shoko/Gui.cs

using System.Numerics;
using ImGuiNET;

namespace Shoko;

/// <summary>
/// This class mainly wraps ImGui calls to use lambdas instead of BeginX/EndX, or those that gives out a boolean as a return parameter
/// </summary>
static class Gui
{
    public static void Window(ReadOnlySpan<char> name, Action f)
    {
        if(ImGui.Begin(name))
        {
            f();
        }
        ImGui.End();
    }
    public static void Window(ReadOnlySpan<char> name, ImGuiWindowFlags flags, Action f)
    {
        if(ImGui.Begin(name, flags))
        {
            f();
        }
        ImGui.End();
    }
    public static void Window(ReadOnlySpan<char> name, ref bool open, Action f)
    {
        if(ImGui.Begin(name, ref open))
        {
            f();
        }
        ImGui.End();
    }
    public static void Window(ReadOnlySpan<char> name, ref bool open, ImGuiWindowFlags flags, Action f)
    {
        if(ImGui.Begin(name, ref open, flags))
        {
            f();
        }
        ImGui.End();
    }
    public static void Menu(ReadOnlySpan<char> label, Action f)
    {
        if(ImGui.BeginMenu(label))
        {
            f();
            ImGui.EndMenu();
        }
    }
    public static void MainMenuBar(Action f)
    {
        if(ImGui.BeginMainMenuBar())
        {
            f();
            ImGui.EndMainMenuBar();
        }
    }
    public static void MenuItem(ReadOnlySpan<char> name, ReadOnlySpan<char> shortcut, Action f)
    {
        bool result = false;
        ImGui.MenuItem(name, shortcut, ref result);
        if(result) f();
    }
    public static void Button(ReadOnlySpan<char> label, Action f)
    {
        if(ImGui.Button(label)) f();
    }
    public static void MenuBar(Action f)
    {
        if(ImGui.BeginMenuBar())
        {
            f();
            ImGui.EndMenuBar();
        }
    }
    public static void TreeNode(ReadOnlySpan<char> label, Action f)
    {
        if(ImGui.TreeNode(label))
        {
            f();
            ImGui.TreePop();
        }
    }
    public static void Popup(ReadOnlySpan<char> str_id, Action f)
    {
        if(ImGui.BeginPopup(str_id))
        {
            f();
            ImGui.EndPopup();
        }
    }
    public static void Popup(ReadOnlySpan<char> str_id, ImGuiWindowFlags flags, Action f)
    {
        if(ImGui.BeginPopup(str_id, flags))
        {
            f();
            ImGui.EndPopup();
        }
    }
    public static void PopupModal(ReadOnlySpan<char> name, Action f)
    {
        if(ImGui.BeginPopupModal(name))
        {
            f();
            ImGui.EndPopup();
        }
    }
    public static void Text(ReadOnlySpan<char> text)
    {
        ImGui.TextUnformatted(text);
    }
    public static void Link(ReadOnlySpan<char> text, ReadOnlySpan<char> tip, Action clicked)
    {
        ImGui.TextColored(new Vector4(0,0,255,255), text);
        ImGui.SetItemTooltip(tip);
        if(ImGui.IsItemHovered())
            ImGui.SetMouseCursor(ImGuiMouseCursor.Hand);
        if(ImGui.IsItemClicked(ImGuiMouseButton.Left)) clicked();
    }
    public static void Font(ImFontPtr font, Action f)
    {
        ImGui.PushFont(font);
        f();
        ImGui.PopFont();
    }
    public static void Table(ReadOnlySpan<char> id, int column, Action f)
    {
        if(ImGui.BeginTable(id, column))
        {
            f();
            ImGui.EndTable();
        }
    }
}