The IconElement shows an arbitrary GIF/JPEG picture. If a message ID is defined with the element properties, the image displayed will change with the parameter value addressed by the message identifier.
Data Model (extends ScreenElement)
| Key | Type | Value |
|---|---|---|
| type | String | Always "IconElement". |
| xpos | Number | see ScreenElement |
| ypos | Number | see ScreenElement |
| width | Number | see ScreenElement |
| height | Number | see ScreenElement |
| id | String | the message ID this element listens to |
| icon | String | the initial icon file name |
When displayed the first time, the Iconelement shows the image specified in icon. If the message ID id is not empty, the IconElement dubscribes for this ID and changes the displayed icon every time a new value is received. To make use of this, the name of the icon should be structured in the following way:
base-name.{value-part}.{extension}The value-part gets replaced by the parameter value received. For a boolean value for example, two icons 'red-lamp.false.png' and 'red-lamp.true.png'. The IconElement is configured to show 'red-lamp.false.png' initially. When the parameter addressed by id gets updated, the display changes according to the parameter value.