// http://stackoverflow.com/questions/3552108/finding-closest-object-to-cgpoint b/c I'm lazy
CGFloat distanceBetween(CGRect rect, CGPoint point)
{
if (rect.Contains(point))
{
return(0);
}
var closest = rect.Location;
if ((rect.Location.X + rect.Size.Width < point.X))
{
closest.X += rect.Size.Width;
}
else
if ((point.X > rect.Location.X))
{
closest.X = point.X;
}
if ((rect.Location.Y + rect.Size.Height < point.Y))
{
closest.Y += rect.Size.Height;
}
else
if ((point.Y > rect.Location.Y))
{
closest.Y = point.Y;
}
var a = Math.Pow((double)(closest.Y - point.Y), 2);
var b = Math.Pow((double)(closest.X - point.X), 2);
return((CGFloat)(Math.Sqrt(a + b)));
}
private void HandleSingleTap(UITapGestureRecognizer gesture)
{
CGPoint point = gesture.LocationInView(customTab);
if (typesRect.Contains(point))
{
featuresCollectionView.Hidden = true;
typesCollectionView.Hidden = false;
typeSampleView.Hidden = false;
featureSampleView.Hidden = true;
IsTypesSampleView = true;
selectedTabHighlightView.Frame = new CGRect(0, customTabHeight - 5, this.View.Frame.Size.Width / 2, 5);
typeSampleView.ViewWillAppear();
featureSampleView.ViewWillDisappear();
}
else if (featuresRect.Contains(point))
{
typesCollectionView.Hidden = true;
featuresCollectionView.Hidden = false;
typeSampleView.Hidden = true;
featureSampleView.Hidden = false;
IsTypesSampleView = false;
selectedTabHighlightView.Frame = new CGRect(this.View.Frame.Size.Width / 2, customTabHeight - 5, this.View.Frame.Size.Width / 2, 5);
if (firstTimeLoad)
{
LoadSample();
firstTimeLoad = false;
}
else
{
featureSampleView.ViewWillAppear();
typeSampleView.ViewWillDisappear();
}
}
}
protected virtual void CenterViewInScroll(UIView viewToCenter, UIScrollView scrollView, nfloat keyboardHeight)
{
var contentInsets = new UIEdgeInsets(0.0f, 0.0f, keyboardHeight, 0.0f);
scrollView.ContentInset = contentInsets;
scrollView.ScrollIndicatorInsets = contentInsets;
// Position of the active field relative isnside the scroll view
// If activeField is hidden by keyboard, scroll it so it's visible
CGRect viewRectAboveKeyboard = new CGRect(View.Frame.Location, new CGSize(View.Frame.Width, View.Frame.Size.Height - keyboardHeight));
CGRect activeFieldAbsoluteFrame = ViewToCenterOnKeyboardShown.Superview.ConvertRectToView(ViewToCenterOnKeyboardShown.Frame, View);
// activeFieldAbsoluteFrame is relative to this.View so does not include any scrollView.ContentOffset
//fix y position
if (activeFieldAbsoluteFrame.Y < viewRectAboveKeyboard.Y)
{
activeFieldAbsoluteFrame.Y += viewRectAboveKeyboard.Y;
}
else
{
activeFieldAbsoluteFrame.Y += 5f;
}
// Check if the activeField will be partially or entirely covered by the keyboard
if (!viewRectAboveKeyboard.Contains(activeFieldAbsoluteFrame))
{
ScrollToPointKeyboardAction(scrollView, activeFieldAbsoluteFrame, viewRectAboveKeyboard, keyboardHeight);
}
}
void CheckCollision(UITouch touch, IStorage contactBase, TouchActionEventArgs.TouchActionType type)
{
long id = touch.Handle.ToInt64();
List <int> contactIndexes = new List <int>();
List <Xamarin.Forms.View> contactViews = new List <Xamarin.Forms.View>();
isInContact = false;
if (contactBase != null)
{
var coordinate = touch.LocationInView(null);
foreach (var cell in contactBase.GetGridCells())
{
var child = cell.GetButton();
var contactRect = new CGRect(child.GetAbsolutePosition().X, child.GetAbsolutePosition().Y, child.Width, child.Height);
if (contactRect.Contains(coordinate))
{
isInContact = true;
contactIndexes.Add(cell.Index);
contactViews.Add(child);
}
}
}
if (isInContact)
{
FireEvent(idToTouchDictionary[id], id, type, touch, true, contactIndexes, contactViews);
}
else
{
FireEvent(idToTouchDictionary[id], id, type, touch, false, null, null);
}
}
/// <summary>
/// Determines whether this instance can start sliding given the touch position and the
/// current location/size of the top view.
/// Note that touchPosition is in Screen coordinate.
/// </summary>
/// <returns>true</returns>
/// <c>false</c>
/// <param name="touchPosition">Touch position.</param>
/// <param name="topViewCurrentFrame">Top view's current frame.</param>
public override bool CanStartSliding(CGPoint touchPosition, CGRect topViewCurrentFrame)
{
if (!IsVisible)
{
return(touchPosition.X >= View.Bounds.Size.Width - EdgeTolerance && touchPosition.X <= View.Bounds.Size.Width);
}
return(topViewCurrentFrame.Contains(touchPosition));
}
/// <summary>
/// Determines whether this instance can start sliding given the touch position and the
/// current location/size of the top view.
/// Note that touchPosition is in Screen coordinate.
/// </summary>
/// <returns>true</returns>
/// <c>false</c>
/// <param name="touchPosition">Touch position.</param>
/// <param name="topViewCurrentFrame">Top view's current frame.</param>
public override bool CanStartSliding(CGPoint touchPosition, CGRect topViewCurrentFrame)
{
if (!IsVisible)
{
return(touchPosition.X >= 0.0f && touchPosition.X <= EdgeTolerance);
}
return(topViewCurrentFrame.Contains(touchPosition));
}
bool IsLeftPointContainedWithinBezelRect(CGPoint point)
{
nfloat bezelWidth = SlideMenuOptions.LeftBezelWidth;
CGRect leftBezelRect = new CGRect(0, 0, 0, 0);
CGRect tempRect = new CGRect(0, 0, 0, 0);
View.Bounds.Divide(bezelWidth, CGRectEdge.MinXEdge, out leftBezelRect, out tempRect);
return(leftBezelRect.Contains(point));
}
public override bool PointInside(CGPoint point, UIEvent uievent)
{
if (uievent.Type == UIEventType.Touches)
{
var rect = new CGRect(0, 0, Frame.Width, Frame.Height + AutoCompleteTableView.Frame.Height);
return(rect.Contains(point));
}
return(base.PointInside(point, uievent));
}
/// <summary>
/// Points the inside.
/// </summary>
/// <returns><c>true</c>, if inside was pointed, <c>false</c> otherwise.</returns>
/// <param name="point">Point.</param>
/// <param name="uievent">Uievent.</param>
public override bool PointInside(CGPoint point, UIEvent uievent)
{
CGRect rect = Bounds;
rect.X -= Inset.Left;
rect.Y -= Inset.Top;
rect.Width += Inset.Left + Inset.Right;
rect.Height += Inset.Top + Inset.Bottom;
return(rect.Contains(point));
}
/// <summary>
/// Registers a scroll view with the current controller to handle adjusting the view
/// when a keyboard is shown to prevent edit fields from being hidden by the keyboard.
/// </summary>
/// <param name="scrollView">A scroll view.</param>
protected void RegisterKeyboardHooksForScrollView(UIScrollView scrollView)
{
if (this.scrollView != null)
{
throw new InvalidOperationException("A scroll view has already been registered.");
}
// TODO: what if keyboard is already shown?
this.scrollView = scrollView;
this.RegisterKeyboardDidShow(e =>
{
this.originalContentInsets = this.scrollView.ContentInset;
NSValue keyboardFrame = (NSValue)e.Notification.UserInfo.ObjectForKey(UIKeyboard.FrameBeginUserInfoKey);
nfloat keyboardHeight = keyboardFrame.CGRectValue.Height;
UIEdgeInsets contentInsets = new UIEdgeInsets(this.originalContentInsets.Value.Top, 0, keyboardHeight, 0);
this.scrollView.ContentInset = contentInsets;
this.scrollView.ScrollIndicatorInsets = contentInsets;
UIView firstResponder = this.FindFirstResponder(this.scrollView);
if (firstResponder != null)
{
CGRect visibleRect =
new CGRect(
this.View.Frame.X,
this.View.Frame.Y,
this.View.Frame.Width,
this.View.Frame.Height - keyboardHeight);
CGPoint locationInScrollView = this.scrollView.ConvertPointFromView(firstResponder.Frame.Location, firstResponder);
if (!visibleRect.Contains(locationInScrollView))
{
this.scrollView.ScrollRectToVisible(new CGRect(locationInScrollView, firstResponder.Frame.Size), false);
}
}
});
this.RegisterKeyboardWillBeHidden(e =>
{
// If the current view controller does not have the keyboard visible and then pushes another
// view controller onto the stack, this delegate (on the parent) will get invoked if the child
// view controller has the keyboard visible when navigating back to the parent view controller.
