Fix toggling the header in the generic wxListCtrl.

We need to update the lfags first before deciding whether we should create or
destroy the header.

Also add a test for toggling the header to the listctrl sample.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@63637 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

samples/listctrl/listtest.cpp

@@ -150,13 +150,17 @@ BEGIN_EVENT_TABLE(MyFrame, wxFrame)
     EVT_MENU(LIST_FREEZE, MyFrame::OnFreeze)
     EVT_MENU(LIST_THAW, MyFrame::OnThaw)
     EVT_MENU(LIST_TOGGLE_LINES, MyFrame::OnToggleLines)
+    EVT_MENU(LIST_TOGGLE_HEADER, MyFrame::OnToggleHeader)
 #ifdef __WXOSX__
     EVT_MENU(LIST_MAC_USE_GENERIC, MyFrame::OnToggleMacUseGeneric)
 #endif // __WXOSX__
     EVT_MENU(LIST_FIND, MyFrame::OnFind)
 
-    EVT_UPDATE_UI(LIST_SHOW_COL_INFO, MyFrame::OnUpdateShowColInfo)
+    EVT_UPDATE_UI(LIST_SHOW_COL_INFO, MyFrame::OnUpdateUIEnableInReport)
+    EVT_UPDATE_UI(LIST_TOGGLE_HEADER, MyFrame::OnUpdateUIEnableInReport)
+
     EVT_UPDATE_UI(LIST_TOGGLE_MULTI_SEL, MyFrame::OnUpdateToggleMultiSel)
+    EVT_UPDATE_UI(LIST_TOGGLE_HEADER, MyFrame::OnUpdateToggleHeader)
 END_EVENT_TABLE()
 
 // My frame constructor
@@ -251,8 +255,11 @@ MyFrame::MyFrame(const wxChar *title)
     menuList->Append(LIST_THAW, wxT("Tha&w\tCtrl-W"));
     menuList->AppendSeparator();
     menuList->AppendCheckItem(LIST_TOGGLE_LINES, wxT("Toggle &lines\tCtrl-I"));
-    menuList->Append(LIST_TOGGLE_MULTI_SEL, wxT("&Multiple selection\tCtrl-M"),
+    menuList->AppendCheckItem(LIST_TOGGLE_MULTI_SEL,
-            wxT("Toggle multiple selection"), true);
+                              wxT("&Multiple selection\tCtrl-M"));
+    menuList->Check(LIST_TOGGLE_MULTI_SEL, true);
+    menuList->AppendCheckItem(LIST_TOGGLE_HEADER, "Toggle &header\tCtrl-H");
+    menuList->Check(LIST_TOGGLE_HEADER, true);
 
     wxMenu *menuCol = new wxMenu;
     menuCol->Append(LIST_SET_FG_COL, wxT("&Foreground colour..."));
@@ -354,6 +361,13 @@ void MyFrame::OnToggleLines(wxCommandEvent& event)
     m_listCtrl->SetSingleStyle(wxLC_HRULES | wxLC_VRULES, event.IsChecked());
 }
 
+void MyFrame::OnToggleHeader(wxCommandEvent& event)
+{
+    wxLogMessage("%s the header", event.IsChecked() ? "Showing" : "Hiding");
+
+    m_listCtrl->ToggleWindowStyle(wxLC_NO_HEADER);
+}
+
 #ifdef __WXOSX__
 
 void MyFrame::OnToggleMacUseGeneric(wxCommandEvent& event)
@@ -778,7 +792,7 @@ void MyFrame::OnShowColInfo(wxCommandEvent& WXUNUSED(event))
     }
 }
 
-void MyFrame::OnUpdateShowColInfo(wxUpdateUIEvent& event)
+void MyFrame::OnUpdateUIEnableInReport(wxUpdateUIEvent& event)
 {
     event.Enable( (m_listCtrl->GetWindowStyleFlag() & wxLC_REPORT) != 0 );
 }
@@ -799,7 +813,12 @@ void MyFrame::OnToggleMultiSel(wxCommandEvent& WXUNUSED(event))
 
 void MyFrame::OnUpdateToggleMultiSel(wxUpdateUIEvent& event)
 {
-     event.Check((m_listCtrl->GetWindowStyleFlag() & wxLC_SINGLE_SEL) == 0);
+     event.Check(!m_listCtrl->HasFlag(wxLC_SINGLE_SEL));
+}
+
+void MyFrame::OnUpdateToggleHeader(wxUpdateUIEvent& event)
+{
+    event.Check(!m_listCtrl->HasFlag(wxLC_NO_HEADER));
 }
 
 void MyFrame::OnSetFgColour(wxCommandEvent& WXUNUSED(event))

samples/listctrl/listtest.h

@@ -146,13 +146,15 @@ protected:
     void OnFreeze(wxCommandEvent& event);
     void OnThaw(wxCommandEvent& event);
     void OnToggleLines(wxCommandEvent& event);
+    void OnToggleHeader(wxCommandEvent& event);
 #ifdef __WXOSX__
     void OnToggleMacUseGeneric(wxCommandEvent& event);
 #endif // __WXOSX__
     void OnFind(wxCommandEvent& event);
 
-    void OnUpdateShowColInfo(wxUpdateUIEvent& event);
+    void OnUpdateUIEnableInReport(wxUpdateUIEvent& event);
     void OnUpdateToggleMultiSel(wxUpdateUIEvent& event);
+    void OnUpdateToggleHeader(wxUpdateUIEvent& event);
 
     wxImageList *m_imageListNormal;
     wxImageList *m_imageListSmall;
@@ -216,6 +218,7 @@ enum
     LIST_SET_FG_COL,
     LIST_SET_BG_COL,
     LIST_TOGGLE_MULTI_SEL,
+    LIST_TOGGLE_HEADER,
     LIST_TOGGLE_FIRST,
     LIST_SHOW_COL_INFO,
     LIST_SHOW_SEL_INFO,

src/generic/listctrl.cpp

@@ -4446,6 +4446,10 @@ void wxGenericListCtrl::SetSingleStyle( long style, bool add )
 
 void wxGenericListCtrl::SetWindowStyleFlag( long flag )
 {
+    // update the window style first so that the header is created or destroyed
+    // corresponding to the new style
+    wxWindow::SetWindowStyleFlag( flag );
+
     if (m_mainWin)
     {
         // m_mainWin->DeleteEverything();  wxMSW doesn't do that
@@ -4454,8 +4458,6 @@ void wxGenericListCtrl::SetWindowStyleFlag( long flag )
 
         GetSizer()->Layout();
     }
-
-    wxWindow::SetWindowStyleFlag( flag );
 }
 
 bool wxGenericListCtrl::GetColumn(int col, wxListItem &item) const