1 files changed, 126 insertions, 0 deletions
diff --git a/svx/source/svdraw/svdviter.cxx b/svx/source/svdraw/svdviter.cxx
new file mode 100644
index 0000000000..65450efb42
--- /dev/null
+++ b/svx/source/svdraw/svdviter.cxx
@@ -0,0 +1,126 @@
+/* -*- 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 <svx/svdviter.hxx>
+#include <svx/svdobj.hxx>
+#include <svx/svdpage.hxx>
+#include <svx/svdmodel.hxx>
+#include <svx/svdview.hxx>
+#include <svx/svdpagv.hxx>
+#include <svx/svdsob.hxx>
+
+static bool ImpCheckPageView(const SdrPage* pPage, const SdrObject* pObject, SdrPageView const* pPV)
+{
+    if (!pPage)
+        return true;
+
+    bool bMaster(pPage->IsMasterPage());
+    SdrPage* pPg = pPV->GetPage();
+
+    if (pPg == pPage)
+    {
+        if (pObject)
+        {
+            // Looking for an object? First, determine if it visible in
+            // this PageView.
+            return pObject->isVisibleOnAnyOfTheseLayers(pPV->GetVisibleLayers());
+        }
+        else
+        {
+            return true;
+        }
+    }
+    else if (bMaster && (!pObject || !pObject->IsNotVisibleAsMaster()))
+    {
+        if (pPg->TRG_HasMasterPage())
+        {
+            SdrPage& rMasterPage = pPg->TRG_GetMasterPage();
+
+            if (&rMasterPage == pPage)
+            {
+                // the page we're looking for is a master page in this PageView
+                if (pObject)
+                {
+                    // Looking for an object? First, determine if it visible in
+                    // this PageView.
+                    SdrLayerIDSet aObjLay = pPV->GetVisibleLayers();
+                    aObjLay &= pPg->TRG_GetMasterPageVisibleLayers();
+                    if (pObject->isVisibleOnAnyOfTheseLayers(aObjLay))
+                    {
+                        return true;
+                    } // else, look at the next master page of this page...
+                }
+                else
+                {
+                    return true;
+                }
+            }
+        }
+    }
+
+    // master page forbidden or no fitting master page found
+    return false;
+}
+
+namespace SdrViewIter
+{
+void ForAllViews(const SdrPage* pPage, std::function<void(SdrView*)> f)
+{
+    if (!pPage)
+        return;
+    const SdrModel* pModel = &pPage->getSdrModelFromSdrPage();
+
+    pModel->ForAllListeners([&pPage, &f](SfxListener* pLs) {
+        if (!pLs->IsSdrView())
+            return false;
+        SdrView* pCurrentView = static_cast<SdrView*>(pLs);
+        SdrPageView* pPV = pCurrentView->GetSdrPageView();
+
+        if (pPV && ImpCheckPageView(pPage, nullptr, pPV))
+        {
+            f(pCurrentView);
+        }
+        return false;
+    });
+}
+
+void ForAllViews(const SdrObject* pObject, std::function<void(SdrView*)> f)
+{
+    if (!pObject)
+        return;
+    const SdrModel* pModel = &pObject->getSdrModelFromSdrObject();
+    const SdrPage* pPage = pObject->getSdrPageFromSdrObject();
+    if (!pPage)
+        return;
+
+    pModel->ForAllListeners([&pPage, &pObject, &f](SfxListener* pLs) {
+        if (!pLs->IsSdrView())
+            return false;
+        SdrView* pCurrentView = static_cast<SdrView*>(pLs);
+        SdrPageView* pPV = pCurrentView->GetSdrPageView();
+
+        if (pPV && ImpCheckPageView(pPage, pObject, pPV))
+        {
+            f(pCurrentView);
+        }
+        return false;
+    });
+}
+}
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */