/// <summary>
/// Gets the touched view.
/// </summary>
/// <param name="viewGroup">The view group.</param>
/// <param name="point">The point.</param>
/// <param name="offset">The offset.</param>
/// <returns>Tuple<View, PointF>.</returns>
public static Tuple<View, PointF> GetTouchedView(this ViewGroup viewGroup, PointF point, PointF offset = null)
{
offset = offset ?? new PointF();
for (var n = 0; n < viewGroup.ChildCount; n++)
{
var view = viewGroup.GetChildAt(n);
if (view.IsHit(point))
{
var vg = view as ViewGroup;
if (vg != null)
{
offset = new PointF(offset.X + vg.Left, offset.Y + vg.Top);
var p = new PointF(point.X - vg.Left, point.Y - vg.Top);
return GetTouchedView(vg, p, offset);
}
else if (string.IsNullOrWhiteSpace(view.ContentDescription))
{
return new Tuple<View, PointF>(viewGroup, offset);
}
return new Tuple<View, PointF>(view, offset);
}
}
return null;
}
public override void Draw(Canvas canvas)
{
if (_placeholderBounds == null)
{
var centerPoint = new PointF(canvas.Width / 2f, canvas.Height / 2f);
var width = _context.DpToPx(_size);
var sizeInPixels = new SizeF(width, width);
var x = centerPoint.X - (sizeInPixels.Width / 2f);
var y = centerPoint.Y - (sizeInPixels.Height / 2f);
_placeholderBounds = new RectF(
x,
y,
x + sizeInPixels.Width,
y + sizeInPixels.Height);
SetAvatarTextValues();
}
canvas.DrawCircle(
canvas.Width / 2f,
canvas.Height / 2f,
_placeholderBounds.Width() / 2f,
_backgroundPaint);
canvas.DrawText(_avatarText, _textStartXPoint, _textStartYPoint, _textPaint);
}
bool ProcessTouchMove(APointF point)
{
if (_contentView == null || !TouchInsideContent(point))
{
return(false);
}
if (!_isSwiping && _swipeThreshold == 0)
{
_swipeDirection = SwipeDirectionHelper.GetSwipeDirection(new Point(_initialPoint.X, _initialPoint.Y), new Point(point.X, point.Y));
RaiseSwipeStarted();
_isSwiping = true;
}
if (!ValidateSwipeDirection())
{
return(false);
}
_swipeOffset = GetSwipeOffset(_initialPoint, point);
UpdateSwipeItems();
if (Math.Abs(_swipeOffset) > double.Epsilon)
{
Swipe();
}
else
{
ResetSwipe();
}
RaiseSwipeChanging();
return(true);
}
void ProcessTouchSwipeItems(APointF point)
{
var swipeItems = GetSwipeItemsByDirection();
if (swipeItems == null || _actionView == null)
{
return;
}
for (int i = 0; i < _actionView.ChildCount; i++)
{
var swipeButton = _actionView.GetChildAt(i);
var swipeItemX = swipeButton.Left / _density;
var swipeItemY = swipeButton.Top / _density;
var swipeItemHeight = swipeButton.Height / _density;
var swipeItemWidth = swipeButton.Width / _density;
if (TouchInsideContent(swipeItemX, swipeItemY, swipeItemWidth, swipeItemHeight, point.X, point.Y))
{
var swipeItem = swipeItems[i];
ExecuteSwipeItem(swipeItem);
if (swipeItems.SwipeBehaviorOnInvoked != SwipeBehaviorOnInvoked.RemainOpen)
{
ResetSwipe();
}
break;
}
}
}
bool ProcessTouchUp(APointF point)
{
_isTouchDown = false;
if (!TouchInsideContent(point))
{
ProcessTouchSwipeItems(point);
}
if (!_isSwiping)
{
return(false);
}
_isSwiping = false;
RaiseSwipeEnded();
if (!ValidateSwipeDirection())
{
return(false);
}
ValidateSwipeThreshold();
return(false);
}
public override bool OnInterceptTouchEvent(MotionEvent e)
{
switch (e.Action)
{
case MotionEventActions.Down:
_downX = e.RawX;
_downY = e.RawY;
_initialPoint = new APointF(e.GetX() / _density, e.GetY() / _density);
break;
case MotionEventActions.Move:
float x = Math.Abs((_downX - e.GetX()) / _density);
float y = Math.Abs((_downY - e.GetY()) / _density);
if (x > SwipeMinimumDelta || y > SwipeMinimumDelta)
{
ProcessSwipingInteractions(e);
}
break;
case MotionEventActions.Cancel:
case MotionEventActions.Up:
ProcessSwipingInteractions(e);
break;
}
return(false);
}
public override bool OnTouchEvent(MotionEvent e)
{
float x;
if (e.PointerCount == 1)
{
x = e.GetX();
if (x < _bounds.Left)
x = _bounds.Left;
if (x > _bounds.Right)
x = _bounds.Right;
_sliderPositionRaw = new PointF(x, _bounds.CenterY());
_isActive = e.Action == MotionEventActions.Down || e.Action == MotionEventActions.Move;
var scaleX = _bounds.Width() / 2f;
x = (x - scaleX) * 100f / scaleX;
}
else if (e.PointerCount == 2)
{
x = (e.GetX(0) + e.GetX(1)) / 2f;
if (x < _bounds.Left)
x = _bounds.Left;
if (x > _bounds.Right)
x = _bounds.Right;
_sliderPositionRaw = new PointF(x, _bounds.CenterY());
_isActive = e.Action == MotionEventActions.Down || e.Action == MotionEventActions.Move;
var scaleX = _bounds.Width() / 2f;
x = (x - scaleX) * 10f / scaleX;
}
else
{
_isActive = false;
return true;
}
switch (e.Action)
{
case MotionEventActions.Down:
OnSliderStart(x);
break;
case MotionEventActions.Up:
OnSliderStop();
break;
case MotionEventActions.Move:
OnSliderMove(x);
break;
}
Invalidate();
return true;
}
/// <summary>
/// Determines whether the specified point is hit.
