void StrokeUpdated(StrokeGestureRecognizer strokeGesture)
{
if (strokeGesture == pencilStrokeRecognizer)
{
lastSeenPencilInteraction = DateTime.Now.Ticks;
}
var state = strokeGesture.State;
Stroke stroke = null;
if (state != Cancelled)
{
stroke = strokeGesture.Stroke;
if (state == Began || (state == Ended && strokeCollection.ActiveStroke == null))
{
strokeCollection.ActiveStroke = stroke;
leftRingControl.CancelInteraction();
}
}
else
{
strokeCollection.ActiveStroke = null;
}
if (stroke != null)
{
if (state == Ended)
{
if (strokeGesture == pencilStrokeRecognizer)
{
// Make sure we get the final stroke update if needed.
stroke.ReceivedAllNeededUpdatesBlock = () => {
ReceivedAllUpdatesForStroke(stroke);
};
}
strokeCollection.TakeActiveStroke();
}
}
cgView.StrokeCollection = strokeCollection;
}
public void Activated (StrokeGestureRecognizer sender)
{
action (sender);
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
var bounds = View.Bounds;
var screenBounds = UIScreen.MainScreen.Bounds;
var maxScreenDimension = NMath.Max(screenBounds.Width, screenBounds.Height);
UIViewAutoresizing flexibleDimensions = FlexibleWidth | FlexibleHeight;
scrollView = new UIScrollView(bounds)
{
AutoresizingMask = flexibleDimensions
};
View.AddSubview(scrollView);
var frame = new CGRect(CGPoint.Empty, new CGSize(maxScreenDimension, maxScreenDimension));
cgView = new StrokeCGView(frame)
{
AutoresizingMask = flexibleDimensions
};
View.BackgroundColor = UIColor.White;
canvasContainerView = CanvasContainerView.FromCanvasSize(cgView.Frame.Size);
canvasContainerView.DocumentView = cgView;
scrollView.ContentSize = canvasContainerView.Frame.Size;
scrollView.ContentOffset = new CGPoint((canvasContainerView.Frame.Width - scrollView.Bounds.Width) / 2,
(canvasContainerView.Frame.Height - scrollView.Bounds.Height) / 2);
scrollView.AddSubview(canvasContainerView);
scrollView.BackgroundColor = canvasContainerView.BackgroundColor;
scrollView.MaximumZoomScale = 3;
scrollView.MinimumZoomScale = 0.5f;
scrollView.PanGestureRecognizer.AllowedTouchTypes = TouchTypes(UITouchType.Direct);
scrollView.PinchGestureRecognizer.AllowedTouchTypes = TouchTypes(UITouchType.Direct);
scrollView.Delegate = this;
// We put our UI elements on top of the scroll view, so we don't want any of the
// delay or cancel machinery in place.
scrollView.DelaysContentTouches = false;
fingerStrokeRecognizer = new StrokeGestureRecognizer(StrokeUpdated)
{
Delegate = this,
CancelsTouchesInView = false,
IsForPencil = false,
CoordinateSpaceView = cgView
};
scrollView.AddGestureRecognizer(fingerStrokeRecognizer);
pencilStrokeRecognizer = new StrokeGestureRecognizer(StrokeUpdated)
{
Delegate = this,
CancelsTouchesInView = false,
CoordinateSpaceView = cgView,
IsForPencil = true
};
scrollView.AddGestureRecognizer(pencilStrokeRecognizer);
SetupConfigurations();
var onPhone = UIDevice.CurrentDevice.UserInterfaceIdiom == UIUserInterfaceIdiom.Phone;
var ringDiameter = onPhone ? 66f : 74f;
var ringImageInset = onPhone ? 12f : 14f;
var borderWidth = 1f;
var ringOutset = ringDiameter / 2 - (NMath.Floor(NMath.Sqrt((ringDiameter * ringDiameter) / 8) - borderWidth));
var ringFrame = new CGRect(-ringOutset, View.Bounds.Height - ringDiameter + ringOutset, ringDiameter, ringDiameter);
var ringControl = new RingControl(ringFrame, configurations.Length);
ringControl.AutoresizingMask = FlexibleRightMargin | FlexibleTopMargin;
View.AddSubview(ringControl);
leftRingControl = ringControl;
string [] imageNames = { "Calligraphy", "Ink", "Debug" };
for (int index = 0; index < leftRingControl.RingViews.Count; index++)
{
var ringView = leftRingControl.RingViews [index];
ringView.ActionClosure = configurations [index];
var imageView = new UIImageView(ringView.Bounds.Inset(ringImageInset, ringImageInset));
imageView.Image = UIImage.FromBundle(imageNames [index]);
imageView.AutoresizingMask = FlexibleLeftMargin | FlexibleRightMargin | FlexibleTopMargin | FlexibleBottomMargin;
ringView.AddSubview(imageView);
}
clearButton = AddButton("clear", ClearButtonAction);
SetupPencilUI();
}
