mirror of
https://github.com/Ryujinx/GtkSharp.git
synced 2024-07-29 06:02:08 +02:00
b35b48248c
* generator/Signal.cs : Dispose the values passed to g_signal_chain_from_overriden in base VM invocations. [Fixes #73522] svn path=/trunk/gtk-sharp/; revision=42312
382 lines
14 KiB
C#
382 lines
14 KiB
C#
// GtkSharp.Generation.Signal.cs - The Signal Generatable.
|
|
//
|
|
// Author: Mike Kestner <mkestner@speakeasy.net>
|
|
//
|
|
// Copyright (c) 2001-2003 Mike Kestner
|
|
// Copyright (c) 2003-2005 Novell, Inc.
|
|
//
|
|
// 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.
|
|
|
|
|
|
namespace GtkSharp.Generation {
|
|
|
|
using System;
|
|
using System.Collections;
|
|
using System.IO;
|
|
using System.Xml;
|
|
|
|
public class Signal {
|
|
|
|
private string name;
|
|
private XmlElement elem;
|
|
private ReturnValue retval;
|
|
private Parameters parms;
|
|
private ClassBase container_type;
|
|
|
|
public Signal (XmlElement elem, ClassBase container_type)
|
|
{
|
|
this.elem = elem;
|
|
name = elem.GetAttribute ("name");
|
|
retval = new ReturnValue (elem ["return-type"]);
|
|
parms = new Parameters (elem["parameters"]);
|
|
this.container_type = container_type;
|
|
}
|
|
|
|
public string Name {
|
|
get {
|
|
return name;
|
|
}
|
|
set {
|
|
name = value;
|
|
}
|
|
}
|
|
|
|
public bool Validate ()
|
|
{
|
|
if (Name == "") {
|
|
Console.Write ("bad signal " + Name);
|
|
Statistics.ThrottledCount++;
|
|
return false;
|
|
}
|
|
|
|
if (!parms.Validate ())
|
|
return false;
|
|
|
|
if (!retval.Validate ())
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
public void GenerateDecl (StreamWriter sw)
|
|
{
|
|
if (elem.HasAttribute("new_flag") || (container_type != null && container_type.GetSignalRecursively (Name) != null))
|
|
sw.Write("new ");
|
|
|
|
sw.WriteLine ("\t\tevent " + EventHandlerQualifiedName + " " + Name + ";");
|
|
}
|
|
|
|
public string CName {
|
|
get {
|
|
return "\"" + elem.GetAttribute("cname") + "\"";
|
|
}
|
|
}
|
|
|
|
public string CallbackName {
|
|
get {
|
|
return Name + "SignalCallback";
|
|
}
|
|
}
|
|
|
|
private string CallbackSig {
|
|
get {
|
|
string result = "";
|
|
for (int i = 0; i < parms.Count; i++) {
|
|
if (i > 0)
|
|
result += ", ";
|
|
|
|
if (parms[i].PassAs != "")
|
|
result += parms[i].PassAs + " ";
|
|
result += (parms[i].MarshalType + " arg" + i);
|
|
}
|
|
result += ", IntPtr gch";
|
|
|
|
result = result.Replace ("out ref", "out");
|
|
result = result.Replace ("ref ref", "ref");
|
|
|
|
return result;
|
|
}
|
|
}
|
|
|
|
public string DelegateName {
|
|
get {
|
|
return Name + "SignalDelegate";
|
|
}
|
|
}
|
|
|
|
private string EventArgsName {
|
|
get {
|
|
if (IsEventHandler)
|
|
return "EventArgs";
|
|
else
|
|
return Name + "Args";
|
|
}
|
|
}
|
|
|
|
private string EventArgsQualifiedName {
|
|
get {
|
|
if (IsEventHandler)
|
|
return "System.EventArgs";
|
|
else
|
|
return container_type.NS + "." + Name + "Args";
|
|
}
|
|
}
|
|
|
|
private string EventHandlerName {
|
|
get {
|
|
if (IsEventHandler)
|
|
return "EventHandler";
|
|
else if (SymbolTable.Table [container_type.NS + Name + "Handler"] != null)
|
|
return Name + "EventHandler";
|
