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| -rw-r--r-- | sd/source/ui/sidebar/DocumentHelper.cxx | 536 |
1 files changed, 536 insertions, 0 deletions
diff --git a/sd/source/ui/sidebar/DocumentHelper.cxx b/sd/source/ui/sidebar/DocumentHelper.cxx new file mode 100644 index 000000000..00c028868 --- /dev/null +++ b/sd/source/ui/sidebar/DocumentHelper.cxx @@ -0,0 +1,536 @@ +/* -*- 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 "DocumentHelper.hxx" + +#include <drawdoc.hxx> +#include <DrawDocShell.hxx> +#include <sdpage.hxx> +#include <glob.hxx> +#include <unmovss.hxx> +#include <strings.hrc> +#include <sdresid.hxx> +#include <undoback.hxx> +#include <ViewShell.hxx> +#include <ViewShellBase.hxx> +#include <com/sun/star/drawing/XDrawPagesSupplier.hpp> +#include <com/sun/star/drawing/XDrawPages.hpp> +#include <stlpool.hxx> +#include <svx/xfillit0.hxx> +#include <svx/svdundo.hxx> +#include <tools/diagnose_ex.h> +#include <xmloff/autolayout.hxx> +#include <sal/log.hxx> + +using namespace ::com::sun::star; + +namespace sd::sidebar { + +SdPage* DocumentHelper::CopyMasterPageToLocalDocument ( + SdDrawDocument& rTargetDocument, + SdPage* pMasterPage) +{ + SdPage* pNewMasterPage = nullptr; + + do + { + if (pMasterPage == nullptr) + break; + + // Check the presence of the source document. + SdDrawDocument& rSourceDocument(static_cast< SdDrawDocument& >(pMasterPage->getSdrModelFromSdrPage())); + + // When the given master page already belongs to the target document + // then there is nothing more to do. + if (&rSourceDocument == &rTargetDocument) + { + pNewMasterPage = pMasterPage; + break; + } + + // Test if the master pages of both the slide and its notes page are + // present. This is not the case when we are called during the + // creation of the slide master page because then the notes master + // page is not there. + sal_uInt16 nSourceMasterPageCount = rSourceDocument.GetMasterPageCount(); + if (nSourceMasterPageCount%2 == 0) + // There should be 1 handout page + n slide masters + n notes + // masters = 2*n+1. An even value indicates that a new slide + // master but not yet the notes master has been inserted. + break; + sal_uInt16 nIndex = pMasterPage->GetPageNum(); + if (nSourceMasterPageCount <= nIndex+1) + break; + // Get the slide master page. + if (pMasterPage != static_cast<SdPage*>( + rSourceDocument.GetMasterPage(nIndex))) + break; + // Get the notes master page. + SdPage* pNotesMasterPage = static_cast<SdPage*>( + rSourceDocument.GetMasterPage(nIndex+1)); + if (pNotesMasterPage == nullptr) + break; + + // Check if a master page with the same name as that of the given + // master page already exists. + bool bPageExists (false); + sal_uInt16 nMasterPageCount(rTargetDocument.GetMasterSdPageCount(PageKind::Standard)); + for (sal_uInt16 nMaster=0; nMaster<nMasterPageCount; nMaster++) + { + SdPage* pCandidate = rTargetDocument.GetMasterSdPage (nMaster, PageKind::Standard); + if (pCandidate->GetName() == pMasterPage->GetName()) + { + bPageExists = true; + pNewMasterPage = pCandidate; + break; + } + } + if (bPageExists) + break; + + // Create a new slide (and its notes page.) + uno::Reference<drawing::XDrawPagesSupplier> xSlideSupplier ( + rTargetDocument.getUnoModel(), uno::UNO_QUERY); + if ( ! xSlideSupplier.is()) + break; + uno::Reference<drawing::XDrawPages> xSlides = + xSlideSupplier->getDrawPages(); + if ( ! xSlides.is()) + break; + xSlides->insertNewByIndex (xSlides->getCount()); + + // Set a layout. + SdPage* pSlide = rTargetDocument.GetSdPage( + rTargetDocument.GetSdPageCount(PageKind::Standard)-1, + PageKind::Standard); + if (pSlide == nullptr) + break; + pSlide->SetAutoLayout(AUTOLAYOUT_TITLE, true); + + // Create a copy of the master page and the associated notes + // master page and insert them into our document. + pNewMasterPage = AddMasterPage(rTargetDocument, pMasterPage); + if (pNewMasterPage==nullptr) + break; + SdPage* pNewNotesMasterPage + = AddMasterPage(rTargetDocument, pNotesMasterPage); + if (pNewNotesMasterPage==nullptr) + break; + + // Make the connection from the new slide to the master page + // (and do the same for the