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我的代码如下：
protected override void GeneratePath()
{
bool isLine = true;
_Path = new System.Drawing.Drawing2D.GraphicsPath();
_Path.AddLine(Location.X + Size.Width, Location.Y, Location.X + Size.Width, Location.Y + Size.Height);
_Path.CloseAllFigures();
_Path.AddLine(Location.X, Location.Y, Location.X, Location.Y + Size.Height);
for (int i = Location.Y; i < Location.Y + Size.Height; i = i + 2)
{
if (isLine)
{
int st = i;
int ed = st + 2;
if (st + 2 <= Location.Y + Size.Height)
{
_Path.CloseFigure();
Point pStart = new Point(Location.X, st);
Point pEnd = new Point(Location.X, ed);
_Path.AddLine(pStart, pEnd);
_Path.CloseFigure();
isLine = false;
}
}
else
{
isLine = true;
}
}
InvalidationArea = Rectangle.Round(_Path.GetBounds());
}
我想实现等鼠标点击线段和虚线段区域之间的点时，移动图像
if (Path.IsVisible(e.Location))
return true;
问题是，当我点击区域之间的点是，上面的这个函数返回的是False。如何才能选中并移动呢？？？
其他代码
public virtual bool HitTest(MouseEventArgs e)
{
//we only need the Location of the mouse but by passing
//the MouseEventArgs, no value copying has to occur.
//Only the memory reference will be passed
if (isSelected && InvalidationArea.Contains(e.Location))
return true;
else if (Path.IsVisible(e.Location))
return true;
return false;
}
public virtual EventData MouseDown(MouseEventArgs e)
{
eventData.WasHit = HitTest(e);
if (eventData.WasHit)
{
isSelected = true;
if (!(editingOn && !painter.State.AcceptsEditing))
{
mouseOffset = new PointF(Path.GetBounds().X - e.X, Path.GetBounds().Y - e.Y);
pntMoveStartPos = Point.Round(Path.GetBounds().Location);
pntBitmapPos = pntMoveStartPos;
rectOldBounds = GetShapeBounds(false);
mouseIsPressed = true;
isResizing = (ResizeHandles.HitTest(e.Location));
}
eventData.NeedsPainted = true;
}
else if (isSelected)
{
isSelected = false;
painter.State.IsSelected = false;
eventData.NeedsPainted = true;
}
return eventData;
}
public virtual bool MouseMove(MouseEventArgs e)
{
if (isSelected && !editingOn && !mouseIsPressed)
{
ResizeHandles.HitTest(e.Location);
}
doOperation = false;
if (mouseIsPressed)
{
eventData.NeedsPainted = true;
if (isResizing)
{
Rectangle oldBounds = ResizeHandles.Bounds;//InvalidationArea;
Resize(e.Location);
blnSuppressInflate = true;
InvalidationArea = Rectangle.Union(oldBounds,
GetShapeBounds(false));
blnSuppressInflate = false;
doOperation = true;
}
else
{
if (bmpMove == null)
{
RectangleF rectBounds = Path.GetBounds();
Point tmpLocation = Point.Round(rectBounds.Location);
Size tmpSize = Size.Round(rectBounds.Size);
GeneratePath(new Rectangle(0, 0, (int)rectBounds.Width, (int)rectBounds.Height));
bmpMove = new Bitmap((int)rectBounds.Width+2, (int)rectBounds.Height+2);
Graphics g = Graphics.FromImage(bmpMove);
bool blnTemp = painter.PaintFill;
painter.PaintFill = false;
painter.Paint(g, Path);
painter.PaintFill = blnTemp;
g.Dispose(); g = null;
Location = tmpLocation;
Size = tmpSize;
_Path = null;
//sbLog.Append("Init and Paint the drag bitmap...\r\n");
}
Rectangle oldBounds = new Rectangle(pntBitmapPos, bmpMove.Size);
pntBitmapPos = new Point((int)(e.X + mouseOffset.X), (int)(e.Y + mouseOffset.Y));
InvalidationArea = Rectangle.Union(oldBounds,
new Rectangle(pntBitmapPos, bmpMove.Size));
doOperation = true;
// sbLog.Append("BitmapPos: " + pntBitmapPos.X + "," + pntBitmapPos.Y + "; Invalidation: " + _InvalidationArea.ToString() + "\r\n");
}
}
return doOperation;
}
