/// <summary>
/// Handles the <see cref="ButtonBase.Click"/> event for the "Change Default Contents" <see
/// cref="Button"/>.</summary>
/// <param name="sender">
/// The <see cref="Object"/> where the event handler is attached.</param>
/// <param name="args">
/// A <see cref="RoutedEventArgs"/> object containing event data.</param>
/// <remarks><para>
/// <b>OnChangeDefault</b> shows an error message if the current scenario does not define
/// any background terrains.
/// </para><para>
/// Otherwise, <b>OnChangeDefault</b> displays a <see cref="Dialog.ChangeSite"/> dialog for
/// the default terrain stack of the current <see cref="AreaSection"/>, and sets the <see
/// cref="SectionTabItem.DataChanged"/> and <see cref="ScenarioChanged"/> flags and calls
/// <see cref="Synchronize()"/> if the user made any changes.</para></remarks>
private void OnChangeDefault(object sender, RoutedEventArgs args)
{
args.Handled = true;
// abort if there are no background terrains
if (!AnyBackgroundTerrain())
{
MessageBox.Show(MainWindow.Instance,
Global.Strings.DialogBackgroundNone, Global.Strings.TitleAreaInvalid,
MessageBoxButton.OK, MessageBoxImage.Information);
return;
}
// adopt pending user changes
if (WorldChanged)
{
Synchronize();
}
// show dialog and let user make changes
var dialog = new Dialog.ChangeSite(null, null, EntityCategory.Terrain);
dialog.Owner = MainWindow.Instance;
dialog.ShowDialog();
// broadcast data changes, if any
if (dialog.DataChanged)
{
SectionTab.DataChanged = true;
ScenarioChanged = true;
Synchronize();
}
}
/// <summary>
/// Handles the <see cref="ButtonBase.Click"/> event for the "Change Site Contents" <see
/// cref="Button"/>.</summary>
/// <param name="sender">
/// The <see cref="Object"/> where the event handler is attached.</param>
/// <param name="args">
/// A <see cref="RoutedEventArgs"/> or <see cref="EventArgs{Boolean}"/> object containing
/// event data.</param>
/// <remarks><para>
/// <b>OnChangeSite</b> shows an error message if the current scenario does not define any
/// background terrains.
/// </para><para>
/// Otherwise, <b>OnChangeSite</b> displays a <see cref="Dialog.ChangeSite"/> dialog for the
/// selected <see cref="Site"/>, and sets the <see cref="SectionTabItem.DataChanged"/> and
/// <see cref="WorldChanged"/> flags if the user made any changes.
/// </para><para>
/// If <paramref name="args"/> is an <see cref="EventArgs{Boolean}"/> object whose <see
/// cref="EventArgs{T}.Value"/> is <c>true</c>, the <see cref="Dialog.ChangeSite"/> dialog
/// will default to the first <see cref="EntityCategory"/> whose site stack is not empty,
/// rather than to <see cref="EntityCategory.Terrain"/>.</para></remarks>
private void OnChangeSite(object sender, EventArgs args)
{
RoutedEventArgs routedArgs = args as RoutedEventArgs;
if (routedArgs != null)
{
routedArgs.Handled = true;
}
// abort if no site selected
if (this._selection == null)
{
return;
}
// abort if there are no background terrains
if (!AnyBackgroundTerrain())
{
MessageBox.Show(MainWindow.Instance,
Global.Strings.DialogBackgroundNone, Global.Strings.TitleAreaInvalid,
MessageBoxButton.OK, MessageBoxImage.Information);
return;
}
// determine initial tab page for dialog
EntityCategory category = EntityCategory.Terrain;
EventArgs <Boolean> booleanArgs = args as EventArgs <Boolean>;
// select first non-empty category, if any
if (booleanArgs != null && booleanArgs.Value)
{
if (this._selection.Units.Count > 0)
{
category = EntityCategory.Unit;
}
else if (this._selection.Effects.Count > 0)
{
category = EntityCategory.Effect;
}
else
{
category = EntityCategory.Unit;
}
}
// show "Change Site Contents" dialog
var dialog = new Dialog.ChangeSite(this._selection, OwnerCombo.Items, category);
dialog.Owner = MainWindow.Instance;
dialog.ShowDialog();
// broadcast data changes, if any
if (dialog.DataChanged)
{
this._worldState.CreateSite(this._selection);
WorldChanged = true;
SectionTab.DataChanged = true;
MapView.Redraw();
}
}