public void DrawElement(Event e, Object selectedObject, int index, out List <Object> newSelection, out bool dropAccepted)
{
dropAccepted = false;
EditorGUILayout.BeginVertical();
Texture2D texture = null;
if (selectedObject != null)
{
texture = AssetPreview.GetAssetPreview(selectedObject);
if (texture == null)
{
if (AssetPreview.IsLoadingAssetPreview(selectedObject.GetInstanceID()))
{
// Not loaded yet, so tell it to repaint
Repaint();
}
else
{
//texture = AssetPreview.GetMiniTypeThumbnail(selectedObject.GetType());
texture = AssetPreview.GetMiniThumbnail(selectedObject);
}
}
}
Rect previewRect;
Rect insertAfterRect;
if (UseCells)
{
GUIStyle style = new GUIStyle(GUI.skin.box);
style.padding = new RectOffset(0, 0, 0, 0);
style.alignment = TextAnchor.MiddleCenter;
if (texture != null)
{
GUILayout.Box(texture, style, GUILayout.Width(width), GUILayout.Height(width));
}
else
{
GUILayout.Box("Drag an object here", style, GUILayout.Width(width), GUILayout.Height(width));
}
previewRect = GUILayoutUtility.GetLastRect();
insertAfterRect = new Rect(previewRect.xMax, previewRect.y, 8, previewRect.height);
selectedObject = EditorGUILayout.ObjectField(selectedObject, TypeFilter, false, GUILayout.Width(width));
}
else
{
selectedObject = EditorGUILayout.ObjectField(selectedObject, TypeFilter, false);
previewRect = GUILayoutUtility.GetLastRect();
insertAfterRect = new Rect(previewRect.xMin, previewRect.yMax, previewRect.width, 8);
}
if (dropInTargetIndex == index)
{
if (dropInType == DropInType.InsertAfter)
{
DrawOutline(insertAfterRect, 2, Color.blue);
}
else
{
DrawOutline(previewRect, 2, Color.blue);
}
}
bool mouseInRect = previewRect.Contains(e.mousePosition);
bool mouseInInsertAfterRect = insertAfterRect.Contains(e.mousePosition);
if (mouseInRect && e.type == EventType.MouseDown)
{
mouseDownIndex = index;
}
if (mouseInRect && e.type == EventType.MouseUp && !isDragging)
{
if (e.button == 0)
{
OnItemClick(selectedObject);
}
else
{
if (selectedObject == null)
{
deferredIndexToRemove = index;
}
else
{
selectedObject = null;
}
Repaint();
}
}
if (mouseInRect && e.type == EventType.MouseDown && !isDragging)
{
if (e.button == 0)
{
if (e.clickCount == 2 && selectedObject != null)
{
if (selectedObject.GetType() == typeof(SceneAsset))
{
if (EditorSceneManager.SaveCurrentModifiedScenesIfUserWantsTo())
{
EditorSceneManager.OpenScene(AssetDatabase.GetAssetPath(selectedObject), OpenSceneMode.Single);
}
}
else if (typeof(RuntimeAnimatorController).IsAssignableFrom(selectedObject.GetType()))
{
SetAnimatorWindow(selectedObject);
}
else if (selectedObject.GetType() == typeof(DefaultAsset))
{
// Something without a strong Unity type, could be a folder
if (ProjectWindowUtil.IsFolder(selectedObject.GetInstanceID()))
{
SetProjectWindowFolder(AssetDatabase.GetAssetPath(selectedObject));
}
}
else
{
AssetDatabase.OpenAsset(selectedObject);
}
}
}
}
if (e.type == EventType.DragUpdated || e.type == EventType.DragPerform)
{
if (DragAndDrop.objectReferences.Length > 0 &&
(DragAndDrop.objectReferences[0].GetType() == TypeFilter || DragAndDrop.objectReferences[0].GetType().IsSubclassOf(TypeFilter)))
{
if (mouseInRect || mouseInInsertAfterRect)
{
DragAndDrop.visualMode = DragAndDropVisualMode.Copy;
if (e.type == EventType.DragPerform)
{
DragAndDrop.AcceptDrag();
selectedObject = DragAndDrop.objectReferences[0];
dropAccepted = true;
}
else
{
dropInTargetIndex = index;
dropInType = mouseInInsertAfterRect ? DropInType.InsertAfter : DropInType.Replace;
}
Repaint();
}
}
}
EditorGUILayout.EndVertical();
newSelection = new List <Object> {
selectedObject
};
}
void OnGUI()
{
Event e = Event.current;
//Debug.Log(e.type);
#if UNITY_5_4_OR_NEWER
int columnCount = (int)(Screen.width / EditorGUIUtility.pixelsPerPoint) / (width + SPACING);
#else
int columnCount = Screen.width / (width + SPACING);
#endif
List <Object> selectedObjects = tabs[activeTab].selectedObjects;
scrollPosition = EditorGUILayout.BeginScrollView(scrollPosition);
