private IClickable3D GetClosestObject(Ray pointer)
{
IClickable3D closestClickable = null;
float closest = float.PositiveInfinity;
foreach (var o in objects)
{
if (o is IClickable3D)
{
var clickable = o as IClickable3D;
float distance = clickable.DistanceToObject(pointer);
if (distance < closest)
{
closestClickable = clickable;
closest = distance;
}
}
}
if (FilterSelectable(closestClickable))
{
closestClickable.MouseHover(); // TODO: find a better way to handle hover indication...
return(closestClickable);
}
return(viewport as IClickable3D);
}
void HandleMouseDown(object sender, MouseEventArgs e)
{
if (clickedObject != null)
{
// If something's already clicked, don't allow selecting other items.
// This will force a mouse up in the client area.
return;
}
mouseDownLocation = e.Location;
Ray pointer = viewport.GetPointerRay(e.Location);
clickedObject = GetClosestObject(pointer);
if (e.Button == System.Windows.Forms.MouseButtons.Right)
{
mouseRDown = true;
viewport.BeginRotate();
return;
}
else if (e.Button != System.Windows.Forms.MouseButtons.Left)
{
return;
}
clickedObject.MouseDown(pointer);
this.Invalidate();
}
void HandleMouseMove(object sender, MouseEventArgs e)
{
hoveredObject = null;
if (mouseRDown)
{
Point mouseDelta = new Point(e.Location.X - mouseDownLocation.X, e.Location.Y - mouseDownLocation.Y);
viewport.ViewportRotate(mouseDelta.X, mouseDelta.Y);
}
else
{
Ray pointer = viewport.GetPointerRay(e.Location);
if (clickedObject != null)
{
clickedObject.MouseMove(pointer);
}
else
{
IClickable3D hovered = GetClosestObject(pointer);
if (hovered != null)
{
hoveredObject = hovered;
}
}
}
this.Invalidate();
}
void HandleMouseUp(object sender, MouseEventArgs e)
{
// Display a context menu?
if (mouseRDown)
{
if (mouseDownLocation == e.Location)
{
if (clickedObject != null && clickedObject is TriangleMeshGUI)
{
System.Windows.Forms.ContextMenu menu = new ContextMenu();
var item = new MenuItem("Delete", new EventHandler(objectDeleteClicked));
item.Tag = clickedObject;
menu.MenuItems.Add(item);
menu.Show(this, e.Location);
}
}
}
mouseRDown = false;
if (clickedObject != null)
{
Ray pointer = viewport.GetPointerRay(e.Location);
clickedObject.MouseUp(pointer);
clickedObject = null;
}
}
private void objectSetAsBottomFaceClicked(object sender, EventArgs e)
{
var item = sender as MenuItem;
if (item != null)
{
IClickable3D toModify = item.Tag as IClickable3D;
var triangleMesh = item.Tag as TriangleMeshGUI;
if (triangleMesh != null)
{
Ray pointer = viewport.GetPointerRay(mouseDownLocation);
// If we rotate the object, tabs will become invalid.
