public DXViewPort()
{
try
{
// required
InitializeComponent();
ReCenter();
DeviceManager.Instance.Viewport = this;
DeviceManager.Instance.StartDirect3D();
// set up viewport cameras
pic3DTopLeft.Camera = CameraFactory.Instance.CreateCamera(PredefinedCameras.Top);
pic3DBotLeft.Camera = CameraFactory.Instance.CreateCamera(PredefinedCameras.Left);
pic3DTopRight.Camera = CameraFactory.Instance.CreateCamera(PredefinedCameras.Front);
pic3DBotRight.Camera = CameraFactory.Instance.CreateCamera(PredefinedCameras.Perspective);
pic3DBotRight.DrawMode = DrawMode.solid;
}
catch (Exception e)
{
MessageBox.Show("The dxViewPort is broken. (Details below.)\n\n" + e.Message +
"\n\n\n" + e.StackTrace, "dxViewPort NRE ERROR! (probably)", MessageBoxButtons.AbortRetryIgnore,
MessageBoxIcon.Hand);
}
try
{
// render to display changes
DeviceManager.UpdateViews();
}
catch
{
// ignore failed render
}
}
protected override void OnMouseMove(System.Windows.Forms.MouseEventArgs e)
{
if (!GetAsyncKeyState(ArcBall.CameraControlKey) && (e.Button == MouseButtons.Left) && selectedObjects.Count != 0)
{
if (_editMode == EditMode.Rotate)
{
Vector3 direction = camera.TargetPoint - camera.EyePosition;
Vector3 horizontal = Vector3.Cross(direction, camera.UpVector);
Vector3 upVector = camera.UpVector;
horizontal.Normalize();
upVector.Normalize();
float rotateX = (0.5f * (mouseDownX - e.X)) * upVector.X +
(0.5f * (e.Y - mouseDownY)) * horizontal.X + _startRotation.X;
float rotateY = (0.5f * (mouseDownX - e.X)) * upVector.Y +
(0.5f * (e.Y - mouseDownY)) * horizontal.Y + _startRotation.Y;
float rotateZ = (0.5f * (mouseDownX - e.X)) * upVector.Z +
(0.5f * (e.Y - mouseDownY)) * horizontal.Z + _startRotation.Z;
Midget.Events.EventFactory.Instance.GenerateTransformationRequestEvent(this, selectedObjects,
new AxisValue(rotateX, rotateY, rotateZ),
Midget.Events.Object.Transformation.Transformation.Rotate);
mouseDownX = e.X;
mouseDownY = e.Y;
dm.UpdateViews();
}
else if (_editMode == EditMode.Move)
{
// our picking
Vector3 pickRayOrigin = new Vector3();
Vector3 pickRayDir = new Vector3();
Vector3 pickRayOriginNew = new Vector3();
Vector3 pickRayDirNew = new Vector3();
Vector3 direction = camera.TargetPoint - camera.EyePosition;
Vector3 horizontal = Vector3.Cross(direction, camera.UpVector);
Vector3 upVector = camera.UpVector;
horizontal.Normalize();
upVector.Normalize();
// grab the last selected object
IObject3D selObj = (IObject3D)selectedObjects[selectedObjects.Count - 1];
// original mouse position
camera.UnProjectCoordinates(mouseDownX, mouseDownY, this.Width,
this.Height, ref pickRayOrigin, ref pickRayDir);
// new mouse position
camera.UnProjectCoordinates(e.X,
e.Y, this.Width,
this.Height, ref pickRayOriginNew, ref pickRayDirNew);
// transform by world and object model space
pickRayOrigin.TransformCoordinate(Matrix.Invert(camera.WorldMatrix));
pickRayOriginNew.TransformCoordinate(Matrix.Invert(camera.WorldMatrix));
// find the movement vector
Vector3 result = pickRayOriginNew - pickRayOrigin;
// pretty crappy compensation
if (this.Camera is PerspectiveMidgetCamera)
{
result *= 10.0f;
}
// generate an axis value to move by
AxisValue axes = new AxisValue(
selObj.Translation.X + result.X,
selObj.Translation.Y + result.Y,
selObj.Translation.Z + result.Z);
Midget.Events.EventFactory.Instance.GenerateTransformationRequestEvent(this, selectedObjects,
axes,
Midget.Events.Object.Transformation.Transformation.Translate);
mouseDownX = e.X;
mouseDownY = e.Y;
dm.UpdateViews();
}
else if (_editMode == EditMode.Scale)
{
float scaleX = 0.05f * (mouseDownX - e.X) + _startScaling.X;
float scaleY = 0.05f * (mouseDownY - e.Y) + _startScaling.Y;
Midget.Events.EventFactory.Instance.GenerateTransformationRequestEvent(this, selectedObjects,
new AxisValue(scaleY, scaleY, scaleY),
Midget.Events.Object.Transformation.Transformation.Scale);
mouseDownX = e.X;
mouseDownY = e.Y;
dm.UpdateViews();
}
}
base.OnMouseMove(e);
}
