public void Execute()
{
_itemResized.MoveHandleTo(_newPoint, _handle);
}
/// <summary>
/// Mouse is moved.
/// None button is pressed, or left button is pressed.
/// </summary>
/// <param name="drawArea"></param>
/// <param name="e"></param>
public override void OnMouseMove(DrawArea drawArea, MouseEventArgs e)
{
Point point = new Point(e.X, e.Y);
Point oldPoint = lastPoint;
wasMove = true;
// 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 (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
int dx = e.X - lastPoint.X;
int dy = e.Y - lastPoint.Y;
lastPoint.X = e.X;
lastPoint.Y = e.Y;
// resize
if (selectMode == SelectionMode.Size)
{
if (resizedObject != null)
{
resizedObject.MoveHandleTo(point, resizedObjectHandle);
drawArea.SetDirty();
drawArea.Refresh();
}
}
// move
if (selectMode == SelectionMode.Move)
{
List <DrawObject> selectList = new List <DrawObject>();
int n = drawArea.GraphicsList.Count;
for (int i = 0; i < n; i++)
{
if (drawArea.GraphicsList[i].Selected)
{
drawArea.GraphicsList.SelectAlist(drawArea.GraphicsList[i].TagIDBase);
selectList.Add(drawArea.GraphicsList[i]);
}
}
foreach (DrawObject o in selectList)
{
o.Move(dx, dy);
}
drawArea.Cursor = Cursors.SizeAll;
drawArea.SetDirty();
drawArea.Refresh();
}
if (selectMode == SelectionMode.NetSelection)
{
// Remove old selection rectangle
ControlPaint.DrawReversibleFrame(
drawArea.RectangleToScreen(DrawRectangle.GetNormalizedRectangle(startPoint, oldPoint)),
Color.Black,
FrameStyle.Dashed);
// Draw new selection rectangle
ControlPaint.DrawReversibleFrame(
drawArea.RectangleToScreen(DrawRectangle.GetNormalizedRectangle(startPoint, point)),
Color.Black,
FrameStyle.Dashed);
return;
}
}
/// <summary>
/// 鼠标移动。
/// 无按钮按下，OT左按钮按下。
/// </summary>
public override void OnMouseMove(DrawArea drawArea, MouseEventArgs e)
{
var point = new Point(e.X, e.Y);
// 不按鼠标按钮时设置光标
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;
}
bool hitknob = drawArea.GraphicsList[i].HitKnobTest(point);
if (hitknob)
{
cursor = drawArea.GraphicsList[i].GetKnodCursor();
}
}
if (cursor == null)
{
cursor = Cursors.Default;
}
drawArea.Cursor = cursor;
return;
}
if (e.Button != MouseButtons.Left)
{
return;
}
// 查找上一个位置和当前位置之间的差异
float dx = e.X - _lastPoint.X;
float dy = e.Y - _lastPoint.Y;
_lastPoint.X = e.X;
_lastPoint.Y = e.Y;
// 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.Rotate)
{
if (_rerotateObject != null)
{
//_rerotateObject.RotateKnobTo(point);
_rerotateObject.Rotate((dx + dy) / 2);
drawArea.SetDirty();
drawArea.Refresh();
}
}
if (_selectMode == SelectionMode.NetSelection)
{
drawArea.NetRectangle = DrawRectangleObject.GetNormalizedRectangle(_startPoint, _lastPoint);
drawArea.Refresh();
return;
}
}