public override void Init()
{
VgVisualElement renderVx = VgVisualDocHelper.CreateVgVisualDocFromFile(@"Samples\lion.svg").VgRootElem;
var spriteShape = new SpriteShape(renderVx);
_testSprite = new MyTestSprite(spriteShape);
//lionFill.AutoFlipY = true;
PixelFarm.CpuBlit.AffineMat mat = PixelFarm.CpuBlit.AffineMat.Iden();
mat.RotateDeg(30);
mat.Scale(2);
_currentTx = new PixelFarm.CpuBlit.VertexProcessing.Affine(mat);
}
//
void SetupCorner_Controller(UIControllerBox box)
{
Color c = KnownColors.FromKnownColor(KnownColor.Orange);
box.BackColor = c;// new Color(200, c.R, c.G, c.B);
box.SetLocation(200, 200);
box.Visible = true;
box.MouseDrag += (s, e) =>
{
Point pos = box.Position;
double x1 = pos.X;
double y1 = pos.Y;
if (firstTime)
{
_mouseDownX = x1;
_mouseDownY = y1;
firstTime = false;
//find rad of firsttime
_firstTimeRad = Math.Atan2(y1, x1);
_rotateAngleDiff = 0;
}
else
{
double newX = _actualX + e.XDiff;
double newY = _actualY + e.YDiff;
//find new angle
double thisTimeRad = Math.Atan2(newY, newX);
_rotateAngleDiff = thisTimeRad - _firstTimeRad;
x1 = _mouseDownX; //prevent rounding error
y1 = _mouseDownY; //prevent rounding error
}
//if (firstTime)
//{
// _snapX1 = x1;
// _snapY1 = y1;
// firstTime = false;
//}
//else
//{
// x1 = _snapX1;
// y1 = _snapY1;
//}
//double current_distance = Math.Sqrt(x1 * x1 + y1 * y1);
//
//double newX = pos.X + e.XDiff;
//double newY = pos.Y + e.YDiff;
//float diff = 1;
//if (e.XDiff > 0)
//{
// diff = -1;
//}
PixelFarm.CpuBlit.AffineMat aff = PixelFarm.CpuBlit.AffineMat.GetRotateMat(_rotateAngleDiff);
aff.Transform(ref x1, ref y1);
_actualX = x1;
_actualY = y1;
box.SetLocation((int)Math.Round(x1), (int)Math.Round(y1)); //essential to use double, prevent rounding err ***
//var targetBox = box.TargetBox;
////test rotation around some axis
////find box center
//if (targetBox != null)
//{
// //find box center
// float centerX = (float)((targetBox.Width + targetBox.Left) / 2f);
// float centerY = (float)((targetBox.Height + targetBox.Top) / 2f);
// //
// Double angle = Math.Atan2(newY - centerY, newX - centerX);
// //rotate
// PixelFarm.CpuBlit.VertexProcessing.Affine aff = PixelFarm.CpuBlit.VertexProcessing.Affine.NewMatix(
// PixelFarm.CpuBlit.VertexProcessing.AffinePlan.Translate(-targetBox.Width / 2, -targetBox.Height / 2),
// PixelFarm.CpuBlit.VertexProcessing.AffinePlan.Rotate(angle),
// PixelFarm.CpuBlit.VertexProcessing.AffinePlan.Translate(targetBox.Width / 2, targetBox.Height / 2)
// );
// //transform
// aff.Transform(ref x1, ref y1);
// box.SetLocation((int)x1, (int)y1);
//}
//if (targetBox != null)
//{
// //move target box too
// targetBox.SetLocation(newX + 5, newY + 5);
//}
e.CancelBubbling = true;
};
_controls.Add(box);
}
