List <IconInfo> CreateIconInfos(WpfHexViewLine line)
{
var icons = new List <IconInfo>();
foreach (var glyphTag in GetGlyphTags(line))
{
Debug.Assert(glyphTag != null);
if (glyphTag == null)
{
continue;
}
// Fails if someone forgot to Export(typeof(HexGlyphFactoryProvider)) with the correct tag types
bool b = glyphFactories.TryGetValue(glyphTag.GetType(), out var factoryInfo);
Debug.Assert(b);
if (!b)
{
continue;
}
var elem = factoryInfo.Factory.GenerateGlyph(line, glyphTag);
if (elem == null)
{
continue;
}
elem.Measure(new Size(double.PositiveInfinity, double.PositiveInfinity));
var iconInfo = new IconInfo(factoryInfo.Order, elem);
icons.Add(iconInfo);
// ActualWidth isn't always valid when we're here so use the constant
Canvas.SetLeft(elem, (MARGIN_WIDTH - elem.DesiredSize.Width) / 2);
Canvas.SetTop(elem, iconInfo.BaseTopValue + line.TextTop);
}
return(icons);
}
Geometry GetMarkerGeometry(WpfHexViewLine line, VST.Span span, bool clipToViewport, Thickness padding, bool isLineGeometry)
{
if (line == null)
{
throw new ArgumentNullException(nameof(line));
}
if (!lines.Contains(line))
{
throw new ArgumentException();
}
bool createOutlinedPath = false;
PathGeometry geo = null;
var textBounds = line.GetNormalizedTextBounds(span);
HexMarkerHelper.AddGeometries(hexView, textBounds, isLineGeometry, clipToViewport, padding, 0, ref geo, ref createOutlinedPath);
if (createOutlinedPath)
{
geo = geo.GetOutlinedPathGeometry();
}
if (geo != null && geo.CanFreeze)
{
geo.Freeze();
}
return(geo);
}
void Update(WpfHexViewLine line)
{
Debug.Assert(line.VisibilityState != VSTF.VisibilityState.Unattached);
if (!lineInfos.TryGetValue(line.IdentityTag, out var info))
{
return;
}
lineInfos.Remove(line.IdentityTag);
foreach (var iconInfo in info.Icons)
{
childCanvases[iconInfo.Order].Children.Remove(iconInfo.Element);
}
AddLine(lineInfos, line);
}
IEnumerable <HexGlyphTag> GetGlyphTags(WpfHexViewLine line)
{
foreach (var tagSpan in tagAggregator.GetTags(line.BufferSpan))
{
if (line.IntersectsBufferSpan(tagSpan.Span))
{
yield return(tagSpan.Tag);
}
}
var taggerContext = new HexTaggerContext(line.BufferLine, line.BufferLine.TextSpan);
foreach (var tagSpan in tagAggregator.GetLineTags(taggerContext))
{
yield return(tagSpan.Tag);
}
}
public override UIElement GenerateGlyph(WpfHexViewLine line, HexGlyphTag tag) {
var glyphTag = tag as HexImageReferenceTag;
if (glyphTag == null)
return null;
const double DEFAULT_IMAGE_LENGTH = 16;
const double EXTRA_LENGTH = 2;
double imageLength = Math.Min(DEFAULT_IMAGE_LENGTH, line.Height + EXTRA_LENGTH);
var image = new DsImage {
Width = imageLength,
Height = imageLength,
ImageReference = glyphTag.ImageReference,
};
Panel.SetZIndex(image, glyphTag.ZIndex);
return image;
}
public override UIElement GenerateGlyph(WpfHexViewLine line, HexGlyphTag tag)
{
var glyphTag = tag as HexImageReferenceTag;
if (glyphTag == null)
{
return(null);
}
const double DEFAULT_IMAGE_LENGTH = 16;
const double EXTRA_LENGTH = 2;
double imageLength = Math.Min(DEFAULT_IMAGE_LENGTH, line.Height + EXTRA_LENGTH);
var image = new DsImage {
Width = imageLength,
Height = imageLength,
ImageReference = glyphTag.ImageReference,
};
Panel.SetZIndex(image, glyphTag.ZIndex);
return(image);
}
MarkerElement TryCreateMarkerElement(WpfHexViewLine line, VST.Span span, HexMarkerTag tag)
{
Debug.Assert(tag.Type != null);
return(TryCreateMarkerElementCore(wpfHexView.WpfHexViewLines.GetLineMarkerGeometry(line, span), line.BufferSpan, tag));
}
/// <summary> /// Gets a line marker geometry /// </summary> /// <param name="line">A line in this collection</param> /// <param name="span">Text span</param> /// <returns></returns> public abstract Geometry GetLineMarkerGeometry(WpfHexViewLine line, VST.Span span);
/// <summary> /// Gets a line marker geometry /// </summary> /// <param name="line">A line in this collection</param> /// <param name="span">Text span</param> /// <param name="clipToViewport">true to clip the geometry to the viewport</param> /// <param name="padding">Padding to use</param> /// <returns></returns> public abstract Geometry GetLineMarkerGeometry(WpfHexViewLine line, VST.Span span, bool clipToViewport, Thickness padding);
/// <summary> /// Gets a line marker geometry /// </summary> /// <param name="line">A line in this collection</param> /// <param name="span">Text span</param> /// <param name="clipToViewport">true to clip the geometry to the viewport</param> /// <param name="padding">Padding to use</param> /// <returns></returns> public abstract Geometry GetLineMarkerGeometry(WpfHexViewLine line, VST.Span span, bool clipToViewport, Thickness padding);
