public override bool CanMove(IMotionInfo info, object context)
{
var element = Controller.Element;
var value = MouseWheel.GetValue(element);
return(info.Direction <0 ? value> _minimum : value < _maximum);
}
public MouseWheelInputEventArgs(IMouseWheelController controller, MouseWheel wheel, MouseWheelEventArgs nativeEventArgs)
: base(nativeEventArgs.MouseDevice, nativeEventArgs.Timestamp)
{
Controller = controller;
Wheel = wheel;
NativeEventArgs = nativeEventArgs;
}
protected override void OnLoading()
{
base.OnLoading();
var element = Controller.Element;
if (Orientation == Orientation.Vertical)
{
_scrollMode = MouseWheel.GetVScrollMode(element);
_smoothing = MouseWheel.GetVScrollSmoothing(element);
_modifiers = MouseWheel.GetVScrollModifiers(element);
MouseWheel.VScrollModeProperty.AddValueChanged(element, OnVScrollModeChanged);
MouseWheel.VScrollSmoothingProperty.AddValueChanged(element, OnVSmoothingChanged);
MouseWheel.VScrollModifiersProperty.AddValueChanged(element, OnVModifiersChanged);
MouseWheel.GetLogicalVScrollIncrement(element).SetOrientation(Orientation.Vertical);
MouseWheel.GetPhysicalVScrollIncrement(element).SetOrientation(Orientation.Vertical);
}
else
{
_scrollMode = MouseWheel.GetHScrollMode(element);
_smoothing = MouseWheel.GetHScrollSmoothing(element);
_modifiers = MouseWheel.GetHScrollModifiers(element);
MouseWheel.HScrollModeProperty.AddValueChanged(element, OnHScrollModeChanged);
MouseWheel.HScrollSmoothingProperty.AddValueChanged(element, OnHSmoothingChanged);
MouseWheel.HScrollModifiersProperty.AddValueChanged(element, OnHModifiersChanged);
MouseWheel.GetLogicalHScrollIncrement(element).SetOrientation(Orientation.Horizontal);
MouseWheel.GetPhysicalHScrollIncrement(element).SetOrientation(Orientation.Horizontal);
}
}
public MouseWheelInputEventArgs(IMouseWheelController controller, MouseWheel wheel,
MouseWheelEventArgs nativeEventArgs)
: base(nativeEventArgs.MouseDevice, nativeEventArgs.Timestamp)
{
Controller = controller;
Wheel = wheel;
NativeEventArgs = nativeEventArgs;
}
protected override void OnLoading()
{
base.OnLoading();
var element = Controller.Element;
_modifiersKeys = MouseWheel.GetVScrollModifiers(element);
MouseWheel.VScrollModifiersProperty.AddValueChanged(element, OnModifierKeysYChanged);
}
public MouseWheelAdaptationBehavior(IMouseWheelClient client)
: base(client)
{
var element = Client.Controller.Element;
NestedMotionEnabled = MouseWheel.GetNestedMotion(element);
Debouncing = MouseWheel.GetDebouncing(element);
MouseWheel.NestedMotionProperty.AddValueChanged(element, OnNestedMotionChanged);
MouseWheel.DebouncingProperty.AddValueChanged(element, OnDebouncingChanged);
}
public MouseWheelZoomBehavior(IMouseWheelClient client)
: base(client)
{
var element = Client.Controller.Element;
NestedMotionEnabled = MouseWheel.GetNestedZoom(element);
Debouncing = MouseWheel.GetZoomDebouncing(element);
MouseWheel.NestedZoomProperty.AddValueChanged(element, OnNestedZoomChanged);
MouseWheel.ZoomDebouncingProperty.AddValueChanged(element, OnDebouncingChanged);
}
public MouseWheelFlowDocumentPageViewerScrollBehavior(IMouseWheelClient client)
: base(client, null)
{
var element = Client.Controller.Element;
NestedMotionEnabled = MouseWheel.GetNestedVScroll(element);
Debouncing = MouseWheel.GetLogicalVScrollDebouncing(element);
MouseWheel.NestedVScrollProperty.AddValueChanged(element, OnNestedVScrollChanged);
MouseWheel.LogicalVScrollDebouncingProperty.AddValueChanged(element, OnDebouncingYChanged);
}
private IMouseWheelShaft GetMotionShaft(MouseWheel wheel)
{
Wheel = wheel;
if (_shaft == null)
{
_shaft = GetMotionShaft(wheel, wheel.ActiveTransferCase);
}
