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GtkSharp/generator/InterfaceGen.cs
Mike Kestner 6fa5d61269 2007-10-24 Mike Kestner <mkestner@novell.com> 
* generator/InterfaceGen.cs: generate an Implementor prop on the
	adapters to obtain the underlying object.

svn path=/trunk/gtk-sharp/; revision=88124
2007-10-24 20:06:13 +00:00

335 lines
10 KiB
C#
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// GtkSharp.Generation.InterfaceGen.cs - The Interface Generatable.
//
// Author: Mike Kestner <mkestner@speakeasy.net>
//
// Copyright (c) 2001-2003 Mike Kestner
// Copyright (c) 2004, 2007 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 InterfaceGen : ObjectBase {
ArrayList vms = new ArrayList ();
ArrayList members = new ArrayList ();
public InterfaceGen (XmlElement ns, XmlElement elem) : base (ns, elem)
{
foreach (XmlNode node in elem.ChildNodes) {
switch (node.Name) {
case "virtual_method":
VirtualMethod vm = new VirtualMethod (node as XmlElement, this);
vms.Add (vm);
members.Add (vm);
break;
case "signal":
object sig = sigs [(node as XmlElement).GetAttribute ("name")];
if (sig == null)
sig = new Signal (node as XmlElement, this);
members.Add (sig);
break;
default:
if (!IsNodeNameHandled (node.Name))
Console.WriteLine ("Unexpected node " + node.Name + " in " + CName);
break;
}
}
}
public override string FromNative (string var, bool owned)
{
return QualifiedName + "Adapter.GetObject (" + var + ", " + (owned ? "true" : "false") + ")";
}
public override bool ValidateForSubclass ()
{
ArrayList invalids = new ArrayList ();
foreach (Method method in methods.Values) {
if (!method.Validate ()) {
Console.WriteLine ("in type " + QualifiedName);
invalids.Add (method);
}
}
foreach (Method method in invalids)
methods.Remove (method.Name);
invalids.Clear ();
return base.ValidateForSubclass ();
}
string IfaceName {
get {
return Name + "Iface";
}
}
void GenerateIfaceStruct (StreamWriter sw)
{
sw.WriteLine ("\t\tstatic " + IfaceName + " iface;");
sw.WriteLine ();
sw.WriteLine ("\t\tstruct " + IfaceName + " {");
sw.WriteLine ("\t\t\tpublic IntPtr gtype;");
sw.WriteLine ("\t\t\tpublic IntPtr itype;");
sw.WriteLine ();
foreach (object member in members) {
if (member is Signal) {
Signal sig = member as Signal;
sw.WriteLine ("\t\t\tpublic IntPtr {0};", sig.ClassFieldName);
} else if (member is VirtualMethod) {
VirtualMethod vm = member as VirtualMethod;
bool has_target = methods [vm.Name] != null;
if (!has_target)
Console.WriteLine ("Interface " + QualifiedName + " virtual method " + vm.Name + " has no matching method to invoke.");
string type = has_target && vm.IsValid ? vm.Name + "Delegate" : "IntPtr";
sw.WriteLine ("\t\t\tpublic " + type + " " + vm.CName + ";");
}
}
sw.WriteLine ("\t\t}");
sw.WriteLine ();
}
void GenerateStaticCtor (StreamWriter sw)
{
sw.WriteLine ("\t\tstatic " + Name + "Adapter ()");
sw.WriteLine ("\t\t{");
foreach (VirtualMethod vm in vms) {
bool has_target = methods [vm.Name] != null;
if (has_target && vm.IsValid)
sw.WriteLine ("\t\t\tiface.{0} = new {1}Delegate ({1}Callback);", vm.CName, vm.Name);