public override void ViewDidLoad ()
{
base.ViewDidLoad ();
var bounds = View.Bounds;
var screenBounds = UIScreen.MainScreen.Bounds;
var maxScreenDimension = NMath.Max (screenBounds.Width, screenBounds.Height);
UIViewAutoresizing flexibleDimensions = FlexibleWidth | FlexibleHeight;
scrollView = new UIScrollView (bounds) {
AutoresizingMask = flexibleDimensions
};
View.AddSubview (scrollView);
var frame = new CGRect (CGPoint.Empty, new CGSize (maxScreenDimension, maxScreenDimension));
cgView = new StrokeCGView (frame) {
AutoresizingMask = flexibleDimensions
};
View.BackgroundColor = UIColor.White;
canvasContainerView = CanvasContainerView.FromCanvasSize (cgView.Frame.Size);
canvasContainerView.DocumentView = cgView;
scrollView.ContentSize = canvasContainerView.Frame.Size;
scrollView.ContentOffset = new CGPoint ((canvasContainerView.Frame.Width - scrollView.Bounds.Width) / 2,
(canvasContainerView.Frame.Height - scrollView.Bounds.Height) / 2);
scrollView.AddSubview (canvasContainerView);
scrollView.BackgroundColor = canvasContainerView.BackgroundColor;
scrollView.MaximumZoomScale = 3;
scrollView.MinimumZoomScale = 0.5f;
scrollView.PanGestureRecognizer.AllowedTouchTypes = TouchTypes (UITouchType.Direct);
scrollView.PinchGestureRecognizer.AllowedTouchTypes = TouchTypes (UITouchType.Direct);
scrollView.Delegate = this;
// We put our UI elements on top of the scroll view, so we don't want any of the
// delay or cancel machinery in place.
scrollView.DelaysContentTouches = false;
fingerStrokeRecognizer = new StrokeGestureRecognizer (StrokeUpdated) {
Delegate = this,
CancelsTouchesInView = false,
IsForPencil = false,
CoordinateSpaceView = cgView
};
scrollView.AddGestureRecognizer (fingerStrokeRecognizer);
pencilStrokeRecognizer = new StrokeGestureRecognizer (StrokeUpdated) {
Delegate = this,
CancelsTouchesInView = false,
CoordinateSpaceView = cgView,
IsForPencil = true
};
scrollView.AddGestureRecognizer (pencilStrokeRecognizer);
SetupConfigurations ();
var onPhone = UIDevice.CurrentDevice.UserInterfaceIdiom == UIUserInterfaceIdiom.Phone;
var ringDiameter = onPhone ? 66f : 74f;
var ringImageInset = onPhone ? 12f : 14f;
var borderWidth = 1f;
var ringOutset = ringDiameter / 2 - (NMath.Floor (NMath.Sqrt ((ringDiameter * ringDiameter) / 8) - borderWidth));
var ringFrame = new CGRect (-ringOutset, View.Bounds.Height - ringDiameter + ringOutset, ringDiameter, ringDiameter);
var ringControl = new RingControl (ringFrame, configurations.Length);
ringControl.AutoresizingMask = FlexibleRightMargin | FlexibleTopMargin;
View.AddSubview (ringControl);
leftRingControl = ringControl;
string [] imageNames = { "Calligraphy", "Ink", "Debug" };
for (int index = 0; index < leftRingControl.RingViews.Count; index++) {
var ringView = leftRingControl.RingViews [index];
ringView.ActionClosure = configurations [index];
var imageView = new UIImageView (ringView.Bounds.Inset (ringImageInset, ringImageInset));
imageView.Image = UIImage.FromBundle (imageNames [index]);
imageView.AutoresizingMask = FlexibleLeftMargin | FlexibleRightMargin | FlexibleTopMargin | FlexibleBottomMargin;
ringView.AddSubview (imageView);
}
clearButton = AddButton ("clear", ClearButtonAction);
SetupPencilUI ();
}
void StrokeUpdated (StrokeGestureRecognizer strokeGesture)
{
if (strokeGesture == pencilStrokeRecognizer)
lastSeenPencilInteraction = DateTime.Now.Ticks;
var state = strokeGesture.State;
Stroke stroke = null;
if (state != Cancelled) {
stroke = strokeGesture.Stroke;
if (state == Began || (state == Ended && strokeCollection.ActiveStroke == null)) {
strokeCollection.ActiveStroke = stroke;
leftRingControl.CancelInteraction ();
}
} else {
strokeCollection.ActiveStroke = null;
}
if (stroke != null) {
if (state == Ended) {
if (strokeGesture == pencilStrokeRecognizer) {
// Make sure we get the final stroke update if needed.
stroke.ReceivedAllNeededUpdatesBlock = () => {
ReceivedAllUpdatesForStroke (stroke);
};
}
strokeCollection.TakeActiveStroke ();
}
}
cgView.StrokeCollection = strokeCollection;
}
public void Activated(StrokeGestureRecognizer sender)
{
action(sender);
}
