基本信息
源码名称：js电子签名示例源码(可设置字体颜色背景/可保存成图片)
源码大小：0.08M
文件格式：.zip
开发语言：js
更新时间：2020-04-20
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源码介绍
var WritingPad = function () {
var current = null;
$(function () {
initHtml();
initTable();
initSignature();
//if ($(".modal")) {
// $(".modal").modal("toggle");
//} else {
// alert("没用手写面板");
//}
$(document).on("click", "#myClose,.close", null, function () {
$('#mymodal').modal('hide');
$("#mymodal").remove();
});
$(document).on("click", "#mySave", null, function () {
var myImg = $('#myImg').empty();
var dataUrl = $('.js-signature').jqSignature('getDataURL');
var img = $('<img>').attr('src', dataUrl);
$(myImg).append($('<p>').text("图片保存在这里"));
$(myImg).append(img);
});
$(document).on("click", "#myEmpty", null, function () {
$('.js-signature').jqSignature('clearCanvas');
});
$(document).on("click", "#myBackColor", null, function () {
$('#colorpanel').css('left', '95px').css('top', '45px').css("display", "block").fadeIn();
//$("canvas").css("background", "#EEEEEE");
$("#btnSave").data("sender", "#myBackColor");
});
$(document).on("click", "#myColor", null, function () {
$('#colorpanel').css('left', '205px').css('top', '45px').css("display", "block").fadeIn();
$("#btnSave").data("sender", "#myColor");
});
$(document).on("mouseover", "#myTable", null, function () {
if ((event.srcElement.tagName == "TD") && (current != event.srcElement)) {
if (current != null) { current.style.backgroundColor = current._background }
event.srcElement._background = event.srcElement.style.backgroundColor;
//$("input[name=DisColor]").css("background-color", event.srcElement.style.backgroundColor);
//var color = event.srcElement.style.backgroundColor;
//var strArr = color.substring(4, color.length - 1).split(',');
//var num = showRGB(strArr);
//$("input[name=HexColor]").val(num);
current = event.srcElement;
}
});
$(document).on("mouseout", "#myTable", null, function () {
if (current != null) current.style.backgroundColor = current._background
});
$(document).on("click", "#myTable", null, function () {
if (event.srcElement.tagName == "TD") {
var color = event.srcElement._background;
if (color) {
$("input[name=DisColor]").css("background-color", color);
var strArr = color.substring(4, color.length - 1).split(',');
var num = showRGB(strArr);
$("input[name=HexColor]").val(num);
}
}
});
$(document).on("click", "#btnSave", null, function () {
$('#colorpanel').css("display", "none");
var typeData = $("#btnSave").data("sender");
var HexColor = $("input[name=HexColor]").val();
var data = $(".js-signature").data();
if (typeData == "#myColor") {
data["plugin_jqSignature"]["settings"]["lineColor"] = HexColor;
$('.js-signature').jqSignature('reLoadData');
}
if (typeData == "#myBackColor") {
data["plugin_jqSignature"]["settings"]["background"] = HexColor;
$('.js-signature').jqSignature('reLoadData');
}
});
$("#mymodal").on('hide.bs.modal', function () {
$("#colorpanel").remove();
$("#mymodal").remove();
$("#myTable").remove();
});
});
function initHtml() {
var html = '<div class="modal" id="mymodal">'
'<div class="modal-dialog">'
'<div class="modal-content">'
'<div class="modal-header">'
''
'<h4 class="modal-title">手写面板</h4>'
'</div>'
'<div class="modal-body">'
'<div class="js-signature" id="mySignature">'
'</div>'
'<div>'
'<button type="button" class="btn btn-default" id="myEmpty">清空面板</button>'
'<button type="button" class="btn btn-default" id="myBackColor">设置背景颜色</button>'
//'<div style="position:absolute;relative">'
'<button type="button" class="btn btn-default" id="myColor">设置字体颜色</button>'
'<div id="colorpanel" style="position:absolute;z-index:99;display:none"></div>'
//'</div>'
'</div>'
'</div>'
'<div class="modal-footer">'
'<button type="button" class="btn btn-default" id="myClose">关闭</button>'
'<button type="button" class="btn btn-primary" id="mySave" onclick="savaimg();" >保存</button>'
'<div id="myImg">'
'<div>'
'</div>'
'</div>'
'</div>'
'</div>';
$('body').append(html);
}
function initTable() {
var colorTable = "";
var ColorHex = new Array('00', '33', '66', '99', 'CC', 'FF');
var SpColorHex = new Array('FF0000', '00FF00', '0000FF', 'FFFF00', '00FFFF', 'FF00FF');
for (var i = 0; i < 2; i ) {
for (var j = 0; j < 6; j ) {
colorTable = colorTable '<tr height=12>';
colorTable = colorTable '<td width=11 style="background-color:#000000"></td>';
if (i == 0) {
colorTable = colorTable '<td width=11 style="background-color:#' ColorHex[j] ColorHex[j] ColorHex[j] '"></td>';
}
else {
colorTable = colorTable '<td width=11 style="background-color:#' SpColorHex[j] '"></td>';
}
//colorTable = colorTable '<td width=11 style="background-color:#000000"></td>';
for (var k = 0; k < 3; k ) {
for (l = 0; l < 6; l ) {
colorTable = colorTable '<td width=11 style="background-color:#' ColorHex[k i * 3] ColorHex[l] ColorHex[j] '"></td>';
}
}
colorTable = colorTable '</tr>';
}
}
colorTable =
'<table border="1" id="myTable" cellspacing="0" cellpadding="0" style="border-collapse: collapse;cursor:pointer;" bordercolor="000000">'
colorTable '</table>'
'<table width=225 border="0" cellspacing="0" cellpadding="0" style="border:1px #000000 solid;border-collapse: collapse;background-color:#000000">'
'<tr style="height:30px">'
'<td colspan=21 bgcolor=#cccccc>'
'<table cellpadding="0" cellspacing="1" border="0" style="border-collapse: collapse">'
'<tr>'
'<td width="3"><input type="text" name="DisColor" size="6" disabled style="border:solid 1px #000000;background-color:#ffff00"></td>'
'<td width="3"><input type="text" name="HexColor" size="7" style="border:inset 1px;font-family:Arial;" value="#000000"></td>'
'<td width="3"><button type="button" class="btn btn-primary btn-sm" id="btnSave">确认</button></td>'
'</tr>'
'</table>'
'</td>'
'</tr>'
'</table>';
$("#colorpanel").append(colorTable);
}
function initSignature() {
debugger;
if (window.requestAnimFrame) {
var signature = $("#mySignature");
signature.jqSignature({ width: 500, height: 200, border: '1px solid red', background: '#16A085', lineColor: '#ABCDEF', lineWidth: 2, autoFit: false });
//{ width: 600, height: 200, border: '1px solid red', background: '#16A085', lineColor: '#ABCDEF', lineWidth: 2, autoFit: true }
} else {
alert("请加载jq-signature.js");
return;
}
}
function showRGB(arr) {
hexcode = "#";
for (x = 0; x < 3; x ) {
var n = arr[x];
if (n == "") n = "0";
if (parseInt(n) != n)
return alert("RGB颜色值不是数字！");
if (n > 255)
return alert("RGB颜色数字必须在0-255之间！");
var c = "0123456789ABCDEF", b = "", a = n % 16;
b = c.substr(a, 1); a = (n - a) / 16;
hexcode = c.substr(a, 1) b
}
return hexcode;
}
function init() {
}
return {
init: function () {
init();
}
};
}