Files
HellionChat/HellionChat/Util/StringUtil.cs
T

66 lines
2.2 KiB
C#
Executable File

using System.Globalization;
using System.Text;
using Dalamud.Bindings.ImGui;
namespace HellionChat.Util;
internal static class StringUtil
{
internal static byte[] ToTerminatedBytes(this string s)
{
var utf8 = Encoding.UTF8;
var bytes = new byte[utf8.GetByteCount(s) + 1];
utf8.GetBytes(s, 0, s.Length, bytes, 0);
bytes[^1] = 0;
return bytes;
}
// Taken from https://stackoverflow.com/a/4975942
internal static string BytesToString(long byteCount)
{
string[] suf = ["B", "KB", "MB", "GB", "TB", "PB", "EB"]; // Longs run out around EB
if (byteCount == 0)
return "0" + suf[0];
var bytes = Math.Abs(byteCount);
var place = Convert.ToInt32(Math.Floor(Math.Log(bytes, 1024)));
var num = Math.Round(bytes / Math.Pow(1024, place), 1);
// "0.#" keeps the rounded fractional digit (1.5 GB stays "1.5GB"); "N0"
// would truncate it back to integer. InvariantCulture pins the decimal
// separator to '.' so a German locale doesn't render "1,5GB".
return (Math.Sign(byteCount) * num).ToString("0.#", CultureInfo.InvariantCulture) + suf[place];
}
// Returns the text unchanged when it already fits the width budget,
// otherwise the longest prefix plus a horizontal-ellipsis character that
// still fits. Used by the chat header Honorific title slot and reused by
// the chat-line truncation path in later cycles.
public static string TruncateToFitWidth(string text, float maxWidth)
{
if (ImGui.CalcTextSize(text).X <= maxWidth)
{
return text;
}
// Binary-search the longest prefix that fits with an ellipsis.
const string ellipsis = "…";
var lo = 0;
var hi = text.Length;
while (lo < hi)
{
var mid = (lo + hi + 1) / 2;
var candidate = text[..mid] + ellipsis;
if (ImGui.CalcTextSize(candidate).X <= maxWidth)
{
lo = mid;
}
else
{
hi = mid - 1;
}
}
return lo == 0 ? ellipsis : text[..lo] + ellipsis;
}
}