public override bool ContinueTracking(UITouch uitouch, UIEvent uievent)
{
if (!minThumbOn && !maxThumbOn)
return true;
var touchPoint = uitouch.LocationInView (this);
if (minThumbOn)
{
minThumb.Center = new PointF(Math.Max (
XForValue(MinValue), Math.Min(touchPoint.X - distanceFromCenter, XForValue(SelectedMaxValue - MinRange))), minThumb.Center.Y - Frame.Top);
SelectedMinValue = ValueForX (minThumb.Center.X);
}
if (maxThumbOn)
{
maxThumb.Center = new PointF(Math.Min (
XForValue(MaxValue),
Math.Max(
touchPoint.X - distanceFromCenter,
XForValue(SelectedMinValue + MinRange)
)
), maxThumb.Center.Y - Frame.Top);
SelectedMaxValue = ValueForX (maxThumb.Center.X);
}
UpdateTrackHighlight();
this.SetNeedsLayout();
if (ThumbChanged != null) ThumbChanged(this);
return true;
}
protected void AddSpot (UITouch touch)
{
// create a random color spot at the point of touch, then add it to the others
Spot spot = Spot.CreateNewRandomColor (touch.LocationInView (this));
touchSpots.Add (spot);
// tell the OS to redraw
SetNeedsDisplay ();
}
public override void EndTracking(UITouch uitouch, UIEvent uievent)
{
_leftKnobLayer.Highlighted = false;
_rightKnobLayer.Highlighted = false;
_leftKnobLayer.SetNeedsDisplay ();
_rightKnobLayer.SetNeedsDisplay ();
}
public override bool ContinueTracking (UITouch uitouch, UIEvent uievent)
{
var touch = uievent.AllTouches.AnyObject as UITouch;
if (Bounds.Contains (touch.LocationInView (this)))
isPressed = true;
else
isPressed = false;
return base.ContinueTracking (uitouch, uievent);
}
public override bool BeginTracking(UITouch uitouch, UIEvent uievent)
{
if (uievent.Type == UIEventType.Touches)
{
SetNeedsDisplay();
}
return base.BeginTracking(uitouch, uievent);
}
public override void EndTracking (UITouch uitouch, UIEvent uievent)
{
if (isPressed && Enabled){
if (Tapped != null)
Tapped (this);
}
isPressed = false;
SetNeedsDisplay ();
base.EndTracking (uitouch, uievent);
}
public override void EndTracking(UITouch uitouch, UIEvent uievent)
{
if (pressed && Enabled)
{
Tapped?.Invoke(this);
}
pressed = false;
SetNeedsDisplay();
base.EndTracking(uitouch, uievent);
}
public bool UpdateWithTouch (UITouch touch)
{
NSNumber estimationUpdateIndex = touch.EstimationUpdateIndex;
if (estimationUpdateIndex != EstimationUpdateIndex)
return false;
// An array of the touch properties that may be of interest.
UITouchProperties[] touchProperties = {
UITouchProperties.Location,
UITouchProperties.Force,
UITouchProperties.Altitude,
UITouchProperties.Azimuth
};
// Iterate through possible properties.
foreach (var expectedProperty in touchProperties) {
// If an update to this property is not expected, continue to the next property.
if (EstimatedPropertiesExpectingUpdates.Has (expectedProperty))
continue;
switch (expectedProperty) {
case UITouchProperties.Force:
Force = touch.Force;
break;
case UITouchProperties.Azimuth:
AzimuthAngle = touch.GetAzimuthAngle (touch.View);
break;
case UITouchProperties.Altitude:
AltitudeAngle = touch.AltitudeAngle;
break;
case UITouchProperties.Location:
Location = touch.LocationInView (touch.View);
PreciseLocation = touch.PreviousLocationInView (touch.View);
break;
}
if (!touch.EstimatedProperties.Has (expectedProperty)) {
// Flag that this point now has a 'final' value for this property.
EstimatedProperties = EstimatedProperties.Remove (expectedProperty);
}
if (!touch.EstimatedPropertiesExpectingUpdates.Has (expectedProperty)) {
// Flag that this point is no longer expecting updates for this property.