/// <summary> /// Gets a text marker geometry /// </summary> /// <param name="line">A line in this collection</param> /// <param name="span">Text span</param> /// <returns></returns> public abstract Geometry GetTextMarkerGeometry(WpfHexViewLine line, VST.Span span);
void Update(WpfHexViewLine line) {
Debug.Assert(line.VisibilityState != VSTF.VisibilityState.Unattached);
LineInfo info;
if (!lineInfos.TryGetValue(line.IdentityTag, out info))
return;
lineInfos.Remove(line.IdentityTag);
foreach (var iconInfo in info.Icons)
childCanvases[iconInfo.Order].Children.Remove(iconInfo.Element);
AddLine(lineInfos, line);
}
public override Geometry GetTextMarkerGeometry(WpfHexViewLine line, VST.Span span, bool clipToViewport, Thickness padding) => GetMarkerGeometry(line, span, clipToViewport, padding, false);
public override Geometry GetTextMarkerGeometry(WpfHexViewLine line, VST.Span span, bool clipToViewport, Thickness padding) => GetMarkerGeometry(line, span, clipToViewport, padding, false);
public override Geometry GetTextMarkerGeometry(WpfHexViewLine line, VST.Span span) => GetMarkerGeometry(line, span, false, HexMarkerHelper.TextMarkerPadding, false);
/// <summary> /// Generates a glyph or returns null /// </summary> /// <param name="line">Line</param> /// <param name="tag">Tag</param> /// <returns></returns> public abstract UIElement GenerateGlyph(WpfHexViewLine line, HexGlyphTag tag);
/// <summary> /// Generates a glyph or returns null /// </summary> /// <param name="line">Line</param> /// <param name="tag">Tag</param> /// <returns></returns> public abstract UIElement GenerateGlyph(WpfHexViewLine line, HexGlyphTag tag);
public override Geometry?GetLineMarkerGeometry(WpfHexViewLine line, VST.Span span) => GetMarkerGeometry(line, span, false, HexMarkerHelper.LineMarkerPadding, true);
/// <summary> /// Gets a text marker geometry /// </summary> /// <param name="line">A line in this collection</param> /// <param name="span">Text span</param> /// <returns></returns> public abstract Geometry?GetTextMarkerGeometry(WpfHexViewLine line, VST.Span span);
Geometry GetMarkerGeometry(WpfHexViewLine line, VST.Span span, bool clipToViewport, Thickness padding, bool isLineGeometry) {
if (line == null)
throw new ArgumentNullException(nameof(line));
if (!lines.Contains(line))
throw new ArgumentException();
bool createOutlinedPath = false;
PathGeometry geo = null;
var textBounds = line.GetNormalizedTextBounds(span);
HexMarkerHelper.AddGeometries(hexView, textBounds, isLineGeometry, clipToViewport, padding, 0, ref geo, ref createOutlinedPath);
if (createOutlinedPath)
geo = geo.GetOutlinedPathGeometry();
if (geo != null && geo.CanFreeze)
geo.Freeze();
return geo;
}
public override Geometry GetTextMarkerGeometry(WpfHexViewLine line, VST.Span span) => GetMarkerGeometry(line, span, false, HexMarkerHelper.TextMarkerPadding, false);
List<IconInfo> CreateIconInfos(WpfHexViewLine line) {
var icons = new List<IconInfo>();
foreach (var glyphTag in GetGlyphTags(line)) {
Debug.Assert(glyphTag != null);
if (glyphTag == null)
continue;
GlyphFactoryInfo factoryInfo;
// Fails if someone forgot to Export(typeof(HexGlyphFactoryProvider)) with the correct tag types
bool b = glyphFactories.TryGetValue(glyphTag.GetType(), out factoryInfo);
Debug.Assert(b);
if (!b)
continue;
var elem = factoryInfo.Factory.GenerateGlyph(line, glyphTag);
if (elem == null)
continue;
elem.Measure(new Size(double.PositiveInfinity, double.PositiveInfinity));
var iconInfo = new IconInfo(factoryInfo.Order, elem);
icons.Add(iconInfo);
// ActualWidth isn't always valid when we're here so use the constant
Canvas.SetLeft(elem, (MARGIN_WIDTH - elem.DesiredSize.Width) / 2);
Canvas.SetTop(elem, iconInfo.BaseTopValue + line.TextTop);
}
return icons;
}
IEnumerable<HexGlyphTag> GetGlyphTags(WpfHexViewLine line) {
foreach (var tagSpan in tagAggregator.GetTags(line.BufferSpan)) {
if (line.IntersectsBufferSpan(tagSpan.Span))
yield return tagSpan.Tag;
}
var taggerContext = new HexTaggerContext(line.BufferLine, line.BufferLine.TextSpan);
foreach (var tagSpan in tagAggregator.GetLineTags(taggerContext))
yield return tagSpan.Tag;
}
MarkerElement TryCreateMarkerElement(WpfHexViewLine line, VST.Span span, HexMarkerTag tag) {
Debug.Assert(tag.Type != null);
return TryCreateMarkerElementCore(wpfHexView.WpfHexViewLines.GetLineMarkerGeometry(line, span), line.BufferSpan, tag);
}
