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();
//
// RootTree has priority - so it is painted last but its panel is saved first in the hList
if (treeNode != null)
{
Rectangle rootBounds = new Rectangle(
-Controller.OffsetX, 0,
Size.Width, Controller.DisplayOptions.RootHeight);
// note for root hpanel treeNode of nodepanel is null
_hLayout.Add(new NodePanel(null, rootBounds));
}
while (treeNode != null)
{
if (treeNode.IsCollapsed == false || treeNode.IsHidden)
{
treeNode = iterator.Next();
}
else
{
DrawPanel(g, treeNode, y);
y += Controller.DisplayOptions.CellHeight;
treeNode = iterator.Skip();
}
}
Size = new Size(y + Controller.OffsetY - Controller.DisplayOptions.RootHeight + 1, y + Controller.OffsetY + 1);
DrawGroupingSquares(g);
DrawRootPanel(g);
}
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);
}
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();
}
}
}