/// </summary>
/// <param name="view">The view.</param>
/// <param name="point">The point.</param>
/// <returns><c>true</c> if the specified point is hit; otherwise, <c>false</c>.</returns>
public static bool IsHit(this Android.Views.View view, PointF point)
{
var r = new Rect();
view.GetHitRect(r);
var touch = new Rect((int)point.X, (int)point.Y, (int)point.X, (int)point.Y);
return r.Intersect(touch);
}
bool TouchInsideContent(APointF point)
{
if (_contentView == null)
{
return(false);
}
bool touchContent = TouchInsideContent(_contentView.Left + _contentView.TranslationX, _contentView.Top + _contentView.TranslationY, _contentView.Width, _contentView.Height, _context.ToPixels(point.X), _context.ToPixels(point.Y));
return(touchContent);
}
public PointF TransformPoint(PointF p)
{
var px = new ag.PointF[] { p.ToAndroid() };
#if TODO
this.Control.TransformPoints(px);
#else
throw new NotImplementedException();
#endif
return(px[0].ToEto());
}
internal static ag.PointF[] ToAndroid(this PointF[] points)
{
var result =
new ag.PointF[points.Length];
for (var i = 0;
i < points.Length;
++i)
{
var p = points[i];
result[i] =
new ag.PointF(p.X, p.Y);
}
return(result);
}
bool ProcessTouchDown(APointF point)
{
if (_isSwiping || _isTouchDown || _contentView == null)
{
return(false);
}
if (TouchInsideContent(point))
{
ResetSwipe();
}
_initialPoint = point;
_isTouchDown = true;
return(true);
}
float GetSwipeOffset(APointF initialPoint, APointF endPoint)
{
float swipeOffset = 0;
switch (_swipeDirection)
{
case SwipeDirection.Left:
case SwipeDirection.Right:
swipeOffset = endPoint.X - initialPoint.X;
break;
case SwipeDirection.Up:
case SwipeDirection.Down:
swipeOffset = endPoint.Y - initialPoint.Y;
break;
}
return(swipeOffset);
}
bool HandleTouchInteractions(GestureStatus status, APointF point)
{
switch (status)
{
case GestureStatus.Started:
return(!ProcessTouchDown(point));
case GestureStatus.Running:
return(!ProcessTouchMove(point));
case GestureStatus.Completed:
ProcessTouchUp(point);
break;
}
_isTouchDown = false;
return(true);
}
public static double LineToCursorDistance(Point cursor, Point p1, Point p2)
{
PointF dichtbij;
float dx = p2.X - p1.X;
float dy = p2.Y - p1.Y;
//als de lijn een punt is
if ((dx == 0) && (dy == 0))
{
dichtbij = new PointF (p1.X, p1.Y);
dx = cursor.X - dichtbij.X;
dy = cursor.Y - dichtbij.Y;
return Math.Sqrt(dx * dx + dy * dy);
}
float t = ((cursor.X - p1.X) * dx + (cursor.Y - p1.Y) * dy)
/ (dx * dx + dy * dy);
if (t < 0)
{
dichtbij = new PointF (p1.X, p1.Y);
dx = cursor.X - dichtbij.X;
dy = cursor.Y - dichtbij.Y;
}
else if (t > 1)
{
dichtbij = new PointF (p2.X, p2.Y);
dx = cursor.X - dichtbij.X;
dy = cursor.Y - dichtbij.Y;
}
else
{
dichtbij = new PointF(p1.X + t * dx, p1.Y + t * dy);
dx = cursor.X - dichtbij.X;
dy = cursor.Y - dichtbij.Y;
}
double a = Math.Sqrt(dx * dx + dy * dy);
return a;
}
/// <summary>
/// Method to update our sliders
/// </summary>
/// <param name="events"></param>
public void update(MotionEvent events)
{
switch (events.Action & events.ActionMasked)
{
case MotionEventActions.Down:
//save the ID of the active pointer
mActivePointerId = events.PointerCount - 1;
//remember where we started
mLastTouchY = events.GetY(mActivePointerId);
break;
case MotionEventActions.Move:
//only get the vertical movement
float y = events.GetY(mActivePointerId);
//set touchingpoint
_touchingPoint.Y = (int)y;
//remember this touch point for the next move event
mLastTouchY = y;
//invalidate to request a redraw
Invalidate();
break;
case MotionEventActions.Up:
//reset our touching point on release
_touchingPoint = new PointF(INIT_X, INIT_Y);
mLastTouchY = 0;
release = true;
break;
}//end switch
//set the touching points to min/max when they go out of bounds
if (_touchingPoint.Y < 13)
_touchingPoint.Y = 13;
if (_touchingPoint.Y > 189)
_touchingPoint.Y = 189;
//determine the percentage of power forward/backward
//-83 < 0 > 83
_power = Convert.ToInt32((_touchingPoint.Y - 13) - 88);
//make sure we can return a power value for the engine between 100 and - 100
//100 being max power forwards, -100 max power reverse.
if (_power < -1)
{
_power = Convert.ToInt32((Math.Abs(_power / 88)) * 100);
}//end if
else if (_power > 1)
{
_power = Convert.ToInt32((_power / 88) * 100);
_power *= -1;
}//end else if
else
_power = 0;
if (_power > 100)
_power = 100;
if (_power < -100)
_power = -100;
//set the power value in our singleton class so we can send it to CARMEN
//Make sure we dont update too often, so we dont lock the thread
if (DateTime.Now - LastUpdate > interval)
{
LastUpdate = DateTime.Now;
if (this.Id == Resource.Id.sliderControls0)
Send_Singleton.Instance.left = (int)_power;
else if (this.Id == Resource.Id.sliderControls1)
Send_Singleton.Instance.right = (int)_power;
}//end if
}
/// <summary>
/// Updates the current state with the given event.
/// </summary>
/// <param name="curr">The current event.</param>
protected override void UpdateStateByEvent (MotionEvent curr)
{
base.UpdateStateByEvent (curr);
MotionEvent prev = _previousEvent;
// focus internal
_currFocusInternal = DetermineFocalPoint (curr);
_prevFocusInternal = DetermineFocalPoint (prev);
// focus external
// - preven skipping of focus delta when a finger is added or removed.
bool skipNextMoveEvent = prev.PointerCount != curr.PointerCount;
_focusDeltaExternal = skipNextMoveEvent ? FocusDeltaZero : new PointF (_currFocusInternal.X - _prevFocusInternal.X,
_currFocusInternal.Y - _prevFocusInternal.Y);
// - don't directly use _focusInternal (or skipping will occur). Add
// unskipped delta values to _focusInternal instead.
_focusExternal.X += _focusDeltaExternal.X;
_focusExternal.Y += _focusDeltaExternal.Y;
}
bool ProcessSwipingInteractions(MotionEvent e)
{
bool?handled = true;
var point = new APointF(e.GetX() / _density, e.GetY() / _density);
switch (e.Action)
{
case MotionEventActions.Down:
_downX = e.RawX;
_downY = e.RawY;
handled = HandleTouchInteractions(GestureStatus.Started, point);
if (handled == true)
{
Parent.RequestDisallowInterceptTouchEvent(true);
}
break;
case MotionEventActions.Up:
handled = HandleTouchInteractions(GestureStatus.Completed, point);
if (Parent == null)
{
break;
}
Parent.RequestDisallowInterceptTouchEvent(false);
break;
case MotionEventActions.Move:
handled = HandleTouchInteractions(GestureStatus.Running, point);
if (handled == true || Parent == null)
{
break;
}
Parent.RequestDisallowInterceptTouchEvent(true);
break;
case MotionEventActions.Cancel:
handled = HandleTouchInteractions(GestureStatus.Canceled, point);
if (Parent == null)
{
break;
}
Parent.RequestDisallowInterceptTouchEvent(false);
break;
}
if (handled.HasValue)
{
return(!handled.Value);
}
return(false);
}
public override bool OnInterceptTouchEvent(MotionEvent ev)
{
if (_mTouchInterceptionListener == null)
{
return false;
}
// In here, we must initialize touch state variables
// and ask if we should intercept this event.