if (this.originalContentInsets.HasValue)
{
this.scrollView.ContentInset = this.originalContentInsets.Value;
this.scrollView.ScrollIndicatorInsets = this.originalContentInsets.Value;
}
this.originalContentInsets = null;
});
}
bool IsRightPointContainedWithinBezelRect(CGPoint point)
{
nfloat rightBezelWidth = SlideMenuOptions.RightBezelWidth;
CGRect rightBezelRect = new CGRect(0, 0, 0, 0);
CGRect tempRect = new CGRect(0, 0, 0, 0);
nfloat bezelWidth = View.Bounds.Width - rightBezelWidth;
View.Bounds.Divide(bezelWidth, CGRectEdge.MinXEdge, out rightBezelRect, out tempRect);
return(rightBezelRect.Contains(point));
}
public override bool PointInside(CGPoint point, UIEvent uievent)
{
var extendedArea = new CGRect
{
X = this.Bounds.Location.X - ExtendedArea,
Y = this.Bounds.Location.Y - ExtendedArea,
Width = this.Bounds.Size.Width + ExtendedArea * 2,
Height = this.Bounds.Size.Width + ExtendedArea * 2
};
return(extendedArea.Contains(point));
}
public override void RenderPointLabels(TKChartSeries series, CGRect bounds, CGContext ctx)
{
if (labelLayer != null)
{
labelLayer.RemoveFromSuperLayer();
}
for (int i = 0; i < series.Items.Length; i++)
{
TKChartData dataPoint = (TKChartData)series.Items [i];
CGPoint location = base.LocationForDataPoint(dataPoint, series, bounds);
if (!bounds.Contains(location))
{
continue;
}
TKChartPointLabel label = this.LabelForDataPoint(dataPoint, series, (uint)i);
CGRect labelRect;
TKChartPointLabelStyle labelStyle = series.Style.PointLabelStyle;
if (this.isSelectedPoint)
{
labelRect = new CGRect((float)(location.X - 17.5), (float)(location.Y - 10 - 2.5 * Math.Abs(labelStyle.LabelOffset.Vertical)), 35, 30);
if (labelRect.Y < bounds.Y)
{
this.labelLayer.IsOutsideBounds = true;
labelRect.Y = (float)(location.Y + 10 + 2.5 * Math.Abs(labelStyle.LabelOffset.Vertical) - labelRect.Size.Height);
}
else
{
this.labelLayer.IsOutsideBounds = false;
}
this.labelLayer.Frame = labelRect;
this.Render.AddSublayer(this.labelLayer);
this.labelLayer.SetNeedsDisplay();
}
else
{
CGSize labelSize = label.SizeThatFits(bounds.Size);
labelRect = new CGRect((float)(location.X - labelSize.Width / 2.0 + labelStyle.LabelOffset.Horizontal),
(float)(location.Y - labelSize.Height / 2.0 + labelStyle.LabelOffset.Vertical), labelSize.Width, labelSize.Height);
if (labelRect.Y < this.Render.Bounds.Y)
{
labelRect.Y = (float)(location.Y - labelSize.Height / 2.0 + Math.Abs(labelStyle.LabelOffset.Vertical));
}
label.DrawInContext(ctx, labelRect, new TKChartVisualPoint(new PointF(0, 0)), UIColor.White);
}
}
}
public static void ReactToKeyboardWillShowNotification(UIView notifiedView, UIView activeView, bool isCalledFromChildView, NSNotification notification)
{
var topView = isCalledFromChildView ? notifiedView.Superview : notifiedView;
if (activeView == null)
{
return;
}
var scrollView = activeView.FindSuperviewOfType(notifiedView, typeof(UIScrollView)) as UIScrollView;
if (scrollView == null)
{
return;
}
// find the topmost scrollview (fix problem with RootElement)
var nextSuperView = scrollView;
while (nextSuperView != null)
{
scrollView = nextSuperView;
nextSuperView = scrollView.FindSuperviewOfType(notifiedView, typeof(UIScrollView)) as UIScrollView;
}
var keyboardBounds = ((NSValue)notification.UserInfo.ValueForKey(UIKeyboard.FrameEndUserInfoKey)).RectangleFValue;
var contentInsets = new UIEdgeInsets(0.0f, 0.0f, keyboardBounds.Size.Height + topView.Frame.Y, 0.0f);
scrollView.ContentInset = contentInsets;
scrollView.ScrollIndicatorInsets = contentInsets;
// If activeField is hidden by keyboard, scroll it so it's visible
var viewRectAboveKeyboard = new CGRect(topView.Frame.Location, new CGSize(topView.Frame.Width, topView.Frame.Size.Height - keyboardBounds.Size.Height));
var activeFieldAbsoluteFrame = activeView.Superview.ConvertRectToView(activeView.Frame, topView);
// activeFieldAbsoluteFrame is relative to topView so does not include any scrollView.ContentOffset
activeFieldAbsoluteFrame.Y = activeFieldAbsoluteFrame.Y + topView.Frame.Y;
