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DAYE_RDMS_CCFLOW
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DAYE_RDMS_CCFLOW/CCFlow/.svn/pristine/35/35d59178ae1a138bf2b68068f81...

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初始化代码
11 months ago
(function (window, document, $) {
'use strict';
// Get a regular interval for drawing to the screen
window.requestAnimFrame = (function (callback) {
return window.requestAnimationFrame ||
window.webkitRequestAnimationFrame ||
window.mozRequestAnimationFrame ||
window.oRequestAnimationFrame ||
window.msRequestAnimaitonFrame ||
function (callback) {
window.setTimeout(callback, 1000 / 60);
};
})();
/*
* Plugin Constructor
*/
var pluginName = 'jqSignature',
defaults = {
lineColor: '#222222',
lineWidth: 1,
border: '1px dashed #AAAAAA',
background: '#FFFFFF',
width: 300,
height: 100,
autoFit: false
},
canvasFixture = '<canvas></canvas>';
function Signature(element, options) {
// DOM elements/objects
this.element = element;
this.$element = $(this.element);
this.canvas = false;
this.$canvas = false;
this.ctx = false;
// Drawing state
this.drawing = false;
this.currentPos = {
x: 0,
y: 0
};
this.lastPos = this.currentPos;
// Determine plugin settings
this._data = this.$element.data();
this.settings = $.extend({}, defaults, options, this._data);
// Initialize the plugin
this.init();
}
Signature.prototype = {
// Initialize the signature canvas
init: function () {
// Set up the canvas
this.$canvas = $(canvasFixture).appendTo(this.$element);
this.$canvas.attr({
width: this.settings.width,
height: this.settings.height
});
this.$canvas.css({
boxSizing: 'border-box',
width: this.settings.width + 'px',
height: this.settings.height + 'px',
border: this.settings.border,
background: this.settings.background,
cursor: 'crosshair'
});
// Fit canvas to width of parent
if (this.settings.autoFit === true) {
this._resizeCanvas();
// TO-DO - allow for dynamic canvas resizing
// (need to save canvas state before changing width to avoid getting cleared)
// var timeout = false;
// $(window).on('resize', $.proxy(function(e) {
// clearTimeout(timeout);
// timeout = setTimeout($.proxy(this._resizeCanvas, this), 250);
// }, this));
}
this.canvas = this.$canvas[0];
this.cxt = this.canvas.getContext('2d');
this.x = []; //<2F><>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD>ƶ<EFBFBD><C6B6>ǵ<EFBFBD>X<EFBFBD><58><EFBFBD><EFBFBD>
this.y = []; //<2F><>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD>ƶ<EFBFBD><C6B6>ǵ<EFBFBD>Y<EFBFBD><59><EFBFBD><EFBFBD>
this.clickDrag = [];
this.lock = false; //<2F><><EFBFBD><EFBFBD><EFBFBD>ƶ<EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD>ж<EFBFBD><D0B6><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD>
this.storageColor = "#000000";
this.cxt.lineJoin = "round"; //context.lineJoin - ָ<><D6B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>߶ε<DFB6><CEB5><EFBFBD><EFBFBD>ӷ<EFBFBD>ʽ
this.cxt.lineWidth1 = 5; //<2F><><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD>
var user = new WebUser();
console.log(user.Name);
if (user.Name == "<22><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>") {
this.cxt.lineWidth1 = 2; //<2F><><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD><C4BF><EFBFBD>
$("#select-font-size").val("2");
}
this.w = this.canvas.width; //ȡ<><C8A1><EFBFBD><EFBFBD><EFBFBD>Ŀ<EFBFBD>
this.h = this.canvas.height; //ȡ<><C8A1><EFBFBD><EFBFBD><EFBFBD>ĸ<EFBFBD>
this.touch = ("createTouch" in document); //<2F>ж<EFBFBD><D0B6>Ƿ<EFBFBD>Ϊ<EFBFBD>ֳ<EFBFBD><D6B3>豸
this.StartEvent = this.touch ? "touchstart" : "mousedown"; //֧<>ִ<EFBFBD><D6B4><EFBFBD>ʽʹ<CABD><CAB9><EFBFBD><EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD>
this.MoveEvent = this.touch ? "touchmove" : "mousemove";
this.EndEvent = this.touch ? "touchend" : "mouseup";
this._resetCanvas();
// Set up mouse events
this.$canvas.on('mousedown touchstart', $.proxy(function (e) {
//var touch = this.touch ? e.touches[0] : e;
