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重写桌面环境内存过低报错，给桌面环境登陆页面支持多主题

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Leonmmcoset
2026-03-28 22:25:25 +08:00
parent e9d4ae3094
commit 78bda7c118
5 changed files with 274 additions and 56 deletions
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161
Gui/Gui.cs
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@@ -23,9 +23,156 @@ namespace CMLeonOS.Gui
{
internal static class Gui
{
private enum LowMemoryAction
{
Continue,
ReturnBootMenu,
Cancel
}
private static bool guiRunning = false;
private static WindowManager windowManager;
private static string FitText(string text, int width)
{
if (string.IsNullOrEmpty(text))
{
return string.Empty.PadRight(width);
}
if (text.Length > width)
{
if (width <= 3)
{
return text.Substring(0, width);
}
return text.Substring(0, width - 3) + "...";
}
return text.PadRight(width);
}
private static void WriteAt(int x, int y, string text, ConsoleColor fg, ConsoleColor bg)
{
if (y < 0 || y >= Console.WindowHeight)
{
return;
}
Console.SetCursorPosition(Math.Max(0, x), y);
Console.ForegroundColor = fg;
Console.BackgroundColor = bg;
Console.Write(text);
}
private static void DrawBorderLine(int left, int y, int width, ConsoleColor fg, ConsoleColor bg)
{
string mid = new string('-', width - 2);
WriteAt(left, y, "+" + mid + "+", fg, bg);
}
private static void DrawPanelLine(int left, int y, int width, string content, ConsoleColor contentFg, ConsoleColor contentBg)
{
int innerWidth = width - 2;
WriteAt(left, y, "|", ConsoleColor.Cyan, ConsoleColor.Black);
WriteAt(left + 1, y, FitText(content, innerWidth), contentFg, contentBg);
WriteAt(left + width - 1, y, "|", ConsoleColor.Cyan, ConsoleColor.Black);
}
private static LowMemoryAction ShowLowMemoryWarning(uint ramMb)
{
int selected = 0;
string[] options = new[] { "Continue Anyway", "Return to Boot Menu", "Cancel" };
bool needsRender = true;
while (true)
{
if (needsRender)
{
Console.BackgroundColor = ConsoleColor.Black;
Console.ForegroundColor = ConsoleColor.White;
Console.Clear();
int width = Console.WindowWidth;
int height = Console.WindowHeight;
int panelWidth = Math.Min(86, Math.Max(58, width - 8));
int contentLineCount = 7 + options.Length;
int panelHeight = contentLineCount + 2;
int left = Math.Max(0, (width - panelWidth) / 2);
int top = Math.Max(0, (height - panelHeight) / 2);
DrawBorderLine(left, top, panelWidth, ConsoleColor.Cyan, ConsoleColor.Black);
DrawPanelLine(left, top + 1, panelWidth, " CMLeonOS Boot Warning ", ConsoleColor.Black, ConsoleColor.Cyan);
DrawPanelLine(left, top + 2, panelWidth, string.Empty, ConsoleColor.White, ConsoleColor.Black);
DrawPanelLine(left, top + 3, panelWidth, " Not enough system memory is available for Desktop GUI.", ConsoleColor.Yellow, ConsoleColor.Black);
DrawPanelLine(left, top + 4, panelWidth, $" Detected : {ramMb} MB", ConsoleColor.Gray, ConsoleColor.Black);
DrawPanelLine(left, top + 5, panelWidth, " Required : at least 1024 MB", ConsoleColor.Gray, ConsoleColor.Black);
DrawPanelLine(left, top + 6, panelWidth, string.Empty, ConsoleColor.White, ConsoleColor.Black);
DrawPanelLine(left, top + 7, panelWidth, " Use Up/Down to select, Enter to confirm", ConsoleColor.DarkGray, ConsoleColor.Black);
for (int i = 0; i < options.Length; i++)
{
bool isSelected = i == selected;
DrawPanelLine(
left,
top + 8 + i,
panelWidth,
(isSelected ? " > " : " ") + options[i],
isSelected ? ConsoleColor.Black : ConsoleColor.White,
isSelected ? ConsoleColor.White : ConsoleColor.Black
);
}
DrawBorderLine(left, top + panelHeight - 1, panelWidth, ConsoleColor.Cyan, ConsoleColor.Black);
needsRender = false;
}
if (Cosmos.System.KeyboardManager.TryReadKey(out var key))
{
if (key.Key == Cosmos.System.ConsoleKeyEx.UpArrow)
{
selected--;
if (selected < 0)
{
selected = options.Length - 1;
}
needsRender = true;
}
else if (key.Key == Cosmos.System.ConsoleKeyEx.DownArrow)
{
selected++;
if (selected >= options.Length)
{
selected = 0;
}
needsRender = true;
}
else if (key.Key == Cosmos.System.ConsoleKeyEx.Enter)
{
if (selected == 0)
{
return LowMemoryAction.Continue;
}
if (selected == 1)
{
return LowMemoryAction.ReturnBootMenu;
}
return LowMemoryAction.Cancel;
}
else if (key.Key == Cosmos.System.ConsoleKeyEx.Escape)
{
return LowMemoryAction.ReturnBootMenu;
}
}
else
{
System.Threading.Thread.Sleep(16);
}
}
}
internal static bool StartGui()
{
Console.Clear();
@@ -35,18 +182,16 @@ namespace CMLeonOS.Gui
Logger.Logger.Instance.Info("Gui", "GUI starting.");
if (Cosmos.Core.CPU.GetAmountOfRAM() < 1000)
uint ramMb = Cosmos.Core.CPU.GetAmountOfRAM();
if (ramMb < 1000)
{
Console.ForegroundColor = ConsoleColor.Yellow;
Console.WriteLine("Not enough system memory is available to run the GUI.");
Console.WriteLine("At least 1 GB should be allocated.");
Console.ResetColor();
Console.Write("Continue anyway? [y/N]");
if (Console.ReadKey(true).Key != ConsoleKey.Y)
LowMemoryAction action = ShowLowMemoryWarning(ramMb);
if (action != LowMemoryAction.Continue)
{
return false;
}
Console.Clear();
}
Console.WriteLine("Loading apps...");