UIElement CreateDefaultToolTipUIElement(string description) {
Debug.Assert(!string.IsNullOrEmpty(description));
if (string.IsNullOrEmpty(description))
return null;
var screen = new Screen(wpfTextView?.VisualElement);
var screenWidth = screen.IsValid ? screen.DisplayRect.Width : SystemParameters.WorkArea.Width;
var maxWidth = screenWidth * 0.4;
return new TextBlock {
Text = description,
MaxWidth = maxWidth,
TextWrapping = TextWrapping.Wrap,
};
}
public static Size GetMaxSize(WpfHexView wpfHexView) {
var screen = new Screen(wpfHexView.VisualElement);
var screenRect = screen.IsValid ? screen.DisplayRect : SystemParameters.WorkArea;
var size = TransformFromDevice(wpfHexView, screenRect.Size);
return new Size(size.Width * maxWidthMultiplier, size.Height * maxHeightMultiplier);
}
public override Geometry PositionAndDisplay(Geometry reservedSpace) {
var spanBoundsTmp = GetVisualSpanBounds();
if (spanBoundsTmp == null || spanBoundsTmp.Value.IsEmpty)
return null;
var spanBounds = WpfHexViewRectToScreenRect(spanBoundsTmp.Value);
var desiredSize = ToScreenSize(PopupSize);
var screen = new Screen(wpfHexView.VisualElement);
var screenRect = screen.IsValid ? screen.DisplayRect : SystemParameters.WorkArea;
Rect? popupRect = null;
if ((style & VSTA.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 = HexPopupHelper.TransformFromDevice(wpfHexView, popupRect.Value);
bool isOpen = popup.IsOpen;
if (!isOpen)
AddEvents();
if (popupZoomLevel != wpfHexView.ZoomLevel) {
// Must set IsOpen to false when setting a new scale transform
popup.IsOpen = false;
HexPopupHelper.SetScaleTransform(wpfHexView, popup);
popupZoomLevel = wpfHexView.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);
}