private void Vm_PropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
{
BoreIntervalVM vm = sender as BoreIntervalVM;
switch (e.PropertyName)
{
case nameof(vm.LowerDepth):
case nameof(vm.UpperDepth):
effectiveActivateIntervalImagesCommand.RaiseCanExecuteChanged();
break;
}
}
private void Initialize()
{
effectiveActivateIntervalImagesCommand = new DelegateCommand(obj =>
{
//activating the command that are set externally
ActivateIntervalImagesCommand.Execute(obj);
///now performing additional actions
MessageBox.Show("Геологи!!! Разметка фотографии начинается с верхнего фрагмента керна!", "Направление разметки фото", MessageBoxButton.OK, MessageBoxImage.Exclamation);
PhotoCalibratedBoreIntervalVM vm = obj as PhotoCalibratedBoreIntervalVM;
if (vm.ImagesCount == 0)
{
vm.AddNewImageCommand.Execute(null);
}
}, obj =>
{
//checking extrernally set conditions
bool externalCanExecute = ActivateIntervalImagesCommand.CanExecute(obj);
//checking local conditions
PhotoCalibratedBoreIntervalVM vm = obj as PhotoCalibratedBoreIntervalVM;
return(externalCanExecute && !double.IsNaN(vm.UpperDepth) && !double.IsNaN(vm.LowerDepth) && (vm.LowerDepth > vm.UpperDepth));
}
);
intervals.CollectionChanged += Intervals_CollectionChanged;
Intervals.Add(new PhotoCalibratedBoreIntervalVM(imageStorage));
AddNewCommand = new DelegateCommand(() =>
{
Intervals.Add(new PhotoCalibratedBoreIntervalVM(imageStorage));
});
RemoveIntervalCommand = new DelegateCommand((arg) =>
{
BoreIntervalVM biVM = arg as BoreIntervalVM;
if (!(double.IsNaN(biVM.UpperDepth) || double.IsNaN(biVM.LowerDepth)))
{
var result = MessageBox.Show(string.Format("Вы уверены, что хотите идалить интервал отбора {0} - {1}? Ассоциированные с ним фотографии керна будут удалены из проекта.", biVM.UpperDepth, biVM.LowerDepth), "Удаление интервала отбора", MessageBoxButton.OKCancel, MessageBoxImage.Question);
if (result == MessageBoxResult.OK)
{
//System.Diagnostics.Debug.WriteLine("delete "+arg.ToString()+" request");
Intervals.Remove(biVM);
}
}
else
{
Intervals.Remove(biVM);
}
});
}
private void Intervals_CollectionChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
{
RaisePropertyChanged(nameof(HasIntervals));
if (e.NewItems != null)
{
foreach (object obj in e.NewItems)
{
BoreIntervalVM vm = obj as BoreIntervalVM;
vm.PropertyChanged += Vm_PropertyChanged;
}
}
if (e.OldItems != null)
{
foreach (object obj in e.OldItems)
{
BoreIntervalVM vm = obj as BoreIntervalVM;
vm.PropertyChanged -= Vm_PropertyChanged;
}
}
}