/* -*- 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 .
 */

#ifndef INCLUDED_EDITENG_EDITDATA_HXX
#define INCLUDED_EDITENG_EDITDATA_HXX

#include <rtl/ustring.hxx>
#include <editeng/editengdllapi.h>
#include <i18nlangtag/lang.h>
#include <editeng/ESelection.hxx>
#include <memory>

class SfxPoolItem;
template<typename T> class SvParser;
class SvxFieldItem;
enum class HtmlTokenId : sal_Int16;

enum class EETextFormat { Text = 0x20, Rtf, Html = 0x32, Xml };
enum class EEHorizontalTextDirection { Default, L2R, R2L };
enum class EESelectionMode  { Std, Hidden };
    // EESelectionMode::Hidden can be used to completely hide the selection. This is useful e.g. when you want show the selection
    // only as long as your window (which the edit view works on) has the focus
enum class EESpellState  { Ok, NoSpeller, ErrorFound };
enum class EEAnchorMode {
            TopLeft,     TopHCenter,     TopRight,
            VCenterLeft, VCenterHCenter, VCenterRight,
            BottomLeft,  BottomHCenter,  BottomRight };

enum class EERemoveParaAttribsMode { RemoveAll, RemoveCharItems, RemoveNone };

EDITENG_DLLPUBLIC extern const size_t EE_APPEND;

// Error messages for Read / Write Method
#define EE_READWRITE_WRONGFORMAT     ErrCode(ErrCodeArea::Svx, 1)

#define EDITUNDO_REMOVECHARS        100
#define EDITUNDO_CONNECTPARAS       101
#define EDITUNDO_MOVEPARAGRAPHS     103
#define EDITUNDO_INSERTFEATURE      104
#define EDITUNDO_SPLITPARA          105
#define EDITUNDO_INSERTCHARS        106
#define EDITUNDO_DELCONTENT         107
#define EDITUNDO_DELETE             108
#define EDITUNDO_CUT                109
#define EDITUNDO_PASTE              110
#define EDITUNDO_INSERT             111
#define EDITUNDO_MOVEPARAS          113
#define EDITUNDO_PARAATTRIBS        114
#define EDITUNDO_ATTRIBS            115
#define EDITUNDO_DRAGANDDROP        116
#define EDITUNDO_READ               117
#define EDITUNDO_STYLESHEET         118
#define EDITUNDO_REPLACEALL         119
#define EDITUNDO_RESETATTRIBS       121
#define EDITUNDO_INDENTBLOCK        122
#define EDITUNDO_UNINDENTBLOCK      123
#define EDITUNDO_MARKSELECTION      124
#define EDITUNDO_TRANSLITERATE      125

#define EDITUNDO_USER               200

struct EDITENG_DLLPUBLIC EFieldInfo
{
    std::unique_ptr<SvxFieldItem>   pFieldItem;
    OUString                        aCurrentText;
    EPaM                            aPosition = EPaM::NotFound();

    EFieldInfo();
    EFieldInfo( const SvxFieldItem& rFieldItem, sal_Int32 nPara, sal_Int32 nPos );
    ~EFieldInfo();

    EFieldInfo( const EFieldInfo& );
    EFieldInfo& operator= ( const EFieldInfo& );
};

enum class RtfImportState {
                    Start, End,               // only pParser, nPara, nIndex
                    NextToken, UnknownAttr,   // nToken+nTokenValue
                    SetAttr,                  // pAttrs
                    InsertText,               // aText
                    InsertPara,               // -
                    };
enum class HtmlImportState {
                    Start, End,               // only pParser, nPara, nIndex
                    NextToken,                // nToken
                    SetAttr,                  // pAttrs
                    InsertText,               // aText
                    InsertPara, InsertField   // -
                    };

struct HtmlImportInfo
{
    SvParser<HtmlTokenId>*  pParser;
    ESelection              aSelection;
    HtmlImportState         eState;

    HtmlTokenId             nToken;

    OUString                aText;

