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

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

diff --git a/src/generic/listbkg.cpp b/src/generic/listbkg.cpp
index f0d53056976b41066f4b9a08bc1860336f91c414..517227b3a5bc4011affb008fa9a1dcd5ea09411d 100644 (file)
--- a/src/generic/listbkg.cpp
+++ b/src/generic/listbkg.cpp
@@ -48,6 +48,13 @@ const wxCoord MARGIN = 5;
 // various wxWidgets macros
 // ----------------------------------------------------------------------------
 
 // various wxWidgets macros
 // ----------------------------------------------------------------------------
 

+// check that the page index is valid
+#define IS_VALID_PAGE(nPage) ((nPage) < GetPageCount())
+
+// ----------------------------------------------------------------------------
+// event table
+// ----------------------------------------------------------------------------
+

 IMPLEMENT_DYNAMIC_CLASS(wxListbook, wxControl)
 IMPLEMENT_DYNAMIC_CLASS(wxListbookEvent, wxNotifyEvent)
 
 IMPLEMENT_DYNAMIC_CLASS(wxListbook, wxControl)
 IMPLEMENT_DYNAMIC_CLASS(wxListbookEvent, wxNotifyEvent)
 


@@ -55,7 +62,7 @@ const wxEventType wxEVT_COMMAND_LISTBOOK_PAGE_CHANGING = wxNewEventType();
 const wxEventType wxEVT_COMMAND_LISTBOOK_PAGE_CHANGED = wxNewEventType();
 const int wxID_LISTBOOKLISTVIEW = wxNewId();
 
 const wxEventType wxEVT_COMMAND_LISTBOOK_PAGE_CHANGED = wxNewEventType();
 const int wxID_LISTBOOKLISTVIEW = wxNewId();
 

-BEGIN_EVENT_TABLE(wxListbook, wxBookCtrl)
+BEGIN_EVENT_TABLE(wxListbook, wxBookCtrlBase)

     EVT_SIZE(wxListbook::OnSize)
     EVT_LIST_ITEM_SELECTED(wxID_LISTBOOKLISTVIEW, wxListbook::OnListSelected)
 END_EVENT_TABLE()
     EVT_SIZE(wxListbook::OnSize)
     EVT_LIST_ITEM_SELECTED(wxID_LISTBOOKLISTVIEW, wxListbook::OnListSelected)
 END_EVENT_TABLE()


@@ -165,7 +172,8 @@ wxRect wxListbook::GetPageRect() const
 {
     const wxSize sizeList = m_list->GetSize();
 
 {
     const wxSize sizeList = m_list->GetSize();
 

-    wxRect rectPage(wxPoint(0, 0), GetClientSize());
+    wxPoint pt(0, 0);
+    wxRect rectPage(pt, GetClientSize());

     switch ( GetWindowStyle() & wxLB_ALIGN_MASK )
     {
         default:
     switch ( GetWindowStyle() & wxLB_ALIGN_MASK )
     {
         default:


@@ -233,7 +241,7 @@ void wxListbook::OnSize(wxSizeEvent& event)
 #if wxUSE_LINE_IN_LISTBOOK
     if ( m_line )
     {
 #if wxUSE_LINE_IN_LISTBOOK
     if ( m_line )
     {

-        wxRect rectLine(wxPoint(0, 0), sizeClient);
+        wxRect rectLine(sizeClient);

 
         switch ( GetWindowStyle() & wxLB_ALIGN_MASK )
         {
 
         switch ( GetWindowStyle() & wxLB_ALIGN_MASK )
         {


@@ -262,23 +270,13 @@ void wxListbook::OnSize(wxSizeEvent& event)
     }
 #endif // wxUSE_LINE_IN_LISTBOOK
 
     }
 #endif // wxUSE_LINE_IN_LISTBOOK
 

-    // we should always have some selection if possible
-    if ( m_selection == wxNOT_FOUND && GetPageCount() )
-    {
-        SetSelection(0);
-    }
-
-    if ( m_selection != wxNOT_FOUND )
+    // resize the currently shown page
+    if (m_selection != wxNOT_FOUND )

     {
         wxWindow *page = m_pages[m_selection];
         wxCHECK_RET( page, _T("NULL page in wxListbook?") );
     {
         wxWindow *page = m_pages[m_selection];
         wxCHECK_RET( page, _T("NULL page in wxListbook?") );

-

         page->SetSize(GetPageRect());
         page->SetSize(GetPageRect());

-        if ( !page->IsShown() )
-        {
-            page->Show();

         }
         }

-    }

 }
 
 wxSize wxListbook::CalcSizeFromPage(const wxSize& sizePage) const
 }
 
 wxSize wxListbook::CalcSizeFromPage(const wxSize& sizePage) const


@@ -325,7 +323,7 @@ int wxListbook::GetPageImage(size_t WXUNUSED(n)) const
 
 bool wxListbook::SetPageImage(size_t n, int imageId)
 {
 
 bool wxListbook::SetPageImage(size_t n, int imageId)
 {

-    return m_list->SetItemImage(n, imageId, imageId);
+    return m_list->SetItemImage(n, imageId);

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------


@@ -336,7 +334,7 @@ void wxListbook::SetImageList(wxImageList *imageList)
 {
     m_list->SetImageList(imageList, wxIMAGE_LIST_NORMAL);
 
 {
     m_list->SetImageList(imageList, wxIMAGE_LIST_NORMAL);
 

-    wxBookCtrl::SetImageList(imageList);
+    wxBookCtrlBase::SetImageList(imageList);

