/// <summary>
/// Adds an image adornment to the repository
/// </summary>
/// <param name="imageAdornment"></param>
internal void Add(ImageAdornment imageAdornment)
{
if (imageAdornment != null && !this.images.Contains(imageAdornment))
{
this.images.Add(imageAdornment);
}
}
/// <summary>
/// Creates a new instance of <see cref="ImageAdornmentInfo"/> based on the image adornment.
/// </summary>
/// <param name="imageAdornment"></param>
internal ImageAdornmentInfo(ImageAdornment imageAdornment)
{
this.Id = imageAdornment.Id;
this.TextViewLineDelta = imageAdornment.TextViewLineDelta;
this.Span = imageAdornment.TrackingSpan.GetSpan(imageAdornment.TrackingSpan.TextBuffer.CurrentSnapshot).Span;
this.Bitmap = imageAdornment.VisualElement.Image.Tag as System.Drawing.Bitmap;
this.Area = new Rect(
imageAdornment.VisualElement.Left,
imageAdornment.VisualElement.Top,
imageAdornment.VisualElement.Width,
imageAdornment.VisualElement.Height
);
}
private void UpdateTargetLocation(ImageAdornment imageAdornment)
{
imageAdornment.RenderTrackingPoint = null;
foreach (ITextViewLine line in View.TextViewLines)
{
var lineArea = new Rect(line.Left, line.Top, line.Width, line.Height);
Rect imageAdornmentArea = imageAdornment.VisualElement.Area;
// Use the height half to be able to move the image up and down
imageAdornmentArea.Height = imageAdornmentArea.Height/2;
if (line.Length > 0 && lineArea.IntersectsWith(imageAdornmentArea))
{
imageAdornment.RenderTrackingPoint = View.TextSnapshot.CreateTrackingPoint(line.Start.Position,
PointTrackingMode.Negative);
imageAdornment.UpdateTrackingSpan(line);
return;
}
}
}
private void Show(ImageAdornment imageAdornment, ITextViewLine targetTextViewLine)
{
if (targetTextViewLine != null)
{
// Update the line delta
imageAdornment.TextViewLineDelta = new Point(imageAdornment.VisualElement.Left - targetTextViewLine.Left,
imageAdornment.VisualElement.Top - targetTextViewLine.Top);
}
AdornmentLayer.RemoveAdornmentsByTag(imageAdornment);
AdornmentLayer.AddAdornment(AdornmentPositioningBehavior.TextRelative,
imageAdornment.TrackingSpan.GetSpan(View.TextSnapshot), imageAdornment,
imageAdornment.VisualElement, null);
UpdateTargetLocation(imageAdornment);
}
private void Show(ImageAdornment imageAdornment)
{
Show(imageAdornment, GetTargetTextViewLine(imageAdornment));
}
private void RemoveImageAdornment(ImageAdornment imageAdornment)
{
ImagesAdornmentsRepository.Remove(imageAdornment);
AdornmentLayer.RemoveAdornment(imageAdornment.VisualElement);
}
private void InitializeImageAdornment(ImageAdornment imageAdornment)
{
imageAdornment.VisualElement.MouseMove += OnAdornmentVisualElementMouseMove;
imageAdornment.VisualElement.MouseLeftButtonDown += OnAdornmentVisualElementMouseLeftButtonDown;
imageAdornment.VisualElement.MouseLeftButtonUp += OnAdornmentVisualElementMouseLeftButtonUp;
imageAdornment.VisualElement.MouseLeave += OnAdornmentVisualElementMouseLeave;
imageAdornment.VisualElement.Deleted += OnAdornmentVisualElementDeleted;
imageAdornment.VisualElement.Resizing += OnImageAdornmentResizing;
}
private void DisplayTextViewLine(ImageAdornment imageAdornment)
{
ITextViewLine textViewLine =
View.TextViewLines.FirstOrDefault(line => imageAdornment.ApplyRenderTrackingPoint(View.TextSnapshot, line));
if (textViewLine != null)
{
View.DisplayTextLineContainingBufferPosition(textViewLine.Start, textViewLine.Top, ViewRelativePosition.Top);
}
else
{
View.DisplayTextLineContainingBufferPosition(new SnapshotPoint(View.TextSnapshot, 0), 0.0, ViewRelativePosition.Top);
}
}
internal ITextViewLine GetTargetTextViewLine(ImageAdornment imageAdornment)
{
if (View.TextViewLines == null)
return null;
return
View.TextViewLines.GetTextViewLineContainingBufferPosition(
imageAdornment.TrackingSpan.GetStartPoint(View.TextSnapshot));
}
/// <summary>
/// Creates and adds an image adornment for the image.
/// </summary>
/// <param name="image"></param>
/// <returns></returns>
internal ImageAdornment AddImageAdornment(Image image)
{
ITextViewLine targetLine = GetTargetTextViewLine(image);
if (targetLine != null && targetLine.Length > 0)
{
var imageAdornment = new ImageAdornment(
new SnapshotSpan(targetLine.Start, targetLine.Length),
image);
// Initialize the image adornment
InitializeImageAdornment(imageAdornment);
// Add the image adornment to the repository
ImagesAdornmentsRepository.Add(imageAdornment);
ImagesAdornmentsRepository.EnsureRepositoryFileExists();
// Add the repository file to the solution explorer
AddFileToTheActiveDocument(ImagesAdornmentsRepository.RepositoryFilename);
// Show the image
Show(imageAdornment);
DisplayTextViewLine(imageAdornment);
return imageAdornment;
}
return null;
}
internal void Load()
{
if (File.Exists(this.RepositoryFilename))
{
using (IResourceReader reader = new ResourceReader(this.RepositoryFilename))
{
try
{
AppDomain.CurrentDomain.AssemblyResolve += new ResolveEventHandler(OnCurrentAppDomainAssemblyResolve);
foreach (DictionaryEntry entry in reader)
{
ImageAdornmentInfo info = entry.Value as ImageAdornmentInfo;
// Convert the bitmap
ImageSource imageSource = GetImageSourceFromBitmap(info.Bitmap);
ImageAdornment imageAdornment = new ImageAdornment(
this.textBuffer.CurrentSnapshot, info, imageSource);
Add(imageAdornment);
}
}
finally
{
AppDomain.CurrentDomain.AssemblyResolve -= new ResolveEventHandler(OnCurrentAppDomainAssemblyResolve);
}
}
}
}
/// <summary>
/// Removes an image adornement form the repository
/// </summary>
/// <param name="imageAdornment"></param>
internal void Remove(ImageAdornment imageAdornment)
{
if (imageAdornment != null && this.images.Contains(imageAdornment))
{
this.images.Remove(imageAdornment);
}
}