EstimatedPropertiesExpectingUpdates = EstimatedPropertiesExpectingUpdates.Remove (expectedProperty);
if (EstimatedPropertiesExpectingUpdates == 0) {
PointType = this.PointType.Remove (PointType.NeedsUpdate);
PointType = this.PointType.Add (PointType.Updated);
}
}
}
return true;
}
public CGRect AddPointOfType(PointType pointType, UITouch touch)
{
var previousPoint = Points.LastOrDefault ();
var previousSequenceNumber = previousPoint != null ? previousPoint.SequenceNumber : -1;
var point = new LinePoint (touch, previousSequenceNumber + 1, pointType);
if (point.EstimationUpdateIndex != null && point.EstimatedPropertiesExpectingUpdates != 0)
pointsWaitingForUpdatesByEstimationIndex [point.EstimationUpdateIndex] = point;
Points.Add (point);
return UpdateRectForLinePoint (point, previousPoint);
}
public override bool BeginTracking(UITouch uitouch, UIEvent uievent)
{
var touchPoint = uitouch.LocationInView (this);
if (minThumb.Frame.Contains (touchPoint)) {
minThumbOn = true;
distanceFromCenter = touchPoint.X - minThumb.Center.X;
} else if (maxThumb.Frame.Contains (touchPoint)) {
maxThumbOn = true;
distanceFromCenter = touchPoint.X - maxThumb.Center.X;
}
return true;
}
private PointerState GetState(UITouch touch)
{
switch (touch.Phase)
{
case UITouchPhase.Began:
return PointerState.Down;
case UITouchPhase.Moved:
case UITouchPhase.Stationary:
return PointerState.Move;
case UITouchPhase.Ended:
return PointerState.Up;
case UITouchPhase.Cancelled:
return PointerState.Cancel;
}
throw new ArgumentException("Got an invalid Touch event in GetState");
}
public override bool BeginTracking(UITouch uitouch, UIEvent uievent)
{
var TouchPoint = uitouch.LocationInView (this);
if (_leftKnobLayer.Frame.Contains (TouchPoint)) {
_leftTouchPoint = TouchPoint;
_leftKnobLayer.Highlighted = true;
_leftKnobLayer.SetNeedsDisplay ();
}
else if (_rightKnobLayer.Frame.Contains (TouchPoint)) {
_rightTouchPoint = TouchPoint;
_rightKnobLayer.Highlighted = true;
_rightKnobLayer.SetNeedsDisplay ();
}
return _leftKnobLayer.Highlighted || _rightKnobLayer.Highlighted;
}
public void TouchBegan(UITouch touch, UIView view)
{
var touchImgView = touchImageViewQueue.PopTouchImageView();
touchImgView.Center = touch.LocationInView(view);
view.AddSubview(touchImgView);
touchImgView.Alpha = 0.0f;
touchImgView.Transform = CGAffineTransform.MakeScale(1.13f, 1.13f);
SetTouchImageView(touchImgView, touch);
UIView.Animate(duration: 0.1, animation: () =>
{
touchImgView.Alpha = 1.0f;
touchImgView.Transform = CGAffineTransform.MakeScale(1, 1);
});
touchesStartDateMapTable[touch] = DateTime.Now;
}
public override void TouchesBegan(NSSet touches, UIEvent evt)
{
base.TouchesBegan(touches, evt);
UITouch touch = (UITouch)touches.AnyObject;
CGPoint touchPoint = touch.LocationInView(chart.PlotView);
TKChartSelectionInfo hitTestInfo = chart.HitTestForPoint(touchPoint);
if (hitTestInfo != null)
{
selectedPoint = chart.VisualPointForSeries(hitTestInfo.Series, hitTestInfo.DataPointIndex);
originalLocation = touchPoint;
if (selectedPoint != null)
{
selectedPoint.Animator = null;
originalPosition = selectedPoint.Center;
}
}
}
public override void TouchesMoved(NSSet touches, UIEvent evt)
{
isCleared = false;
UITouch touch = touches.AnyObject as UITouch;
CGPoint point = touch.LocationInView(this);
center++;
points[center] = point;
if (center == 4)
{
points[3] = new CGPoint((points[2].X + points[4].X) / 2f, (points[2].Y + points[4].Y) / 2f);
path.MoveTo(points[0]);
path.AddCurveToPoint(points[3], points[1], points[2]);
SetNeedsDisplay();
points[0] = points[3];
points[1] = points[4];
center = 1;
}
}
public override void TouchesMoved(MonoTouch.Foundation.NSSet touches, UIEvent evt)
{
// Create a path under the finger following the grid
if (touches.Count == 1)
{
// Valid movement
if (mParent.IsCreatingPath)
{
UITouch touch = (UITouch)touches.AnyObject;
PointF fingerLocation = touch.LocationInView(this);
Cell cell = getCellFromViewCoordinates(fingerLocation);
mParent.CreatePath(cell);
}
}
base.TouchesMoved(touches, evt);
}
private void FireEvent(
TouchRecognizer recognizer,
long id,
TouchActionType actionType,
UITouch touch,
bool isInContact)
{
// Convert touch location to Xamarin.Forms Point value
CGPoint cgPoint = touch.LocationInView(recognizer.View);
Point xfPoint = new Point(cgPoint.X, cgPoint.Y);
// Get the method to call for firing events
Action <Element, TouchActionEventArgs> onTouchAction = recognizer.touchEffect.OnTouchAction;
// Call that method
onTouchAction(
recognizer.element,
new TouchActionEventArgs(id, actionType, xfPoint, isInContact));
}
public override void TouchesEnded(NSSet touches, UIEvent evt)
{
base.TouchesEnded(touches, evt);
UITouch touch = touches.AnyObject as UITouch;
var cgPoint = touch.LocationInView(this);
var point = new SKPoint((float)this.ContentScaleFactor * (float)cgPoint.X, (float)this.ContentScaleFactor * (float)cgPoint.Y);
var rect = new SKRect(point.X - 25f, point.Y - 25f, point.X + 50f, point.Y + 50f);
// if touch ended within current viewbox!
