f24b3d5483
Use this position when the window is split again and also save and restore it from persistent storage in wxPersistentSplitter. Closes #24329.
87 lines
3 KiB
C++
87 lines
3 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: wx/persist/splitter.h
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// Purpose: Persistence support for wxSplitterWindow.
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// Author: Vadim Zeitlin
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// Created: 2011-08-31
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// Copyright: (c) 2011 Vadim Zeitlin <vadim@wxwidgets.org>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_PERSIST_SPLITTER_H_
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#define _WX_PERSIST_SPLITTER_H_
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#include "wx/persist/window.h"
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#include "wx/splitter.h"
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// ----------------------------------------------------------------------------
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// string constants used by wxPersistentSplitter
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// ----------------------------------------------------------------------------
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#define wxPERSIST_SPLITTER_KIND wxASCII_STR("Splitter")
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// Special position value of -1 means the splitter is not split at all.
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#define wxPERSIST_SPLITTER_POSITION wxASCII_STR("Position")
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#define wxPERSIST_SPLITTER_DEFAULT_HORIZONTAL wxASCII_STR("LastHorz")
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#define wxPERSIST_SPLITTER_DEFAULT_VERTICAL wxASCII_STR("LastVert")
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// ----------------------------------------------------------------------------
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// wxPersistentSplitter: supports saving/restoring splitter position
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// ----------------------------------------------------------------------------
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class wxPersistentSplitter : public wxPersistentWindow<wxSplitterWindow>
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{
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public:
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wxPersistentSplitter(wxSplitterWindow* splitter)
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: wxPersistentWindow<wxSplitterWindow>(splitter)
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{
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}
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virtual void Save() const override
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{
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wxSplitterWindow* const splitter = Get();
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int pos = splitter->IsSplit() ? splitter->GetSashPosition() : -1;
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SaveValue(wxPERSIST_SPLITTER_POSITION, pos);
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// Save the previously used position too if we have them.
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const wxPoint lastSplitPos = splitter->GetLastSplitPosition();
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if ( lastSplitPos.x || lastSplitPos.y )
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{
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SaveValue(wxPERSIST_SPLITTER_DEFAULT_HORIZONTAL, lastSplitPos.y);
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SaveValue(wxPERSIST_SPLITTER_DEFAULT_VERTICAL, lastSplitPos.x);
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}
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}
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virtual bool Restore() override
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{
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int pos;
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if ( !RestoreValue(wxPERSIST_SPLITTER_POSITION, &pos) )
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return false;
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if ( pos == -1 )
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Get()->Unsplit();
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else
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Get()->SetSashPosition(pos);
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// Note that it's possible that default position was not stored, in
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// which case lastSplitPos will just remain as (0, 0) and that's ok.
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wxPoint lastSplitPos;
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RestoreValue(wxPERSIST_SPLITTER_DEFAULT_HORIZONTAL, &lastSplitPos.x);
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RestoreValue(wxPERSIST_SPLITTER_DEFAULT_VERTICAL, &lastSplitPos.y);
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Get()->SetLastSplitPosition(lastSplitPos);
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return true;
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}
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virtual wxString GetKind() const override { return wxPERSIST_SPLITTER_KIND; }
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};
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inline wxPersistentObject *wxCreatePersistentObject(wxSplitterWindow* splitter)
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{
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return new wxPersistentSplitter(splitter);
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}
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#endif // _WX_PERSIST_SPLITTER_H_
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