private static void CreateEffectAdorner(DropInfo dropInfo)
{
var template = GetEffectAdornerTemplate(m_DragInfo.VisualSource, dropInfo.Effects, dropInfo.DestinationText);
if (template != null)
{
var rootElement = RootElementFinder.FindRoot(dropInfo.VisualTarget ?? m_DragInfo.VisualSource);
var adornment = new ContentPresenter();
adornment.Content = m_DragInfo.Data;
adornment.ContentTemplate = template;
EffectAdorner = new DragAdorner(rootElement, adornment, dropInfo.Effects);
}
}
private static void CreateDragAdorner(DropInfo dropInfo)
{
var dragInfo = dropInfo.DragInfo;
var template = GetDropAdornerTemplate(dropInfo.VisualTarget) ?? GetDragAdornerTemplate(dragInfo.VisualSource);
var templateSelector = GetDropAdornerTemplateSelector(dropInfo.VisualTarget) ?? GetDragAdornerTemplateSelector(dragInfo.VisualSource);
UIElement adornment = null;
var useDefaultDragAdorner = template == null && templateSelector == null && GetUseDefaultDragAdorner(dragInfo.VisualSource);
var useVisualSourceItemSizeForDragAdorner = GetUseVisualSourceItemSizeForDragAdorner(dragInfo.VisualSource);
if (useDefaultDragAdorner)
{
template = dragInfo.VisualSourceItem.GetCaptureScreenDataTemplate(dragInfo.VisualSourceFlowDirection);
}
if (template != null || templateSelector != null)
{
if (dragInfo.Data is IEnumerable && !(dragInfo.Data is string))
{
if (!useDefaultDragAdorner && ((IEnumerable)dragInfo.Data).Cast <object>().Count() <= 10)
{
var itemsControl = new ItemsControl();
itemsControl.ItemsSource = (IEnumerable)dragInfo.Data;
itemsControl.ItemTemplate = template;
itemsControl.ItemTemplateSelector = templateSelector;
itemsControl.Tag = dragInfo;
if (useVisualSourceItemSizeForDragAdorner)
{
var bounds = VisualTreeHelper.GetDescendantBounds(dragInfo.VisualSourceItem);
itemsControl.SetValue(FrameworkElement.MinWidthProperty, bounds.Width);
}
// The ItemsControl doesn't display unless we create a grid to contain it.
// Not quite sure why we need this...
var grid = new Grid();
grid.Children.Add(itemsControl);
adornment = grid;
}
}
else
{
var contentPresenter = new ContentPresenter();
contentPresenter.Content = dragInfo.Data;
contentPresenter.ContentTemplate = template;
contentPresenter.ContentTemplateSelector = templateSelector;
contentPresenter.Tag = dragInfo;
if (useVisualSourceItemSizeForDragAdorner)
{
var bounds = VisualTreeHelper.GetDescendantBounds(dragInfo.VisualSourceItem);
contentPresenter.SetValue(FrameworkElement.MinWidthProperty, bounds.Width);
contentPresenter.SetValue(FrameworkElement.MinHeightProperty, bounds.Height);
}
adornment = contentPresenter;
}
}
if (adornment != null)
{
if (useDefaultDragAdorner)
{
adornment.Opacity = GetDefaultDragAdornerOpacity(dragInfo.VisualSource);
}
var rootElement = RootElementFinder.FindRoot(dropInfo.VisualTarget ?? dragInfo.VisualSource);
DragAdorner = new DragAdorner(rootElement, adornment, GetDragAdornerTranslation(dragInfo.VisualSource));
}
}
private static void CreateDragAdorner(DropInfo dropInfo)
{
var template = GetDragAdornerTemplate(m_DragInfo.VisualSource);
var templateSelector = GetDragAdornerTemplateSelector(m_DragInfo.VisualSource);
UIElement adornment = null;
var useDefaultDragAdorner = GetUseDefaultDragAdorner(m_DragInfo.VisualSource);
var useVisualSourceItemSizeForDragAdorner = GetUseVisualSourceItemSizeForDragAdorner(m_DragInfo.VisualSource);
if (template == null && templateSelector == null && useDefaultDragAdorner)
{
var bs = CaptureScreen(m_DragInfo.VisualSourceItem, m_DragInfo.VisualSourceFlowDirection);
if (bs != null)
{
var factory = new FrameworkElementFactory(typeof(Image));
factory.SetValue(Image.SourceProperty, bs);
factory.SetValue(RenderOptions.EdgeModeProperty, EdgeMode.Aliased);
factory.SetValue(RenderOptions.BitmapScalingModeProperty, BitmapScalingMode.HighQuality);
factory.SetValue(FrameworkElement.WidthProperty, bs.Width);
factory.SetValue(FrameworkElement.HeightProperty, bs.Height);
factory.SetValue(FrameworkElement.HorizontalAlignmentProperty, HorizontalAlignment.Left);
factory.SetValue(FrameworkElement.VerticalAlignmentProperty, VerticalAlignment.Top);
template = new DataTemplate {
VisualTree = factory
};
}
}
if (template != null || templateSelector != null)
{
if (m_DragInfo.Data is IEnumerable && !(m_DragInfo.Data is string))
{
if (!useDefaultDragAdorner && ((IEnumerable)m_DragInfo.Data).Cast <object>().Count() <= 10)
{
var itemsControl = new ItemsControl();
itemsControl.ItemsSource = (IEnumerable)m_DragInfo.Data;
itemsControl.ItemTemplate = template;
itemsControl.ItemTemplateSelector = templateSelector;
if (useVisualSourceItemSizeForDragAdorner)
{
var bounds = VisualTreeHelper.GetDescendantBounds(m_DragInfo.VisualSourceItem);
itemsControl.SetValue(FrameworkElement.MinWidthProperty, bounds.Width);
}
// The ItemsControl doesn't display unless we create a grid to contain it.