|
else
|
|
return Name + "Handler";
|
|
}
|
|
}
|
|
|
|
private string EventHandlerQualifiedName {
|
|
get {
|
|
if (IsEventHandler)
|
|
return "System.EventHandler";
|
|
else
|
|
return container_type.NS + "." + EventHandlerName;
|
|
}
|
|
}
|
|
|
|
public bool IsEventHandler {
|
|
get {
|
|
return retval.CSType == "void" && parms.Count == 1 && (parms [0].Generatable is ObjectGen || parms [0].Generatable is InterfaceGen);
|
|
}
|
|
}
|
|
|
|
private bool IsVoid {
|
|
get {
|
|
return retval.CSType == "void";
|
|
}
|
|
}
|
|
|
|
private string ReturnGType {
|
|
get {
|
|
ClassBase igen = SymbolTable.Table.GetClassGen (retval.CType);
|
|
|
|
if (igen is ObjectGen)
|
|
return "GLib.GType.Object";
|
|
if (igen is BoxedGen)
|
|
return retval.CSType + ".GType";
|
|
|
|
switch (retval.CSType) {
|
|
case "bool":
|
|
return "GLib.GType.Boolean";
|
|
case "string":
|
|
return "GLib.GType.String";
|
|
case "int":
|
|
return "GLib.GType.Int";
|
|
default:
|
|
throw new Exception (retval.CSType);
|
|
}
|
|
}
|
|
}
|
|
|
|
public void GenCallback (StreamWriter sw)
|
|
{
|
|
SymbolTable table = SymbolTable.Table;
|
|
|
|
sw.WriteLine ("\t\t[GLib.CDeclCallback]");
|
|
sw.WriteLine ("\t\tdelegate " + retval.ToNativeType + " " + DelegateName + " (" + CallbackSig + ");");
|
|
sw.WriteLine ();
|
|
sw.WriteLine ("\t\tstatic " + retval.ToNativeType + " " + CallbackName + " (" + CallbackSig + ")");
|
|
sw.WriteLine("\t\t{");
|
|
sw.WriteLine("\t\t\tGLib.Signal sig = ((GCHandle) gch).Target as GLib.Signal;");
|
|
sw.WriteLine("\t\t\tif (sig == null)");
|
|
sw.WriteLine("\t\t\t\tthrow new Exception(\"Unknown signal GC handle received \" + gch);");
|
|
sw.WriteLine();
|
|
sw.WriteLine("\t\t\t{0} args = new {0} ();", EventArgsQualifiedName);
|
|
if (parms.Count > 1)
|
|
sw.WriteLine("\t\t\targs.Args = new object[" + (parms.Count - 1) + "];");
|
|
string finish = "";
|
|
for (int idx = 1; idx < parms.Count; idx++) {
|
|
Parameter p = parms [idx];
|
|
IGeneratable igen = p.Generatable;
|
|
if (p.PassAs == "out")
|
|
finish += "\t\t\targ" + idx + " = " + igen.ToNativeReturn ("((" + p.CSType + ")args.Args[" + (idx - 1) + "])") + ";\n";
|
|
else if (igen is ManualGen) {
|
|
sw.WriteLine("\t\t\tif (arg{0} == IntPtr.Zero)", idx);
|
|
sw.WriteLine("\t\t\t\targs.Args[{0}] = null;", idx - 1);
|
|
sw.WriteLine("\t\t\telse {");
|
|
sw.WriteLine("\t\t\t\targs.Args[" + (idx - 1) + "] = " + igen.FromNative ("arg" + idx) + ";");
|
|
sw.WriteLine("\t\t\t}");
|
|
} else
|
|
sw.WriteLine("\t\t\targs.Args[" + (idx - 1) + "] = " + igen.FromNative ("arg" + idx) + ";");
|
|
}
|
|
sw.WriteLine("\t\t\t{0} handler = ({0}) sig.Handler;", EventHandlerQualifiedName);
|
|
sw.WriteLine("\t\t\thandler (GLib.Object.GetObject (arg0), args);");
|
|
sw.WriteLine (finish);
|
|
if (!IsVoid) {
|
|
sw.WriteLine ("\t\t\tif (args.RetVal == null)");
|
|
if (retval.CSType == "bool")
|
|
sw.WriteLine ("\t\t\t\treturn false;");
|
|
else
|
|
sw.WriteLine ("\t\t\t\tthrow new Exception(\"args.RetVal unset in callback\");");
|
|
|
|
sw.WriteLine("\t\t\treturn " + table.ToNativeReturn (retval.CType, "((" + retval.CSType + ")args.RetVal)") + ";");
|
|
}
|
|
sw.WriteLine("\t\t}");