notes page.) + rTargetDocument.SetMasterPage ( + rTargetDocument.GetSdPageCount(PageKind::Standard)-1, + pNewMasterPage->GetName(), + &rTargetDocument, + false, // Connect the new master page with the new slide but + // do not modify other (master) pages. + true); + } + while (false); + + // We are not interested in any automatisms for our modified internal + // document. + rTargetDocument.SetChanged(false); + + return pNewMasterPage; +} + +SdPage* DocumentHelper::GetSlideForMasterPage (SdPage const * pMasterPage) +{ + SdPage* pCandidate = nullptr; + + SdDrawDocument* pDocument = nullptr; + if (pMasterPage != nullptr) + pDocument = dynamic_cast< SdDrawDocument* >(&pMasterPage->getSdrModelFromSdrPage()); + + // Iterate over all pages and check if it references the given master + // page. + if (pDocument!=nullptr && pDocument->GetSdPageCount(PageKind::Standard) > 0) + { + // In most cases a new slide has just been inserted so start with + // the last page. + sal_uInt16 nPageIndex (pDocument->GetSdPageCount(PageKind::Standard)-1); + bool bFound (false); + while ( ! bFound) + { + pCandidate = pDocument->GetSdPage( + nPageIndex, + PageKind::Standard); + if (pCandidate != nullptr) + { + if (static_cast<SdPage*>(&pCandidate->TRG_GetMasterPage()) + == pMasterPage) + { + bFound = true; + break; + } + } + + if (nPageIndex == 0) + break; + else + nPageIndex --; + } + + // If no page was found, that referenced the given master page, reset + // the pointer that is returned. + if ( ! bFound) + pCandidate = nullptr; + } + + return pCandidate; +} + +SdPage* DocumentHelper::AddMasterPage ( + SdDrawDocument& rTargetDocument, + SdPage const * pMasterPage) +{ + rtl::Reference<SdPage> pClonedMasterPage; + + if (pMasterPage!=nullptr) + { + try + { + // Duplicate the master page. + pClonedMasterPage = static_cast<SdPage*>(pMasterPage->CloneSdrPage(rTargetDocument).get()); + + // Copy the necessary styles. + SdDrawDocument& rSourceDocument(static_cast< SdDrawDocument& >(pMasterPage->getSdrModelFromSdrPage())); + ProvideStyles(rSourceDocument, rTargetDocument, pClonedMasterPage.get()); + + // Copy the precious flag. + pClonedMasterPage->SetPrecious(pMasterPage->IsPrecious()); + + // Now that the styles are available we can insert the cloned + // master page. + rTargetDocument.InsertMasterPage (pClonedMasterPage.get()); + } + catch(const uno::Exception&) + { + DBG_UNHANDLED_EXCEPTION("sd"); + pClonedMasterPage = nullptr; + } + catch(const ::std::exception& e) + { + pClonedMasterPage = nullptr; + SAL_WARN("sd", "caught general exception " << e.what()); + } + catch(...) + { + pClonedMasterPage = nullptr; + SAL_WARN("sd", "caught general exception"); + } + } + + return pClonedMasterPage.get(); +} + +void DocumentHelper::ProvideStyles ( + SdDrawDocument const & rSourceDocument, + SdDrawDocument& rTargetDocument, + SdPage const * pPage) +{ + // Get the layout name of the given page. + OUString sLayoutName (pPage->GetLayoutName()); + sal_Int32 nIndex = sLayoutName.indexOf(SD_LT_SEPARATOR); + if( nIndex != -1 ) + sLayoutName = sLayoutName.copy(0, nIndex); + + // Copy the style sheet from source to target document. + SdStyleSheetPool* pSourceStyleSheetPool = + static_cast<SdStyleSheetPool*>(rSourceDocument.GetStyleSheetPool()); + SdStyleSheetPool* pTargetStyleSheetPool = + static_cast<SdStyleSheetPool*>(rTargetDocument.GetStyleSheetPool()); + StyleSheetCopyResultVector aCreatedStyles; + pTargetStyleSheetPool->CopyLayoutSheets ( + sLayoutName, + *pSourceStyleSheetPool, + aCreatedStyles); + + // Add an undo action for the copied style sheets. + if( !aCreatedStyles.empty() ) + { + SfxUndoManager* pUndoManager = rTargetDocument.GetDocSh()->GetUndoManager(); + if (pUndoManager != nullptr) + { + pUndoManager->AddUndoAction ( + std::make_unique<SdMoveStyleSheetsUndoAction>( + &rTargetDocument, + aCreatedStyles, + true)); + } + } +} + +void DocumentHelper::AssignMasterPageToPageList ( + SdDrawDocument& rTargetDocument, + SdPage* pMasterPage, + const std::shared_ptr<std::vector<SdPage*> >& rpPageList) +{ + if (pMasterPage == nullptr || !pMasterPage->IsMasterPage()) + return; + + // Make the layout name by stripping out the layout postfix from the + // layout name of the given master page. + OUString sFullLayoutName(pMasterPage->GetLayoutName()); + OUString sBaseLayoutName (sFullLayoutName); + sal_Int32 nIndex = sBaseLayoutName.indexOf(SD_LT_SEPARATOR); + if( nIndex != -1 ) + sBaseLayoutName = sBaseLayoutName.copy(0, nIndex); + + if (rpPageList->empty()) + return; + + // Create a second list that contains only the valid pointers to + // pages for which an assignment is necessary. + ::std::vector<SdPage*> aCleanedList; + for (const auto& rpPage : *rpPageList) + { + OSL_ASSERT(rpPage!