Restored the ability to scroll.

[wxWidgets.git] / src / msw / notebook.cpp

diff --git a/src/msw/notebook.cpp b/src/msw/notebook.cpp
index d6c5fc5234928a1857e22c93b29aa1ab0cb03071..8c8e75e196ae92473ab58682f906ad34a94f0856 100644 (file)
--- a/src/msw/notebook.cpp
+++ b/src/msw/notebook.cpp
@@ -42,11 +42,13 @@
 
 #ifndef __TWIN32__
 #ifdef __GNUWIN32__
+#ifndef wxUSE_NORLANDER_HEADERS
   #include "wx/msw/gnuwin32/extra.h"
 #endif
 #endif
+#endif
 
-#if !defined(__GNUWIN32__) || defined(__TWIN32__)
+#if !defined(__GNUWIN32__) || defined(__TWIN32__) || defined(wxUSE_NORLANDER_HEADERS)
   #include <commctrl.h>
 #endif
 
@@ -122,7 +124,8 @@ bool wxNotebook::Create(wxWindow *parent,
                         const wxString& name)
 {
   // base init
-  CreateBase(parent, id, pos, size, style, name);
+  if ( !CreateBase(parent, id, pos, size, style, wxDefaultValidator, name) )
+      return FALSE;
 
   // colors and font
   m_backgroundColour = wxColour(GetSysColor(COLOR_BTNFACE));
@@ -274,11 +277,22 @@ bool wxNotebook::DeletePage(int nPage)
 {
   wxCHECK_MSG( IS_VALID_PAGE(nPage), FALSE, _T("notebook page out of range") );
 
+  if ( m_nSelection == nPage ) {
+      // advance selection backwards - the page being deleted shouldn't be left
+      // selected
+      AdvanceSelection(FALSE);
+  }
+
   TabCtrl_DeleteItem(m_hwnd, nPage);
 
   delete m_aPages[nPage];
   m_aPages.Remove(nPage);
 
+  if ( m_aPages.IsEmpty() ) {
+      // no selection if the notebook became empty
+      m_nSelection = -1;
+  }
+
   return TRUE;
 }
 
@@ -328,41 +342,41 @@ bool wxNotebook::InsertPage(int nPage,
   wxASSERT( pPage != NULL );
   wxCHECK( IS_VALID_PAGE(nPage) || nPage == GetPageCount(), FALSE );
 
-  // add the tab to the control
+  // do add the tab to the control
+
+  // init all fields to 0
   TC_ITEM tcItem;
-  tcItem.mask    = 0;
+  memset(&tcItem, 0, sizeof(tcItem));
 
-  if (imageId != -1)
+  if ( imageId != -1 )
   {
     tcItem.mask |= TCIF_IMAGE;
     tcItem.iImage  = imageId;
   }
-  else
-    tcItem.iImage  = 0;
 
-  if (!strText.IsEmpty())
+  if ( !strText.IsEmpty() )
   {
-    tcItem.mask    |= TCIF_TEXT;
-    tcItem.pszText = (wxChar *)strText.c_str();
+    tcItem.mask |= TCIF_TEXT;
+    tcItem.pszText = (wxChar *)strText.c_str(); // const_cast
   }
-  else
-    tcItem.pszText = (wxChar *) NULL;
 
   if ( TabCtrl_InsertItem(m_hwnd, nPage, &tcItem) == -1 ) {
     wxLogError(_T("Can't create the notebook page '%s'."), strText.c_str());
+
     return FALSE;
   }
 
+  // if the inserted page is before the selected one, we must update the
+  // index of the selected page
+  if ( nPage <= m_nSelection )
+  {
+    // one extra page added
+    m_nSelection++;
+  }
+
   // save the pointer to the page
   m_aPages.Insert(pPage, nPage);
 
-  // some page must be selected: either this one or the first one if there is
-  // still no selection
-  if ( bSelect )
-    m_nSelection = nPage;
-  else if ( m_nSelection == -1 )
-    m_nSelection = 0;
-
   // don't show pages by default (we'll need to adjust their size first)
   HWND hwnd = GetWinHwnd(pPage);
   SetWindowLong(hwnd, GWL_STYLE, GetWindowLong(hwnd, GWL_STYLE) & ~WS_VISIBLE);
@@ -370,6 +384,17 @@ bool wxNotebook::InsertPage(int nPage,
   // this updates internal flag too - otherwise it will get out of sync
   pPage->Show(FALSE);
 
+  // some page should be selected: either this one or the first one if there is
+  // still no selection
+  int selNew = -1;
+  if ( bSelect )
+    selNew = nPage;
+  else if ( m_nSelection == -1 )
+    selNew = 0;
+
+  if ( selNew != -1 )
+    SetSelection(selNew);
+
   return TRUE;
 }
 
@@ -379,14 +404,6 @@ bool wxNotebook::InsertPage(int nPage,
 
 void wxNotebook::OnSize(wxSizeEvent& event)
 {
-  // make sure the current page is shown and has focus (it's useful because all
-  // pages are created invisible initially)
-  if ( m_nSelection != -1 ) {
-    wxNotebookPage *pPage = m_aPages[m_nSelection];
-    pPage->Show(TRUE);
-    pPage->SetFocus();
-  }
-
   // fit the notebook page to the tab control's display area
   RECT rc;
   rc.left = rc.top = 0;
@@ -408,7 +425,21 @@ void wxNotebook::OnSelChange(wxNotebookEvent& event)
 {
   // is it our tab control?
   if ( event.GetEventObject() == this )
-    ChangePage(event.GetOldSelection(), event.GetSelection());
+  {
+      int sel = event.GetOldSelection();
+      if ( sel != -1 )
+        m_aPages[sel]->Show(FALSE);
+      
+      sel = event.GetSelection();
+      if ( sel != -1 )
+      {
+        wxNotebookPage *pPage = m_aPages[sel];
+        pPage->Show(TRUE);
+        pPage->SetFocus();
+      }
+      
+      m_nSelection = sel;
+  }
 
   // we want to give others a chance to process this message as well
   event.Skip();
@@ -487,7 +518,8 @@ bool wxNotebook::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM* result)
 // wxNotebook helper functions
 // ----------------------------------------------------------------------------
 
-// hide the currently active panel and show the new one
+// generate the page changing and changed events, hide the currently active
+// panel and show the new one
 void wxNotebook::ChangePage(int nOldSel, int nSel)
 {
   // MT-FIXME should use a real semaphore
@@ -516,16 +548,8 @@ void wxNotebook::ChangePage(int nOldSel, int nSel)
     return;
   }
 
-  if ( nOldSel != -1 )
-    m_aPages[nOldSel]->Show(FALSE);
-
-  wxNotebookPage *pPage = m_aPages[nSel];
-  pPage->Show(TRUE);
-  pPage->SetFocus();
-
   event.SetEventType(wxEVT_COMMAND_NOTEBOOK_PAGE_CHANGED);
   ProcessEvent(event);
 
-  m_nSelection = nSel;
   s_bInsideChangePage = FALSE;
 }