|
|
sw.WriteLine();
|
|
}
|
|
|
|
private bool NeedNew (ClassBase implementor)
|
|
{
|
|
return elem.HasAttribute ("new_flag") ||
|
|
(container_type != null && container_type.GetSignalRecursively (Name) != null) ||
|
|
(implementor != null && implementor.GetSignalRecursively (Name) != null);
|
|
}
|
|
|
|
public void GenEventHandler (GenerationInfo gen_info)
|
|
{
|
|
if (IsEventHandler)
|
|
return;
|
|
|
|
string ns = container_type.NS;
|
|
|
|
StreamWriter sw = gen_info.OpenStream (EventHandlerName);
|
|
|
|
sw.WriteLine ("namespace " + ns + " {");
|
|
sw.WriteLine ();
|
|
sw.WriteLine ("\tusing System;");
|
|
|
|
sw.WriteLine ();
|
|
sw.WriteLine ("\tpublic delegate void " + EventHandlerName + "(object o, " + EventArgsName + " args);");
|
|
sw.WriteLine ();
|
|
sw.WriteLine ("\tpublic class " + EventArgsName + " : GLib.SignalArgs {");
|
|
for (int i = 1; i < parms.Count; i++) {
|
|
sw.WriteLine ("\t\tpublic " + parms[i].CSType + " " + parms[i].StudlyName + "{");
|
|
if (parms[i].PassAs != "out") {
|
|
sw.WriteLine ("\t\t\tget {");
|
|
sw.WriteLine ("\t\t\t\treturn (" + parms[i].CSType + ") Args[" + (i - 1) + "];");
|
|
sw.WriteLine ("\t\t\t}");
|
|
}
|
|
if (parms[i].PassAs != "") {
|
|
sw.WriteLine ("\t\t\tset {");
|
|
sw.WriteLine ("\t\t\t\tArgs[" + (i - 1) + "] = (" + parms[i].CSType + ")value;");
|
|
sw.WriteLine ("\t\t\t}");
|
|
}
|
|
sw.WriteLine ("\t\t}");
|
|
sw.WriteLine ();
|
|
}
|
|
sw.WriteLine ("\t}");
|
|
sw.WriteLine ("}");
|
|
sw.Close ();
|
|
}
|
|
|
|
private void GenVirtualMethod (StreamWriter sw, ClassBase implementor)
|
|
{
|
|
VMSignature vmsig = new VMSignature (parms);
|
|
sw.WriteLine ("\t\t[GLib.DefaultSignalHandler(Type=typeof(" + (implementor != null ? implementor.QualifiedName : container_type.QualifiedName) + "), ConnectionMethod=\"Override" + Name +"\")]");
|
|
sw.Write ("\t\tprotected ");
|
|
if (NeedNew (implementor))
|
|
sw.Write ("new ");
|
|
sw.WriteLine ("virtual {0} {1} ({2})", retval.CSType, "On" + Name, vmsig.ToString ());
|
|
sw.WriteLine ("\t\t{");
|
|
if (IsVoid)
|
|
sw.WriteLine ("\t\t\tGLib.Value ret = GLib.Value.Empty;");
|
|
else
|
|
sw.WriteLine ("\t\t\tGLib.Value ret = new GLib.Value (" + ReturnGType + ");");
|
|
|
|
sw.WriteLine ("\t\t\tGLib.ValueArray inst_and_params = new GLib.ValueArray (" + parms.Count + ");");
|
|
sw.WriteLine ("\t\t\tGLib.Value[] vals = new GLib.Value [" + parms.Count + "];");
|
|
sw.WriteLine ("\t\t\tvals [0] = new GLib.Value (this);");
|
|
sw.WriteLine ("\t\t\tinst_and_params.Append (vals [0]);");
|
|
string cleanup = "";
|
|
for (int i = 1; i < parms.Count; i++) {
|
|
if (parms [i].PassAs == "out") {
|
|
sw.WriteLine ("\t\t\tvals [" + i + "] = GLib.Value.Empty;");
|
|
cleanup += "\t\t\t" + parms [i].Name + " = (" + parms [i].CSType + ") vals [" + i + "];\n";
|
|
} else if (parms [i].IsLength && parms [i - 1].IsString)
|
|
sw.WriteLine ("\t\t\tvals [" + i + "] = new GLib.Value (" + parms [i-1].Name + ".Length);");
|
|
else
|
|
sw.WriteLine ("\t\t\tvals [" + i + "] = new GLib.Value (" + parms [i].Name + ");");
|
|
|
|
sw.WriteLine ("\t\t\tinst_and_params.Append (vals [" + i + "]);");
|
|
}
|
|
|
|