=nullptr && &rpPage->getSdrModelFromSdrPage() == &rTargetDocument); + if (rpPage != nullptr && rpPage->GetLayoutName() != sFullLayoutName) + { + aCleanedList.push_back(rpPage); + } + } + if (aCleanedList.empty() ) + return; + + ViewShellId nViewShellId(-1); + if (sd::ViewShell* pViewShell = rTargetDocument.GetDocSh()->GetViewShell()) + nViewShellId = pViewShell->GetViewShellBase().GetViewShellId(); + SfxUndoManager* pUndoMgr = rTargetDocument.GetDocSh()->GetUndoManager(); + if( pUndoMgr ) + pUndoMgr->EnterListAction(SdResId(STR_UNDO_SET_PRESLAYOUT), OUString(), 0, nViewShellId); + + SdPage* pMasterPageInDocument = ProvideMasterPage(rTargetDocument,pMasterPage,rpPageList); + if (pMasterPageInDocument == nullptr) + return; + + // Assign the master pages to the given list of pages. + for (const auto& rpPage : aCleanedList) + { + AssignMasterPageToPage ( + pMasterPageInDocument, + sBaseLayoutName, + rpPage); + } + + if( pUndoMgr ) + pUndoMgr->LeaveListAction(); +} + +SdPage* DocumentHelper::AddMasterPage ( + SdDrawDocument& rTargetDocument, + SdPage const * pMasterPage, + sal_uInt16 nInsertionIndex) +{ + rtl::Reference<SdPage> pClonedMasterPage; + + if (pMasterPage!=nullptr) + { + // Duplicate the master page. + pClonedMasterPage = static_cast<SdPage*>(pMasterPage->CloneSdrPage(rTargetDocument).get()); + + // Copy the precious flag. + pClonedMasterPage->SetPrecious(pMasterPage->IsPrecious()); + + // Copy the necessary styles. + SdDrawDocument& rSourceDocument(static_cast< SdDrawDocument& >(pMasterPage->getSdrModelFromSdrPage())); + ProvideStyles(rSourceDocument, rTargetDocument, pClonedMasterPage.get()); + + // Now that the styles are available we can insert the cloned + // master page. + rTargetDocument.InsertMasterPage (pClonedMasterPage.get(), nInsertionIndex); + + // Adapt the size of the new master page to that of the pages in + // the document. + Size aNewSize (rTargetDocument.GetSdPage(0, pMasterPage->GetPageKind())->GetSize()); + ::tools::Rectangle aBorders ( + pClonedMasterPage->GetLeftBorder(), + pClonedMasterPage->GetUpperBorder(), + pClonedMasterPage->GetRightBorder(), + pClonedMasterPage->GetLowerBorder()); + pClonedMasterPage->ScaleObjects(aNewSize, aBorders, true); + pClonedMasterPage->SetSize(aNewSize); + pClonedMasterPage->CreateTitleAndLayout(true); + } + + return pClonedMasterPage.get(); +} + +/** In here we have to handle three cases: + 1. pPage is a normal slide. We can use SetMasterPage to assign the + master pages to it. + 2. pPage is a master page that is used by at least one slide. We can + assign the master page to these slides. + 3. pPage is a master page that is currently not used by any slide. + We can delete that page and add copies of the given master pages + instead. + + For points 2 and 3 where one master page A is assigned to another B we have + to keep in mind that the master page that page A has already been + inserted into the target document. +*/ +void DocumentHelper::AssignMasterPageToPage ( + SdPage const * pMasterPage, + std::u16string_view rsBaseLayoutName, + SdPage* pPage) +{ + // Leave early when the parameters are invalid. + if (pPage == nullptr || pMasterPage == nullptr) + return; + + SdDrawDocument& rDocument(dynamic_cast< SdDrawDocument& >(pPage->getSdrModelFromSdrPage())); + + if ( ! pPage->IsMasterPage()) + { + // 1. Remove the background object (so that, if it exists, does + // not override the new master page) and assign the master page to + // the regular