public void GemButtonClick(Item gem, Control relativeTo, Action <Item> callback)
{
gemCallback = null;
ComparisonGemList.SelectedItem = gem;
GeneralTransform gt = relativeTo.TransformToVisual(LayoutRoot);
Point offset = gt.Transform(new Point(relativeTo.ActualWidth + 4, 0));
GemPopup.VerticalOffset = offset.Y;
GemPopup.HorizontalOffset = offset.X;
ComparisonGemList.Measure(App.Current.RootVisual.RenderSize);
// this doesn't work in WPF
// The specified Visual and this Visual do not share a common ancestor, so there is no valid transformation between the two Visuals.
#if SILVERLIGHT
GeneralTransform transform = relativeTo.TransformToVisual(App.Current.RootVisual);
double distBetweenBottomOfPopupAndBottomOfWindow =
App.Current.RootVisual.DesiredSize.Height -
transform.Transform(new Point(0, ComparisonGemList.DesiredSize.Height)).Y;
if (distBetweenBottomOfPopupAndBottomOfWindow < 0)
{
GemPopup.VerticalOffset += distBetweenBottomOfPopupAndBottomOfWindow;
}
#else
// use PlacementTarget for WPF
GemPopup.PlacementTarget = LayoutRoot;
#endif
ComparisonGemList.IsShown = true;
GemPopup.IsOpen = true;
ComparisonGemList.Focus();
gemCallback = callback;
}
public void GemButtonClick(Item gem, Control relativeTo, Action <Item> callback)
{
gemCallback = null;
ComparisonGemList.SelectedItem = gem;
GeneralTransform gt = relativeTo.TransformToVisual(LayoutRoot);
Point offset = gt.Transform(new Point(relativeTo.ActualWidth + 4, 0));
GemPopup.VerticalOffset = offset.Y;
GemPopup.HorizontalOffset = offset.X;
ComparisonGemList.Measure(App.Current.RootVisual.RenderSize);
GeneralTransform transform = relativeTo.TransformToVisual(App.Current.RootVisual);
double distBetweenBottomOfPopupAndBottomOfWindow =
App.Current.RootVisual.DesiredSize.Height -
transform.Transform(new Point(0, ComparisonGemList.DesiredSize.Height)).Y;
if (distBetweenBottomOfPopupAndBottomOfWindow < 0)
{
GemPopup.VerticalOffset += distBetweenBottomOfPopupAndBottomOfWindow;
}
ComparisonGemList.IsShown = true;
GemPopup.IsOpen = true;
ComparisonGemList.Focus();
gemCallback = callback;
}