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DataV:Button

Last Updated:May 12, 2023

This topic describes the chart style of a button widget and the meaning of each configuration items.

Chart Style

A button is a widget that allows you to customize the color, size, label content, and jump link of a button in multiple states. You can use the widget to interact with the widget and display the link page or prompt information in a visual application. image..png

Settings Panel

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  • Search for Configurations: In the right-side panel of Canvas Editor, click the Settings tab, and click Search for Configurations in the upper-right corner. Enter the required configuration item in the search box, and click the search icon to quickly locate the configuration item. Fuzzy match is supported. For more information, see Search for asset configurations.
  • Size: indicates the size of a widget, including its pixel width and height. You can click the Proportional resizing icon to proportionally adjust the width and height of a widget. After you click this icon again, you can adjust the width and height as needed.
  • Position: the position of a widget, which is indicated by pixel X and Y coordinates. X-coordinate indicates the pixel distance between the upper-left corner of the widget and the left border of the canvas. Y-coordinate indicates the pixel distance between the upper-left corner of the widget and the upper border of the canvas.
  • Rotation Angle: the angle of a rotation that uses the center point of a widget as the rotation point. The unit is degrees (°). You can use one of the following methods to control the rotation angle of a widget:
    • Directly enter the degrees in the Rotation Angle spin box or click the plus sign (+) or minus sign (-) to increase or decrease the value in the Rotation Angle spin box.
    • Drag the black dot in the Rotation control icon icon.
    • Click the Horizontal flip icon to horizontally flip a widget.
    • Click the Vertical flip icon to vertically flip a widget.
  • Opacity: the opacity of a widget. Valid values: 0 and 1. If this parameter is set to 0, the widget is hidden. If this parameter is set to 1, the widget is completely displayed. Default value: 1.
  • Global Style

    Text Content: the text content of the button.

  • Normal Style

    • Border Style

      Parameter

      Description

      Border Width

      The border width in the unit of pixels.

      Border Color

      The border color. For more information, see Configure item description.

      Border Fillet

      The round border radius of a button. The value range is 0–360. If the value is 0, the button border is square. If the value is 360, the button border is round.

      Line Type

      The border line type, which can be Solid Line, Dashed Line, Dotted Line, Double Solid Line, Carved Effect, Embossed Effect, Sunken Effect, or Protrude Effect.

    • Background Style

      Parameter

      Description

      Background Color

      The background color.

      Background Image

      Click or drag the file to the dotted box to change the background image, or enter the URL link of the image above the dotted box.

      Duplicate background image

      Turn on this switch to repeat a background image in a button when the image does not fully cover the button.

      Background Size

      The fill type of a background image, which can be Cover, Contain, or Auto.

    • Text Style: the text style of the button.

      Parameter

      Description

      Color

      The default font color.

      Font Style

      The font style, which can be Normal, Italic, or Oblique.

      Font weight

      The font weight.

      Font

      The font family. The default value is sans-serif.

      Note

      Select a font that is already installed on your operating system. If no font is installed, the default font is displayed.

      Font size

      The font size.

      Text Alignment

      The text alignment mode, which can be Align Left, Align Right, or Align Center.

  • Style on Click: the display style of a button when you click this button. For more information, see Common styles.

  • Style on Hover: the display style of a button when you move the pointer over this button. For more information, see Common styles.

  • Hyperlink Configuration: Click the button widget to go to the specified hyperlink.

    Parameter

    Description

    Hyperlink

    The URL of a hyperlink.

    Open window

    When this switch is turned on, you can open a link on a new tab. When this switch is turned off, you can open a link on the current tab.

Data Panel

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value: allows you to set the value of an event node.

