IconView: Deselect items that are hidden by the filter

during selectAll and invertSelection
This resolves bug 2750

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
(cherry picked from commit 057d9fe7a4)

src/iconview/qiconview.cpp

@@ -3872,6 +3872,7 @@ void QIconView::selectAll( bool select )
 	        rr = rr.unite( item->rect() );
 	        changed = TRUE;
 	    }
+	}
 	else {
 	    if ( FALSE != item->isSelected() ) {
 	        item->setSelected( FALSE, TRUE );
@@ -3879,7 +3880,6 @@ void QIconView::selectAll( bool select )
 	    }
 	}
     }
-    }
     viewport()->setUpdatesEnabled( ue );
     // we call updateContents not repaintContents because of possible previous updateContents
     QScrollView::updateContents( rr );
@@ -3906,8 +3906,16 @@ void QIconView::invertSelection()
     bool b = signalsBlocked();
     blockSignals( TRUE );
     QIconViewItem *item = d->firstItem;
-    for ( ; item; item = item->next )
+    for ( ; item; item = item->next ) {
+        if (item->isVisible()) {
             item->setSelected( !item->isSelected(), TRUE );
+        }
+        else {
+            if ( FALSE != item->isSelected() ) {
+                item->setSelected( FALSE, TRUE );
+            }
+        }
+    }
     blockSignals( b );
     emit selectionChanged();
 }