//the anchor passed to ths function must be in the `anchors` list
void RenderAnchor(AnchorField anchorField, Anchor anchor, ref Rect renderRect)
{
//visual parameters for anchors:
Vector2 anchorSize = new Vector2(13, 13);
Vector2 margin = new Vector2(0, 2);
if (anchor.forcedY != -1)
{
renderRect.yMin = anchor.forcedY;
}
anchor.rect = new Rect(renderRect.min + margin, anchorSize);
//anchor name:
string anchorName = anchorField.name;
if (!String.IsNullOrEmpty(anchor.name))
{
anchorName = anchor.name;
}
//anchor color:
if (anchor.color != new Color(0, 0, 0, 0))
{
GUI.color = anchor.color;
}
else
{
GUI.color = ColorTheme.GetAnchorColor(anchor.colorSchemeName);
}
//highlight mode to GUI color:
if (graphRef.editorEvents.isDraggingLink || graphRef.editorEvents.isDraggingNewLink)
{
if (anchor.highlighMode != AnchorHighlight.None)
{
if (anchor.isLinkable)
{
GUI.color = highlightModeToColor[anchor.highlighMode];
}
else
{
GUI.color = ColorTheme.disabledAnchorColor;
}
}
}
//Draw the anchor:
GUI.DrawTexture(anchor.rect, anchorTexture, ScaleMode.ScaleToFit);
//Draw the anchor name if not null
if (!string.IsNullOrEmpty(anchorName))
{
Rect anchorNameRect = anchor.rect;
Vector2 textSize = GUI.skin.label.CalcSize(new GUIContent(anchorName));
if (anchorField.anchorType == AnchorType.Input)
{
anchorNameRect.position += new Vector2(-6, -2);
}
else
{
anchorNameRect.position += new Vector2(-textSize.x + 4, -2);
}
anchorNameRect.size = textSize + new Vector2(15, 4); //add the anchorLabel size
GUI.depth = 10;
GUI.Label(anchorNameRect, anchorName, (anchorField.anchorType == AnchorType.Input) ? inputAnchorLabelStyle : outputAnchorLabelStyle);
}
//error display (required unlinked anchors)
if (anchor.visibility == Visibility.Visible &&
anchorField.required &&
!anchorField.multiple &&
anchor.anchorType == AnchorType.Input &&
anchor.linkCount == 0)
{
Rect errorIconRect = new Rect(anchor.rect);
errorIconRect.size = Vector2.one * 17;
errorIconRect.position += new Vector2(-6, -10);
GUI.color = Color.red;
GUI.DrawTexture(errorIconRect, errorIcon);
GUI.color = Color.white;
}
//debug:
if (anchor.debug)
{
GUIContent debugContent = new GUIContent("c:" + anchor.linkCount + "|i:" + anchor.fieldIndex);
Rect debugRect = anchor.rect;
debugRect.xMax += 50;
if (anchor.anchorType == AnchorType.Output)
{
debugRect.x -= EditorStyles.label.CalcSize(debugContent).x;
}
EditorGUI.DrawRect(debugRect, Color.white * .8f);
GUI.Label(debugRect, debugContent);
}
}