if (takeButton.TouchUpInside(rect))
{
TakeButtonTouched?.Invoke(this, new EventArgs());
Counter++;
}
if (flashButton.TouchUpInside(rect))
{
FlashButtonTouched?.Invoke(this, new EventArgs());
}
if (cameraButton.TouchUpInside(rect))
{
CameraButtonTouched?.Invoke(this, new EventArgs());
}
if (closeButton.TouchUpInside(rect))
{
CloseButtonTouched?.Invoke(this, new EventArgs());
}
if (sendButton.TouchUpInside(rect))
{
SendButtonTouched?.Invoke(this, new EventArgs());
}
if (counterButton.TouchUpInside(rect))
{
CounterButtonTouched?.Invoke(this, new EventArgs());
}
buttons.ForEach((btn) => btn.Touched = false);
}
public override bool BeginTracking(UITouch uitouch, UIEvent uievent)
{
var TouchPoint = uitouch.LocationInView(this);
if (_leftKnobLayer.Frame.Contains(TouchPoint))
{
_leftTouchPoint = TouchPoint;
_leftKnobLayer.Highlighted = true;
_leftKnobLayer.SetNeedsDisplay();
}
else if (_rightKnobLayer.Frame.Contains(TouchPoint))
{
_rightTouchPoint = TouchPoint;
_rightKnobLayer.Highlighted = true;
_rightKnobLayer.SetNeedsDisplay();
}
return(_leftKnobLayer.Highlighted || _rightKnobLayer.Highlighted);
}
public override void TouchesMoved(NSSet touches, UIEvent evt)
{
UITouch touch = (UITouch)touches.AnyObject;
UIView.PerformWithoutAnimation(() => {
X = X + touch.LocationInView(Screen.GlobalScreen).X - touch.PreviousLocationInView(Screen.GlobalScreen).X;
Y = Y + touch.LocationInView(Screen.GlobalScreen).Y - touch.PreviousLocationInView(Screen.GlobalScreen).Y;
Clamp();
});
CGPoint newVelocity = CGPoint.Empty;
newVelocity.X = touch.LocationInView(Screen.GlobalScreen).X - (nfloat)(touch.PreviousLocationInView(Screen.GlobalScreen).X / (touch.Timestamp - lastTime));
newVelocity.Y = touch.LocationInView(Screen.GlobalScreen).Y - (nfloat)(touch.PreviousLocationInView(Screen.GlobalScreen).Y / (touch.Timestamp - lastTime));
velocity.X = 0.25f * velocity.X + 0.75f * newVelocity.X;
velocity.Y = 0.25f * velocity.Y + 0.75f * newVelocity.Y;
lastTime = touch.Timestamp;
}
public override void TouchesEnded(NSSet touches, UIEvent evt)
{
base.TouchesEnded(touches, evt);
ActivePanel.TouchesEnded( );
UITouch touch = (UITouch)touches.AnyObject;
CGPoint posInMain = touch.LocationInView(MainPanel);
// if they tap outside the window (in the shaded area) dismiss this.