// Whether we should intercept or not is kept for the later event handling.
switch (ev.ActionMasked)
{
case MotionEventActions.Down:
_mInitialPoint = new PointF(ev.GetX(), ev.GetY());
_mPendingDownMotionEvent = MotionEvent.ObtainNoHistory(ev);
_mDownMotionEventPended = true;
_mIntercepting = _mTouchInterceptionListener.ShouldInterceptTouchEvent(ev, false, 0, 0);
_mBeganFromDownMotionEvent = _mIntercepting;
_mChildrenEventsCanceled = false;
return _mIntercepting;
case MotionEventActions.Move:
// ACTION_MOVE will be passed suddenly, so initialize to avoid exception.
if (_mInitialPoint == null)
{
_mInitialPoint = new PointF(ev.GetX(), ev.GetY());
}
// diffX and diffY are the origin of the motion, and should be difference
// from the position of the ACTION_DOWN event occurred.
float diffX = ev.GetX() - _mInitialPoint.X;
float diffY = ev.GetY() - _mInitialPoint.Y;
_mIntercepting = _mTouchInterceptionListener.ShouldInterceptTouchEvent(ev, true, diffX, diffY);
return _mIntercepting;
}
return false;
}
void UpdatePathArrow()
{
if (_pathArrow == null)
_pathArrow = new global::Android.Graphics.Path ();
else
_pathArrow.Reset ();
// Create arrow
// We have a direction, so draw an arrow
var direction = 180.0 - ((DirectionArrow)Element).Direction;
if (direction < 0)
direction += 360.0;
direction = direction % 360.0;
double rad1 = direction / 180.0 * Math.PI;
double rad2 = (direction + 180.0 + 30.0) / 180.0 * Math.PI;
double rad3 = (direction + 180.0 - 30.0) / 180.0 * Math.PI;
double rad4 = (direction + 180.0) / 180.0 * Math.PI;
PointF p1 = new PointF ((float)(_centerX + _size * Math.Sin (rad1)), (float)(_centerY + _size * Math.Cos (rad1)));
PointF p2 = new PointF ((float)(_centerX + _size * Math.Sin (rad2)), (float)(_centerY + _size * Math.Cos (rad2)));
PointF p3 = new PointF ((float)(_centerX + _size * Math.Sin (rad3)), (float)(_centerY + _size * Math.Cos (rad3)));
PointF p4 = new PointF ((float)(_centerX + _sizeSmall * Math.Sin (rad4)), (float)(_centerY + _sizeSmall * Math.Cos (rad4)));
_pathArrow.MoveTo (p1.X, p1.Y);
_pathArrow.LineTo (p2.X, p2.Y);
_pathArrow.LineTo (p4.X, p4.Y);
_pathArrow.LineTo (p3.X, p3.Y);
_pathArrow.LineTo (p1.X, p1.Y);
}
//public float[] T = new float[2];
public Tuple2fT()
{
s = new PointF(0.0f, 0.0f);
}
protected override void Dispose(bool disposing)
{
if (_isDisposed)
{
return;
}
if (disposing)
{
if (Element != null)
{
Element.CloseRequested -= OnCloseRequested;
}
if (_detector != null)
{
_detector.Dispose();
_detector = null;
}
if (_scrollParent != null)
{
if (_scrollParent is ScrollView scrollView)
{
scrollView.Scrolled -= OnParentScrolled;
}
if (_scrollParent is ListView listView)
{
listView.Scrolled -= OnParentScrolled;
}
if (_scrollParent is Xamarin.Forms.CollectionView collectionView)
{
collectionView.Scrolled -= OnParentScrolled;
}
}
if (_contentView != null)
{
_contentView.RemoveFromParent();
_contentView.Dispose();
_contentView = null;
}
if (_actionView != null)
{
_actionView.RemoveFromParent();
_actionView.Dispose();
_actionView = null;
}
if (_initialPoint != null)
{
_initialPoint.Dispose();
_initialPoint = null;
}
}
_isDisposed = true;
base.Dispose(disposing);
}
public override void DrawMarker (PointF p0, Canvas p1)
{
float density = context.Resources.DisplayMetrics.Density / 1.5f;
Bitmap bitmap = BitmapFactory.DecodeResource (context.Resources, Resource.Drawable.pin);
p1.DrawBitmap(bitmap,(float)p0.X-(12*density),(float)p0.Y-(35*density),new Paint());
}
void MoveCropView( PointF delta )
{
// update the crop view by how much it should be moved
float xPos = CropView.GetX( ) + delta.X;
float yPos = CropView.GetY( ) + delta.Y;
// clamp to valid bounds
xPos = Math.Max( CropViewMinPos.X, Math.Min( xPos, CropViewMaxPos.X ) );
yPos = Math.Max( CropViewMinPos.Y, Math.Min( yPos, CropViewMaxPos.Y ) );
CropView.SetX( xPos );
CropView.SetY( yPos );
MaskLayer.Position = new PointF( CropView.GetX( ), CropView.GetY( ) );
}
void SetMode( CropMode mode )
{
if( mode == Mode )
{
throw new Exception( string.Format( "Crop Mode {0} requested, but already in that mode.", mode ) );
}
switch( mode )
{
case CropMode.Editing:
{
// If we're entering edit mode for the first time
if ( Mode == CropMode.None )
{
// Animate in the mask
SimpleAnimator_Float floatAnimator = new SimpleAnimator_Float( MaskLayer.Opacity, MaskFadeAmount, MaskFadeTime,
delegate( float percent, object value )
{
Rock.Mobile.Threading.Util.PerformOnUIThread( delegate
{
MaskLayer.Opacity = (float)value;
} );
},
null );
floatAnimator.Start( );
// turn on our cropper
CropView.Visibility = ViewStates.Visible;
// and set the source image to the scaled source.
ImageView.SetImageBitmap( ScaledSourceImage );
}
// else we're coming FROM Preview Mode, so we need to animate
else
{
Animating = true;
// setup the dimension changes
System.Drawing.SizeF startSize = new System.Drawing.SizeF( ImageView.Width, ImageView.Height );
System.Drawing.SizeF endSize = new System.Drawing.SizeF( CropView.Width, CropView.Height );
PointF startPos = new PointF( ImageView.GetX( ), ImageView.GetY( ) );
PointF endPos = new PointF( CropView.GetX( ), CropView.GetY( ) );
// now animate the cropped image up to its full size
AnimateImageView( ImageView, startPos, endPos, startSize, endSize, ImageAnimationTime,
delegate
{
ImageView.SetImageBitmap( null );
// release any cropped image we had.
