reduce black background flicker a bit - there is still some left sometimes initially...

[wxWidgets.git] / src / generic / choicbkg.cpp

diff --git a/src/generic/choicbkg.cpp b/src/generic/choicbkg.cpp
index f390ca06e5d8cf692b166ca1233a5822216b3ce7..c40ba14fe4ab45744dad0b232d2c5b948e881e6d 100644 (file)
--- a/src/generic/choicbkg.cpp
+++ b/src/generic/choicbkg.cpp
@@ -64,7 +64,7 @@ const wxEventType wxEVT_COMMAND_CHOICEBOOK_PAGE_CHANGING = wxNewEventType();
 const wxEventType wxEVT_COMMAND_CHOICEBOOK_PAGE_CHANGED = wxNewEventType();
 const int wxID_CHOICEBOOKCHOICE = wxNewId();
 
-BEGIN_EVENT_TABLE(wxChoicebook, wxBookCtrl)
+BEGIN_EVENT_TABLE(wxChoicebook, wxBookCtrlBase)
     EVT_SIZE(wxChoicebook::OnSize)
     EVT_CHOICE(wxID_CHOICEBOOKCHOICE, wxChoicebook::OnChoiceSelected)
 END_EVENT_TABLE()
@@ -144,7 +144,8 @@ wxRect wxChoicebook::GetPageRect() const
 {
     const wxSize sizeChoice = m_choice->GetSize();
 
-    wxRect rectPage(wxPoint(0, 0), GetClientSize());
+    wxPoint pt(0, 0);
+    wxRect rectPage(pt, GetClientSize());
     switch ( GetWindowStyle() & wxCHB_ALIGN_MASK )
     {
         default:
@@ -275,7 +276,7 @@ void wxChoicebook::SetImageList(wxImageList *imageList)
 {
     // TODO: can be implemented in form of static bitmap near choice control
 
-    wxBookCtrl::SetImageList(imageList);
+    wxBookCtrlBase::SetImageList(imageList);
 }
 
 // ----------------------------------------------------------------------------
@@ -309,6 +310,7 @@ int wxChoicebook::SetSelection(size_t n)
             page->SetSize(GetPageRect());
             page->Show();
 
+            // change m_selection now to ignore the selection change event
             m_selection = n;
             m_choice->Select(n);
 
@@ -332,21 +334,33 @@ wxChoicebook::InsertPage(size_t n,
                          bool bSelect,
                          int imageId)
 {
-    if ( !wxBookCtrl::InsertPage(n, page, text, bSelect, imageId) )
+    if ( !wxBookCtrlBase::InsertPage(n, page, text, bSelect, imageId) )
         return false;
 
     m_choice->Insert(text, n);
 
-    // we should always have some selection if possible
-    if ( bSelect || (m_selection == wxNOT_FOUND) )
+    // if the inserted page is before the selected one, we must update the
+    // index of the selected page
+    if ( int(n) <= m_selection )
     {
-        SetSelection(n);
+        // one extra page added
+        m_selection++;
+        m_choice->Select(m_selection);
     }
-    else // don't select this page
-    {
-        // it will be shown only when selected
+
+    // some page should be selected: either this one or the first one if there
+    // is still no selection
+    int selNew = -1;
+    if ( bSelect )
+        selNew = n;
+    else if ( m_selection == -1 )
+        selNew = 0;
+
+    if ( selNew != m_selection )
         page->Hide();
-    }
+
+    if ( selNew != -1 )
+        SetSelection(selNew);
 
     InvalidateBestSize();
     return true;
@@ -355,7 +369,7 @@ wxChoicebook::InsertPage(size_t n,
 wxWindow *wxChoicebook::DoRemovePage(size_t page)
 {
     const int page_count = GetPageCount();
-    wxWindow *win = wxBookCtrl::DoRemovePage(page);
+    wxWindow *win = wxBookCtrlBase::DoRemovePage(page);
 
     if ( win )
     {
@@ -385,7 +399,7 @@ wxWindow *wxChoicebook::DoRemovePage(size_t page)
 bool wxChoicebook::DeleteAllPages()
 {
     m_choice->Clear();
-    return wxBookCtrl::DeleteAllPages();
+    return wxBookCtrlBase::DeleteAllPages();
 }
 
 // ----------------------------------------------------------------------------
@@ -395,7 +409,6 @@ bool wxChoicebook::DeleteAllPages()
 void wxChoicebook::OnChoiceSelected(wxCommandEvent& eventChoice)
 {
     const int selNew = eventChoice.GetSelection();
-    const int selOld = m_selection;
 
     if ( selNew == m_selection )
     {
@@ -405,28 +418,11 @@ void wxChoicebook::OnChoiceSelected(wxCommandEvent& eventChoice)
         return;
     }
 
-    // first send "change in progress" event which may be vetoed by user
-    wxChoicebookEvent eventIng(wxEVT_COMMAND_CHOICEBOOK_PAGE_CHANGING, GetId());
-
-    eventIng.SetEventObject(this);
-    eventIng.SetSelection(selNew);
-    eventIng.SetOldSelection(selOld);
-    if ( GetEventHandler()->ProcessEvent(eventIng) && !eventIng.IsAllowed() )
-    {
-        m_choice->Select(m_selection);
-        return;
-    }
-
-    // change allowed: do change the page and notify the user about it
     SetSelection(selNew);
 
-    wxChoicebookEvent eventEd(wxEVT_COMMAND_CHOICEBOOK_PAGE_CHANGED, GetId());
-
-    eventEd.SetEventObject(this);
-    eventEd.SetSelection(selNew);
-    eventEd.SetOldSelection(selOld);
-
-    (void)GetEventHandler()->ProcessEvent(eventEd);
+    // change wasn't allowed, return to previous state
+    if (m_selection != selNew)
+        m_choice->Select(m_selection);
 }
 
 #endif // wxUSE_CHOICEBOOK