sd/source/ui/sidebar/MasterPageObserver.cxx | 414 ++++++++++++++++++++++++++++
1 file changed, 414 insertions(+)
New commits:
commit d45ba6bb93a5325341cef6b9f25282537265de5d
Author: Caolán McNamara <caol...@redhat.com>
Date: Fri Sep 20 16:38:43 2013 +0100
missing file
Change-Id: Ia1e179ab423b847a6303d63cc663cf31db3283e8
diff --git a/sd/source/ui/sidebar/MasterPageObserver.cxx
b/sd/source/ui/sidebar/MasterPageObserver.cxx
new file mode 100644
index 0000000..a74e4a4
--- /dev/null
+++ b/sd/source/ui/sidebar/MasterPageObserver.cxx
@@ -0,0 +1,414 @@
+/*
+ * 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 "MasterPageObserver.hxx"
+
+#include <algorithm>
+#include "drawdoc.hxx"
+#include "sdpage.hxx"
+#include <boost/unordered_map.hpp>
+#include <set>
+#include <vector>
+#include <svl/lstner.hxx>
+#include <osl/doublecheckedlocking.h>
+#include <osl/getglobalmutex.hxx>
+
+
+namespace sd {
+
+class MasterPageObserver::Implementation
+ : public SfxListener
+{
+public:
+ /** The single instance of this class. It is created on demand when
+ Instance() is called for the first time.
+ */
+ static MasterPageObserver* mpInstance;
+
+ /** The master page observer will listen to events of this document and
+ detect changes of the use of master pages.
+ */
+ void RegisterDocument (SdDrawDocument& rDocument);
+
+ /** The master page observer will stop to listen to events of this
+ document.
+ */
+ void UnregisterDocument (SdDrawDocument& rDocument);
+
+ /** Add a listener that is informed of master pages that are newly
+ assigned to slides or become unassigned.
+ @param rEventListener
+ The event listener to call for future events. Call
+ RemoveEventListener() before the listener is destroyed.
+ */
+ void AddEventListener (const Link& rEventListener);
+
+ /** Remove the given listener from the list of listeners.
+ @param rEventListener
+ After this method returns the given listener is not called back
+ from this object. Passing a listener that has not
+ been registered before is safe and is silently ignored.
+ */
+ void RemoveEventListener (const Link& rEventListener);
+
+ /** Return a set of the names of master pages for the given document.
+ This convenience method exists because this set is part of the
+ internal data structure and thus takes no time to create.
+ */
+ inline MasterPageObserver::MasterPageNameSet GetMasterPageNames (
+ SdDrawDocument& rDocument);
+
+private:
+ ::std::vector<Link> maListeners;
+
+ struct DrawDocHash {
+ size_t operator()(SdDrawDocument* argument) const
+ { return reinterpret_cast<unsigned long>(argument); }
+ };
+ typedef ::boost::unordered_map<SdDrawDocument*,
+ MasterPageObserver::MasterPageNameSet,
+ DrawDocHash>
+ MasterPageContainer;
+ MasterPageContainer maUsedMasterPages;
+
+ virtual void Notify(
+ SfxBroadcaster& rBroadcaster,
+ const SfxHint& rHint);
+
+ void AnalyzeUsedMasterPages (SdDrawDocument& rDocument);
+
+ void SendEvent (MasterPageObserverEvent& rEvent);
+};
+
+MasterPageObserver* MasterPageObserver::Implementation::mpInstance = NULL;
+
+
+
+//===== MasterPageObserver ====================================================
+
+MasterPageObserver& MasterPageObserver::Instance (void)
+{
+ if (Implementation::mpInstance == NULL)
+ {
+ ::osl::GetGlobalMutex aMutexFunctor;
+ ::osl::MutexGuard aGuard (aMutexFunctor());
+ if (Implementation::mpInstance == NULL)
+ {
+ MasterPageObserver* pInstance = new MasterPageObserver ();
+ SdGlobalResourceContainer::Instance().AddResource (
+ ::std::auto_ptr<SdGlobalResource>(pInstance));
+ OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER();
+ Implementation::mpInstance = pInstance;
+ }
+ }
+ else
+ {
+ OSL_DOUBLE_CHECKED_LOCKING_MEMORY_BARRIER();
+ }
+
+ DBG_ASSERT(Implementation::mpInstance!=NULL,
+ "MasterPageObserver::Instance(): instance is NULL");
+ return *Implementation::mpInstance;
+}
+
+
+
+
+void MasterPageObserver::RegisterDocument (SdDrawDocument& rDocument)
+{
+ mpImpl->RegisterDocument (rDocument);
+}
+
+
+
+
+void MasterPageObserver::UnregisterDocument (SdDrawDocument& rDocument)
+{
+ mpImpl->UnregisterDocument (rDocument);
+}
+
+
+
+
+void MasterPageObserver::AddEventListener (const Link& rEventListener)
+{
+
+ mpImpl->AddEventListener (rEventListener);
+}
+
+
+
+
+void MasterPageObserver::RemoveEventListener (const Link& rEventListener)
+{
+ mpImpl->RemoveEventListener (rEventListener);
+}
+
+
+
+
+MasterPageObserver::MasterPageObserver (void)
+ : mpImpl (new Implementation())
+{}
+
+
+
+
+MasterPageObserver::~MasterPageObserver (void)
+{}
+
+
+
+
+//===== MasterPageObserver::Implementation ====================================
+
+void MasterPageObserver::Implementation::RegisterDocument (
+ SdDrawDocument& rDocument)
+{
+ // Gather the names of all the master pages in the given document.
