public override void OnMouseDown(MouseEvent3DArgs mouseEvent3D)
{
InteractionContext.Scene.DrawSelection = false;
IObject3D selectedItem = RootSelection;
if (mouseEvent3D.info != null && selectedItem != null)
{
SelectedItemOnMouseDown = selectedItem;
angleTextControl.Visible = true;
var selectedObject = SelectedItemOnMouseDown;
AxisAlignedBoundingBox currentSelectedBounds = selectedObject.GetAxisAlignedBoundingBox(Matrix4X4.Identity);
var selectedObjectRotationCenter = currentSelectedBounds.Center;
Vector3 cornerForAxis = GetCornerPosition(selectedObject);
// move the rotation center to the correct side of the bounding box
selectedObjectRotationCenter[RotationAxis] = cornerForAxis[RotationAxis];
mouseDownInfo = new Mouse3DInfo(
mouseEvent3D.info.HitPosition,
selectedObject.Matrix,
selectedObjectRotationCenter,
GetControlCenter(selectedObject),
RotationAxis
);
// Get move data updated
lastSnappedRotation = 0;
SnappedRotationAngle = 0;
rotatingCW = true;
mouseMoveInfo = mouseDownInfo;
InteractionContext.Scene.ShowSelectionShadow = false;
mouseMoveInfo = new Mouse3DInfo(
mouseEvent3D.info.HitPosition,
selectedObject.Matrix,
selectedObjectRotationCenter,
GetControlCenter(selectedObject),
RotationAxis
);
}
base.OnMouseDown(mouseEvent3D);
}
public override void CancelOpperation()
{
IObject3D selectedItem = RootSelection;
if (selectedItem != null &&
MouseDownOnControl &&
mouseDownInfo != null)
{
selectedItem.Matrix = mouseDownInfo.SelectedObjectTransform;
MouseDownOnControl = false;
MouseOver = false;
mouseDownInfo = null;
mouseMoveInfo = null;
InteractionContext.Scene.DrawSelection = true;
InteractionContext.Scene.ShowSelectionShadow = true;
}
base.CancelOpperation();
}
public RotateCornerControl(IInteractionVolumeContext context, int axisIndex)
: base(context)
{
angleTextControl = new InlineEditControl()
{
ForceHide = ForceHideAngle,
GetDisplayString = (value) => "{0:0.0#}°".FormatWith(value)
};
angleTextControl.VisibleChanged += (s, e) =>
{
mouseDownInfo = null;
Invalidate();
};
InteractionContext.GuiSurface.AddChild(angleTextControl);
angleTextControl.Visible = false;
angleTextControl.EditComplete += (s, e) =>
{
var selectedItem = RootSelection;
if (selectedItem != null &&
mouseDownInfo != null)
{
if (mouseMoveInfo != null)
{
SnappedRotationAngle = MathHelper.DegreesToRadians(angleTextControl.Value);
mouseMoveInfo.AngleOfHit = mouseDownInfo.AngleOfHit + SnappedRotationAngle;
rotatingCW = DeltaAngle(0, SnappedRotationAngle) < 0;
// undo the last rotation
RotateAroundAxis(selectedItem, -lastSnappedRotation);
// rotate it
RotateAroundAxis(selectedItem, SnappedRotationAngle);
Invalidate();
lastSnappedRotation = SnappedRotationAngle;
}
InteractionContext.Scene.AddTransformSnapshot(mouseDownInfo.SelectedObjectTransform);
}
};
this.RotationAxis = axisIndex;
DrawOnTop = true;
rotationHandle = PlatonicSolids.CreateCube(selectCubeSize);
RectangleDouble bounds = arrows.GetBounds();
if (rotationImageWhite == null)
{
rotationImageWhite = new ImageBuffer(64, 64, 32, new BlenderBGRA());
}
VertexSourceApplyTransform arrows2 = new VertexSourceApplyTransform(arrows, Affine.NewTranslation(-bounds.Center)
* Affine.NewScaling(rotationImageWhite.Width / bounds.Width, rotationImageWhite.Height / bounds.Height)
* Affine.NewTranslation(rotationImageWhite.Width / 2, rotationImageWhite.Height / 2));
Graphics2D imageGraphics = rotationImageWhite.NewGraphics2D();
imageGraphics.Clear(new Color(Color.White, 0));