}
sw.WriteLine ("\t\t}");
sw.WriteLine ();
}
void GenerateInitialize (StreamWriter sw)
{
sw.WriteLine ("\t\tstatic void Initialize (IntPtr ifaceptr, IntPtr data)");
sw.WriteLine ("\t\t{");
sw.WriteLine ("\t\t\t" + IfaceName + " native_iface = (" + IfaceName + ") Marshal.PtrToStructure (ifaceptr, typeof (" + IfaceName + "));");
foreach (VirtualMethod vm in vms)
sw.WriteLine ("\t\t\tnative_iface." + vm.CName + " = iface." + vm.CName + ";");
sw.WriteLine ("\t\t\tMarshal.StructureToPtr (native_iface, ifaceptr, false);");
sw.WriteLine ("\t\t\tGCHandle gch = (GCHandle) data;");
sw.WriteLine ("\t\t\tgch.Free ();");
sw.WriteLine ("\t\t}");
sw.WriteLine ();
}
void GenerateCallbacks (StreamWriter sw)
{
foreach (VirtualMethod vm in vms) {
if (methods [vm.Name] != null) {
sw.WriteLine ();
vm.GenerateCallback (sw);
}
}
}
void GenerateCtors (StreamWriter sw)
{
sw.WriteLine ("\t\tpublic " + Name + "Adapter ()");
sw.WriteLine ("\t\t{");
sw.WriteLine ("\t\t\tInitHandler = new GLib.GInterfaceInitHandler (Initialize);");
sw.WriteLine ("\t\t}");
sw.WriteLine ();
sw.WriteLine ("\t\t{0}Implementor implementor;", Name);
sw.WriteLine ();
sw.WriteLine ("\t\tpublic {0}Adapter ({0}Implementor implementor)", Name);
sw.WriteLine ("\t\t{");
sw.WriteLine ("\t\t\tthis.implementor = implementor;");
sw.WriteLine ("\t\t}");
sw.WriteLine ();
}
void GenerateGType (StreamWriter sw)
{
Method m = GetMethod ("GetType");
m.GenerateImport (sw);
sw.WriteLine ("\t\tpublic override GLib.GType GType {");
sw.WriteLine ("\t\t\tget {");
sw.WriteLine ("\t\t\t\treturn new GLib.GType (" + m.CName + " ());");
sw.WriteLine ("\t\t\t}");
sw.WriteLine ("\t\t}");
sw.WriteLine ();
}
void GenerateHandleProp (StreamWriter sw)
{
sw.WriteLine ("\t\tpublic override IntPtr Handle {");
sw.WriteLine ("\t\t\tget {");
sw.WriteLine ("\t\t\t\treturn implementor == null ? IntPtr.Zero : implementor.Handle;");
sw.WriteLine ("\t\t\t}");
sw.WriteLine ("\t\t}");
sw.WriteLine ();
}
void GenerateGetObject (StreamWriter sw)
{
sw.WriteLine ("\t\tpublic static " + Name + " GetObject (IntPtr handle, bool owned)");
sw.WriteLine ("\t\t{");
sw.WriteLine ("\t\t\tGLib.Object obj = GLib.Object.GetObject (handle, owned);");
sw.WriteLine ("\t\t\tif (obj is " + Name + "Implementor)");
sw.WriteLine ("\t\t\t\treturn new {0}Adapter (obj as {0}Implementor);", Name);
sw.WriteLine ("\t\t\telse");
sw.WriteLine ("\t\t\t\treturn obj as {0};", Name);
sw.WriteLine ("\t\t}");
sw.WriteLine ();
}
void GenerateImplementorProp (StreamWriter sw)
{
sw.WriteLine ("\t\tpublic " + Name + "Implementor Implementor {");
sw.WriteLine ("\t\t\tget {");
sw.WriteLine ("\t\t\t\treturn implementor;");
sw.WriteLine ("\t\t\t}");
sw.WriteLine ("\t\t}");
sw.WriteLine ();
}
void GenerateAdapter (GenerationInfo gen_info)
{
StreamWriter sw = gen_info.Writer = gen_info.OpenStream (Name + "Adapter");
sw.WriteLine ("namespace " + NS + " {");
sw.WriteLine ();
sw.WriteLine ("\tusing System;");
sw.WriteLine ("\tusing System.Runtime.InteropServices;");
sw.WriteLine ();