if ((posInMain.X < 0 || posInMain.X > MainPanel.Bounds.Width) ||
(posInMain.Y < 0 || posInMain.Y > MainPanel.Bounds.Height))
{
// confirm they want to cancel
//ConfirmCancel( );
DismissAnimated(false, null);
}
}
public override bool ContinueTracking(UITouch uitouch, UIEvent uievent)
{
var TouchPoint = uitouch.LocationInView (this);
if (_leftKnobLayer.Highlighted) {
_leftTouchPoint = TouchPoint;
} else if (_rightKnobLayer.Highlighted) {
_rightTouchPoint = TouchPoint;
}
CATransaction.Begin ();
CATransaction.DisableActions = true;
SetLayerFrames ();
CATransaction.Commit ();
return _leftKnobLayer.Highlighted || _rightKnobLayer.Highlighted;
}
public override void TouchesBegan(NSSet touches, UIEvent evt)
{
base.TouchesBegan(touches, evt);
// we can get the number of fingers from the touch count, but Multitouch must be enabled
lblNumberOfFingers.Text = "Number of fingers: " + touches.Count.ToString();
// get the touch
UITouch touch = touches.AnyObject as UITouch;
if (touch != null)
{
Console.WriteLine("screen touched");
//==== IMAGE TOUCH
if (imgTouchMe.Frame.Contains(touch.LocationInView(View)))
{
lblTouchStatus.Text = "TouchesBegan";
}
//==== IMAGE DOUBLE TAP
if (touch.TapCount == 2 && imgTapMe.Frame.Contains(touch.LocationInView(View)))
{
if (imageHighlighted)
{
imgTapMe.Image = UIImage.FromBundle("Images/DoubleTapMe.png");
}
else
{
imgTapMe.Image = UIImage.FromBundle("Images/DoubleTapMe_Highlighted.png");
}
imageHighlighted = !imageHighlighted;
}
//==== IMAGE DRAG
// check to see if the touch started in the dragme image
if (imgDragMe.Frame.Contains(touch.LocationInView(View)))
{
touchStartedInside = true;
}
}
}
void CheckForBoundaryHop(UITouch touch)
{
long id = touch.Handle.ToInt64();
// TODO: Might require converting to a List for multiple hits
TouchRecognizer recognizerHit = null;
foreach (UIView view in viewDictionary.Keys)
{
CGPoint location = touch.LocationInView(view);
if (new CGRect(new CGPoint(), view.Frame.Size).Contains(location))
{
recognizerHit = viewDictionary[view];
}
}
if (idToTouchDictionary.ContainsKey(id))
{
if (recognizerHit != idToTouchDictionary[id])
{
if (idToTouchDictionary[id] != null)
{
FireEvent(idToTouchDictionary[id], id, TouchActionType.Exited, touch, true);
}
if (recognizerHit != null)
{
FireEvent(recognizerHit, id, TouchActionType.Entered, touch, true);
}
idToTouchDictionary[id] = recognizerHit;
}
}
else
{
if (recognizerHit != null)
{
FireEvent(recognizerHit, id, TouchActionType.Entered, touch, true);
}
idToTouchDictionary[id] = recognizerHit;
}
}
public override void TouchesMoved(NSSet touches, UIEvent evt)
{
base.TouchesMoved(touches, evt);
UITouch touch = touches.AnyObject as UITouch;
currentPoint = touch.LocationInView(touch.View);
if (newPoint || isEndPoint)
{
if (isSnapToGrid)
{
bool stillInRange = CheckDragProximity();
if (!stillInRange)
{
UpdatePoint();
}
}
else
{
UpdatePoint();
};
}
else
{
if (touchMonitoring)
{
bool stillInRange = CheckDragProximity();
if (stillInRange)
{
if (stopwatch.ElapsedMilliseconds > longPressTime)
{
touchMonitoring = false;
RemovePoint();
}
}
else
{
UpdatePoint();
}
}
}
}
public override void EndTracking(UITouch uitouch, UIEvent uievent)
{
base.EndTracking(uitouch, uievent);
var touchLocationInView = uitouch?.LocationInView(this);
if (touchLocationInView == null)
{
return;
}
//let offset = type(of: self).validBoundsOffset
//let validBounds = CGRect(x: bounds.origin.x - offset, y: bounds.origin.y - offset, width: bounds.width + (2 * offset), height: bounds.height + (2 * offset))
var validBounds = Bounds;
if (validBounds.Contains(touchLocationInView.Value))
{
Checked = !Checked;
SendActionForControlEvents(UIControlEvent.ValueChanged);
}
}
public override void TouchesBegan(NSSet touches, UIEvent evt)
{
base.TouchesBegan(touches, evt);
UITouch touch = touches.AnyObject as UITouch;
if (touch != null)
{
PointF pt = touch.LocationInView(this);
if (_path.ContainsPoint(pt, true))
{
Title = "You touched the square";
}
else
{
Title = "You didn't touch the square";
}
}
}
public override void TouchesBegan(NSSet touches, UIEvent evt)
{
UITouch aTouch = (UITouch)touches.AnyObject;
PointF location = aTouch.LocationInView(this);
