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shapes5_5.html
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shapes5_5.html
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<!DOCTYPE html>
<html>
<head>
<title>Drawing Shapes</title>
<style type="text/css">
#cnvs
{
float:left;
}
#toolbar
{
float:left;
margin-left:10px;
}
.tools
{
height:38px;
width:38px;
outline:gray solid thin;
background-repeat:no-repeat;
background-position:center;
}
.selected
{
height:38px;
width:38px;
outline:red solid thin;
}
#pencil
{
background-image:url(pencil.png);
}
#circle
{
background-image:url(circle.png);
}
#rect
{
background-image:url(rectangle.png);
}
#cursor
{
background-image:url(cursor.png);
}
#eraser
{
background-image:url(eraser.png);
}
#line
{
background-image:url(line.png);
}
#brush
{
background-image:url(brush.png);
}
#clearall
{
background-image:url(clear.png);
}
</style>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.6.2.js"></script>
<script type="text/javascript" src="http://meta100.github.com/mColorPicker/javascripts/mColorPicker_min.js" charset="UTF-8"></script>
<script type="text/javascript">
$.fn.mColorPicker.init.replace = false;
$(document).ready(function(){
init();
canvas.height=$(window).height()-50;
canvas.width=$(window).width()-120;
$(".tools").click(function(){
$(".selected").removeClass("selected");
$(this).addClass("selected");
selectedTool=this.id;
context.lineWidth=1;
context.strokeStyle=linecol;
if(selectedTool=="clearall")
{
clearCanvas();
}
});
$('#bgcolor').mColorPicker();
$('#bgcolor').bind('colorpicked', function(){
bgcol=($(this).val());
context.fillStyle=bgcol;
context.fillRect(0,0,document.getElementById("board").width,document.getElementById("board").height);
});
$('#fgcolor').mColorPicker();
$('#fgcolor').bind('colorpicked', function(){
fgcol=($(this).val());
});
$('#linecolor').mColorPicker();
$('#linecolor').bind('colorpicked', function(){
linecol=($(this).val());
context.strokeStyle=linecol;
});
});
</script>
</head>
<body>
<div id="container">
<div id="cnvs">
<canvas id="board">
</div>
<div id="toolbar">
Toolbar
<div id="pencil" class="tools"> </div>
<div id="rect" class="tools"> </div>
<div id="line" class="tools"> </div>
<div id="circle" class="tools"> </div>
<div id="brush" class="tools"> </div>
<div id="cursor" class="tools"> </div>
<div id="eraser" class="tools"> </div>
<div id="clearall" class="tools"> </div>
</div>
</div>
<div id="palette">
<input id="bgcolor" type="color" placeholder="Background color"/>
<input id="linecolor" type="color" placeholder="Line color"/>
<input id="fgcolor" type="color" placeholder="Foreground color"/>
</div>
</body>
<script src="http://www.html5canvastutorials.com/libraries/kinetic-v1.2.0.js"></script>
<script type="text/javascript">
var canvas;
var context;
var startX=0;
var startY=0;
var endX=0;
var endY=0;
var diffX=0;
var diffY=0;
var height=0;
var width=0;
var selectedTool="cursor";
var started;
var x,y;
var bgcol="white";
var linecol="black";
var fgcol;
var kin;
var rectX = 0;
var rectY = 0;
var draggingRect = false;
var draggingRectOffsetX = 0;
var draggingRectOffsetY = 0;
var boxes = [];
function init()
{
//canvas=document.getElementById("board");
//context=canvas.getContext("2d");
started=false;
kin = new Kinetic("board", "2d");
canvas = kin.getCanvas();
context = kin.getContext();
context.globalCompositeOperation = "destination-over";
canvas.addEventListener('mousedown',mouseDown,false);
canvas.addEventListener('mouseup',mouseUp,false);
canvas.addEventListener('mouseout',mouseOut,false);
canvas.addEventListener('mousemove',mouseMove,false);
}
function mouseOut(event)
{
started=false;
}
function mouseMove(event)
{
if(selectedTool=="pencil"||selectedTool=="brush"||selectedTool=="eraser")
{
if (event.clientX || event.clientY == 0)
{
x=event.clientX;
y=event.clientY;
if(selectedTool!="pencil")
{
context.lineWidth=5;
}
if(selectedTool=="eraser")
{
context.strokeStyle=bgcol;
}
if (started)
{
context.lineTo(x, y);
context.stroke();
}
else
{
context.beginPath();
context.moveTo(x, y);
}
}
}
}
function mouseDown(event)
{
startX=event.clientX;
startY=event.clientY;
started=true;
}
function mouseUp(event)
{
console.log(linecol);
endX=event.clientX;
endY=event.clientY;
started=false;
if(selectedTool=="rect")
{
kin.beginRegion();
drawRectangle(startX,startY,endX,endY);
context.restore();
kin.closeRegion();
addRectangle(startX,startY,endX,endY);
console.log(boxes.length);
}
if(selectedTool=="line")
{
drawLine();
}
if(selectedTool=="circle")
{
drawCircle();
}
}
function drawLine()
{
context.moveTo(startX,startY);
context.lineTo(endX,endY);
context.stroke();
}
function drawRectangle(cornerX,cornerY,corner2X,corner2Y)
{
diffX=-corner2X+cornerX;
diffY=-corner2Y+cornerY;
context.strokeRect(cornerX,cornerY,-diffX,-diffY);
}
function drawCircle()
{
x=(startX+endX)/2;
y=(startY+endY)/2;
diffX=(startX-endX)*(startX-endX);
diffY=(startY-endY)*(startY-endY);
var radius=Math.sqrt(diffX+diffY)/2;
context.beginPath();
context.arc(x,y,radius,0,2*Math.PI,false);
context.stroke();
}
function clearCanvas()
{
context.clearRect(0,0,canvas.width,canvas.height);
}
//Box object to hold data for all drawn rects
function Box()
{
this.x = 0;
this.y = 0;
this.w = 1; // default width and height
this.h = 1;
}
//Initialize a new Box, add it, and invalidate the canvas
function addRectangle(cornerX,cornerY,corner2X,corner2Y)
{
var rect = new Box;
diffX=-corner2X+cornerX;
diffY=-corner2Y+cornerY;
rect.x = x;
rect.y = y;
rect.w = -diffX;
rect.h = -diffY;
boxes.push(rect);
}
</script>
</html>