/// <summary>
/// Loads template image located by specified path
/// </summary>
/// <param name="path">Path to image</param>
private void LoadTemplateImageFromFile(string path)
{
double monitorWidth, monitorHeight;
ResolutionUtility.GetMonitorResolution(out monitorWidth, out monitorHeight);
FileInfo fileInfo = new FileInfo(path);
this.ImageSizeInBytes = fileInfo.Length;
this.TemplateImageName = fileInfo.Name;
this.ImageFileFormat = fileInfo.Extension;
if (!ResolutionUtility.CheckImageSize(fileInfo))
{
return;
}
this.TemplateImage = new BitmapImage(new Uri("file://" + path));
if (this.TemplateImage.PixelWidth < 1200 || this.TemplateImage.PixelHeight < 1700)
{
DialogManager.ShowImageSizeWarning();
}
ZoomKoefficient = monitorWidth / this.TemplateImage.PixelWidth < 1
? monitorWidth / this.TemplateImage.PixelWidth
: 1;
this.OnPropertyChanged(nameof(this.PageScale));
}
/// <summary>
/// Converts template data model to template view model
/// </summary>
/// <param name="template">OmrTemplate to convert</param>
/// <returns>Resulting TemplateViewModel</returns>
public static TemplateViewModel ConvertModelToViewModel(OmrTemplate template)
{
TemplateViewModel templateViewModel = new TemplateViewModel("Loaded template");
templateViewModel.TemplateId = template.TemplateId;
templateViewModel.FinalizationComplete = template.FinalizationComplete;
OmrPage page = template.Pages[0];
templateViewModel.TemplateImageName = page.ImageName;
templateViewModel.ImageFileFormat = page.ImageFormat;
List <BaseQuestionViewModel> elements = new List <BaseQuestionViewModel>();
foreach (OmrElement modelElement in page.Elements)
{
if (modelElement is ChoiceBoxElement)
{
var choiceBoxViewModel = CreateChoiceBoxViewModel((ChoiceBoxElement)modelElement);
elements.Add(choiceBoxViewModel);
}
else if (modelElement is GridElement)
{
var gridViewModel = CreateGridViewModel((GridElement)modelElement);
elements.Add(gridViewModel);
}
}
templateViewModel.AddQuestions(elements);
if (page.ImageData != null)
{
// loading from file
double monitorWidth, monitorHeight;
ResolutionUtility.GetMonitorResolution(out monitorWidth, out monitorHeight);
var image = TemplateSerializer.DecompressImage(page.ImageData);
templateViewModel.TemplateImage = image;
templateViewModel.PageWidth = page.Width;
templateViewModel.PageHeight = page.Height;
TemplateViewModel.ZoomKoefficient = image.PixelWidth / page.Width < 1
? image.PixelWidth / page.Width
: 1;
}
else
{
// processing server response
templateViewModel.PageWidth = page.Width;
templateViewModel.PageHeight = page.Height;
}
return(templateViewModel);
}
/// <summary>
/// Updates images at main area according to selected preview image
/// </summary>
private void UpdateMainImage()
{
string path = this.SelectedPreviewImage.PathToImage;
this.MainImage = new BitmapImage(new Uri("file://" + path));
double monitorWidth, monitorHeight;
ResolutionUtility.GetMonitorResolution(out monitorWidth, out monitorHeight);
ZoomKoefficient = monitorWidth / this.MainImage.PixelWidth < 1
? monitorWidth / this.MainImage.PixelWidth
: 1;
this.OnPropertyChanged(nameof(this.PageScale));
}