1 files changed, 117 insertions, 0 deletions
diff --git a/sw/source/core/text/atrhndl.hxx b/sw/source/core/text/atrhndl.hxx
new file mode 100644
index 000000000..851615325
--- /dev/null
+++ b/sw/source/core/text/atrhndl.hxx
@@ -0,0 +1,117 @@
+/* -*- 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 .
+ */
+
+#pragma once
+#define NUM_ATTRIBUTE_STACKS 45
+
+#include <vector>
+#include <swfntcch.hxx>
+
+class SwTextAttr;
+class SwAttrSet;
+class IDocumentSettingAccess;
+class SwViewShell;
+class SfxPoolItem;
+extern const sal_uInt8 StackPos[];
+
+/**
+ * Used by Attribute Iterators to organize attributes on stacks to
+ * find the valid attribute in each category
+ */
+class SwAttrHandler
+{
+private:
+    std::vector<const SwTextAttr*> m_aAttrStack[NUM_ATTRIBUTE_STACKS]; // stack collection
+    const SfxPoolItem* m_pDefaultArray[ NUM_DEFAULT_VALUES ];
+    const IDocumentSettingAccess* m_pIDocumentSettingAccess;
+    const SwViewShell* m_pShell;
+
+    // This is the base font for the paragraph. It is stored in order to have
+    // a template, if we have to restart the attribute evaluation
+    std::optional<SwFont> m_oFnt;
+
+    bool m_bVertLayout;
+    bool m_bVertLayoutLRBT;
+
+    const SwTextAttr* GetTop(sal_uInt16 nStack);
+    void RemoveFromStack(sal_uInt16 nWhich, const SwTextAttr& rAttr);
+
+    // change font according to pool item
+    void FontChg(const SfxPoolItem& rItem, SwFont& rFnt, bool bPush );
+
+    // push attribute to specified stack, returns true, if attribute has
+    // been pushed on top of stack (important for stacks containing different
+    // attributes with different priority and redlining)
+    bool Push( const SwTextAttr& rAttr, const SfxPoolItem& rItem );
+
+    // apply top attribute on stack to font
+    void ActivateTop( SwFont& rFnt, sal_uInt16 nStackPos );
+
+public:
+    // Ctor
+    SwAttrHandler();
+    ~SwAttrHandler();
+
+    // set default attributes to values in rAttrSet or from cache
+    void Init( const SwAttrSet& rAttrSet,
+               const IDocumentSettingAccess& rIDocumentSettingAccess );
+    void Init( const SfxPoolItem** pPoolItem, const SwAttrSet* pAttrSet,
+               const IDocumentSettingAccess& rIDocumentSettingAccess,
+               const SwViewShell* pShell, SwFont& rFnt,
+               bool bVertLayout, bool bVertLayoutLRBT );
+
+    bool IsVertLayout() const { return m_bVertLayout; }
+
+    // remove everything from internal stacks, keep default data
+    void Reset( );
+
+    // insert specified attribute and change font
+    void PushAndChg( const SwTextAttr& rAttr, SwFont& rFnt );
+
+    // remove specified attribute and reset font
+    void PopAndChg( const SwTextAttr& rAttr, SwFont& rFnt );
+    void Pop( const SwTextAttr& rAttr );
+
+    // apply script dependent attributes
+    // void ChangeScript( SwFont& rFnt, const sal_uInt8 nScr );
+
+    // do not call these if you only used the small init function
+    inline void ResetFont( SwFont& rFnt ) const;
+    inline const SwFont* GetFont() const;
+
+    void GetDefaultAscentAndHeight(SwViewShell const * pShell,
+                                   OutputDevice const & rOut,
+                                   sal_uInt16& nAscent,
+                                   sal_uInt16& nHeight) const;
+};
+
+inline void SwAttrHandler::ResetFont( SwFont& rFnt ) const
+{
+    OSL_ENSURE(m_oFnt, "ResetFont without a font");
+    if (m_oFnt)
+        rFnt = *m_oFnt;
+};
+
+inline const SwFont* SwAttrHandler::GetFont() const
+{
+    return m_oFnt ? &*m_oFnt : nullptr;
+};
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */