first commit

2026-01-07 11:33:05 +08:00
commit fc54ffd43b
215 changed files with 31856 additions and 0 deletions
--- a/ICSharpCode.TextEditor/Project/Src/Gui/Ime.cs
+++ b/ICSharpCode.TextEditor/Project/Src/Gui/Ime.cs
@@ -0,0 +1,179 @@
+// <file>
+//     <copyright see="prj:///doc/copyright.txt"/>
+//     <license see="prj:///doc/license.txt"/>
+//     <owner name="Shinsaku Nakagawa" email="shinsaku@users.sourceforge.jp"/>
+//     <version>$Revision$</version>
+// </file>
+
+using System;
+using System.Drawing;
+using System.Runtime.InteropServices;
+using System.Windows.Forms;
+
+namespace ICSharpCode.TextEditor
+{
+	/// <summary>
+	/// Used internally, not for own use.
+	/// </summary>
+	internal class Ime
+	{
+		public Ime(IntPtr hWnd, Font font)
+		{
+			// For unknown reasons, the IME support is causing crashes when used in a WOW64 process
+			// or when used in .NET 4.0. We'll disable IME support in those cases.
+			string PROCESSOR_ARCHITEW6432 = Environment.GetEnvironmentVariable("PROCESSOR_ARCHITEW6432");
+			if (PROCESSOR_ARCHITEW6432 == "IA64" || PROCESSOR_ARCHITEW6432 == "AMD64" || Environment.OSVersion.Platform == PlatformID.Unix || Environment.Version >= new Version(4,0)) {
+				disableIME = true;
+			} else {
+				this.hIMEWnd = ImmGetDefaultIMEWnd(hWnd);
+			}
+			this.hWnd = hWnd;
+			this.font = font;
+			SetIMEWindowFont(font);
+		}
+
+		private Font font = null;
+		public Font Font
+		{
+			get {
+				return font;
+			}
+			set {
+				if (!value.Equals(font)) {
+					font = value;
+					lf = null;
+					SetIMEWindowFont(value);
+				}
+			}
+		}
+
+		public IntPtr HWnd
+		{
+			set {
+				if (this.hWnd != value) {
+					this.hWnd = value;
+					if (!disableIME)
+						this.hIMEWnd = ImmGetDefaultIMEWnd(value);
+					SetIMEWindowFont(font);
+				}
+			}
+		}
+
+		[ DllImport("imm32.dll") ]
+		private static extern IntPtr ImmGetDefaultIMEWnd(IntPtr hWnd);
+
+		[ DllImport("user32.dll") ]
+		private static extern IntPtr SendMessage(IntPtr hWnd, int msg, IntPtr wParam, COMPOSITIONFORM lParam);
+		[ DllImport("user32.dll") ]
+		private static extern IntPtr SendMessage(IntPtr hWnd, int msg, IntPtr wParam, [In, MarshalAs(UnmanagedType.LPStruct)] LOGFONT lParam);
+
+		[ StructLayout(LayoutKind.Sequential) ]
+		private class COMPOSITIONFORM
+		{
+			public int dwStyle = 0;
+			public POINT ptCurrentPos = null;
+			public RECT rcArea = null;
+		}
+
+		[ StructLayout(LayoutKind.Sequential) ]
+		private class POINT
+		{
+			public int x = 0;
+			public int y = 0;
+		}
+
+		[ StructLayout(LayoutKind.Sequential) ]
+		private class RECT
+		{
+			public int left = 0;
+			public int top = 0;
+			public int right = 0;
+			public int bottom = 0;
+		}
+
+		private const int WM_IME_CONTROL = 0x0283;
+
+		private const int IMC_SETCOMPOSITIONWINDOW = 0x000c;
+		private IntPtr hIMEWnd;
+		private IntPtr hWnd;
+		private const int CFS_POINT = 0x0002;
+
+		[ StructLayout(LayoutKind.Sequential) ]
+		private class LOGFONT
+		{
+			public int lfHeight = 0;
+			public int lfWidth = 0;
+			public int lfEscapement = 0;
+			public int lfOrientation = 0;
+			public int lfWeight = 0;
+			public byte lfItalic = 0;
+			public byte lfUnderline = 0;
+			public byte lfStrikeOut = 0;
+			public byte lfCharSet = 0;
+			public byte lfOutPrecision = 0;
+			public byte lfClipPrecision = 0;
+			public byte lfQuality = 0;
+			public byte lfPitchAndFamily = 0;
+			[ MarshalAs(UnmanagedType.ByValTStr, SizeConst=32) ] public string lfFaceName = null;
+		}
+		private const int IMC_SETCOMPOSITIONFONT = 0x000a;
+		LOGFONT lf = null;
+		static bool disableIME;
+		
+		private void SetIMEWindowFont(Font f)
+		{
+			if (disableIME || hIMEWnd == IntPtr.Zero) return;
+			
+			if (lf == null) {
+				lf = new LOGFONT();
+				f.ToLogFont(lf);
+				lf.lfFaceName = f.Name;  // This is very important! "Font.ToLogFont" Method sets invalid value to LOGFONT.lfFaceName
+			}
+
+			try {
+				SendMessage(
+					hIMEWnd,
+					WM_IME_CONTROL,
+					new IntPtr(IMC_SETCOMPOSITIONFONT),
+					lf
+				);
+			} catch (AccessViolationException ex) {
+				Handle(ex);
+			}
+		}
+
+		public void SetIMEWindowLocation(int x, int y)
+		{
+			if (disableIME || hIMEWnd == IntPtr.Zero) return;
+
+			POINT p = new POINT();
+			p.x = x;
+			p.y = y;
+
+			COMPOSITIONFORM lParam = new COMPOSITIONFORM();
+			lParam.dwStyle = CFS_POINT;
+			lParam.ptCurrentPos = p;
+			lParam.rcArea = new RECT();
+
+			try {
+				SendMessage(
+					hIMEWnd,
+					WM_IME_CONTROL,
+					new IntPtr(IMC_SETCOMPOSITIONWINDOW),
+					lParam
+				);
+			} catch (AccessViolationException ex) {
+				Handle(ex);
+			}
+		}
+		
+		void Handle(Exception ex)
+		{
+			Console.WriteLine(ex);
+			if (!disableIME) {
+				disableIME = true;
+				MessageBox.Show("Error calling IME: " + ex.Message + "\nIME is disabled.", "IME error");
+			}
+		}
+	}
+}