GUI for SANE scanner made with NodeRed

NR_Scan_flow.json

[{"id":"974898cd.7d1728","type":"tab","label":"Scan ","disabled":false,"info":""},{"id":"def002f2.e31fc","type":"ui_text","z":"974898cd.7d1728","group":"2cc923ff.1cf05c","order":1,"width":6,"height":3,"name":"Selected options","label":"<h1>Selected Options<h1/>","format":"{{msg.payload}}","layout":"col-center","x":830,"y":120,"wires":[]},{"id":"13bb8db9.aaa432","type":"ui_dropdown","z":"974898cd.7d1728","name":"Resolution","label":"&nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp <b> Resolution<b/>","tooltip":"","place":"Select option","group":"2cc923ff.1cf05c","order":4,"width":0,"height":0,"passthru":true,"multiple":false,"options":[{"label":"Auto","value":"Auto","type":"str"},{"label":"75","value":75,"type":"num"},{"label":"150","value":150,"type":"num"},{"label":"300","value":300,"type":"num"},{"label":"600","value":600,"type":"num"},{"label":"1200","value":1200,"type":"num"}],"payload":"","topic":"resolution","x":290,"y":100,"wires":[["bec26866.40d118"]]},{"id":"bec26866.40d118","type":"function","z":"974898cd.7d1728","name":"New scan settings","func":"\nswitch(msg.topic) {\n  case \"resolution\":\n    flow.set(\"resolution\", msg.payload)\n    break;\n  case \"mode\":\n    flow.set(\"mode\", msg.payload)\n    break;\n  default:\n    // code block\n}\n\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","x":510,"y":120,"wires":[["35030885.54b998"]]},{"id":"58134beb.7dddf4","type":"ui_dropdown","z":"974898cd.7d1728","name":"Mode","label":" &nbsp &nbsp &nbsp  &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp <b>Mode<b/> &nbsp &nbsp &nbsp &nbsp &nbsp","tooltip":"","place":"Select option","group":"2cc923ff.1cf05c","order":5,"width":0,"height":0,"passthru":true,"multiple":false,"options":[{"label":"Auto","value":"auto","type":"str"},{"label":"Color","value":"Color","type":"str"},{"label":"Gray","value":"Gray","type":"str"},{"label":"Line Art","value":"Lineart","type":"str"}],"payload":"","topic":"mode","x":270,"y":160,"wires":[["bec26866.40d118"]]},{"id":"20d6e226.ab9cee","type":"inject","z":"974898cd.7d1728","name":"Initialize","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":true,"onceDelay":"1","topic":"","payload":"","payloadType":"date","x":300,"y":60,"wires":[["e8dde1df.2068c","6214cf0d.40f21"]]},{"id":"e8dde1df.2068c","type":"function","z":"974898cd.7d1728","name":"Default scan settings","func":"\nflow.set(\"resolution\", 300)\nflow.set(\"mode\", \"auto\")\n\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","x":520,"y":60,"wires":[["35030885.54b998"]]},{"id":"35030885.54b998","type":"function","z":"974898cd.7d1728","name":"Display scan settings","func":"\nlet resolution = flow.get(\"resolution\")\nlet mode = flow.get(\"mode\")\n\nmsg.payload = \"<br/>Resolution: \" + resolution + \"<br/> Mode: &nbsp &nbsp &nbsp &nbsp &nbsp &nbsp\" + mode\n\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","x":840,"y":60,"wires":[["def002f2.e31fc"]]},{"id":"5bf58978.68d378","type":"function","z":"974898cd.7d1728","name":"Issue scan command","func":"if(msg.payload == \"scan\") {\n\n    let date = new Date();\n    let fileNo = (date.toLocaleTimeString()).replace(/:/g, \"-\");\n    let resolution = flow.get(\"resolution\");\n    let mode = flow.get(\"mode\");\n\n    msg.payload = \"sudo scanimage --resolution \" + resolution + \" --mode \" + mode + \" > scan-\" + fileNo + \".ppm\"\n\nreturn msg;\n\n}\nelse {\n\n    return msg[null];    \n}\n\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","x":840,"y":220,"wires":[["213753c7.88084c"]]},{"id":"7abd5cbc.1af274","type":"function","z":"974898cd.7d1728","name":"Set \"Please wait\" + Red","func":"\nif(msg.payload == \"scan\") {\n\n    msg.background = \"red\"\n    msg.topic = \"Please wait !\"\n\nreturn msg;\n\n}\nelse {\n\n    return msg[null];    \n}\n\nreturn msg;","outputs":1,"noerr":0,"initialize":"","finalize":"","x":530,"y":160,"wires":[["5d15875c.71e5a8"]]},{"id":"6214cf0d.40f21","type":"change","z":"974898cd.7d1728","name":"Set \"Press for scan\" + green","rules":[{"t":"set","p":"background","pt":"msg","to":"#097479","tot":"str"},{"t":"set","p":"topic","pt":"msg","to":"Press for Scan","tot":"str"}],"action":"","property":"","from":"","to":"","reg":false,"x":540,"y":220,"wires":[["5d15875c.71e5a8"]]},{"id":"213753c7.88084c","type":"exec","z":"974898cd.7d1728","command":"","addpay":true,"append":"","useSpawn":"false","timer":"","oldrc":false,"name":"Execute","x":300,"y":280,"wires":[[],["f898b458.1c8078"],["6214cf0d.40f21"]]},{"id":"f898b458.1c8078","type":"ui_toast","z":"974898cd.7d1728","position":"dialog","displayTime":"3","highlight":"","sendall":true,"outputs":1,"ok":"OK","cancel":"","raw":false,"topic":"","name":"Error display","x":490,"y":280,"wires":[[]]},{"id":"3a4e9af0.b4bf56","type":"ui_text","z":"974898cd.7d1728","group":"2cc923ff.1cf05c","order":3,"width":0,"height":0,"name":"Change options","label":"<h1>Change Options<h1/>","format":"{{msg.payload}}","layout":"col-center","x":820,"y":280,"wires":[]},{"id":"5d15875c.71e5a8","type":"ui_template","z":"974898cd.7d1728","group":"2cc923ff.1cf05c","name":"Scan","order":2,"width":"6","height":"3","format":"<style>\n    .filled { height: 100%; }\n    .rounded {border-radius: 35px;}\n    .bigfont {font-size: 28px;}\n    .bold {font-weight: bold;}\n    .bordercolor {border-color: white;}\n    .borderstyle {border-style: solid;}\n    .borderwidth {border-width:10px;}\n</style>\n<md-button \n\tclass=\"filled rounded bigfont bold bordercolor borderstyle borderwidth\"\n\tstyle=\"{{'background-color:'+ msg.background}}\"\n\tng-click=\"send({payload: 'scan'})\">\n\t<div ng-bind-html= \"msg.topic\"></div>\n</md-button>","storeOutMessages":false,"fwdInMessages":false,"resendOnRefresh":true,"templateScope":"local","x":790,"y":160,"wires":[["5bf58978.68d378","7abd5cbc.1af274"]]},{"id":"2cc923ff.1cf05c","type":"ui_group","name":"Col_1","tab":"5639bad4.c180a4","order":1,"disp":false,"width":"6","collapse":false},{"id":"5639bad4.c180a4","type":"ui_tab","name":"Scanning","icon":"dashboard","order":6,"disabled":false,"hidden":false}]