/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
/*
* 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/.
*/
#pragma once
#include <i18nutil/i18nutildllapi.h>
#include <com/sun/star/text/ScriptHintType.hpp>
#include <rtl/ustring.hxx>
#include <optional>
#include <memory>
#include <vector>
namespace i18nutil
{
struct DirectionChange
{
sal_Int32 m_nStartIndex = 0;
sal_Int32 m_nEndIndex = 0;
sal_uInt8 m_nLevel = 0;
bool m_bHasEmbeddedStrongLTR =
false;
};
struct ScriptChange
{
sal_Int32 m_nStartIndex = 0;
sal_Int32 m_nEndIndex = 0;
sal_Int16 m_nScriptType = 0;
};
enum class ScriptHintType : sal_uInt16
{
Automatic = css::text::ScriptHintType::AUTOMATIC,
Ignore = css::text::ScriptHintType::IGNORE,
Latin = css::text::ScriptHintType::LATIN,
Asian = css::text::ScriptHintType::ASIAN,
Complex = css::text::ScriptHintType::COMPLEX
};
struct ScriptHint
{
sal_Int32 m_nStartIndex = 0;
sal_Int32 m_nEndIndex = 0;
ScriptHintType m_eType = ScriptHintType::Automatic;
ScriptHint(ScriptHintType eType, sal_Int32 nStartIndex, sal_Int32 nEndIndex)
: m_nStartIndex(nStartIndex)
, m_nEndIndex(nEndIndex)
, m_eType(eType)
{
}
};
class I18NUTIL_DLLPUBLIC ScriptHintProvider
{
private:
std::vector<ScriptHint> m_aHints;
ScriptHintType m_eParaHint = ScriptHintType::Automatic;
std::vector<ScriptHint>::iterator m_pCurrIt;
ScriptHintType m_eCurrHint = ScriptHintType::Automatic;
sal_Int32 m_nCurrIdx = 0;
public:
void SetParagraphLevelHint(ScriptHintType eType);
void AddHint(ScriptHintType eType, sal_Int32 nStartIndex, sal_Int32 nEndIndex);
void Start();
void AdvanceTo(sal_Int32 nNextIdx);
ScriptHintType Peek()
const;
};
class I18NUTIL_DLLPUBLIC DirectionChangeScanner
{
public:
virtual ~DirectionChangeScanner() =
default;
virtual bool AtEnd()
const = 0;
virtual void Advance() = 0;
virtual DirectionChange Peek()
const = 0;
virtual sal_uInt8 GetLevelAt(sal_Int32 nIndex)
const = 0;
virtual void Reset() = 0;
};
class I18NUTIL_DLLPUBLIC ScriptChangeScanner
{
public:
virtual ~ScriptChangeScanner() =
default;
virtual bool AtEnd()
const = 0;
virtual void Advance() = 0;
virtual ScriptChange Peek()
const = 0;
};
I18NUTIL_DLLPUBLIC std::unique_ptr<DirectionChangeScanner>
MakeDirectionChangeScanner(
const OUString& rWord, sal_uInt8 nInitialDirection);
I18NUTIL_DLLPUBLIC std::unique_ptr<ScriptChangeScanner>
MakeScriptChangeScanner(
const OUString& rWord, sal_Int16 nDefaultScriptType,
DirectionChangeScanner& rDirScanner, ScriptHintProvider& rHints);
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
