///<summary>Sets up a button that can use data for a range of years.</summary>
///<typeparam name="TRow">The strongly-typed Singularity row that the feature uses. These rows are used to populate the years dropdown.</typeparam>
///<param name="button">The button that initiates the action.</param>
///<param name="yearGetter">A delegate that gets the year represented by a row. This is called to populate the years dropdown.</param>
///<param name="showForm">The method bound to the button.</param>
///<param name="defaultYear">The year used when clicking the button itself. This year will also be bolded in the dropdown. Defaults to the current year.</param>
public static void SetupYearlyButton <TRow>(this BarButtonItem button, Func <TRow, int?> yearGetter, Action <int> showForm, int?defaultYear = null) where TRow : Row
{
if (button == null)
{
throw new ArgumentNullException("button");
}
if (yearGetter == null)
{
throw new ArgumentNullException("yearGetter");
}
if (showForm == null)
{
throw new ArgumentNullException("showForm");
}
defaultYear = defaultYear ?? DateTime.Now.Year;
var menu = new PopupMenu(button.Manager);
button.Disposed += delegate { menu.Dispose(); };
if (button.DropDownSuperTip == null)
{
button.DropDownSuperTip = Utilities.CreateSuperTip(button.Caption, "Shows a " + button.Caption + " for a specific year");
}
button.ButtonStyle = BarButtonStyle.DropDown;
button.DropDownControl = menu;
button.ItemClick += delegate { showForm(defaultYear.Value); };
menu.BeforePopup += delegate {
foreach (var link in menu.ItemLinks.Cast <BarItemLink>().ToList()) //Collection will be modified
{
button.Manager.Items.Remove(link.Item);
}
menu.ItemLinks.Clear();
AppFramework.LoadTable <TRow>();
foreach (int dontUse in AppFramework.Table <TRow>().Rows
.Select(yearGetter)
.Where(y => y.HasValue)
.Distinct()
.OrderByDescending(y => y))
{
int year = dontUse; //Force separate variable per closure
var item = new BarButtonItem(button.Manager, year.ToString(CultureInfo.CurrentCulture));
item.ItemClick += delegate { showForm(year); };
if (year == defaultYear)
{
item.Appearance.Font = new Font(item.Appearance.GetFont(), FontStyle.Bold);
}
menu.AddItem(item);
}
};
}
protected static void CheckDesignTime(AppFramework instance)
{
if (Current != null)
{
return;
}
Current = instance;
RegisterStandardSettings();
//Call CreateDataContext() first so that RegisterSettings()
//can use additional columns created in CreateDataContext()
instance.SyncContext = instance.CreateDataContext();
instance.RegisterSettings();
try {
instance.SyncContext.ReadData();
} catch { instance.SyncContext = instance.CreateDataContext(); } //Ignore SQL errors at design time
}
///<summary>Creates an AutoSaver that saves for the specified application.</summary>
public AutoSaver(AppFramework app)
{
App = app;
timer.Tick += Timer_Tick;
}