void canvas_MouseMove(object sender, MouseEventArgs e)
{
if (isMouseDown)
{
Point point = e.GetPosition(canvas);
Mouse.SetCursor(curAnchorPoint.Cursor);
double curX, curY;
if (Cursors.SizeNS == curAnchorPoint.Cursor)
{
curX = curAnchorPoint.X;
curY = point.Y;
MoveLines(curX, curY);
MoveAnchorPoint(curX, curY);
curAnchorPoint.Move(curX, curY);
}
else if (Cursors.SizeWE == curAnchorPoint.Cursor)
{
MoveLines(point.X, curAnchorPoint.Y);
MoveAnchorPoint(point.X, curAnchorPoint.Y);
curAnchorPoint.Move(point.X, curAnchorPoint.Y);
}
else
{
MoveLines(point.X, point.Y);
MoveAnchorPoint(point.X, point.Y);
curAnchorPoint.Move(point.X, point.Y);
}
}
}
/// <summary>
/// 移动单个点
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="anchorPoint"></param>
private void MoveAnchorPoint(double x, double y, AnchorPoint anchorPoint)
{
double preX = anchorPoint.X;
double preY = anchorPoint.Y;
if (curAnchorPoint.AnchorPointType == AnchorPointType.NS)
{
anchorPoint.Move(anchorPoint.X, y);
MoveRefAnchorPoint(preX, preY, anchorPoint);
}
else if (curAnchorPoint.AnchorPointType == AnchorPointType.WE)
{
anchorPoint.Move(x, anchorPoint.Y);
MoveRefAnchorPoint(preX, preY, anchorPoint);
}
else
{
if (anchorPoint.AnchorPointType == AnchorPointType.NS)
{
anchorPoint.Move(anchorPoint.X, y);
MoveRefAnchorPoint(preX, preY, anchorPoint);
}
else if (anchorPoint.AnchorPointType == AnchorPointType.WE)
{
anchorPoint.Move(x, anchorPoint.Y);
MoveRefAnchorPoint(preX, preY, anchorPoint);
}
else if (curAnchorPoint.AnchorPointType == AnchorPointType.NE)
{
if (anchorPoint.AnchorPointType == AnchorPointType.SE)
{
anchorPoint.Move(anchorPoint.X, y);
}
else if (anchorPoint.AnchorPointType == AnchorPointType.NW)
{
anchorPoint.Move(x, anchorPoint.Y);
}
MoveRefAnchorPoint(preX, preY, x, y, anchorPoint);
MoveRefAnchorPoint(preX, preY, anchorPoint);
}
else if (curAnchorPoint.AnchorPointType == AnchorPointType.SW)
{
if (anchorPoint.AnchorPointType == AnchorPointType.SE)
{
anchorPoint.Move(x, anchorPoint.Y);
}
else if (anchorPoint.AnchorPointType == AnchorPointType.NW)
{
anchorPoint.Move(anchorPoint.X, y);
}
MoveRefAnchorPoint(preX, preY, x, y, anchorPoint);
MoveRefAnchorPoint(preX, preY, anchorPoint);
}
else if (curAnchorPoint.AnchorPointType == AnchorPointType.SE)
{
if (anchorPoint.AnchorPointType == AnchorPointType.SW)
{
anchorPoint.Move(x, anchorPoint.Y);
}
else if (anchorPoint.AnchorPointType == AnchorPointType.NE)
{
anchorPoint.Move(anchorPoint.X, y);
}
MoveRefAnchorPoint(preX, preY, x, y, anchorPoint);
MoveRefAnchorPoint(preX, preY, anchorPoint);
}
else if (curAnchorPoint.AnchorPointType == AnchorPointType.NW)
{
if (anchorPoint.AnchorPointType == AnchorPointType.SW)
{
anchorPoint.Move(anchorPoint.X, y);
}
else if (anchorPoint.AnchorPointType == AnchorPointType.NE)
{
anchorPoint.Move(x, anchorPoint.Y);
}
MoveRefAnchorPoint(preX, preY, x, y, anchorPoint);
MoveRefAnchorPoint(preX, preY, anchorPoint);
}
}
}
/// <summary>
/// 移动单个点
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="anchorPoint"></param>
private void MoveAnchorPoint(double x, double y, AnchorPoint anchorPoint)
{
double preX = anchorPoint.X;
double preY = anchorPoint.Y;
if (curAnchorPoint.AnchorPointType == AnchorPointType.NS)
{
anchorPoint.Move(anchorPoint.X, y);
MoveRefAnchorPoint(preX, preY, anchorPoint);
}
else if (curAnchorPoint.AnchorPointType == AnchorPointType.WE)
{
anchorPoint.Move(x, anchorPoint.Y);
MoveRefAnchorPoint(preX, preY, anchorPoint);
}
else
{
if (anchorPoint.AnchorPointType == AnchorPointType.NS)
{
anchorPoint.Move(anchorPoint.X, y);
MoveRefAnchorPoint(preX, preY, anchorPoint);
}
else if (anchorPoint.AnchorPointType == AnchorPointType.WE)
{
anchorPoint.Move(x, anchorPoint.Y);
MoveRefAnchorPoint(preX, preY, anchorPoint);
}
else if (curAnchorPoint.AnchorPointType == AnchorPointType.NE)
{
if (anchorPoint.AnchorPointType == AnchorPointType.SE)
{
anchorPoint.Move(anchorPoint.X, y);
}
else if (anchorPoint.AnchorPointType == AnchorPointType.NW)
{
anchorPoint.Move(x, anchorPoint.Y);
}
MoveRefAnchorPoint(preX, preY, x, y, anchorPoint);
MoveRefAnchorPoint(preX, preY, anchorPoint);
}
else if (curAnchorPoint.AnchorPointType == AnchorPointType.SW)
{
if (anchorPoint.AnchorPointType == AnchorPointType.SE)
{
anchorPoint.Move(x, anchorPoint.Y);
}
else if (anchorPoint.AnchorPointType == AnchorPointType.NW)
{
anchorPoint.Move(anchorPoint.X, y);
}
MoveRefAnchorPoint(preX, preY, x, y, anchorPoint);
MoveRefAnchorPoint(preX, preY, anchorPoint);
}
else if (curAnchorPoint.AnchorPointType == AnchorPointType.SE)
{
if (anchorPoint.AnchorPointType == AnchorPointType.SW)
{
anchorPoint.Move(x, anchorPoint.Y);
}
else if (anchorPoint.AnchorPointType == AnchorPointType.NE)
{
anchorPoint.Move(anchorPoint.X, y);
}
MoveRefAnchorPoint(preX, preY, x, y, anchorPoint);
MoveRefAnchorPoint(preX, preY, anchorPoint);
}
else if (curAnchorPoint.AnchorPointType == AnchorPointType.NW)
{
if (anchorPoint.AnchorPointType == AnchorPointType.SW)
{
anchorPoint.Move(anchorPoint.X, y);
}
else if (anchorPoint.AnchorPointType == AnchorPointType.NE)
{
anchorPoint.Move(x, anchorPoint.Y);
}
MoveRefAnchorPoint(preX, preY, x, y, anchorPoint);
MoveRefAnchorPoint(preX, preY, anchorPoint);
}
}
}