// Graphics methods
//chuck's new code 2/20/04
//this method indicates whether point is along outline of graphic
//and if so, what type of cursor should show
public virtual void BoundaryTest(System.Drawing.Point pt, SizeDirection dir)
{
System.Drawing.Drawing2D.GraphicsPath gp = new System.Drawing.Drawing2D.GraphicsPath();
System.Drawing.Drawing2D.Matrix myMatrix = new System.Drawing.Drawing2D.Matrix();
System.Drawing.Pen pen = new System.Drawing.Pen(System.Drawing.Color.Black, 3);
gp.AddRectangle(new System.Drawing.Rectangle(this.m_Position.X - 3, this.m_Position.Y - 3, this.m_Size.Width + 6, this.m_Size.Height + 6));
if (this.m_Rotation != 0)
{
myMatrix.RotateAt((float)this.m_Rotation, new System.Drawing.PointF((float)this.X, (float)this.Y), System.Drawing.Drawing2D.MatrixOrder.Append);
}
gp.Transform(myMatrix);
dir = SizeDirection.NA;
if (gp.IsOutlineVisible(pt, pen))
{
//user has placed the mouse along the outline of the selected
//object - change the mouse to allow for resizing
System.Drawing.RectangleF rect = gp.GetBounds();
if (Math.Abs((int)rect.Left - pt.X) <= 2)
{
if (Math.Abs((int)rect.Top - pt.Y) <= 2)
{
dir = SizeDirection.Northwest;
}
else if (Math.Abs((int)rect.Bottom - pt.Y) <= 2)
{
dir = SizeDirection.Southwest;
}
else
{
dir = SizeDirection.West;
}
}
else if (Math.Abs((int)rect.Right - pt.X) <= 2)
{
if (Math.Abs((int)rect.Top - pt.Y) <= 2)
{
dir = SizeDirection.Northeast;
}
else if (Math.Abs((int)rect.Bottom - pt.Y) <= 2)
{
dir = SizeDirection.Southeast;
}
else
{
dir = SizeDirection.East;
}
}
else if (Math.Abs((int)rect.Top - pt.Y) <= 2)
{
dir = SizeDirection.North;
}
else
{
dir = SizeDirection.South;
}
}
}
private void MoleculeViewer_MouseUp(object sender, MouseEventArgs e)
{
if (m_DrawingLine)
{
return;
}
m_DraggingSelectedObject = false;
m_RotatingSelectedObject = false;
m_RotatingSurface = false;
Point mousePT = gscTogoc(e.X, e.Y);
if (m_SelectionDragging)
{
//'TODO: Rewrite to handle multiple selections
//'really just need to change from this.SelectedObject to a collection
//'add each found object in this loop, removing the Exit For
System.Drawing.Rectangle zoomedSelection = DeZoomRectangle(m_SelectionRectangle);
int numObj = m_DrawingObjects.Count;
foreach (GraphicObject graphicObj in m_DrawingObjects)
{
if (graphicObj.HitTest(zoomedSelection))
{
graphicObj.Selected = true;
}
}
m_SelectionDragging = false;
if (SelectionChanged != null)
{
if (numObj == 1)
{
SelectionChanged(this, new SelectionChangedEventArgs(SelectedObject));
}
else
{
SelectionChanged(this, new SelectionChangedEventArgs(SelectedObjects));
}
}
}
else if (resizing)
{
resizing = false;
sz_direct = SizeDirection.NA;
System.Windows.Forms.Cursor.Current = System.Windows.Forms.Cursors.Arrow;
}
Invalidate();
}
public void AddCorner(Ellipse ellipse, SizeDirection sizeDirection)
{
switch (sizeDirection)
{
case SizeDirection.NorthWest:
NorthWest = ellipse;
break;
case SizeDirection.SouthEast:
SouthEast = ellipse;
break;
case SizeDirection.SouthWest:
SouthWest = ellipse;
break;
case SizeDirection.NorthEast:
NorthEast = ellipse;
break;
}
}
protected override void OnMouseDown(MouseEventArgs e)
{
base.OnMouseDown(e);
IntPtr hwnd = this.Handle;
if ((isSizing) && (this.Parent != null) && (this.Parent.IsHandleCreated))
{
hwnd = Parent.Handle;
}
int nul = 0;
SizeDirection sdir = GetSizeDirection(e);
switch (sdir)
{
case SizeDirection.sdSizeLeft:
{
NativeCalls.ReleaseCapture(hwnd);
NativeCalls.SendMessage(hwnd, NativeCalls.WM_SYSCOMMAND, NativeCalls.SC_DRAGSIZE_W, ref nul);
} break;
case SizeDirection.sdSizeRight:
{
NativeCalls.ReleaseCapture(hwnd);
NativeCalls.SendMessage(hwnd, NativeCalls.WM_SYSCOMMAND, NativeCalls.SC_DRAGSIZE_E, ref nul);
} break;
case SizeDirection.sdSizeDown:
{
NativeCalls.ReleaseCapture(hwnd);
NativeCalls.SendMessage(hwnd, NativeCalls.WM_SYSCOMMAND, NativeCalls.SC_DRAGSIZE_S, ref nul);
} break;
case SizeDirection.sdSizeUp:
{
NativeCalls.ReleaseCapture(hwnd);
NativeCalls.SendMessage(hwnd, NativeCalls.WM_SYSCOMMAND, NativeCalls.SC_DRAGSIZE_N, ref nul);
} break;
case SizeDirection.sdUpLeft:
{
NativeCalls.ReleaseCapture(hwnd);
NativeCalls.SendMessage(hwnd, NativeCalls.WM_SYSCOMMAND, NativeCalls.SC_DRAGSIZE_NW, ref nul);
} break;
case SizeDirection.sdUpRight:
{
NativeCalls.ReleaseCapture(hwnd);
NativeCalls.SendMessage(hwnd, NativeCalls.WM_SYSCOMMAND, NativeCalls.SC_DRAGSIZE_NE, ref nul);
} break;
case SizeDirection.sdDownLeft:
{
NativeCalls.ReleaseCapture(hwnd);
NativeCalls.SendMessage(hwnd, NativeCalls.WM_SYSCOMMAND, NativeCalls.SC_DRAGSIZE_SW, ref nul);
} break;
case SizeDirection.sdDownRight:
{
NativeCalls.ReleaseCapture(hwnd);
NativeCalls.SendMessage(hwnd, NativeCalls.WM_SYSCOMMAND, NativeCalls.SC_DRAGSIZE_SE, ref nul);
} break;
}
}
