/// <summary>
/// Called before the PointerPressed event occurs.
/// </summary>
/// <param name="e">
/// Event data for the event.
/// </param>
protected override void OnPointerPressed(PointerRoutedEventArgs e)
{
base.OnPointerPressed(e);
if (this.mouseManipulator != null)
{
return;
}
this.Focus(FocusState.Pointer);
this.CapturePointer(e.Pointer);
var position = e.GetCurrentPoint(this).Position;
var button = this.GetMouseButton(e);
var shift = (e.KeyModifiers & VirtualKeyModifiers.Shift) == VirtualKeyModifiers.Shift;
var control = (e.KeyModifiers & VirtualKeyModifiers.Control) == VirtualKeyModifiers.Control;
int clickCount = 1;
if (MouseButtonHelper.IsDoubleClick(this, position))
{
clickCount = 2;
}
this.mouseManipulator = this.GetManipulator(button, clickCount, shift, control);
if (this.mouseManipulator != null)
{
this.mouseManipulator.Started(this.CreateManipulationEventArgs(e));
e.Handled = true;
}
e.Handled = true;
}
/// <summary>
/// Converts <see cref="PointerRoutedEventArgs" /> to <see cref="OxyMouseEventArgs" /> for a mouse down event.
/// </summary>
/// <param name="e">The <see cref="PointerRoutedEventArgs" /> instance containing the event data.</param>
/// <param name="relativeTo">The <see cref="UIElement" /> that the event is relative to.</param>
/// <returns>A <see cref="OxyMouseDownEventArgs" /> containing the converted event arguments.</returns>
public static OxyMouseDownEventArgs ToMouseDownEventArgs(this PointerRoutedEventArgs e, UIElement relativeTo)
{
var point = e.GetCurrentPoint(relativeTo);
int clickCount = 1;
if (MouseButtonHelper.IsDoubleClick(relativeTo, point.Position))
{
clickCount = 2;
}
return(new OxyMouseDownEventArgs
{
ChangedButton = point.Properties.GetPressedMouseButton(),
Position = point.Position.ToScreenPoint(),
ModifierKeys = e.GetModifierKeys(),
ClickCount = clickCount
});
}
