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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 .
*/
#include <rtl/ustring.hxx>
#include <sal/log.hxx>
#include <editeng/overflowingtxt.hxx>
#include <editeng/outliner.hxx>
#include <editeng/outlobj.hxx>
#include <editeng/editeng.hxx>
#include <editeng/editobj.hxx>
#include <editeng/editdata.hxx>
#include <editdoc.hxx>
#include <utility>
std::optional<OutlinerParaObject> TextChainingUtils::JuxtaposeParaObject(
css::uno::Reference< css::datatransfer::XTransferable > const & xOverflowingContent,
Outliner *pOutl,
OutlinerParaObject const *pNextPObj)
{
if (!pNextPObj) {
pOutl->SetToEmptyText();
} else {
pOutl->SetText(*pNextPObj);
}
// Special case: if only empty text remove it at the end
bool bOnlyOneEmptyPara = !pNextPObj ||
(pOutl->GetParagraphCount() == 1 &&
pNextPObj->GetTextObject().GetText(0).isEmpty());
EditEngine &rEditEngine = const_cast<EditEngine &>(pOutl->GetEditEngine());
// XXX: this code should be moved in Outliner directly
// creating Outliner::InsertText(...transferable...)
EditSelection aStartSel(rEditEngine.CreateSelection(ESelection(0,0)));
EditSelection aNewSel = rEditEngine.InsertText(xOverflowingContent,
OUString(),
aStartSel.Min(),
true);
if (!bOnlyOneEmptyPara) {
// Separate Paragraphs
rEditEngine.InsertParaBreak(aNewSel);
}
return pOutl->CreateParaObject();
}
std::optional<OutlinerParaObject> TextChainingUtils::DeeplyMergeParaObject(
css::uno::Reference< css::datatransfer::XTransferable > const & xOverflowingContent,
Outliner *pOutl,
OutlinerParaObject const *pNextPObj)
{
if (!pNextPObj) {
pOutl->SetToEmptyText();
} else {
pOutl->SetText(*pNextPObj);
}
EditEngine &rEditEngine = const_cast<EditEngine &>(pOutl->GetEditEngine());
// XXX: this code should be moved in Outliner directly
// creating Outliner::InsertText(...transferable...)
EditSelection aStartSel(rEditEngine.CreateSelection(ESelection(0,0)));
// We don't need to mark the selection
// EditSelection aNewSel =
rEditEngine.InsertText(xOverflowingContent,
OUString(),
aStartSel.Min(),
true);
return pOutl->CreateParaObject();
}
css::uno::Reference< css::datatransfer::XTransferable > TextChainingUtils::CreateTransferableFromText(Outliner const *pOutl)
{
const EditEngine &rEditEngine = pOutl->GetEditEngine();
sal_Int32 nLastPara = pOutl->GetParagraphCount()-1;
ESelection aWholeTextSel(0, 0, nLastPara, rEditEngine.GetTextLen(nLastPara));
return rEditEngine.CreateTransferable(aWholeTextSel);
}
OverflowingText::OverflowingText(css::uno::Reference< css::datatransfer::XTransferable > xOverflowingContent) :
mxOverflowingContent(std::move(xOverflowingContent))
{
}
NonOverflowingText::NonOverflowingText(const ESelection &aSel, bool bLastParaInterrupted)
: maContentSel(aSel)
, mbLastParaInterrupted(bLastParaInterrupted)
{
}
bool NonOverflowingText::IsLastParaInterrupted() const
{
return mbLastParaInterrupted;
}
std::optional<OutlinerParaObject> NonOverflowingText::RemoveOverflowingText(Outliner *pOutliner) const
{
pOutliner->QuickDelete(maContentSel);
SAL_INFO("editeng.chaining", "Deleting selection from (Para: " << maContentSel.nStartPara
<< ", Pos: " << maContentSel.nStartPos << ") to (Para: " << maContentSel.nEndPara
