private void MoleculeViewer_MouseDown(object sender, MouseEventArgs e)
{
if (Cursor == System.Windows.Forms.Cursors.Cross)
{
return;
}
System.Drawing.Point mousePT = gscTogoc(e.X, e.Y);
Invalidate();
if (Cursor == System.Windows.Forms.Cursors.Arrow)
{
SelectedObject = m_DrawingObjects.FindObjectAtPoint(mousePT);
if (SelectedObject != null)
{
if (e.Button == System.Windows.Forms.MouseButtons.Right)
{
m_RotatingSelectedObject = true;
startingRotation = AngleToPoint(SelectedObject.GetPosition(), mousePT);
originalRotation = SelectedObject.Rotation;
}
else
{
m_DraggingSelectedObject = true;
dragOffset.X = SelectedObject.X - mousePT.X;
dragOffset.Y = SelectedObject.Y - mousePT.Y;
}
}
else
{
if (e.Button == System.Windows.Forms.MouseButtons.Left)
{
m_SelectionDragging = true;
m_SelectionRectangle.X = e.X;
m_SelectionRectangle.Y = e.Y;
m_SelectionRectangle.Height = 0;
m_SelectionRectangle.Width = 0;
}
if (e.Button == System.Windows.Forms.MouseButtons.Right)
{
m_RotatingSurface = true;
dragOffset.X = mousePT.X;
dragOffset.Y = mousePT.Y;
}
}
}
else if (Cursor == System.Windows.Forms.Cursors.SizeNWSE ||
Cursor == System.Windows.Forms.Cursors.SizeNESW ||
Cursor == System.Windows.Forms.Cursors.SizeWE ||
Cursor == System.Windows.Forms.Cursors.SizeNS)
{
dragOffset.X = SelectedObject.X - mousePT.X;
dragOffset.Y = SelectedObject.Y - mousePT.Y;
resizing = true;
}
}
private void MoleculeViewer_MouseMove(object sender, MouseEventArgs e)
{
System.Drawing.Point dragPoint = gscTogoc(e.X, e.Y);
System.Drawing.Point MousePoint = gscTogoc(e.X, e.Y);
dragPoint.Offset(dragOffset.X, dragOffset.Y);
System.Drawing.Size minSize = new System.Drawing.Size(16, 16);
if (SelectedObject != null)
{
if (m_DraggingSelectedObject)
{
Rectangle rect = new System.Drawing.Rectangle(SelectedObject.GetPosition().X, SelectedObject.GetPosition().Y, SelectedObject.Width, SelectedObject.Height);
SelectedObject.SetPosition(dragPoint);
if (StatusUpdate != null)
{
StatusUpdate(this, new StatusUpdateEventArgs(StatusUpdateType.ObjectMoved,
SelectedObject, String.Format("Object Moved to {0}, {1}", dragPoint.X, dragPoint.Y),
dragPoint, 0));
}
Invalidate();
}
else if (m_RotatingSelectedObject)
{
float currentRotation;
currentRotation = (float)AngleToPoint(SelectedObject.GetPosition(), dragPoint);
currentRotation = (float)((int)(currentRotation - startingRotation + originalRotation) % 360);
SelectedObject.Rotation = currentRotation;
if (StatusUpdate != null)
{
StatusUpdate(this, new StatusUpdateEventArgs(StatusUpdateType.ObjectRotated,
SelectedObject, String.Format("Object Rotated to {0} degrees", currentRotation),
new System.Drawing.Point(0, 0), currentRotation));
}
Invalidate();
}
else if (resizing)
{ //combine code because you will need to move ports in both cases
System.Drawing.Rectangle rect = new System.Drawing.Rectangle(SelectedObject.X, SelectedObject.Y, SelectedObject.Width, SelectedObject.Height);
System.Drawing.Size sz = new System.Drawing.Size(0, 0);
System.Drawing.Point fixedPT = new System.Drawing.Point(0, 0);
System.Drawing.Point dragPT = new System.Drawing.Point(0, 0);
SelectedObject.AutoSize = false;
switch (sz_direct)
{
case SizeDirection.Northwest: //changing all
{
System.Drawing.Point ULHC = SelectedObject.GetPosition();
System.Drawing.Point LRHC = new System.Drawing.Point(0, 0);
sz = SelectedObject.GetSize();
LRHC.X = ULHC.X + sz.Width;
LRHC.Y = ULHC.Y + sz.Height;
sz.Width = LRHC.X - MousePoint.X;
sz.Height = LRHC.Y - MousePoint.Y;
if (sz.Width < 16)
{
sz.Width = 16;
}
if (sz.Height < 16)
{
sz.Height = 16;
}
ULHC.X = LRHC.X - sz.Width;
ULHC.Y = LRHC.Y - sz.Height;
SelectedObject.SetPosition(ULHC);
