uniapp中使用leaferui使用Canvas绘制复杂异形表格的实现方法

小和尚敲代码2025-03-01 18:00

需求：

如下图，要实现左图的样式，先实现框架，文字到时候往里填就行了，原来的解决方案是想用css,html来实现，发现实现起来蛮麻烦的。我也没找到合适的实现方法，最后换使用canvas来实现，使用的js库是leaferui

1.安装:用game是因为有一些交互，反正体积也不大

npm install leafer-game

2.wxml

html 复制代码

    <canvas
            :style="'width:'+cabox.width+'px;height:'+cabox.height+'px;'"
            id="leafer"
            type="2d"
            :width="cabox.width"
            :height="cabox.height"
            catchtouchstart="receiveEvent"
            catchtouchmove="receiveEvent"
            catchtouchend="receiveEvent"
            catchtouchcancel="receiveEvent"
    ></canvas>

3.javascript

javascript 复制代码

  lf = new Leafer({view: window, width: that.cabox.width, height: that.cabox.height})
            lf.add(Rect.one(0,0,that.cabox.width,that.cabox.height));
            lf.add(Rect.one({width: that.cabox.width, height: that.cabox.height, strokeWidth: 2, stroke: "black",}));
            lf.add(Rect.one({
                strokeWidth: 2,
                stroke: "black",
                width: (that.cabox.perBox * 11.5),
                height: (that.cabox.perBox * 11.5),
                x: that.cabox.perBox * 1.75,
                y: that.cabox.perBox * 1.75
            }));
            lf.add(Rect.one({
                strokeWidth: 2,
                stroke: "black",
                width: (that.cabox.perBox * 9),
                height: (that.cabox.perBox * 9),
                x: that.cabox.perBox * 3,
                y: that.cabox.perBox * 3
            }));
            lf.add(Line.one({
                stroke: "black",
                strokeWidth: 2,
                points: [0, 0, that.cabox.perBox * 3, that.cabox.perBox * 3]
            }));
            lf.add(Line.one({
                stroke: "black",
                strokeWidth: 2,
                points: [that.cabox.width, 0, that.cabox.perBox * 12, that.cabox.perBox * 3]
            }));
            lf.add(Line.one({
                stroke: "black",
                strokeWidth: 2,
                points: [that.cabox.width, that.cabox.height, that.cabox.perBox * 12, that.cabox.perBox * 12]
            }));
            lf.add(Line.one({
                stroke: "black",
                strokeWidth: 2,
                points: [0, that.cabox.height, that.cabox.perBox * 3, that.cabox.perBox * 12]
            }));
            lf.add(Line.one({
                stroke: "black",
                strokeWidth: 2,
                points: [that.cabox.perBox*6, 0, that.cabox.perBox*6, that.cabox.height]
            }));
            lf.add(Line.one({
                stroke: "black",
                strokeWidth: 2,
                points: [that.cabox.perBox*9, 0, that.cabox.perBox*9, that.cabox.height]
            }));
            lf.add(Line.one({
                stroke: "black",
                strokeWidth: 2,
                points: [0, that.cabox.perBox*6, that.cabox.width, that.cabox.perBox*6]
            }));
            lf.add(Line.one({
                stroke: "black",
                strokeWidth: 2,
                points: [0, that.cabox.perBox*9, that.cabox.width, that.cabox.perBox*9]
            }));