sw.WriteLine ("\t\t\tg_signal_chain_from_overridden (inst_and_params.ArrayPtr, ref ret);");
|
|
if (cleanup != "")
|
|
sw.WriteLine (cleanup);
|
|
sw.WriteLine ("\t\t\tforeach (GLib.Value v in vals)");
|
|
sw.WriteLine ("\t\t\t\tv.Dispose ();");
|
|
if (!IsVoid)
|
|
sw.WriteLine ("\t\t\treturn (" + retval.CSType + ") ret;");
|
|
sw.WriteLine ("\t\t}\n");
|
|
}
|
|
|
|
private void GenDefaultHandlerDelegate (StreamWriter sw, ClassBase implementor)
|
|
{
|
|
ImportSignature isig = new ImportSignature (parms, container_type.NS);
|
|
ManagedCallString call = new ManagedCallString (parms);
|
|
sw.WriteLine ("\t\t[GLib.CDeclCallback]");
|
|
sw.WriteLine ("\t\tdelegate " + retval.ToNativeType + " " + Name + "VMDelegate (" + isig.ToString () + ");\n");
|
|
sw.WriteLine ("\t\tstatic {0} {1};\n", Name + "VMDelegate", Name + "VMCallback");
|
|
sw.WriteLine ("\t\tstatic " + retval.ToNativeType + " " + Name.ToLower() + "_cb (" + isig.ToString () + ")");
|
|
sw.WriteLine ("\t\t{");
|
|
sw.WriteLine ("\t\t\t{0} obj = GLib.Object.GetObject ({1}, false) as {0};", implementor != null ? implementor.Name : container_type.Name, parms[0].Name);
|
|
sw.Write (call.Setup ("\t\t\t"));
|
|
sw.Write ("\t\t\t{0}", IsVoid ? "" : retval.CSType == retval.ToNativeType ? "return " : retval.CSType + " raw_ret = ");
|
|
sw.WriteLine ("obj.{0} ({1});", "On" + Name, call.ToString ());
|
|
sw.Write (call.Finish ("\t\t\t"));
|
|
if (!IsVoid && retval.CSType != retval.ToNativeType)
|
|
sw.WriteLine ("\t\t\treturn {0};", SymbolTable.Table.ToNativeReturn (retval.CType, "raw_ret"));
|
|
sw.WriteLine ("\t\t}\n");
|
|
sw.WriteLine ("\t\tprivate static void Override" + Name + " (GLib.GType gtype)");
|
|
sw.WriteLine ("\t\t{");
|
|
sw.WriteLine ("\t\t\tif (" + Name + "VMCallback == null)");
|
|
sw.WriteLine ("\t\t\t\t" + Name + "VMCallback = new " + Name + "VMDelegate (" + Name.ToLower() + "_cb);");
|
|
sw.WriteLine ("\t\t\tOverrideVirtualMethod (gtype, " + CName + ", " + Name + "VMCallback);");
|
|
sw.WriteLine ("\t\t}\n");
|
|
}
|
|
|
|
public void Generate (GenerationInfo gen_info, ClassBase implementor)
|
|
{
|
|
StreamWriter sw = gen_info.Writer;
|
|
|
|
if (implementor == null)
|
|
GenEventHandler (gen_info);
|
|
|
|
if (!IsEventHandler)
|
|
GenCallback (sw);
|
|
GenDefaultHandlerDelegate (sw, implementor);
|
|
GenVirtualMethod (sw, implementor);
|
|
string marsh = IsEventHandler ? "" : ", new " + DelegateName + "(" + CallbackName + ")";
|
|
|
|
sw.WriteLine("\t\t[GLib.Signal("+ CName + ")]");
|
|
sw.Write("\t\tpublic ");
|
|
if (NeedNew (implementor))
|
|
sw.Write("new ");
|
|
sw.WriteLine("event " + EventHandlerQualifiedName + " " + Name + " {");
|
|
sw.WriteLine("\t\t\tadd {");
|
|
sw.WriteLine("\t\t\t\tGLib.Signal sig = GLib.Signal.Lookup (this, " + CName + marsh + ");");
|
|
sw.WriteLine("\t\t\t\tsig.AddDelegate (value);");
|
|
sw.WriteLine("\t\t\t}");
|
|
sw.WriteLine("\t\t\tremove {");
|
|
sw.WriteLine("\t\t\t\tGLib.Signal sig = GLib.Signal.Lookup (this, " + CName + marsh + ");");
|
|
sw.WriteLine("\t\t\t\tsig.RemoveDelegate (value);");
|
|
sw.WriteLine("\t\t\t}");
|
|
sw.WriteLine("\t\t}");
|
|
sw.WriteLine();
|
|
|
|
Statistics.SignalCount++;
|
|
}
|
|
}
|
|
}
|
|
|