SelectedObject.SetSize(sz);
break;
}
case SizeDirection.North: //changing top, and height
{
System.Drawing.Point ULHC = SelectedObject.GetPosition();
System.Drawing.Point LLHC = new System.Drawing.Point(0, 0);
LLHC.X = ULHC.X;
sz = SelectedObject.GetSize();
LLHC.Y = ULHC.Y + sz.Height;
sz.Height = LLHC.Y - MousePoint.Y;
if (sz.Height < 16)
{
sz.Height = 16;
}
ULHC.Y = LLHC.Y - sz.Height;
SelectedObject.SetPosition(ULHC);
SelectedObject.SetSize(sz);
break;
}
case SizeDirection.Northeast: //changing top, width, and height
{
System.Drawing.Point ULHC = SelectedObject.GetPosition();
System.Drawing.Point LLHC = new System.Drawing.Point(0, 0);
sz = SelectedObject.GetSize();
LLHC.X = ULHC.X;
LLHC.Y = ULHC.Y + sz.Height;
sz.Width = MousePoint.X - LLHC.X;
sz.Height = LLHC.Y - MousePoint.Y;
if (sz.Width < 16)
{
sz.Width = 16;
}
if (sz.Height < 16)
{
sz.Height = 16;
}
ULHC.X = LLHC.X;
ULHC.Y = LLHC.Y - sz.Height;
SelectedObject.SetPosition(ULHC);
SelectedObject.SetSize(sz);
break;
}
case SizeDirection.East: //changing width
{
System.Drawing.Point ULHC = SelectedObject.GetPosition();
sz = SelectedObject.GetSize();
sz.Width = MousePoint.X - ULHC.X;
if (sz.Width < 16)
{
sz.Width = 16;
}
SelectedObject.SetSize(sz);
break;
}
case SizeDirection.Southeast: //changing height, width
{
System.Drawing.Point ULHC = SelectedObject.GetPosition();
sz = SelectedObject.GetSize();
sz.Width = MousePoint.X - ULHC.X;
sz.Height = MousePoint.Y - ULHC.Y;
if (sz.Width < 16)
{
sz.Width = 16;
}
if (sz.Height < 16)
{
sz.Height = 16;
}
SelectedObject.SetSize(sz);
break;
}
case SizeDirection.South: //changing height
{
System.Drawing.Point ULHC = SelectedObject.GetPosition();
sz = SelectedObject.GetSize();
sz.Height = MousePoint.Y - ULHC.Y;
if (sz.Height < 16)
{
sz.Height = 16;
}
SelectedObject.SetSize(sz);
break;
}
case SizeDirection.Southwest: //changing left,height, and width
{
System.Drawing.Point ULHC = SelectedObject.GetPosition();
System.Drawing.Point URHC = new System.Drawing.Point(0, 0);
sz = SelectedObject.GetSize();
URHC.Y = ULHC.Y;
URHC.X = ULHC.X + sz.Width;
sz.Width = URHC.X - MousePoint.X;
sz.Height = MousePoint.Y - URHC.Y;
if (sz.Width < 16)
{
sz.Width = 16;
}
if (sz.Height < 16)
{
sz.Height = 16;
}
ULHC.X = URHC.X - sz.Width;
SelectedObject.SetPosition(ULHC);
SelectedObject.SetSize(sz);
break;
}
case SizeDirection.West: //changing left and width
{
System.Drawing.Point ULHC = SelectedObject.GetPosition();
System.Drawing.Point URHC = new System.Drawing.Point(0, 0);
sz = SelectedObject.GetSize();
URHC.Y = ULHC.Y;
URHC.X = ULHC.X + sz.Width;
sz.Width = URHC.X - MousePoint.X;
if (sz.Width < 16)
{
sz.Width = 16;
}
ULHC.X = URHC.X - sz.Width;
SelectedObject.SetPosition(ULHC);
SelectedObject.SetSize(sz);
break;
}
default:
break;
}
}
}
//else if (this.GetDrawingLine())
//{
// //this.Cursor = Cursors.Cross;
// System.Drawing.Point points[] = this.GetDrawingLinePoints();
// points[points.Length - 1] = gscTogoc(e.X, e.Y);
// this.SetDrawingLinePoints(points);
// this.Invalidate();
//}
else if (m_SelectionDragging)
{
m_SelectionRectangle.Width = e.X - m_SelectionRectangle.X;
m_SelectionRectangle.Height = e.Y - m_SelectionRectangle.Y;
}
else if (m_RotatingSurface)
{
surfaceRotation = surfaceRotation + (float)AngleToPoint(dragOffset, dragPoint) / 100;
//currentRotation = ((int)(currentRotation - startingRotation + originalRotation) % 360);
if (StatusUpdate != null)
{
StatusUpdate(this, new StatusUpdateEventArgs(StatusUpdateType.ObjectRotated,
SelectedObject, String.Format("Surface Rotated to {0} degrees", surfaceRotation),
new System.Drawing.Point(0, 0), surfaceRotation));
}
Invalidate();
}
Invalidate();
}