add separate MS PowerPoint 3 filter (libmwaw)

Change-Id: I9f07e6d363387fc47f187f6635f489f8f8237f77

filter/Configuration_filter.mk

@@ -601,6 +601,7 @@ $(eval $(call filter_Configuration_add_types,fcfg_langpack,fcfg_impress_types.xc
 	impress_OOXML_Presentation_AutoPlay \
 	impress_ClarisWorks \
 	MWAW_Presentation \
+	impress_PowerPoint3 \
 ))
 
 $(eval $(call filter_Configuration_add_filters,fcfg_langpack,fcfg_impress_filters.xcu,filter/source/config/fragments/filters,\
@@ -625,6 +626,7 @@ $(eval $(call filter_Configuration_add_filters,fcfg_langpack,fcfg_impress_filter
 	impress_OOXML_AutoPlay \
 	ClarisWorks_Impress \
 	MWAW_Presentation \
+	PowerPoint3 \
 ))
 
 # fcfg_chart

filter/source/config/fragments/filters/PowerPoint3.xcu

+<!--
+ * 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/.
+-->
+
+<node oor:name="PowerPoint 3" oor:op="replace">
+    <prop oor:name="Flags">
+        <value>IMPORT ALIEN 3RDPARTYFILTER</value>
+    </prop>
+    <prop oor:name="FilterService">
+        <value>com.sun.star.comp.Impress.MWAWPresentationImportFilter</value>
+    </prop>
+    <prop oor:name="UIName">
+        <value xml:lang="en-US">Microsoft PowerPoint 3</value>
+    </prop>
+    <prop oor:name="FileFormatVersion">
+        <value>0</value>
+    </prop>
+    <prop oor:name="Type">
+        <value>impress_PowerPoint3</value>
+    </prop>
+    <prop oor:name="DocumentService">
+        <value>com.sun.star.presentation.PresentationDocument</value>
+    </prop>
+</node>

filter/source/config/fragments/types/impress_PowerPoint3.xcu

+<!--
+ * 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/.
+-->
+
+<node oor:name="impress_PowerPoint3" oor:op="replace">
+    <prop oor:name="DetectService">
+        <value>com.sun.star.comp.Impress.MWAWPresentationImportFilter</value>
+    </prop>
+    <prop oor:name="Extensions">
+        <value>ppt</value>
+    </prop>
+    <prop oor:name="PreferredFilter">
+        <value>PowerPoint 3</value>
+    </prop>
+    <prop oor:name="UIName">
+        <value>Microsoft PowerPoint 3</value>
+    </prop>
+</node>

writerperfect/source/impress/MWAWPresentationImportFilter.cxx

@@ -58,6 +58,9 @@ bool MWAWPresentationImportFilter::doDetectFormat(librevenge::RVNGInputStream &r
             case MWAWDocument::MWAW_T_CLARISWORKS:
                 rTypeName = "impress_ClarisWorks";
                 break;
+            case MWAWDocument::MWAW_T_RESERVED9:
+                rTypeName = "impress_PowerPoint3";
+                break;
             default:
                 rTypeName = "MWAW_Presentation";
                 break;