sw.WriteLine ("#region Autogenerated code");
sw.WriteLine ("\tpublic class " + Name + "Adapter : GLib.GInterfaceAdapter, " + QualifiedName + " {");
sw.WriteLine ();
GenerateIfaceStruct (sw);
GenerateStaticCtor (sw);
GenerateCallbacks (sw);
GenerateInitialize (sw);
GenerateCtors (sw);
GenerateGType (sw);
GenerateHandleProp (sw);
GenerateGetObject (sw);
GenerateImplementorProp (sw);
GenProperties (gen_info, null);
foreach (Signal sig in sigs.Values) {
sig.GenCallback (sw);
sig.GenEvent (sw, null, "GLib.Object.GetObject (Handle)");
}
Method temp = methods ["GetType"] as Method;
if (temp != null)
methods.Remove ("GetType");
GenMethods (gen_info, new Hashtable (), this);
if (temp != null)
methods ["GetType"] = temp;
sw.WriteLine ("#endregion");
string custom = Path.Combine (gen_info.CustomDir, Name + "Adapter.custom");
if (File.Exists (custom)) {
sw.WriteLine ("#region Customized extensions");
sw.WriteLine ("#line 1 \"" + Name + "Adapter.custom\"");
using (StreamReader sr = new StreamReader(new FileStream (custom, FileMode.Open, FileAccess.Read)))
sw.WriteLine (sr.ReadToEnd ());
sw.WriteLine ("#endregion");
}
sw.WriteLine ("\t}");
sw.WriteLine ("}");
sw.Close ();
gen_info.Writer = null;
}
public override void Generate (GenerationInfo gen_info)
{
GenerateAdapter (gen_info);
StreamWriter sw = gen_info.Writer = gen_info.OpenStream (Name);
sw.WriteLine ("namespace " + NS + " {");
sw.WriteLine ();
sw.WriteLine ("\tusing System;");
sw.WriteLine ();
sw.WriteLine ("#region Autogenerated code");
sw.WriteLine ("\tpublic interface " + Name + " : GLib.IWrapper {");
sw.WriteLine ();
foreach (Signal sig in sigs.Values) {
sig.GenerateDecl (sw);
sig.GenEventHandler (gen_info);
}
foreach (Method method in methods.Values) {
if (IgnoreMethod (method, this))
continue;
method.GenerateDecl (sw);
}
foreach (Property prop in props.Values)
prop.GenerateDecl (sw, "\t\t");
AppendCustom (sw, gen_info.CustomDir);
sw.WriteLine ("\t}");
sw.WriteLine ();
sw.WriteLine ("\t[GLib.GInterface (typeof (" + Name + "Adapter))]");
sw.WriteLine ("\tpublic interface " + Name + "Implementor : GLib.IWrapper {");
sw.WriteLine ();
Hashtable vm_table = new Hashtable ();
foreach (VirtualMethod vm in vms)
vm_table [vm.Name] = vm;
foreach (VirtualMethod vm in vms) {
if (vm_table [vm.Name] == null)
continue;
else if (!vm.IsValid) {
vm_table.Remove (vm.Name);
continue;
} else if (vm.IsGetter || vm.IsSetter) {
string cmp_name = (vm.IsGetter ? "Set" : "Get") + vm.Name.Substring (3);
VirtualMethod cmp = vm_table [cmp_name] as VirtualMethod;
if (cmp != null && (cmp.IsGetter || cmp.IsSetter)) {
if (vm.IsSetter)
cmp.GenerateDeclaration (sw, vm);
else
vm.GenerateDeclaration (sw, cmp);
vm_table.Remove (cmp.Name);
} else
vm.GenerateDeclaration (sw, null);
vm_table.Remove (vm.Name);
} else {
vm.GenerateDeclaration (sw, null);
vm_table.Remove (vm.Name);
}
}
sw.WriteLine ("\t}");
sw.WriteLine ("#endregion");
sw.WriteLine ("}");
sw.Close ();
gen_info.Writer = null;
Statistics.IFaceCount++;
}
}
}
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