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62 lines
1.5 KiB
62 lines
1.5 KiB
## -*- tcl -*- |
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## (C) 2010 Andreas Kupries <andreas_kupries@users.sourceforge.net> |
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## BSD Licensed |
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# # ## ### ##### ######## ############# ###################### |
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# |
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# diagram drawing package. |
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# |
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## |
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# # ## ### ##### ######## ############# ###################### |
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## Requisites |
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package require Tcl 8.5- ; # Want the nice things it brings |
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# (dicts, {*}, etc.) |
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package require diagram::core ; # Core drawing management |
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package require diagram::basic ; # Basic shapes. |
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package require snit ; # Object framework. |
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# # ## ### ##### ######## ############# ###################### |
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## Implementation |
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snit::type ::diagram { |
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# # ## ### ##### ######## ############# ###################### |
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## Public API :: Instance construction, and method routing |
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constructor {canvas args} { |
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install core using diagram::core ${selfns}::CORE $canvas |
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install basic using diagram::basic ${selfns}::BASIC $core |
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set mybaseline [$core snap] |
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if {![llength $args]} return |
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$core draw {*}$args |
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return |
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} |
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method reset {} { |
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$core drop |
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$core restore $mybaseline |
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return |
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} |
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delegate method * to core |
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# # ## ### ##### ######## ############# ###################### |
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## Instance data, just two components, |
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component core ; # Fundamental drawing engine and management |
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component basic ; # Fundamental shapes we can draw |
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variable mybaseline |
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## |
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# # ## ### ##### ######## ############# ###################### |
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} |
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# # ## ### ##### ######## ############# ###################### |
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## Ready |
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package provide diagram 1
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