tdf#65353 filter fonts when embedding (unused, font script)

When embedding, the fonts are gathered and added to the ODF
document. This change in addition adds the functionallity to
embed used fonts only and filtering out of font scripts. When
embedding used fonts only, they are filtered depending on if
the style (referencing the font) is in use and in addition if
the font is used in direct formatting.

Change-Id: I1ba0066b1eb34bdde7247eeb63c1be5a91db984d
Reviewed-on: https://gerrit.libreoffice.org/57168
Tested-by: Jenkins
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>

4 files changed, 40 insertions, 1 deletions

diff --git a/include/xmloff/AutoStyleEntry.hxx b/include/xmloff/AutoStyleEntry.hxx
new file mode 100644
index 000000000000..c313aac15313
--- /dev/null
+++ b/include/xmloff/AutoStyleEntry.hxx
@@ -0,0 +1,32 @@
+/* -*- 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/.
+ *
+ */
+
+#ifndef INCLUDED_XMLOFF_AUTOSTYLEENTRY_HXX
+#define INCLUDED_XMLOFF_AUTOSTYLEENTRY_HXX
+
+#include <sal/config.h>
+#include <xmloff/dllapi.h>
+#include <memory>
+
+namespace xmloff
+{
+struct XMLOFF_DLLPUBLIC AutoStyleEntry
+{
+    sal_Int32 m_nFamily;
+    OUString m_aParentName;
+    OUString m_aName;
+    std::vector<std::pair<OUString, css::uno::Any>> m_aXmlProperties;
+};
+
+} // end xmloff
+
+#endif // INCLUDED_XMLOFF_AUTOSTYLEENTRY_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/include/xmloff/XMLFontAutoStylePool.hxx b/include/xmloff/XMLFontAutoStylePool.hxx
index 3380fc96d532..2354bcf8ce7d 100644
--- a/include/xmloff/XMLFontAutoStylePool.hxx
+++ b/include/xmloff/XMLFontAutoStylePool.hxx
@@ -26,6 +26,7 @@
 #include <tools/fontenum.hxx>
 #include <salhelper/simplereferenceobject.hxx>
 #include <set>
+#include <unordered_set>
 #include <unordered_map>
 #include <memory>
 
@@ -44,6 +45,8 @@ private:
 
     OUString embedFontFile(OUString const & rFileUrl, OUString const & rFamilyName);
 
+    std::unordered_set<OUString> getUsedFontList();
+
 protected:
     bool m_bEmbedUsedOnly;
     bool m_bEmbedLatinScript;
@@ -53,7 +56,6 @@ protected:
     SvXMLExport& GetExport() { return rExport; }
 
 public:
-
     XMLFontAutoStylePool( SvXMLExport& rExport, bool tryToEmbedFonts = false );
     virtual ~XMLFontAutoStylePool() override;
 
diff --git a/include/xmloff/txtparae.hxx b/include/xmloff/txtparae.hxx
index d06a335f1f83..7bf35536156f 100644
--- a/include/xmloff/txtparae.hxx
+++ b/include/xmloff/txtparae.hxx
@@ -111,6 +111,8 @@ class XMLOFF_DLLPUBLIC XMLTextParagraphExport : public XMLStyleExport
     XMLTextListsHelper* mpTextListsHelper;
     ::std::vector< std::unique_ptr<XMLTextListsHelper> > maTextListsHelperStack;
 
+    bool mbCollected;
+
     enum class FrameType { Text, Graphic, Embedded, Shape };
 public:
 
diff --git a/include/xmloff/xmlaustp.hxx b/include/xmloff/xmlaustp.hxx
index 7b270ce09724..1d708ad12806 100644
--- a/include/xmloff/xmlaustp.hxx
+++ b/include/xmloff/xmlaustp.hxx
@@ -24,6 +24,7 @@
 #include <xmloff/dllapi.h>
 #include <com/sun/star/xml/sax/XDocumentHandler.hpp>
 #include <xmloff/xmlprmap.hxx>
+#include <xmloff/AutoStyleEntry.hxx>
 #include <salhelper/simplereferenceobject.hxx>
 #include <memory>
 
@@ -116,6 +117,8 @@ public:
     void exportXML( sal_Int32 nFamily ) const;
 
     void ClearEntries();
+
+    std::vector<xmloff::AutoStyleEntry> GetAutoStyleEntries() const;
 };
 
 #endif // INCLUDED_XMLOFF_XMLAUSTP_HXX