tdf#113271 Fix order of color's attributes import.

The order of import color is very important in case of more than one color attributes was provided.
This order (theme -> rgb -> indexed -> auto) is not documented
and was gathered experimentally based on MS Excel 2013.

Information about <fonts>:
https://msdn.microsoft.com/en-us/library/documentformat.openxml.spreadsheet.fonts(v=office.14).aspx

Information about font:
https://msdn.microsoft.com/en-us/library/ff531892(v=office.12).aspx
https://msdn.microsoft.com/en-us/library/documentformat.openxml.spreadsheet.font(v=office.14).aspx

More information about color class:
https://msdn.microsoft.com/en-us/library/documentformat.openxml.spreadsheet.color(v=office.14).aspx
https://msdn.microsoft.com/en-us/library/ff532831(v=office.12).aspx

Example:
With indexed auto, colour, rgb and them,
<color auto="1" theme="1" rgb="FFFFFF" indexed="62" />

The priority is as follows:
1. theme
2. rgb
3. indexed
4. auto

Change-Id: I7bb5ab7d7b7a52091f0130fd6f21bac44eca7408
Reviewed-on: https://gerrit.libreoffice.org/45281Reviewed-by: Eike Rathke <erack@redhat.com>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

sc/source/filter/oox/stylesbuffer.cxx

@@ -266,14 +266,16 @@ void Color::setIndexed( sal_Int32 nPaletteIdx, double fTint )
 
 void Color::importColor( const AttributeList& rAttribs )
 {
-    if( rAttribs.getBool( XML_auto, false ) )
-        setAuto();
+    // tdf#113271 The order of import color is very important in case of more than one color attributes was provided.
+    // This order (theme -> rgb -> indexed -> auto) is not documented and was gathered experimentally based on MS Excel 2013.
+    if( rAttribs.hasAttribute( XML_theme ) )
+        setTheme( rAttribs.getInteger( XML_theme, -1 ), rAttribs.getDouble( XML_tint, 0.0 ) );
     else if( rAttribs.hasAttribute( XML_rgb ) )
         setRgb( rAttribs.getIntegerHex( XML_rgb, API_RGB_TRANSPARENT ), rAttribs.getDouble( XML_tint, 0.0 ) );
-    else if( rAttribs.hasAttribute( XML_theme ) )
-        setTheme( rAttribs.getInteger( XML_theme, -1 ), rAttribs.getDouble( XML_tint, 0.0 ) );
     else if( rAttribs.hasAttribute( XML_indexed ) )
         setIndexed( rAttribs.getInteger( XML_indexed, -1 ), rAttribs.getDouble( XML_tint, 0.0 ) );
+    else if( rAttribs.getBool( XML_auto, false ) )
+        setAuto();
     else
     {
         OSL_FAIL( "Color::importColor - unknown color type" );