void DrawGroupingSquares(Graphics g)
{
TreeIterator <Element> iterator = new TreeIterator <Element>(Controller.MatrixModel.Hierarchy);
TreeNode <Element> treeNode = iterator.Next();
int xPos = -Controller.OffsetX + 1;
int yPos = -Controller.OffsetY + Controller.DisplayOptions.RootHeight + 1;
while (treeNode != null)
{
if (treeNode.IsHidden == false)
{
if (treeNode.IsCollapsed == false)
{
int width = Controller.CountNbDisplayableNested(treeNode) * Controller.DisplayOptions.CellHeight;
Rectangle rect = new Rectangle(xPos, yPos, width - 1, width - 1);
if (g.Clip.IsVisible(rect))
{
g.DrawRectangle(new Pen(Brushes.DarkGray, 2), rect);
}
treeNode = iterator.Next();
}
else
{
xPos += Controller.DisplayOptions.CellHeight;
yPos += Controller.DisplayOptions.CellHeight;
treeNode = iterator.Skip();
}
}
else
{
treeNode = iterator.Next();
}
}
}
void Draw(Graphics g)
{
int y = -Controller.OffsetY + Controller.DisplayOptions.RootHeight;
TreeIterator <Element> iterator = new TreeIterator <Element>(Controller.MatrixModel.Hierarchy);
TreeNode <Element> treeNode = iterator.Next();
while (treeNode != null)
{
if (treeNode.IsHidden == false)
{
if (treeNode.IsCollapsed == false)
{
Rectangle bounds = new Rectangle(
treeNode.Depth * Controller.DisplayOptions.CellHeight,
y,
Controller.DisplayOptions.CellHeight,
Controller.CountNbDisplayableNested(treeNode) * Controller.DisplayOptions.CellHeight);
if (g.Clip.IsVisible(bounds))
{
DrawPanel(g, bounds, treeNode);
_layout.Add(new NodePanel(treeNode, bounds));
}
// y position does not change for next treeNode
treeNode = iterator.Next();
}
else
{
// treeNode is collapsed - draw the module at position
// if the treeNode has childrenskip them
int x = treeNode.Depth * Controller.DisplayOptions.CellHeight;
Rectangle bounds =
new Rectangle(x, y, Size.Width - x, Controller.DisplayOptions.CellHeight);
if (g.Clip.IsVisible(bounds))
{
DrawPanel(g, bounds, treeNode);
_layout.Add(new NodePanel(treeNode, bounds));
}
// position for next panel
y += Controller.DisplayOptions.CellHeight;
treeNode = iterator.Skip();
}
}
else
{
treeNode = iterator.Next();
}
}
Size = new Size(Size.Width, y + Controller.OffsetY);
g.DrawRectangle(_borderPen, new Rectangle(0, 0, Width - 1, Height - 1));
Rectangle rootBounds = new Rectangle(0, 0, Size.Width - 1, Controller.DisplayOptions.RootHeight - 2);
DrawRootPanel(g, rootBounds);
}