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63 lines
1.8 KiB
C++
63 lines
1.8 KiB
C++
/***************************************************************
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* Name: CanvasState.h
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* Purpose: Defines container for stored canvas state
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* Author: Michal Bližňák (michal.bliznak@tiscali.cz)
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* Created: 2007-07-22
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* Copyright: Michal Bližňák
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* License: wxWidgets license (www.wxwidgets.org)
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* Notes:
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**************************************************************/
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#ifndef _WXSFCANVASSTATE_H
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#define _WXSFCANVASSTATE_H
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#include <wx/wxprec.h>
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#include <wx/wxsf/Defs.h>
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#include <wx/wxsf/DiagramManager.h>
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class wxSFShapeCanvas;
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/*! \brief
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* Class which stores one saved state of the shape canvas. The instaces of this
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* class are managed by the wxSFCanvasHistory class which performs all related Undo/Redo
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* operations.
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* \sa wxSFShapeCanvas
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*/
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class wxSFCanvasState : public wxObject
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{
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friend class wxSFCanvasHistory;
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public:
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/*! \brief
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* Constructor for 'histUSE_SERIALIZATION' mode.
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* \param data Pointer to the stream buffer containig serialized content of the shape canvas
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*/
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wxSFCanvasState(wxStreamBuffer* data);
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/*! \brief
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* Constructor for 'histUSE_CLONING' mode.
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* \param data Pointer to temporal data manager
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*/
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wxSFCanvasState(wxSFDiagramManager *data);
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/*! \brief Destructor. */
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~wxSFCanvasState(void);
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protected:
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// protected functions
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/*! \brief
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* Restore stored canvas state.
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* \param canvas Pointer to the shape canvas which content will be replaced by the stored one
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*/
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void Restore(wxSFShapeCanvas* canvas);
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// protected data members
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/*! \brief Memory buffer used during the serialization/deserialization operations. */
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wxMemoryBuffer m_dataBuffer;
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/*! \brief Data manager used for storing of temporal canvas state. */
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wxSFDiagramManager *m_pDataManager;
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};
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WX_DECLARE_LIST(wxSFCanvasState, StateList);
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#endif //_WXSFCANVASSTATE_H
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