90 lines
3.4 KiB
C#
90 lines
3.4 KiB
C#
using System.Numerics;
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namespace AcDream.App.UI;
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/// <summary>
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/// Per-event payload delivered to <see cref="UiElement.OnEvent"/>.
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/// Mirrors the retail AC client's 24-byte event struct that is passed to
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/// every widget's vtable slot +0x128 (<c>OnEvent(int* event)</c>).
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///
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/// Layout from decompiled <c>chunk_004A0000.c</c> paperdoll handler
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/// <c>FUN_004A5FA0</c>:
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/// <code>
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/// int source_id; // param_2[0] — e.g. 0x100001d6 (drag source)
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/// void* target_widget; // param_2[1]
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/// int event_type; // param_2[2] — see UiEventType
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/// int data0; // param_2[3]
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/// int data1; // param_2[4] — typically x in local coords
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/// int data2; // param_2[5] — typically y
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/// int data3; // param_2[6]
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/// </code>
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/// </summary>
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public readonly record struct UiEvent(
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uint SourceId,
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UiElement? Target,
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int Type, // see <see cref="UiEventType"/>
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int Data0 = 0,
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int Data1 = 0,
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int Data2 = 0,
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int Data3 = 0,
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object? Payload = null);
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/// <summary>
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/// Retail AC UI event-type constants. Each value matches the decompiled
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/// switch-case in widgets' OnEvent handlers (e.g. 0x01 click, 0x15 drag
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/// begin, 0x3E drop released). Win32 WM_* numbers are reused for raw
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/// button/key/mouse events (0x200 = WM_MOUSEMOVE etc.) — this matches
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/// retail where internal event codes collide deliberately with WM_*.
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///
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/// Evidence from decompile:
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/// - 0x01 click — chunk_00470000.c ~11140, chunk_004C0000.c ~9270
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/// - 0x05/0x06 hover — chunk_00460000.c ~6253
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/// - 0x07 tooltip — chunk_00460000.c ~6253 (the UI manager polls the
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/// hovered element's tooltip deadline before global time)
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/// - 0x0A scroll — chunk_00470000.c ~11210
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/// - 0x0E right-click— chunk_004A0000.c ~2674
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/// - 0x15 drag begin — chunk_004A0000.c ~2707
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/// - 0x1C drag-over — chunk_004A0000.c ~2723
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/// - 0x21 drag-enter — chunk_004A0000.c ~2714
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/// - 0x3E drop-released — chunk_004A0000.c ~2754
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/// </summary>
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public static class UiEventType
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{
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public const int Click = 0x01;
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public const int HoverEnter = 0x05;
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public const int HoverLeave = 0x06;
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public const int Tooltip = 0x07;
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public const int DoubleClick = 0x08;
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public const int Scroll = 0x0A;
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public const int RightClick = 0x0E;
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public const int DragBegin = 0x15;
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public const int DragOver = 0x1C;
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public const int DragEnter = 0x21;
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public const int FocusLost = 0x28;
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public const int FocusGained = 0x29;
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public const int DropReleased = 0x3E;
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// Raw Win32-style event numbers (retail uses WM_* verbatim for internal dispatch).
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public const int MouseMove = 0x200;
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public const int MouseDown = 0x201; // left button down
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public const int MouseUp = 0x202; // left button up
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public const int DoubleClickLeft = 0x203;
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public const int RightDown = 0x204;
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public const int RightUp = 0x205;
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public const int MiddleDown = 0x207;
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public const int MiddleUp = 0x208;
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public const int KeyDown = 0x100;
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public const int KeyUp = 0x101;
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public const int Char = 0x102;
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}
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/// <summary>
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/// Mouse button enum matching retail's 1/2/3 encoding.
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/// </summary>
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public enum UiMouseButton
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{
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Left = 1,
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Right = 2,
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Middle = 3,
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}
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