private void AddToEndofChildren(FlowChartItemControl parent, FlowChartItemControl child)
{
while (parent.Children.Count > 0)
{
parent = parent.Children[0];
}
parent.AddChild(child);
}
private void CreateChildren(List <PsudoInstruction> instructions, FlowChartItemControl parent)
{
FlowChartItemControl tempParent = parent;
FlowChartItemControl item = null;
foreach (PsudoInstruction inst in instructions)
{
item = new FlowChartItemControl(inst);
this.drawingPanel.Controls.Add(item);
if (inst is BlockInstruction)
{
tempParent.AddChild(item);
CreateChildren(((BlockInstruction)inst).Instructions, item);
}
else if (inst is DecisionInstruction)
{
tempParent.AddChild(item);
DecisionInstruction decision = (DecisionInstruction)inst;
if (decision.FalseInstruction is BlockInstruction || decision.FalseInstruction is NoOpInstruction)
{
FlowChartItemControl trueBlock = new FlowChartItemControl("TRUE");
FlowChartItemControl falseBlock = new FlowChartItemControl("FALSE");
trueBlock.IsLabelNode = true;
falseBlock.IsLabelNode = true;
item.AddChild(trueBlock);
item.AddChild(falseBlock);
this.drawingPanel.Controls.Add(trueBlock);
this.drawingPanel.Controls.Add(falseBlock);
CreateChildren(decision.CodeBlock.Instructions, trueBlock);
if (decision.FalseInstruction is BlockInstruction)
{
CreateChildren(((BlockInstruction)decision.FalseInstruction).Instructions, falseBlock);
}
}
else
{
CreateChildren(decision.CodeBlock.Instructions, item);
while (decision.FalseInstruction is DecisionInstruction)
{
decision = (DecisionInstruction)decision.FalseInstruction;
CreateChildren(decision.CodeBlock.Instructions, item);
}
}
FlowChartItemControl end = new FlowChartItemControl("End");
this.drawingPanel.Controls.Add(end);
foreach (FlowChartItemControl child in item.Children)
{
AddToEndofChildren(child, end);
}
item = end;
}
else if (inst is DoLoopInstruction)
{
DoLoopInstruction loop = (DoLoopInstruction)inst;
FlowChartItemControl doNode = new FlowChartItemControl("DO");
this.drawingPanel.Controls.Add(doNode);
tempParent.AddChild(doNode);
CreateChildren(loop.Instructions, doNode);
AddToEndofChildren(tempParent, item);
item.LoopBack = doNode;
}
else if (inst is ForLoopInstruction)
{
ForLoopInstruction loop = (ForLoopInstruction)inst;
FlowChartItemControl initNode = new FlowChartItemControl(loop.InitInstruction);
this.drawingPanel.Controls.Add(initNode);
tempParent.AddChild(initNode);
initNode.AddChild(item);
CreateChildren(loop.Instructions, item);
FlowChartItemControl updateNode = new FlowChartItemControl(loop.UpdateInstruction);
this.drawingPanel.Controls.Add(updateNode);
AddToEndofChildren(item, updateNode);
updateNode.LoopBack = item;
}
else if (inst is WhileLoopInstruction)
{
tempParent.AddChild(item);
WhileLoopInstruction loop = (WhileLoopInstruction)inst;
CreateChildren(loop.Instructions, item);
FlowChartItemControl temp = item.Children[0];
while (temp.Children.Count > 0)
{
temp = temp.Children[0];
}
temp.LoopBack = item;
}
else
{
tempParent.AddChild(item);
}
tempParent = item;
}
}
