LibGUI: Make model sorting imperative and move order to AbstractView

Instead of SortingProxyModel having a column+order, we move that state
to AbstractView. When you click on a column header, the view tells the
model to resort the relevant column with the new order.

This is implemented in SortingProxyModel by simply walking all the
reified source/proxy mappings and resorting their row indexes.

1 files changed, 1 insertions, 1 deletions

diff --git a/Applications/SystemMonitor/ProcessMemoryMapWidget.cpp b/Applications/SystemMonitor/ProcessMemoryMapWidget.cpp
index 37043909ec..d0412954a5 100644
--- a/Applications/SystemMonitor/ProcessMemoryMapWidget.cpp
+++ b/Applications/SystemMonitor/ProcessMemoryMapWidget.cpp
@@ -120,7 +120,7 @@ ProcessMemoryMapWidget::ProcessMemoryMapWidget()
 
     m_table_view->set_cell_painting_delegate(7, make<PagemapPaintingDelegate>());
 
-    m_table_view->model()->set_key_column_and_sort_order(0, GUI::SortOrder::Ascending);
+    m_table_view->set_key_column_and_sort_order(0, GUI::SortOrder::Ascending);
     m_timer = add<Core::Timer>(1000, [this] { refresh(); });
 }