public AddEditTypeImageViewModel(Window window, ITypeImageService images, bool isAddMode)
{
Window = window;
if (window != null)
{
window.Title = $"{(isAddMode ? "Edit" : "Add")} Image";
}
Window.DataContext = this;
IsAddMode = isAddMode;
imageError = isAddMode ? ImageError.NotSpecified : ImageError.NoError;
typeError = isAddMode ? TypeError.NotSpecified : TypeError.NoError;
Accept = new DelegateCommand(e => CloseDialog(true), c => IsValid);
Reject = new DelegateCommand(e => CloseDialog(false));
Browse = new DelegateCommand(BrowseForImageFiles);
ImageService = images;
UpdateErrorMessage(false);
PropertyChanged += (sender, e) =>
{
if (e.PropertyName == "FileName")
{
LoadImageFromFileName(FileName);
}
};
}
public AddEditTypeImageViewModel(Window window, ITypeImageService images, bool isAddMode)
{
this.window = window;
if (window != null)
{
window.Title = string.Format("{0} Image", isAddMode ? "Edit" : "Add");
}
this.window.DataContext = this;
_isAddMode = isAddMode;
imageError = isAddMode ? ImageError.NotSpecified : ImageError.NoError;
typeError = isAddMode ? TypeError.NotSpecified : TypeError.NoError;
Accept = new DelegateCommand(e => CloseDialog(true), c => IsValid);
Reject = new DelegateCommand(e => CloseDialog(false));
Browse = new DelegateCommand(BrowseForImageFiles);
ImageService = images;
UpdateErrorMessage(false);
PropertyChanged += (sender, e) =>
{
if (e.PropertyName == "FileName")
{
LoadImageFromFileName(FileName);
}
};
}
private async Task HandleErrorAsync(ImageError error)
{
SetMemberConfig(Context.User.Id);
var imageErrors = _imageCommandTexts[Context.User.Id]["errors"] as Dictionary <string, object>;
var msg = error switch
{
ImageError.LengthTooShort => imageErrors["length_too_short"].ToString(),
ImageError.LengthTooLong => imageErrors["length_too_long"].ToString(),
ImageError.ImageNotFound => imageErrors["no_result"].ToString(),
_ => string.Empty
};
if (!string.IsNullOrEmpty(msg))
{
await Context.Channel.SendMessageAsync(msg);
}
}
}
private void LoadImageFromFileName(string fileName)
{
var oldImageError = imageError;
try
{
// Check file exists, it should!
var fi = new FileInfo(fileName);
if (fi.Exists)
{
var i = new BitmapImage();
i.BeginInit();
i.UriSource = new Uri(fileName, UriKind.RelativeOrAbsolute);
i.EndInit();
Image = i;
// Some sanity checking.
imageError = i.Width <= 128 && i.Height <= 128 ? ImageError.NoError : ImageError.TooLarge;
}
else
{
Image = null;
imageError = ImageError.NotFound;
}
}
catch (Exception)
{
Image = null;
imageError = ImageError.Unknown;
}
if (imageError != oldImageError)
{
UpdateErrorMessage(true);
}
}
private void LoadImageFromFileName(string fileName)
{
var oldImageError = imageError;
try
{
// Check file exists, it should!
var fi = new FileInfo(fileName);
if (fi.Exists)
{
var i = new BitmapImage();
i.BeginInit();
i.UriSource = new Uri(fileName, UriKind.RelativeOrAbsolute);
i.EndInit();
Image = i;
// Some sanity checking.
imageError = i.Width <= 128 && i.Height <= 128 ? ImageError.NoError : ImageError.TooLarge;
}
else
{
Image = null;
imageError = ImageError.NotFound;
}
}
catch (Exception)
{
Image = null;
imageError = ImageError.Unknown;
}
if (imageError != oldImageError)
{
UpdateErrorMessage(true);
}
}
/// <summary>
/// Creates a flow document of the report data
/// </summary>
/// <returns></returns>
/// <exception cref="ArgumentException">Flow document must have a specified page height</exception>
/// <exception cref="ArgumentException">Flow document must have a specified page width</exception>
/// <exception cref="ArgumentException">"Flow document must have only one ReportProperties section, but it has {0}"</exception>
public FlowDocument CreateFlowDocument()
{
MemoryStream mem = new MemoryStream();
byte[] buf = Encoding.UTF8.GetBytes(_xamlData);
mem.Write(buf, 0, buf.Length);
mem.Position = 0;
FlowDocument res = XamlReader.Load(mem) as FlowDocument;
if (res.PageHeight == double.NaN)
{
throw new ArgumentException("Flow document must have a specified page height");
}
if (res.PageWidth == double.NaN)
{
throw new ArgumentException("Flow document must have a specified page width");
}
// remember original values
_pageHeight = res.PageHeight;
_pageWidth = res.PageWidth;
// search report properties
DocumentWalker walker = new DocumentWalker();
List <SectionReportHeader> headers = walker.Walk <SectionReportHeader>(res);
List <SectionReportFooter> footers = walker.Walk <SectionReportFooter>(res);
List <ReportProperties> properties = walker.Walk <ReportProperties>(res);
if (properties.Count > 0)
{
if (properties.Count > 1)
{
throw new ArgumentException(String.Format("Flow document must have only one ReportProperties section, but it has {0}", properties.Count));
}
ReportProperties prop = properties[0];
if (prop.ReportName != null)
{
ReportName = prop.ReportName;
}
if (prop.ReportTitle != null)
{
ReportTitle = prop.ReportTitle;
}
if (headers.Count > 0)
{
PageHeaderHeight = headers[0].PageHeaderHeight;
}
if (footers.Count > 0)
{
PageFooterHeight = footers[0].PageFooterHeight;
}
// remove properties section from FlowDocument
DependencyObject parent = prop.Parent;
if (parent is FlowDocument)
{
((FlowDocument)parent).Blocks.Remove(prop); parent = null;
}
if (parent is Section)
{
((Section)parent).Blocks.Remove(prop); parent = null;
}
}
// make height smaller to have enough space for page header and page footer
res.PageHeight = _pageHeight - _pageHeight * (PageHeaderHeight + PageFooterHeight) / 100d;
// search image objects
List <Image> images = new List <Image>();
walker.Tag = images;
walker.VisualVisited += new DocumentVisitedEventHandler(walker_VisualVisited);
walker.Walk(res);
// load all images
foreach (Image image in images)
{
if (ImageProcessing != null)
{
ImageProcessing(this, new ImageEventArgs(this, image));
}
try
{
if (image.Tag is string)
{
image.Source = new BitmapImage(new Uri("file:///" + Path.Combine(_xamlImagePath, image.Tag.ToString())));
}
}
catch (Exception ex)
{
// fire event on exception and check for Handled = true after each invoke
if (ImageError != null)
{
bool handled = false;
lock (ImageError)
{
ImageErrorEventArgs eventArgs = new ImageErrorEventArgs(ex, this, image);
foreach (var ed in ImageError.GetInvocationList())
{
ed.DynamicInvoke(this, eventArgs);
if (eventArgs.Handled)
{
handled = true; break;
}
}
}
if (!handled)
{
throw;
}
}
else
{
throw;
}
}
if (ImageProcessed != null)
{
ImageProcessed(this, new ImageEventArgs(this, image));
}
// TODO: find a better way to specify file names
}
return(res);
}
private void mapImage_ImageFailed(object sender, ExceptionRoutedEventArgs e)
{
DropShadowPanel1.Visibility = Visibility.Visible;
ImageError.Begin();
}
