private void DrawPoint(int index, CurvePoint point)
{
Handles.color = point.Mode.GetPointColor();
var handle = point.GlobalPosition;
var size = HandleUtility.GetHandleSize(handle);
var handleRotation = Tools.pivotRotation == PivotRotation.Local ?
point.transform.rotation : Quaternion.identity;
if (Handles.Button(handle, point.transform.rotation, size * HANDLE_SIZE, size * PICK_SIZE, Handles.DotHandleCap))
{
_selectedIndex = index;
_selectedTangent = TangentPoint.None;
Repaint();
}
if (_selectedIndex == index && _selectedTangent == TangentPoint.None)
{
EditorGUI.BeginChangeCheck();
handle = Handles.DoPositionHandle(handle, handleRotation);
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObject(_curve, "Move point position");
EditorUtility.SetDirty(_curve);
point.Position = point.transform.InverseTransformPoint(handle);
}
}
}
private Vector3 DrawTangentPoint(int index, TangentPoint tangentPoint)
{
var point = _curve.points[index];
var handle = point.GetTangent(tangentPoint) + point.GlobalPosition;
var size = HandleUtility.GetHandleSize(handle);
var handleRotation = Tools.pivotRotation == PivotRotation.Local ?
point.transform.rotation : Quaternion.identity;
Handles.color = Color.gray;
Handles.DrawLine(point.GlobalPosition, handle);
Handles.color = point.Mode.GetTangentColor();
if (point.Mode != CurveMode.StraightLine &&
Handles.Button(handle, handleRotation, size * HANDLE_SIZE, size * PICK_SIZE, Handles.DotHandleCap))
{
_selectedIndex = index;
_selectedTangent = tangentPoint;
Repaint();
}
if (_selectedIndex == index && _selectedTangent == tangentPoint)
{
EditorGUI.BeginChangeCheck();
handle = Handles.DoPositionHandle(handle, handleRotation);
if (EditorGUI.EndChangeCheck())
{
Undo.RecordObject(_curve, "Move tangent point");
EditorUtility.SetDirty(_curve);
point.SetTangent(tangentPoint, handle - point.GlobalPosition);
point.EnforceTangents(tangentPoint);
}
}
return(handle);
}
/// <inheritdoc />
public override bool OnMouseDown(Vector2 location, MouseButton button)
{
if (base.OnMouseDown(location, button))
{
// Clear flags
_isMovingSelection = false;
_isMovingTangent = false;
_rightMouseDown = false;
_leftMouseDown = false;
return(true);
}
// Cache data
_isMovingSelection = false;
_isMovingTangent = false;
_mousePos = location;
if (button == MouseButton.Left)
{
_leftMouseDown = true;
_leftMouseDownPos = location;
}
if (button == MouseButton.Right)
{
_rightMouseDown = true;
_rightMouseDownPos = location;
_movingViewLastPos = location;
}
// Check if any node is under the mouse
var underMouse = GetChildAt(location);
if (underMouse is KeyframePoint keyframe)
{
if (_leftMouseDown)
{
// Check if user is pressing control
if (Root.GetKey(KeyboardKeys.Control))
{
// Add to selection
keyframe.IsSelected = true;
_editor.UpdateTangents();
}
// Check if node isn't selected
else if (!keyframe.IsSelected)
{
// Select node
_editor.ClearSelection();
keyframe.IsSelected = true;
_editor.UpdateTangents();
}
// Start moving selected nodes
StartMouseCapture();
_isMovingSelection = true;
_movedKeyframes = false;
var viewRect = _editor._mainPanel.GetClientArea();
_movingSelectionStart = PointToKeyframes(location, ref viewRect);
if (_movingSelectionOffsets == null || _movingSelectionOffsets.Length != _editor._points.Count)
{
_movingSelectionOffsets = new Vector2[_editor._points.Count];
}
for (int i = 0; i < _movingSelectionOffsets.Length; i++)
{
_movingSelectionOffsets[i] = _editor._points[i].Point - _movingSelectionStart;
}
_editor.OnEditingStart();
Focus();
Tooltip?.Hide();
return(true);
}
}
else if (underMouse is TangentPoint tangent && tangent.Visible)
{
if (_leftMouseDown)
{
// Start moving tangent
StartMouseCapture();
_isMovingTangent = true;
_movedKeyframes = false;
_movingTangent = tangent;
_editor.OnEditingStart();
Focus();
Tooltip?.Hide();
return(true);
}
}
/// <inheritdoc />
public override bool OnMouseDown(Vector2 location, MouseButton button)
{
if (base.OnMouseDown(location, button))
{
// Clear flags
_isMovingSelection = false;
_isMovingTangent = false;
_rightMouseDown = false;
_leftMouseDown = false;
return(true);
}
// Cache data
_isMovingSelection = false;
_isMovingTangent = false;
_mousePos = location;
if (button == MouseButton.Left)
{
_leftMouseDown = true;
_leftMouseDownPos = location;
}
if (button == MouseButton.Right)
{
_rightMouseDown = true;
_rightMouseDownPos = location;
_movingViewLastPos = location;
}
// Check if any node is under the mouse
var underMouse = GetChildAt(location);
if (underMouse is KeyframePoint keyframe)
{
if (_leftMouseDown)
{
if (Root.GetKey(KeyboardKeys.Control))
{
// Toggle selection
keyframe.IsSelected = !keyframe.IsSelected;
_editor.UpdateTangents();
}
else if (Root.GetKey(KeyboardKeys.Shift))
{
// Select range
keyframe.IsSelected = true;
int selectionStart = 0;
for (; selectionStart < _editor._points.Count; selectionStart++)
{
if (_editor._points[selectionStart].IsSelected)
{
break;
}
}
int selectionEnd = _editor._points.Count - 1;
for (; selectionEnd > selectionStart; selectionEnd--)
{
if (_editor._points[selectionEnd].IsSelected)
{
break;
}
}
selectionStart++;
for (; selectionStart < selectionEnd; selectionStart++)
{
_editor._points[selectionStart].IsSelected = true;
}
_editor.UpdateTangents();
}
else if (!keyframe.IsSelected)
{
// Select node
if (_editor.KeyframesEditorContext != null)
{
_editor.KeyframesEditorContext.OnKeyframesDeselect(_editor);
}
else
{
_editor.ClearSelection();
}
keyframe.IsSelected = true;
_editor.UpdateTangents();
}
if (_editor.ShowCollapsed)
{
// Synchronize selection for curve points when collapsed so all points fo the keyframe are selected
for (var i = 0; i < _editor._points.Count; i++)
{
var p = _editor._points[i];
if (p.Index == keyframe.Index)
{
p.IsSelected = keyframe.IsSelected;
}
}
}
StartMouseCapture();
Focus();
Tooltip?.Hide();
return(true);
}
}
else if (underMouse is TangentPoint tangent && tangent.Visible)
{
if (_leftMouseDown)
{
// Start moving tangent
StartMouseCapture();
_isMovingTangent = true;
_movedKeyframes = false;
_movingTangent = tangent;
_editor.OnEditingStart();
Focus();
Tooltip?.Hide();
return(true);
}
}