if ( CroppedImage != null )
{
CroppedImage.Dispose( );
CroppedImage = null;
}
// release the scaled version if we had it
if ( ScaledCroppedImage != null )
{
ScaledCroppedImage.Dispose( );
ScaledCroppedImage = null;
}
ImageView.SetImageBitmap( ScaledSourceImage );
ImageView.LayoutParameters.Width = ScaledSourceImage.Width;
ImageView.LayoutParameters.Height = ScaledSourceImage.Height;
// center the image
ImageView.SetX( (ScreenSize.Width - ImageView.LayoutParameters.Width ) / 2 );
ImageView.SetY( (ScreenSize.Height - ImageView.LayoutParameters.Height ) / 2 );
MaskLayer.Visibility = ViewStates.Visible;
CropView.Visibility = ViewStates.Visible;
SimpleAnimator_Float floatAnimator = new SimpleAnimator_Float( MaskLayer.Opacity, MaskFadeAmount, MaskFadeTime,
delegate( float percent, object value )
{
Rock.Mobile.Threading.Util.PerformOnUIThread( delegate
{
MaskLayer.Opacity = (float)value;
CropView.Alpha = percent;
} );
},
// FINISHED MASK FADE-OUT
delegate
{
Rock.Mobile.Threading.Util.PerformOnUIThread( delegate
{
Animating = false;
});
});
floatAnimator.Start( );
} );
}
break;
}
case CropMode.Previewing:
{
// don't allow a state change while we're animating
Animating = true;
SimpleAnimator_Float floatAnimator = new SimpleAnimator_Float( MaskLayer.Opacity, 1.00f, MaskFadeTime,
delegate( float percent, object value )
{
Rock.Mobile.Threading.Util.PerformOnUIThread( delegate
{
MaskLayer.Opacity = (float)value;
CropView.Alpha = 1.0f - percent;
} );
},
// FINISHED MASK FADE-IN
delegate
{
Rock.Mobile.Threading.Util.PerformOnUIThread( delegate
{
// hide the mask and cropper
MaskLayer.Visibility = ViewStates.Gone;
CropView.Visibility = ViewStates.Gone;
// create the cropped image
CroppedImage = CropImage( SourceImage, new System.Drawing.RectangleF( CropView.GetX( ) - CropViewMinPos.X,
CropView.GetY( ) - CropViewMinPos.Y,
CropView.LayoutParameters.Width,
CropView.LayoutParameters.Height ) );
// create a scaled version of the cropped image
float scaledWidth = (float)CroppedImage.Width * (1.0f / ScreenToImageScalar);
float scaledHeight = (float)CroppedImage.Height * (1.0f / ScreenToImageScalar);
ScaledCroppedImage = Bitmap.CreateScaledBitmap( CroppedImage, (int)scaledWidth, (int)scaledHeight, false );
// set the scaled cropped image
ImageView.SetImageBitmap( null );
ImageView.SetImageBitmap( ScaledCroppedImage );
// start the scaled cropped image scaled down further to match its size within the full image.
ImageView.SetX( CropView.GetX( ) );
ImageView.SetY( CropView.GetY( ) );
ImageView.LayoutParameters.Width = CropView.Width;
ImageView.LayoutParameters.Height = CropView.Height;
// setup the dimension changes
System.Drawing.SizeF startSize = new System.Drawing.SizeF( ScaledCroppedImage.Width, ScaledCroppedImage.Height );
System.Drawing.SizeF endSize;
if( ScreenSize.Width < ScreenSize.Height )
{
endSize = new System.Drawing.SizeF( ScreenSize.Width, (float)System.Math.Ceiling( ScreenSize.Width * ( startSize.Width / startSize.Height ) ) );
}
else
{
endSize = new System.Drawing.SizeF( (float)System.Math.Ceiling( ScreenSize.Height * ( startSize.Height / startSize.Width ) ), ScreenSize.Height );
}
PointF startPos = new PointF( CropView.GetX( ), CropView.GetY( ) );
PointF endPos = new PointF( (ScreenSize.Width - endSize.Width) / 2, (ScreenSize.Height - endSize.Height) / 2 );
// now animate the cropped image up to its full size
AnimateImageView( ImageView, startPos, endPos, startSize, endSize, ImageAnimationTime,
delegate
{
Animating = false;
} );
} );
} );
floatAnimator.Start( );
break;
}
}
Mode = mode;
}
void AnimateImageView( View imageView, PointF startPos, PointF endPos, System.Drawing.SizeF startSize, System.Drawing.SizeF endSize, float duration, SimpleAnimator.AnimationComplete completeDelegate )
{
// calculate the deltas once before we start
float xDelta = endPos.X - startPos.X;
float yDelta = endPos.Y - startPos.Y;
float deltaWidth = endSize.Width - startSize.Width;
float deltaHeight = endSize.Height - startSize.Height;
// create an animator
SimpleAnimator_Float imageAnimator = new SimpleAnimator_Float( 0.00f, 1.00f, duration,
delegate( float percent, object value )
{
Rock.Mobile.Threading.Util.PerformOnUIThread( delegate
{
// each update, interpolate the deltas and apply
imageView.SetX( startPos.X + ( xDelta * percent ) );
imageView.SetY( startPos.Y + ( yDelta * percent ) );
imageView.LayoutParameters.Width = (int)( startSize.Width + ( deltaWidth * percent ) );
imageView.LayoutParameters.Height = (int)( startSize.Height + ( deltaHeight * percent ) );
// force the image to re-evaluate its size
imageView.RequestLayout( );
} );
},
//ANIMATION COMPLETE
delegate
{
if ( completeDelegate != null )
{
Rock.Mobile.Threading.Util.PerformOnUIThread( delegate
{
completeDelegate( );
} );
}
} );
imageAnimator.Start( );
}
public bool OnTouch( View v, MotionEvent e )
{
if ( Mode == CropMode.Editing )
{
switch ( e.Action )
{
case MotionEventActions.Down:
{
// stamp our position so we can update the crop view
LastTapPos = new PointF( e.GetX( ), e.GetY( ) );
break;
}
case MotionEventActions.Move:
{
// adjust by the amount moved
PointF delta = new PointF( e.GetX( ) - LastTapPos.X, e.GetY( ) - LastTapPos.Y );
MoveCropView( delta );
LastTapPos = new PointF( e.GetX( ), e.GetY( ) );
break;
}
case MotionEventActions.Up:
{
break;
}
}
}
return true;
}
public override View OnCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState)
{
if (container == null)
{
// Currently in a layout without a container, so no reason to create our view.
return null;
}
Point displaySize = new Point( );
Activity.WindowManager.DefaultDisplay.GetSize( displaySize );
ScreenSize = new System.Drawing.SizeF( displaySize.X, displaySize.Y );
// scale the image to match the view's width
ScreenToImageScalar = (float) SourceImage.Width / (float) ScreenSize.Width;
// get the scaled dimensions, maintaining aspect ratio
float scaledWidth = (float)SourceImage.Width * (1.0f / ScreenToImageScalar);
float scaledHeight = (float)SourceImage.Height * (1.0f / ScreenToImageScalar);
// now, if the scaled height is too large, re-calc with Height is the dominant,
// so we guarantee a fit within the view.
if( scaledHeight > ScreenSize.Height )
{
ScreenToImageScalar = (float) SourceImage.Height / (float) ScreenSize.Height;
scaledWidth = (float)SourceImage.Width * (1.0f / ScreenToImageScalar);
scaledHeight = (float)SourceImage.Height * (1.0f / ScreenToImageScalar);
}
ScaledSourceImage = Bitmap.CreateScaledBitmap( SourceImage, (int)scaledWidth, (int)scaledHeight, false );
// setup our layout for touch input
RelativeLayout view = inflater.Inflate( Resource.Layout.ImageCrop, container, false ) as RelativeLayout;
view.SetOnTouchListener( this );
// create the view that will display the image to crop
ImageView = new AspectScaledImageView( Rock.Mobile.PlatformSpecific.Android.Core.Context );
ImageView.LayoutParameters = new RelativeLayout.LayoutParams( ViewGroup.LayoutParams.WrapContent, ViewGroup.LayoutParams.WrapContent );
ImageView.LayoutParameters.Width = ScaledSourceImage.Width;
ImageView.LayoutParameters.Height = ScaledSourceImage.Height;
// center the image
ImageView.SetX( (ScreenSize.Width - ImageView.LayoutParameters.Width ) / 2 );
ImageView.SetY( (ScreenSize.Height - ImageView.LayoutParameters.Height ) / 2 );
view.AddView( ImageView );
// create the draggable crop view that will let the user pic which part of the image to use.
