| public static IsPointInTriangle ( Point p, Point a, Point b, Point c ) : bool | ||
| p | Point | |
| a | Point | |
| b | Point | |
| c | Point | |
| 리턴 | bool | |
private void PinboardControl_MouseDown(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
int index = FindRectangle(e.Location);
if (index == -1)
{
selectedIndex = -1;
RaiseSelectionChangedEvent();
this.DisplayDirty = true;
return;
}
this.Capture = true;
PinboardFileV1.RectangleInfo dragRectInfo = Data.RectInfos[index];
Point[] points = this.GetCornerPoints(dragRectInfo.Rectangle);
if (Vector.IsPointInTriangle(e.Location, points[0], points[1], points[2]))
{
this.dragOffset = new Point(
dragRectInfo.X + dragRectInfo.Width - e.Location.X,
dragRectInfo.Y + dragRectInfo.Height - e.Location.Y);
dragOp = DragOperation.Sizing;
this.Cursor = Cursors.SizeNWSE;
}
else
{
this.dragOffset = new Point(
e.Location.X - dragRectInfo.Rectangle.X,
e.Location.Y - dragRectInfo.Rectangle.Y);
dragOp = DragOperation.Moving;
this.Cursor = Cursors.Hand;
}
selectedIndex = index;
RaiseSelectionChangedEvent();
this.DisplayDirty = true;
}
}
private void PinboardControl_MouseMove(object sender, MouseEventArgs e)
{
if (Capture == true)
{
switch (dragOp)
{
case DragOperation.Moving:
SetRectanglePositionFromPoint(e.Location);
break;
case DragOperation.Sizing:
SetRectangleSizeFromPoint(e.Location);
break;
}
this.DataDirty = true;
}
else
{
int index = FindRectangle(e.Location);
if (index != -1)
{
Point[] points = GetCornerPoints(Data.RectInfos[index].Rectangle);
if (Vector.IsPointInTriangle(e.Location, points[0], points[1], points[2]))
{
this.Cursor = Cursors.SizeNWSE;
}
else
{
this.Cursor = Cursors.Hand;
}
}
else
{
this.Cursor = Cursors.Arrow;
}
}
}