var coordinate = _mapView.ConvertPoint(location, this);
if (this.HasPoint)
{
_mapView.RemoveAnnotation(point);
point = new PointAnnotation(coordinate, "Meeting Place", "Here");
_mapView.AddAnnotation(point);
}
else
{
point = new PointAnnotation(coordinate, "Meeting Place", "Here");
_mapView.AddAnnotation(point);
this.HasPoint = true;
}
}
public override void TouchesMoved(NSSet touches, UIEvent evt)
{
base.TouchesMoved(touches, evt);
if (Mode == CropMode.Editing)
{
// adjust by the amount moved
UITouch touch = touches.AnyObject as UITouch;
if (touch != null)
{
CGPoint touchPoint = touch.LocationInView(View);
CGPoint delta = new CGPoint(touchPoint.X - LastTapPos.X, touchPoint.Y - LastTapPos.Y);
MoveCropView(delta);
LastTapPos = touchPoint;
}
}
}
private PointerState GetState(UITouch touch)
{
switch (touch.Phase)
{
case UITouchPhase.Began:
return(PointerState.Down);
case UITouchPhase.Moved:
case UITouchPhase.Stationary:
return(PointerState.Move);
case UITouchPhase.Ended:
return(PointerState.Up);
case UITouchPhase.Cancelled:
return(PointerState.Cancel);
}
throw new ArgumentException("Got an invalid Touch event in GetState");
}
public override void TouchesMoved(NSSet touches, UIEvent evt)
{
base.TouchesMoved(touches, evt);
UITouch touch = touches.AnyObject as UITouch;
/* MyImageインスタンスの現在の座標 */
var newPoint = touch.LocationInView(this);
/* MyImageインスタンスの前回の座標 */
var previousPoint = touch.PreviousLocationInView(this);
/* 差分を計算 */
nfloat dx = newPoint.X - previousPoint.X;
nfloat dy = newPoint.Y - previousPoint.Y;
/* コールバック */
var el = this.Element as MyImage;
el.Drug(el, new DrugEventArgs(el, dx, dy));
}
public override void TouchesBegan(NSSet touches, UIEvent touchEvent)
{
foreach (UITouch touch in touches)
{
if (TouchIsInRect(touch, padRect))
{
padTouch = padTouch ?? touch;
}
else if (panningTouch == null)
{
panningTouch = (UITouch)touches.AnyObject;
}
if (padTouch != null && panningTouch != null)
{
break;
}
}
base.TouchesBegan(touches, touchEvent);
}
public override void TouchesMoved(NSSet touches, UIEvent theEvent)
{
// base.TouchesMoved(touches, evt);
UITouch touch = (UITouch)touches.AnyObject;
CGPoint gestureEndPoint = touch.LocationInView(this);
this.GestureDirection = this.GetGestureDirectionWithTouch(touch);
bool canScroll = this.CanScroll(this.GestureDirection);
if (canScroll)
{
if (this.TheDelegate != null)
{
this.TheDelegate.iOSCardsView_Scrolling(this.GestureDirection);
}
}
if ((this.GestureDirection == UISwipeGestureRecognizerDirection.Up | this.GestureDirection == UISwipeGestureRecognizerDirection.Down) && canScroll)
{
var offsetFrame = new CGRect(new CGPoint(this.Frame.X, this.Frame.Location.Y + (gestureEndPoint.Y - this.GestureStartPoint.Y)), this.Frame.Size);
this.Frame = offsetFrame;
}
else if (this.GestureDirection == UISwipeGestureRecognizerDirection.Left | this.GestureDirection == UISwipeGestureRecognizerDirection.Right)
{
if (this.GestureView.IsEqual(this) | !this.ViewCanSwipe(this.GestureView))
{
return;
}
gestureEndPoint = touch.LocationInView(this.GestureView);
var offsetFrame = new CGRect(new CGPoint(this.GestureView.Frame.X + (gestureEndPoint.X - this.GestureStartPoint.X), this.GestureView.Frame.Y), this.GestureView.Frame.Size);
this.GestureView.Frame = offsetFrame;
if (this.GestureView.Alpha > 0.4)
{
this.GestureView.Alpha = this.GestureView.Alpha - 0.03f;
}
}
}
public override void TouchesBegan(NSSet touches, UIEvent evt)
{
base.TouchesBegan(touches, evt);
// If Multitouch is enabled, report the number of fingers down
TouchStatus.Text = string.Format("Number of fingers {0}", touches.Count);
// Get the current touch
UITouch touch = touches.AnyObject as UITouch;
if (touch != null)
{
// Check to see if any of the images have been touched
if (TouchImage.Frame.Contains(touch.LocationInView(TouchView)))
{
// Fist image touched
TouchImage.Image = UIImage.FromBundle("TouchMe_Touched.png");
TouchStatus.Text = "Touches Began";
}
else if (touch.TapCount == 2 && DoubleTouchImage.Frame.Contains(touch.LocationInView(TouchView)))
{
// Second image double-tapped, toggle bitmap
if (imageHighlighted)
{
DoubleTouchImage.Image = UIImage.FromBundle("DoubleTapMe.png");