//<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ƥ<EFBFBD><C6A4>
var skno1 = $('#clr').attr('val');
var xPos, yPos, rect;
rect = this.canvas.getBoundingClientRect();
var event = e;
if (event.type.indexOf('touch') !== -1) { // event.constructor === TouchEvent
xPos = event.touches[0].clientX - rect.left;
yPos = event.touches[0].clientY - rect.top;
}
// Mouse event
else {
xPos = event.clientX - rect.left;
yPos = event.clientY - rect.top;
}
var _x = xPos; //<2F><><EFBFBD><EFBFBD><EFBFBD>ڻ<EFBFBD><DABB><EFBFBD><EFBFBD>ϵ<EFBFBD>x<EFBFBD><78><EFBFBD>꣬<EFBFBD>Ի<EFBFBD><D4BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͻ<EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD>
var _y = yPos; //<2F><><EFBFBD><EFBFBD><EFBFBD>ڻ<EFBFBD><DABB><EFBFBD><EFBFBD>ϵ<EFBFBD>y<EFBFBD><79><EFBFBD>꣬<EFBFBD>Ի<EFBFBD><D4BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͻ<EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD>
if (skno1 == 1) {
this.resetEraser(_x, _y);
} else {
this.cxt.strokeStyle = "#000000";
this.cxt.lineWidth = this.cxt.lineWidth1;
/*
this.drawing = true;
this.lastPos = this.currentPos = this._getPosition(e);
*/
this.movePoint(_x, _y); //<2F><>¼<EFBFBD><C2BC><EFBFBD><EFBFBD>λ<EFBFBD><CEBB>
this.drawPoint(); //<2F><><EFBFBD><EFBFBD>·<EFBFBD><C2B7>
}
this.lock = true;
}, this));
this.$canvas.on('mousemove touchmove', $.proxy(function (e) {
//var touch = this.touch ? e.touches[0] : e;
var skno1 = $('#clr').attr('val');
if (this.lock) { //t.lockΪtrue<75><65>ִ<EFBFBD><D6B4>
var xPos, yPos, rect;
rect = this.canvas.getBoundingClientRect();
var event = e;
if (event.type.indexOf('touch') !== -1) { // event.constructor === TouchEvent
xPos = event.touches[0].clientX - rect.left;
yPos = event.touches[0].clientY - rect.top;
}
// Mouse event
else {
xPos = event.clientX - rect.left;
yPos = event.clientY - rect.top;
}
var _x = xPos; //<2F><><EFBFBD><EFBFBD><EFBFBD>ڻ<EFBFBD><DABB><EFBFBD><EFBFBD>ϵ<EFBFBD>x<EFBFBD><78><EFBFBD>꣬<EFBFBD>Ի<EFBFBD><D4BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͻ<EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD>
var _y = yPos; //<2F><><EFBFBD><EFBFBD><EFBFBD>ڻ<EFBFBD><DABB><EFBFBD><EFBFBD>ϵ<EFBFBD>y<EFBFBD><79><EFBFBD>꣬<EFBFBD>Ի<EFBFBD><D4BB><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ͻ<EFBFBD>Ϊ<EFBFBD><CEAA><EFBFBD><EFBFBD> {
if (skno1 == 1) {
this.resetEraser(_x, _y);
} else {
this.cxt.strokeStyle = "#000000";
this.cxt.lineWidth = this.cxt.lineWidth1;
/*
this.currentPos = this._getPosition(e);
*/
this.movePoint(_x, _y, true); //<2F><>¼<EFBFBD><C2BC><EFBFBD><EFBFBD>λ<EFBFBD><CEBB>
this.drawPoint(); //<2F><><EFBFBD><EFBFBD>·<EFBFBD><C2B7>
}
}
}, this));
this.$canvas.on('mouseup touchend', $.proxy(function (e) {
this.lock = false;
this.x = [];
this.y = [];
this.clickDrag = [];
this.drawing = false;
// Trigger a change event
var changedEvent = $.Event('jq.signature.changed');
this.$element.trigger(changedEvent);
}, this));
// Prevent document scrolling when touching canvas
$(document).on('mouseup touchend', $.proxy(function (e) {
this.lock = false;
this.x = [];
this.y = [];
this.clickDrag = [];
this.drawing = false;
// Trigger a change event
var changedEvent = $.Event('jq.signature.changed');
this.$element.trigger(changedEvent);
}, this));
$(document).on('touchstart touchmove touchend', $.proxy(function (e) {
if (e.target === this.canvas) {
e.preventDefault();
}
}, this));
// Start drawing
var that = this;
(function drawLoop() {
window.requestAnimFrame(drawLoop);
that._renderCanvas();
})();
},
// Clear the canvas
clearCanvas: function () {
this.canvas.width = this.canvas.width;
this._resetCanvas();
},
// Get the content of the canvas as a base64 data URL
getDataURL: function () {
return this.canvas.toDataURL();
},
setfont: function () { //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>С
var fontsize = $("#select-font-size").val();
console.log(fontsize);
this.cxt.lineWidth1 = parseInt(fontsize);
},
// Get the position of the mouse/touch
_getPosition: function (event) {
var xPos, yPos, rect;
