/// <summary>
///
/// </summary>
/// <param name="g"></param>
/// <param name="location"></param>
/// <returns>New drawing offset (bottom left)</returns>
public Point Draw(Graphics g, Point location)
{
if (HasToggle)
{
//Draw lines linking to parent
if (this.parent is TristateTreeNode)
{
Pen pen = new Pen(Brushes.LightGray);
pen.DashStyle = DashStyle.Dash;
TristateTreeNodeCollection parentCNs = null;
if (this.parent is TristateTreeNode)
{
parentCNs = ((TristateTreeNode)parent).nodes;
}
else
{
parentCNs = ((TristateTreeView)parent).Nodes;
}
int offset = 20;
for (int i = 0; i < parentCNs.IndexOf(this); i++)
{
offset += parentCNs[i].BigSize.Height;
}
g.DrawLine(pen, location.X + 10, location.Y + 10, location.X - tabWidth + 10, location.Y + 10);
//Vline up
g.DrawLine(pen, location.X - tabWidth + 10, location.Y + 10, location.X - tabWidth + 10, location.Y - offset + 10);
}
//Draw actual element
if (location.Y > -20 && location.Y < TreeView.Height + 20)
{
if (HasCheckBox)
{
Point stringLocation = new Point(
location.X + 20 + 19,
location.Y + (20 - (int)g.MeasureString(text, this.GetFont()).Height) / 2
);
g.DrawImage(GetToggleBitmap(), new Rectangle(location, new Size(19, 20)));
g.DrawImage(GetCheckboxBitmap(), new Rectangle(new Point(location.X + 19, location.Y), new Size(20, 20)));
if (this.TreeView.SelectedNodes.Contains(this))
{
g.FillRectangle(Brushes.LightGray, new Rectangle(stringLocation, g.MeasureString(this.text, this.GetFont()).ToSize()));
}
g.DrawString(this.text,
this.GetFont(),
Brushes.Black,
stringLocation
);
}
else
{
Point stringLocation = new Point(
location.X + 19,
location.Y + (20 - (int)g.MeasureString(text, this.GetFont()).Height) / 2
);
g.DrawImage(GetToggleBitmap(), new Rectangle(location, new Size(19, 20)));
if (this.TreeView.SelectedNode == this)
{
g.FillRectangle(Brushes.LightGray, new Rectangle(stringLocation, g.MeasureString(this.text, this.GetFont()).ToSize()));
}
g.DrawString(this.text,
this.GetFont(),
Brushes.Black,
stringLocation
);
}
}
//Draw toggle
if (toggle)
{
Point offset = new Point(
location.X + tabWidth,
location.Y + this.Size.Height
);
for (int i = 0; i < nodes.Count; i++)
{
if (offset.Y < TreeView.Height)
{
offset = nodes[i].Draw(g, offset);
}
}
//RenderNodes(nodes[i].Nodes, g, offset);
//offset.X -= tabWidth;
}
return(GetDrawingOffset(g, location));
}
else
{
//Draw lines linking to parent
if (this.parent is TristateTreeNode)
{
Pen pen = new Pen(Brushes.LightGray);
pen.DashStyle = DashStyle.Dash;
TristateTreeNodeCollection parentCNs = null;
if (this.parent is TristateTreeNode)
{
parentCNs = ((TristateTreeNode)parent).nodes;
}
else
{
parentCNs = ((TristateTreeView)parent).Nodes;
}
int offset = 20;
for (int i = 0; i < parentCNs.IndexOf(this); i++)
{
offset += parentCNs[i].BigSize.Height;
}
g.DrawLine(pen, location.X + 10, location.Y + 10, location.X - tabWidth + 10, location.Y + 10);
//Vline up
g.DrawLine(pen, location.X - tabWidth + 10, location.Y + 10, location.X - tabWidth + 10, location.Y - offset + 10);
}
if (HasCheckBox)
{
Point stringLocation = new Point(
location.X + 19 + 20,
location.Y + (20 - (int)g.MeasureString(text, this.GetFont()).Height) / 2
);
g.DrawImage(GetCheckboxBitmap(), new Rectangle(
new Point(location.X + 19, location.Y), new Size(20, 20)));
if (this.TreeView.SelectedNode == this)
{
g.FillRectangle(Brushes.LightGray, new Rectangle(stringLocation, g.MeasureString(this.text, this.GetFont()).ToSize()));
}
g.DrawString(this.text,
this.GetFont(),
Brushes.Black,
stringLocation
);
}
else
{
Point stringLocation = new Point(
location.X + 19 + 20,
location.Y + (20 - (int)g.MeasureString(text, this.GetFont()).Height) / 2
);
if (this.TreeView.SelectedNode == this)
{
g.FillRectangle(Brushes.LightGray, new Rectangle(stringLocation, g.MeasureString(this.text, this.GetFont()).ToSize()));
}
g.DrawString(this.text,
this.GetFont(),
Brushes.Black,
stringLocation
);
}
return(GetDrawingOffset(g, location));
}
}