Table 1. Parameters
ParameterDescription
Controlled ModeIf you turn on the switch, data is not requested when a widget is initialized. Data requests are triggered only based on callback IDs or the method configured in Blueprint Editor. If you turn off the switch, data requests are automatically triggered. By default, the switch is turned off.
Auto Data RequestAfter you select the Auto Data Request check box, you can enable dynamic polling, and manually specify the polling interval. If you do not select this check box, data is not automatically requested. You must manually refresh the page to request data or use Blueprint Editor or callback ID events to trigger data requests.
Data SourceIn the right-side panel of Canvas Editor, click the Data tab. Click Set next to Static Data. In the Configure Datasource panel, select a data source from the Data Source Type drop-down list. Enter code for data query in the code editor, click Preview Data Response to preview the response of the data source, and then view the response. For more information, see Configure asset data.
Data FilterIf you select the Data Filter check box, you can convert the data structure, filter data, and perform simple calculations. If you click the plus sign (+) next to Add Filter, you can configure the script for the data filter in the editor that appears. For more information, see Use the data filter.
Data Response ResultThe response to a data request. If the data source changes, you can click the Refresh icon icon next to Data Response Result to view the data response in real time.

Interaction Panelimage..png

Select the Enable check box to enable interactions between widgets. When the button area is clicked, a data request is triggered. By default, the value value configured in the data panel is thrown. For more information, see Configure the callback ID of a ticker board.

Configure interactions in Blueprint Editor

  1. In Canvas Editor, right-click a widget in the Layer panel and select Add to Blueprint Editor.
  2. Click the Blueprint Editor icon icon in the upper-left corner of the page.
  3. In Blueprint Editor, click the Button component in the Added Nodes pane. On the canvas, you can configure the parameters for the buttons, as shown in the following figure. 节点编程参数配置

    • Event

      Parameter

      Description

      When the data interface request is completed

      The event is triggered with the processed JSON data after a data interface request is responded and processed by a filter. For more information about specific data examples, see the Data Response Result section of the Data tab in the right-side configuration panel of the canvas editor.

      When a data interface request fails

      The event that is returned when a data interface request fails (the request may be due to network problems or interface errors) and is processed by the filter. The event also throws the processed JSON data. For more information about specific data examples, see the Data Response Result section of the Data tab in the right-side configuration panel of the canvas editor.

      When a button is clicked

      The event is triggered with a data item when the button is clicked. The data item corresponds to the button.

    • Policy Action

      Policy Action

      Description

      Request Data Interface

      This action is performed to request the server data again. The data sent by an upstream converter or layer node is used as a parameter. For example, if the API data source is https://api.test and the data transferred to the request data interface is { id: '1'}, the final request interface is https://api.test?id=1.

      Import data

      After data of a widget is processed in accordance with its drawing format, the widget is imported for redrawing. You do not need to request server data again. For more information about specific data examples, see the Data Response Result section of the Data tab in the right-side configuration panel of the canvas editor.

      Update component configurations

      Style configurations of widgets are dynamically updated. Before this action is executed, you must click the widget in Canvas Editor, click the Settings tab in the right-side panel, and click Copy Configurations to... to obtain widget configurations. After that, change the style field for the data processing node in Blueprint Editor.

      Display

      The display widget. For more information, see the following example.

      return {
        "animationType": "",
        "animationDuration": 1000,
        "animationEasing": "linear"
      };

      Hide

      The following example shows how to hide a widget.

      return {
        "animationType": "",
        "animationDuration": 1000,
        "animationEasing": "linear"
      };

      Switch to the implicit state

      Specifies whether to show or hide a widget. For more information, see the following example.

      return {
        "animationIn": {
          "animationType": "",
          "animationDuration": 1000,
          "animationEasing": "linear"
        },
        "animationOut": {
          "animationType": "",
          "animationDuration": 1000,
          "animationEasing": "linear"
        }
      };

      Move

      Move a widget to a specified location. For more information, see the following data example.

      return {
        // The positioning type. to indicates absolute positioning, whereas by indicates relative positioning. The default value is to. 
        "positionType": "to",
        // The location, which is indicated by the x and y coordinates. 
        "attr": {
          "x": 0,
          "y": 0
        },
        // The animation type. 
        "animation": {
          "enable": false,
          // The duration in which animation is displayed. 
          "animationDuration": 1000,
          // The animation curve, which can be set to linear|easeInOutQuad|easeInOutExpo. 
          "animationEasing": "linear"
        }
      };