fix crash which happened if you called SetAttr(NULL) followed by SetAttr(attr) (...

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

diff --git a/src/generic/choicbkg.cpp b/src/generic/choicbkg.cpp
index 163998a42173de2ceb631a858cf5d7918e2c6fea..ccc51e049dc7eef7a7f5000fab24275d63b09301 100644 (file)
--- a/src/generic/choicbkg.cpp
+++ b/src/generic/choicbkg.cpp
@@ -26,10 +26,15 @@
 
 #if wxUSE_CHOICEBOOK
 
-#include "wx/choice.h"
 #include "wx/choicebk.h"
+
+#ifndef WX_PRECOMP
+    #include "wx/settings.h"
+    #include "wx/choice.h"
+    #include "wx/sizer.h"
+#endif
+
 #include "wx/imaglist.h"
-#include "wx/settings.h"
 
 // ----------------------------------------------------------------------------
 // various wxWidgets macros
@@ -47,10 +52,9 @@ IMPLEMENT_DYNAMIC_CLASS(wxChoicebookEvent, wxNotifyEvent)
 
 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, wxBookCtrlBase)
-    EVT_CHOICE(wxID_CHOICEBOOKCHOICE, wxChoicebook::OnChoiceSelected)
+    EVT_CHOICE(wxID_ANY, wxChoicebook::OnChoiceSelected)
 END_EVENT_TABLE()
 
 // ============================================================================
@@ -91,19 +95,19 @@ wxChoicebook::Create(wxWindow *parent,
     m_bookctrl = new wxChoice
                  (
                     this,
-                    wxID_CHOICEBOOKCHOICE,
+                    wxID_ANY,
                     wxDefaultPosition,
                     wxDefaultSize
                  );
 
     wxSizer* mainSizer = new wxBoxSizer(IsVertical() ? wxVERTICAL : wxHORIZONTAL);
-                 
-    if (style & wxCHB_RIGHT || style & wxCHB_BOTTOM)
+
+    if (style & wxBK_RIGHT || style & wxBK_BOTTOM)
         mainSizer->Add(0, 0, 1, wxEXPAND, 0);
-    
+
     m_controlSizer = new wxBoxSizer(IsVertical() ? wxHORIZONTAL : wxVERTICAL);
     m_controlSizer->Add(m_bookctrl, 1, (IsVertical() ? wxALIGN_CENTRE_VERTICAL : wxALIGN_CENTRE) |wxGROW, 0);
-    mainSizer->Add(m_controlSizer, 0, wxGROW|wxALL, m_controlMargin);
+    mainSizer->Add(m_controlSizer, 0, (IsVertical() ? (int) wxGROW : (int) wxALIGN_CENTRE_VERTICAL)|wxALL, m_controlMargin);
     SetSizer(mainSizer);
     return true;
 }
@@ -115,7 +119,6 @@ wxChoicebook::Create(wxWindow *parent,
 wxSize wxChoicebook::GetControllerSize() const
 {
     const wxSize sizeClient = GetClientSize(),
-                 // sizeChoice = m_bookctrl->GetBestFittingSize();
                  sizeChoice = m_controlSizer->CalcMin();
 
     wxSize size;
@@ -202,39 +205,14 @@ int wxChoicebook::GetSelection() const
     return m_selection;
 }
 
-int wxChoicebook::SetSelection(size_t n)
+wxBookCtrlBaseEvent* wxChoicebook::CreatePageChangingEvent() const
 {
-    wxCHECK_MSG( IS_VALID_PAGE(n), wxNOT_FOUND,
-                 wxT("invalid page index in wxChoicebook::SetSelection()") );
-
-    const int oldSel = m_selection;
-
-    if ( int(n) != m_selection )
-    {
-        wxChoicebookEvent event(wxEVT_COMMAND_CHOICEBOOK_PAGE_CHANGING, m_windowId);
-        event.SetSelection(n);
-        event.SetOldSelection(m_selection);
-        event.SetEventObject(this);
-        if ( !GetEventHandler()->ProcessEvent(event) || event.IsAllowed() )
-        {
-            if ( m_selection != wxNOT_FOUND )
-                m_pages[m_selection]->Hide();
-
-            wxWindow *page = m_pages[n];
-            page->SetSize(GetPageRect());
-            page->Show();
-
-            // change m_selection now to ignore the selection change event
-            m_selection = n;
-            GetChoiceCtrl()->Select(n);
-
-            // program allows the page change
-            event.SetEventType(wxEVT_COMMAND_CHOICEBOOK_PAGE_CHANGED);
-            (void)GetEventHandler()->ProcessEvent(event);
-        }
-    }
+    return new wxChoicebookEvent(wxEVT_COMMAND_CHOICEBOOK_PAGE_CHANGING, m_windowId);
+}
 
-    return oldSel;
+void wxChoicebook::MakeChangedEvent(wxBookCtrlBaseEvent &event)
+{
+    event.SetEventType(wxEVT_COMMAND_CHOICEBOOK_PAGE_CHANGED);
 }
 
 // ----------------------------------------------------------------------------
@@ -276,34 +254,33 @@ wxChoicebook::InsertPage(size_t n,
     if ( selNew != wxNOT_FOUND )
         SetSelection(selNew);
 
-    InvalidateBestSize();
     return true;
 }
 
 wxWindow *wxChoicebook::DoRemovePage(size_t page)
 {
-    const size_t page_count = GetPageCount();
     wxWindow *win = wxBookCtrlBase::DoRemovePage(page);
 
     if ( win )
     {
         GetChoiceCtrl()->Delete(page);
 
-        if (m_selection >= (int)page)
+        if ( m_selection >= (int)page )
         {
-            // force new sel valid if possible
-            int sel = m_selection - 1;
-            if (page_count == 1)
+            // ensure that the selection is valid
+            int sel;
+            if ( GetPageCount() == 0 )
                 sel = wxNOT_FOUND;
-            else if ((page_count == 2) || (sel == -1))
-                sel = 0;
+            else
+                sel = m_selection ? m_selection - 1 : 0;
 
-            // force sel invalid if deleting current page - don't try to hide it
-            m_selection = (m_selection == (int)page) ? wxNOT_FOUND : m_selection - 1;
+            // if deleting current page we shouldn't try to hide it
+            m_selection = m_selection == (int)page ? wxNOT_FOUND
+                                                   : m_selection - 1;
 
-            if ((sel != wxNOT_FOUND) && (sel != m_selection))
+            if ( sel != wxNOT_FOUND && sel != m_selection )
                 SetSelection(sel);
-           }
+        }
     }
 
     return win;
@@ -312,6 +289,7 @@ wxWindow *wxChoicebook::DoRemovePage(size_t page)
 
 bool wxChoicebook::DeleteAllPages()
 {
+    m_selection = wxNOT_FOUND;
     GetChoiceCtrl()->Clear();
     return wxBookCtrlBase::DeleteAllPages();
 }
@@ -322,6 +300,12 @@ bool wxChoicebook::DeleteAllPages()
 
 void wxChoicebook::OnChoiceSelected(wxCommandEvent& eventChoice)
 {
+    if ( eventChoice.GetEventObject() != m_bookctrl )
+    {
+        eventChoice.Skip();
+        return;
+    }
+
     const int selNew = eventChoice.GetSelection();
 
     if ( selNew == m_selection )