diff options
Diffstat (limited to 'templates/js/code39.js')
-rw-r--r-- | templates/js/code39.js | 148 |
1 files changed, 0 insertions, 148 deletions
diff --git a/templates/js/code39.js b/templates/js/code39.js deleted file mode 100644 index 6028854..0000000 --- a/templates/js/code39.js +++ /dev/null @@ -1,148 +0,0 @@ -var encodings = { - '0':'bwbWBwBwb', - '1':'BwbWbwbwB', - '2':'bwBWbwbwB', - '3':'BwBWbwbwb', - '4':'bwbWBwbwB', - '5':'BwbWBwbwb', - '6':'bwBWBwbwb', - '7':'bwbWbwBwB', - '8':'BwbWbwBwb', - '9':'bwBWbwBwb', - 'A':'BwbwbWbwB', - 'B':'bwBwbWbwB', - 'C':'BwBwbWbwb', - 'D':'bwbwBWbwB', - 'E':'BwbwBWbwb', - 'F':'bwBwBWbwb', - 'G':'bwbwbWBwB', - 'H':'BwbwbWBwb', - 'I':'bwBwbWBwb', - 'J':'bwbwBWBwb', - 'K':'BwbwbwbWB', - 'L':'bwBwbwbWB', - 'M':'BwBwbwbWb', - 'N':'bwbwBwbWB', - 'O':'BwbwBwbWb', - 'P':'bwBwBwbWb', - 'Q':'bwbwbwBWB', - 'R':'BwbwbwBWb', - 'S':'bwBwbwBWb', - 'T':'bwbwBwBWb', - 'U':'BWbwbwbwB', - 'V':'bWBwbwbwB', - 'W':'BWBwbwbwb', - 'X':'bWbwBwbwB', - 'Y':'BWbwBwbwb', - 'Z':'bWBwBwbwb', - '-':'bWbwbwBwB', - '.':'BWbwbwBwb', - ' ':'bWBwbwBwb', - '$':'bWbWbWbwb', - '/':'bWbWbwbWb', - '+':'bWbwbWbWb', - '%':'bwbWbWbWb', - '*':'bWbwBwBwb' -} - -var height = 100; -var paintText = true; -var canvas; -var ctx; - -var code39_init = function() { - canvas = $('#barcode')[0]; - ctx = canvas.getContext("2d"); -} - -var code39_checksum = function(barcode) { - var charset = "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ-. $/+%"; - var subtotal = 0; - var c; - - for (c in barcode) { - subtotal += charset.indexOf(barcode[c]); - } - - return charset[subtotal%43]; -} - -var code39_draw = function(text, add_checksum) { - var showtext = text; - - if(add_checksum) { - text += code39_checksum(text); - showtext += " "; - } - - text = "*" + text + "*"; - showtext = " " + showtext + " "; - - var txtLength = text.length; - var totalWidth = txtLength*15 +txtLength - 1; - cwidth = totalWidth+30; - - ctx.clearRect(0,0,canvas.width,canvas.height); - - canvas.style.height = canvas.height = height; - canvas.style.width = canvas.width = cwidth ; - ctx.fillStyle = "rgb(255,255,255)"; - ctx.fillRect(0,0,canvas.width,canvas.height); - - var i,j; - - /* Rounding to prevent antialising */ - var currentx = Math.round(cwidth/2-totalWidth/2), currenty = 20; - - /* wides are 3x width of narrow */ - var widewidth = 3; - - var barheight = 80; - - if(paintText) { - barheight -= 20; - } - - for(i=0;i<text.length;i++) { - var code = encodings[text[i]]; - if (!code) { - code = encodings['-']; - } - - for(j=0;j<code.length;j++) { - if (j%2==0) { - /* black */ - ctx.fillStyle = "rgb(0,0,0)"; - } else { - /* white */ - ctx.fillStyle = "rgb(255,255,255)"; - } - - if (code.charCodeAt(j)<91) { - /* wide */ - ctx.fillRect (currentx, currenty, widewidth, barheight); - currentx += 3; - } else { - /* narrow */ - ctx.fillRect (currentx, currenty, 1, barheight); - currentx += 1; - } - - if (paintText && (j==5) && (typeof ctx.fillText == 'function')) { - ctx.fillStyle = "rgb(0,0,0)"; - ctx.fillText(showtext[i], currentx, 90); - } - } - - if (i!=text.length-1) { - /* draw narrow white as divider */ - ctx.fillStyle = "rgb(255,255,255)"; - ctx.fillRect (currentx, currenty, 1, barheight); - currentx += 1; - } - } -} - -var code39_url = function() { - return canvas.toDataURL(); -} |