TouchStatus.Text = "Double-Tapped Off";
}
else
{
DoubleTouchImage.Image = UIImage.FromBundle("DoubleTapMe_Highlighted.png");
TouchStatus.Text = "Double-Tapped On";
}
imageHighlighted = !imageHighlighted;
}
else if (DragImage.Frame.Contains(touch.LocationInView(View)))
{
// Third image touched, prepare to drag
touchStartedInside = true;
}
}
}
public override bool ShouldReceiveTouch(UIGestureRecognizer recognizer, UITouch touch)
{
if (recognizer.View.IsDescendantOfView(touch.View))
{
return(true);
}
if (recognizer.View is not IVisualNativeElementRenderer elementRenderer ||
elementRenderer.Control == null)
{
return(false);
}
if (elementRenderer.Control == touch.View ||
elementRenderer.Control.Subviews.Any(view => view == touch.View))
{
return(true);
}
return(false);
}
public override bool BeginTracking(UITouch touch, UIEvent uievent)
{
_previousTouchPoint = (CGPoint)touch.LocationInView((UIView)this);
// hit test the knob layers
if (_lowerKnobLayer.PaintFrame.Contains(_previousTouchPoint))
{
_lowerKnobLayer.Highlighted = true;
_lowerKnobLayer.SetNeedsDisplay();
}
else if (_upperKnobLayer.PaintFrame.Contains(_previousTouchPoint))
{
_upperKnobLayer.Highlighted = true;
_upperKnobLayer.SetNeedsDisplay();
}
RawHighValue = HighValue;
RawLowValue = LowValue;
return(_upperKnobLayer.Highlighted || _lowerKnobLayer.Highlighted);
}
public override void TouchesBegan(NSSet touches, UIEvent evt)
{
if (trackedTouch == null)
{
trackedTouch = (UITouch)touches.FirstOrDefault();
initialTimestamp = trackedTouch.Timestamp;
if (!IsForPencil)
{
BeginIfNeeded(null);
}
fingerStartTimer = NSTimer.CreateScheduledTimer(cancellationTimeInterval, BeginIfNeeded);
}
if (Append(Touches(touches), evt))
{
if (IsForPencil)
{
State = Began;
}
}
}
public override bool ContinueTracking(UITouch touch, UIEvent uievent)
{
CGPoint point = touch.LocationInView(this);
percent = (point.X - knobWidth / 2.0f) / (Bounds.Width - knobWidth);
if (percent < 0.0f)
{
percent = 0.0f;
}
if (percent > 1.0f)
{
percent = 1.0f;
}
if ((oldPercent < 0.25f && percent > 0.5f) || (oldPercent > 0.75f && percent < 0.5f))
{
mustFlip = false;
}
SetNeedsDisplay();
SendActionForControlEvents(UIControlEvent.TouchDragInside);
return(true);
}
private void handleUITouch(UITouch touch)
{
var location = touch.LocationInView(null);
PendingInputs.Enqueue(new MousePositionAbsoluteInput {
Position = new Vector2((float)location.X * view.Scale, (float)location.Y * view.Scale)
});
switch (touch.Phase)
{
case UITouchPhase.Moved:
case UITouchPhase.Began:
PendingInputs.Enqueue(new MouseButtonInput(MouseButton.Left, true));
break;
case UITouchPhase.Cancelled:
case UITouchPhase.Ended:
PendingInputs.Enqueue(new MouseButtonInput(MouseButton.Left, false));
break;
}
}
public LinePoint (UITouch touch, int sequenceNumber, PointType pointType)
{
SequenceNumber = sequenceNumber;
Type = touch.Type;
PointType = pointType;
Timestamp = touch.Timestamp;
var view = touch.View;
Location = touch.LocationInView (view);
PreciseLocation = touch.GetPreciseLocation (view);
AzimuthAngle = touch.GetAzimuthAngle (view);
EstimatedProperties = touch.EstimatedProperties;
EstimatedPropertiesExpectingUpdates = touch.EstimatedPropertiesExpectingUpdates;
AltitudeAngle = touch.AltitudeAngle;
Force = (Type == UITouchType.Stylus || touch.Force > 0) ? touch.Force : 1f;
if (EstimatedPropertiesExpectingUpdates != 0)
PointType = this.PointType.Add (PointType.NeedsUpdate);
EstimationUpdateIndex = touch.EstimationUpdateIndex;
}
public override void TouchesMoved(NSSet touches, UIEvent evt)
{
CanvasView.DrawTouches(touches, evt);
var touch = (UITouch)touches.FirstOrDefault();
if (touch == null)
{
return;
}
UpdateReticleView(touch);
// Use the last predicted touch to update the reticle.
UITouch[] predictedTouches = evt?.GetPredictedTouches(touch);
UITouch predictedTouch = predictedTouches?.LastOrDefault();
if (predictedTouch != null)
{
UpdateReticleView(predictedTouch, true);
}
}
public override void TouchesEnded(NSSet touches, UIEvent evt)
{
UITouch touch = touches.AnyObject as UITouch;
//Obtain the location of the touch and add it to the current path and current_points array.
