKey = @"InspectorContentHeightFiles";
                 break;
         }
         
         NSView * oldView = [fViewController view];
-        oldHeight = [oldView frame].size.height;
+        oldHeight = NSHeight([oldView frame]);
         if (oldResizeSaveKey)
             [[NSUserDefaults standardUserDefaults] setFloat: oldHeight forKey: oldResizeSaveKey];