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// GtkSharp.Generation.StructField.cs - The Structure Field generation
// Class.
//
// Author: Mike Kestner <mkestner@ximian.com>
//
// Copyright (c) 2004-2005 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.IO;
using System.Xml;
public class StructField : FieldBase {
public static int bitfields;
public StructField (XmlElement elem, ClassBase container_type) : base (elem, container_type) {}
protected override string DefaultAccess {
get {
if (IsPadding)
return "private";
return "public";
}
}
int ArrayLength {
get {
if (!IsArray)
return 0;
int result;
try {
result = Int32.Parse (elem.GetAttribute("array_len"));
} catch (Exception) {
Console.Write ("Non-numeric array_len: " + elem.GetAttribute("array_len"));
Console.WriteLine (" warning: array field {0} incorrectly generated", Name);
result = 0;
}
return result;
}
}
bool IsNullTermArray {
get { return elem.GetAttributeAsBoolean ("null_term_array"); }
}
public new string CSType {
get {
string type = base.CSType;
if (IsArray)
type += "[]";
else if ((IsPointer || SymbolTable.Table.IsOpaque (CType)) && type != "string")
type = "IntPtr";
return type;
}
}
bool visible = false;
internal bool Visible {
get {
return visible;
}
}
public string EqualityName {
get {
SymbolTable table = SymbolTable.Table;
string wrapped_name = SymbolTable.Table.MangleName (CName);
IGeneratable gen = table [CType];
if (IsArray || gen is IAccessor)
return StudlyName;
else if (IsBitfield)
return Name;
else if (IsPointer && (gen is StructGen || gen is BoxedGen || gen is UnionGen))
return Access != "private" ? wrapped_name : Name;
else if (IsPointer && CSType != "string")
return Name;
else
return Access == "public" ? StudlyName : Name;
}
}
public bool IsPadding {
get {
return (CName.StartsWith ("dummy") || CName.StartsWith ("padding"));
}
}
public bool IsPointer {
get {
return (CType.EndsWith ("*") || CType.EndsWith ("pointer"));
}
}
public new string Name {
get {
string result = "";
if ((IsPointer || SymbolTable.Table.IsOpaque (CType)) && CSType != "string")
result = "_";
result += SymbolTable.Table.MangleName (CName);
return result;
}
}
public string StudlyName {
get {
string studly = base.Name;
if (studly == "")
throw new Exception ("API file must be regenerated with a current version of the GAPI parser. It is incompatible with this version of the GAPI code generator.");
return studly;
}
}
public override void Generate (GenerationInfo gen_info, string indent)
{
if (Hidden)
return;
visible = Access != "private";
StreamWriter sw = gen_info.Writer;
SymbolTable table = SymbolTable.Table;
string wrapped = table.GetCSType (CType);
string wrapped_name = SymbolTable.Table.MangleName (CName);
IGeneratable gen = table [CType];
if (IsArray && !IsNullTermArray) {
sw.WriteLine (indent + "[MarshalAs (UnmanagedType.ByValArray, SizeConst=" + ArrayLength + ")]");
sw.WriteLine (indent + "{0} {1} {2};", Access, CSType, StudlyName);
} else if (IsArray && IsNullTermArray) {
sw.WriteLine (indent + "private {0} {1};", "IntPtr", StudlyName+ "Ptr");
if ((Readable || Writable) && Access == "public") {
sw.WriteLine (indent + "public {0} {1} {{", CSType, StudlyName);
if (Readable)
sw.WriteLine (indent + "\tget {{ return GLib.Marshaller.StructArrayFromNullTerminatedIntPtr<{0}> ({1}); }}",
base.CSType, StudlyName + "Ptr");
if (Writable)
sw.WriteLine (indent + "\tset {{ {0} = GLib.Marshaller.StructArrayToNullTerminatedStructArrayIntPtr<{1}> (value); }}",
StudlyName + "Ptr", base.CSType);
sw.WriteLine (indent + "}");
}
} else if (IsBitfield) {
base.Generate (gen_info, indent);
} else if (gen is IAccessor) {
sw.WriteLine (indent + "private {0} {1};", gen.MarshalType, Name);
if (Access != "private") {
IAccessor acc = table [CType] as IAccessor;
sw.WriteLine (indent + Access + " " + wrapped + " " + StudlyName + " {");
acc.WriteAccessors (sw, indent + "\t", Name);
sw.WriteLine (indent + "}");
}
} else if (IsPointer && (gen is StructGen || gen is BoxedGen || gen is UnionGen)) {
sw.WriteLine (indent + "private {0} {1};", CSType, Name);
sw.WriteLine ();
if (Access != "private") {
sw.WriteLine (indent + Access + " " + wrapped + " " + wrapped_name + " {");
sw.WriteLine (indent + "\tget { return " + table.FromNative (CType, Name) + "; }");
sw.WriteLine (indent + "}");
}
} else if (IsPointer && CSType != "string") {
// FIXME: probably some fields here which should be visible.
visible = false;
sw.WriteLine (indent + "private {0} {1};", CSType, Name);
} else {
sw.WriteLine (indent + "{0} {1} {2};", Access, CSType, Access == "public" ? StudlyName : Name);
}
}
}
}
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