void CompleteRectSelection()
{
EditorApplication.modifierKeysChanged -= SendCommandsOnModifierKeys;
m_RectSelecting = false;
ActiveEditorTracker.delayFlushDirtyRebuild = false;
ActiveEditorTracker.RebuildAllIfNecessary();
m_SelectionStart = new Object[0];
rectSelectionFinished();
}
public void OnGUI()
{
Event evt = Event.current;
Handles.BeginGUI();
Vector2 mousePos = evt.mousePosition;
int id = s_RectSelectionID;
switch (evt.GetTypeForControl(id))
{
case EventType.Layout:
case EventType.MouseMove:
if (!Tools.viewToolActive)
{
HandleUtility.AddDefaultControl(id);
}
break;
case EventType.MouseDown:
if (HandleUtility.nearestControl == id && evt.button == 0)
{
GUIUtility.hotControl = id;
m_SelectStartPoint = mousePos;
m_SelectionStart = Selection.objects;
m_RectSelecting = false;
}
break;
case EventType.MouseDrag:
if (GUIUtility.hotControl == id)
{
if (!m_RectSelecting && (mousePos - m_SelectStartPoint).magnitude > 6f)
{
EditorApplication.modifierKeysChanged += SendCommandsOnModifierKeys;
m_RectSelecting = true;
ActiveEditorTracker.delayFlushDirtyRebuild = true;
m_LastSelection = null;
m_CurrentSelection = null;
rectSelectionStarting();
}
if (m_RectSelecting)
{
m_SelectMousePoint = new Vector2(Mathf.Max(mousePos.x, 0), Mathf.Max(mousePos.y, 0));
GameObject[] rectObjs = HandleUtility.PickRectObjects(EditorGUIExt.FromToRect(m_SelectStartPoint, m_SelectMousePoint));
m_CurrentSelection = rectObjs;
bool setIt = false;
if (m_LastSelection == null)
{
m_LastSelection = new Dictionary <GameObject, bool>();
setIt = true;
}
setIt |= m_LastSelection.Count != rectObjs.Length;
if (!setIt)
{
Dictionary <GameObject, bool> set = new Dictionary <GameObject, bool>(rectObjs.Length);
foreach (GameObject g in rectObjs)
{
set.Add(g, false);
}
foreach (GameObject g in m_LastSelection.Keys)
{
if (!set.ContainsKey(g))
{
setIt = true;
break;
}
}
}
if (setIt)
{
m_LastSelection = new Dictionary <GameObject, bool>(rectObjs.Length);
foreach (GameObject g in rectObjs)
{
m_LastSelection.Add(g, false);
}
if (evt.shift)
{
UpdateSelection(m_SelectionStart, rectObjs, SelectionType.Additive, m_RectSelecting);
}
else if (EditorGUI.actionKey)
{
UpdateSelection(m_SelectionStart, rectObjs, SelectionType.Subtractive, m_RectSelecting);
}
else
{
UpdateSelection(m_SelectionStart, rectObjs, SelectionType.Normal, m_RectSelecting);
}
}
}
evt.Use();
}
break;
case EventType.Repaint:
if (GUIUtility.hotControl == id && m_RectSelecting)
{
EditorStyles.selectionRect.Draw(EditorGUIExt.FromToRect(m_SelectStartPoint, m_SelectMousePoint), GUIContent.none, false, false, false, false);
}
break;
case EventType.MouseUp:
if (GUIUtility.hotControl == id && evt.button == 0)
{
GUIUtility.hotControl = 0;
if (m_RectSelecting)
{
EditorApplication.modifierKeysChanged -= SendCommandsOnModifierKeys;
m_RectSelecting = false;
ActiveEditorTracker.delayFlushDirtyRebuild = false;
ActiveEditorTracker.RebuildAllIfNecessary();
m_SelectionStart = new Object[0];
rectSelectionFinished();
evt.Use();
}
else
{
if (evt.shift || EditorGUI.actionKey)
{
// For shift, we check if EXACTLY the active GO is hovered by mouse and then subtract. Otherwise additive.
// For control/cmd, we check if ANY of the selected GO is hovered by mouse and then subtract. Otherwise additive.
// Control/cmd takes priority over shift.
GameObject hovered = HandleUtility.PickGameObject(evt.mousePosition, false);
if (EditorGUI.actionKey ? Selection.gameObjects.Contains(hovered) : Selection.activeGameObject == hovered)
{
UpdateSelection(m_SelectionStart, hovered, SelectionType.Subtractive, m_RectSelecting);
}
else
{
UpdateSelection(m_SelectionStart, HandleUtility.PickGameObject(evt.mousePosition, true), SelectionType.Additive, m_RectSelecting);
}
}
else // With no modifier keys, we do the "cycle through overlapped" picking logic in SceneViewPicking.cs
{
GameObject picked = SceneViewPicking.PickGameObject(evt.mousePosition);
UpdateSelection(m_SelectionStart, picked, SelectionType.Normal, m_RectSelecting);
}
evt.Use();
}
}
break;
case EventType.ExecuteCommand:
if (id == GUIUtility.hotControl && evt.commandName == EventCommandNames.ModifierKeysChanged)
{
if (evt.shift)
{
UpdateSelection(m_SelectionStart, m_CurrentSelection, SelectionType.Additive, m_RectSelecting);
}
else if (EditorGUI.actionKey)
{
UpdateSelection(m_SelectionStart, m_CurrentSelection, SelectionType.Subtractive, m_RectSelecting);
}
else
{
UpdateSelection(m_SelectionStart, m_CurrentSelection, SelectionType.Normal, m_RectSelecting);
}
evt.Use();
}
break;
}
Handles.EndGUI();
}
