private static void drawTitle(Graphics g, Nodes.Node n, ref Rectangle nodeRect)
{
//draw title
g.DrawString(n.getName(), nodeTitleFont, Brushes.Black, nodeRect.X + (nodeRect.Width - System.Windows.Forms.TextRenderer.MeasureText(n.getName(), nodeTitleFont).Width) / 2, nodeRect.Y);
nodeRect.Y += nodeFont.Height;
g.DrawLine(Pens.Black, nodeRect.Left, nodeRect.Y, nodeRect.Right, nodeRect.Y);
//draw extra
if (n.getExtra() != null && n.getExtra() != "")
{
g.DrawString(n.getExtra(), nodeExtraFont, Brushes.Black, nodeRect.Location);
nodeRect.Y += nodeFont.Height;
g.DrawLine(Pens.Black, nodeRect.Left, nodeRect.Y, nodeRect.Right, nodeRect.Y);
}
}
public static Point getJointPos(Nodes.Node n, string port, bool input)
{
Rectangle nodeRect = getRect(n);
Point result = nodeRect.Location;
result.Y += nodeTitleFont.Height;
if (n.getExtra() != null)
{
result.Y += nodeExtraFont.Height;
}
foreach (var kvp in n.getProperties())
{
if (kvp.Key == port)
{
break;
}
if (kvp.Value.isInput || kvp.Value.isOutput)
{
result.Y += nodeFont.Height;
}
}
if (!input)
{
result.X += nodeRect.Width;
}
result.Y += ballSize / 2;
return(result);
}
public static Rectangle getRect(Nodes.Node n)
{
int titleWidth = System.Windows.Forms.TextRenderer.MeasureText(n.getName(), nodeTitleFont).Width;
Rectangle nodeRect = new Rectangle();
nodeRect.Location = n.getPos();
nodeRect.Width = Math.Max(100, titleWidth);
nodeRect.Height = nodeTitleFont.Height;
//count the lines to cover with text
if (n.getExtra() != null && n.getExtra() != "")
{
nodeRect.Height += nodeExtraFont.Height;
}
foreach (var kvp in n.getProperties())
{
if (kvp.Value.isInput || kvp.Value.isOutput)
{
nodeRect.Height += nodeFont.Height;
}
}
return(nodeRect);
}
public static string hitJoint(Nodes.Node n, Rectangle rect, int x, int y, bool inputsOnly)
{
//assume using a padded rect
//missed the balls.
if (x > rect.Left + ballSize && x < rect.Right - ballSize)
{
return(null);
}
rect.Y += nodeTitleFont.Height;
if (n.getExtra() != null)
{
rect.Y += nodeExtraFont.Height;
}
if (y < rect.Y)
{
return(null);
}
Point pos;
foreach (var kvp in n.getProperties())
{
if ((kvp.Value.isInput && inputsOnly) || (kvp.Value.isOutput && !inputsOnly))
{
pos = getJointPos(n, kvp.Key, inputsOnly);
pos.X -= x; pos.Y -= y;
//intentionally dividing by 2 instead of 4 to expand the 'okay' selection radius.
if (pos.X * pos.X + pos.Y * pos.Y < ballSize * ballSize / 2)
{
return(kvp.Key);
}
}
}
return(null);
}