OutlinerIteratorImpl.hxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * This file incorporates work covered by the following license notice:
 *
 *   Licensed to the Apache Software Foundation (ASF) under one or more
 *   contributor license agreements. See the NOTICE file distributed
 *   with this work for additional information regarding copyright
 *   ownership. The ASF licenses this file to you under the Apache
 *   License, Version 2.0 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
 */
 
#pragma once
 
#include <svx/svditer.hxx>
#include <OutlinerIterator.hxx>
#include <optional>
 
class SdDrawDocument;
class SdPage;
 
namespace sd {
 
class ViewShell;
 
namespace outliner {
 
class IteratorImplBase
{
public:
    IteratorImplBase (SdDrawDocument* pDocument,
        const std::weak_ptr<ViewShell>& rpViewShellWeak,
        bool bDirectionIsForward);
    IteratorImplBase (SdDrawDocument* pDocument,
        std::weak_ptr<ViewShell> pViewShellWeak,
        bool bDirectionIsForward, PageKind ePageKind, EditMode eEditMode);
    virtual ~IteratorImplBase();
 
    virtual void GotoNextText() = 0;
    virtual const IteratorPosition& GetPosition();
    virtual IteratorImplBase* Clone (IteratorImplBase* pObject=nullptr) const;
    virtual bool operator== (const IteratorImplBase& rIterator) const;
    virtual bool IsEqualSelection(const IteratorImplBase& rIterator) const;
    virtual void Reverse();
 
protected:
    IteratorPosition maPosition;
    SdDrawDocument* mpDocument;
    std::weak_ptr<ViewShell> mpViewShellWeak;
    bool mbDirectionIsForward;
};
 
class SelectionIteratorImpl final
    : public IteratorImplBase
{
public:
    SelectionIteratorImpl (
        const ::std::vector< ::unotools::WeakReference<SdrObject> >& rObjectList,
        sal_Int32 nObjectIndex,
        SdDrawDocument* pDocument,
        const std::weak_ptr<ViewShell>& rpViewShellWeak,
        bool bDirectionIsForward);
    SelectionIteratorImpl (const SelectionIteratorImpl& rObject);
    virtual ~SelectionIteratorImpl() override;
 
    virtual void GotoNextText() override;
    virtual const IteratorPosition& GetPosition() override;
    virtual IteratorImplBase* Clone (IteratorImplBase* pObject = nullptr) const override;
    virtual bool operator== (const IteratorImplBase& rIterator) const override;
 
private:
    const ::std::vector<::unotools::WeakReference<SdrObject>>& mrObjectList;
    sal_Int32 mnObjectIndex;
 
    virtual bool IsEqualSelection(const IteratorImplBase& rIterator) const override;
 
    IteratorImplBase& operator= (const IteratorImplBase& rIterator);
};
 
class ViewIteratorImpl : public IteratorImplBase
{
public:
    ViewIteratorImpl (
        sal_Int32 nPageIndex,
        SdDrawDocument* pDocument,
        const std::weak_ptr<ViewShell>& rpViewShellWeak,
        bool bDirectionIsForward);
    ViewIteratorImpl (
        sal_Int32 nPageIndex,
        SdDrawDocument* pDocument,
        const std::weak_ptr<ViewShell>& rpViewShellWeak,
        bool bDirectionIsForward,
        PageKind ePageKind,
        EditMode eEditMode);
    virtual ~ViewIteratorImpl() override;
 
    virtual void GotoNextText() override;
    virtual IteratorImplBase* Clone (IteratorImplBase* pObject = nullptr) const override;
    virtual void Reverse() override;
 
protected:
    void SetPage (sal_Int32 nPageIndex);
 
private:
    bool mbPageChangeOccurred;
    SdPage* mpPage;
    std::optional<SdrObjListIter> moObjectIterator;
 
    // Don't use this operator.
    ViewIteratorImpl& operator= (const ViewIteratorImpl&) = delete;
};
 
class DocumentIteratorImpl final : public ViewIteratorImpl
{
public:
    DocumentIteratorImpl (
        sal_Int32 nPageIndex,
        PageKind ePageKind,
        EditMode eEditMode,
        SdDrawDocument* pDocument,
        const std::weak_ptr<ViewShell>& rpViewShellWeak,
        bool bDirectionIsForward);
    virtual ~DocumentIteratorImpl() override;
 
    virtual void GotoNextText() override;
    virtual IteratorImplBase* Clone (IteratorImplBase* pObject = nullptr) const override;
 
private:
    sal_Int32 mnPageCount;
 
    // Don't use this operator.
    DocumentIteratorImpl& operator= (const DocumentIteratorImpl& ) = delete;
};
 
} } // end of namespace ::sd::outliner
 
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