public static Option <UMake> Get()
{
instance = instance.OrElse(() => AssetDatabaseHelper.FindAssetOfType <UMake>());
return(instance);
}
private void OnGUI()
{
ShortcutsReferences references;
if (!shortcutsReferences.OrElse(() => AssetDatabaseHelper.FindAssetOfType <ShortcutsReferences>()).TryGet(out references))
{
return;
}
var areaRect = new Rect(position);
areaRect.position = Vector2.zero;
GUILayout.BeginArea(areaRect);
const float padding = 8.0f;
const float size = 80.0f;
var currentEvent = Event.current;
var eventType = currentEvent.type;
var clickCount = currentEvent.clickCount;
var holdingControl = currentEvent.control;
var mousePosition = currentEvent.mousePosition;
var clickedItem = false;
var columnCount = Mathf.Max(Mathf.FloorToInt(areaRect.width / size), 1);
references.assets.RemoveAll(a => a == null);
for (int i = 0; i < references.assets.Count; i++)
{
var a = references.assets[i];
if (a == null)
{
continue;
}
var previewTexture = AssetPreview.GetAssetPreview(a);
if (previewTexture == null)
{
previewTexture = AssetPreview.GetMiniThumbnail(a);
}
var x = (i % columnCount) * size + padding * 0.5f;
var y = (i / columnCount) * size + padding * 0.5f;
var totalRect = new Rect(x, y, size, size);
// Click item
if (clickCount > 0 && totalRect.Contains(mousePosition))
{
clickedItem = true;
if (clickCount == 1 && holdingControl)
{
var selected = Selection.objects;
if (!ArrayUtility.Contains(selected, a))
{
ArrayUtility.Add(ref selected, a);
Selection.objects = selected;
}
}
else
{
Selection.activeObject = a;
}
if (clickCount > 1)
{
AssetDatabase.OpenAsset(a);
}
Repaint();
}
bool isSelected = Selection.Contains(a);
if (isSelected)
{
EditorGUI.DrawRect(totalRect, Colors.SelectionColor);
}
// Preview texture
var maxPreviewTextureSize = size - EditorGUIUtility.singleLineHeight;
var previewTextureSize = Mathf.Min(previewTexture.height, maxPreviewTextureSize);
var previewRect = new Rect(x + (size - previewTextureSize) * 0.5f, y, size, previewTextureSize);
GUI.Label(previewRect, previewTexture);
// Centered label
var labelStyle = isSelected ? EditorStyles.whiteLabel : EditorStyles.label;
var labelContent = new GUIContent(a.name);
var labelTextSize = labelStyle.CalcSize(labelContent);
labelTextSize.x = Mathf.Min(labelTextSize.x, size);
var labelRect = new Rect(x + (size - labelTextSize.x) * 0.5f, y + previewTextureSize, size, EditorGUIUtility.singleLineHeight);
GUI.Label(labelRect, labelContent, labelStyle);
}
GUILayout.EndArea();
// Clear selection
if (clickCount > 0 && !clickedItem)
{
Selection.objects = new Object[0];
Repaint();
}
// Delete
if (eventType == EventType.KeyUp && currentEvent.keyCode == KeyCode.Delete)
{
Undo.RecordObject(references, UndoString);
for (int i = 0; i < references.assets.Count; i++)
{
var a = references.assets[i];
if (Selection.Contains(a))
{
references.assets.RemoveAt(i);
}
}
EditorUtility.SetDirty(references);
Repaint();
}
// Drag and drop
if (eventType == EventType.MouseDrag)
{
var selected = Selection.objects;
if (selected.Length > 0)
{
DragAndDrop.PrepareStartDrag();
DragAndDrop.objectReferences = selected;
DragAndDrop.StartDrag(DragString);
Event.current.Use();
}
}
else if (eventType == EventType.DragUpdated || eventType == EventType.DragPerform)
{
bool anyFromProject = DragAndDrop.objectReferences.Any(o => !string.IsNullOrEmpty(AssetDatabase.GetAssetPath(o)));
if (anyFromProject)
{
DragAndDrop.visualMode = DragAndDropVisualMode.Copy;
}
if (eventType == EventType.DragPerform)
{
DragAndDrop.AcceptDrag();
var x = Mathf.FloorToInt(mousePosition.x / size);
var y = Mathf.FloorToInt(mousePosition.y / size);
var index = y * columnCount + x;
Undo.RecordObject(references, UndoString);
foreach (var o in DragAndDrop.objectReferences)
{
if (string.IsNullOrEmpty(AssetDatabase.GetAssetPath(o)))
{
continue;
}
if (references.assets.Contains(o))
{
references.assets.Remove(o);
}
if (index >= references.assets.Count)
{
references.assets.Add(o);
}
else
{
references.assets.Insert(index, o);
}
index++;
}
EditorUtility.SetDirty(references);
}
Event.current.Use();
}
}
