/// <summary>
/// Handles the <see cref="ButtonBase.Click"/> event for the "Browse…" <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>
/// <b>OnPathBrowse</b> shows an <see cref="FileDialogs.OpenImageDialog"/> allowing the user
/// to select a new <see cref="OverlayImage.Path"/>, and sets the <see cref="DataChanged"/>
/// flag if the user selects a valid new file path.</remarks>
private void OnPathBrowse(object sender, RoutedEventArgs args)
{
args.Handled = true;
// ask user to enter an existing image
RootedPath path = FileDialogs.OpenImageDialog(this._overlay.Path);
// quit if user cancelled, or entered old or invalid path
if (path == null || path.IsEmpty || path.Equals(this._overlay.Path) ||
!File.Exists(path.AbsolutePath))
{
return;
}
// disable dialog while image loads
IsEnabled = false;
Dispatcher.DoEvents();
// try loading overlay image
this._overlay.Path = path.AbsolutePath;
if (!AreasTabContent.MapView.ShowOverlay(this, this._editing))
{
path.Clear();
}
// broadcast data changes
ShowImagePath();
ShowImageSize();
DataChanged = true;
IsEnabled = true; // reenable dialog
}
/// <summary>
/// Handles the <see cref="ButtonBase.Click"/> event for the "Add File" <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>OnFileAdd</b> displays a <see cref="Dialog.ChangeIdentifier"/> dialog, followed by an
/// <see cref="FileDialogs.OpenImageDialog"/>, allowing the user to define a new image file.
/// </para><para>
/// If the user confirmed both dialogs, <b>OnFileAdd</b> adds the new image file to the
/// "Image File" list view and to the current <see cref="ImageSection"/>, redisplays all
/// images, and sets the <see cref="SectionTabItem.DataChanged"/> flag.</para></remarks>
private void OnFileAdd(object sender, RoutedEventArgs args)
{
args.Handled = true;
// ask user for new image file ID
var files = MasterSection.Instance.Images.ImageFiles;
var dialog = new Dialog.ChangeIdentifier("file-id",
Global.Strings.TitleImageFileIdEnter, files.ContainsKey, false);
dialog.Owner = MainWindow.Instance;
if (dialog.ShowDialog() != true)
{
return;
}
// retrieve new image file ID
string id = String.Intern(dialog.Identifier);
// ask user to select an existing image file
RootedPath path = FileDialogs.OpenImageDialog(null);
// return immediately if user cancelled
if (path.IsEmpty)
{
return;
}
// construct new image file
ImageFile file = new ImageFile(id, path.AbsolutePath);
// try to load image file from disk
if (!LoadImageFile(file, MasterSection.Instance.Images.MaskColor))
{
return;
}
// add image file to section table
files.Add(id, file);
// update list view and select new item
FileList.Items.Refresh();
FileList.SelectAndShow(file);
// broadcast data changes
ImageList.Redraw();
EnableListButtons();
SectionTab.DataChanged = true;
}
/// <summary>
/// Handles the <see cref="ButtonBase.Click"/> event for the "Change Path" <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>OnFileChange</b> displays an <see cref="FileDialogs.OpenImageDialog"/> for the first
/// selected item in the "Image File" list view.
/// </para><para>
/// If the user made any changes, <b>OnFileChange</b> propagates them to the current <see
/// cref="ImageSection"/>, redisplays all class images, and sets the <see
/// cref="SectionTabItem.DataChanged"/> flag.</para></remarks>
private void OnFileChange(object sender, RoutedEventArgs args)
{
args.Handled = true;
// retrieve selected image, if any
ImageFile file = FileList.SelectedItem as ImageFile;
if (file == null)
{
return;
}
// ask user to select an existing image file
RootedPath path = FileDialogs.OpenImageDialog(file.Path);
// return immediately if user cancelled
if (path.IsEmpty)
{
return;
}
// construct new image file object
ImageFile newFile = new ImageFile(file.Id, path.AbsolutePath);
// try to load image file from disk
var imageSection = MasterSection.Instance.Images;
if (!LoadImageFile(newFile, imageSection.MaskColor))
{
return;
}
// replace image file in scenario
file.Unload();
Debug.Assert(file.Id == newFile.Id);
imageSection.ImageFiles[newFile.Id] = newFile;
// broadcast data changes
FileList.Items.Refresh();
ImageList.Redraw();
SectionTab.DataChanged = true;
}
