Gojs PanelExpanderButton自定义图标

时间:2018-08-31 06:33:57

标签: gojs

在Gojs中,是否可以提供自定义图标?就我而言,我想使用SVG / PNG图像作为PanelExpanderButton图标。

go.GraphObject.defineBuilder("PanelExpanderButton", function(args) {
      var eltname = /** @type {string} */ (go.GraphObject.takeBuilderArgument(args, "COLLAPSIBLE"));

      var button = /** @type {Panel} */ (
        $("Button",
          { // set these values for the visible binding conversion
            "_buttonExpandedFigure": $(go.Picture, {
                // desiredSize: new go.Size(10, 10),
                source: "assets/images/expand.png"
              },
            ),
            "_buttonCollapsedFigure": $(go.Picture, {
                // desiredSize: new go.Size(10, 10),
                source: "assets/images/collapse.png"
              },
            )
          },
          $(go.Picture, { source: "assets/images/expand.png", desiredSize: new go.Size(10, 10) },
            new go.Binding("figure", "visible", function(vis) { return vis ? button["_buttonExpandedFigure"] : button["_buttonCollapsedFigure"]; })
            .ofObject(eltname)
          )
        )
      );

      var border = button.findObject("ButtonBorder");
      if (border instanceof go.Shape) {
        border.stroke = null;
        border.fill = "transparent";
      }

      button.click = function(e, button) {
        var diagram = button.diagram;
        if (diagram === null) return;
        if (diagram.isReadOnly) return;
        var elt = button.findTemplateBinder();
        if (elt === null) elt = button.part;
        if (elt !== null) {
          var pan = elt.findObject(eltname);
          if (pan !== null) {
            diagram.startTransaction('Collapse/Expand Panel');
            pan.visible = !pan.visible;
            diagram.commitTransaction('Collapse/Expand Panel');
          }
        }
      }

      return button;
    });

当面板展开/折叠时,我无法更改图标

我在尝试使用图片,但没有成功

编码愉快!

1 个答案:

答案 0 :(得分:1)

“图形”必须是Shape.defineFigureGenerator定义的名称之一,包括库中预定义的所有图形名称。因此,您不能以这种方式使用图片

但是您可以复制和修改https://gojs.net/latest/extensions/Buttons.js中提供的“ PanelExpanderButton”的定义。这样,您可以调整其大小并为其状态提供任意形状。如果您想使用SVG,请注意特定于平台的限制:https://gojs.net/latest/intro/pictures.html#UsingSVGAsPictureSource