CropView = new View( Rock.Mobile.PlatformSpecific.Android.Core.Context );
CropView.LayoutParameters = new LinearLayout.LayoutParams( ViewGroup.LayoutParams.WrapContent, ViewGroup.LayoutParams.WrapContent );
// the crop view's dimensions should be based on what the user wanted to crop to. We'll do width, and then height as a scale of width.
CropView.LayoutParameters.Width = (int) (scaledWidth < scaledHeight ? scaledWidth : scaledHeight);
CropView.LayoutParameters.Height = (int) ((float) CropView.LayoutParameters.Width * CropAspectRatio);
// the crop view should be a nice outlined rounded rect
float _Radius = 3.0f;
RoundRectShape rectShape = new RoundRectShape( new float[] { _Radius,
_Radius,
_Radius,
_Radius,
_Radius,
_Radius,
_Radius,
_Radius }, null, null );
// configure its paint
ShapeDrawable border = new ShapeDrawable( rectShape );
border.Paint.SetStyle( Paint.Style.Stroke );
border.Paint.StrokeWidth = 8;
border.Paint.Color = Color.WhiteSmoke;
CropView.Background = border;
// set our clamp values
CropViewMinPos = new PointF( (ScreenSize.Width - scaledWidth) / 2,
(ScreenSize.Height - scaledHeight) / 2 );
CropViewMaxPos = new PointF( CropViewMinPos.X + (scaledWidth - CropView.LayoutParameters.Width),
CropViewMinPos.Y + (scaledHeight - CropView.LayoutParameters.Height) );
view.AddView( CropView );
// create a mask layer that will block out the parts of the image that will be cropped
MaskLayer = new Rock.Mobile.PlatformSpecific.Android.Graphics.MaskLayer( (int)ScreenSize.Width, (int)ScreenSize.Height, CropView.LayoutParameters.Width, CropView.LayoutParameters.Height, Rock.Mobile.PlatformSpecific.Android.Core.Context );
MaskLayer.LayoutParameters = new RelativeLayout.LayoutParams( (int)ScreenSize.Width, (int)ScreenSize.Height );
MaskLayer.Opacity = 0.00f;
view.AddView( MaskLayer );
// Now setup our bottom area with cancel, crop, and text to explain
RelativeLayout bottomBarLayout = new RelativeLayout( Rock.Mobile.PlatformSpecific.Android.Core.Context );
bottomBarLayout.LayoutParameters = new RelativeLayout.LayoutParams( ViewGroup.LayoutParams.MatchParent, ViewGroup.LayoutParams.WrapContent );
((RelativeLayout.LayoutParams)bottomBarLayout.LayoutParameters).AddRule( LayoutRules.AlignParentBottom );
// set the nav subBar color (including opacity)
Color navColor = Rock.Mobile.UI.Util.GetUIColor( PrivateSubNavToolbarConfig.BackgroundColor );
navColor.A = (Byte) ( (float) navColor.A * PrivateSubNavToolbarConfig.Opacity );
bottomBarLayout.SetBackgroundColor( navColor );
bottomBarLayout.LayoutParameters.Height = 150;
view.AddView( bottomBarLayout );
// setup the cancel button (which will undo cropping or take you back to the picture taker)
CancelButton = new Button( Rock.Mobile.PlatformSpecific.Android.Core.Context );
CancelButton.LayoutParameters = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.WrapContent, ViewGroup.LayoutParams.WrapContent );
CancelButton.Gravity = GravityFlags.Left;
((RelativeLayout.LayoutParams)CancelButton.LayoutParameters).AddRule( LayoutRules.AlignParentLeft );
// set the crop button's font
Android.Graphics.Typeface fontFace = Rock.Mobile.PlatformSpecific.Android.Graphics.FontManager.Instance.GetFont( PrivateControlStylingConfig.Icon_Font_Secondary );
CancelButton.SetTypeface( fontFace, Android.Graphics.TypefaceStyle.Normal );
CancelButton.SetTextSize( Android.Util.ComplexUnitType.Dip, PrivateImageCropConfig.CropCancelButton_Size );
CancelButton.Text = PrivateImageCropConfig.CropCancelButton_Text;
CancelButton.Click += (object sender, EventArgs e) =>
{
// don't allow button presses while animations are going on
if( Animating == false )
{
// if they hit cancel while previewing, go back to editing
if( Mode == CropMode.Previewing )
{
SetMode( CropMode.Editing );
}
else
{
// they pressed it while they're in editing mode, so go back to camera mode
Activity.OnBackPressed( );
}
}
};
bottomBarLayout.AddView( CancelButton );
// setup the Confirm button, which will use a font to display its graphic
ConfirmButton = new Button( Rock.Mobile.PlatformSpecific.Android.Core.Context );
ConfirmButton.LayoutParameters = new RelativeLayout.LayoutParams(ViewGroup.LayoutParams.WrapContent, ViewGroup.LayoutParams.WrapContent );
ConfirmButton.Gravity = GravityFlags.Right;
((RelativeLayout.LayoutParams)ConfirmButton.LayoutParameters).AddRule( LayoutRules.AlignParentRight );
// set the crop button's font
fontFace = Rock.Mobile.PlatformSpecific.Android.Graphics.FontManager.Instance.GetFont( PrivateControlStylingConfig.Icon_Font_Secondary );
ConfirmButton.SetTypeface( fontFace, Android.Graphics.TypefaceStyle.Normal );
ConfirmButton.SetTextSize( Android.Util.ComplexUnitType.Dip, PrivateImageCropConfig.CropOkButton_Size );
ConfirmButton.Text = PrivateImageCropConfig.CropOkButton_Text;
// when clicked, we should crop the image.
ConfirmButton.Click += (object sender, EventArgs e) =>
{
// don't allow button presses while animations are going on
if( Animating == false )
{
// if they pressed confirm while editing, go to preview
if( Mode == CropMode.Editing )
{
SetMode( CropMode.Previewing );
}
else
{
// notify the caller
SpringboardParent.ModalFragmentDone( CroppedImage );
}
}
};
bottomBarLayout.AddView( ConfirmButton );
// start in editing mode (obviously)
SetMode( CropMode.Editing );
// start the cropper centered
MoveCropView( new PointF( (ScreenSize.Width - CropView.LayoutParameters.Width) / 2, (ScreenSize.Height - CropView.LayoutParameters.Height) / 2 ) );
MaskLayer.Position = new PointF( CropView.GetX( ), CropView.GetY( ) );
return view;
}
/// <summary>
/// Gets the equilateral triangle.
