/// <summary>鼠标移动事件</summary>
public override void OnMouseMove(Palette palette, MouseEventArgs e)
{
Point p = new Point(e.X, e.Y);
if (e.Button == MouseButtons.None)
{
Cursor cursor = null;
if (palette.graphics != null)
{
for (int i = palette.graphics.Count - 1; i >= 0; i--)
{
int n = palette.graphics[i].HitTest(p);
if (n == 0)
{
cursor = Cursors.Hand;
}
if (n > 0)
{
cursor = palette.graphics[i].GetHandleCursor(n);
break;
}
}
}
if (cursor == null)
{
int x = 0;
for (int j = palette.graphics.Count - 1; j >= 0; j--)
{
if (palette.graphics[j].Selected)
{
x++;
}
}
if (x == 1)
{
for (int j = palette.graphics.Count - 1; j >= 0; j--)
{
if (palette.graphics[j].Selected && palette.graphics[j].PointInObject(p))
{
cursor = Cursors.NoMove2D;
}
}
}
}
palette.Cursor = cursor;
return;
}
if (e.Button != MouseButtons.Left)
{
return;
}
int dx = p.X - lastPoint.X;
int dy = p.Y - lastPoint.Y;
lastPoint.X = p.X;
lastPoint.Y = p.Y;
if (selectMode == SelectionMode.Size)
{
if (resizedObject != null)
{
resizedObject.MoveHandleTo(p, resizedObjectHandle);
palette.Refresh();
}
}
if (selectMode == SelectionMode.Move)
{
int n = palette.graphics.SelectionCount;
for (int i = n - 1; i >= 0; i--)
{
palette.graphics.GetSelectedObject(i).Move(dx, dy);
}
palette.Cursor = Cursors.SizeAll;
palette.Refresh();
}
if (selectMode == SelectionMode.NetSelection)
{
palette.NetRectangle = CC.GetNormalizedRectangle(startPoint, lastPoint);
palette.Refresh();
return;
}
}
public override void OnMouseDown(Palette palette, MouseEventArgs e)
{
CC.isToolPoint = true;
Point p = new Point(e.X, e.Y);
selectMode = SelectionMode.None;
int n = palette.graphics.SelectionCount;
for (int i = n - 1; i >= 0; i--)
{
DrawObject w = palette.graphics.GetSelectedObject(i);
int handleNumber = w.HitTest(p);
if (handleNumber > 0)
{
selectMode = SelectionMode.Size;
resizedObject = w;
resizedObjectHandle = handleNumber;
palette.graphics.UnselectAll();
w.Selected = true;
break;
}
}
if (selectMode == SelectionMode.None)
{
int n1 = palette.graphics.Count;
DrawObject w = null;
//查找是否有对象被选中
for (int i = n1 - 1; i >= 0; i--)
{
if (palette.graphics[i].HitTest(p) == 0)
{
w = palette.graphics[i];
break;
}
}
if (w != null)
{
selectMode = SelectionMode.Move;
if ((Control.ModifierKeys & Keys.Control) == 0 && !w.Selected)
{
palette.graphics.UnselectAll();
}
w.Selected = true;
palette.Cursor = Cursors.SizeAll;
}
}
if (selectMode == SelectionMode.None)
{
if ((Control.ModifierKeys & Keys.Control) == 0)
{
palette.graphics.UnselectAll();
}
selectMode = SelectionMode.NetSelection;
palette.IsDrawNetRectangle = true;
}
lastPoint.X = p.X;
lastPoint.Y = p.Y;
startPoint.X = p.X;
startPoint.Y = p.Y;
palette.Capture = true;
palette.NetRectangle = CC.GetNormalizedRectangle(startPoint, lastPoint);
palette.Refresh();
}