Allow 'textual links' on icon theme packages

This would allow use of better icon names ( fdo#30425 ) and
minimizes space size needed by reuses of same icons bitmaps
with different filenames.

Icon packages shoud have a file named "links.txt" on root folder
in order to achieve that. It binds a name of a 'virtual' file to
an existing one, to avoid duplicates.

This file should contain one or more lines like this:
path/for/fakefile_that_reuse_a_bitmap.png path/for/existing_one.png

Implemented as discussed in:
http://lists.freedesktop.org/archives/libreoffice/2013-April/049650.html

Change-Id: Ia65a1ba18f93297fae47fa520104821f6f336694
Signed-off-by: Rodolfo Ribeiro Gomes <rodolforg@gmail.com>
Reviewed-on: https://gerrit.libreoffice.org/3953
Reviewed-by: Fridrich Strba <fridrich@documentfoundation.org>
Tested-by: Fridrich Strba <fridrich@documentfoundation.org>

1 files changed, 7 insertions, 0 deletions

diff --git a/vcl/inc/impimagetree.hxx b/vcl/inc/impimagetree.hxx
index d22e770e1016..11c003e2b079 100644
--- a/vcl/inc/impimagetree.hxx
+++ b/vcl/inc/impimagetree.hxx
@@ -72,12 +72,15 @@ private:
         OUString, bool, OUStringHash > CheckStyleCache;
     typedef boost::unordered_map<
         OUString, std::pair< bool, BitmapEx >, OUStringHash > IconCache;
+    typedef boost::unordered_map<
+        OUString, OUString, OUStringHash > IconLinkCache;
 
     OUString m_style;
     Path m_path;
     CheckStyleCache m_checkStyleCache;
     IconCache m_iconCache;
     bool m_cacheIcons;
+    IconLinkCache m_iconLinkCache;
 
     void setStyle(OUString const & style );
 
@@ -87,6 +90,10 @@ private:
     bool iconCacheLookup( OUString const & name, bool localized, BitmapEx & bitmap );
 
     bool find(std::vector< OUString > const & paths, BitmapEx & bitmap );
+
+    void loadImageLinks();
+    void parseLinkFile(boost::shared_ptr< SvStream > stream);
+    OUString const & getRealImageName(OUString const & name);
 };
 
 typedef salhelper::SingletonRef< ImplImageTree > ImplImageTreeSingletonRef;