我正在使用Kinetic JS拖动一个矩形'left_handle'。在拖动过程中,我还想将另一个矩形“盒子”的左边缘放在它上面。我没有收到任何错误,所以我假设我正在做的是工作,但我想我需要做一些事情来更新画布或......?
left_handle矩形按预期移动,但框没有任何反应。
var STAGE_WIDTH = 500;
var stage = new Kinetic.Stage({
container: "container",
width: STAGE_WIDTH,
height: 200
});
var layer = new Kinetic.Layer();
var rectX = 80;
var rectY = stage.getHeight() / 2 - 25;
var box = new Kinetic.Rect({
x: rectX,
y: rectY,
width: 100,
height: 50,
fill: "#00D2FF",
stroke: "black",
strokeWidth: 4
});
var handle_left = new Kinetic.Rect({
x: rectX,
y: rectY,
height: 50,
width: 10,
fill:'#FFC400',
stroke:'black',
strokeWidth:3,
draggable:true,
dragConstraint:'horizontal',
dragBounds: {
left: 10, right: STAGE_WIDTH - 20
}
});
// - - - - - - - this is the bit that doesn't work - - - - -
handle_left.on('dragmove', function(evt) {
box.setX(handle_left.x);
layer.draw();
});
// - - - - - - - - - - - -
layer.add(box);
layer.add(handle_left);
stage.add(layer);