/// <summary>
/// Initializes a new instance of the <see cref="ResultsViewModel"/> class.
/// </summary>
/// <param name="tabName">The tab name string</param>
/// <param name="templateId">Id of template used for recognition</param>
/// <param name="isGenerated">Indicates if template was generated</param>
public ResultsViewModel(string tabName, string templateId, bool isGenerated)
{
this.templateId = templateId;
this.TabName = tabName;
this.IsGeneratedTemplate = isGenerated;
this.PreviewImages = new ObservableCollection <ImagePreviewViewModel>();
this.InitialPreviewPanelVisibility = Visibility.Visible;
this.PresetShown = false;
if (PreprocessingConfigurationManager.CheckConfigExists(this.templateId))
{
this.SelectedPreprocessingConfiguration =
PreprocessingConfiguration.Deserialize(
PreprocessingConfigurationManager.GetConfigByKey(this.templateId));
this.PresetShown = true;
}
ZoomKoefficient = 1;
this.zoomLevel = 1;
this.InitCommands();
if (this.PreviewImages.Count == 0)
{
this.CurrentStage = ResultProcessingStages.NoImages;
}
}
/// <summary>
/// Display preset settings and update configuration after view closed
/// </summary>
private void OnShowPresets()
{
this.PresetShown = true;
PreprocessingPresetsViewModel viewModel = new PreprocessingPresetsViewModel(this.IsGeneratedTemplate,
this.SelectedPreprocessingConfiguration);
if (viewModel.Configuration != null)
{
this.SelectedPreprocessingConfiguration = viewModel.Configuration;
PreprocessingConfigurationManager.AddConfig(this.templateId,
PreprocessingConfiguration.Serialize(this.SelectedPreprocessingConfiguration));
}
}
/// <summary>
/// Preprocess image according to selected configuration
/// </summary>
/// <param name="pathToImage">Path to the image</param>
/// <param name="config">Preprocessing configuration</param>
/// <returns>Preprocessed image data</returns>
private byte[] PreprocessImage(string pathToImage, PreprocessingConfiguration config)
{
long fileLengthKb = new FileInfo(pathToImage).Length / 1024;
// if preprocessing enabled and image size is bigger then threshold preprocess
if (config.IsPreprocessingEnabled && fileLengthKb > config.ExcludeImagesSize)
{
byte[] imageData = ImageProcessor.CompressAndResizeImage(pathToImage, config.JpegCompressionLevel,
config.DesiredWidth, config.DesiredHeight);
return(imageData);
}
// simply pack data without resize
else
{
byte[] imageData = File.ReadAllBytes(pathToImage);
return(imageData);
}
}