/// </summary>
/// <param name="width">The width.</param>
/// <param name="height">The height.</param>
/// <returns>Path.</returns>
private Path GetEquilateralTriangle(int width, int height)
{
PointF p1, p2, p3;
if(_arrowDirection == ArrowDirection.LEFT)
{
p1 = new PointF(0, (height) / 2);
p2 = new PointF(width, 0);
p3 = new PointF(width, height);
} else
{
p1 = new PointF(width, height / 2);
p2 = new PointF(0, 0);
p3 = new PointF(0, height);
}
Path path = new Path();
path.MoveTo(p1.X, p1.Y);
path.LineTo(p2.X, p2.Y);
path.LineTo(p3.X, p3.Y);
return path;
}
private void ComputeDataPoints()
{
double minValue = (double) datapoints.Min ();
double maxValue = (double) datapoints.Max ();
var columnWidth = (float) Width / datapoints.Length;
var columnCenter = (float) columnWidth / 2;
_chartPoints = new PointF[datapoints.Length];
for (var i = 0; i < datapoints.Length; i++) {
var x = columnCenter;
var y = Scale (datapoints [i], minValue, maxValue, 1, chartPixelHeight);
_chartPoints [i] = new PointF (x, y);
columnCenter += columnWidth;
}
}
void MapControl_Touch(object sender, TouchEventArgs args)
{
if (_map.Lock) return;
var x = (int)args.Event.RawX;
var y = (int)args.Event.RawY;
switch (args.Event.Action)
{
case MotionEventActions.Down:
_previousMap = null;
_mode = Drag;
break;
case MotionEventActions.Up:
_previousMap = null;
_mode = None;
_map.ViewChanged (true);
break;
case MotionEventActions.Pointer2Down:
_previousMap = null;
_oldDist = Spacing(args.Event);
MidPoint(_currentMid, args.Event);
_previousMid = _currentMid;
_mode = Zoom;
break;
case MotionEventActions.Pointer2Up:
_previousMap = null;
_previousMid = null;
_mode = Drag;
_map.ViewChanged (true);
break;
case MotionEventActions.Move:
switch (_mode)
{
case Drag:
_currentMap = new PointF (x, y);
if (_previousMap != null) {
_map.Viewport.Transform (_currentMap.X, _currentMap.Y, _previousMap.X, _previousMap.Y);
RefreshGraphics ();
}
_previousMap = _currentMap;
break;
case Zoom:
if (args.Event.PointerCount < 2) return;
var newDist = Spacing (args.Event);
var scale = newDist / _oldDist;
_oldDist = Spacing (args.Event);
_previousMid = new PointF (_currentMid.X, _currentMid.Y);
MidPoint (_currentMid, args.Event);
_map.Viewport.Transform(_currentMid.X, _currentMid.Y, _previousMid.X, _previousMid.Y, scale);
RefreshGraphics ();
break;
}
break;
}
}
public PointF TransformPoint(PointF p)
{
var px = new ag.PointF[] { p.ToAndroid() };
#if TODO
this.Control.TransformPoints(px);
#else
throw new NotImplementedException();
#endif
return px[0].ToEto();
}
public static PointF ToEto(this ag.PointF point)
{
return(new PointF(point.X, point.Y));
}
//--------------------------------------------------------------
// STATIC METHODS
//--------------------------------------------------------------
public static Bitmap CreateImage(int blockSize, TetrisColor color)
{
if(color == TetrisColor.ColorMax)
return null;
// Create the image with its canvas to draw in it
Bitmap image = Bitmap.CreateBitmap(blockSize, blockSize, Bitmap.Config.Argb8888);
Canvas imageCanvas = new Canvas(image);
// Calculate the width of the borders with a percentage of the size of the block
float borderWidth = BorderWidth * blockSize;
float borderWidth3D = BorderWidth3D * blockSize;
// Calculate all the colors for the block based on its tetris color
Color baseColor = adjustColor(Utils.getAndroidColor(color), SvBaseColor);
Color topColor = adjustColor(baseColor, SvTopColor);
Color leftColor = adjustColor(baseColor, SvLeftColor);
Color rightColor = adjustColor(baseColor, SvRightColor);
Color bottomColor = adjustColor(baseColor, SvBottomColor);
Color borderColor = adjustColor(baseColor, SvBorderColor);
// Draw the border
Paint borderPaint = new Paint {AntiAlias = true, Color = borderColor};
for(int i = 0 ; i < BorderWidth ; i++)
{
imageCanvas.DrawRect(i, blockSize - i, blockSize - i, i, borderPaint);
}
borderPaint.Dispose();
// Define the corners of the big rectangle without the border
PointF outerRectTopLeft = new PointF(
borderWidth,
borderWidth);
PointF outerRectTopRight = new PointF(
blockSize - borderWidth,
borderWidth);
PointF outerRectBottomRight = new PointF(
blockSize - borderWidth,
blockSize - borderWidth);
PointF outerRectBottomLeft = new PointF(
borderWidth,
blockSize - borderWidth);
// Define the corners of the small rectangle in the middle
PointF innerRectTopLeft = new PointF(
borderWidth + borderWidth3D,
borderWidth + borderWidth3D);
PointF innerRectTopRight = new PointF(
blockSize -borderWidth - borderWidth3D,
borderWidth + borderWidth3D);
PointF innerRectBottomRight = new PointF(
blockSize -borderWidth - borderWidth3D,
blockSize -borderWidth - borderWidth3D);
PointF innerRectBottomLeft = new PointF(
borderWidth + borderWidth3D,
blockSize -borderWidth - borderWidth3D);
// Draw inner square
PointF[] innerSquare = new[]
{
innerRectTopLeft,
innerRectTopRight,
innerRectBottomRight,
innerRectBottomLeft
};
drawPolygonInCanvas(imageCanvas, innerSquare, baseColor);
// Draw top 3D border
PointF[] top3dBorder = new[]
{
outerRectTopLeft,
outerRectTopRight,
innerRectTopRight,
innerRectTopLeft
};
drawPolygonInCanvas(imageCanvas, top3dBorder, topColor);
// Draw bottom 3D border
PointF[] bottom3dBorder = new[]
{
innerRectBottomLeft,
innerRectBottomRight,
outerRectBottomRight,
outerRectBottomLeft
};
drawPolygonInCanvas(imageCanvas, bottom3dBorder, bottomColor);
// Draw left 3D border
PointF[] left3dBorder = new[]
{
outerRectTopLeft,
innerRectTopLeft,
innerRectBottomLeft,
outerRectBottomLeft
};
drawPolygonInCanvas(imageCanvas, left3dBorder, leftColor);
