0
var clicks = 0;
var lastClick = [0, 0];
document.getElementById('imageView').addEventListener('click', drawLine, false);
function getCursorPosition(e) {
var x;
var y;
if (e.pageX != undefined && e.pageY != undefined) {
x = e.pageX;
y = e.pageY;
} else {
x = e.clientX + document.body.scrollLeft + document.documentElement.scrollLeft;
y = e.clientY + document.body.scrollTop + document.documentElement.scrollTop;
}
return [x, y];
}
function drawLine(e) {
context = this.getContext('2d');
x = getCursorPosition(e)[0] - this.offsetLeft;
y = getCursorPosition(e)[1] - this.offsetTop;
if (clicks != 1) {
clicks++;
} else {
context.beginPath();
context.moveTo(lastClick[0], lastClick[1]);
context.lineTo(x, y, 6);
context.strokeStyle = '#000000';
context.stroke();
clicks = 0;
}
lastClick = [x, y];
};
这是画线用两个鼠标clicks.But我不知道在按钮啥子叫(我有各种工具工具栏)HTML5画布符合两个鼠标绘制点击
<input type="image" src="images/line.ico" width="25" height="25">
代码
请帮忙 提前致谢!