    HtmlImportInfo( HtmlImportState eState, SvParser<HtmlTokenId>* pPrsrs, const ESelection& rSel );
    ~HtmlImportInfo();
};

struct RtfImportInfo
{
    SvParser<int>*          pParser;
    ESelection              aSelection;
    RtfImportState          eState;

    int                     nToken;
    short                   nTokenValue;

    RtfImportInfo( RtfImportState eState, SvParser<int>* pPrsrs, const ESelection& rSel );
};

struct ParagraphInfos
{
    ParagraphInfos()
        : nFirstLineHeight( 0 )
        , nFirstLineTextHeight ( 0 )
        , nFirstLineMaxAscent( 0 )
        , bValid( false )
        {}

    sal_uInt16  nFirstLineHeight;
    sal_uInt16  nFirstLineTextHeight;
    sal_uInt16  nFirstLineMaxAscent;

    bool        bValid; // A query during formatting is not valid!
};

struct ScalingParameters
{
    double fFontX = 1.0;
    double fFontY = 1.0;
    double fSpacingX = 1.0;
    double fSpacingY = 1.0;

    bool operator==(const ScalingParameters& rOther) const = default;
    bool areValuesDefault()
    {
        return fFontX == 1.0 && fFontY == 1.0 && fSpacingX == 1.0 && fSpacingY == 1.0;
    }
};

struct EECharAttrib
{
    const SfxPoolItem*  pAttr;

    sal_Int32           nStart;
    sal_Int32           nEnd;
    EECharAttrib(sal_Int32 nSt, sal_Int32 nE, const SfxPoolItem* pA = nullptr)
        : pAttr(pA)
        , nStart(nSt)
        , nEnd(nE)
    {
    }
};

struct MoveParagraphsInfo
{
    sal_Int32  nStartPara;
    sal_Int32  nEndPara;
    sal_Int32  nDestPara;

    MoveParagraphsInfo( sal_Int32 nS, sal_Int32 nE, sal_Int32 nD )
        { nStartPara = nS; nEndPara = nE; nDestPara = nD; }
};

struct PasteOrDropInfos
{
    sal_Int32              nStartPara;
    sal_Int32              nEndPara;

    PasteOrDropInfos() : nStartPara(-1), nEndPara(-1)  {}
};

enum EENotifyType
{
    /// EditEngine text was modified
    EE_NOTIFY_TEXTMODIFIED,

    /// A paragraph was inserted into the EditEngine
    EE_NOTIFY_PARAGRAPHINSERTED,

    /// A paragraph was removed from the EditEngine
    EE_NOTIFY_PARAGRAPHREMOVED,

    /// Multiple paragraphs have been removed from the EditEngine
    EE_NOTIFY_PARAGRAPHSMOVED,

    /// The height of at least one paragraph has changed
    EE_NOTIFY_TextHeightChanged,

    /// The view area of the EditEngine scrolled
    EE_NOTIFY_TEXTVIEWSCROLLED,

    /// The selection and/or the cursor position has changed
    EE_NOTIFY_TEXTVIEWSELECTIONCHANGED,

    /// The EditEngine is in a valid state again. Process pending notifications.
    EE_NOTIFY_PROCESSNOTIFICATIONS,

    EE_NOTIFY_TEXTVIEWSELECTIONCHANGED_ENDD_PARA
};

struct EENotify
{
    EENotifyType    eNotificationType;

    sal_Int32 nParagraph = EE_PARA_MAX; // only valid in PARAGRAPHINSERTED/EE_NOTIFY_PARAGRAPHREMOVED

    sal_Int32 nParam1 = 0;
    sal_Int32 nParam2 = 0;

    EENotify(EENotifyType eType) { eNotificationType = eType; }
};

namespace editeng
{

struct LanguageSpan
{
    LanguageType nLang = LANGUAGE_DONTKNOW;
    sal_Int32 nStart = -1;
    sal_Int32 nEnd = -1;
};

}

#endif // INCLUDED_EDITENG_EDITDATA_HXX

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