/// <inheritdoc />
public override void SetSelectPoint(PreviewPoint point = null)
{
if (point == null)
{
_p1Start = new PreviewPoint((int)Bounds.X, (int)Bounds.Y);
}
_selectionPoint = PointInDragPoints(point);
}
/// <inheritdoc />
public override void MouseMove(int x, int y, int changeX, int changeY)
{
var rt = new RotateTransform(-RotationAngle, _rotationCenter.X, _rotationCenter.Y);
var point = rt.TransformPoint(x, y);
//See if we're resizing
if (_selectionPoint != null && (_selectionPoint.PointType == PreviewPoint.PointTypes.Size || _selectionPoint.PointType == PreviewPoint.PointTypes.Rotate))
{
//We are resizing, so figure our change and scale the points.
if (_selectionPoint == _dragPoints[0])
{
//Top Left
var newHeight = Bounds.Height + (Bounds.TopLeft.Y - point.Y);
var newWidth = Bounds.Width + (Bounds.TopLeft.X - point.X);
var minSize = ClampSize();
var scaleY = newHeight > minSize ? newHeight / Bounds.Height : 1;
var scaleX = newWidth > minSize ? newWidth / Bounds.Width : 1;
if (Control.ModifierKeys == Keys.Shift)
{
scaleX = scaleY = MaxValue(scaleX, scaleY);
}
Layout();
Scale(scaleX, scaleY, ZoomCoordToOriginal(_dragPoints[2].X), ZoomCoordToOriginal(_dragPoints[2].Y));
_selectionPoint = _dragPoints[0];
}
else if (_selectionPoint == _dragPoints[1])
{
//Top Right
var newHeight = Bounds.Height + (Bounds.TopRight.Y - point.Y);
var newWidth = Bounds.Width + (point.X - Bounds.TopRight.X);
var minSize = ClampSize();
var scaleY = newHeight > minSize ? newHeight / Bounds.Height : 1;
var scaleX = newWidth > minSize ? newWidth / Bounds.Width : 1;
if (Control.ModifierKeys == Keys.Shift)
{
scaleX = scaleY = MaxValue(scaleX, scaleY);
}
Scale(scaleX, scaleY, ZoomCoordToOriginal(_dragPoints[3].X), ZoomCoordToOriginal(_dragPoints[3].Y));
Layout();
_selectionPoint = _dragPoints[1];
}
else if (_selectionPoint == _dragPoints[2])
{
//Bottom Right
var newHeight = Bounds.Height + (point.Y - Bounds.BottomRight.Y);
var newWidth = Bounds.Width + (point.X - Bounds.BottomRight.X);
var minSize = ClampSize();
var scaleY = newHeight > minSize ? newHeight / Bounds.Height:1;
var scaleX = newWidth > minSize ? newWidth / Bounds.Width:1;
if (Control.ModifierKeys == Keys.Shift)
{
scaleX = scaleY = MaxValue(scaleX, scaleY);
}
Scale(scaleX, scaleY, ZoomCoordToOriginal(_dragPoints[0].X), ZoomCoordToOriginal(_dragPoints[0].Y));
Layout();
_selectionPoint = _dragPoints[2];
}
else if (_selectionPoint == _dragPoints[3])
{
//Bottom Left
var newHeight = Bounds.Height + (point.Y - Bounds.BottomLeft.Y);
var newWidth = Bounds.Width + (Bounds.BottomLeft.X - point.X);
var minSize = ClampSize();
var scaleY = newHeight > minSize ? newHeight / Bounds.Height : 1;
var scaleX = newWidth > minSize ? newWidth / Bounds.Width : 1;
if (Control.ModifierKeys == Keys.Shift)
{
scaleX = scaleY = MaxValue(scaleX, scaleY);
}
Scale(scaleX, scaleY, ZoomCoordToOriginal(_dragPoints[1].X), ZoomCoordToOriginal(_dragPoints[1].Y));
Layout();
_selectionPoint = _dragPoints[3];
}
else if (_selectionPoint == _dragPoints[4])
{
//We are rotating!
double angle = GetAngle(_rotationCenter, new Point(x, y));
RotationAngle = (int)Math.Round(angle, MidpointRounding.AwayFromZero);
_selectionPoint = _dragPoints[4];
}
}
else
{
var newX = _p1Start.X + changeX;
var newY = _p1Start.Y + changeY;
MoveTo(newX, newY);
}
}
public override void Deselect()
{
Selected = false;
_selectionPoint = null;
_dragPoints?.Clear();
}
/// <inheritdoc />
public override void MouseMove(int x, int y, int changeX, int changeY)
{
var rt = new RotateTransform(-RotationAngle, _rotationCenter.X, _rotationCenter.Y);
var point = rt.TransformPoint(x, y);
//See if we're resizing
if (_selectionPoint != null && (_selectionPoint.PointType == PreviewPoint.PointTypes.Size || _selectionPoint.PointType == PreviewPoint.PointTypes.Rotate))
{
//We are resizing, so figure our change and scale the points.
