private void HandleRightMouseButtonInput(GameTime gameTime, MouseState mouseState)
{
if (mouseState.RightButton == ButtonState.Pressed)
{
if ((mouseActivityState & MouseActivityState.MousePan) != MouseActivityState.MousePan) //Mouse down event
{
mouseActivityState |= MouseActivityState.MousePan;
mousePanStart = GetNormalizedMouseCoordinates(mouseState);
}
else //Mouse move while middle down
{
mousePanEnd = GetNormalizedMouseCoordinates(mouseState);
var panAmount = (mousePanStart - mousePanEnd) * this.PanSpeed;
if (panAmount.LengthSquared() > 0)
{
this.MoveTo(panAmount);
mousePanStart = mousePanEnd;
}
}
}
else
{
mouseActivityState &= ~MouseActivityState.MousePan;
}
}
private void HandleLeftMouseButtonInput(GameTime gameTime, MouseState mouseState)
{
if (mouseState.LeftButton == ButtonState.Pressed)
{
if ((mouseActivityState & MouseActivityState.MouseRotate) != MouseActivityState.MouseRotate) //Mouse down event
{
mouseActivityState |= MouseActivityState.MouseRotate;
var mouseVector = GetMouseArcBallVector(mouseState);
mouseRotationStart = object3D.GetMouseProjectionOnArcBall(mouseVector, ArcBallOrigin);
}
else //Mouse move while left down
{
var mouseVector = GetMouseArcBallVector(mouseState);
mouseRotationEnd = object3D.GetMouseProjectionOnArcBall(mouseVector, ArcBallOrigin);
var rotatedMouseRotationEnd = object3D.Rotate(mouseRotationStart, mouseRotationEnd, this.ArcBallOrigin, this.RotateSpeed);
if (rotatedMouseRotationEnd != null)
{
mouseRotationEnd = rotatedMouseRotationEnd.Value;
mouseRotationStart = mouseRotationEnd;
}
}
}
else
{
mouseActivityState &= ~MouseActivityState.MouseRotate;
}
}
private void HandleMiddleMouseButtonInput(GameTime gameTime, MouseState mouseState)
{
if (mouseState.MiddleButton == ButtonState.Pressed)
{
if ((mouseActivityState & MouseActivityState.MouseZoom) != MouseActivityState.MouseZoom) //Mouse down event
{
mouseActivityState |= MouseActivityState.MouseZoom;
mouseZoomStart = mouseState.Y;
}
else //Mouse move while middle down
{
mouseZoomEnd = mouseState.Y;
var zoomFactor = (float)Math.Pow(MaxZoom, (mouseZoomEnd - mouseZoomStart) / screenHeight) * this.ZoomSpeed;
if (Math.Abs(zoomFactor - 0) > 1E-3)
{
object3D.Zoom(zoomFactor, ArcBallOrigin);
mouseZoomStart = mouseZoomEnd;
}
}
}
else
{
mouseActivityState &= ~MouseActivityState.MouseZoom;
}
}
private void HandleRightMouseButtonInput(GameTime gameTime, MouseState mouseState)
{
if (mouseState.RightButton == ButtonState.Pressed)
{
if ((mouseActivityState & MouseActivityState.MousePan) != MouseActivityState.MousePan) //Mouse down event
{
mouseActivityState |= MouseActivityState.MousePan;
mousePanStart = GetNormalizedMouseCoordinates(mouseState);
}
else //Mouse move while middle down
{
mousePanEnd = GetNormalizedMouseCoordinates(mouseState);
var panAmount = (mousePanStart - mousePanEnd) * this.PanSpeed;
if (panAmount.LengthSquared() > 0)
{
this.MoveTo(panAmount);
mousePanStart = mousePanEnd;
}
}
}
else
mouseActivityState &= ~MouseActivityState.MousePan;
}
private void HandleMiddleMouseButtonInput(GameTime gameTime, MouseState mouseState)
{
if (mouseState.MiddleButton == ButtonState.Pressed)
{
if ((mouseActivityState & MouseActivityState.MouseZoom) != MouseActivityState.MouseZoom) //Mouse down event
{
mouseActivityState |= MouseActivityState.MouseZoom;
mouseZoomStart = mouseState.Y;
}
else //Mouse move while middle down
{
mouseZoomEnd = mouseState.Y;
var zoomFactor = (float) Math.Pow(MaxZoom, (mouseZoomEnd - mouseZoomStart) / screenHeight) * this.ZoomSpeed;
if (Math.Abs(zoomFactor - 0) > 1E-3)
{
object3D.Zoom(zoomFactor, ArcBallOrigin);
mouseZoomStart = mouseZoomEnd;
}
}
}
else
mouseActivityState &= ~MouseActivityState.MouseZoom;
}
private void HandleLeftMouseButtonInput(GameTime gameTime, MouseState mouseState)
{
if (mouseState.LeftButton == ButtonState.Pressed)
{
if ((mouseActivityState & MouseActivityState.MouseRotate) != MouseActivityState.MouseRotate) //Mouse down event
{
mouseActivityState |= MouseActivityState.MouseRotate;
var mouseVector = GetMouseArcBallVector(mouseState);
mouseRotationStart = object3D.GetMouseProjectionOnArcBall(mouseVector, ArcBallOrigin);
}
else //Mouse move while left down
{
var mouseVector = GetMouseArcBallVector(mouseState);
mouseRotationEnd = object3D.GetMouseProjectionOnArcBall(mouseVector, ArcBallOrigin);
var rotatedMouseRotationEnd = object3D.Rotate(mouseRotationStart, mouseRotationEnd, this.ArcBallOrigin, this.RotateSpeed);
if (rotatedMouseRotationEnd != null)
{
mouseRotationEnd = rotatedMouseRotationEnd.Value;
mouseRotationStart = mouseRotationEnd;
}
}
}
else
mouseActivityState &= ~MouseActivityState.MouseRotate;
}
