private void gesture_PinchStarted(object sender, PinchStartedGestureEventArgs e)
{
var point = e.GetPosition(ContentPanel, 0);
var point2 = e.GetPosition(ContentPanel, 1);
message.Text = string.Format("pinch started at ({0},{1}) and ({1},{2}) with angle {3} and distance {4}",
point.X, point.Y, point2.X, point2.Y, e.Angle, e.Distance);
flickMessage.Text = null;
}
private void OnPinchStarted(object sender, PinchStartedGestureEventArgs e)
{
Point point0 = e.GetPosition(image, 0);
Point point1 = e.GetPosition(image, 1);
Point midpoint = new Point((point0.X + point1.X) / 2, (point0.Y + point1.Y) / 2);
image.RenderTransformOrigin = new Point(midpoint.X / image.ActualWidth, midpoint.Y / image.ActualHeight);
//initialAngle = transform.Rotation;
initialScale = transform.ScaleX;
image.Opacity = 0.8;
}
private void GestureListener_PinchStarted(object sender, PinchStartedGestureEventArgs e)
{
// Store the initial rotation angle and scaling
InitialScale = ImageTransformation.ScaleX;
// Calculate the center for the zooming
System.Windows.Point firstTouch = e.GetPosition(ComicImage, 0);
System.Windows.Point secondTouch = e.GetPosition(ComicImage, 1);
Center = new System.Windows.Point(firstTouch.X + (secondTouch.X - firstTouch.X) / 2.0, firstTouch.Y + (secondTouch.Y - firstTouch.Y) / 2.0);
}
private void OnPinchStarted(object sender, PinchStartedGestureEventArgs e)
{
_initialAngle = MyMustacheTransformation.Rotation;
_initialScale = MyMustacheTransformation.ScaleX;
Point firstTouch = e.GetPosition(myMustache, 0);
Point secondTouch = e.GetPosition(myMustache, 1);
Point center = new Point(firstTouch.X + (secondTouch.X - firstTouch.X) / 2.0,
firstTouch.Y + (secondTouch.Y - firstTouch.Y) / 2.0);
MyMustacheTransformation.CenterX = center.X;
MyMustacheTransformation.CenterY = center.Y;
}
private void OnGestureListenerPinchStarted(object sender, PinchStartedGestureEventArgs args)
{
_isPinching = args.OriginalSource == image;
if (_isPinching)
{
// Set transform centers
Point ptPinchCenter = args.GetPosition(image);
ptPinchCenter = previousTransform.Transform(ptPinchCenter);
scaleTransform.CenterX = ptPinchCenter.X;
scaleTransform.CenterY = ptPinchCenter.Y;
rotateTransform.CenterX = ptPinchCenter.X;
rotateTransform.CenterY = ptPinchCenter.Y;
_ptPinchPositionStart = args.GetPosition(this);
}
}
/// <summary>
/// Initializes the zooming operation
/// </summary>
private void OnPinchStarted(object sender, PinchStartedGestureEventArgs e)
{
_oldFinger1 = e.GetPosition(ImgZoom, 0);
_oldFinger2 = e.GetPosition(ImgZoom, 1);
_oldScaleFactor = 1;
}
private void gestureListener_PinchStarted(object sender, PinchStartedGestureEventArgs e)
{
if (imageMan == null)
return;
Interlocked.CompareExchange(ref zooming, 1, 0);
_oldFinger1 = e.GetPosition(image, 0);
_oldFinger2 = e.GetPosition(image, 1);
_oldScaleFactor = 1;
image.Source = imageMan.finalImage;
}
private void OnPinchStarted(object sender, PinchStartedGestureEventArgs e)
{
if (isAnimating)
return;
oldFinger1 = e.GetPosition(_content, 0);
oldFinger2 = e.GetPosition(_content, 1);
oldScaleFactor = 1;
e.Handled = true;
}
void OnGestureListenerPinchStarted(object sender, PinchStartedGestureEventArgs args)
{
isPinching = true;
//yve : remove current annotation
CurrentAnnotationCanvas.Children.Clear();
_manipulating = false;
_polyline = null;
if (isPinching)
{
// Set transform centers
Point ptPinchCenter = args.GetPosition(OriginalImage);
ptPinchCenter = previousTransform.Transform(ptPinchCenter);
scaleTransform.CenterX = ptPinchCenter.X;
scaleTransform.CenterY = ptPinchCenter.Y;
ptPinchPositionStart = args.GetPosition(this);
}
}
void gestures_PinchStarted(object sender, PinchStartedGestureEventArgs e)
{
_oldFinger1 = e.GetPosition(theThingToZoom, 0);
