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<!DOCTYPE html>\r\n<html>\r\n<head>\r\n<title>touch paint<\/title>\r\n<meta charset=\"UTF-8\">\r\n<meta name=\"viewport\" content=\"width=device-width, initial-scale=1, minimum-scale=1, maximum-scale=1, user-scalable=no\">\r\n<!-- meta\u30bf\u30b0\u3067\u3000\u30b9\u30de\u30db\u306e\u6319\u52d5\u3092\u5236\u9650\u3057\u3066\u3044\u308b -->\r\n<\/head>\r\n<body>\r\n<h1>Key2<\/h1>\r\n<canvas id=\"myCanvas\" width=\"300\" height=\"300\" style=\"border:1px solid #000000;\"><\/canvas>\r\n\r\n<script type=\"text\/javascript\">\r\nvar canvas;\r\nvar paintSwitch = false;\/\/pantSwitch\u3068\u3044\u3046\u30b9\u30a4\u30c3\u30c1\u3092\u4f5c\u3063\u3066\u3068\u308a\u3042\u3048\u305a\u6700\u521d\u306f\u30aa\u30d5\u306d\r\nvar oldX = 0;\/\/\u30af\u30ea\u30c3\u30af\u59cb\u3081\u305f\u4f4d\u7f6e\u306eX\u5ea7\u6a19\u3092\u5165\u308c\u308b\r\nvar oldY = 0;\/\/\u30af\u30ea\u30c3\u30af\u59cb\u3081\u305f\u4f4d\u7f6e\u306eY\u5ea7\u6a19\u3092\u5165\u308c\u308b\r\n\r\n\/\/---\u30b9\u30de\u30db\u306eOS\u53d6\u5f97\uff08PC\u7528\u3067\u306f\u4f7f\u308f\u306a\u3044\uff09\r\nvar ua = navigator.userAgent;\/\/User Agent\uff08\u307e\u3041\u6a5f\u7a2e\u540d\u307f\u305f\u3044\u306a\u306e\uff09\u3092\u53d6\u5f97\u3057\u3066\u5909\u6570ua\u306b\u4ee3\u5165\u3057\u306a\u3055\u3044\r\n\/\/---\r\n\r\n\r\n\/\/\u4ee5\u4e0biPhone\u306e\u6642\u306e\u6319\u52d5\uff08PC\u7528\u3067\u306f\u4f7f\u308f\u306a\u3044\uff09\r\nif (ua.indexOf(\"iPad\") >= 0 || ua.indexOf(\"iPhone\") >= 0 || ua.indexOf(\"iPod\") >= 0){\r\n\/\/\u7279\u306b\u6319\u52d5\u306f\u307e\u3060\u6c7a\u3081\u3066\u3044\u306a\u3044\r\n}\r\n\r\n\/\/\u4ee5\u4e0bAndroid\u306e\u6642\u306e\u6319\u52d5\uff08PC\u7528\u3067\u306f\u4f7f\u308f\u306a\u3044\uff09\r\nif (ua.indexOf(\"Android\") >= 0){\r\n\/\/\u7279\u306b\u6319\u52d5\u306f\u307e\u3060\u6c7a\u3081\u3066\u3044\u306a\u3044\r\n}\r\n\r\n\r\n\/\/---------\r\nwindow.onload = function() {\/\/\u3053\u308c\u3092\u8aad\u307f\u8fbc\u3093\u3060\u3089\r\n syokika();\/\/\u521d\u671f\u5316\u3068\u3044\u3046function\u3092\u5b9f\u884c\u3057\u3066\u306d\r\n};\r\n\r\nfunction syokika(){\/\/\u3067\uff0c\u3053\u308c\u304c\u521d\u671f\u5316\u306efunction\r\ncanvas = document.getElementById(\"myCanvas\");\r\nvar context = canvas.getContext(\"2d\");\r\ncanvas.addEventListener(\"mousemove\", draw, true);\/\/\u30de\u30a6\u30b9\u304c\u52d5\u3044\u305f\u3068\u304d\u6ce2draw\u3092\u3084\u308a\u306a\r\ncanvas.addEventListener(\"mousedown\", myMove, false);\/\/\u30de\u30a6\u30b9\u304c\u62bc\u3055\u308c\u305f\u6642\u306fmyMove\u3092\u3084\u308a\u306a\r\ncanvas.addEventListener(\"mouseup\", myMouseUp, false);\/\/\u30de\u30a6\u30b9\u304c\u4e0a\u304c\u3063\u305f\u3068\u304d\u306fmtMouseUp\u3092\u3084\u3063\u3068\u304b\u3081\r\n\r\n\r\n}\r\n\r\nfunction