public FlowConnector(FlowElement owner, string name, bool isInput)
: this(owner, isInput)
{
this.Name = name;
// Precalculate the invalidation width.
this.InvalidationWidth = 200;
}
public FlowConnector(FlowElement owner, bool isInput)
{
if (owner == null)
{
throw new ArgumentNullException("owner");
}
this.Owner = owner;
this.IsInput = isInput;
}
internal static int GetConnectorIndex(FlowElement el, FlowConnector fl)
{
if (fl.IsInput)
{
return(el.InputConnectors.IndexOf(fl));
}
else
{
return(el.OutputConnectors.IndexOf(fl));
}
}
public ExportForm(Flow.FlowElement flowElement)
{
InitializeComponent();
LayerFlowElement lfw = flowElement as LayerFlowElement;
this.m_Layer = lfw.Layer;
if (this.m_Layer is Layer2D)
{
this.m_Bitmap = new Bitmap(1024, 1024);
}
else
{
this.m_Bitmap = new Bitmap(1024 + 32, 1024 + 256);
}
this.c_RenderBox.Image = this.m_Bitmap;
this.c_Timer.Start();
}
internal static void RenderTo(FlowConnector el, RenderAttributes re)
{
re.Graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
re.Graphics.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAliasGridFit;
// If we are input, we draw on the left hand side of the flow element.
int idx = FlowElement.GetConnectorIndex(el.Owner, el);
int sx = (int)Math.Ceiling(re.Graphics.MeasureString(el.Name, re.Font).Width);
float xx = (el.IsInput ? el.Owner.X - CONNECTOR_PADDING : el.Owner.X + el.Owner.Width + CONNECTOR_PADDING) * re.Zoom;
float yy = (el.Owner.Y + idx * (CONNECTOR_SIZE + CONNECTOR_PADDING)) * re.Zoom;
if (el.IsInput)
{
re.Graphics.DrawString(el.Name, re.Font, SystemBrushes.ControlText, new PointF(xx - sx + CONNECTOR_PADDING * re.Zoom, yy));
}
else
{
re.Graphics.DrawString(el.Name, re.Font, SystemBrushes.ControlText, new PointF(xx, yy));
}
el.InvalidationWidth = sx;
el.m_CenterZoomAdjustment = re.Zoom;
sx += CONNECTOR_PADDING;
re.Graphics.DrawRectangle(Pens.Black, xx + (el.IsInput ? -sx : sx), yy, CONNECTOR_SIZE * re.Zoom, CONNECTOR_SIZE * re.Zoom);
if (el.IsInput && el.ConnectedTo != null)
{
foreach (FlowConnector ct in el.ConnectedTo)
{
try
{
re.Graphics.DrawLine(Pens.Blue, el.Center.Apply(re.Zoom), ct.Center.Apply(re.Zoom));
}
catch (OverflowException)
{
}
}
}
}
