public override void OnInspectorGUI()
{
string weightedSetTypeName = typeof(TWeightedSet).FullName;
string itemTypeName = typeof(TWeightedSetItem).FullName;
var setContainer = this.target as IWeightedSetContainer <TWeightedSet, TWeightedSetItem>;
ThrowIf.Null(
setContainer,
"WeightedSetEditor<{0}, {1}> target does not implement IWeightedSetContainer<{0}, {1}>.",
weightedSetTypeName,
itemTypeName);
List <TWeightedSetItem> items = setContainer.WeightedSet.Items;
List <float> weights = setContainer.WeightedSet.Weights;
ThrowIf.True(items.Count != weights.Count, "Mismatched number of items and wieghts.");
GUILayout.BeginVertical();
this.IsItemsExpanded = EditorGUILayout.Foldout(this.IsItemsExpanded, new GUIContent("Items"));
if (this.IsItemsExpanded)
{
EditorGUI.indentLevel++;
GUILayout.BeginHorizontal();
GUI.skin.label.normal.textColor = Color.grey;
GUILayout.Space(92);
GUILayout.Label(itemTypeName);
GUILayout.Label("Weight", GUI.skin.label, GUILayout.Width(72));
GUI.skin.label.normal.textColor = Color.black;
GUILayout.EndHorizontal();
for (var i = 0; i < setContainer.WeightedSet.Count; ++i)
{
var rowStyle = new GUIStyle(GUI.skin.label);
string itemControlName = string.Format("WeightedLayoutSetItem{0}", i);
string weightControlName = string.Format("WeightedLayoutSetItemWeight{0}", i);
string currentFocusedControlName = GUI.GetNameOfFocusedControl();
if (currentFocusedControlName == itemControlName || currentFocusedControlName == weightControlName)
{
rowStyle.normal.background = Texture2D.whiteTexture;
}
GUILayout.BeginHorizontal(rowStyle);
GUILayout.Label(string.Format("Element {0}:", i), GUI.skin.label, GUILayout.Width(72));
EditorGUI.BeginChangeCheck();
GUI.SetNextControlName(itemControlName);
var newItem = (TWeightedSetItem)EditorGUILayout.ObjectField(items[i], typeof(TWeightedSetItem), false);
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObject(this.target, string.Format("Change weighted set item {0}", i));
items[i] = newItem;
}
EditorGUI.BeginChangeCheck();
GUI.SetNextControlName(weightControlName);
weights[i] = EditorGUILayout.FloatField(weights[i], GUILayout.Width(60));
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObject(this.target, string.Format("Change weighted set weight {0}", i));
items[i] = newItem;
}
if (GUILayout.Button("X", GUI.skin.button, GUILayout.Width(20)))
{
Undo.RecordObject(this.target, string.Format("Remove item from weighted set", i));
setContainer.WeightedSet.Remove(items[i]);
}
GUILayout.EndHorizontal();
if (GUIEx.WasClicked(GUILayoutUtility.GetLastRect()))
{
if (Event.current.button == 0)
{
GUI.FocusControl(itemControlName);
this.Repaint();
}
if (Event.current.button == 1)
{
// Now create the menu, add items and show it
GenericMenu menu = new GenericMenu();
menu.AddItem(
new GUIContent("Delete Element"),
false,
index =>
{
setContainer.WeightedSet.Remove(items[(int)index]);
},
i);
menu.AddItem(
new GUIContent("Duplicate Element"),
false,
index =>
{
setContainer.WeightedSet.Insert((int)index + 1, items[(int)index], weights[(int)index]);
},
i);
Event.current.Use();
menu.ShowAsContext();
}
}
}
GUIEx.PushTooltip("Add new item to the weighted set.");
if (GUILayout.Button("+"))
{
Undo.RecordObject(this.target, "Add new item to the weighted set");
setContainer.WeightedSet.Add(null, 1.0f);
}
GUIEx.PopTooltip();
EditorGUI.indentLevel--;
}
GUILayout.EndVertical();
}