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Jason Childs authored
From: Jason Childs <oblivian@users.sourceforge.net> Date: Tue, 11 Aug 2009 23:55:20 -0400 Subject: [PATCH] Color transparency support Add alpha to Color structure to support transparency. This change tries to be a uninstrusive as possible, any and all references to Color have either been upgraded to read/write the new alpha parameter or they default to 1.0 to retain the existing functionality. If the plugin/importer/exporter does not support transparency, it will render the same as before. The cairo renderer has been updated to use alpha and the dia file format has been extended to understand both the new alpha value and support older files that don't have alpha for color values.
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