Package control

package control

Provides the classes necessary to control the application logic.

This package includes utility classes for displaying alerts, handling (log-)messages, and managing the overall logics of the application as well as handling the application settings and loading shipping rules from a file.

Classes in this package:

• Calculator - Manages the calculation of package dimensions and weight.
• MessageHandler - Handles displaying messages and alerts to the user.
• SettingsManager - Manages application settings and notifies listeners of changes.
• ShippingRuleLoader - Loads shipping rules from a file and provides sorted access to them and finding the best rule for a given package.

Class	Description
Calculator	The Calculator class provides methods for calculating shipping costs based on packet dimensions and weight.
MessageHandler	The MessageHandler class provides utility methods for displaying messages and alerts.
SettingsManager	The SettingsManager class provides methods for managing user settings and notifying listeners of changes.
SettingsManager.SettingsListener	The SettingsListener interface provides a method for notifying listeners when settings change.
ShippingRuleLoader	The ShippingRuleLoader class loads shipping rules from a JSON file and provides a method to retrieve them as a list of ShippingRule objects.