+ MasterPageContainer::mapped_type aMasterPageSet;
+ sal_uInt16 nMasterPageCount = rDocument.GetMasterSdPageCount(PK_STANDARD);
+ for (sal_uInt16 nIndex=0; nIndex<nMasterPageCount; nIndex++)
+ {
+ SdPage* pMasterPage = rDocument.GetMasterSdPage (nIndex, PK_STANDARD);
+ if (pMasterPage != NULL)
+ aMasterPageSet.insert (pMasterPage->GetName());
+ }
+
+ maUsedMasterPages[&rDocument] = aMasterPageSet;
+
+ StartListening (rDocument);
+}
+
+
+
+
+void MasterPageObserver::Implementation::UnregisterDocument (
+ SdDrawDocument& rDocument)
+{
+ EndListening (rDocument);
+
+ MasterPageContainer::iterator
aMasterPageDescriptor(maUsedMasterPages.find(&rDocument));
+ if(aMasterPageDescriptor != maUsedMasterPages.end())
+ maUsedMasterPages.erase(aMasterPageDescriptor);
+}
+
+
+
+
+void MasterPageObserver::Implementation::AddEventListener (
+ const Link& rEventListener)
+{
+ if (::std::find (
+ maListeners.begin(),
+ maListeners.end(),
+ rEventListener) == maListeners.end())
+ {
+ maListeners.push_back (rEventListener);
+
+ // Tell the new listener about all the master pages that are
+ // currently in use.
+ typedef ::std::vector<String> StringList;
+ StringList aNewMasterPages;
+ StringList aRemovedMasterPages;
+ MasterPageContainer::iterator aDocumentIterator;
+ for (aDocumentIterator=maUsedMasterPages.begin();
+ aDocumentIterator!=maUsedMasterPages.end();
+ ++aDocumentIterator)
+ {
+ ::std::set<String>::reverse_iterator aNameIterator;
+ for (aNameIterator=aDocumentIterator->second.rbegin();
+ aNameIterator!=aDocumentIterator->second.rend();
+ ++aNameIterator)
+ {
+ MasterPageObserverEvent aEvent (
+ MasterPageObserverEvent::ET_MASTER_PAGE_EXISTS,
+ *aDocumentIterator->first,
+ *aNameIterator);
+ SendEvent (aEvent);
+ }
+ }
+ }
+}
+
+
+
+
+void MasterPageObserver::Implementation::RemoveEventListener (
+ const Link& rEventListener)
+{
+ maListeners.erase (
+ ::std::find (
+ maListeners.begin(),
+ maListeners.end(),
+ rEventListener));
+}
+
+
+
+
+MasterPageObserver::MasterPageNameSet
+ MasterPageObserver::Implementation::GetMasterPageNames (
+ SdDrawDocument& rDocument)
+{
+ MasterPageContainer::iterator aMasterPageDescriptor (
+ maUsedMasterPages.find(&rDocument));
+ if (aMasterPageDescriptor != maUsedMasterPages.end())
+ return aMasterPageDescriptor->second;
+ else
+ // Not found so return an empty set.
+ return MasterPageObserver::MasterPageNameSet();
+}
+
+
+
+
+void MasterPageObserver::Implementation::Notify(
+ SfxBroadcaster& rBroadcaster,
+ const SfxHint& rHint)
+{
+ if (rHint.ISA(SdrHint))
+ {
+ SdrHint& rSdrHint (*PTR_CAST(SdrHint,&rHint));
+ switch (rSdrHint.GetKind())
+ {
+ case HINT_PAGEORDERCHG:
+ // Process the modified set of pages only when the number of
+ // standard and notes master pages are equal. This test
+ // filters out events that are sent in between the insertion
+ // of a new standard master page and a new notes master
+ // page.
