getComponentOffsetFromTop<T> method

double getComponentOffsetFromTop<T>(MultiStateSheetExtent<T> extent, Components component)

Gets the offset of the specified component from the top of viewport.

• extent: The available space and configuration of the MultiStateSheet.
• component: The component whose offset from the top is requested.
• Returns the offset of the specified component.

Implementation

double getComponentOffsetFromTop<T>(
        MultiStateSheetExtent<T> extent, Components component) =>
    switch (component) {
      Components.header => 0.0,
      Components.top => -extent.initialComponentSizes.topHeader,
      Components.content => extent.initialComponentSizes.header,
      Components.footer =>
        extent.offset - extent.initialComponentSizes.footer,
    };