152ec51033
Make sure these headers can be compiled even when the control they're written for is not available in the build. Including them in this case doesn't make much sense, of course, but not giving any errors is still nicer and consistent with the rest of wx headers.
101 lines
3.1 KiB
C++
101 lines
3.1 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: wx/persist/treebook.h
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// Purpose: persistence support for wxBookCtrl
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// Author: Vadim Zeitlin
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// Created: 2009-01-19
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// Copyright: (c) 2009 Vadim Zeitlin <vadim@wxwidgets.org>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_PERSIST_TREEBOOK_H_
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#define _WX_PERSIST_TREEBOOK_H_
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#include "wx/persist/bookctrl.h"
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#if wxUSE_TREEBOOK
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#include "wx/arrstr.h"
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#include "wx/treebook.h"
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// ----------------------------------------------------------------------------
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// string constants used by wxPersistentTreeBookCtrl
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// ----------------------------------------------------------------------------
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#define wxPERSIST_TREEBOOK_KIND wxASCII_STR("TreeBook")
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// this key contains the indices of all expanded nodes in the tree book
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// separated by wxPERSIST_TREEBOOK_EXPANDED_SEP
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#define wxPERSIST_TREEBOOK_EXPANDED_BRANCHES wxASCII_STR("Expanded")
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#define wxPERSIST_TREEBOOK_EXPANDED_SEP ','
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// ----------------------------------------------------------------------------
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// wxPersistentTreeBookCtrl: supports saving/restoring open tree branches
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// ----------------------------------------------------------------------------
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class wxPersistentTreeBookCtrl : public wxPersistentBookCtrl
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{
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public:
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wxPersistentTreeBookCtrl(wxTreebook *book)
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: wxPersistentBookCtrl(book)
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{
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}
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virtual void Save() const wxOVERRIDE
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{
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const wxTreebook * const book = GetTreeBook();
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wxString expanded;
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const size_t count = book->GetPageCount();
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for ( size_t n = 0; n < count; n++ )
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{
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if ( book->IsNodeExpanded(n) )
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{
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if ( !expanded.empty() )
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expanded += wxPERSIST_TREEBOOK_EXPANDED_SEP;
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expanded += wxString::Format(wxASCII_STR("%u"), static_cast<unsigned>(n));
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}
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}
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SaveValue(wxPERSIST_TREEBOOK_EXPANDED_BRANCHES, expanded);
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wxPersistentBookCtrl::Save();
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}
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virtual bool Restore() wxOVERRIDE
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{
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wxTreebook * const book = GetTreeBook();
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wxString expanded;
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if ( RestoreValue(wxPERSIST_TREEBOOK_EXPANDED_BRANCHES, &expanded) )
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{
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const wxArrayString
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indices(wxSplit(expanded, wxPERSIST_TREEBOOK_EXPANDED_SEP));
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const size_t pageCount = book->GetPageCount();
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const size_t count = indices.size();
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for ( size_t n = 0; n < count; n++ )
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{
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unsigned long idx;
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if ( indices[n].ToULong(&idx) && idx < pageCount )
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book->ExpandNode(idx);
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}
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}
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return wxPersistentBookCtrl::Restore();
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}
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virtual wxString GetKind() const wxOVERRIDE { return wxPERSIST_TREEBOOK_KIND; }
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wxTreebook *GetTreeBook() const { return static_cast<wxTreebook *>(Get()); }
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};
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inline wxPersistentObject *wxCreatePersistentObject(wxTreebook *book)
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{
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return new wxPersistentTreeBookCtrl(book);
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}
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#endif // wxUSE_TREEBOOK
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#endif // _WX_PERSIST_TREEBOOK_H_
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