projects / wxWidgets.git / blame
| Commit | Line | Data |
|---|---|---|
| 0fa541e8 VZ |
1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: wx/persist/treebook.h | |
| 3 | // Purpose: persistence support for wxBookCtrl | |
| 4 | // Author: Vadim Zeitlin | |
| 5 | // Created: 2009-01-19 | |
| 0fa541e8 VZ |
6 | // Copyright: (c) 2009 Vadim Zeitlin <vadim@wxwidgets.org> |
| 7 | // Licence: wxWindows licence | |
| 8 | /////////////////////////////////////////////////////////////////////////////// | |
| 9 | ||
| 10 | #ifndef _WX_PERSIST_TREEBOOK_H_ | |
| 11 | #define _WX_PERSIST_TREEBOOK_H_ | |
| 12 | ||
| 13 | #include "wx/persist/bookctrl.h" | |
| 14 | ||
| 15 | #include "wx/arrstr.h" | |
| 16 | #include "wx/treebook.h" | |
| 17 | ||
| 18 | // ---------------------------------------------------------------------------- | |
| 19 | // string constants used by wxPersistentTreeBookCtrl | |
| 20 | // ---------------------------------------------------------------------------- | |
| 21 | ||
| 22 | #define wxPERSIST_TREEBOOK_KIND "TreeBook" | |
| 23 | ||
| 24 | // this key contains the indices of all expanded nodes in the tree book | |
| 25 | // separated by wxPERSIST_TREEBOOK_EXPANDED_SEP | |
| 26 | #define wxPERSIST_TREEBOOK_EXPANDED_BRANCHES "Expanded" | |
| 27 | #define wxPERSIST_TREEBOOK_EXPANDED_SEP ',' | |
| 28 | ||
| 29 | // ---------------------------------------------------------------------------- | |
| 30 | // wxPersistentTreeBookCtrl: supports saving/restoring open tree branches | |
| 31 | // ---------------------------------------------------------------------------- | |
| 32 | ||
| 33 | class wxPersistentTreeBookCtrl : public wxPersistentBookCtrl | |
| 34 | { | |
| 35 | public: | |
| 36 | wxPersistentTreeBookCtrl(wxTreebook *book) | |
| 37 | : wxPersistentBookCtrl(book) | |
| 38 | { | |
| 39 | } | |
| 40 | ||
| 41 | virtual void Save() const | |
| 42 | { | |
| 43 | const wxTreebook * const book = GetTreeBook(); | |
| 44 | ||
| 45 | wxString expanded; | |
| 46 | const size_t count = book->GetPageCount(); | |
| 47 | for ( size_t n = 0; n < count; n++ ) | |
| 48 | { | |
| 49 | if ( book->IsNodeExpanded(n) ) | |
| 50 | { | |
| 51 | if ( !expanded.empty() ) | |
| 52 | expanded += wxPERSIST_TREEBOOK_EXPANDED_SEP; | |
| 53 | ||
| 54 | expanded += wxString::Format("%u", static_cast<unsigned>(n)); | |
| 55 | } | |
| 56 | } | |
| 57 | ||
| 58 | SaveValue(wxPERSIST_TREEBOOK_EXPANDED_BRANCHES, expanded); | |
| 59 | ||
| 60 | wxPersistentBookCtrl::Save(); | |
| 61 | } | |
| 62 | ||
| 63 | virtual bool Restore() | |
| 64 | { | |
| 65 | wxTreebook * const book = GetTreeBook(); | |
| 66 | ||
| 67 | wxString expanded; | |
| 68 | if ( RestoreValue(wxPERSIST_TREEBOOK_EXPANDED_BRANCHES, &expanded) ) | |
| 69 | { | |
| 70 | const wxArrayString | |
| 71 | indices(wxSplit(expanded, wxPERSIST_TREEBOOK_EXPANDED_SEP)); | |
| 72 | ||
| 73 | const size_t pageCount = book->GetPageCount(); | |
| 74 | const size_t count = indices.size(); | |
| 75 | for ( size_t n = 0; n < count; n++ ) | |
| 76 | { | |
| 77 | unsigned long idx; | |
| 78 | if ( indices[n].ToULong(&idx) && idx < pageCount ) | |
| 79 | book->ExpandNode(idx); | |
| 80 | } | |
| 81 | } | |
| 82 | ||
| 83 | return wxPersistentBookCtrl::Restore(); | |
| 84 | } | |
| 85 | ||
| 86 | virtual wxString GetKind() const { return wxPERSIST_TREEBOOK_KIND; } | |
| 87 | ||
| 88 | wxTreebook *GetTreeBook() const { return static_cast<wxTreebook *>(Get()); } | |
| 89 | }; | |
| 90 | ||
| 91 | inline wxPersistentObject *wxCreatePersistentObject(wxTreebook *book) | |
| 92 | { | |
| 93 | return new wxPersistentTreeBookCtrl(book); | |
| 94 | } | |
| 95 | ||
| 96 | #endif // _WX_PERSIST_TREEBOOK_H_ |