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Fix scroll bars when using negative content area (eg. curve editor)

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This commit is contained in:
Wojtek Figat
2024-11-27 20:22:38 +01:00
parent 47919bd434
commit dc91e55cec
2 changed files with 30 additions and 12 deletions
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4
Source/Editor/GUI/CurveEditor.cs
View File

@@ -1384,9 +1384,7 @@ namespace FlaxEditor.GUI
// Calculate bounds
var bounds = _points[0].Bounds;
for (var 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)
@@ -2116,9 +2114,7 @@ namespace FlaxEditor.GUI
// 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)

38
Source/Engine/UI/GUI/Panels/Panel.cs
View File

@@ -553,7 +553,12 @@ namespace FlaxEngine.GUI
if (vScrollEnabled)
{
VScrollBar.SetScrollRange(scrollBounds.Top, Mathf.Max(Mathf.Max(0, scrollBounds.Top), scrollBounds.Height - height));
float max;
if (scrollBounds.Top < 0)
max = Mathf.Max(scrollBounds.Bottom, scrollBounds.Top + scrollBounds.Height - height);
else
max = Mathf.Max(scrollBounds.Top, scrollBounds.Height - height);
VScrollBar.SetScrollRange(scrollBounds.Top, max);
}
VScrollBar.Bounds = new Rectangle(Width - _scrollBarsSize, 0, _scrollBarsSize, Height);
}
@@ -580,7 +585,12 @@ namespace FlaxEngine.GUI
if (hScrollEnabled)
{
HScrollBar.SetScrollRange(scrollBounds.Left, Mathf.Max(Mathf.Max(0, scrollBounds.Left), scrollBounds.Width - width));
float max;
if (scrollBounds.Left < 0)
max = Mathf.Max(scrollBounds.Right, scrollBounds.Left + scrollBounds.Width - width);
else
max = Mathf.Max(scrollBounds.Left, scrollBounds.Width - width);
HScrollBar.SetScrollRange(scrollBounds.Left, max);
}
HScrollBar.Bounds = new Rectangle(0, Height - _scrollBarsSize, Width - (VScrollBar != null && VScrollBar.Visible ? VScrollBar.Width : 0), _scrollBarsSize);
}
@@ -596,17 +606,29 @@ namespace FlaxEngine.GUI
// Calculate scroll area bounds
var totalMin = Float2.Zero;
var totalMax = Float2.Zero;
var hasTotal = false;
for (int i = 0; i < _children.Count; i++)
{
var c = _children[i];
if (c.Visible && c.IsScrollable)
{
var min = Float2.Zero;
var max = c.Size;
Matrix3x3.Transform2D(ref min, ref c._cachedTransform, out min);
Matrix3x3.Transform2D(ref max, ref c._cachedTransform, out max);
Float2.Min(ref min, ref totalMin, out totalMin);
Float2.Max(ref max, ref totalMax, out totalMax);
var upperLeft = Float2.Zero;
var bottomRight = c.Size;
Matrix3x3.Transform2D(ref upperLeft, ref c._cachedTransform, out upperLeft);
Matrix3x3.Transform2D(ref bottomRight, ref c._cachedTransform, out bottomRight);
Float2.Min(ref upperLeft, ref bottomRight, out var min);
Float2.Max(ref upperLeft, ref bottomRight, out var max);
if (hasTotal)
{
Float2.Min(ref min, ref totalMin, out totalMin);
Float2.Max(ref max, ref totalMax, out totalMax);
}
else
{
totalMin = min;
totalMax = max;
hasTotal = true;
}
}
}