void designPanel_DragOver(object sender, DragEventArgs e)
{
try
{
IDesignPanel designPanel = (IDesignPanel)sender;
e.Effects = DragDropEffects.Copy;
e.Handled = true;
Point p = e.GetPosition(designPanel);
if (moveLogic == null)
{
if (e.Data.GetData(typeof(CreateComponentTool)) != this)
{
return;
}
// TODO: dropLayer in designPanel
designPanel.IsAdornerLayerHitTestVisible = false;
DesignPanelHitTestResult result = designPanel.HitTest(p, false, true, HitTestType.Default);
if (result.ModelHit != null)
{
designPanel.Focus();
DesignItem createdItem = CreateItem(designPanel.Context);
if (AddItemWithDefaultSize(result.ModelHit, createdItem, e.GetPosition(result.ModelHit.View)))
{
moveLogic = new MoveLogic(createdItem);
if (designPanel.Context.Services.Component is XamlComponentService)
{
((XamlComponentService)designPanel.Context.Services.Component)
.RaiseComponentRegisteredAndAddedToContainer(createdItem);
}
createPoint = p;
// We'll keep the ChangeGroup open as long as the moveLogic is active.
}
else
{
// Abort the ChangeGroup created by the CreateItem() call.
changeGroup.Abort();
}
}
}
else if ((moveLogic.ClickedOn.View as FrameworkElement).IsLoaded)
{
if (moveLogic.Operation == null)
{
moveLogic.Start(createPoint);
}
else
{
moveLogic.Move(p);
}
}
}
catch (Exception x)
{
DragDropExceptionHandler.RaiseUnhandledException(x);
}
}
void designPanel_DragLeave(object sender, DragEventArgs e)
{
try {
if (moveLogic != null)
{
moveLogic.Cancel();
moveLogic.ClickedOn.Services.Selection.SetSelectedComponents(null);
moveLogic.DesignPanel.IsAdornerLayerHitTestVisible = true;
moveLogic = null;
changeGroup.Abort();
}
} catch (Exception x) {
DragDropExceptionHandler.RaiseUnhandledException(x);
}
}
void designPanel_Drop(object sender, DragEventArgs e)
{
try {
if (moveLogic != null)
{
moveLogic.Stop();
if (moveLogic.ClickedOn.Services.Tool.CurrentTool is CreateComponentTool)
{
moveLogic.ClickedOn.Services.Tool.CurrentTool = moveLogic.ClickedOn.Services.Tool.PointerTool;
}
moveLogic.DesignPanel.IsAdornerLayerHitTestVisible = true;
moveLogic = null;
changeGroup.Commit();
}
} catch (Exception x) {
DragDropExceptionHandler.RaiseUnhandledException(x);
}
}
void designPanel_DragOver(object sender, DragEventArgs e)
{
try
{
IDesignPanel designPanel = (IDesignPanel)sender;
e.Effects = DragDropEffects.Copy;
e.Handled = true;
Point p = e.GetPosition(designPanel);
if (moveLogic == null)
{
if (ChangeGroup != null)
{
ChangeGroup.Abort();
ChangeGroup = null;
}
ChangeGroup = designPanel.Context.RootItem.OpenGroup("Add Control");
designPanel.IsAdornerLayerHitTestVisible = false;
DesignPanelHitTestResult result = designPanel.HitTest(p, false, true, HitTestType.Default);
if (result.ModelHit != null)
{
designPanel.Focus();
var items = CreateItemsWithPosition(designPanel.Context, e.GetPosition(result.ModelHit.View), e);
if (items != null)
{
if (AddItems(result.ModelHit, items))
{
moveLogic = new MoveLogic(items[0]);
foreach (var designItem in items)
{
if (designPanel.Context.Services.Component is XamlComponentService)
{
((XamlComponentService)designPanel.Context.Services.Component).RaiseComponentRegisteredAndAddedToContainer(designItem);
}
}
createPoint = p;
}
else
{
ChangeGroup.Abort();
ChangeGroup = null;
}
}
else
{
e.Effects = DragDropEffects.None;
}
}
}
else if ((moveLogic.ClickedOn.View as FrameworkElement).IsLoaded)
{
if (moveLogic.Operation == null)
{
moveLogic.Start(createPoint);
}
else
{
moveLogic.Move(p);
}
}
}
catch (Exception x)
{
DragDropExceptionHandler.RaiseUnhandledException(x);
}
}
