private static bool IsArrowClickable(TagArrowInfo tag)
{
if (tag != null)
{
if (tag.refObj is ParserObject &&
(tag.refObj.NextContinuedObj != null || tag.refObj.PrevInterruptedObj != null))
{
int idx = tag.stateObj.Parent.StateCollection.IndexOf(tag.stateObj);
if (idx > 0 && idx < tag.stateObj.Parent.StateCollection.Count)
{
var nextState = idx < tag.stateObj.Parent.StateCollection.Count - 1 ?
tag.stateObj.Parent.StateCollection[idx + 1] : null;
var prevState = tag.stateObj.Parent.StateCollection[idx - 1];
if (nextState == null || nextState.ObjectClass == ObjectClass.Blank || prevState.ObjectClass == ObjectClass.Blank)
{
return(true);
}
}
}
}
return(false);
}
private static void CreateArrowImageCell(StateObject stateObj, DataGridViewRow row, int cellIndex, ParserObject nextContinuedObj, ParserObject prevInterruptedObj)
{
var cell = new DataGridViewImageCell();
if (stateObj == null)
{
row.Cells[cellIndex] = cell;
return;
}
if (prevInterruptedObj != null)
{
var tag = new TagArrowInfo {
refObj = prevInterruptedObj, stateObj = stateObj
};
if (IsArrowClickable(tag))
{
cell.Value = ImageExt.ColorReplace(Properties.Resources.forward_arrow, Color.White, ColorTranslator.FromHtml(prevInterruptedObj.BaseColor));
tag.IsClickable = true;
tag.ToolTipText = "To PREVIOUS state...";
cell.Tag = tag;
}
else
{
cell.Value = Properties.Resources.forward_arrow;
tag.IsClickable = false;
cell.Tag = new TagArrowInfo {
refObj = null, stateObj = stateObj
};
}
}
else if (nextContinuedObj != null)
{
var tag = new TagArrowInfo {
refObj = nextContinuedObj, stateObj = stateObj
};
if (IsArrowClickable(tag))
{
cell.Value = ImageExt.ColorReplace(Properties.Resources.forward_arrow, Color.White, ColorTranslator.FromHtml(nextContinuedObj.BaseColor));
tag.IsClickable = true;
tag.ToolTipText = "To NEXT state...";
cell.Tag = tag;
}
else
{
cell.Value = Properties.Resources.forward_arrow;
tag.IsClickable = false;
cell.Tag = new TagArrowInfo {
refObj = null, stateObj = stateObj
};
}
}
else
{
cell.Value = Properties.Resources.forward_arrow;
cell.Tag = new TagArrowInfo {
refObj = null, stateObj = stateObj
};
}
row.Cells[cellIndex] = cell;
}