toasted_alignment library

Functions

calculatePositionOffset({required BuildContext context, required Alignment alignment}) → Offset

Calculates the positional offset that the dialog should take relative to the BuildContext associated with the widget that opened it. For example, if the specified alignment is Alignment.bottomRight, then since the position of the dialog starts at the top-left relative to the widget that opened it, the dialog can be positioned at the bottom right of that box using a positional offset of: x-axis: renderBoxOffset.dx + renderBoxWidth y-axis: renderBoxOffset.dy + renderBoxHeight The translational offset function below is then used to translate the dialog relative to its own width, since its coordinates also start top-left and to achieve a Alignment.bottomRight alignment, it needs to be translated in the x-axis by its own width to align its right bound with the right bound of the widget that opened it and in the y-axis by its own height to also align its bottom bound with the bottom of the widget that opened it.

calculateSize({required BuildContext context}) → Size

Calculates the box constraints of the toast's container based on the enclosing BuildContext provided to the toast.

calculateTranslationOffset({required Alignment alignment}) → Offset

Calculates the translational offset that the dialog should take relative to the BuildContext of the widget that opened it. For example, if the specified alignment is Alignment.bottomRight, then since positional offset calculation positions the dialog at the bottom right of the widget that opened it, the translational offset will need to apply an x-axis translation of Offset(-1.0, 0) since the dialog's coordinates start top-left and to have it's right bound end at the right bound of the widget that opened it, it needs a negative translation equal to its own width.