// Methods
internal C1DragStartingEventArgs(C1DragHelper helper, RoutedEventArgs originalArgs, C1PointerDeviceType pointerType, C1DragHelperMode mode, bool captureElementOnPointerPressed, double initialThreshold)
: base(helper, originalArgs, pointerType)
{
Mode = mode;
CaptureElementOnPointerPressed = captureElementOnPointerPressed;
InitialThreshold = initialThreshold;
}
internal C1DragStartingEventArgs(C1DragHelper helper, RoutedEventArgs originalArgs, C1PointerDeviceType pointerType, C1DragHelperMode mode,
bool captureElementOnPointerPressed, double initialThreshold)
: base(helper, originalArgs, pointerType)
{
Mode = mode;
CaptureElementOnPointerPressed = captureElementOnPointerPressed;
InitialThreshold = initialThreshold;
}
public C1DragHelper(UIElement element, C1DragHelperMode mode = C1DragHelperMode.TranslateXY, double initialThreshold = 1.0, bool captureElementOnPointerPressed = true, bool handledEventsToo = false, bool useManipulationEvents = false, bool useRightButton = false)
{
_element = element;
_mode = mode;
_initialThreshold = initialThreshold;
_handledEventsToo = handledEventsToo;
_captureElementOnMouseDown = captureElementOnPointerPressed;
_listenManipulationEvents = true;
_listenPointerEvents = !useManipulationEvents;
_useRightButton = useRightButton;
InitializeDrag();
}
bool RaiseDragStarting(RoutedEventArgs e)
{
C1DragStartingEventArgs args = new C1DragStartingEventArgs(this, e, _pointerType, _mode, _captureElementOnMouseDown, _initialThreshold);
if (DragStarting != null)
{
DragStarting(this, args);
}
_actualMode = args.Mode;
_actualCaptureElementOnMouseDown = (args.InitialThreshold == 0.0) || args.CaptureElementOnPointerPressed;
_actualInitialThreshold = args.InitialThreshold;
return(!args.Cancel);
}
public C1DragHelper(UIElement element, C1DragHelperMode mode = C1DragHelperMode.TranslateXY, double initialThreshold = 1, bool captureElementOnPointerPressed = true,
bool handledEventsToo = false, bool useManipulationEvents = false, bool useRightButton = false)
{
_element = element;
_mode = mode;
_initialThreshold = initialThreshold;
_handledEventsToo = handledEventsToo;
_captureElementOnMouseDown = captureElementOnPointerPressed;
_listenManipulationEvents = true;
_listenPointerEvents = true;
_useRightButton = useRightButton;
InitializeDrag();
}
public static bool TranslateY(this C1DragHelperMode mode)
{
return(((byte)(mode & C1DragHelperMode.TranslateY)) == 2);
}
public static bool TranslateRailY(this C1DragHelperMode mode)
{
return(((byte)(mode & C1DragHelperMode.TranslateRailY)) == 0x10);
}
// Methods
public static bool IsInertial(this C1DragHelperMode mode)
{
return(((byte)(mode & C1DragHelperMode.Inertia)) == 4);
}
private bool RaiseDragStarting(RoutedEventArgs e)
{
var c1DragStartingEventArg = new C1DragStartingEventArgs(this, e, _pointerType, _mode, _captureElementOnMouseDown, _initialThreshold);
if (DragStarting != null)
{
DragStarting(_element, c1DragStartingEventArg);
}
_actualMode = c1DragStartingEventArg.Mode;
_actualCaptureElementOnMouseDown = (c1DragStartingEventArg.InitialThreshold == 0 ? true : c1DragStartingEventArg.CaptureElementOnPointerPressed);
_actualInitialThreshold = c1DragStartingEventArg.InitialThreshold;
return !c1DragStartingEventArg.Cancel;
}
