Sub-properties

In most cases, reactivity means responding to a change in the content of a text element. More precisely, it means reacting to changes in certain properties of text, such as changes in width.

However, the width of a text is itself a property that depends on other properties. It is the result of an algorithm that takes into account the content, maximum allowed width, maximum allowed height, font size, line height, letter spacing, and automatic line breaks.

Properties that are a result of a reactive calculation based on primary properties are called sub-porperties. Sub-properties are inherently reactive and cannot be predefined in the properties editor.

You can access these sub-properties in the elements-tab of the expression editor in order to make other element's properties reactive too.

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