/**
* 功能：使用该jQuery插件来制作在线签名或涂鸦板，用户绘制的东西可以用图片的形式保存下来。
* 作者：黄金锋 (549387177@qq.com)
* 日期：2015-11-16 13:51:01
* 版本：version 1.0
*/
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 alt="HTML5 中canvas支持触摸屏的签名面板" >').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 = '</p><div class="modal" id="mymodal">' +
'<div class="modal-dialog">' +
'<div class="modal-content">' +
'<div class="modal-header">' +
'<button type="button" class="close" data-dismiss="modal"><span aria-hidden="true">×</span><span class="sr-only">Close</span></button>' +
'<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">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 ';
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 ';
}
}
colorTable = colorTable + '';
}
}
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() {
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 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();
}
};</div>
<p><br></p>
<p><font size="2"> 来源</font><a href="http://www.cnblogs.com/fenglingyi/p/4971155.html?utm_source=tuicool&utm_medium=referral"><font size="2">博客园</font></a></p>
</div>
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