// change width of control before checking because we only check vertically
activeFieldAbsoluteFrame.Width = 10f;
// Check if the activeField will be partially or entirely covered by the keyboard
if (!viewRectAboveKeyboard.Contains(activeFieldAbsoluteFrame))
{
// Scroll to the activeField Y position + activeField.Height + current scrollView.ContentOffset.Y - the keyboard Height
var scrollPoint = new CGPoint(0.0f, activeFieldAbsoluteFrame.Location.Y + activeFieldAbsoluteFrame.Height + scrollView.ContentOffset.Y - viewRectAboveKeyboard.Height);
scrollView.SetContentOffset(scrollPoint, true);
}
}
private int GetCharacterIndexAtPoint(Point point)
{
if (!_drawRect.Contains(point))
{
return(-1);
}
// Find the tapped character's index
var partialFraction = (nfloat)0;
var pointInTextContainer = new CGPoint(point.X - _drawRect.X, point.Y - _drawRect.Y);
var characterIndex = (int)_layoutManager.CharacterIndexForPoint(pointInTextContainer, _layoutManager.TextContainers.FirstOrDefault(), ref partialFraction);
return(characterIndex);
}
/// <summary>
/// Determines whether this instance can start sliding given the touch position and the
/// current location/size of the top view.
/// Note that touchPosition is in Screen coordinate.
/// </summary>
/// <returns>true</returns>
/// <c>false</c>
/// <param name="touchPosition">Touch position.</param>
/// <param name="topViewCurrentFrame">Top view's current frame.</param>
public override bool CanStartSliding(CGPoint touchPosition, CGRect topViewCurrentFrame)
{
// touchPosition is in Screen coordinate.
nfloat offset = 0.0f;
touchPosition.Y += offset;
if (!IsVisible)
{
return(touchPosition.Y >= (View.Bounds.Height - EdgeTolerance) && touchPosition.Y <= View.Bounds.Height);
}
return(topViewCurrentFrame.Contains(touchPosition));
}
public override void MouseUp(NSEvent theEvent)
{
CGPoint location = theEvent.LocationInWindow;
CGRect frame = ExpiredInfoView.Frame;
bool isInFrame = frame.Contains(location);
if (IsExpired && isInFrame)
{
TitleInfoClick(null);
return;
}
base.MouseUp(theEvent);
}
public override bool TryGetLocalCoordinate(CGPoint hostCoordinate, out CGPoint localCoordinate)
{
localCoordinate = CGPoint.Empty;
if (!appBounds.Contains(hostCoordinate))
{
return(false);
}
localCoordinate.X = (hostCoordinate.X - appBounds.X) * scale;
localCoordinate.Y = (hostCoordinate.Y - appBounds.Y) * scale;
return(true);
}
public static UIColor ColorAtPixel(CGPoint point, UIImage image)
{
CGRect rect = new CGRect(0, 0, image.Size.Width, image.Size.Height);
// CancelIf pointIs outside Image coordinates
if (!rect.Contains(point))
{
return(null);
}
// Create a 1x1 pixel byte array and bitmap context to draw the pixelInto.
// Reference: http://stackoverflow.com/questions/1042830/retrieving-a-pixel-alpha-value-for-a-uiImage
int pointX = Convert.ToInt16(Math.Truncate(point.X));
int pointY = Convert.ToInt16(Math.Truncate(point.Y));
CGImage cgimage = image.CGImage;
int width = Convert.ToInt16(image.Size.Width);
int height = Convert.ToInt16(image.Size.Height);
CGColorSpace colorSpace = CGColorSpace.CreateDeviceRGB();
int bytesPerPixel = 4;
int bytesPerRow = bytesPerPixel * 1;
int bitsPerComponent = 8;
byte [] pixelData = { 0, 0, 0, 0 };
CGContext context = new CGBitmapContext(pixelData,
1,
1,
bitsPerComponent,
bytesPerRow,
colorSpace,
CGImageAlphaInfo.PremultipliedLast /*| CGBitmapFlags.ByteOrder32Big*/);
// colorSpace.Dispose ();
context.SetFillColorSpace(colorSpace); // CGColorSpaceRelease(colorSpace); //TODO Not Sure
context.SetBlendMode(CGBlendMode.Copy);
// Draw the pixel we areInterestedIn onto the bitmap context
context.TranslateCTM(-pointX, pointY - (nfloat)height);
context.DrawImage(new CGRect(0.0f, 0.0f, (nfloat)width, (nfloat)height), image.CGImage);
context.Dispose(); // CGContextRelease(context); //TODO Not Sure
// Convert color values [0..255] to floats [0.0..1.0]
nfloat red = (nfloat)pixelData [0] / 255.0f;
nfloat green = (nfloat)pixelData [1] / 255.0f;
