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diff --git a/sd/source/ui/framework/configuration/ConfigurationClassifier.cxx b/sd/source/ui/framework/configuration/ConfigurationClassifier.cxx
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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 "ConfigurationClassifier.hxx"
+
+#include <framework/FrameworkHelper.hxx>
+#include <com/sun/star/drawing/framework/XConfiguration.hpp>
+#include <sal/log.hxx>
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::drawing::framework;
+
+namespace sd::framework {
+
+ConfigurationClassifier::ConfigurationClassifier (
+ const Reference<XConfiguration>& rxConfiguration1,
+ const Reference<XConfiguration>& rxConfiguration2)
+ : mxConfiguration1(rxConfiguration1),
+ mxConfiguration2(rxConfiguration2)
+{
+}
+
+bool ConfigurationClassifier::Partition()
+{
+ maC1minusC2.clear();
+ maC2minusC1.clear();
+
+ PartitionResources(
+ mxConfiguration1->getResources(nullptr, OUString(), AnchorBindingMode_DIRECT),
+ mxConfiguration2->getResources(nullptr, OUString(), AnchorBindingMode_DIRECT));
+
+ return !maC1minusC2.empty() || !maC2minusC1.empty();
+}
+
+void ConfigurationClassifier::PartitionResources (
+ const css::uno::Sequence<Reference<XResourceId> >& rS1,
+ const css::uno::Sequence<Reference<XResourceId> >& rS2)
+{
+ ResourceIdVector aC1minusC2;
+ ResourceIdVector aC2minusC1;
+ ResourceIdVector aC1andC2;
+
+ // Classify the resources in the configurations that are not bound to
+ // other resources.
+ ClassifyResources(
+ rS1,
+ rS2,
+ aC1minusC2,
+ aC2minusC1,
+ aC1andC2);
+
+ SAL_INFO("sd.fwk", __func__ << ": copying resource ids to C1-C2");
+ CopyResources(aC1minusC2, mxConfiguration1, maC1minusC2);
+ SAL_INFO("sd.fwk", __func__ << ": copying resource ids to C2-C1");
+ CopyResources(aC2minusC1, mxConfiguration2, maC2minusC1);
+
+ // Process the unique resources that belong to both configurations.
+ for (const auto& rxResource : aC1andC2)
+ {
+ PartitionResources(
+ mxConfiguration1->getResources(rxResource, OUString(), AnchorBindingMode_DIRECT),
+ mxConfiguration2->getResources(rxResource, OUString(), AnchorBindingMode_DIRECT));
+ }
+}
+
+void ConfigurationClassifier::ClassifyResources (
+ const css::uno::Sequence<Reference<XResourceId> >& rS1,
+ const css::uno::Sequence<Reference<XResourceId> >& rS2,
+ ResourceIdVector& rS1minusS2,
+ ResourceIdVector& rS2minusS1,
+ ResourceIdVector& rS1andS2)
+{
+ // Find all elements in rS1 and place them in rS1minusS2 or rS1andS2
+ // depending on whether they are in rS2 or not.
+ for (const Reference<XResourceId>& rA1 : rS1)
+ {
+ bool bFound = std::any_of(rS2.begin(), rS2.end(),
+ [&rA1](const Reference<XResourceId>& rA2) {
+ return rA1->getResourceURL() == rA2->getResourceURL(); });
+
+ if (bFound)
+ rS1andS2.push_back(rA1);
+ else
+ rS1minusS2.push_back(rA1);
+ }
+
+ // Find all elements in rS2 that are not in rS1. The elements that are
+ // in both rS1 and rS2 have been handled above and are therefore ignored
+ // here.
+ for (const Reference<XResourceId>& rA2 : rS2)
+ {
+ bool bFound = std::any_of(rS1.begin(), rS1.end(),
+ [&rA2](const Reference<XResourceId>& rA1) {
+ return rA2->getResourceURL() == rA1->getResourceURL(); });
+
+ if ( ! bFound)
+ rS2minusS1.push_back(rA2);
+ }
+}
+
+void ConfigurationClassifier::CopyResources (
+ const ResourceIdVector& rSource,
+ const Reference<XConfiguration>& rxConfiguration,
+ ResourceIdVector& rTarget)
+{
+ // Copy all resources bound to the ones in aC1minusC2Unique to rC1minusC2.
+ for (const auto& rxResource : rSource)
+ {
+ const Sequence<Reference<XResourceId> > aBoundResources (
+ rxConfiguration->getResources(
+ rxResource,
+ OUString(),
+ AnchorBindingMode_INDIRECT));
+ const sal_Int32 nL (aBoundResources.getLength());
+
+ rTarget.reserve(rTarget.size() + 1 + nL);
+ rTarget.push_back(rxResource);
+
+ SAL_INFO("sd.fwk", __func__ << ": copying " <<
+ FrameworkHelper::ResourceIdToString(rxResource));
+
+ for (const Reference<XResourceId>& rBoundResource : aBoundResources)
+ {
+ rTarget.push_back(rBoundResource);
+ SAL_INFO("sd.fwk", __func__ << ": copying " <<
+ FrameworkHelper::ResourceIdToString(rBoundResource));
+ }
+ }
+}
+
+#if DEBUG_SD_CONFIGURATION_TRACE
+
+void ConfigurationClassifier::TraceResourceIdVector (
+ const char* pMessage,
+ const ResourceIdVector& rResources)
+{
+
+ SAL_INFO("sd.fwk", __func__ << ": " << pMessage);
+ for (const auto& rxResource : rResources)
+ {
+ OUString sResource (FrameworkHelper::ResourceIdToString(rxResource));
+ SAL_INFO("sd.fwk", __func__ << ": " << sResource);
+ }
+}
+
+#endif
+
+} // end of namespace sd::framework
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */