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Merge branch 'treenode_optimize' of https://github.com/GoaLitiuM/FlaxEngine into GoaLitiuM-treenode_optimize

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This commit is contained in:
Wojtek Figat
2024-04-25 17:18:54 +02:00
parent 4413af5d20 4dcdd8b5f7
commit 3641e156ee
8 changed files with 91 additions and 16 deletions
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74
Source/Editor/GUI/Tree/TreeNode.cs
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@@ -38,7 +38,6 @@ namespace FlaxEditor.GUI.Tree
private bool _isMouseDown;
private float _mouseDownTime;
private Float2 _mouseDownPos;
private Color _cachedTextColor;
private DragItemPositioning _dragOverMode;
private bool _isDragOverHeader;
@@ -604,9 +603,6 @@ namespace FlaxEditor.GUI.Tree
/// <inheritdoc />
public override void Update(float deltaTime)
{
// Cache text color
_cachedTextColor = CacheTextColor();
// Drop/down animation
if (_animationProgress < 1.0f)
{
@@ -676,7 +672,8 @@ namespace FlaxEditor.GUI.Tree
}
// Draw text
Render2D.DrawText(TextFont.GetFont(), _text, textRect, _cachedTextColor, TextAlignment.Near, TextAlignment.Center);
Color textColor = CacheTextColor();
Render2D.DrawText(TextFont.GetFont(), _text, textRect, textColor, TextAlignment.Near, TextAlignment.Center);
// Draw drag and drop effect
if (IsDragOver && _tree.DraggedOverNode == this)
@@ -712,6 +709,71 @@ namespace FlaxEditor.GUI.Tree
}
}
/// <inheritdoc />
protected override void DrawChildren()
{
// Draw all visible child controls
var children = _children;
if (children.Count == 0)
return;
if (CullChildren)
{
Render2D.PeekClip(out var globalClipping);
Render2D.PeekTransform(out var globalTransform);
// Try to estimate the rough location of the first node, assuming the node height is constant
var firstChildGlobalRect = GetChildGlobalRectangle(children[0], ref globalTransform);
var firstVisibleChild = Math.Clamp((int)Math.Floor((globalClipping.Y - firstChildGlobalRect.Top) / firstChildGlobalRect.Height) + 1, 0, children.Count - 1);
if (GetChildGlobalRectangle(children[firstVisibleChild], ref globalTransform).Top > globalClipping.Top)
{
// Overshoot...
for (; firstVisibleChild > 0; firstVisibleChild--)
{
var child = children[firstVisibleChild];
if (GetChildGlobalRectangle(child, ref globalTransform).Top < globalClipping.Top)
break;
}
}
for (int i = firstVisibleChild; i < children.Count; i++)
{
var child = children[i];
if (child.Visible)
{
var childGlobalRect = GetChildGlobalRectangle(child, ref globalTransform);
if (globalClipping.Intersects(ref childGlobalRect))
{
Render2D.PushTransform(ref child._cachedTransform);
child.Draw();
Render2D.PopTransform();
}
else
break;
}
}
static Rectangle GetChildGlobalRectangle(Control control, ref Matrix3x3 globalTransform)
{
Matrix3x3.Multiply(ref control._cachedTransform, ref globalTransform, out var globalChildTransform);
return new Rectangle(globalChildTransform.M31, globalChildTransform.M32, control.Width * globalChildTransform.M11, control.Height * globalChildTransform.M22);
}
}
else
{
for (int i = 0; i < children.Count; i++)
{
var child = children[i];
if (child.Visible)
{
Render2D.PushTransform(ref child._cachedTransform);
child.Draw();
Render2D.PopTransform();
}
}
}
}
/// <inheritdoc />
public override bool OnMouseDown(Float2 location, MouseButton button)
{
@@ -1104,7 +1166,6 @@ namespace FlaxEditor.GUI.Tree
{
// TODO: perform layout for any non-TreeNode controls
_cachedHeight = _headerHeight;
_cachedTextColor = CacheTextColor();
Size = new Float2(width, _headerHeight);
}
@@ -1154,7 +1215,6 @@ namespace FlaxEditor.GUI.Tree
}
_cachedHeight = height;
_cachedTextColor = CacheTextColor();
Height = Mathf.Max(_headerHeight, y);
}