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panorama-ss.r

REBOL [ Title: "'Panoramatic image' style" Date: 22-May-2002/22:28:36+2:00 Version: 1.0.0 File: %panorama-ss.r Author: "Oldes" Purpose: "Style for scrolling (panoramatic) images" Comment: { ^-^-Make sure you have loaded the 'capsule' style as well! ^-^-(http://www.sweb.cz/r-mud/styles/capsules.r)} Email: %oliva--david--seznam--cz library: [ level: 'advanced platform: none type: 'module domain: 'VID tested-under: none support: none license: none see-also: none ] ] panorama-ss: stylize [ panorama: box 320x120 with [ rate: 30 m-pos: 0 mov: 1 p-img: w: w2: ofs1: ofs2: old-rate: none effect: [draw [image ofs1 p-img image ofs2 p-img]] init: [ p-img: first facets switch type?/word p-img [ file! [p-img: load p-img] url! [p-img: load read-thru p-img] ] w: p-img/size/x w2: 2 * w ofs1: 0x0 ofs2: to-pair reduce [w 0] ] feel/engage: func [face action event][ switch action [ down [face/m-pos: event/offset/x face/mov: 0 if face/rate [face/old-rate: face/rate] face/rate: none ] over [ face/mov: event/offset/x - face/m-pos face/rate: face/old-rate show face ] time [face/my-draw face] ] ] my-draw: func[face][ ofs1/x: ofs1/x + mov ofs2/x: ofs2/x + mov either mov > 0 [ if ofs1/x >= w [ofs1/x: ofs1/x - w2] if ofs2/x >= w [ofs2/x: ofs2/x - w2] ][ if (0 - ofs1/x) >= w [ ofs1/x: ofs1/x + w2] if (0 - ofs2/x) >= w [ ofs2/x: ofs2/x + w2] ] show face ] ] ] comment {;usage view layout [ styles panorama-ss origin 0x0 panorama http://127.0.0.1/img/podlaha.gif 320x95 ] }
halt ;; to terminate script if DO'ne from webpage
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  • (oliva:david:seznam:cz)