wheel.ActiveTransferCase.ActiveShaft = _shaft;
return(_shaft);
}
protected override void OnLoading()
{
base.OnLoading();
var element = Controller.Element;
_smoothing = MouseWheel.GetZoomSmoothing(element);
_modifiers = MouseWheel.GetZoomModifiers(element);
MouseWheel.ZoomSmoothingProperty.AddValueChanged(element, OnSmoothingChanged);
MouseWheel.ZoomModifiersProperty.AddValueChanged(element, OnModifiersChanged);
}
protected IMouseWheelShaft GetMotionShaftAuto(MouseWheel wheel, IMouseWheelTransferCase transferCase,
int debouncingCellCount)
{
var resolution = wheel.Resolution;
if (DoubleEx.AreClose(resolution, (int)resolution))
{
return(transferCase[debouncingCellCount]); // the most granular debouncing
}
return(transferCase[0]); // no debouncing if wheel resolution not integral
}
protected override IMouseWheelShaft GetMotionShaft(MouseWheel wheel, IMouseWheelTransferCase transferCase)
{
switch (Debouncing)
{
case MouseWheelDebouncing.Auto: return(GetMotionShaftAuto(wheel, transferCase, ScrollIncrement));
case MouseWheelDebouncing.None: return(transferCase[0]);
case MouseWheelDebouncing.Single: return(transferCase[1]);
default: throw new NotImplementedException();
}
}
protected override void OnLoading()
{
base.OnLoading();
var element = Controller.Element;
_smoothing = MouseWheel.GetSmoothing(element);
_modifiers = MouseWheel.GetModifiers(element);
_minimum = MouseWheel.GetMinimum(element);
_maximum = MouseWheel.GetMaximum(element);
MouseWheel.SmoothingProperty.AddValueChanged(element, OnSmoothingChanged);
MouseWheel.ModifiersProperty.AddValueChanged(element, OnModifiersChanged);
MouseWheel.MinimumProperty.AddValueChanged(element, OnMinimumChanged);
MouseWheel.MaximumProperty.AddValueChanged(element, OnMaximumChanged);
}
public MouseWheelScrollBehavior(MouseWheelScrollClient scrollClient, IDisposable manipulator)
: base(scrollClient, manipulator)
{
var element = Client.Controller.Element;
if (scrollClient.Orientation == Orientation.Vertical)
{
NestedMotionEnabled = MouseWheel.GetNestedVScroll(element);
MouseWheel.NestedVScrollProperty.AddValueChanged(element, OnNestedVScrollChanged);
}
else
{
NestedMotionEnabled = MouseWheel.GetNestedHScroll(element);
MouseWheel.NestedHScrollProperty.AddValueChanged(element, OnNestedHScrollChanged);
}
}
public override double Coerce(IMotionInfo info, object context, double delta)
{
var element = Controller.Element;
var value = MouseWheel.GetValue(element);
int direction = info.Direction;
if (direction > 0)
{
var movableDelta = _maximum - value;
return(Math.Min(movableDelta, delta));
}
else
{
var movableDelta = _minimum - value;
return(Math.Max(movableDelta, delta));
}
}
protected virtual IMouseWheelShaft GetMotionShaft(MouseWheel wheel, IMouseWheelTransferCase transferCase)
{
switch (Debouncing)
{
case MouseWheelDebouncing.Auto:
return(GetMotionShaftAuto(wheel, transferCase, -1));
case MouseWheelDebouncing.None:
return(transferCase[0]); // no debouncing
case MouseWheelDebouncing.Single:
return(transferCase[1]); // one debouncing cell per click - same as a standard resolution notch
default:
throw new NotImplementedException();
}
}
public MouseWheelPhysicalScrollBehavior(MouseWheelScrollClient scrollClient, IDisposable manipulator)
: base(scrollClient, manipulator)
{
var element = Client.Controller.Element;
if (scrollClient.Orientation == Orientation.Vertical)
{
Debouncing = MouseWheel.GetPhysicalVScrollDebouncing(element);
ScrollIncrement = MouseWheel.GetPhysicalVScrollIncrement(element);
MouseWheel.PhysicalVScrollDebouncingProperty.AddValueChanged(element, OnDebouncingYChanged);
MouseWheel.PhysicalVScrollIncrementProperty.AddValueChanged(element, OnVScrollIncrementChanged);
