unocrsr.hxx

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 *   Licensed to the Apache Software Foundation (ASF) under one or more
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#ifndef INCLUDED_SW_INC_UNOCRSR_HXX
#define INCLUDED_SW_INC_UNOCRSR_HXX
 
#include "swcrsr.hxx"
#include <svl/SfxBroadcaster.hxx>
#include <svl/lstner.hxx>
#include <utility>
 
namespace sw
{
    struct SW_DLLPUBLIC UnoCursorHint final : public SfxHint
    {
        UnoCursorHint() {}
        virtual ~UnoCursorHint() override;
    };
}
 
class SAL_DLLPUBLIC_RTTI SwUnoCursor : public virtual SwCursor
{
private:
    bool m_bRemainInSection : 1;
    bool m_bSkipOverHiddenSections : 1;
    bool m_bSkipOverProtectSections : 1;
 
public:
    SfxBroadcaster m_aNotifier;
    SwUnoCursor( const SwPosition &rPos );
    virtual ~SwUnoCursor() override;
 
protected:
 
    virtual const SwContentFrame* DoSetBidiLevelLeftRight(
        bool & io_rbLeft, bool bVisualAllowed, bool bInsertCursor) override;
    virtual void DoSetBidiLevelUpDown() override;
 
public:
 
    // Does a selection of content exist in table?
    // Return value indicates if the cursor remains at its old position.
    virtual bool IsSelOvr( SwCursorSelOverFlags eFlags =
                                 SwCursorSelOverFlags::CheckNodeSection |
                                 SwCursorSelOverFlags::Toggle |
                                 SwCursorSelOverFlags::ChangePos ) override;
 
    virtual bool IsReadOnlyAvailable() const override;
 
    bool IsRemainInSection() const          { return m_bRemainInSection; }
    void SetRemainInSection( bool bFlag )   { m_bRemainInSection = bFlag; }
 
    virtual bool IsSkipOverProtectSections() const override
                                    { return m_bSkipOverProtectSections; }
    void SetSkipOverProtectSections( bool bFlag )
                                    { m_bSkipOverProtectSections = bFlag; }
 
    virtual bool IsSkipOverHiddenSections() const override
                                    { return m_bSkipOverHiddenSections; }
    void SetSkipOverHiddenSections( bool bFlag )
                                    { m_bSkipOverHiddenSections = bFlag; }
};
 
class SwUnoTableCursor final : public virtual SwUnoCursor, public virtual SwTableCursor
{
    // The selection has the same order as the table boxes, i.e.
    // if something is deleted from the one array at a certain position
    // it has also to be deleted from the other!
    SwCursor m_aTableSel;
 
    using SwTableCursor::MakeBoxSels;
 
public:
    SwUnoTableCursor( const SwPosition& rPos );
    virtual ~SwUnoTableCursor() override;
 
    // Does a selection of content exist in table?
    // Return value indicates if the cursor remains at its old position.
    virtual bool IsSelOvr( SwCursorSelOverFlags eFlags =
                                 SwCursorSelOverFlags::CheckNodeSection |
                                 SwCursorSelOverFlags::Toggle |
                                 SwCursorSelOverFlags::ChangePos ) override;
 
    void MakeBoxSels();
 
          SwCursor& GetSelRing()            { return m_aTableSel; }
    const SwCursor& GetSelRing() const      { return m_aTableSel; }
};
 
namespace sw
{
    class UnoCursorPointer final : public SfxListener
    {
        public:
            UnoCursorPointer()
           {}
            UnoCursorPointer(std::shared_ptr<SwUnoCursor> pCursor)
                : m_pCursor(std::move(pCursor))
            {
                StartListening(m_pCursor->m_aNotifier);
            }
            UnoCursorPointer(const UnoCursorPointer& rOther)
                : SfxListener()
                , m_pCursor(rOther.m_pCursor)
            {
                if(m_pCursor)
                    StartListening(m_pCursor->m_aNotifier);
            }
            virtual ~UnoCursorPointer() override
            {
                if(m_pCursor)
                    EndListening(m_pCursor->m_aNotifier);
            }
            virtual void Notify(SfxBroadcaster& rBC, const SfxHint& rHint) override
            {
                if(m_pCursor)
                {
                    if(typeid(rHint) == typeid(UnoCursorHint))
                        EndListening(rBC);
                }
                if(!GetBroadcasterCount())
                    m_pCursor.reset();
            };
            SwUnoCursor* get() const
                { return m_pCursor.get(); }
            SwUnoCursor* operator->() const
                { return get(); }
            SwUnoCursor& operator*() const
                { return *get(); }
            UnoCursorPointer& operator=(UnoCursorPointer aOther)
            {
                if (m_pCursor)
                {
                    EndListening(m_pCursor->m_aNotifier);
                }
                if(aOther.m_pCursor)
                    StartListening(aOther.m_pCursor->m_aNotifier);
                m_pCursor = aOther.m_pCursor;
                return *this;
            }
            explicit operator bool() const
                { return static_cast<bool>(m_pCursor); }
            void reset(std::shared_ptr<SwUnoCursor> pNew)
            {
                if(pNew)
                    StartListening(pNew->m_aNotifier);
                if (m_pCursor)
                    EndListening(m_pCursor->m_aNotifier);
                m_pCursor = pNew;
            }
        private:
            std::shared_ptr<SwUnoCursor> m_pCursor;
    };
}
#endif
 
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