+ if (rBroadcaster.ISA(SdDrawDocument))
+ {
+ SdDrawDocument& rDocument (
+ static_cast<SdDrawDocument&>(rBroadcaster));
+ if (rDocument.GetMasterSdPageCount(PK_STANDARD)
+ == rDocument.GetMasterSdPageCount(PK_NOTES))
+ {
+ AnalyzeUsedMasterPages (rDocument);
+ }
+ }
+ break;
+
+ default:
+ break;
+ }
+ }
+}
+
+
+
+
+void MasterPageObserver::Implementation::AnalyzeUsedMasterPages (
+ SdDrawDocument& rDocument)
+{
+ // Create a set of names of the master pages used by the given document.
+ sal_uInt16 nMasterPageCount = rDocument.GetMasterSdPageCount(PK_STANDARD);
+ ::std::set<String> aCurrentMasterPages;
+ for (sal_uInt16 nIndex=0; nIndex<nMasterPageCount; nIndex++)
+ {
+ SdPage* pMasterPage = rDocument.GetMasterSdPage (nIndex, PK_STANDARD);
+ if (pMasterPage != NULL)
+ aCurrentMasterPages.insert (pMasterPage->GetName());
+ OSL_TRACE("currently used master page %d is %s",
+ nIndex,
+ ::rtl::OUStringToOString(pMasterPage->GetName(),
+ RTL_TEXTENCODING_UTF8).getStr());
+ }
+
+ typedef ::std::vector<String> StringList;
+ StringList aNewMasterPages;
+ StringList aRemovedMasterPages;
+ MasterPageContainer::iterator aOldMasterPagesDescriptor (
+ maUsedMasterPages.find(&rDocument));
+ if (aOldMasterPagesDescriptor != maUsedMasterPages.end())
+ {
+ StringList::iterator I;
+
+ ::std::set<String>::iterator J;
+ int i=0;
+ for (J=aOldMasterPagesDescriptor->second.begin();
+ J!=aOldMasterPagesDescriptor->second.end();
+ ++J)
+ OSL_TRACE("old used master page %d is %s",
+ i++,
+ ::rtl::OUStringToOString(*J,
+ RTL_TEXTENCODING_UTF8).getStr());
+
+ // Send events about the newly used master pages.
+ ::std::set_difference (
+ aCurrentMasterPages.begin(),
+ aCurrentMasterPages.end(),
+ aOldMasterPagesDescriptor->second.begin(),
+ aOldMasterPagesDescriptor->second.end(),
+ ::std::back_insert_iterator<StringList>(aNewMasterPages));
+ for (I=aNewMasterPages.begin(); I!=aNewMasterPages.end(); ++I)
+ {
+ OSL_TRACE(" added master page %s",
+ ::rtl::OUStringToOString(*I,
+ RTL_TEXTENCODING_UTF8).getStr());
+
+ MasterPageObserverEvent aEvent (
+ MasterPageObserverEvent::ET_MASTER_PAGE_ADDED,
+ rDocument,
+ *I);
+ SendEvent (aEvent);
+ }
+
+ // Send events about master pages that are not used any longer.
+ ::std::set_difference (
+ aOldMasterPagesDescriptor->second.begin(),
+ aOldMasterPagesDescriptor->second.end(),
+ aCurrentMasterPages.begin(),
+ aCurrentMasterPages.end(),
+ ::std::back_insert_iterator<StringList>(aRemovedMasterPages));
+ for (I=aRemovedMasterPages.begin(); I!=aRemovedMasterPages.end(); ++I)
+ {
+ OSL_TRACE(" removed master page %s",
+ ::rtl::OUStringToOString(*I,
+ RTL_TEXTENCODING_UTF8).getStr());
+
+ MasterPageObserverEvent aEvent (
+ MasterPageObserverEvent::ET_MASTER_PAGE_REMOVED,
+ rDocument,
+ *I);
+ SendEvent (aEvent);
+ }
+
+ // Store the new list of master pages.
+ aOldMasterPagesDescriptor->second = aCurrentMasterPages;
+ }
+}
+
+
+
+
+void MasterPageObserver::Implementation::SendEvent (
+ MasterPageObserverEvent& rEvent)
+{
+ ::std::vector<Link>::iterator aLink (maListeners.begin());
+ ::std::vector<Link>::iterator aEnd (maListeners.end());
+ while (aLink!=aEnd)
+ {
+ aLink->Call (&rEvent);
+ ++aLink;
+ }
+}
+
+
+} // end of namespace sd
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