GtkSharp/Source/Tools/GapiCodegen/EnumGen.cs

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// GtkSharp.Generation.EnumGen.cs - The Enumeration Generatable.
//
// Author: Mike Kestner <mkestner@speakeasy.net>
//
// Copyright (c) 2001 Mike Kestner
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of version 2 of the GNU General Public
// License as published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
//
// You should have received a copy of the GNU General Public
// License along with this program; if not, write to the
// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA.
using System.Runtime.InteropServices;
namespace GtkSharp.Generation {
using System;
using System.Collections.Generic;
using System.IO;
using System.Xml;
using System.Text.RegularExpressions;
public class EnumGen : GenBase {
string enum_type = String.Empty;
IList<string> members = new List<string> ();
public EnumGen (XmlElement ns, XmlElement elem) : base (ns, elem)
{
foreach (XmlElement member in elem.ChildNodes) {
if (member.Name != "member")
continue;
string result = "\t\t" + member.GetAttribute("name");
if (member.HasAttribute ("value")) {
string value = member.GetAttribute ("value").Trim ();
foreach (Match match in Regex.Matches (value, "[0-9]+([UL]{1,2})", RegexOptions.IgnoreCase)) {
switch (match.Groups[1].Value.ToUpper ()) {
case "U": enum_type = " : uint"; break;
case "L": enum_type = " : long"; break;
case "UL": enum_type = " : ulong"; break;
}
}
result += " = " + value;
}
members.Add (result + ",");
}
if (elem.HasAttribute ("enum_type"))
enum_type = " : " + elem.GetAttribute ("enum_type");
}
public override bool Validate ()
{
return true;
}
public override string DefaultValue {
get {
return "(" + QualifiedName + ") 0";
}
}
public override string MarshalType {
get {
return "int";
}
}
public override string CallByName (string var_name)
{
return "(int) " + var_name;
}
public override string FromNative(string var)
{
return "(" + QualifiedName + ") " + var;
}
public override string GenerateAlign () {
return null;
}
public override void Generate (GenerationInfo gen_info)
{
StreamWriter sw = gen_info.OpenStream (Name, NS);
sw.WriteLine ("namespace " + NS + " {");
sw.WriteLine ();
sw.WriteLine ("\tusing System;");
sw.WriteLine ("\tusing System.Runtime.InteropServices;");
sw.WriteLine ();
sw.WriteLine ("#region Autogenerated code");
if (Elem.GetAttribute("type") == "flags")
sw.WriteLine ("\t[Flags]");
if (Elem.HasAttribute("gtype"))
sw.WriteLine ("\t[GLib.GType (typeof (" + NS + "." + Name + "GType))]");
string access = IsInternal ? "internal" : "public";
sw.WriteLine ("\t" + access + " enum " + Name + enum_type + " {");
sw.WriteLine ();
foreach (string member in members)
sw.WriteLine (member);
sw.WriteLine ("\t}");
if (Elem.HasAttribute ("gtype")) {
sw.WriteLine ();
sw.WriteLine ("\tinternal class " + Name + "GType {");
var funcname = Elem.GetAttribute("gtype");
sw.WriteLine ("\t\t[UnmanagedFunctionPointer (CallingConvention.Cdecl)]");
sw.WriteLine ("\t\tdelegate IntPtr d_" + funcname + "();");
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sw.WriteLine ("\t\tstatic d_" + funcname + " " + funcname + " = FuncLoader.LoadFunction<d_" + funcname + ">(FuncLoader.GetProcAddress(GLibrary.Load(" + LibraryName + "), \"" + funcname + "\"));");
sw.WriteLine ();
sw.WriteLine ("\t\tpublic static GLib.GType GType {");
sw.WriteLine ("\t\t\tget {");
sw.WriteLine ("\t\t\t\treturn new GLib.GType (" + Elem.GetAttribute ("gtype") + " ());");
sw.WriteLine ("\t\t\t}");
sw.WriteLine ("\t\t}");
sw.WriteLine ("\t}");
}
sw.WriteLine ("#endregion");
sw.WriteLine ("}");
sw.Close ();
Statistics.EnumCount++;
}
}
}