nfloat blue = (nfloat)pixelData [2] / 255.0f;
nfloat alpha = (nfloat)pixelData [3] / 255.0f;
return(UIColor.FromRGBA(red, green, blue, alpha));
}
private int GetCharacterIndexAtPoint(Point point)
{
if (!_drawRect.Contains(point))
{
return(-1);
}
// Find the tapped character's index
var partialFraction = (nfloat)0;
var pointInTextContainer = new CGPoint(point.X - _drawRect.X, point.Y - _drawRect.Y);
#pragma warning disable CS0618 // Type or member is obsolete (For VS2017 compatibility)
var characterIndex = (int)_layoutManager.CharacterIndexForPoint(pointInTextContainer, _layoutManager.TextContainers.FirstOrDefault(), ref partialFraction);
#pragma warning restore CS0618 // Type or member is obsolete
return(characterIndex);
}
public void HandleTapAtPoint(CGPoint point)
{
var bigCubeRect = new CGRect(70, 210, 180, 180);
CGRect scrollviewRect = ScrollableFrame;
if (bigCubeRect.Contains(point.X, point.Y))
{
HandleBigCubeTap();
}
else if (scrollviewRect.Contains(point.X, point.Y))
{
var adjustedX = point.X + scrollOffset.X;
int cubeIndex = (int)Math.Floor(adjustedX / LittleCubeWidth);
HandleLittleCubeTap(cubeIndex);
}
}
public override bool PointInside(CGPoint point, UIEvent uievent)
{
CGRect rect = this.Bounds;
var isInside = rect.Contains(point);
if (!isInside)
{
foreach (UIView view in this.Subviews)
{
isInside = view.Frame.Contains(point);
if (isInside)
{
break;
}
}
}
return(isInside);
}
private AvailableVehicle[] Clusterize(AvailableVehicle[] vehicles)
{
// Divide the map in 25 cells (5*5)
const int numberOfRows = 5;
const int numberOfColumns = 5;
// Maximum number of vehicles in a cell before we start displaying a cluster
const int cellThreshold = 1;
var result = new List <AvailableVehicle>();
var bounds = Bounds;
var clusterWidth = bounds.Width / numberOfColumns;
var clusterHeight = bounds.Height / numberOfRows;
var list = new List <AvailableVehicle>(vehicles);
for (var rowIndex = 0; rowIndex < numberOfRows; rowIndex++)
{
for (var colIndex = 0; colIndex < numberOfColumns; colIndex++)
{
var rect = new CGRect(Bounds.X + colIndex * clusterWidth, Bounds.Y + rowIndex * clusterHeight, clusterWidth, clusterHeight);
var vehiclesInRect = list.Where(v => rect.Contains(ConvertCoordinate(new CLLocationCoordinate2D(v.Latitude, v.Longitude), this))).ToArray();
if (vehiclesInRect.Length > cellThreshold)
{
var clusterBuilder = new VehicleClusterBuilder();
foreach (var v in vehiclesInRect)
{
clusterBuilder.Add(v);
}
result.Add(clusterBuilder.Build());
}
else
{
result.AddRange(vehiclesInRect);
}
foreach (var v in vehiclesInRect)
{
list.Remove(v);
}
}
}
return(result.ToArray());
}
public override bool PointInside(CGPoint point, UIEvent uievent)
{
CGRect rect = Bounds;
bool isInside = rect.Contains(point);
if (!isInside)
{
foreach (UIView view in Subviews)
{
isInside = view.Frame.Contains(point);
if (isInside)
{
//Aktion stehen die ausgeführt wird
break;
}
}
}
return(isInside);
}
public override void RenderPointLabels (TKChartSeries series, CGRect bounds, CGContext ctx)
{
if (labelLayer != null) {
labelLayer.RemoveFromSuperLayer ();
}
for (int i = 0; i < series.Items.Length; i++) {
TKChartData dataPoint = (TKChartData)series.Items [i];
CGPoint location = base.LocationForDataPoint (dataPoint, series, bounds);
if (!bounds.Contains(location)) {
continue;
}
TKChartPointLabel label = this.LabelForDataPoint (dataPoint, series, (uint)i);
CGRect labelRect;
TKChartPointLabelStyle labelStyle = series.Style.PointLabelStyle;
if (this.isSelectedPoint) {
labelRect = new CGRect ((float)(location.X - 17.5), (float)(location.Y - 10 - 2.5 * Math.Abs (labelStyle.LabelOffset.Vertical)), 35, 30);
if (labelRect.Y < bounds.Y) {
this.labelLayer.IsOutsideBounds = true;
labelRect.Y = (float)(location.Y + 10 + 2.5 * Math.Abs (labelStyle.LabelOffset.Vertical) - labelRect.Size.Height);
} else {
this.labelLayer.IsOutsideBounds = false;
}
this.labelLayer.Frame = labelRect;
this.Render.AddSublayer (this.labelLayer);
this.labelLayer.SetNeedsDisplay ();
} else {
