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ImGuiNet

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NepuShiro
2026-05-18 01:36:55 -05:00
parent fc0b04a4bc
commit 060f117a01
7 changed files with 233 additions and 624 deletions
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Program.cs
+1 -126
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@@ -1,8 +1,6 @@
using System.Numerics;
using System.Runtime.CompilerServices;
using Hexa.NET.ImGui;
using Hexa.NET.ImPlot;
using Hexa.NET.ImPlot3D;
using ImGuiNET;
using SDL3_TestingSuite.SDL3;
using SDL3;
@@ -11,17 +9,11 @@ namespace SDL3_TestingSuite;
public class Program
{
private static bool _demoWindowVisible = true;
private static bool _fontStuff;
private static readonly Dictionary<string, List<uint>?> GlyphsByName = new Dictionary<string, List<uint>?>();
private static bool _initialized;
private static ImFontPtr _font;
private static float size = 1f;
public static void Main()
{
const SDL.WindowFlags flags = SDL.WindowFlags.Resizable | SDL.WindowFlags.HighPixelDensity | SDL.WindowFlags.Transparent;
SDL3Window window = new SDL3Window("SDL3 Testing Suite", 100, 100, 1280, 720, flags);
window.ClearColor.W = 0f;
window.RenderCallback = () =>
{
ImGuiViewportPtr viewport = ImGui.GetMainViewport();
@@ -43,132 +35,15 @@ public class Program
}
ImGui.Spacing();
ImGui.MenuItem("Demo Window", "", ref _demoWindowVisible);
ImGui.Spacing();
ImGui.MenuItem("Font Stuff", "", ref _fontStuff);
ImGui.EndMenuBar();
}
ImGui.End();
if (_fontStuff)
{
ImGui.SetNextWindowSize(new Vector2(250, 500), ImGuiCond.FirstUseEver);
if (ImGui.Begin("FontStuff", ref _fontStuff))
{
ImGui.ShowFontSelector("Font");
bool change = false;
if (ImGui.GetFont() != _font)
{
_font = ImGui.GetFont();
change = true;
}
string fontName = _font.GetDebugNameS();
fontName = string.IsNullOrEmpty(fontName) ? _font.FontId.ToString() : fontName;
if (!_initialized || change)
{
if (!GlyphsByName.TryGetValue(fontName, out List<uint> glyphs))
{
glyphs = new List<uint>();
ImFontPtr font = _font;
for (uint codepoint = 0; codepoint <= 0x10FFFF; codepoint++)
{
if (codepoint >= 0xD800 && codepoint <= 0xDFFF)
{
continue;
}
if (!font.IsGlyphInFont(codepoint)) continue;
glyphs.Add(codepoint);
}
GlyphsByName[fontName] = glyphs;
Logger.Log($"Initialized font {fontName} with {glyphs.Count} glyphs");
}
_initialized = true;
}
ImGui.PushFont(null, 24);
if (GlyphsByName.TryGetValue(fontName, out List<uint> glyphs2))
{
float cursorXStart = ImGui.GetCursorPosX();
float maxWidth = ImGui.GetContentRegionAvail().X;
foreach (uint codepoint in glyphs2)
{
string text = char.ConvertFromUtf32((int)codepoint);
float glyphWidth = ImGui.CalcTextSize(text).X;
float cursorX = ImGui.GetCursorPosX();
if (cursorX > cursorXStart && (cursorX + glyphWidth) > (cursorXStart + maxWidth))
{
ImGui.NewLine();
}
ImGui.TextUnformatted(text);
ImGui.SameLine();
}
}
ImGui.PopFont();
ImGui.End();
}
}
float time = (float)ImGui.GetTime() * 5;
if (ImPlot.BeginPlot("Moving Rainbow Sine Wave"))
{
int count = 200;
float[] xs = new float[2];
float[] ys = new float[2];
for (int i = 0; i < count - 1; i++)
{
float x0 = i * 0.1f;
float x1 = (i + 1) * 0.1f;
float y0 = MathF.Sin(x0 * size + time);
float y1 = MathF.Sin(x1 * size + time);
xs[0] = x0;
xs[1] = x1;
ys[0] = y0;
ys[1] = y1;
float t = i / (float)count;
float r = 0.5f + 1f * MathF.Sin(6.2831f * (t));
float g = 0.5f + 1f * MathF.Sin(6.2831f * (t + 0.33f));
float b = 0.5f + 1f * MathF.Sin(6.2831f * (t + 0.66f));
ImPlot.PushStyleColor(ImPlotCol.Line, new Vector4(r, g, b, 1f));
ImPlot.PlotLine("##seg", ref xs[0], ref ys[0], 2);
ImPlot.PopStyleColor();
}
ImPlot.EndPlot();
}
ImGui.SliderFloat("Sine", ref size, 1f, 120f);
if (_demoWindowVisible)
{
ImGui.ShowDemoWindow(ref _demoWindowVisible);
ImPlot.ShowDemoWindow(ref _demoWindowVisible);
// ImPlot3D.ShowDemoWindow(ref _demoWindowVisible);
}
};