CGPoint touchLocation = touch.LocationInView(this);
currentPath.AddLineTo(touchLocation);
currentPoints.Add(touchLocation);
//Obtain the smoothed path and the points array for that path.
currentPath = smoothedPathWithGranularity(40, out currentPoints);
//Add the smoothed path and points array to their Lists.
paths.Add(currentPath);
points.Add(currentPoints.ToArray());
//Obtain the image for the imported signature and display it in the image view.
imageView.Image = GetImage(false);
updateBounds(touchLocation);
SetNeedsDisplay();
}
public override void TouchesMoved(NSSet touches, UIEvent evt)
{
base.TouchesMoved(touches, evt);
UITouch touch = touches.AnyObject as UITouch;
PointF point = touch.LocationInView(this);
float dx = point.X - Centre.X;
float dy = point.Y - Centre.Y;
float r2 = dx * dx + dy * dy;
iOutsideOuter = (r2 > iOuterRadius * iOuterRadius);
iOutsideInner = (r2 > iInnerRadius * iInnerRadius);
if (iTouchedOuter /*&& iOutsideInner*/)
{
UpdateAngle(point);
}
SetNeedsDisplay();
}
// handle touch events
public override void TouchesEnded(NSSet touches, UIEvent evt)
{
base.TouchesEnded(touches, evt);
// Get the touch that was activated within the view
UITouch myTouch = (UITouch)touches.AnyObject;
if (gameTileImagesArray.Contains(myTouch.View) && selAllowed)
{
// get the image at the postion within the view
UIImageView gameBoardTile = (UIImageView)myTouch.View;
// Get the index of the image within out array
int tileIndex = gameTileImagesArray.IndexOf(gameBoardTile);
int imageIndex = (tileIndex < gameBoardSize ? tileIndex :
tileIndex - gameBoardSize);
// call our instance method to handle flipping of the chosen tiles
flipGameBoardTiles(gameBoardTile, tileIndex, imageIndex);
}
}
private bool chart_clickBackGround(UIGestureRecognizer recognizer, UITouch touch)
{
//Console.WriteLine("BackGround clicked");
return false;
}
void UpdateReticleView (UITouch touch, bool predicated = false)
{
if (touch == null)
return;
ReticleView.PredictedDotLayer.Hidden = !predicated;
ReticleView.PredictedLineLayer.Hidden = !predicated;
ReticleView.Center = touch.LocationInView (touch.View);
var azimuthAngle = touch.GetAzimuthAngle (touch.View);
var azimuthUnitVector = touch.GetAzimuthUnitVector (touch.View);
var altitudeAngle = touch.AltitudeAngle;
if (predicated) {
ReticleView.PredictedAzimuthAngle = azimuthAngle;
ReticleView.PredictedAzimuthUnitVector = azimuthUnitVector;
ReticleView.PredictedAzimuthAngle = altitudeAngle;
} else {
ReticleView.ActualAzimuthAngle = azimuthAngle;
ReticleView.ActualAzimuthUnitVector = azimuthUnitVector;
ReticleView.ActualAzimuthAngle = altitudeAngle;
}
}
bool ShouldReceiveTouch (UIGestureRecognizer gestureRecognizer, UITouch touch)
{
if (touch.View != View)
return false;
return true;
}
internal bool shouldReceiveTouch(UIGestureRecognizer gesture, UITouch touch)
{
if (ShouldReceiveTouch != null)
return ShouldReceiveTouch(gesture, touch);
return true;
}
public bool beginTrackingWithTouch( UITouch touch ,/*withEvent*/ UIEvent @event){
bool begins = base.BeginTracking(touch ,/*withEvent*/ @event);
/*const*/ double continuousPressTimeInterval = this.continuousPressTimeInterval;
if (begins && continuousPressTimeInterval > 0f) {
this._beginContinuousPressDelayed();
}
return begins;
}
internal void RemoveTouch(UITouch touch)
{
if(touchState.ContainsKey(touch.Handle))
touchState.Remove(touch.Handle);
}
public override bool BeginTracking (UITouch uitouch, UIEvent uievent)
{
SetNeedsDisplay ();
isPressed = true;
return base.BeginTracking (uitouch, uievent);
}
UISwipeGestureRecognizerDirection GetGestureDirectionWithTouch(UITouch touch)
{
CGPoint gestureEndPoint = touch.LocationInView(this);
double dx = Math.Abs(this.GestureStartPoint.X - gestureEndPoint.X);
nfloat dy = -1 * (gestureEndPoint.Y - this.GestureStartPoint.Y);
if (dx > 20)
{
return UISwipeGestureRecognizerDirection.Right;
}
if (dy < 0)
{
return UISwipeGestureRecognizerDirection.Down;
}
else if (dy > 0)
{
return UISwipeGestureRecognizerDirection.Up;
}
return UISwipeGestureRecognizerDirection.Down;
}
public override void TouchesBegan (NSSet touches, UIEvent evt)
{
if (trackedTouch == null) {
trackedTouch = (UITouch)touches.FirstOrDefault ();
initialTimestamp = trackedTouch.Timestamp;
if (!IsForPencil)
BeginIfNeeded (null);
fingerStartTimer = NSTimer.CreateScheduledTimer (cancellationTimeInterval, BeginIfNeeded);
}
if (Append (Touches(touches), evt)) {
if (IsForPencil)
State = Began;
}
}
void Collect (Stroke stroke, UITouch touch, UIView view, bool coalesced, bool predicted)
{
if (view == null)
throw new ArgumentNullException ();
// Only collect samples that actually moved in 2D space.
