javascript - 用于滚动的 KineticJS 变换层

Question

我一直在尝试按照 Kinetic API 上的教程将滚动条放入我的 KineticJS 应用程序中。我让滚动条本身按其应有的方式显示，但我不确定如何使用事件监听器来实际移动舞台或每个层，以便滚动条实际移动 View 。

var hscrollArea = new Kinetic.Rect({
    x: 10,
    y: $(window).height() - 30 - 80, // 80 to account for the fixed footer
    width: $(window).width() - 40,
    height: 20,
    fill: "gray",
    opacity: 0.3
});

var hscroll = new Kinetic.Rect({
    x: 10,
    y: $(window).height() - 30 - 80,// 80 to account for the fixed footer
    width: 130,
    height: 20,
    fill: "orange",
    draggable: true,
      dragBoundFunc: function(pos) {
        // TODO: Move stage or layers at this point
        console.log("dragBoundFunc: " + this);
        return {
            x: pos.x,
            y: this.getAbsolutePostion().y
        };
      },
    opacity: 0.9,
    stroke: "black",
    strokeWidth: 1
});

var vscrollArea = new Kinetic.Rect({
    x: $(window).width() - 30,
    y: 10,
    width: 20,
    height: $(window).height() - 40 - 80,
    fill: "gray",
    opacity: 0.3
});

var vscroll = new Kinetic.Rect({
    x: $(window).width() - 30,
    y: 10,
    width: 20,
    height: 70,
    fill: "orange",
    draggable: true,
    dragBoundFunc: function(pos) {
        // TODO: Move stage or layers at this point
        console.log("dragBoundFunc: " + this);
        return {
            x: this.getAbsolutePosition().x,
            y: pos.y
        };
    },
    opacity: 0.9,
    stroke: "black",
    strokeWidth: 1
});

任何帮助将不胜感激:) 谢谢， 贝基

Answer 1

拖动滚动条(矩形)时，您可以移动舞台或图层。即，

stage.move(50,50);
stage.draw();

stage.move(-50,-50);
stage.draw();