erik/acdream
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions 1

feat(ui): D.2b — toolbar collapse-to-one-row (bottom-edge snap resize hides/shows row 2)

Browse source 
UiElement.MaxHeight + ResizableEdges mask; UiCollapsibleFrame snaps height to the nearer
of {collapsed,expanded} and toggles row-2 visibility; GameWindow computes the two heights
from the layout + top-anchors the content. Amends IA-17. UiNineSlicePanel unsealed to
allow subclassing.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
Erik 2026-06-20 18:33:35 +02:00
parent e58be3f030
commit f74e017509
8 changed files with 159 additions and 15 deletions
Download patch file Download diff file Expand all files Collapse all files

36
src/AcDream.App/UI/UiCollapsibleFrame.cs Normal file
View file

@ -0,0 +1,36 @@
using System;
using System.Collections.Generic;
namespace AcDream.App.UI;
/// <summary>
/// A toolbar-frame variant that snaps its height between two stops — collapsed (row 2 hidden) and
/// expanded (row 2 shown) — and toggles a set of "second-row" elements to match. Resized via the
/// bottom edge (the mount sets <see cref="UiElement.ResizableEdges"/> = Bottom); each tick it resolves
/// the dragged height to the nearer stop so the frame always rests collapsed or expanded — never a
/// half-row. Toolkit UX (keystone.dll has no decomp; the dat stacks both rows always) — see IA-17.
/// </summary>
public sealed class UiCollapsibleFrame : UiNineSlicePanel
{
public UiCollapsibleFrame(Func<uint, (uint, int, int)> resolve) : base(resolve) { }
public float CollapsedHeight { get; set; }
public float ExpandedHeight { get; set; }
/// <summary>Elements shown only when expanded (the row-2 slot lists). Hidden when collapsed.</summary>
public IReadOnlyList<UiElement> SecondRow { get; set; } = Array.Empty<UiElement>();
/// <summary>True when the frame is at (or nearer) the expanded stop.</summary>
public bool IsExpanded => Height >= (CollapsedHeight + ExpandedHeight) * 0.5f;
protected override void OnTick(double deltaSeconds)
{
base.OnTick(deltaSeconds);
if (ExpandedHeight <= CollapsedHeight) return; // not configured yet — no snap
bool expanded = IsExpanded;
Height = expanded ? ExpandedHeight : CollapsedHeight; // snap the dragged height to a stop
for (int i = 0; i < SecondRow.Count; i++) SecondRow[i].Visible = expanded;
}
/// <summary>Test hook — OnTick is protected. Drives one snap+visibility reconcile.</summary>
internal void TickForTest(double dt) => OnTick(dt);
}