myMove(atai){\/\/\u30af\u30ea\u30c3\u30af\u958b\u59cb\u6642\u306b\u5b9f\u884c\u3055\u305b\u3066\u7dda\u306e\u63cf\u304d\u59cb\u3081\u306e\u5834\u6240\u3092oldX,oldY\u306b\u5165\u308c\u3061\u3083\u3046\u3088function\r\n paintSwitch = true;\r\n oldX = atai.clientX - canvas.offsetLeft;\/\/\u30aa\u30d5\u30bb\u30c3\u30c8\uff08\u305a\u308c\uff09\u306e\u4fee\u6b63\uff1d\u3088\u3053 clientX\u306e\u4ee3\u308f\u308a\u306bpageX\u3092\u4f7f\u3046\u3068\u304d\u3082\u3042\u308b\u3089\u3057\u3044\r\n oldY = atai.clientY - canvas.offsetTop;\/\/\u30aa\u30d5\u30bb\u30c3\u30c8\uff08\u305a\u308c\uff09\u306e\u4fee\u6b63\uff1d\u305f\u3066\u3000clientY\u306e\u4ee3\u308f\u308a\u306bpageY\u3092\u4f7f\u3046\u3068\u304d\u3082\u3042\u308b\u3089\u3057\u3044\r\n}\r\n\r\nfunction myMouseUp(){\r\n\t\tpaintSwitch = false;\/\/pantSwitch\u306f\u30aa\u30d5\u306d\r\n}\r\n\r\n\/\/setInterval(draw, 10);\/\/10msec\u8d77\u304d\u306b\u63cf\u3044\u3066\u306d\u3000\u4eca\u56de\u306f\u4f7f\u3044\u307e\u305b\u3093\r\n\r\nfunction draw(atai) {\r\nif (!paintSwitch) return;\r\n\tvar x = atai.clientX - canvas.offsetLeft;\r\n var y = atai.clientY - canvas.offsetTop;\r\n \/\/var can = document.getElementById(\"myCanvas\");\r\n var context = canvas.getContext(\"2d\");\r\n context.strokeStyle = \"rgba(255,0,0,1)\";\r\n context.lineWidth = 1;\r\n context.beginPath();\r\n context.moveTo(oldX, oldY);\r\n context.lineTo(x, y);\r\n context.stroke();\r\n context.closePath();\r\n oldX = x;\r\n oldY = y;\r\n}\r\n\r\n\r\n\r\n\/\/---\u30d5\u30a1\u30a4\u30eb\u306b\u66f8\u304d\u51fa\u3059\u3088\u3046\r\n\r\nfunction screenshot(){\r\n var png = canvas.toDataURL();\r\n document.getElementById(\"newImg\").src = png;\r\n}\r\n\/\/---\r\n\r\n<\/script>\r\n\r\n<form>\r\n<input type=\"button\" value=\"\u753b\u50cf\u306b\u5909\u63db\" onclick=\"screenshot()\">\r\n<\/form>\r\n<div><img id=\"newImg\"><\/div>\r\n<!-- \u3053\u306eDIV\u306eID\u3092\u63a2\u3057\u3066\u3053\u3053\u306b\u753b\u50cf\u3092\u5165\u308c\u308b -->\r\n<\/body>\r\n<\/html><\/pre>\n\u6b21\u306b\uff0c\u3053\u308c\u3092\u30b9\u30de\u30fc\u30c8\u30db\u30f3\u7248\u3067\u4f5c\u3063\u3066\u307f\u307e\u3059<\/p>\n","protected":false},"excerpt":{"rendered":"
\u304a\u7d75\u304b\u304d\u30c4\u30fc\u30eb\uff08PC\u7248\uff09\u3067\u3059 <!DOCTYPE html> <html> <head> <title>touch paint<\/title> <meta … \u7d9a\u304d\u3092\u8aad\u3080 HTML5\u5165\u9580\u305d\u306e14-\u304a\u7d75\u304b\u304d\u30c4\u30fc\u30eb2<\/span>