Method UpdateKeyframes

Source/Editor/GUI/CurveEditor.cs:2356–2424

()

        /// <inheritdoc />
        public override void UpdateKeyframes()
        {
            if (_points.Count == 0)
            {
                // No keyframes
                _contents.Bounds = Rectangle.Empty;
                return;
            }

            _mainPanel.LockChildrenRecursive();

            // Place keyframes
            Rectangle curveContentAreaBounds = _mainPanel.GetClientArea();
            var viewScale = ViewScale;
            var pointsSize = _showCollapsed ? new Float2(4.0f / viewScale.X, Height - 2.0f) : KeyframesSize / viewScale;
            for (int i = 0; i < _points.Count; i++)
            {
                var p = _points[i];
                var k = _keyframes[p.Index];
                var point = GetKeyframePoint(ref k, p.Component);
                var location = new Float2
                (
                 point.X * UnitsPerSecond - pointsSize.X * 0.5f,
                 point.Y * -UnitsPerSecond - pointsSize.Y * 0.5f + curveContentAreaBounds.Height
                );
                if (_showCollapsed)
                {
                    location.Y = 1.0f;
                    p.Visible = p.Component == 0;
                }
                else
                {
                    p.Visible = true;
                }
                p.Bounds = new Rectangle(location, pointsSize);
            }

            // Calculate bounds
            var bounds = _points[0].Bounds;
            for (int i = 1; i < _points.Count; i++)
                bounds = Rectangle.Union(bounds, _points[i].Bounds);

            // Adjust contents bounds to fill the curve area
            if (EnablePanning != UseMode.Off || !ShowCollapsed)
            {
                bounds.Width = Mathf.Max(bounds.Width, 1.0f);
                bounds.Height = Mathf.Max(bounds.Height, 1.0f);
                bounds.Location = ApplyUseModeMask(EnablePanning, bounds.Location, _contents.Location);
                bounds.Size = ApplyUseModeMask(EnablePanning, bounds.Size, _contents.Size);
                if (!_contents._isMovingSelection)
                    _contents.Bounds = bounds;
            }
            else if (_contents.Bounds == Rectangle.Empty)
            {
                _contents.Bounds = Rectangle.Union(bounds, new Rectangle(Float2.Zero, Float2.One));
            }

            // Offset the keyframes (parent container changed its location)