CGSize labelSize = label.SizeThatFits (bounds.Size);
labelRect = new CGRect ((float)(location.X - labelSize.Width / 2.0 + labelStyle.LabelOffset.Horizontal),
(float)(location.Y - labelSize.Height / 2.0 + labelStyle.LabelOffset.Vertical), labelSize.Width, labelSize.Height);
if (labelRect.Y < this.Render.Bounds.Y) {
labelRect.Y = (float)(location.Y - labelSize.Height / 2.0 + Math.Abs (labelStyle.LabelOffset.Vertical));
}
label.DrawInContext (ctx, labelRect, new TKChartVisualPoint(new PointF(0, 0)), UIColor.White);
}
}
}
public override UICollectionViewLayoutAttributes[] LayoutAttributesForElementsInRect(CGRect rect)
{
var allAttributes = new List <UICollectionViewLayoutAttributes>();
foreach (var cellLayoutInfo in (_layoutInfos?.Values).Safe())
{
foreach (var layoutAttributes in cellLayoutInfo.Values)
{
// Alias to avoid paying the price of interop twice.
var frame = layoutAttributes.Frame;
if (rect.Contains(frame) ||
rect.IntersectsWith(frame))
{
allAttributes.Add(layoutAttributes);
}
}
}
return(allAttributes.ToArray());
}
public override void TouchesMoved(NSSet touches, UIEvent evt)
{
base.TouchesMoved(touches, evt);
var touch = touches.AnyObject as UITouch;
if (touch != null)
{
endPoint = touch.LocationInView(this);
if (!currentFrame.Contains(this.endPoint))
{
return;
}
StoreEndCoordinate();
swiped = true;
co_ordinates.Add(new ScratchedPoints {
startPoint = startPoint, endPoint = endPoint
});
startPoint = endPoint;
SetNeedsDisplay();
}
}
void CellTapped(UITapGestureRecognizer tapRecognizer)
{
var point = tapRecognizer.LocationInView(this);
var totalWidth = Columns * 75 + (Columns - 1) * 4;
var startX = (Bounds.Size.Width - totalWidth) / 2;
var frame = new CGRect(startX, 2, 75, 75);
for (int i = 0; i < RowAssets.Count; ++i)
{
if (frame.Contains(point))
{
ELCAsset asset = RowAssets[i];
asset.Selected = !asset.Selected;
var overlayView = OverlayViewArray[i];
overlayView.Hidden = !asset.Selected;
break;
}
var x = frame.X + frame.Width + 4;
frame = new CGRect(x, frame.Y, frame.Width, frame.Height);
}
}
protected virtual void CenterViewInScroll(UIView viewToCenter, UIScrollView scrollView, nfloat keyboardHeight)
{
var contentInsets = new UIEdgeInsets(0.0f, 0.0f, keyboardHeight, 0.0f);
scrollView.ContentInset = contentInsets;
scrollView.ScrollIndicatorInsets = contentInsets;
// Position of the active field relative isnside the scroll view
// If activeField is hidden by keyboard, scroll it so it's visible
CGRect viewRectAboveKeyboard = new CGRect(this.View.Frame.Location, new CGSize(this.View.Frame.Width, this.View.Frame.Size.Height - keyboardHeight));
CGRect activeFieldAbsoluteFrame = ViewToCenterOnKeyboardShown.Superview.ConvertRectToView(ViewToCenterOnKeyboardShown.Frame, this.View);
// activeFieldAbsoluteFrame is relative to this.View so does not include any scrollView.ContentOffset
// Check if the activeField will be partially or entirely covered by the keyboard
if (!viewRectAboveKeyboard.Contains(activeFieldAbsoluteFrame))
{
// Scroll to the activeField Y position + activeField.Height + current scrollView.ContentOffset.Y - the keyboard Height
CGPoint scrollPoint = new CGPoint(0.0f, activeFieldAbsoluteFrame.Location.Y + activeFieldAbsoluteFrame.Height + scrollView.ContentOffset.Y - viewRectAboveKeyboard.Height + VerticalSpacingFromKeyboard);
scrollView.SetContentOffset(scrollPoint, true);
}
}
private void tapAction()
{
if (punchTextView.IsFirstResponder)
{
punchTextView.ResignFirstResponder();
}
else
{
CGRect deletionAreaRect = new CGRect(0, this.Frame.Height / 2 - 25, 44, 50);
CGPoint point = tap.LocationInView(this);
if (deletionAreaRect.Contains(point))
{
int buttonClicked = -1;
UIAlertView alert1 = new UIAlertView(@"Alert", @"Are you sure you want to delete?", null, NSBundle.MainBundle.LocalizedString("Cancel", "Cancel"), NSBundle.MainBundle.LocalizedString("OK", "OK"));
alert1.Show();
alert1.Clicked += (sender, buttonArgs) => {
buttonClicked = (int)buttonArgs.ButtonIndex;
};
//Wait for a button press.
