Add persistence support for wxSplitterWindow.

New wxPersistentSplitter class allows to easily save and restore the splitter
position in config.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@69001 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

Makefile.in

@@ -4030,6 +4030,7 @@ COND_USE_GUI_1_ALL_GUI_HEADERS =  \
 	wx/paper.h \
 	wx/persist.h \
 	wx/persist/bookctrl.h \
+	wx/persist/splitter.h \
 	wx/persist/toplevel.h \
 	wx/persist/treebook.h \
 	wx/persist/window.h \

build/bakefiles/files.bkl

@@ -998,6 +998,7 @@ IMPORTANT: please read docs/tech/tn0016.txt before modifying this file!
     wx/paper.h
     wx/persist.h
     wx/persist/bookctrl.h
+    wx/persist/splitter.h
     wx/persist/toplevel.h
     wx/persist/treebook.h
     wx/persist/window.h

build/msw/wx_core.dsp

@@ -6808,6 +6808,10 @@ SOURCE=..\..\include\wx\splash.h
 # End Source File
 # Begin Source File
 
+SOURCE=..\..\include\wx\persist\splitter.h
+# End Source File
+# Begin Source File
+
 SOURCE=..\..\include\wx\splitter.h
 # End Source File
 # Begin Source File

build/msw/wx_vc7_core.vcproj

@@ -5681,6 +5681,9 @@
 			<File
 				RelativePath="..\..\include\wx\splash.h">
 			</File>
+			<File
+				RelativePath="..\..\include\wx\persist\splitter.h">
+			</File>
 			<File
 				RelativePath="..\..\include\wx\splitter.h">
 			</File>

build/msw/wx_vc8_core.vcproj

@@ -7595,6 +7595,10 @@
 				RelativePath="..\..\include\wx\splash.h"
 				>
 			</File>
+			<File
+				RelativePath="..\..\include\wx\persist\splitter.h"
+				>
+			</File>
 			<File
 				RelativePath="..\..\include\wx\splitter.h"
 				>

build/msw/wx_vc9_core.vcproj

@@ -7591,6 +7591,10 @@
 				RelativePath="..\..\include\wx\splash.h"
 				>
 			</File>
+			<File
+				RelativePath="..\..\include\wx\persist\splitter.h"
+				>
+			</File>
 			<File
 				RelativePath="..\..\include\wx\splitter.h"
 				>

docs/changes.txt

@@ -467,6 +467,7 @@ All (GUI):
 - Added wxDataViewCtrl::GetSelectedItemsCount() and HasSelection().
 - Added wxFLP_SMALL and wxDIRP_SMALL styles.
 - Added support for saving alpha with TIFF images.
+- Added wxPersistentSplitter.
 
 OSX:
 

include/wx/persist/splitter.h

@@ -0,0 +1,69 @@
+///////////////////////////////////////////////////////////////////////////////
+// Name:        wx/persist/splitter.h
+// Purpose:     Persistence support for wxSplitterWindow.
+// Author:      Vadim Zeitlin
+// Created:     2011-08-31
+// RCS-ID:      $Id: wxhead.h,v 1.12 2010-04-22 12:44:51 zeitlin Exp $
+// Copyright:   (c) 2011 Vadim Zeitlin <vadim@wxwidgets.org>
+// Licence:     wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_PERSIST_SPLITTER_H_
+#define _WX_PERSIST_SPLITTER_H_
+
+#include "wx/persist/window.h"
+
+#include "wx/splitter.h"
+
+// ----------------------------------------------------------------------------
+// string constants used by wxPersistentSplitter
+// ----------------------------------------------------------------------------
+
+#define wxPERSIST_SPLITTER_KIND "Splitter"
+
+// Special position value of -1 means the splitter is not split at all.
+#define wxPERSIST_SPLITTER_POSITION "Position"
+
+// ----------------------------------------------------------------------------
+// wxPersistentSplitter: supports saving/restoring splitter position
+// ----------------------------------------------------------------------------
+
+class wxPersistentSplitter : public wxPersistentWindow<wxSplitterWindow>
+{
+public:
+    wxPersistentSplitter(wxSplitterWindow* splitter)
+        : wxPersistentWindow<wxSplitterWindow>(splitter)
+    {
+    }
+
+    virtual void Save() const
+    {
+        wxSplitterWindow* const splitter = Get();
+
+        int pos = splitter->IsSplit() ? splitter->GetSashPosition() : -1;
+        SaveValue(wxPERSIST_SPLITTER_POSITION, pos);
+    }
+
+    virtual bool Restore()
+    {
+        int pos;
+        if ( RestoreValue(wxPERSIST_SPLITTER_POSITION, &pos) )
+        {
+            if ( pos == -1 )
+                Get()->Unsplit();
+            else
+                Get()->SetSashPosition(pos);
+        }
+
+        return false;
+    }
+
+    virtual wxString GetKind() const { return wxPERSIST_SPLITTER_KIND; }
+};
+
+inline wxPersistentObject *wxCreatePersistentObject(wxSplitterWindow* splitter)
+{
+    return new wxPersistentSplitter(splitter);
+}
+
+#endif // _WX_PERSIST_SPLITTER_H_