_oldFinger2 = e.GetPosition(theThingToZoom, 1);
_oldScaleFactor = 1;
}
/// <summary>
/// Pinch started
/// </summary>
/// <param name="sender">Event sender</param>
/// <param name="e">Event parameter</param>
void GestureListener_PinchStarted(
object sender,
PinchStartedGestureEventArgs e)
{
_pinchdownmat = _mat;
_pinchdown = _mat.Transform(e.GetPosition(_img));
}
private void GestureListener_PinchStarted(object sender, PinchStartedGestureEventArgs e)
{
_oldFinger1 = e.GetPosition(ZoomableImage, 0);
_oldFinger2 = e.GetPosition(ZoomableImage, 1);
_oldScaleFactor = 1;
}
// we only need to keep track of translation
// and for translation, we only care about the middle
// position of the two fingers
// OK, so the correct translation/scale we want to perform is:
//
// 1. move the initial middle of the two finger back to the initial translation
// 2. scale up by the current scaling
// 3. move back to the current middle of the two fingers
//
// If,
// if1, if2: are the initial finger touch
// translationRef: is the initial translation
// s: is the current scaling factor [this is e.DistanceRatio]
// e.DistanceRaio is the currentDistanceBetweenFingers/initDistanceBetweenFingers
// cf1, cf1: is the current finger position
//
// what we want is:
//
// im = 0.5 * (if1 + if2) <-- middle position of the two initial finger position
// deltaVec = translationRef - im <-- translate back by im
// cm = 0.5 * (cf1 + cf2) <-- middle position of the two current finger position
//
// Translation: cm + (deltaVec * s)
//
private void GestureListener_PinchStarted(object sender, PinchStartedGestureEventArgs e)
{
Point if1 = e.GetPosition(this.mImageRectangle, 0); // position of first finger
Point if2 = e.GetPosition(this.mImageRectangle, 1); // position of second finger
Point im = new Point((0.5f * (if1.X + if2.X)), // middle between the two fingers
(0.5f * (if1.Y + if2.Y)));
CompositeTransform t = this.imageToShow.Transform as CompositeTransform;
this.translationRef.X = t.TranslateX;
this.translationRef.Y = t.TranslateY;
this.scaleRef = t.ScaleX; // X and Y scales are always the same in our case
// deltaVec will take the middle of initial touch position to the
// initial translation position. This will give the proper effect of
// scaling with respect to the initial touch position
this.deltaVec.X = this.translationRef.X - im.X;
this.deltaVec.Y = this.translationRef.Y - im.Y;
}
/// <summary>
/// Initializes the zooming operation
/// </summary>
private static void OnPinchStarted(object sender, PinchStartedGestureEventArgs e)
{
ImageZoomerSettings settings;
Image image = sender as Image;
if (image == null)
return;
if (Images.TryGetValue(image, out settings))
{
settings.oldFinger1 = e.GetPosition(image, 0);
settings.oldFinger2 = e.GetPosition(image, 1);
settings.oldScaleFactor = 1;
}
}
private void OnPinchStarted(object s, PinchStartedGestureEventArgs e)
{
_oldFinger1 = e.GetPosition(bigPicture, 0);
_oldFinger2 = e.GetPosition(bigPicture, 1);
_oldScaleFactor = 1;
}
private void GestureListener_PinchStarted(object sender, PinchStartedGestureEventArgs e)
{
// store the initial rotation angle and scaling
initialScale = ImageTransformation.ScaleX;
// calculate the center for the zooming
Point firstTouch = e.GetPosition(DetailImage, 0);
Point secondTouch = e.GetPosition(DetailImage, 1);
double centerX = firstTouch.X + (secondTouch.X - firstTouch.X) / 2.0;
double centerY = firstTouch.Y + (secondTouch.Y - firstTouch.Y) / 2.0;
center = new Point(centerX, centerY);
_oldFinger1 = e.GetPosition(DetailImage, 0);
_oldFinger2 = e.GetPosition(DetailImage, 1);
_oldScaleFactor = 1;
}
private void OnPinchStarted(object s, PinchStartedGestureEventArgs e)
{
_fingerOne = e.GetPosition(MyImage, 0);
_fingerTwo = e.GetPosition(MyImage, 1);
_previousScale = 1;
}