// Draw right 3D border
PointF[] right3dBorder = new[]
{
innerRectTopRight,
outerRectTopRight,
outerRectBottomRight,
innerRectBottomRight
};
drawPolygonInCanvas(imageCanvas, right3dBorder, rightColor);
imageCanvas.Dispose();
return image;
}
public void AddLine(float startX, float startY, float endX, float endY)
{
this.Control.MoveTo(startX, startY);
this.Control.LineTo(endX, endY);
position = new ag.PointF(endX, endY);
}
private static void MidPoint(PointF point, MotionEvent me)
{
var x = me.GetX(0) + me.GetX(1);
var y = me.GetY(0) + me.GetY(1);
point.Set(x / 2, y / 2);
}
public static void MoveTo (this Path path, PointF point) => path.MoveTo (point.X, point.Y);
void MapView_Touch(object sender, TouchEventArgs args)
{
var x = (int)args.Event.RawX;
var y = (int)args.Event.RawY;
switch (args.Event.Action)
{
case MotionEventActions.Down:
_previousMap = null;
_mode = Drag;
break;
case MotionEventActions.Up:
_previousMap = null;
Invalidate();
_mode = None;
_map.ViewChanged(true);
break;
case MotionEventActions.Pointer2Down:
_previousMap = null;
_oldDist = Spacing(args.Event);
MidPoint(_currentMid, args.Event);
_previousMid = _currentMid;
_mode = Zoom;
break;
case MotionEventActions.Pointer2Up:
_previousMap = null;
_previousMid = null;
_mode = Drag;
break;
case MotionEventActions.Move:
switch (_mode)
{
case Drag:
_currentMap = new PointF(x, y);
if (_previousMap != null)
{
_map.Viewport.Transform(
_currentMap.X,
_currentMap.Y,
_previousMap.X,
_previousMap.Y);
Invalidate();
}
_previousMap = _currentMap;
break;
case Zoom:
{
if (args.Event.PointerCount < 2)
return;
var newDist = Spacing(args.Event);
var scale = newDist / _oldDist;
_oldDist = Spacing(args.Event);
_previousMid = new PointF(_currentMid.X, _currentMid.Y);
MidPoint(_currentMid, args.Event);
_map.Viewport.Center = _map.Viewport.ScreenToWorld(
_currentMid.X,
_currentMid.Y);
_map.Viewport.Resolution = _map.Viewport.Resolution / scale;
_map.Viewport.Center = _map.Viewport.ScreenToWorld(
(_map.Viewport.Width - _currentMid.X),
(_map.Viewport.Height - _currentMid.Y));
_map.Viewport.Transform(
_currentMid.X,
_currentMid.Y,
_previousMid.X,
_previousMid.Y);
Invalidate();
}
break;
}
break;
}
}
public static void LineTo (this Path path, PointF point) => path.LineTo (point.X, point.Y);
private static void drawPolygonInCanvas(Canvas canvas, PointF[] polygon, Color color)
{
var path = new Path();
// Set the first point, that the drawing will start from.
path.MoveTo(polygon[0].X, polygon[0].Y);
for (var i = 1; i < polygon.Length; i++)
{
// Draw a line from the previous point in the path to the new point.
path.LineTo(polygon[i].X, polygon[i].Y);
}
Paint paint = new Paint {
AntiAlias = true,
Color = color
};
paint.SetStyle(Paint.Style.Fill);
canvas.DrawPath(path, paint);
paint.Dispose();
}
public override bool OnTouchEvent(MotionEvent ev)
{
if (_mTouchInterceptionListener != null)
{
switch (ev.ActionMasked)
{
case MotionEventActions.Down:
if (_mIntercepting)
{
_mTouchInterceptionListener.OnDownMotionEvent(ev);
DuplicateTouchEventForChildren(ev);
return true;
}
break;
case MotionEventActions.Move:
// ACTION_MOVE will be passed suddenly, so initialize to avoid exception.
if (_mInitialPoint == null)
{
_mInitialPoint = new PointF(ev.GetX(), ev.GetY());
}
// diffX and diffY are the origin of the motion, and should be difference
// from the position of the ACTION_DOWN event occurred.
float diffX = ev.GetX() - _mInitialPoint.X;
float diffY = ev.GetY() - _mInitialPoint.Y;
_mIntercepting = _mTouchInterceptionListener.ShouldInterceptTouchEvent(ev, true, diffX, diffY);
if (_mIntercepting)
{
// If this layout didn't receive ACTION_DOWN motion event,
// we should generate ACTION_DOWN event with current position.
if (!_mBeganFromDownMotionEvent)
{
_mBeganFromDownMotionEvent = true;
MotionEvent event2 = MotionEvent.ObtainNoHistory(_mPendingDownMotionEvent);
event2.SetLocation(ev.GetX(), ev.GetY());
_mTouchInterceptionListener.OnDownMotionEvent(event2);
_mInitialPoint = new PointF(ev.GetX(), ev.GetY());
diffX = diffY = 0;
}
// Children's touches should be canceled
if (!_mChildrenEventsCanceled)
{
_mChildrenEventsCanceled = true;
DuplicateTouchEventForChildren(ObtainMotionEvent(ev, MotionEventActions.Cancel));
}
_mTouchInterceptionListener.OnMoveMotionEvent(ev, diffX, diffY);
// If next mIntercepting become false,
// then we should generate fake ACTION_DOWN event.
// Therefore we set pending flag to true as if this is a down motion event.
_mDownMotionEventPended = true;
// Whether or not this event is consumed by the listener,
// assume it consumed because we declared to intercept the event.
return true;
}
if (_mDownMotionEventPended)
{
_mDownMotionEventPended = false;
MotionEvent event2 = MotionEvent.ObtainNoHistory(_mPendingDownMotionEvent);
event2.SetLocation(ev.GetX(), ev.GetY());
DuplicateTouchEventForChildren(ev, event2);
}
else
{
DuplicateTouchEventForChildren(ev);
}
// If next mIntercepting become true,
// then we should generate fake ACTION_DOWN event.
// Therefore we set beganFromDownMotionEvent flag to false
// as if we haven't received a down motion event.
_mBeganFromDownMotionEvent = false;
// Reserve children's click cancellation here if they've already canceled
_mChildrenEventsCanceled = false;
break;
case MotionEventActions.Up:
case MotionEventActions.Cancel:
_mBeganFromDownMotionEvent = false;
if (_mIntercepting)
{
_mTouchInterceptionListener.OnUpOrCancelMotionEvent(ev);
}
// Children's touches should be canceled regardless of
// whether or not this layout intercepted the consecutive motion events.