if (_selectionPoint == _dragPoints[0])
{
//Top Left
var newHeight = Bounds.Height + (Bounds.TopLeft.Y - point.Y);
var newWidth = Bounds.Width + (Bounds.TopLeft.X - point.X);
var minSize = ClampSize();
var scaleY = newHeight > minSize ? newHeight / Bounds.Height : 1;
var scaleX = newWidth > minSize ? newWidth / Bounds.Width : 1;
if (Control.ModifierKeys == Keys.Shift)
{
scaleX = scaleY = MaxValue(scaleX, scaleY);
}
Layout();
Scale(scaleX, scaleY, ZoomCoordToOriginal(_dragPoints[2].X), ZoomCoordToOriginal(_dragPoints[2].Y));
_selectionPoint = _dragPoints[0];
}
else if (_selectionPoint == _dragPoints[1])
{
//Top Right
var newHeight = Bounds.Height + (Bounds.TopRight.Y - point.Y);
var newWidth = Bounds.Width + (point.X - Bounds.TopRight.X);
var minSize = ClampSize();
var scaleY = newHeight > minSize ? newHeight / Bounds.Height : 1;
var scaleX = newWidth > minSize ? newWidth / Bounds.Width : 1;
if (Control.ModifierKeys == Keys.Shift)
{
scaleX = scaleY = MaxValue(scaleX, scaleY);
}
Scale(scaleX, scaleY, ZoomCoordToOriginal(_dragPoints[3].X), ZoomCoordToOriginal(_dragPoints[3].Y));
Layout();
_selectionPoint = _dragPoints[1];
}
else if (_selectionPoint == _dragPoints[2])
{
//Bottom Right
var newHeight = Bounds.Height + (point.Y - Bounds.BottomRight.Y);
var newWidth = Bounds.Width + (point.X - Bounds.BottomRight.X);
var minSize = ClampSize();
var scaleY = newHeight > minSize ? newHeight / Bounds.Height:1;
var scaleX = newWidth > minSize ? newWidth / Bounds.Width:1;
if (Control.ModifierKeys == Keys.Shift)
{
scaleX = scaleY = MaxValue(scaleX, scaleY);
}
Scale(scaleX, scaleY, ZoomCoordToOriginal(_dragPoints[0].X), ZoomCoordToOriginal(_dragPoints[0].Y));
Layout();
_selectionPoint = _dragPoints[2];
}
else if (_selectionPoint == _dragPoints[3])
{
//Bottom Left
var newHeight = Bounds.Height + (point.Y - Bounds.BottomLeft.Y);
var newWidth = Bounds.Width + (Bounds.BottomLeft.X - point.X);
var minSize = ClampSize();
var scaleY = newHeight > minSize ? newHeight / Bounds.Height : 1;
var scaleX = newWidth > minSize ? newWidth / Bounds.Width : 1;
if (Control.ModifierKeys == Keys.Shift)
{
scaleX = scaleY = MaxValue(scaleX, scaleY);
}
Scale(scaleX, scaleY, ZoomCoordToOriginal(_dragPoints[1].X), ZoomCoordToOriginal(_dragPoints[1].Y));
Layout();
_selectionPoint = _dragPoints[3];
}
else if (_selectionPoint == _dragPoints[4])
{
//We are rotating!
double angle = GetAngle(_rotationCenter, new Point(x, y));
// Use Detents of 0, 45, 90, 135, 180, 225, 270 and 315 when holding the Shift modifier key down.
if (Control.ModifierKeys == Keys.Control)
{
if (angle >= 22.5 && angle < 67.5)
{
angle = 45;
}
else if (angle >= 67.5 && angle < 112.5)
{
angle = 90;
}
else if (angle >= 112.5 && angle < 157.5)
{
angle = 135;
}
else if (angle >= 157.5 && angle < 202.5)
{
angle = 180;
}
else if (angle >= 202.5 && angle < 247.5)
{
angle = 225;
}
else if (angle >= 247.5 && angle < 292.5)
{
angle = 270;
}
else if (angle >= 292.5 && angle < 337.5)
{
angle = 315;
}
else if (angle >= 337.5 || angle < 22.5)
{
angle = 0;
}
}
RotationAngle = (int)Math.Round(angle, MidpointRounding.AwayFromZero);
_selectionPoint = _dragPoints[4];
}
}
else
{
var newX = _p1Start.X + changeX;
var newY = _p1Start.Y + changeY;
MoveTo(newX, newY);
}
}