<< ", Pos: " << maContentSel.nEndPos << ")");
return pOutliner->CreateParaObject();
}
ESelection NonOverflowingText::GetOverflowPointSel() const
{
//return getLastPositionSel(mpContentTextObj);
// return the starting point of the selection we are removing
return ESelection(maContentSel.nStartPara, maContentSel.nStartPos); //XXX
}
// The equivalent of ToParaObject for OverflowingText. Here we are prepending the overflowing text to the old dest box's text
// XXX: In a sense a better name for OverflowingText and NonOverflowingText are respectively DestLinkText and SourceLinkText
std::optional<OutlinerParaObject> OverflowingText::JuxtaposeParaObject(Outliner *pOutl, OutlinerParaObject const *pNextPObj)
{
return TextChainingUtils::JuxtaposeParaObject(mxOverflowingContent, pOutl, pNextPObj);
}
std::optional<OutlinerParaObject> OverflowingText::DeeplyMergeParaObject(Outliner *pOutl, OutlinerParaObject const *pNextPObj)
{
return TextChainingUtils::DeeplyMergeParaObject(mxOverflowingContent, pOutl, pNextPObj);
}
OFlowChainedText::OFlowChainedText(Outliner const *pOutl, bool bIsDeepMerge)
{
mpOverflowingTxt = pOutl->GetOverflowingText();
mpNonOverflowingTxt = pOutl->GetNonOverflowingText();
mbIsDeepMerge = bIsDeepMerge;
}
OFlowChainedText::~OFlowChainedText()
{
}
ESelection OFlowChainedText::GetOverflowPointSel() const
{
return mpNonOverflowingTxt->GetOverflowPointSel();
}
std::optional<OutlinerParaObject> OFlowChainedText::InsertOverflowingText(Outliner *pOutliner, OutlinerParaObject const *pTextToBeMerged)
{
// Just return the roughly merged paras for now
if (!mpOverflowingTxt)
return std::nullopt;
if (mbIsDeepMerge) {
SAL_INFO("editeng.chaining", "[TEXTCHAINFLOW - OF] Deep merging paras" );
return mpOverflowingTxt->DeeplyMergeParaObject(pOutliner, pTextToBeMerged );
} else {
SAL_INFO("editeng.chaining", "[TEXTCHAINFLOW - OF] Juxtaposing paras" );
return mpOverflowingTxt->JuxtaposeParaObject(pOutliner, pTextToBeMerged );
}
}
std::optional<OutlinerParaObject> OFlowChainedText::RemoveOverflowingText(Outliner *pOutliner)
{
if (!mpNonOverflowingTxt)
return std::nullopt;
return mpNonOverflowingTxt->RemoveOverflowingText(pOutliner);
}
bool OFlowChainedText::IsLastParaInterrupted() const
{
return mpNonOverflowingTxt->IsLastParaInterrupted();
}
UFlowChainedText::UFlowChainedText(Outliner const *pOutl, bool bIsDeepMerge)
{
mxUnderflowingTxt = TextChainingUtils::CreateTransferableFromText(pOutl);
mbIsDeepMerge = bIsDeepMerge;
}
std::optional<OutlinerParaObject> UFlowChainedText::CreateMergedUnderflowParaObject(Outliner *pOutl, OutlinerParaObject const *pNextLinkWholeText)
{
std::optional<OutlinerParaObject> pNewText;
if (mbIsDeepMerge) {
SAL_INFO("editeng.chaining", "[TEXTCHAINFLOW - UF] Deep merging paras" );
pNewText = TextChainingUtils::DeeplyMergeParaObject(mxUnderflowingTxt, pOutl, pNextLinkWholeText);
} else {
// NewTextForCurBox = Txt(CurBox) ++ Txt(NextBox)
SAL_INFO("editeng.chaining", "[TEXTCHAINFLOW - UF] Juxtaposing paras" );
pNewText = TextChainingUtils::JuxtaposeParaObject(mxUnderflowingTxt, pOutl, pNextLinkWholeText);
}
return pNewText;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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