var location = touch.GetPreciseLocation (view);
var previousSample = stroke.Samples.LastOrDefault ();
if (Distance (previousSample?.Location, location) < 0.003)
return;
var sample = new StrokeSample {
Timestamp = touch.Timestamp,
Location = location,
Coalesced = coalesced,
Predicted = predicted
};
bool collectForce = touch.Type == UITouchType.Stylus || view.TraitCollection.ForceTouchCapability == UIForceTouchCapability.Available;
if (collectForce)
sample.Force = touch.Force;
if (touch.Type == UITouchType.Stylus) {
var estimatedProperties = touch.EstimatedProperties;
sample.EstimatedProperties = estimatedProperties;
sample.EstimatedPropertiesExpectingUpdates = touch.EstimatedPropertiesExpectingUpdates;
sample.Altitude = touch.AltitudeAngle;
sample.Azimuth = touch.GetAzimuthAngle (view);
if (stroke.Samples.Count == 0 && estimatedProperties.HasFlag (UITouchProperties.Azimuth)) {
stroke.ExpectsAltitudeAzimuthBackfill = true;
} else if (stroke.ExpectsAltitudeAzimuthBackfill &&
!estimatedProperties.HasFlag (UITouchProperties.Azimuth)) {
for (int index = 0; index < stroke.Samples.Count; index++) {
var priorSample = stroke.Samples [index];
var updatedSample = priorSample;
if (updatedSample.EstimatedProperties.HasFlag (UITouchProperties.Altitude)) {
updatedSample.EstimatedProperties &= ~UITouchProperties.Altitude;
updatedSample.Altitude = sample.Altitude;
}
if (updatedSample.EstimatedProperties.HasFlag (UITouchProperties.Azimuth)) {
updatedSample.EstimatedProperties &= ~UITouchProperties.Azimuth;
updatedSample.Azimuth = sample.Azimuth;
}
stroke.Update (updatedSample, index);
}
stroke.ExpectsAltitudeAzimuthBackfill = false;
}
}
if (predicted) {
stroke.AddPredicted (sample);
} else {
var index = stroke.Add (sample);
if (touch.EstimatedPropertiesExpectingUpdates != 0) {
outstandingUpdateIndexes [touch.EstimationUpdateIndex] = new StrokeIndex {
Stroke = stroke,
Index = index
};
}
}
}
public override bool BeginTracking(UITouch uitouch, UIEvent uievent)
{
return Wrap.Function("BeginTracking", delegate()
{
if (SelectedToken != null && uitouch.View == this)
{
this.DeselectSelectedToken();
}
return base.BeginTracking(uitouch, uievent);
});
}
public void endTrackingWithTouch( UITouch touch ,/*withEvent*/ UIEvent @event){
base.EndTracking(touch ,/*withEvent*/ @event);
this._cancelContinousPressIfNeeded();
}
public override bool ContinueTracking(UITouch uitouch, UIEvent uievent)
{
var touch = uievent.AllTouches.AnyObject as UITouch;
if (touch != null) pressed = Bounds.Contains(touch.LocationInView(this));
return base.ContinueTracking(uitouch, uievent);
}
bool OnShouldReceiveTouch(UIGestureRecognizer recognizer, UITouch touch)
{
foreach (UIView v in ViewAndSuperviewsOfView(touch.View))
{
if (v is UITableView || v is UITableViewCell || v.CanBecomeFirstResponder)
return false;
}
return true;
}
public override void Reset ()
{
Stroke = new Stroke ();
trackedTouch = null;
var timer = fingerStartTimer;
if (timer != null) {
timer.Invalidate ();
fingerStartTimer = null;
}
base.Reset ();
}
internal void UpdateTouch(UITouch touch, object theObject)
{
if(touchState.ContainsKey(touch.Handle))
touchState[touch.Handle] = theObject;
else
touchState.Add(touch.Handle,theObject);
}