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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/.
*/
#ifndef TOXTABSTOPTOKENHANDLER_HXX_
#define TOXTABSTOPTOKENHANDLER_HXX_
#include <rtl/ustring.hxx>
#include <editeng/tstpitem.hxx>
struct SwFormToken;
class SwPageDesc;
class SwRootFrame;
class SwTextNode;
namespace sw {
/** This class handles tab stop tokens in the pattern for tox entries.
*
* @internal
* This is an interface class. It allows to mock the class in unit tests
*/
class ToxTabStopTokenHandler
{
public:
virtual ~ToxTabStopTokenHandler() {}
/** Return value of HandleTabStopToken */
struct HandledTabStopToken {
OUString text;
SvxTabStop tabStop;
};
/** Handle a tab stop token.
*
* @returns A HandledTabStopToken. Make sure to append the text field to the text of the target node
* and to provide the returned SvxTabStop to the attributes of the node.
*/
virtual HandledTabStopToken
HandleTabStopToken(const SwFormToken& aToken, const SwTextNode& targetNode,
const SwRootFrame *currentLayout) const = 0;
};
/** The default implementation of ToxTabStopTokenHandler */
class DefaultToxTabStopTokenHandler final : public ToxTabStopTokenHandler
{
public:
enum TabStopReferencePolicy {TABSTOPS_RELATIVE_TO_INDENT, TABSTOPS_RELATIVE_TO_PAGE};
/**
* @param indexOfSectionNode
* The index of the section node. It is needed to determine whether a page description was given by a node
* before the tox section.
*
* @param defaultPageDescription
* Which page description shall be used if we do not find one or the found page description was provided by
* a node before the tox section
*
* @param tabPositionIsRelativeToParagraphIndent
* Whether the tab position is relative to the paragraph indent. (toxForm.IsRelTabPos() is true or false.)
*
* @param tabstopReferencePolicy
* How tab stops are positioned. (#i21237) The default behavior is to place tab stops relative to the page.
*/
DefaultToxTabStopTokenHandler(sal_uInt32 indexOfSectionNode, const SwPageDesc& defaultPageDescription,
bool tabPositionIsRelativeToParagraphIndent,
TabStopReferencePolicy referencePolicy);
/** Handle a tab stop token.
*
* If the token contains tab alignment information, that is used to create the SvxTabStop.
* Else, the information about the tab stop is taken from a page description.
* Depending on the TabStopReferencePolicy provided in the constructor, the
* method behaves differently when deriving the tab stop position.
*/
ToxTabStopTokenHandler::HandledTabStopToken
HandleTabStopToken(const SwFormToken& aToken, const SwTextNode& targetNode,
const SwRootFrame *currentLayout) const override;
private:
/** Test whether the page layout can be obtained by a layout rectangle.
*
* Is used to determine how to find tab stop position.
*/
static bool
CanUseLayoutRectangle(const SwTextNode& targetNode, const SwRootFrame *currentLayout);
/** Calculate the page margin from the page description.
*
* This is the fallback method to determine the position of a tab stop.
*/
long
CalculatePageMarginFromPageDescription(const SwTextNode& targetNode) const;
sal_uInt32 const mIndexOfSectionNode;
const SwPageDesc& mDefaultPageDescription;
bool const mTabPositionIsRelativeToParagraphIndent;
TabStopReferencePolicy const mTabStopReferencePolicy;
};
}
#endif /* TOXTABSTOPTOKENHANDLER_HXX_ */
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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