slide. + rDocument.GetDocSh()->GetUndoManager()->AddUndoAction( + std::make_unique<SdBackgroundObjUndoAction>( + rDocument, *pPage, pPage->getSdrPageProperties().GetItemSet()), + true); + pPage->getSdrPageProperties().PutItem(XFillStyleItem(drawing::FillStyle_NONE)); + + rDocument.SetMasterPage ( + (pPage->GetPageNum()-1)/2, + rsBaseLayoutName, + &rDocument, + false, + false); + } + else + { + // Find first slide that uses the master page. + SdPage* pSlide = nullptr; + sal_uInt16 nPageCount = rDocument.GetSdPageCount(PageKind::Standard); + for (sal_uInt16 nPage=0; nPage<nPageCount&&pSlide==nullptr; nPage++) + { + SdrPage* pCandidate = rDocument.GetSdPage(nPage,PageKind::Standard); + if (pCandidate != nullptr + && pCandidate->TRG_HasMasterPage() + && &(pCandidate->TRG_GetMasterPage()) == pPage) + { + pSlide = static_cast<SdPage*>(pCandidate); + } + } + + if (pSlide != nullptr) + { + // 2. Assign the given master pages to the first slide that was + // found above that uses the master page. + rDocument.SetMasterPage ( + (pSlide->GetPageNum()-1)/2, + rsBaseLayoutName, + &rDocument, + false, + false); + } + else + { + // 3. Replace the master page A by a copy of the given master + // page B. + rDocument.RemoveUnnecessaryMasterPages ( + pPage); + } + } +} + +SdPage* DocumentHelper::ProvideMasterPage ( + SdDrawDocument& rTargetDocument, + SdPage* pMasterPage, + const std::shared_ptr<std::vector<SdPage*> >& rpPageList) +{ + // Make sure that both the master page and its notes master exist + // in the source document. If one is missing then return without + // making any changes. + if (pMasterPage == nullptr) + { + // The caller should make sure that the master page is valid. + OSL_ASSERT(pMasterPage != nullptr); + return nullptr; + } + SdDrawDocument& rSourceDocument(static_cast< SdDrawDocument& >(pMasterPage->getSdrModelFromSdrPage())); + SdPage* pNotesMasterPage = static_cast<SdPage*>( + rSourceDocument.GetMasterPage(pMasterPage->GetPageNum()+1)); + if (pNotesMasterPage == nullptr) + { + // The model is not in a valid state. Maybe a new master page + // is being (not finished yet) created? Return without making + // any changes. + return nullptr; + } + + SdPage* pMasterPageInDocument = nullptr; + // Search for a master page with the same name as the given one in + // the target document. + const OUString sMasterPageLayoutName (pMasterPage->GetLayoutName()); + for (sal_uInt16 nIndex=0,nCount=rTargetDocument.GetMasterPageCount(); nIndex<nCount; ++nIndex) + { + SdPage* pCandidate = static_cast<SdPage*>(rTargetDocument.GetMasterPage(nIndex)); + if (pCandidate && sMasterPageLayoutName == pCandidate->GetLayoutName()) + { + // The requested master page does already exist in the + // target document, return it. + return pCandidate; + } + } + + // The given master page does not already belong to the target + // document so we have to create copies and insert them into the + // target document. + + // Determine the position where the new master pages are inserted. + // By default they are inserted at the end. When we assign to a + // master page then insert after the last of the (selected) pages. + sal_uInt16 nInsertionIndex = rTargetDocument.GetMasterPageCount(); + if (rpPageList->front()->IsMasterPage()) + { + nInsertionIndex = rpPageList->back()->GetPageNum(); + } + + // Clone the master page. + if (&pMasterPage->getSdrModelFromSdrPage() != &rTargetDocument) + { + pMasterPageInDocument = AddMasterPage (rTargetDocument, pMasterPage, nInsertionIndex); + if( rTargetDocument.IsUndoEnabled() ) + rTargetDocument.AddUndo( + rTargetDocument.GetSdrUndoFactory().CreateUndoNewPage(*pMasterPageInDocument)); + } + else + pMasterPageInDocument = pMasterPage; + + // Clone the notes master. + if (&pNotesMasterPage->getSdrModelFromSdrPage() != &rTargetDocument) + { + SdPage* pClonedNotesMasterPage + = AddMasterPage (rTargetDocument, pNotesMasterPage, nInsertionIndex+1); + if( rTargetDocument.IsUndoEnabled() ) + rTargetDocument.AddUndo( + rTargetDocument.GetSdrUndoFactory().CreateUndoNewPage(*pClonedNotesMasterPage)); + } + + return pMasterPageInDocument; +} + +} // end of namespace sd::sidebar + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |