private Rect DrawFoldable(Rect rect, MetadataWrapper wrapper, Action <object> changeValueCallback, GUIContent label, bool isPartOfHeader)
{
if (wrapper.Metadata[foldableName] == null)
{
wrapper.Metadata[foldableName] = true;
changeValueCallback(wrapper);
}
bool oldIsFoldedOutValue = (bool)wrapper.Metadata[foldableName];
GUIStyle foldoutStyle = new GUIStyle(EditorStyles.foldout)
{
fontStyle = FontStyle.Bold,
fontSize = 12
};
GUIStyle labelStyle = new GUIStyle(EditorStyles.label)
{
fontStyle = FontStyle.Bold,
fontSize = 12
};
Rect foldoutRect = new Rect(rect.x, rect.y, rect.width, EditorDrawingHelper.HeaderLineHeight);
if (isPartOfHeader)
{
EditorGUI.DrawRect(new Rect(0, foldoutRect.y, foldoutRect.width + foldoutRect.x + 8, foldoutRect.height), new Color(62f / 256f, 62f / 256f, 62f / 256f));
EditorGUI.DrawRect(new Rect(0, foldoutRect.y, foldoutRect.width + foldoutRect.x + 8, 1), new Color(26f / 256f, 26f / 256f, 26f / 256f));
EditorGUI.DrawRect(new Rect(0, foldoutRect.y + foldoutRect.height, foldoutRect.width + foldoutRect.x + 8, 1), new Color(48f / 256f, 48f / 256f, 48f / 256f));
}
bool newIsFoldedOutValue = EditorDrawingHelper.DrawFoldoutWithReducedFocusArea(foldoutRect, oldIsFoldedOutValue, oldIsFoldedOutValue ? new GUIContent() : label, foldoutStyle, labelStyle);
if (newIsFoldedOutValue != oldIsFoldedOutValue)
{
wrapper.Metadata[foldableName] = newIsFoldedOutValue;
changeValueCallback(wrapper);
}
// Collapsed
if (newIsFoldedOutValue == false)
{
rect.height = EditorDrawingHelper.HeaderLineHeight;
return(rect);
}
rect.height = 0f;
Rect wrappedRect = rect;
wrappedRect.x += EditorDrawingHelper.IndentationWidth;
wrappedRect.width -= EditorDrawingHelper.IndentationWidth;
return(DrawRecursively(wrappedRect, wrapper, foldableName, (newWrapper) =>
{
// We want the user to be aware that value has changed even if the foldable was collapsed (for example, undo/redo).
wrapper.Metadata[foldableName] = true;
changeValueCallback(wrapper);
}, label));
}
