void DrawPanel(Graphics g, Rectangle bounds, TreeNode <Element> treeNode)
{
Element module = treeNode.NodeValue;
g.FillRectangle(
Controller.ProviderTreeNode == treeNode ? Brushes.White : Controller.GetBackgroundColour(treeNode, null), bounds);
if (treeNode.HasChildren)
{
if (treeNode.IsCollapsed)
{
g.DrawImage(_imgCollapsed, bounds.Left + 4, bounds.Top + 4);
g.DrawString(module.Name + " - " + module.Id,
GetNodeFont(treeNode), Brushes.Black, bounds.Left + 18, bounds.Top + 2);
}
else
{
g.DrawImage(_imgExpanded, bounds.Left + 4, bounds.Top + 4);
g.DrawString(module.Name, GetNodeFont(treeNode), Brushes.Black,
bounds.Left, bounds.Top + 18, _vStringFormat);
}
}
else
{
g.DrawString(module.Name + " - " + module.Id, GetNodeFont(treeNode), Brushes.Black,
bounds.Left + 2, bounds.Top + 2);
}
g.DrawRectangle(_borderPen, bounds);
}
private void DrawRootPanel(Graphics g)
{
int stateDisplay = 0; // tri-state optimisation 0 not started dispaying, 1 currently displaying
// 2 finished displaying and can therefore break out of the loop
int x = -Controller.OffsetX;
TreeIterator <Element> iterator = new TreeIterator <Element>(Controller.MatrixModel.Hierarchy);
TreeNode <Element> treeNode = iterator.Next();
while (treeNode != null && stateDisplay != 2)
{
Element module = treeNode.NodeValue;
if (treeNode.IsCollapsed == false || treeNode.IsHidden)
{
treeNode = iterator.Next();
}
else
{
Rectangle cell = new Rectangle(x, 0,
Controller.DisplayOptions.CellHeight, Controller.DisplayOptions.RootHeight - 2);
if (g.Clip.IsVisible(cell))
{
// for each visible cell we create a vertical panel in vLayout of
// height of _matrix
Rectangle vPanelRec =
new Rectangle(x, 0, Controller.DisplayOptions.CellHeight, Size.Height);
_vLayout.Add(new NodePanel(treeNode, vPanelRec));
g.FillRectangle(
Controller.ConsumerTreeNode == treeNode
? Brushes.White
: Controller.GetBackgroundColour(treeNode, null), cell);
if (treeNode.HasChildren)
{
g.DrawImage(_imgCollapsed, cell.Left + (cell.Width / 2.0f) - 4, cell.Top + 2);
}
g.DrawString(module.Id.ToString(), Controller.DisplayOptions.TextFont,
_fcBrush, x, 10, _vStringFormat);
g.DrawRectangle(_borderPen, cell);
g.DrawLine(new Pen(Brushes.White, 1),
cell.Left, cell.Bottom + 1, cell.Right, cell.Bottom + 1);
if (stateDisplay == 0)
{
stateDisplay++;
}
}
else if (stateDisplay == 1)
{
stateDisplay++; // finished displaying
}
x += Controller.DisplayOptions.CellHeight;
treeNode = iterator.Skip();
}
}
}