GUILayout.Space(8);
//GUILayout.Box(new GUIContent(), GUILayout.ExpandWidth(true));
// Make sure there's an empty one at the end to drag into
if (selectedObjects.Count == 0 || selectedObjects[selectedObjects.Count - 1] != null)
{
selectedObjects.Add(null);
}
if (e.rawType == EventType.MouseUp || e.rawType == EventType.MouseMove || e.rawType == EventType.DragUpdated || e.rawType == EventType.ScrollWheel)
{
dropInTargetIndex = -1;
dropInType = DropInType.Replace;
}
List <Object> deferredInsertObjects = null;
int deferredInsertIndex = -1;
for (int i = 0; i < selectedObjects.Count; i++)
{
int columnIndex = i % columnCount;
if (UseCells && columnIndex == 0)
{
EditorGUILayout.BeginHorizontal();
GUILayout.Space(8);
}
List <Object> newSelectedObjects = null;
bool dropAccepted = false;
DrawElement(e, selectedObjects[i], i, out newSelectedObjects, out dropAccepted);
if (dropAccepted || newSelectedObjects.Count > 1 || newSelectedObjects[0] != selectedObjects[i])
{
if (dropInType == DropInType.InsertAfter)
{
// Defer the insert until after we've drawn the UI so we don't mismatch UI mid-draw
deferredInsertIndex = i + 1;
deferredInsertObjects = newSelectedObjects;
}
else
{
selectedObjects[i] = newSelectedObjects[0];
if (newSelectedObjects.Count > 1)
{
deferredInsertIndex = i + 1;
newSelectedObjects.RemoveAt(0);
deferredInsertObjects = newSelectedObjects;
}
Save(activeTab);
}
}
if (UseCells)
{
GUILayout.Space(4);
}
else
{
GUILayout.Space(8);
}
if (UseCells && (columnIndex == columnCount - 1 || i == selectedObjects.Count - 1)) // If last in row
{
GUILayout.FlexibleSpace();
EditorGUILayout.EndHorizontal();
}
}
if (e.type == EventType.MouseDrag && !isDragging && mouseDownIndex != -1 && selectedObjects[mouseDownIndex] != null)
{
isDragging = true;
DragAndDrop.PrepareStartDrag();
DragAndDrop.objectReferences = new Object[] { selectedObjects[mouseDownIndex] };
// DragAndDrop.paths = new string[] { selectedObjects[mouseDownIndex] };
DragAndDrop.StartDrag(selectedObjects[mouseDownIndex].name);
}
if (e.rawType == EventType.MouseUp || e.rawType == EventType.MouseMove || e.rawType == EventType.DragPerform || e.rawType == EventType.DragExited)
{
isDragging = false;
mouseDownIndex = -1;
}
EditorGUILayout.EndScrollView();
GUILayout.FlexibleSpace();
GUIStyle boxStyle = new GUIStyle(GUI.skin.box);
boxStyle.margin = new RectOffset(0, 0, 0, 0);
RectOffset padding = boxStyle.padding;
padding.top += 1;
boxStyle.padding = padding;
GUILayout.Box(new GUIContent(), boxStyle, GUILayout.ExpandWidth(true));
Rect lastRect = GUILayoutUtility.GetLastRect();
Rect buttonRect = lastRect;
buttonRect.y += 1;
buttonRect.width = (buttonRect.width - 90) / 9f;
GUIStyle activeStyle = EditorStyles.toolbarButton;
buttonRect.height = activeStyle.CalcHeight(new GUIContent(), 20);
for (int i = 0; i < 9; i++)
{
string tabName = (i + 1).ToString();
if (!string.IsNullOrEmpty(tabs[i].Name))
{
tabName = tabs[i].Name;
}
bool oldValue = (activeTab == i);
if (oldValue == true && editingTabName)
{
GUI.SetNextControlName("PaletteTabName");
tabs[activeTab].Name = GUI.TextField(buttonRect, tabs[activeTab].Name);
if (!hotControl.HasValue)
{
hotControl = GUIUtility.hotControl;
GUI.FocusControl("PaletteTabName");
}
else
{
if (GUIUtility.hotControl != hotControl.Value || // Clicked off it
Event.current.type == EventType.KeyDown && Event.current.character == (char)10) // Return pressed
{
editingTabName = false;
hotControl = null;
}
}
}
else
{
bool newValue = GUI.Toggle(buttonRect, oldValue, tabName, activeStyle);
if (newValue != oldValue)
{
if (newValue == true)
{
activeTab = i;
Repaint();
editingTabName = false;
}
else if (newValue == false)
{
editingTabName = true;
hotControl = null;
}
}
}
buttonRect.x += buttonRect.width;
}
// Debug.Log(GUI.GetNameOfFocusedControl());
// if(GUI.GetNameOfFocusedControl() != "PaletteTabName")
// {
// editingTabName = false;
// }
Rect sliderRect = lastRect;