while (buttonClicked == -1)
{
NSRunLoop.Current.RunUntil(NSDate.FromTimeIntervalSinceNow(0.5));
}
if (buttonClicked == 1)
{
this.punchItems.Remove(this.punch);
this.optionsTableView.ReloadData();
IsPunchValueChanged = true;
}
}
}
}
private void ScrollViewToShowCurrentResponder(NSNotification notification)
{
var keyboardInfoValue = notification.UserInfo[UIKeyboard.FrameEndUserInfoKey] as NSValue;
CGRect rawFrame = keyboardInfoValue.CGRectValue;
CGRect keyboardFrame = View.ConvertRectFromView(rawFrame, null);
nfloat keyboardHeight = keyboardFrame.Height;
UIEdgeInsets contentInsets = new UIEdgeInsets(0, 0, keyboardHeight, 0);
ContentScrollView.ContentInset = contentInsets;
ContentScrollView.ScrollIndicatorInsets = contentInsets;
CGRect aRect = View.Frame;
aRect.Size = new CGSize(aRect.Size.Width, keyboardHeight);
var responder = View.GetFirstResponder();
if (!aRect.Contains(responder.Frame))
{
PointF scrollPoint = new PointF(0.0f, (float)responder.Frame.Y - (float)keyboardHeight);
ContentScrollView.SetContentOffset(scrollPoint, true);
}
}
/// <summary>
/// Determines whether this instance can start sliding given the touch position and the
/// current location/size of the top view.
/// Note that touchPosition is in Screen coordinate.
/// </summary>
/// <returns>true</returns>
/// <c>false</c>
/// <param name="touchPosition">Touch position.</param>
/// <param name="topViewCurrentFrame">Top view's current frame.</param>
public override bool CanStartSliding(CGPoint touchPosition, CGRect topViewCurrentFrame)
{
if (!IsVisible)
{
return (touchPosition.X >= View.Bounds.Size.Width - EdgeTolerance && touchPosition.X <= View.Bounds.Size.Width);
}
else
{
return topViewCurrentFrame.Contains (touchPosition);
}
}
/// <summary>
/// Determines whether this instance can start sliding given the touch position and the
/// current location/size of the top view.
/// Note that touchPosition is in Screen coordinate.
/// </summary>
/// <returns>true</returns>
/// <c>false</c>
/// <param name="touchPosition">Touch position.</param>
/// <param name="topViewCurrentFrame">Top view's current frame.</param>
public override bool CanStartSliding(CGPoint touchPosition, CGRect topViewCurrentFrame)
{
if (!IsVisible)
{
return (touchPosition.X >= 0.0f && touchPosition.X <= EdgeTolerance);
}
else
{
return topViewCurrentFrame.Contains (touchPosition);
}
}
bool TouchIsInRect (UITouch touch, CGRect rect)
{
rect = CGAffineTransform.CGRectApplyAffineTransform (rect, CGAffineTransform.MakeScale (Bounds.Width, Bounds.Height));
return rect.Contains (touch.LocationInView (this));
}
/// <summary>
/// Determines whether this instance can start sliding given the touch position and the
/// current location/size of the top view.
/// Note that touchPosition is in Screen coordinate.
/// </summary>
/// <returns>true</returns>
/// <c>false</c>
/// <param name="touchPosition">Touch position.</param>
/// <param name="topViewCurrentFrame">Top view's current frame.</param>
public override bool CanStartSliding(CGPoint touchPosition, CGRect topViewCurrentFrame)
{
// touchPosition is in Screen coordinate.
float offset = 0;
touchPosition.Y += offset;
if (!IsVisible)
{
return (touchPosition.Y >= (View.Bounds.Height - EdgeTolerance) && touchPosition.Y <= View.Bounds.Height);
}
else
{
return topViewCurrentFrame.Contains (touchPosition);
}
}
void ResizeRegionOfInterestWithGestureRecognizer (UIPanGestureRecognizer pan)
{
var touchLocation = pan.LocationInView (pan.View);
var oldRegionOfInterest = RegionOfInterest;
switch (pan.State) {
case UIGestureRecognizerState.Began:
// When the gesture begins, save the corner that is closes to
// the resize region of interest gesture recognizer's touch location.
