/// <summary>
/// Mouse is moved.
/// None button is pressed, ot left button is pressed.
/// </summary>
/// <param name="drawArea"></param>
/// <param name="e"></param>
public override void OnMouseMove(XnaToolUser drawArea, MouseEventArgs e)
{
var point = new Point(drawArea.MyMouseX, drawArea.MyMouseY);
// set cursor when mouse button is not pressed
if (e.Button == MouseButtons.None)
{
Cursor cursor = null;
for (int i = 0; i < drawArea.GraphicsList.Count; i++)
{
int n = drawArea.GraphicsList[i].HitTest(point);
if (n > 0)
{
cursor = drawArea.GraphicsList[i].GetHandleCursor(n);
break;
}
if (drawArea.GraphicsList[i].HitOnCircumferance)
{
cursor = drawArea.GraphicsList[i].GetOutlineCursor(n);
break;
}
}
if (cursor == null)
{
cursor = Cursors.Default;
}
drawArea.Cursor = cursor;
return;
}
if (e.Button != MouseButtons.Left)
{
return;
}
// Left button is pressed
// Find difference between previous and current position
float dx = drawArea.MyMouseX - _lastPoint.X;
float dy = drawArea.MyMouseY - _lastPoint.Y;
_lastPoint.X = drawArea.MyMouseX;
_lastPoint.Y = drawArea.MyMouseY;
// resize
if (_selectMode == SelectionMode.Size)
{
if (_resizedObject != null)
{
_resizedObject.MoveHandleTo(point, _resizedObjectHandle);
drawArea.SetDirty();
drawArea.Refresh();
}
}
// move
if (_selectMode == SelectionMode.Move)
{
int n = drawArea.GraphicsList.SelectionCount;
for (int i = 0; i < n; i++)
{
drawArea.GraphicsList.GetSelectedObject(i).Move(dx, dy);
}
drawArea.Cursor = Cursors.SizeAll;
drawArea.SetDirty();
drawArea.Refresh();
}
if (_selectMode == SelectionMode.NetSelection)
{
drawArea.NetRectangle = XnaDrawRectangle.GetNormalizedRectangle(_startPoint, _lastPoint);
drawArea.Refresh();
return;
}
}
public void Execute()
{
_itemResized.MoveHandleTo(_newPoint, _handle);
}