37bdda1999-05-18Per Hedbor #include <module.h> inherit "module"; inherit "roxenlib"; roxen.ImageCache the_cache; array register_module() { return ({ MODULE_PARSER, "Image converter", "Provides a tag 'cimg'. Usage: " "<cimg src=indata format=outformat [quant=numcolors] [img args]>", 0,1 }); } void start() { the_cache = roxen.ImageCache( "cimg", generate_image ); } mapping generate_image( mapping args, RequestID id ) { return roxen.low_load_image( args->src, id ); } mapping find_internal( string f, RequestID id ) { return the_cache->http_file_answer( f, id ); } string tag_cimg( string t, mapping args, RequestID id ) { mapping a = ([ "src":fix_relative( args->src, id ), "quant":args->quant, "format":args->format ]); args -= a; args->src = query_internal_location()+the_cache->store( a ); if( mapping size = the_cache->metadata( a, id, 1 ) ) { // image in cache (1 above prevents generation on-the-fly) args->width = size->xsize; args->height = size->ysize; } return make_tag( "img", args ); }