currentControlCorner = CornerOfRect (oldRegionOfInterest, touchLocation);
break;
case UIGestureRecognizerState.Changed:
var newRegionOfInterest = oldRegionOfInterest;
switch (currentControlCorner) {
case ControlCorner.None:
// Update the new region of interest with the gesture recognizer's translation.
var translation = pan.TranslationInView (pan.View);
// Move the region of interest with the gesture recognizer's translation.
if (RegionOfInterest.Contains (touchLocation)) {
newRegionOfInterest.X += translation.X;
newRegionOfInterest.Y += translation.Y;
}
// If the touch location goes outside the preview layer,
// we will only translate the region of interest in the
// plane that is not out of bounds.
var normalizedRect = new CGRect (0, 0, 1, 1);
if (!normalizedRect.Contains (VideoPreviewLayer.PointForCaptureDevicePointOfInterest (touchLocation))) {
if (touchLocation.X < RegionOfInterest.GetMinX () || touchLocation.X > RegionOfInterest.GetMaxX ()) {
newRegionOfInterest.Y += translation.Y;
} else if (touchLocation.Y < RegionOfInterest.GetMinY () || touchLocation.Y > RegionOfInterest.GetMaxY ()) {
newRegionOfInterest.X += translation.X;
}
}
// Set the translation to be zero so that the new gesture
// recognizer's translation is in respect to the region of
// interest's new position.
pan.SetTranslation (CGPoint.Empty, pan.View);
break;
case ControlCorner.TopLeft:
newRegionOfInterest = new CGRect (touchLocation.X, touchLocation.Y,
oldRegionOfInterest.Width + oldRegionOfInterest.X - touchLocation.X,
oldRegionOfInterest.Height + oldRegionOfInterest.Y - touchLocation.Y);
break;
case ControlCorner.TopRight:
newRegionOfInterest = new CGRect (newRegionOfInterest.X,
touchLocation.Y,
touchLocation.X - newRegionOfInterest.X,
oldRegionOfInterest.Height + newRegionOfInterest.Y - touchLocation.Y);
break;
case ControlCorner.BottomLeft:
newRegionOfInterest = new CGRect (touchLocation.X, oldRegionOfInterest.Y,
oldRegionOfInterest.Width + oldRegionOfInterest.X - touchLocation.X,
touchLocation.Y - oldRegionOfInterest.Y);
break;
case ControlCorner.BottomRight:
newRegionOfInterest = new CGRect (oldRegionOfInterest.X, oldRegionOfInterest.Y,
touchLocation.X - oldRegionOfInterest.X,
touchLocation.Y - oldRegionOfInterest.Y);
break;
}
// Update the region of intresest with a valid CGRect.
SetRegionOfInterestWithProposedRegionOfInterest (newRegionOfInterest);
break;
case UIGestureRecognizerState.Ended:
RegionOfInterestDidChange?.Invoke (this, EventArgs.Empty);
// Reset the current corner reference to none now that the resize.
// gesture recognizer has ended.
currentControlCorner = ControlCorner.None;
break;
default:
return;
}
}
public void TappedTickerView(UITapGestureRecognizer recog)
{
if (tapHandler==null)
return;
CGPoint point = recog.LocationInView(this);
point.X = point.X + VisibleContentRect.X;
UIView tappedView = null;
Console.WriteLine("point is " + point.ToString());
foreach (UIView v in scrollView.Subviews)
{
if (!(v is UIImageView))
{
Console.WriteLine("v with tag {0} and frame {1}",v.Tag,v.Frame.ToString());
tempFrame = v.Frame;
tempFrame.Height = Bounds.Height;
if (tempFrame.Contains(point))
{
tappedView = v;
break;
}
}
}
if (tapHandler!=null && tappedView!=null)
tapHandler(tappedView);
}
void CellTapped(UITapGestureRecognizer tapRecognizer)
{
var point = tapRecognizer.LocationInView (this);
var totalWidth = Columns * 75 + (Columns - 1) * 4;
var startX = (Bounds.Size.Width - totalWidth) / 2;
var frame = new CGRect (startX, 2, 75, 75);
for (int i = 0; i < RowAssets.Count; ++i) {
if (frame.Contains (point)) {
ELCAsset asset = RowAssets [i];
asset.Selected = !asset.Selected;
var overlayView = OverlayViewArray [i];
overlayView.Hidden = !asset.Selected;
break;
}
var x = frame.X + frame.Width + 4;
frame = new CGRect (x, frame.Y, frame.Width, frame.Height);
}
}