// Not quite sure why we need this...
var grid = new Grid();
grid.Children.Add(itemsControl);
adornment = grid;
}
}
else
{
var contentPresenter = new ContentPresenter();
contentPresenter.Content = m_DragInfo.Data;
contentPresenter.ContentTemplate = template;
contentPresenter.ContentTemplateSelector = templateSelector;
if (useVisualSourceItemSizeForDragAdorner)
{
var bounds = VisualTreeHelper.GetDescendantBounds(m_DragInfo.VisualSourceItem);
contentPresenter.SetValue(FrameworkElement.MinWidthProperty, bounds.Width);
contentPresenter.SetValue(FrameworkElement.MinHeightProperty, bounds.Height);
}
adornment = contentPresenter;
}
}
if (adornment != null)
{
if (useDefaultDragAdorner)
{
adornment.Opacity = GetDefaultDragAdornerOpacity(m_DragInfo.VisualSource);
}
var rootElement = RootElementFinder.FindRoot(dropInfo.VisualTarget ?? m_DragInfo.VisualSource);
DragAdorner = new DragAdorner(rootElement, adornment);
}
}
private static void CreateDragAdorner()
{
var template = GetDragAdornerTemplate(m_DragInfo.VisualSource);
var templateSelector = GetDragAdornerTemplateSelector(m_DragInfo.VisualSource);
UIElement adornment = null;
var useDefaultDragAdorner = GetUseDefaultDragAdorner(m_DragInfo.VisualSource);
if (template == null && templateSelector == null && useDefaultDragAdorner)
{
var bs = CaptureScreen(m_DragInfo.VisualSourceItem, m_DragInfo.VisualSourceFlowDirection);
if (bs != null)
{
var factory = new FrameworkElementFactory(typeof(Image));
factory.SetValue(Image.SourceProperty, bs);
factory.SetValue(RenderOptions.EdgeModeProperty, EdgeMode.Aliased);
factory.SetValue(RenderOptions.BitmapScalingModeProperty, BitmapScalingMode.HighQuality);
factory.SetValue(FrameworkElement.WidthProperty, bs.Width);
factory.SetValue(FrameworkElement.HeightProperty, bs.Height);
factory.SetValue(FrameworkElement.HorizontalAlignmentProperty, HorizontalAlignment.Left);
factory.SetValue(FrameworkElement.VerticalAlignmentProperty, VerticalAlignment.Top);
template = new DataTemplate {
VisualTree = factory
};
}
}
if (template != null || templateSelector != null)
{
if (m_DragInfo.Data is IEnumerable && !(m_DragInfo.Data is string))
{
if (!useDefaultDragAdorner && ((IEnumerable)m_DragInfo.Data).Cast <object>().Count() <= 10)
{
var itemsControl = new ItemsControl();
itemsControl.ItemsSource = (IEnumerable)m_DragInfo.Data;
itemsControl.ItemTemplate = template;
itemsControl.ItemTemplateSelector = templateSelector;
// The ItemsControl doesn't display unless we create a border to contain it.
// Not quite sure why this is...
var border = new Border();
border.Child = itemsControl;
adornment = border;
}
}
else
{
var contentPresenter = new ContentPresenter();
contentPresenter.Content = m_DragInfo.Data;
contentPresenter.ContentTemplate = template;
contentPresenter.ContentTemplateSelector = templateSelector;
adornment = contentPresenter;
}
}
if (adornment != null)
{
if (useDefaultDragAdorner)
{
adornment.Opacity = GetDefaultDragAdornerOpacity(m_DragInfo.VisualSource);
}
var rootElement = RootElementFinder.FindRoot(m_DragInfo.VisualSource);
// i don't want the fu... windows forms reference
// if (rootElement == null) {
// var elementHost = m_DragInfo.VisualSource.GetVisualAncestor<ElementHost>();
// rootElement = elementHost != null ? elementHost.Child : null;
// }
if (rootElement == null)
{
rootElement = m_DragInfo.VisualSource.GetVisualAncestor <UserControl>();
}
DragAdorner = new DragAdorner(rootElement, adornment);
}
}