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 * to you under the Apache License, Version 2.0 (the
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#ifndef PAGE_LIST_WATCHER_HXX
#define PAGE_LIST_WATCHER_HXX

#include "pres.hxx"
#include <sal/types.h>
#include <vector>

class SdPage;
class SdrModel;

/** Maintain a map of page indices to page objects for faster access that
    remains valid during deletions and insertions of pages (#109538#).
*/
class ImpPageListWatcher
{
protected:
	// typedefs for a vector of SdPages
	typedef ::std::vector< SdPage* > SdPageVector;

	const SdrModel&					mrModel;

	SdPageVector					maPageVectorStandard;
	SdPageVector					maPageVectorNotes;
	SdPage*							mpHandoutPage;

	sal_Bool						mbPageListValid;

	void ImpRecreateSortedPageListOnDemand();
	virtual sal_uInt32 ImpGetPageCount() const = 0;

    /** Return the page with the given index.
        @param nIndex
            When given an invalid index then NULL is returned.
    */
	virtual SdPage* ImpGetPage (sal_uInt32 nIndex) const = 0;

public:
	ImpPageListWatcher(const SdrModel& rModel);
	virtual ~ImpPageListWatcher();

	void Invalidate() { mbPageListValid = sal_False; }
	SdPage* GetSdPage(PageKind ePgKind, sal_uInt32 nPgNum = 0L);
	sal_uInt32 GetSdPageCount(PageKind ePgKind);
};

//////////////////////////////////////////////////////////////////////////////

class ImpDrawPageListWatcher : public ImpPageListWatcher
{
protected:
	virtual sal_uInt32 ImpGetPageCount() const;
	virtual SdPage* ImpGetPage(sal_uInt32 nIndex) const;

public:
	ImpDrawPageListWatcher(const SdrModel& rModel);
	virtual ~ImpDrawPageListWatcher();
};

//////////////////////////////////////////////////////////////////////////////

class ImpMasterPageListWatcher : public ImpPageListWatcher
{
protected:
	virtual sal_uInt32 ImpGetPageCount() const;
	virtual SdPage* ImpGetPage(sal_uInt32 nIndex) const;

public:
	ImpMasterPageListWatcher(const SdrModel& rModel);
	virtual ~ImpMasterPageListWatcher();
};

#endif