Filtration/Filtration/ViewModels/ToolPanes/BlockOutputPreviewViewModel.cs

81 lines
2.5 KiB
C#

using System;
using System.Windows.Media.Imaging;
using Filtration.Parser.Interface.Services;
using GalaSoft.MvvmLight.Messaging;
namespace Filtration.ViewModels.ToolPanes
{
internal interface IBlockOutputPreviewViewModel : IToolViewModel
{
bool IsVisible { get; set; }
void ClearDown();
}
internal class BlockOutputPreviewViewModel : ToolViewModel, IBlockOutputPreviewViewModel
{
private readonly IItemFilterBlockTranslator _itemFilterBlockTranslator;
private string _previewText;
public BlockOutputPreviewViewModel(IItemFilterBlockTranslator itemFilterBlockTranslator) : base("Block Output Preview")
{
_itemFilterBlockTranslator = itemFilterBlockTranslator;
ContentId = ToolContentId;
var icon = new BitmapImage();
icon.BeginInit();
icon.UriSource = new Uri("pack://application:,,,/Filtration;component/Resources/Icons/block_output_preview_icon.png");
icon.EndInit();
IconSource = icon;
IsVisible = false;
Messenger.Default.Register<NotificationMessage>(this, message =>
{
switch (message.Notification)
{
case "SelectedBlockChanged":
{
OnSelectedBlockChanged(this, EventArgs.Empty);
break;
}
case "ActiveDocumentChanged":
{
OnSelectedBlockChanged(this, EventArgs.Empty);
break;
}
}
});
}
public const string ToolContentId = "BlockOutputPreviewTool";
public string PreviewText
{
get { return _previewText; }
private set
{
_previewText = value;
RaisePropertyChanged();
}
}
public void ClearDown()
{
PreviewText = string.Empty;
}
private void OnSelectedBlockChanged(object sender, EventArgs e)
{
if (AvalonDockWorkspaceViewModel.ActiveScriptViewModel?.SelectedBlockViewModel == null)
{
PreviewText = string.Empty;
return;
}
PreviewText =
_itemFilterBlockTranslator.TranslateItemFilterBlockToString(
AvalonDockWorkspaceViewModel.ActiveScriptViewModel.SelectedBlockViewModel.Block);
}
}
}