void ApplyTranslation(EvasMap map, ERect geometry, ref bool changed)
{
var shiftX = Forms.ConvertToScaledPixel(Element.TranslationX);
var shiftY = Forms.ConvertToScaledPixel(Element.TranslationY);
// apply translation, i.e. move/shift the object a little
if (shiftX != 0 || shiftY != 0)
{
if (changed)
{
// special care is taken to apply the translation last
Point3D p;
for (int i = 0; i < 4; i++)
{
p = map.GetPointCoordinate(i);
p.X += shiftX;
p.Y += shiftY;
map.SetPointCoordinate(i, p);
}
}
else
{
// in case when we only need translation, then construct the map in a simpler way
geometry.X += shiftX;
geometry.Y += shiftY;
map.PopulatePoints(geometry, 0);
changed = true;
}
}
}
void ApplyTransformation()
{
EvasMap map = new EvasMap(4);
Rect geometry = _box1.Geometry;
map.PopulatePoints(geometry, 0);
map.Rotate3D(0, 0, _angle, (int)(geometry.X + geometry.Width * 0.5), (int)(geometry.Y + geometry.Height * 0.5), 0);
Point3D p;
for (int i = 0; i < 4; i++)
{
p = map.GetPointCoordinate(i);
p.X += _totalX;
p.Y += _totalY;
map.SetPointCoordinate(i, p);
}
_box1.EvasMap = map;
_box1.IsMapEnabled = true;
}
/*
* void ApplyRotation(EvasMap map, Rect geometry, ref bool changed)
* {
* var rotationX = Element.RotationX;
* var rotationY = Element.RotationY;
* var rotationZ = Element.Rotation;
* var anchorX = Element.AnchorX;
* var anchorY = Element.AnchorY;
*
* // apply rotations
* if (rotationX != 0 || rotationY != 0 || rotationZ != 0)
* {
* map.Rotate3D(rotationX, rotationY, rotationZ, (int)(geometry.X + geometry.Width * anchorX),
* (int)(geometry.Y + geometry.Height * anchorY), 0);
* changed = true;
* }
* }
*
* void ApplyScale(EvasMap map, Rect geometry, ref bool changed)
* {
* var scale = Element.Scale;
*
* // apply scale factor
* if (scale != 1.0)
* {
* map.Zoom(scale, scale,
* geometry.X + (int)(geometry.Width * view.AnchorX),
* geometry.Y + (int)(geometry.Height * Element.AnchorY));
* changed = true;
* }
* }
*
* void ApplyTranslation(EvasMap map, Rect geometry, ref bool changed)
* {
* var shiftX = Forms.ConvertToScaledPixel(Element.TranslationX);
* var shiftY = Forms.ConvertToScaledPixel(Element.TranslationY);
*
* // apply translation, i.e. move/shift the object a little
* if (shiftX != 0 || shiftY != 0)
* {
* if (changed)
* {
* // special care is taken to apply the translation last
* Point3D p;
* for (int i = 0; i < 4; i++)
* {
* p = map.GetPointCoordinate(i);
* p.X += shiftX;
* p.Y += shiftY;
* map.SetPointCoordinate(i, p);
* }
* }
* else
* {
* // in case when we only need translation, then construct the map in a simpler way
* geometry.X += shiftX;
* geometry.Y += shiftY;
* map.PopulatePoints(geometry, 0);
*
* changed = true;
* }
* }
* }
*/
/// <summary>
/// Set Matrix of view instance.
/// </summary>
internal static void SetMatrix(this EvasObject view, ReactNative.UIManager.MatrixMathHelper.MatrixDecompositionContext matrix, bool reset)
{
if (view == null)
{
throw new ArgumentNullException(nameof(view));
}
double TranslationX = 0;
double TranslationY = 0;
double rotationX = 0;
double rotationY = 0;
double rotationZ = 0;
double ScaleX = 1;
double ScaleY = 1;
if (matrix != null)
{
TranslationX = matrix.translation[0];
TranslationY = matrix.translation[1];
rotationX = matrix.rotationDegrees[0];
rotationY = matrix.rotationDegrees[1];
rotationZ = matrix.rotationDegrees[2];
ScaleX = matrix.scale[0];
ScaleY = matrix.scale[1];
}
var map = new EvasMap(4);
var g = view.Geometry;
map.PopulatePoints(g, 0);
//setScale
map.Zoom(ScaleX, ScaleY,
view.Geometry.X + (int)(view.Geometry.Width * 0.5),
view.Geometry.Y + (int)(view.Geometry.Height * 0.5));
//setRotation
map.Rotate3D(rotationX, rotationY, rotationZ,
(int)(view.Geometry.X + view.Geometry.Width * 0.5), (int)(view.Geometry.Y + view.Geometry.Height * 0.5), 0);
//setTranslation
var shiftX = TranslationX;
var shiftY = TranslationY;
Point3D p;
for (int i = 0; i < 4; i++)
{
p = map.GetPointCoordinate(i);
p.X += (int)shiftX;
p.Y += (int)shiftY;
map.SetPointCoordinate(i, p);
}
view.EvasMap = map;
view.IsMapEnabled = true;
if (!reset)
{
if (matrix != null)
{
s_properties.GetOrCreateValue(view).matrix = matrix.Clone();
}
}
}
