110 lines
4.6 KiB
C#
110 lines
4.6 KiB
C#
using System.Numerics;
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using System.Runtime.InteropServices;
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using Dalamud.Interface;
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using Dalamud.Interface.Utility;
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using Dalamud.Plugin;
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using ImGuiNET;
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namespace LLib;
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/// <summary>
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/// Originally part of ECommons by NightmareXIV.
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///
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/// https://github.com/NightmareXIV/ECommons/blob/master/ECommons/ImGuiMethods/ImGuiEx.cs
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/// </summary>
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partial class LImGui
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{
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public sealed record HeaderIconOptions
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{
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public Vector2 Offset { get; init; } = Vector2.Zero;
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public ImGuiMouseButton MouseButton { get; init; } = ImGuiMouseButton.Left;
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public string Tooltip { get; init; } = string.Empty;
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public uint Color { get; init; } = 0xFFFFFFFF;
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}
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private static uint _headerLastWindowId = 0;
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private static ulong _headerLastFrame = 0;
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private static float _headerCurrentPos = 0;
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private static float _headerImGuiButtonWidth = 0;
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public static bool AddHeaderIcon(DalamudPluginInterface pluginInterface, string id, FontAwesomeIcon icon, HeaderIconOptions? options = null)
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{
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if (ImGui.IsWindowCollapsed()) return false;
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var scale = ImGuiHelpers.GlobalScale;
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var currentID = ImGui.GetID(0);
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if (currentID != _headerLastWindowId || _headerLastFrame != pluginInterface.UiBuilder.FrameCount)
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{
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_headerLastWindowId = currentID;
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_headerLastFrame = pluginInterface.UiBuilder.FrameCount;
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_headerCurrentPos = 0.25f * ImGui.GetStyle().FramePadding.Length();
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if (!GetCurrentWindowFlags().HasFlag(ImGuiWindowFlags.NoTitleBar))
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_headerCurrentPos = 1;
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_headerImGuiButtonWidth = 0f;
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if (CurrentWindowHasCloseButton())
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_headerImGuiButtonWidth += 17 * scale;
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if (!GetCurrentWindowFlags().HasFlag(ImGuiWindowFlags.NoCollapse))
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_headerImGuiButtonWidth += 17 * scale;
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if (!CurrentWindowHasCloseButton() &&
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GetCurrentWindowFlags().HasFlag(ImGuiWindowFlags.NoCollapse) &&
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GetCurrentWindowFlags().HasFlag(ImGuiWindowFlags.AlwaysAutoResize))
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_headerImGuiButtonWidth += 5 * scale;
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else
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_headerImGuiButtonWidth += 10 * scale;
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}
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options ??= new();
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var prevCursorPos = ImGui.GetCursorPos();
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var buttonSize = new Vector2(20 * scale);
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var buttonPos = new Vector2((ImGui.GetWindowWidth() - buttonSize.X - _headerImGuiButtonWidth * scale * _headerCurrentPos) - (ImGui.GetStyle().FramePadding.X * scale), ImGui.GetScrollY() + 1);
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ImGui.SetCursorPos(buttonPos);
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var drawList = ImGui.GetWindowDrawList();
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drawList.PushClipRectFullScreen();
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var pressed = false;
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ImGui.InvisibleButton(id, buttonSize);
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var itemMin = ImGui.GetItemRectMin();
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var itemMax = ImGui.GetItemRectMax();
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var halfSize = ImGui.GetItemRectSize() / 2;
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var center = itemMin + halfSize;
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if (ImGui.IsWindowHovered() && ImGui.IsMouseHoveringRect(itemMin, itemMax, false))
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{
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if (!string.IsNullOrEmpty(options.Tooltip))
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ImGui.SetTooltip(options.Tooltip);
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ImGui.GetWindowDrawList().AddCircleFilled(center, halfSize.X, ImGui.GetColorU32(ImGui.IsMouseDown(ImGuiMouseButton.Left) ? ImGuiCol.ButtonActive : ImGuiCol.ButtonHovered));
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if (ImGui.IsMouseReleased(options.MouseButton))
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pressed = true;
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}
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ImGui.SetCursorPos(buttonPos);
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ImGui.PushFont(UiBuilder.IconFont);
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var iconString = icon.ToIconString();
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drawList.AddText(UiBuilder.IconFont, ImGui.GetFontSize(), itemMin + halfSize - ImGui.CalcTextSize(iconString) / 2 + options.Offset, options.Color, iconString);
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ImGui.PopFont();
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ImGui.PopClipRect();
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ImGui.SetCursorPos(prevCursorPos);
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return pressed;
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}
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[LibraryImport("cimgui")]
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[UnmanagedCallConv(CallConvs = new[] { typeof(System.Runtime.CompilerServices.CallConvCdecl) })]
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private static partial nint igGetCurrentWindow();
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private static unsafe ImGuiWindow* GetCurrentWindow() => (ImGuiWindow*)igGetCurrentWindow();
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private static unsafe ImGuiWindowFlags GetCurrentWindowFlags() => GetCurrentWindow()->Flags;
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private static unsafe bool CurrentWindowHasCloseButton() => GetCurrentWindow()->HasCloseButton != 0;
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[StructLayout(LayoutKind.Explicit)]
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private struct ImGuiWindow
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{
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[FieldOffset(0xC)] public ImGuiWindowFlags Flags;
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[FieldOffset(0xD5)] public byte HasCloseButton;
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// 0x118 is the start of ImGuiWindowTempData
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[FieldOffset(0x130)] public Vector2 CursorMaxPos;
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}
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}
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