public ScaleMatrixTopControl(IObject3DControlContext context)
: base(context)
{
theme = AppContext.Theme;
zValueDisplayInfo = new InlineEditControl()
{
ForceHide = () =>
{
// if the selection changes
if (RootSelection != activeSelectedItem)
{
return(true);
}
// if another control gets a hover
if (Object3DControlContext.HoveredObject3DControl != this &&
Object3DControlContext.HoveredObject3DControl != null)
{
return(true);
}
// if we clicked on the control
if (hadClickOnControl)
{
return(false);
}
return(false);
},
GetDisplayString = (value) => "{0:0.0}".FormatWith(value)
};
zValueDisplayInfo.VisibleChanged += (s, e) =>
{
if (!zValueDisplayInfo.Visible)
{
hadClickOnControl = false;
}
};
zValueDisplayInfo.EditComplete += (s, e) =>
{
var selectedItem = activeSelectedItem;
Matrix4X4 startingTransform = selectedItem.Matrix;
var originalSelectedBounds = selectedItem.GetAxisAlignedBoundingBox();
Vector3 topPosition = GetTopPosition(selectedItem);
var lockedBottom = new Vector3(topPosition.X, topPosition.Y, originalSelectedBounds.MinXYZ.Z);
Vector3 newSize = Vector3.Zero;
newSize.Z = zValueDisplayInfo.Value;
Vector3 scaleAmount = ScaleMatrixCornerControl.GetScalingConsideringShiftKey(originalSelectedBounds, mouseDownSelectedBounds, newSize, Object3DControlContext.GuiSurface.ModifierKeys);
var scale = Matrix4X4.CreateScale(scaleAmount);
selectedItem.Matrix = selectedItem.ApplyAtBoundsCenter(scale);
// and keep the locked edge in place
AxisAlignedBoundingBox scaledSelectedBounds = selectedItem.GetAxisAlignedBoundingBox();
var newLockedBottom = new Vector3(topPosition.X, topPosition.Y, scaledSelectedBounds.MinXYZ.Z);
selectedItem.Matrix *= Matrix4X4.CreateTranslation(lockedBottom - newLockedBottom);
Invalidate();
Object3DControlContext.Scene.AddTransformSnapshot(startingTransform);
};
Object3DControlContext.GuiSurface.AddChild(zValueDisplayInfo);
DrawOnTop = true;
topScaleMesh = PlatonicSolids.CreateCube(arrowSize, arrowSize, arrowSize);
CollisionVolume = topScaleMesh.CreateBVHData();
Object3DControlContext.GuiSurface.BeforeDraw += Object3DControl_BeforeDraw;
}
public override void OnMouseMove(Mouse3DEventArgs mouseEvent3D, bool mouseIsOver)
{
var selectedItem = RootSelection;
activeSelectedItem = selectedItem;
if (MouseIsOver)
{
zValueDisplayInfo.Visible = true;
}
else if (!hadClickOnControl)
{
zValueDisplayInfo.Visible = false;
}
if (MouseDownOnControl)
{
IntersectInfo info = hitPlane.GetClosestIntersection(mouseEvent3D.MouseRay);
if (info != null &&
selectedItem != null)
{
AxisAlignedBoundingBox originalSelectedBounds = selectedItem.GetAxisAlignedBoundingBox();
Vector3 delta = info.HitPosition - initialHitPosition;
Vector3 newPosition = originalPointToMove + delta;
if (Object3DControlContext.SnapGridDistance > 0)
{
// snap this position to the grid
double snapGridDistance = Object3DControlContext.SnapGridDistance;
// snap this position to the grid
newPosition.Z = ((int)((newPosition.Z / snapGridDistance) + .5)) * snapGridDistance;
}
Vector3 topPosition = GetTopPosition(selectedItem);
var lockedBottom = new Vector3(topPosition.X, topPosition.Y, originalSelectedBounds.MinXYZ.Z);
Vector3 newSize = Vector3.Zero;
newSize.Z = newPosition.Z - lockedBottom.Z;
// scale it
Vector3 scaleAmount = ScaleMatrixCornerControl.GetScalingConsideringShiftKey(originalSelectedBounds, mouseDownSelectedBounds, newSize, Object3DControlContext.GuiSurface.ModifierKeys);
var scale = Matrix4X4.CreateScale(scaleAmount);
selectedItem.Matrix = selectedItem.ApplyAtBoundsCenter(scale);
// and keep the locked edge in place
AxisAlignedBoundingBox scaledSelectedBounds = selectedItem.GetAxisAlignedBoundingBox();
var newLockedBottom = new Vector3(topPosition.X, topPosition.Y, scaledSelectedBounds.MinXYZ.Z);
selectedItem.Matrix *= Matrix4X4.CreateTranslation(lockedBottom - newLockedBottom);
Invalidate();
}
}
base.OnMouseMove(mouseEvent3D, mouseIsOver);
}
