public void SelectPoint(int i, SelectionType type)
{
switch (type)
{
case SelectionType.Additive:
m_ShapeEditor.activePoint = i;
m_SelectedPoints.Add(i);
break;
case SelectionType.Subtractive:
m_ShapeEditor.activePoint = i > 0 ? i - 1 : 0;
m_SelectedPoints.Remove(i);
break;
case SelectionType.Normal:
m_SelectedPoints.Clear();
m_ShapeEditor.activePoint = i;
m_SelectedPoints.Add(i);
break;
default:
m_ShapeEditor.activePoint = i; break;
}
m_ShapeEditor.Repaint();
}
public void RectSelect(Rect rect, SelectionType type)
{
if (type == SelectionType.Normal)
{
m_SelectedPoints.Clear();
m_ShapeEditor.activePoint = -1;
type = SelectionType.Additive;
}
for (int i = 0; i < m_ShapeEditor.GetPointsCount(); i++)
{
var p0 = m_ShapeEditor.GetPointPosition(i);
if (rect.Contains(p0))
{
SelectPoint(i, type);
}
}
m_ShapeEditor.Repaint();
}
public void OnGUI()
{
Event evt = Event.current;
Handles.BeginGUI();
Vector2 mousePos = evt.mousePosition;
int id = m_RectSelectionID;
switch (evt.GetTypeForControl(id))
{
case EventType.Layout:
if (!Tools.viewToolActive)
{
HandleUtility.AddDefaultControl(id);
}
break;
case EventType.MouseDown:
if (HandleUtility.nearestControl == id && evt.button == 0)
{
guiUtility.hotControl = id;
m_SelectStartPoint = mousePos;
}
break;
case EventType.MouseDrag:
if (guiUtility.hotControl == id)
{
if (!m_RectSelecting && (mousePos - m_SelectStartPoint).magnitude > k_MinSelectionSize)
{
m_RectSelecting = true;
}
if (m_RectSelecting)
{
m_SelectMousePoint = mousePos;
SelectionType type = SelectionType.Normal;
if (Event.current.control)
{
type = SelectionType.Subtractive;
}
else if (Event.current.shift)
{
type = SelectionType.Additive;
}
RectSelect(EditorGUIExt.FromToRect(m_SelectStartPoint, m_SelectMousePoint), type);
}
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;
guiUtility.keyboardControl = 0;
if (m_RectSelecting)
{
m_SelectMousePoint = new Vector2(mousePos.x, mousePos.y);
SelectionType type = SelectionType.Normal;
if (Event.current.control)
{
type = SelectionType.Subtractive;
}
else if (Event.current.shift)
{
type = SelectionType.Additive;
}
RectSelect(EditorGUIExt.FromToRect(m_SelectStartPoint, m_SelectMousePoint), type);
m_RectSelecting = false;
}
else
{
ClearSelection();
}
evt.Use();
}
break;
}
Handles.EndGUI();
}