}
else
{
Debouncing = MouseWheel.GetPhysicalHScrollDebouncing(element);
ScrollIncrement = MouseWheel.GetPhysicalHScrollIncrement(element);
MouseWheel.PhysicalHScrollDebouncingProperty.AddValueChanged(element, OnDebouncingXChanged);
MouseWheel.PhysicalHScrollIncrementProperty.AddValueChanged(element, OnHScrollIncrementChanged);
}
}
private void OnHScrollIncrementChanged(object sender, EventArgs e)
{
ScrollIncrement = MouseWheel.GetPhysicalHScrollIncrement(sender as DependencyObject);
}
private void OnDebouncingXChanged(object sender, EventArgs e)
{
Debouncing = MouseWheel.GetPhysicalHScrollDebouncing(sender as DependencyObject);
}
protected IMouseWheelShaft GetMotionShaftAuto(MouseWheel wheel, IMouseWheelTransferCase transferCase, int debouncingCellCount)
{
var resolution = wheel.Resolution;
if (DoubleEx.AreClose(resolution, (int)resolution))
return transferCase[debouncingCellCount]; // the most granular debouncing
else
return transferCase[0]; // no debouncing if wheel resolution not integral
}
public MouseWheelMultiShaftTransferCase(MouseWheel wheel)
{
_wheel = wheel;
InitializeDebouncingFunctions();
}
private void OnMaximumChanged(object sender, EventArgs e)
{
_maximum = MouseWheel.GetMaximum(sender as DependencyObject);
}
private void OnEnhancedChanged(object sender, EventArgs e)
{
Enhanced = MouseWheel.GetEnhanced(sender as DependencyObject);
}
public MouseWheelMultiShaftTransferCase(MouseWheel wheel)
{
_wheel = wheel;
InitializeDebouncingFunctions();
}
private void OnNestedMotionChanged(object sender, EventArgs e)
{
NestedMotionEnabled = MouseWheel.GetNestedMotion(sender as DependencyObject);
}
private void OnHScrollModeChanged(object sender, EventArgs e)
{
ScrollMode = MouseWheel.GetHScrollMode(sender as DependencyObject);
}
protected override IMouseWheelShaft GetMotionShaft(MouseWheel wheel, IMouseWheelTransferCase transferCase) { return transferCase[0]; }
private IMouseWheelShaft GetMotionShaft(MouseWheel wheel)
{
Wheel = wheel;
if (_shaft == null)
_shaft = GetMotionShaft(wheel, wheel.ActiveTransferCase);
wheel.ActiveTransferCase.ActiveShaft = _shaft;
return _shaft;
}
protected override IMouseWheelShaft GetMotionShaft(MouseWheel wheel, IMouseWheelTransferCase transferCase)
{
return(transferCase[0]);
}
private void OnModifierKeysYChanged(object sender, EventArgs e)
{
_modifiersKeys = MouseWheel.GetVScrollModifiers(sender as DependencyObject);
}
protected virtual void OnLoading()
{
_enhanced = MouseWheel.GetEnhanced(Controller.Element);
MouseWheel.EnhancedProperty.AddValueChanged(Controller.Element, OnEnhancedChanged);
}
protected virtual IMouseWheelShaft GetMotionShaft(MouseWheel wheel, IMouseWheelTransferCase transferCase)
{
switch (Debouncing)
{
case MouseWheelDebouncing.Auto: return GetMotionShaftAuto(wheel, transferCase, -1);
case MouseWheelDebouncing.None: return transferCase[ 0]; // no debouncing
case MouseWheelDebouncing.Single: return transferCase[ 1]; // one debouncing cell per click - same as a standard resolution notch
default: throw new NotImplementedException();
}
}
private void OnSmoothingChanged(object sender, EventArgs e)
{
Smoothing = MouseWheel.GetZoomSmoothing(sender as DependencyObject);
}
public override void Move(IMotionInfo info, object context, double delta)
{
var element = Controller.Element;
MouseWheel.SetValue(element, MouseWheel.GetValue(element) + delta);
}
private void OnDebouncingChanged(object sender, EventArgs e)
{
Debouncing = MouseWheel.GetDebouncing(sender as DependencyObject);
}
private void OnModifiersChanged(object sender, EventArgs e)
{
_modifiers = MouseWheel.GetZoomModifiers(sender as DependencyObject);
}