 }
 
 // ----------------------------------------------------------------------------
 }
 
 // ----------------------------------------------------------------------------


@@ -350,25 +348,40 @@ int wxListbook::GetSelection() const
 
 int wxListbook::SetSelection(size_t n)
 {
 
 int wxListbook::SetSelection(size_t n)
 {

-    wxCHECK_MSG( n < GetPageCount(), wxNOT_FOUND,
-                 _T("invalid page index in wxListbook::SetSelection()") );
+    wxCHECK_MSG( IS_VALID_PAGE(n), wxNOT_FOUND,
+                 wxT("invalid page index in wxListbook::SetSelection()") );

 
 

-    int selOld = m_selection;
+    const int oldSel = m_selection;

 
 

-    if ( (int)n != m_selection )
+    if ( int(n) != m_selection )

     {
     {

-        m_list->Select(n);
-        m_list->Focus(n);
+        wxListbookEvent event(wxEVT_COMMAND_LISTBOOK_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;
+            m_list->Select(n);
+            m_list->Focus(n);

 
 

-        // change m_selection only now, otherwise OnListSelected() would ignore
-        // the selection change event
-        m_selection = n;
+            // program allows the page change
+            event.SetEventType(wxEVT_COMMAND_LISTBOOK_PAGE_CHANGED);
+            (void)GetEventHandler()->ProcessEvent(event);
+        }

     }
 
     }
 

-    return selOld;
+    return oldSel;

 }
 
 }
 

-

 // ----------------------------------------------------------------------------
 // adding/removing the pages
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // adding/removing the pages
 // ----------------------------------------------------------------------------


@@ -380,36 +393,75 @@ wxListbook::InsertPage(size_t n,
                        bool bSelect,
                        int imageId)
 {
                        bool bSelect,
                        int imageId)
 {

-    if ( !wxBookCtrl::InsertPage(n, page, text, bSelect, imageId) )
+    if ( !wxBookCtrlBase::InsertPage(n, page, text, bSelect, imageId) )

         return false;
 
     m_list->InsertItem(n, text, imageId);
 
         return false;
 
     m_list->InsertItem(n, text, imageId);
 

-    if ( bSelect )
+    // if the inserted page is before the selected one, we must update the
+    // index of the selected page
+    if ( int(n) <= m_selection )

     {
     {

-        m_list->Select(n);
-        m_list->Focus(n);
+        // one extra page added
+        m_selection++;
+        m_list->Select(m_selection);
+        m_list->Focus(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();
         page->Hide();

-    }

 
 

+    if ( selNew != -1 )
+        SetSelection(selNew);
+
+    InvalidateBestSize();

     return true;
 }
 
 wxWindow *wxListbook::DoRemovePage(size_t page)
 {
     return true;
 }
 
 wxWindow *wxListbook::DoRemovePage(size_t page)
 {

-    wxWindow *win = wxBookCtrl::DoRemovePage(page);
+    const int page_count = GetPageCount();
+    wxWindow *win = wxBookCtrlBase::DoRemovePage(page);
+

     if ( win )
     {
         m_list->DeleteItem(page);
     if ( win )
     {
         m_list->DeleteItem(page);

+
+        if (m_selection >= (int)page)
+        {
+            // force new sel valid if possible
+            int sel = m_selection - 1;
+            if (page_count == 1)
+                sel = wxNOT_FOUND;
+            else if ((page_count == 2) || (sel == -1))
+                sel = 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 ((sel != wxNOT_FOUND) && (sel != m_selection))
+                SetSelection(sel);
+        }

     }
 
     return win;
 }
 
     }
 
     return win;
 }
 

+
+bool wxListbook::DeleteAllPages()
+{
+    m_list->DeleteAllItems();
+    return wxBookCtrlBase::DeleteAllPages();
+}
+

 // ----------------------------------------------------------------------------
 // wxListbook events
 // ----------------------------------------------------------------------------
 // ----------------------------------------------------------------------------
 // wxListbook events
 // ----------------------------------------------------------------------------


@@ -426,32 +478,14 @@ void wxListbook::OnListSelected(wxListEvent& eventList)
         return;
     }
 
         return;
     }
 

-    // first send "change in progress" event which may be vetoed by user
-    wxListbookEvent eventIng(wxEVT_COMMAND_LISTBOOK_PAGE_CHANGING, GetId());
+    SetSelection(selNew);

 
 

-    eventIng.SetEventObject(this);
-    eventIng.SetSelection(selNew);
-    eventIng.SetOldSelection(m_selection);
-    if ( GetEventHandler()->ProcessEvent(eventIng) && !eventIng.IsAllowed() )
+    // change wasn't allowed, return to previous state
+    if (m_selection != selNew)

     {
         m_list->Select(m_selection);
     {
         m_list->Select(m_selection);

-        return;
+        m_list->Focus(m_selection);

     }
     }

-
-    // change allowed: do change the page and notify the user about it
-    if ( m_selection != wxNOT_FOUND )
-        m_pages[m_selection]->Hide();
-    wxWindow *page = m_pages[m_selection = selNew];
-    page->SetSize(GetPageRect());
-    page->Show();
-
-    wxListbookEvent eventEd(wxEVT_COMMAND_LISTBOOK_PAGE_CHANGED, GetId());
-
-    eventEd.SetEventObject(this);
-    eventEd.SetSelection(selNew);
-    eventEd.SetOldSelection(m_selection);
-
-    (void)GetEventHandler()->ProcessEvent(eventEd);

 }
 
 #endif // wxUSE_LISTBOOK
 }
 
 #endif // wxUSE_LISTBOOK