/// <summary>
/// Adjusts the alpha channel of the color passed in for filtering
/// </summary>
/// <param name="col"></param>
/// <param name="alpha"></param>
/// <returns></returns>
public Color AdjustFilterAlpha(Color col)
{
return(ColorHelper.AdjustAlpha(col, NodeAlpha()));
}
public void DrawTree(Rect canvas)
{
// get total size of Research Tree
int maxDepth = 0, totalWidth = 0;
if (ResearchTree.Trees.Any())
{
maxDepth = ResearchTree.Trees.Max(tree => tree.MaxDepth);
totalWidth = ResearchTree.Trees.Sum(tree => tree.Width);
}
maxDepth = Math.Max(maxDepth, ResearchTree.Orphans.MaxDepth);
totalWidth += ResearchTree.Orphans.Width;
float width = (maxDepth + 1) * (Settings.NodeSize.x + Settings.NodeMargins.x); // zero based
float height = (totalWidth - 1) * (Settings.NodeSize.y + Settings.NodeMargins.y);
// main view rect
Rect view = new Rect(0f, 0f, width, height);
// create the scroll area below the search box (plus a small margin) so it stays on top
Widgets.BeginScrollView(new Rect(canvas.x,
canvas.y + filterManager.Height + Settings.NodeMargins.y,
canvas.width, canvas.height - filterManager.Height - Settings.NodeMargins.y),
ref _scrollPosition, view);
GUI.BeginGroup(view);
Text.Anchor = TextAnchor.MiddleCenter;
// draw regular connections, not done first to better highlight done.
foreach (Pair <Node, Node> connection in connections.Where(pair => !pair.Second.Research.IsFinished))
{
ResearchTree.DrawLine(connection,
filterManager.FilterPhrase.NullOrEmpty() ? connection.First.Tree.GreyedColor : ColorHelper.AdjustAlpha(connection.First.Tree.GreyedColor, Settings.FilterNonMatchAlpha));
}
// draw connections from completed nodes
foreach (Pair <Node, Node> connection in connections.Where(pair => pair.Second.Research.IsFinished))
{
if (!filterManager.FilterPhrase.NullOrEmpty())
{
ResearchTree.DrawLine(connection, ColorHelper.AdjustAlpha(connection.First.Tree.GreyedColor, Settings.FilterNonMatchAlpha));
}
else
{
ResearchTree.DrawLine(connection, connection.First.Tree.MediumColor);
}
}
connections.Clear();
// draw highlight connections on top
foreach (Pair <Node, Node> connection in highlightedConnections)
{
ResearchTree.DrawLine(connection, GenUI.MouseoverColor, true);
}
highlightedConnections.Clear();
// draw nodes on top of lines
bool reqScroll = true;
Node scrollToNode = null;
foreach (Node node in nodes)
{
// draw the node
bool visible = node.Draw();
// ensure that at least one matching node is visible, prioritize highest on the screen
if (filterManager.FilterDirty)
{
if (node.FilterMatch.IsValidMatch())
{
if (!reqScroll)
{
continue;
}
// this node is a match and is currently visible, we don't need to scroll
if (visible)
{
reqScroll = false;
scrollToNode = null;
}
else
{
// this node is a match, but isn't visible. if it's the highest node then we'll scroll to it
if (scrollToNode == null || node.Pos.z < scrollToNode.Pos.z)
{
scrollToNode = node;
}
}
}
}
}
if (filterManager.FilterDirty)
{
// scroll to a matching node if necessary
if (scrollToNode != null)
{
// scale the focus area to ensure it all fits on the screen
Rect r = scrollToNode.Rect.ScaledBy(2.0f);
_scrollPosition = new Vector2(r.xMin, r.yMin);
}
else if (filterManager.FilterPhrase == "")
{
_scrollPosition = Vector2.zero;
}
}
nodes.Clear();
// register hub tooltips
foreach (KeyValuePair <Rect, List <string> > pair in hubTips)
{
string text = string.Join("\n", pair.Value.ToArray());
TooltipHandler.TipRegion(pair.Key, text);
}
hubTips.Clear();
// draw Queue labels
Queue.DrawLabels();
// reset anchor
Text.Anchor = TextAnchor.UpperLeft;
GUI.EndGroup();
Widgets.EndScrollView();
}