foreach (var tab in triangleMesh.Tabs)
{
objects.Remove(tab);
}
triangleMesh.SetClickedFaceAsBottom(pointer);
foreach (var tab in triangleMesh.Tabs)
{
objects.Add(tab);
}
}
}
}
internal void DeleteSelectedObjected()
{
if (clickedObject != null)
{
objects.RemoveAll(c => c == clickedObject);
}
clickedObject = null;
}
void objectDeleteClicked(object sender, EventArgs e)
{
var item = sender as MenuItem;
if (item != null)
{
IClickable3D toRemove = item.Tag as IClickable3D;
if (toRemove != null)
{
if (toRemove is TriangleMeshGUI)
{
foreach (var tab in (toRemove as TriangleMeshGUI).Tabs)
{
objects.RemoveAll(o => o == tab);
}
}
objects.RemoveAll(o => o == toRemove);
}
}
}
public void MouseMove(Vector2 screen_location)
{
p = ComputeMouseTarget(screen_location);
if (isMouseRDown)
{
//wasMouseDragged = true;
// Rotate Scene
// Rotate about the point in the center of the screen
// location is mouse position on the screen
// Screen is 45 degrees up/down
Rectangle r = parent.ClientRectangle;
if (r.Height == 0)
{
r.Height = 1;
}
Vector2 center = new Vector2(r.Width / 2, r.Height / 2);
viewMatrix = mouseDownMatrix;
Vector3 point = this.ComputeMouseTarget(center);
float y = -screen_location.Y / (float)r.Height + 0.5f;
float x = screen_location.X / (float)r.Width - 0.5f;
Vector2 l2 = mouseDownLocation * 1000;
float y2 = -l2.Y / (float)r.Height + 0.5f;
float x2 = l2.X / (float)r.Width - 0.5f;
float aspect = AspectRatio;
//Console.WriteLine("pos = {0}, {1}", (x2 - x) * aspect, y2 - y);
x = (x2 - x) * aspect;
y = (y2 - y);
x = x * 4;
y = y * 4;
viewMatrix = Matrix4.Mult(Matrix4.CreateTranslation(point), mouseDownMatrix);
viewMatrix = Matrix4.Mult(Matrix4.CreateRotationZ(-x), viewMatrix);
Matrix4 m = viewMatrix;
m.Invert();
Vector3 left = new Vector3(m.Row0.X, m.Row0.Y, m.Row0.Z);
viewMatrix = Matrix4.Mult(Matrix4.CreateFromAxisAngle(left, y), viewMatrix);
viewMatrix = Matrix4.Mult(Matrix4.CreateTranslation(-point), viewMatrix);
}
else if (isMouseLDown)
{
}
else
{
// Some hacky stuff to pass the mouse location to sub-objects
foreach (Object o in this.objects)
{
if (o is IClickable3D)
{
Vector3 location = this.CameraPosition;
Vector3 t = ComputeMouseTarget(screen_location);
Vector3 direction = t - location;
//Console.WriteLine("Camera Forward {0}, Pos = {1}", direction, location);
direction.Normalize();
IClickable3D c = o as IClickable3D;
//Vector3 target = this.ComputeMouseTarget(screen_location);
//Vector2 t = new Vector2 (target.X, target.Y) * 1000;
c.IsPointOnObject(location * 1000, direction);
}
}
}
//Console.WriteLine("Mouse Position = {0}", p);
}
void HandleMouseUp(object sender, MouseEventArgs e)
{
// Display a context menu?
if (mouseRDown)
{
if (mouseDownLocation == e.Location)
{
if (clickedObject != null && clickedObject is TriangleMeshGUI)
{
System.Windows.Forms.ContextMenu menu = new ContextMenu();
var item = new MenuItem("Delete", new EventHandler(objectDeleteClicked));
item.Tag = clickedObject;
menu.MenuItems.Add(item);
menu.Show(this, e.Location);
}
}
}
mouseRDown = false;
if (clickedObject != null)
{
Ray pointer = viewport.GetPointerRay(e.Location);
clickedObject.MouseUp(pointer);
clickedObject = null;
}
}
void HandleMouseMove(object sender, MouseEventArgs e)
{
hoveredObject = null;
if (mouseRDown)
{
Point mouseDelta = new Point(e.Location.X - mouseDownLocation.X, e.Location.Y - mouseDownLocation.Y);
viewport.ViewportRotate(mouseDelta.X, mouseDelta.Y);
}
else
{
Ray pointer = viewport.GetPointerRay(e.Location);
if (clickedObject != null)
{
clickedObject.MouseMove(pointer);
}
else
{
IClickable3D hovered = GetClosestObject(pointer);
if (hovered != null)
{
hoveredObject = hovered;
}
}
}
this.Invalidate();
}
void HandleMouseDown(object sender, MouseEventArgs e)
{
if (clickedObject != null)
{
// If something's already clicked, don't allow selecting other items.
// This will force a mouse up in the client area.
return;
}
mouseDownLocation = e.Location;
Ray pointer = viewport.GetPointerRay(e.Location);
clickedObject = GetClosestObject(pointer);
if (e.Button == System.Windows.Forms.MouseButtons.Right)
{
mouseRDown = true;
viewport.BeginRotate();
return;
}
else if (e.Button != System.Windows.Forms.MouseButtons.Left)
{
return;
}
clickedObject.MouseDown(pointer);
this.Invalidate();
}
internal void DeleteSelectedObjected()
{
if (clickedObject != null)
{
objects.RemoveAll(c => c == clickedObject);
}
clickedObject = null;
}
