GtkSharp/generator/Signal.cs
Gonzalo Paniagua Javier 5f4cb8cc13 2002-12-10 Gonzalo Paniagua Javier <gonzalo@ximian.com>
* generator/Signal.cs: generate correct type name for EventArgs.

svn path=/trunk/gtk-sharp/; revision=9507
2002-12-09 23:36:18 +00:00

182 lines
5.6 KiB
C#

// GtkSharp.Generation.Signal.cs - The Signal Generatable.
//
// Author: Mike Kestner <mkestner@speakeasy.net>
//
// (c) 2001-2002 Mike Kestner
namespace GtkSharp.Generation {
using System;
using System.Collections;
using System.IO;
using System.Xml;
public class Signal {
private string marsh;
private string name;
private XmlElement elem;
private Parameters parms;
private ClassBase container_type;
public Signal (XmlElement elem, ClassBase container_type)
{
this.elem = elem;
this.name = elem.GetAttribute ("name");
if (elem["parameters"] != null)
parms = new Parameters (elem["parameters"]);
this.container_type = container_type;
}
public string Name {
get {
return name;
}
set {
name = value;
}
}
public bool Validate ()
{
marsh = SignalHandler.GetName(elem, container_type.NS, container_type.DoGenerate);
if ((Name == "") || (marsh == "")) {
Console.Write ("bad signal " + Name);
Statistics.ThrottledCount++;
return false;
}
if (parms != null && !parms.Validate ())
return false;
return true;
}
public void GenerateDecl (StreamWriter sw)
{
string argsname;
string handler = GetHandlerName (out argsname);
if (handler != "EventHandler")
handler = container_type.NS + "Sharp." + handler;
GenComments (sw);
if (elem.HasAttribute("new_flag") || (container_type != null && container_type.GetSignalRecursively (Name) != null))
sw.Write("new ");
sw.WriteLine ("\t\tevent " + handler + " " + Name + ";");
}
private void GenComments (StreamWriter sw)
{
sw.WriteLine();
sw.WriteLine("\t\t/// <summary> " + Name + " Event </summary>");
sw.WriteLine("\t\t/// <remarks>");
// FIXME: Generate some signal docs
sw.WriteLine("\t\t/// </remarks>");
}
private string GetHandlerName (out string argsname)
{
if (marsh.EndsWith (".voidObjectSignal")) {
argsname = "System.EventArgs";
return "EventHandler";
}
argsname = Name + "Args";
return Name + "Handler";
}
private string GenHandler (out string argsname)
{
string handler = GetHandlerName (out argsname);
if (handler == "EventHandler" || !container_type.DoGenerate)
return handler;
char sep = Path.DirectorySeparatorChar;
string dir = ".." + sep + container_type.NS.ToLower() + sep + "generated";
if (!Directory.Exists (dir))
Directory.CreateDirectory (dir);
string filename = dir + sep + container_type.NS + "Sharp." + handler + ".cs";
FileStream stream = new FileStream (filename, FileMode.Create, FileAccess.Write);
StreamWriter sw = new StreamWriter (stream);
sw.WriteLine ("// Generated File. Do not modify.");
sw.WriteLine ("// <c> 2001-2002 Mike Kestner");
sw.WriteLine ();
sw.WriteLine ("namespace " + container_type.NS + "Sharp {");
sw.WriteLine ();
sw.WriteLine ("\tusing System;");
sw.WriteLine ();
sw.WriteLine ("\t/// <summary> " + handler + " Delegate </summary>");
sw.WriteLine ("\t/// <remarks>");
sw.WriteLine ("\t///\tDelegate signature for " + Name + " Event handlers");
sw.WriteLine ("\t/// </remarks>");
sw.WriteLine ();
sw.WriteLine ("\tpublic delegate void " + handler + "(object o, " + argsname + " args);");
sw.WriteLine ();
sw.WriteLine ("\t/// <summary> " + argsname + " Class </summary>");
sw.WriteLine ("\t/// <remarks>");
sw.WriteLine ("\t///\tArguments for " + Name + " Event handlers");
sw.WriteLine ("\t/// </remarks>");
sw.WriteLine ();
sw.WriteLine ("\tpublic class " + argsname + " : GtkSharp.SignalArgs {");
if (parms != null) {
for (int i = 1; i < parms.Count; i++) {
sw.WriteLine ("\t\tpublic " + parms[i].CSType + " " + parms[i].StudlyName + "{");
sw.WriteLine ("\t\t\tget {");
sw.WriteLine ("\t\t\t\treturn (" + parms[i].CSType + ") Args[" + (i - 1) + "];");
sw.WriteLine ("\t\t\t}");
sw.WriteLine ("\t\t}");
sw.WriteLine ();
}
}
sw.WriteLine ("\t}");
sw.WriteLine ("}");
sw.Close ();
argsname = container_type.NS + "Sharp." + argsname;
return container_type.NS + "Sharp." + handler;
}
public void Generate (StreamWriter sw, ClassBase implementor, bool gen_docs)
{
string cname = "\"" + elem.GetAttribute("cname") + "\"";
string qual_marsh = marsh;
if (gen_docs)
GenComments (sw);
string argsname;
string handler = GenHandler (out argsname);
sw.WriteLine("\t\t[GLib.Signal("+ cname + ")]");
sw.Write("\t\tpublic ");
if (elem.HasAttribute("new_flag") || (container_type != null && container_type.GetSignalRecursively (Name) != null) || (implementor != null && implementor.GetSignalRecursively (Name) != null))
sw.Write("new ");
sw.WriteLine("event " + handler + " " + Name + " {");
sw.WriteLine("\t\t\tadd {");
sw.WriteLine("\t\t\t\tif (EventList[" + cname + "] == null)");
sw.Write("\t\t\t\t\tSignals[" + cname + "] = new " + qual_marsh);
sw.Write("(this, Handle, " + cname + ", value, System.Type.GetType(\"" + argsname);
if (argsname != "System.EventArgs")
sw.Write("," + container_type.NS.ToLower() + "-sharp");
sw.WriteLine("\"));");
sw.WriteLine("\t\t\t\tEventList.AddHandler(" + cname + ", value);");
sw.WriteLine("\t\t\t}");
sw.WriteLine("\t\t\tremove {");
sw.WriteLine("\t\t\t\tEventList.RemoveHandler(" + cname + ", value);");
sw.WriteLine("\t\t\t\tif (EventList[" + cname + "] == null)");
sw.WriteLine("\t\t\t\t\tSignals.Remove(" + cname + ");");
sw.WriteLine("\t\t\t}");
sw.WriteLine("\t\t}");
sw.WriteLine();
Statistics.SignalCount++;
}
}
}