public HexAdornmentLayerElementImpl(VSTE.AdornmentPositioningBehavior behavior, HexBufferSpan?visualSpan, object tag, UIElement adornment, VSTE.AdornmentRemovedCallback removedCallback)
{
Adornment = adornment;
Behavior = behavior;
RemovedCallback = removedCallback;
Tag = tag;
VisualSpan = visualSpan;
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="adornment">Adornment element</param>
/// <param name="removalCallback">Called when the adornment is removed, may be null</param>
/// <param name="topSpace">Top space or null to use the default value</param>
/// <param name="baseline">Base line or null to use the default value</param>
/// <param name="textHeight">Text height or null to use the default value</param>
/// <param name="bottomSpace">Bottom space or null to use the default value</param>
/// <param name="affinity">Position affinity or null to use the default value</param>
public HexIntraTextAdornmentTag(UIElement adornment, VSTE.AdornmentRemovedCallback removalCallback, double?topSpace, double?baseline, double?textHeight, double?bottomSpace, VST.PositionAffinity?affinity)
{
Adornment = adornment ?? throw new ArgumentNullException(nameof(adornment));
RemovalCallback = removalCallback;
TopSpace = topSpace;
Baseline = baseline;
TextHeight = textHeight;
BottomSpace = bottomSpace;
Affinity = affinity;
}
bool AddAdornment(AdornmentTagInfo adornmentInfo, HexViewLine line)
{
SizeChangedEventHandler sizeChanged = (a, e) => {
var bounds = line.GetAdornmentBounds(adornmentInfo);
if (bounds == null)
{
return;
}
// Sometimes the size just gets changed very little, eg. from 400 to 399.95.....
const double d = 0.5;
if (e.NewSize.Height <= bounds.Value.Height + d && e.NewSize.Width <= bounds.Value.Width + d)
{
return;
}
tagger?.RefreshSpans(new HexBufferSpanEventArgs(adornmentInfo.BufferSpan));
};
adornmentInfo.TopUIElement.SizeChanged += sizeChanged;
VSTE.AdornmentRemovedCallback removedCallback = (a, b) => {
adornmentTagInfos.Remove(adornmentInfo);
adornmentInfo.TopUIElement.SizeChanged -= sizeChanged;
adornmentInfo.TopUIElement.OnRemoved();
if (adornmentInfo.HexTagSpan != null)
{
adornmentInfo.HexTagSpan.Tag.RemovalCallback?.Invoke(adornmentInfo.HexTagSpan, b);
}
else
{
adornmentInfo.HexTextTagSpan.Tag.RemovalCallback?.Invoke(adornmentInfo.HexTextTagSpan, b);
}
};
Debug.Assert(!adornmentTagInfos.Contains(adornmentInfo));
adornmentTagInfos.Add(adornmentInfo);
// Use OwnerControlled because there are corner cases that the adornment layer can't handle,
// eg. an adornment with buffer span length == 0 that is shown on its own line (word wrap).
bool added = layer.AddAdornment(VSTE.AdornmentPositioningBehavior.OwnerControlled, (HexBufferSpan?)null, adornmentInfo, adornmentInfo.TopUIElement, removedCallback);
if (!added)
{
removedCallback(null, adornmentInfo.TopUIElement);
}
return(added);
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="adornment">Adornment element</param>
/// <param name="removalCallback">Called when the adornment is removed, may be null</param>
public HexIntraTextAdornmentTag(UIElement adornment, VSTE.AdornmentRemovedCallback removalCallback)
: this(adornment, removalCallback, null, null, null, null, null)
{
}
/// <summary>
/// Constructor
/// </summary>
/// <param name="adornment">Adornment element</param>
/// <param name="removalCallback">Called when the adornment is removed, may be null</param>
/// <param name="affinity">Position affinity or null to use the default value</param>
public HexIntraTextAdornmentTag(UIElement adornment, VSTE.AdornmentRemovedCallback removalCallback, VST.PositionAffinity?affinity)
: this(adornment, removalCallback, null, null, null, null, affinity)
{
}
/// <summary>
/// Adds an adornment. Returns true if the adornment was added.
/// </summary>
/// <param name="behavior">Positioning behavior</param>
/// <param name="line">Line</param>
/// <param name="tag">Tag</param>
/// <param name="adornment">Adornment</param>
/// <param name="removedCallback">Called when the adornment is removed</param>
/// <returns></returns>
public bool AddAdornment(VSTE.AdornmentPositioningBehavior behavior, HexBufferLine line, object tag, UIElement adornment, VSTE.AdornmentRemovedCallback removedCallback)
{
if (line == null)
{
throw new ArgumentNullException(nameof(line));
}
return(AddAdornment(behavior, line.BufferSpan, tag, adornment, removedCallback));
}
/// <summary> /// Adds an adornment. Returns true if the adornment was added. /// </summary> /// <param name="behavior">Positioning behavior</param> /// <param name="visualSpan">Span</param> /// <param name="tag">Tag</param> /// <param name="adornment">Adornment</param> /// <param name="removedCallback">Called when the adornment is removed</param> /// <returns></returns> public abstract bool AddAdornment(VSTE.AdornmentPositioningBehavior behavior, HexBufferSpan?visualSpan, object tag, UIElement adornment, VSTE.AdornmentRemovedCallback removedCallback);
public override bool AddAdornment(VSTE.AdornmentPositioningBehavior behavior, HexBufferSpan?visualSpan, object tag, UIElement adornment, VSTE.AdornmentRemovedCallback removedCallback)
{
if (adornment == null)
{
throw new ArgumentNullException(nameof(adornment));
}
if (visualSpan != null && visualSpan.Value.IsDefault)
{
throw new ArgumentException();
}
if (visualSpan == null && behavior == VSTE.AdornmentPositioningBehavior.TextRelative)
{
throw new ArgumentNullException(nameof(visualSpan));
}
if ((uint)behavior > (uint)VSTE.AdornmentPositioningBehavior.TextRelative)
{
throw new ArgumentOutOfRangeException(nameof(behavior));
}
if (layerKind != HexLayerKind.Normal)
{
if (behavior != VSTE.AdornmentPositioningBehavior.OwnerControlled)
{
throw new ArgumentOutOfRangeException(nameof(behavior), "Special layers must use AdornmentPositioningBehavior.OwnerControlled");
}
if (visualSpan != null)
{
throw new ArgumentOutOfRangeException(nameof(visualSpan), "Special layers must use a null visual span");
}
}
bool canAdd = visualSpan == null || HexView.HexViewLines.IntersectsBufferSpan(visualSpan.Value);
if (canAdd)
{
var layerElem = new HexAdornmentLayerElementImpl(behavior, visualSpan, tag, adornment, removedCallback);
canvas.Children.Add(layerElem.Adornment);
adornmentLayerElements.Add(layerElem);
}
return(canAdd);
}
