// If the cropping rectangle's size changed significantly, change the
// view's center and scale according to the cropping rectangle.
private void centerBasedOnHighlightView(HighlightView hv)
{
Rect drawRect = hv.DrawRect;
float width = drawRect.Width();
float height = drawRect.Height();
float thisWidth = Width;
float thisHeight = Height;
float z1 = thisWidth / width * .6F;
float z2 = thisHeight / height * .6F;
float zoom = Math.Min(z1, z2);
zoom = zoom * this.GetScale();
zoom = Math.Max(1F, zoom);
if ((Math.Abs(zoom - GetScale()) / zoom) > .1)
{
float[] coordinates = new float[]
{
hv.CropRect.CenterX(),
hv.CropRect.CenterY()
};
ImageMatrix.MapPoints(coordinates);
ZoomTo(zoom, coordinates[0], coordinates[1], 300F);
}
ensureVisible(hv);
}
private PointF MapPoint(PointF point)
{
var imageX = ToImageValue(point.X);
var imageY = ToImageValue(point.Y);
var pointArray = new[] { imageX, imageY };
ImageMatrix.MapPoints(pointArray);
var mappedPoint = new PointF(pointArray[0], pointArray[1]);
return(mappedPoint);
}
// If the cropping rectangle's size changed significantly, change the
// view's center and scale according to the cropping rectangle.
private void CenterBasedOnHighlightView(HighlightView hv)
{
float width = hv.DrawRect.Width();
float height = hv.DrawRect.Height();
float thisWidth = Width;
float thisHeight = Height;
var z1 = thisWidth / width * .6F;
var z2 = thisHeight / height * .6F;
var zoom = Math.Max(1F, ((Math.Min(z1, z2)) * GetScale()));
if ((Math.Abs(zoom - GetScale()) / zoom) > .1)
{
float[] coordinates = { hv.CropRect.CenterX(), hv.CropRect.CenterY() };
ImageMatrix.MapPoints(coordinates);
ZoomTo(zoom, coordinates[0], coordinates[1], 300F);
}
EnsureVisible(hv);
}
