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DOCTYPE html html lang en head meta charset UTF 8 meta name viewport content width device width initial scale 1 0 meta http equiv X UA Compatible content ie edge title Dynamic and Resizable Tee Designer title style drawing area position absolute top 60px left 122px z index 10 width 200px height 400px canvas container width 200px height 400px position relative user select none tshirt div width 452px height 548px position relative background color fff canvas position absolute width 200px height 400px left 0px top 0px user select none cursor default style head body script src https cdnjs cloudflare com ajax libs dom to image 2 6 0 dom to image js script Create the container of the tool div id tshirt div Initially the image will have the background tshirt that has transparency So we can simply update the color with CSS or JavaScript dinamically img id tshirt backgroundpicture src https notebook xbdev net var images tshirt png div id drawingArea class drawing area div class canvas container canvas id tshirt canvas width 200 height 400 canvas div div div p To remove a loaded picture on the T Shirt select it and press the kbd DEL kbd key p The select that will allow the user to pick one of the static designs br label for tshirt design T Shirt Design label select id tshirt design option value Select one of our designs option option value https notebook xbdev net var images batman png Batman option select The Select that allows the user to change the color of the T Shirt br br label for tshirt color T Shirt Color label select id tshirt color You can add any color with a new option and definings its hex code option value fff White option option value 000 Black option option value f00 Red option option value 008000 Green option option value ff0 Yellow option select br br label for tshirt custompicture Upload your own design label input type file id tshirt custompicture br br button onclick downloadpng download png button Include Fabric js in the page script src https cdnjs cloudflare com ajax libs fabric js 5 2 4 fabric js script script let canvas new fabric Canvas tshirt canvas function updateTshirtImage imageURL fabric Image fromURL imageURL function img img scaleToHeight 300 img scaleToWidth 300 canvas centerObject img canvas add img canvas renderAll Update the TShirt color according to the selected color by the user document getElementById tshirt color addEventListener change function document getElementById tshirt div style backgroundColor this value false Update the TShirt color according to the selected color by the user document getElementById tshirt design addEventListener change function Call the updateTshirtImage method providing as first argument the URL of the image provided by the select updateTshirtImage this value false When the user clicks on upload a custom picture document getElementById tshirt custompicture addEventListener change function e var reader new FileReader reader onload function event var imgObj new Image imgObj src event target result When the picture loads create the image in Fabric js imgObj onload function var img new fabric Image imgObj img scaleToHeight 300 img scaleToWidth 300 canvas centerObject img canvas add img canvas renderAll If the user selected a picture load it if e target files 0 reader readAsDataURL e target files 0 false When the user selects a picture that has been added and press the DEL key The object will be removed document addEventListener keydown function e var keyCode e keyCode if keyCode 46 console log Removing selected element on Fabric js on DELETE key canvas remove canvas getActiveObject false function download imgtype let canvas document getElementById canvas let dt canvas toDataURL image png let dt canvas toDataURL image imgtype let a document createElement a a href dt replace data image data application octet stream let randname Math random 1 toString 36 substring 7 a download pattern randname imgtype a click function downloadpng Define as node the T Shirt Div var node document getElementById tshirt div domtoimage toPng node then function dataUrl Print the data URL of the picture in the Console console log dataUrl let imgtype png jpg You can for example to test add the image at the end of the document var img new Image img src dataUrl document body appendChild img let a document createElement a a href dataUrl replace data image data application octet stream let randname Math random 1 toString 36 substring 7 a download pattern randname imgtype a click catch function error console error oops something went wrong error script body html

300 canvas centerObject img canvas add img canvas renderAll Update the TShirt color according to the selected color by the user document getElementById tshirt color addEventListener change function document getElementById tshirt div style backgroundColor this value false Update the TShirt color according to the selected color by the user document getElementById tshirt design addEventListener change function Call the updateTshirtImage method providing as first argument the URL of the image provided by the select updateTshirtImage this value false When the user clicks on upload a custom picture document getElementById tshirt custompicture addEventListener change function e var reader new FileReader reader onload function event var imgObj new Image imgObj src event target result When the picture loads create the image in Fabric js imgObj onload function var img new fabric Image imgObj img scaleToHeight 300 img scaleToWidth 300 canvas centerObject img canvas add img canvas renderAll If the user selected a picture load it if e target files 0 reader readAsDataURL e target files 0 false When the user selects a picture that has been added and press the DEL key The object will be removed document addEventListener keydown function e var keyCode e keyCode if keyCode 46 console log Removing selected element on Fabric js on DELETE key canvas remove canvas getActiveObject false function download imgtype let canvas document getElementById canvas let dt canvas toDataURL image png let dt canvas toDataURL image imgtype let a document createElement a a href dt replace data image data application octet stream let randname Math random 1 toString 36 substring 7 a download pattern randname imgtype a click function downloadpng Define as node the T Shirt Div var node document getElementById tshirt div domtoimage toPng node then function dataUrl Print the data URL of the picture in the Console console log dataUrl let imgtype png jpg You can for example to test add the image at the end of the document var img new Image img src dataUrl document body appendChild img let a document createElement a a href dataUrl replace data image data application octet stream let randname Math random 1 toString 36 substring 7 a download pattern randname imgtype a click catch function error console error oops something went wrong error script body html

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