void UpdateToolTipContent(IWpfTextViewLine line)
{
IGlyphTextMarkerHandlerContext glyphTextMarkerHandlerContext = null;
foreach (var marker in glyphTextViewMarkerService.GetSortedGlyphTextMarkers(line))
{
if (glyphTextMarkerHandlerContext == null)
{
glyphTextMarkerHandlerContext = new GlyphTextMarkerHandlerContext(wpfTextViewHost, margin, line);
}
var toolTipContent = marker.Handler.GetToolTipContent(glyphTextMarkerHandlerContext, marker);
if (toolTipContent != null)
{
Debug.Assert(toolTip == null);
toolTipMarker = marker;
toolTip = new ToolTip();
toolTip.SetResourceReference(FrameworkElement.StyleProperty, "GlyphTextMarkerToolTipStyle");
PopupHelper.SetScaleTransform(wpfTextViewHost.TextView, toolTip);
toolTip.Content = new TextBlock {
Text = toolTipContent,
TextWrapping = TextWrapping.Wrap,
};
toolTip.Placement = PlacementMode.Relative;
toolTip.PlacementTarget = margin.VisualElement;
toolTip.HorizontalOffset = 0;
toolTip.VerticalOffset = toolTipLine.TextBottom - wpfTextViewHost.TextView.ViewportTop + 1;
toolTip.IsOpen = true;
return;
}
}
}
void AddPopupContent(IWpfTextViewLine line, IGlyphTextMarker marker, FrameworkElement popupContent)
{
// We must close it or it refuses to use the new scale transform
popup.IsOpen = false;
popupTopViewLinePosition = wpfTextViewHost.TextView.TextViewLines.FirstVisibleLine.Start.Position;
popupMarker = marker;
popup.Child = popupContent;
popup.Placement = PlacementMode.Relative;
popup.PlacementTarget = margin.VisualElement;
popup.HorizontalOffset = margin.VisualElement.Width - 1;
var popupContentHeight = popupContent.Height;
Debug.Assert(!double.IsNaN(popupContentHeight), "You must initialize the Height property of the popup content!");
if (double.IsNaN(popupContentHeight))
{
popupContentHeight = 0;
}
popup.VerticalOffset = line.TextTop - wpfTextViewHost.TextView.ViewportTop + 1 - popupContentHeight;
popup.Visibility = Visibility.Visible;
PopupHelper.SetScaleTransform(wpfTextViewHost.TextView, popup);
popup.IsOpen = true;
}
public Geometry PositionAndDisplay(Geometry reservedSpace)
{
var spanBoundsTmp = GetVisualSpanBounds();
if (spanBoundsTmp == null || spanBoundsTmp.Value.IsEmpty)
{
return(null);
}
var spanBounds = WpfTextViewRectToScreenRect(spanBoundsTmp.Value);
var desiredSize = ToScreenSize(PopupSize);
var screen = new Screen(wpfTextView.VisualElement);
var screenRect = screen.IsValid ? screen.DisplayRect : SystemParameters.WorkArea;
Rect?popupRect = null;
if ((style & PopupStyles.PositionClosest) != 0)
{
foreach (var pos in GetValidPositions(screenRect, reservedSpace, desiredSize, spanBounds, style))
{
popupRect = GetClosest(spanBounds, popupRect, pos, style);
}
}
else
{
foreach (var pos in GetValidPositions(screenRect, reservedSpace, desiredSize, spanBounds, style))
{
popupRect = pos;
break;
}
}
if (popupRect == null)
{
return(null);
}
var viewRelativeRect = PopupHelper.TransformFromDevice(wpfTextView, popupRect.Value);
bool isOpen = popup.IsOpen;
if (!isOpen)
{
AddEvents();
}
if (popupZoomLevel != wpfTextView.ZoomLevel)
{
// Must set IsOpen to false when setting a new scale transform
popup.IsOpen = false;
PopupHelper.SetScaleTransform(wpfTextView, popup);
popupZoomLevel = wpfTextView.ZoomLevel;
}
if (!isOpen)
{
popup.Child = content;
popup.Visibility = Visibility.Visible;
}
popup.VerticalOffset = viewRelativeRect.Top;
popup.HorizontalOffset = viewRelativeRect.Left;
popup.IsOpen = true;
return(new RectangleGeometry(popupRect.Value));
}