/// <summary>
/// Initializes a new instance of the <see cref="ChangeOverlay"/> class with the specified
/// <see cref="OverlayImage"/>.</summary>
/// <param name="editing">
/// <c>true</c> to edit the <see cref="EditorOptions.Overlay"/> defined by the current <see
/// cref="EditorOptions"/>; <c>false</c> to edit the <see cref="AreaSection.Overlay"/>
/// defined by the current <see cref="AreaSection"/>.</param>
/// <exception cref="InvalidOperationException">
/// <paramref name="editing"/> is <c>true</c>, and <see cref="ApplicationInfo.IsEditor"/> is
/// <c>false</c>.</exception>
/// <remarks>
/// The data of the specified <see cref="OverlayImage"/> may be changed in the dialog, as
/// indicated by the value of the <see cref="DataChanged"/> property.</remarks>
public ChangeOverlay(bool editing)
{
if (editing)
{
ApplicationInfo.CheckEditor();
this._overlay = ApplicationOptions.Instance.Editor.Overlay;
}
else
{
this._overlay = MasterSection.Instance.Areas.Overlay;
}
// copy original data for user cancellation
this._originalOverlay = (OverlayImage)this._overlay.Clone();
this._editing = editing;
InitializeComponent();
// set maximum ranges for image coordinates
LeftUpDown.Minimum = Int32.MinValue;
LeftUpDown.Maximum = Int32.MaxValue;
TopUpDown.Minimum = Int32.MinValue;
TopUpDown.Maximum = Int32.MaxValue;
WidthUpDown.Minimum = 1;
WidthUpDown.Maximum = Int32.MaxValue;
HeightUpDown.Minimum = 1;
HeightUpDown.Maximum = Int32.MaxValue;
// show current map dimensions at 100% scale
var mapBounds = MapViewManager.Instance.MapGrid.DisplayBounds;
MapWidthInfo.Text = mapBounds.Width.ToString("N0", ApplicationInfo.Culture);
MapHeightInfo.Text = mapBounds.Height.ToString("N0", ApplicationInfo.Culture);
BorderWidthInfo.Text = MapView.MapBorder.X.ToString("N0", ApplicationInfo.Culture);
BorderHeightInfo.Text = MapView.MapBorder.Y.ToString("N0", ApplicationInfo.Culture);
// initialize size if at default values
if (this._overlay.Bounds.Width == 1 && this._overlay.Bounds.Height == 1)
{
this._overlay.Bounds = new RectI(
this._overlay.Bounds.Left, this._overlay.Bounds.Top,
Fortran.NInt(mapBounds.Width), Fortran.NInt(mapBounds.Height));
}
// show current overlay data
ShowImagePath();
ShowImageSize();
AspectToggle.IsChecked = this._overlay.PreserveAspectRatio;
LeftUpDown.Value = this._overlay.Bounds.Left;
TopUpDown.Value = this._overlay.Bounds.Top;
WidthUpDown.Value = this._overlay.Bounds.Width;
HeightUpDown.Value = this._overlay.Bounds.Height;
// construction completed
this._initialized = true;
}