itratr.hxx

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 *   Licensed to the Apache Software Foundation (ASF) under one or more
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#ifndef INCLUDED_SW_SOURCE_CORE_TEXT_ITRATR_HXX
#define INCLUDED_SW_SOURCE_CORE_TEXT_ITRATR_HXX
#include <o3tl/deleter.hxx>
#include "atrhndl.hxx"
#include <swfont.hxx>

namespace sw { struct MergedPara; }
class SwTextAttr;
class SwTextNode;
class SwRedlineItr;
class SwViewShell;
class SwTextFrame;

class SwAttrIter
{
    friend class SwFontSave;
protected:

    SwAttrHandler m_aAttrHandler;
    SwViewShell *m_pViewShell;
    SwFont* m_pFont;
    SwScriptInfo* m_pScriptInfo;

private:
    VclPtr<OutputDevice> m_pLastOut;
    short m_nChgCnt;
    std::unique_ptr<SwRedlineItr, o3tl::default_delete<SwRedlineItr>> m_pRedline;
    size_t m_nStartIndex;
    size_t m_nEndIndex;
    sal_Int32 m_nPosition;
    sal_uInt8 m_nPropFont;
    o3tl::enumarray<SwFontScript, const void*> m_aFontCacheIds;
    o3tl::enumarray<SwFontScript, sal_uInt16> m_aFontIdx;
    const SwTextNode* m_pTextNode;
    sw::MergedPara const* m_pMergedPara;

    void SeekFwd(sal_Int32 nOldPos, sal_Int32 nNewPos);
    void SetFnt( SwFont* pNew ) { m_pFont = pNew; }
    void InitFontAndAttrHandler(
        SwTextNode const& rPropsNode, SwTextNode const& rTextNode,
        OUString const& rText, bool const* pbVertLayout,
        bool const* pbVertLayoutLRBT);

protected:
    void Chg( SwTextAttr const *pHt );
    void Rst( SwTextAttr const *pHt );
    void CtorInitAttrIter(SwTextNode& rTextNode, SwScriptInfo& rScrInf, SwTextFrame const* pFrame = nullptr);
    explicit SwAttrIter(SwTextNode const * pTextNode);

public:
    SwAttrIter(SwTextNode& rTextNode, SwScriptInfo& rScrInf, SwTextFrame const*const pFrame = nullptr);

    virtual ~SwAttrIter();

    SwRedlineItr *GetRedln() { return m_pRedline.get(); }
    // The parameter returns the position of the next change before or at the
    // char position.
    TextFrameIndex GetNextAttr() const;
    bool Seek(TextFrameIndex nPos);
    // Creates the font at the specified position via Seek() and checks
    // if it's a symbol font.
    bool IsSymbol(TextFrameIndex nPos);

    bool SeekAndChgAttrIter(TextFrameIndex nPos, OutputDevice* pOut);
    bool SeekStartAndChgAttrIter( OutputDevice* pOut, const bool bParaFont );

    // Do we possibly have nasty things like footnotes?
    bool MaybeHasHints() const;

    // Returns the attribute for a position
    SwTextAttr *GetAttr(TextFrameIndex nPos) const;

    SwFont *GetFnt() { return m_pFont; }
    const SwFont *GetFnt() const { return m_pFont; }

    sal_uInt8 GetPropFont() const { return m_nPropFont; }
    void SetPropFont( const sal_uInt8 nNew ) { m_nPropFont = nNew; }

    SwAttrHandler& GetAttrHandler() { return m_aAttrHandler; }
};

#endif

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