if (!_mChildrenEventsCanceled)
{
_mChildrenEventsCanceled = true;
if (_mDownMotionEventPended)
{
_mDownMotionEventPended = false;
MotionEvent event2 = MotionEvent.ObtainNoHistory(_mPendingDownMotionEvent);
event2.SetLocation(ev.GetX(), ev.GetY());
DuplicateTouchEventForChildren(ev, event2);
}
else
{
DuplicateTouchEventForChildren(ev);
}
}
return true;
}
}
return base.OnTouchEvent(ev);
}
public static XIR.Point RemoteRepresentation(this AG.PointF point) => new XIR.Point(point.X, point.Y);
/// <summary>
/// detect faces on a picture and draw a square in each face
/// </summary>
private void detectFaces(){
//first check if picture has been taken
if(null != cameraBitmap){
//get width of a picture
int width = cameraBitmap.Width;
//get height of a picture
int height = cameraBitmap.Height;
//Initialize a facedetector with the picture dimensions and the max number of faces to check
FaceDetector detector = new FaceDetector(width, height, MainActivity.MAX_FACES);
//Create an array of faces with the number of max faces to check
Android.Media.FaceDetector.Face[] faces = new Android.Media.FaceDetector.Face[MainActivity.MAX_FACES];
//create a main bitmap
Bitmap bitmap565 = Bitmap.CreateBitmap(width, height, Bitmap.Config.Rgb565);
//create a dither paint
Paint ditherPaint = new Paint();
//create a draw paint
Paint drawPaint = new Paint();
//set true dither to dither paint variable
ditherPaint.Dither = true;
//set color red for the square
drawPaint.Color = Color.Red;
//set stroke to style
drawPaint.SetStyle(Paint.Style.Stroke);
//set stroke width
drawPaint.StrokeWidth = 2;
//Create a canvas
Canvas canvas = new Canvas();
//set bitmap to canvas
canvas.SetBitmap(bitmap565);
//draw bitmap to canvas
canvas.DrawBitmap(cameraBitmap, 0, 0, ditherPaint);
//get a number of faces detected
int facesFound = detector.FindFaces(bitmap565, faces);
//mid face point
PointF midPoint = new PointF();
//eye distance variable
float eyeDistance = 0.0f;
//confidence variable
float confidence = 0.0f;
//print numbre of faces found
System.Console.WriteLine ("Number of faces found: " + facesFound);
//check if found at least one face
if(facesFound > 0)
{
//for each face draw a red squeare
for(int index=0; index<facesFound; ++index){
// get midpoint of a face
faces[index].GetMidPoint(midPoint);
//get eye distance
eyeDistance = faces[index].EyesDistance();
//get confidence
confidence = faces [index].Confidence ();
//print all parameters
System.Console.WriteLine ("Confidence: " + confidence +
", Eye distance: " + eyeDistance +
", Mid Point: (" + midPoint.X + ", " + midPoint.Y + ")");
//draw a square in the picture
canvas.DrawRect((int)midPoint.X - eyeDistance ,
(int)midPoint.Y- eyeDistance ,
(int)midPoint.X + eyeDistance,
(int)midPoint.Y + eyeDistance, drawPaint);
}
}
//get imageview from layout
ImageView imageView = (ImageView)FindViewById(Resource.Id.image_view);
//set image with the red squares to imageview
imageView.SetImageBitmap(bitmap565);
}
}
public static Bitmap Draw(int width, int height, double direction)
{
if(width == 0 || height == 0)
return null;
int w2 = width / 2;
int h2 = height / 2;
Paint light = new Paint(PaintFlags.AntiAlias);
Paint dark = new Paint(PaintFlags.AntiAlias);
Paint black = new Paint(PaintFlags.AntiAlias);
light.Color = new Color(128, 0, 0, 255);
light.StrokeWidth = 0f;
light.SetStyle(Paint.Style.FillAndStroke);
dark.Color = new Color(255, 0, 0, 255);
dark.StrokeWidth = 0f;
dark.SetStyle(Paint.Style.FillAndStroke);
black.Color = new Color(0, 0, 0, 255);
black.StrokeWidth = 0f;
black.SetStyle(Paint.Style.Stroke);
// Values of direction are between 0° and 360°, but for drawing we need -180° to +180°
direction -= 180;
double rad1 = direction / 180.0 * Math.PI;
double rad2 = (direction + 180.0 + 30.0) / 180.0 * Math.PI;
double rad3 = (direction + 180.0 - 30.0) / 180.0 * Math.PI;
double rad4 = (direction + 180.0) / 180.0 * Math.PI;
PointF p1 = new PointF((float) (w2 + w2 * Math.Sin (rad1)), (float) (h2 + h2 * Math.Cos (rad1)));
PointF p2 = new PointF((float) (w2 + w2 * Math.Sin (rad2)), (float) (h2 + h2 * Math.Cos (rad2)));
PointF p3 = new PointF((float) (w2 + w2 * Math.Sin (rad3)), (float) (h2 + h2 * Math.Cos (rad3)));
PointF p4 = new PointF((float) (w2 + width / 3 * Math.Sin (rad4)), (float) (h2 + height / 3 * Math.Cos (rad4)));
Bitmap b = Bitmap.CreateBitmap(width, height, Bitmap.Config.Argb8888);
using(Canvas c = new Canvas(b)) {
int cx = c.Width / 2 - 1;
int cy = c.Height / 2 - 1;
global::Android.Graphics.Path path1 = new global::Android.Graphics.Path ();
global::Android.Graphics.Path path2 = new global::Android.Graphics.Path ();
global::Android.Graphics.Path path3 = new global::Android.Graphics.Path ();
path1.MoveTo (p1.X,p1.Y);
path1.LineTo (p2.X,p2.Y);
path1.LineTo (p4.X,p4.Y);
path1.LineTo (p1.X,p1.Y);
path2.MoveTo (p1.X,p1.Y);
path2.LineTo (p3.X,p3.Y);
path2.LineTo (p4.X,p4.Y);
path2.LineTo (p1.X,p1.Y);
path3.MoveTo (p1.X,p1.Y);
path3.LineTo (p2.X,p2.Y);
path3.LineTo (p4.X,p4.Y);
path3.LineTo (p1.X,p1.Y);
path3.LineTo (p3.X,p3.Y);
path3.LineTo (p4.X,p4.Y);
light.Color = new Color (128, 0, 0, 255);
dark.Color = new Color (255, 0, 0, 255);
black.Color = new Color (0, 0, 0, 255);
c.DrawPath (path1, light);
c.DrawPath (path2, dark);
c.DrawPath (path3, black);
}
return b;
}
internal static ag.PointF[] ToAndroid(this PointF[] points)
{
var result =
new ag.PointF[points.Length];
for (var i = 0;
i < points.Length;
++i)
{
var p = points[i];
result[i] =
new ag.PointF(p.X, p.Y);
}
return result;
}
public override bool OnTouchEvent (MotionEvent e)
{
// check correct zoomlevel
if (rows.Count <= 12) {
return base.OnTouchEvent (e);
}
if (e.Action == MotionEventActions.Down) {
// check selected row
selectedRowIndex = GetSelectedBarIndex (Convert.ToInt32 (e.GetX ()), Convert.ToInt32 (e.GetY ()));
if (selectedRowIndex == -1) {
ZoomOutBars ();
return base.OnTouchEvent (e);
}
tapInitialPos = new PointF (e.GetX (), e.GetY ());
}
if (e.Action == MotionEventActions.Up || e.Action == MotionEventActions.Cancel) {
// set a small threshold to detect drag
if ( Math.Abs ( tapInitialPos.X - e.GetX ()) > 30 || Math.Abs ( tapInitialPos.Y - e.GetY ()) > 30 ) {
ZoomOutBars ();
return base.OnTouchEvent (e);
}
ZoomInBars (selectedRowIndex);
}
return true;
}