imageGraphics.Render(new FlattenCurves(arrows2), Color.White);
ImageBuffer clearImage = new ImageBuffer(2, 2, 32, new BlenderBGRA());
for (int i = 0; i < rotationHandle.Faces.Count; i++)
{
if (i == 0 || i == 1)
{
rotationHandle.PlaceTextureOnFace(i, rotationImageWhite);
}
else
{
rotationHandle.PlaceTextureOnFace(i, clearImage);
}
}
CollisionVolume = rotationHandle.CreateTraceData();
InteractionContext.GuiSurface.AfterDraw += InteractionLayer_AfterDraw;
}
public override void OnMouseMove(MouseEvent3DArgs mouseEvent3D)
{
IObject3D selectedItem = RootSelection;
if (selectedItem != null)
{
var controlCenter = GetControlCenter(selectedItem);
if (mouseDownInfo != null)
{
controlCenter = mouseDownInfo.ControlCenter;
}
var hitPlane = new PlaneShape(RotationPlanNormal, Vector3Ex.Dot(RotationPlanNormal, controlCenter), null);
IntersectInfo hitOnRotationPlane = hitPlane.GetClosestIntersection(mouseEvent3D.MouseRay);
if (hitOnRotationPlane != null)
{
AxisAlignedBoundingBox currentSelectedBounds = selectedItem.GetAxisAlignedBoundingBox(Matrix4X4.Identity);
var selectedObjectRotationCenter = currentSelectedBounds.Center;
if (mouseDownInfo != null)
{
selectedObjectRotationCenter = mouseDownInfo.SelectedObjectRotationCenter;
}
Vector3 cornerForAxis = GetCornerPosition(selectedItem);
// move the rotation center to the correct side of the bounding box
selectedObjectRotationCenter[RotationAxis] = cornerForAxis[RotationAxis];
mouseMoveInfo = new Mouse3DInfo(
hitOnRotationPlane.HitPosition,
selectedItem.Matrix,
selectedObjectRotationCenter,
controlCenter,
RotationAxis
);
if (MouseDownOnControl &&
mouseDownInfo != null)
{
double rawDeltaRotationAngle = mouseMoveInfo.AngleOfHit - mouseDownInfo.AngleOfHit;
double snapRadians = MathHelper.DegreesToRadians(1);
// snap this position to the grid
if (rawDeltaRotationAngle > 0)
{
SnappedRotationAngle = ((int)((rawDeltaRotationAngle / snapRadians) + .5)) * snapRadians;
}
else
{
SnappedRotationAngle = ((int)((rawDeltaRotationAngle / snapRadians) - .5)) * snapRadians;
}
int snappingIndex = GetSnapIndex(selectedItem, numSnapPoints);
if (snappingIndex != -1)
{
SnappedRotationAngle = snappingIndex * MathHelper.Tau / numSnapPoints;
}
else if (InteractionContext.GuiSurface.ModifierKeys == Keys.Shift)
{
snapRadians = MathHelper.DegreesToRadians(45);
if (rawDeltaRotationAngle > 0)
{
SnappedRotationAngle = ((int)((rawDeltaRotationAngle / snapRadians) + .5)) * snapRadians;
}
else
{
SnappedRotationAngle = ((int)((rawDeltaRotationAngle / snapRadians) - .5)) * snapRadians;
}
}
if (SnappedRotationAngle < 0)
{
SnappedRotationAngle += MathHelper.Tau;
}
// check if this move crosses zero degrees
if (lastSnappedRotation == 0 && SnappedRotationAngle != 0)
{
rotatingCW = DeltaAngle(0, SnappedRotationAngle) < 0;
}
else if ((DeltaAngle(0, SnappedRotationAngle) < 0 &&
DeltaAngle(0, lastSnappedRotation) > 0 &&
Math.Abs(DeltaAngle(0, lastSnappedRotation)) < 1) ||
(DeltaAngle(0, SnappedRotationAngle) > 0 &&
DeltaAngle(0, lastSnappedRotation) < 0 &&
Math.Abs(DeltaAngle(0, lastSnappedRotation)) < 1))
{
// let's figure out which way we are going
rotatingCW = (DeltaAngle(0, SnappedRotationAngle) < 0 && DeltaAngle(0, lastSnappedRotation) > 0);
}
// undo the last rotation
RotateAroundAxis(selectedItem, -lastSnappedRotation);
// rotate it
RotateAroundAxis(selectedItem, SnappedRotationAngle);
lastSnappedRotation = SnappedRotationAngle;
Invalidate();
}
}
}
base.OnMouseMove(mouseEvent3D);
}