rect = this.canvas.getBoundingClientRect();
event = event.originalEvent;
// Touch event
if (event.type.indexOf('touch') !== -1) { // event.constructor === TouchEvent
xPos = event.touches[0].clientX - rect.left;
yPos = event.touches[0].clientY - rect.top;
}
// Mouse event
else {
xPos = event.clientX - rect.left;
yPos = event.clientY - rect.top;
}
return {
x: xPos,
y: yPos
};
},
movePoint: function (x, y, dragging) {
/*<2A><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD><D3B5><EFBFBD><EFBFBD>Զ<EFBFBD>Ӧ<EFBFBD><D3A6><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>*/
this.x.push(x);
this.y.push(y);
this.clickDrag.push(y);
},
drawPoint: function (x, y, radius) {
for (var i = 0; i < this.x.length; i++) //ѭ<><D1AD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
{
this.cxt.beginPath(); //context.beginPath() , ׼<><D7BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB>·<EFBFBD><C2B7>
if (this.clickDrag[i] && i) { //<2F><><EFBFBD><EFBFBD><EFBFBD>϶<EFBFBD><CFB6><EFBFBD><EFBFBD><EFBFBD>i!=0ʱ<30><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>һ<EFBFBD><D2BB><EFBFBD>㿪ʼ<E3BFAA><CABC><EFBFBD>ߡ<EFBFBD>
this.cxt.moveTo(this.x[i - 1], this.y[i - 1]); //context.moveTo(x, y) , <20>¿<EFBFBD>һ<EFBFBD><D2BB>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
} else {
this.cxt.moveTo(this.x[i] - 1, this.y[i]);
}
this.cxt.lineTo(this.x[i], this.y[i]); //context.lineTo(x, y) , <20><><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD>ָ<EFBFBD><D6B8><EFBFBD>ĵ<EFBFBD><C4B5><EFBFBD>һ<EFBFBD><D2BB><EFBFBD><EFBFBD>ֱ<EFBFBD><D6B1>·<EFBFBD><C2B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
this.cxt.closePath(); //context.closePath() , <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ·<C7B0><C2B7><EFBFBD>Ǵ򿪵<C7B4><F2BFAAB5><EFBFBD><EFBFBD>ر<EFBFBD><D8B1><EFBFBD>
this.cxt.stroke(); //context.stroke() , <20><><EFBFBD>Ƶ<EFBFBD>ǰ·<C7B0><C2B7>
}
},
resetEraser: function (_x, _y) {
/*ʹ<><CAB9><EFBFBD><EFBFBD>Ƥ<EFBFBD><C6A4>-<2D><><EFBFBD><EFBFBD>*/
var t = this;
//this.cxt.lineWidth = 30;
/*source-over Ĭ<><C4AC>,<2C>ཻ<EFBFBD><E0BDBB><EFBFBD><EFBFBD><EFBFBD>ɺ<EFBFBD><C9BA><EFBFBD><EFBFBD><EFBFBD>ͼ<EFBFBD>ε<EFBFBD><CEB5><EFBFBD><EFBFBD><EFBFBD>(<28><>ɫ,<2C><><EFBFBD><EFBFBD>,<2C><><EFBFBD><EFBFBD>)<29><><EFBFBD><EFBFBD>,ȫ<><C8AB><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͨ<EFBFBD><CDA8>*/
t.cxt.globalCompositeOperation = "destination-out";
t.cxt.beginPath();
t.cxt.arc(_x, _y, this.cxt.lineWidth1 + 6, 0, Math.PI * 2);
t.cxt.strokeStyle = "rgba(250,250,250,0)";
t.cxt.fill();
t.cxt.globalCompositeOperation = "source-over"
},
// Render the signature to the canvas
_renderCanvas: function () {
if (this.drawing) {
this.ctx.moveTo(this.lastPos.x, this.lastPos.y);
this.ctx.lineTo(this.currentPos.x, this.currentPos.y);
this.ctx.stroke();
this.lastPos = this.currentPos;
}
},
// Reset the canvas context
_resetCanvas: function () {
//this.ctx = this.canvas.getContext("2d");
// this.ctx.strokeStyle = "#000000";
//this.ctx.lineWidth = 5;
},
// Resize the canvas element
_resizeCanvas: function () {
var width = this.$element.outerWidth();
this.$canvas.attr('width', width);
this.$canvas.css('width', width + 'px');
}
};
/*
* Plugin wrapper and initialization
*/
$.fn[pluginName] = function (options) {
var args = arguments;
if (options === undefined || typeof options === 'object') {
return this.each(function () {
if (!$.data(this, 'plugin_' + pluginName)) {
$.data(this, 'plugin_' + pluginName, new Signature(this, options));
}
});
} else if (typeof options === 'string' && options[0] !== '_' && options !== 'init') {
var returns;
this.each(function () {
var instance = $.data(this, 'plugin_' + pluginName);
if (instance instanceof Signature && typeof instance[options] === 'function') {
returns = instance[options].apply(instance, Array.prototype.slice.call(args, 1));
}
if (options === 'destroy') {
$.data(this, 'plugin_' + pluginName, null);
}
});
return returns !== undefined ? returns : this;
}
};
})(window, document, jQuery);