1
我發佈的問題是，在給定的示例程序中，當我點擊第一個按鈕時，我做了兩個按鈕比我畫線和當我點擊第二個按鈕時，我畫rectangle.The問題是，當我點擊比線無一不被吸引simultaneously.Here矩形的第二個按鈕是我的代碼在Fabric.js中同時繪製兩個對象
<!DOCTYPE html>
<html>
<head>
<title>Final layout</title>
<script type="text/javascript" src="fabric.min.js"></script>
<script type="text/javascript" src="jquery-2.0.2.js"></script>
<script type="text/javascript">
//Start when the document is loaded
$(document).ready(function(){
//Getting the canvas
var canvas1= new fabric.Canvas('canvas');
//Setting the canvas properties
canvas1.setHeight(400);
canvas1.setWidth(1300);
canvas1.setBackgroundColor('lightgrey');
canvas1.renderAll();
//End of canvas1
//Binding the functions to button_1
$('#1').click(function(){
console.log("button 1 clicked");
canvas1.isDrawingMode=true; // **Enables line drawing
canvas1.freeDrawingBrush.width=3;
canvas1.freeDrawingBrush.color='blue';
//Adding code to alter line properties
canvas1.on('path:created',function(e){
var line1= e.path;
line1.lockScalingX;
line1.lockScalingY;
});
});
//Binding the functions to button_2
$('#2').click(function(){
console.log("Button 2 cilcked");
//Declaring the variables
var isMouseDown=false;
var OriginX=new Array();
var OriginY= new Array();
var refRect;
//Setting the mouse events
canvas1.on('mouse:down',function(event){
//Defining the procedure
isMouseDown=true;
OriginX=[];
OriginY=[];
//Getting yhe mouse Co-ordinates
var posX=event.e.clientX;
var posY=event.e.clientY;
OriginX.push(posX);
OriginY.push(posY);
//Creating the rectangle object
var rect=new fabric.Rect({
left:OriginX[0],
top:OriginY[0],
width:0,
height:0,
stroke:'red',
strokeWidth:3,
fill:'white'
});
canvas1.add(rect);
refRect=rect; //**Reference of rectangle object
});
canvas1.on('mouse:move', function(event){
// Defining the procedure
if(!isMouseDown)
{
return;
}
//Getting yhe mouse Co-ordinates
var posX=event.e.clientX;
var posY=event.e.clientY;
refRect.setWidth(Math.abs((posX-refRect.get('left'))));
refRect.setHeight(Math.abs((posY-refRect.get('top'))));
canvas1.renderAll();
});
canvas1.on('mouse:up',function(){
//alert("mouse up!");
isMouseDown=false;
});
});
});
</script>
</head>
<body>
<canvas id="canvas" style="border: 2px solid darkblue"></canvas>
<div style="position: relative; width: 1300px; height:30px; border: 2px solid black; margin-top: 5px">
<input type="button" id="1" value="pencil">
<input type="button" id="2" value="rectangle">
</div>
</body>
請讓我知道什麼是這個問題，我應該吃什麼一次繪製一個形狀。