sliderRect.xMax -= 10;
sliderRect.xMin = sliderRect.xMax - 60;
// User configurable tile size
width = (int)GUI.HorizontalSlider(sliderRect, width, 49, 100);
// Delete at the end of the OnGUI so we don't mismatch any UI groups
if (deferredIndexToRemove != -1)
{
selectedObjects.RemoveAt(deferredIndexToRemove);
deferredIndexToRemove = -1;
Save(activeTab);
}
// Insert at the end of the OnGUI so we don't mismatch any UI groups
if (deferredInsertObjects != null)
{
selectedObjects.InsertRange(deferredInsertIndex, deferredInsertObjects);
Save(activeTab);
}
// Carried out a DragPerform, so reset drop in states
if (e.rawType == EventType.DragPerform)
{
dropInTargetIndex = -1;
dropInType = DropInType.Replace;
Repaint();
}
}
void OnGUI()
{
Event e = Event.current;
//Debug.Log(e.type);
#if UNITY_5_4_OR_NEWER
int columnCount = (int)(Screen.width / EditorGUIUtility.pixelsPerPoint) / (width + SPACING);
#else
int columnCount = Screen.width / (width + SPACING);
#endif
scrollPosition = EditorGUILayout.BeginScrollView(scrollPosition);
GUILayout.Space(8);
//GUILayout.Box(new GUIContent(), GUILayout.ExpandWidth(true));
// Make sure there's an empty one at the end to drag into
if (selectedObjects.Count == 0 || selectedObjects[selectedObjects.Count - 1] != null)
{
selectedObjects.Add(null);
}
if (e.rawType == EventType.MouseUp || e.rawType == EventType.MouseMove || e.rawType == EventType.DragUpdated)
{
dropInTargetIndex = -1;
dropInType = DropInType.Replace;
}
Object deferredInsertObject = null;
int deferredInsertIndex = -1;
for (int i = 0; i < selectedObjects.Count; i++)
{
int columnIndex = i % columnCount;
if (columnIndex == 0)
{
EditorGUILayout.BeginHorizontal();
GUILayout.Space(8);
}
Object newSelectedObject = null;
bool dropAccepted = false;
DrawElement(e, selectedObjects[i], i, out newSelectedObject, out dropAccepted);
if (dropAccepted || newSelectedObject != selectedObjects[i])
{
if (dropInType == DropInType.InsertAfter)
{
// Defer the insert until after we've drawn the UI so we don't mismatch UI mid-draw
deferredInsertIndex = i + 1;
deferredInsertObject = newSelectedObject;
}
else if (newSelectedObject != selectedObjects[i])
{
selectedObjects[i] = newSelectedObject;
Save();
}
}
GUILayout.Space(4);
if (columnIndex == columnCount - 1 || i == selectedObjects.Count - 1) // If last in row
{
GUILayout.FlexibleSpace();
EditorGUILayout.EndHorizontal();
}
}
if (e.type == EventType.MouseDrag && !isDragging && mouseDownIndex != -1 && selectedObjects[mouseDownIndex] != null)
{
isDragging = true;
DragAndDrop.PrepareStartDrag();
DragAndDrop.objectReferences = new Object[] { selectedObjects[mouseDownIndex] };
// DragAndDrop.paths = new string[] { selectedObjects[mouseDownIndex] };
DragAndDrop.StartDrag(selectedObjects[mouseDownIndex].name);
}
if (e.rawType == EventType.MouseUp || e.rawType == EventType.MouseMove || e.rawType == EventType.DragPerform || e.rawType == EventType.DragExited)
{
isDragging = false;
mouseDownIndex = -1;
}
EditorGUILayout.EndScrollView();
GUILayout.FlexibleSpace();
GUIStyle boxStyle = new GUIStyle(GUI.skin.box);
boxStyle.margin = new RectOffset(0, 0, 0, 0);
GUILayout.Box(new GUIContent(), boxStyle, GUILayout.ExpandWidth(true));
Rect lastRect = GUILayoutUtility.GetLastRect();
lastRect.xMax -= 10;
lastRect.xMin = lastRect.xMax - 60;
// User configurable tile size
width = (int)GUI.HorizontalSlider(lastRect, width, 50, 100);
// Delete at the end of the OnGUI so we don't mismatch any UI groups
if (deferredIndexToRemove != -1)
{
selectedObjects.RemoveAt(deferredIndexToRemove);
deferredIndexToRemove = -1;
Save();
}
// Insert at the end of the OnGUI so we don't mismatch any UI groups
if (deferredInsertObject != null)
{
selectedObjects.Insert(deferredInsertIndex, deferredInsertObject);
Save();
}
// Carried out a DragPerform, so reset drop in states
if (e.rawType == EventType.DragPerform)
{
dropInTargetIndex = -1;
dropInType = DropInType.Replace;
}
}
