1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
|
// GtkSharp.Generation.OpaqueGen.cs - The Opaque Generatable.
//
// Author: Mike Kestner <mkestner@speakeasy.net>
//
// Copyright (c) 2001-2003 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.
namespace GtkSharp.Generation {
using System;
using System.Collections;
using System.IO;
using System.Xml;
public class OpaqueGen : HandleBase {
public OpaqueGen (XmlElement ns, XmlElement elem) : base (ns, elem) {}
public override string FromNative(string var, bool owned)
{
return var + " == IntPtr.Zero ? null : (" + QualifiedName + ") GLib.Opaque.GetOpaque (" + var + ", typeof (" + QualifiedName + "), " + (owned ? "true" : "false") + ")";
}
private bool DisableRawCtor {
get {
return Elem.HasAttribute ("disable_raw_ctor");
}
}
public override void Generate (GenerationInfo gen_info)
{
gen_info.CurrentType = Name;
StreamWriter sw = gen_info.Writer = gen_info.OpenStream (Name);
sw.WriteLine ("namespace " + NS + " {");
sw.WriteLine ();
sw.WriteLine ("\tusing System;");
sw.WriteLine ("\tusing System.Collections;");
sw.WriteLine ("\tusing System.Runtime.InteropServices;");
sw.WriteLine ();
sw.WriteLine ("#region Autogenerated code");
SymbolTable table = SymbolTable.Table;
Method ref_, unref, dispose;
GetSpecialMethods (out ref_, out unref, out dispose);
if (IsDeprecated)
sw.WriteLine ("\t[Obsolete]");
sw.Write ("\t{0}{1}class " + Name, IsInternal ? "internal " : "public ", IsAbstract ? "abstract " : String.Empty);
string cs_parent = table.GetCSType(Elem.GetAttribute("parent"));
if (cs_parent != "")
sw.Write (" : " + cs_parent);
else
sw.Write (" : GLib.Opaque");
foreach (string iface in managed_interfaces) {
if (Parent != null && Parent.Implements (iface))
continue;
sw.Write (", " + iface);
}
sw.WriteLine (" {");
sw.WriteLine ();
GenFields (gen_info);
GenMethods (gen_info, null, null);
GenCtors (gen_info);
if (ref_ != null) {
ref_.GenerateImport (sw);
sw.WriteLine ("\t\tprotected override void Ref (IntPtr raw)");
sw.WriteLine ("\t\t{");
sw.WriteLine ("\t\t\tif (!Owned) {");
sw.WriteLine ("\t\t\t\t" + ref_.CName + " (raw);");
sw.WriteLine ("\t\t\t\tOwned = true;");
sw.WriteLine ("\t\t\t}");
sw.WriteLine ("\t\t}");
sw.WriteLine ();
if (ref_.IsDeprecated) {
sw.WriteLine ("\t\t[Obsolete(\"" + QualifiedName + " is now refcounted automatically\")]");
if (ref_.ReturnType == "void")
sw.WriteLine ("\t\tpublic void Ref () {}");
else
sw.WriteLine ("\t\tpublic " + Name + " Ref () { return this; }");
sw.WriteLine ();
}
}
bool finalizer_needed = false;
if (unref != null) {
unref.GenerateImport (sw);
sw.WriteLine ("\t\tprotected override void Unref (IntPtr raw)");
sw.WriteLine ("\t\t{");
sw.WriteLine ("\t\t\tif (Owned) {");
sw.WriteLine ("\t\t\t\t" + unref.CName + " (raw);");
sw.WriteLine ("\t\t\t\tOwned = false;");
sw.WriteLine ("\t\t\t}");
sw.WriteLine ("\t\t}");
sw.WriteLine ();
if (unref.IsDeprecated) {
sw.WriteLine ("\t\t[Obsolete(\"" + QualifiedName + " is now refcounted automatically\")]");
sw.WriteLine ("\t\tpublic void Unref () {}");
sw.WriteLine ();
}
finalizer_needed = true;
}
if (dispose != null) {
dispose.GenerateImport (sw);
sw.WriteLine ("\t\tprotected override void Free (IntPtr raw)");
sw.WriteLine ("\t\t{");
sw.WriteLine ("\t\t\t" + dispose.CName + " (raw);");
sw.WriteLine ("\t\t}");
sw.WriteLine ();
if (dispose.IsDeprecated) {
sw.WriteLine ("\t\t[Obsolete(\"" + QualifiedName + " is now freed automatically\")]");
sw.WriteLine ("\t\tpublic void " + dispose.Name + " () {}");
sw.WriteLine ();
}
finalizer_needed = true;
}
if (finalizer_needed) {
sw.WriteLine ("\t\tclass FinalizerInfo {");
sw.WriteLine ("\t\t\tIntPtr handle;");
sw.WriteLine ();
sw.WriteLine ("\t\t\tpublic FinalizerInfo (IntPtr handle)");
sw.WriteLine ("\t\t\t{");
sw.WriteLine ("\t\t\t\tthis.handle = handle;");
sw.WriteLine ("\t\t\t}");
sw.WriteLine ();
sw.WriteLine ("\t\t\tpublic bool Handler ()");
sw.WriteLine ("\t\t\t{");
if (dispose != null)
sw.WriteLine ("\t\t\t\t{0} (handle);", dispose.CName);
else if (unref != null)
sw.WriteLine ("\t\t\t\t{0} (handle);", unref.CName);
sw.WriteLine ("\t\t\t\treturn false;");
sw.WriteLine ("\t\t\t}");
sw.WriteLine ("\t\t}");
sw.WriteLine ();
sw.WriteLine ("\t\t~{0} ()", Name);
sw.WriteLine ("\t\t{");
sw.WriteLine ("\t\t\tif (!Owned)");
sw.WriteLine ("\t\t\t\treturn;");
sw.WriteLine ("\t\t\tFinalizerInfo info = new FinalizerInfo (Handle);");
sw.WriteLine ("\t\t\tGLib.Timeout.Add (50, new GLib.TimeoutHandler (info.Handler));");
sw.WriteLine ("\t\t}");
sw.WriteLine ();
}
#if false
Method copy = Methods ["Copy"] as Method;
if (copy != null && copy.Parameters.Count == 0) {
sw.WriteLine ("\t\tprotected override GLib.Opaque Copy (IntPtr raw)");
sw.WriteLine ("\t\t{");
sw.WriteLine ("\t\t\tGLib.Opaque result = new " + QualifiedName + " (" + copy.CName + " (raw));");
sw.WriteLine ("\t\t\tresult.Owned = true;");
sw.WriteLine ("\t\t\treturn result;");
sw.WriteLine ("\t\t}");
sw.WriteLine ();
}
#endif
sw.WriteLine ("#endregion");
AppendCustom(sw, gen_info.CustomDir);
sw.WriteLine ("\t}");
sw.WriteLine ("}");
sw.Close ();
gen_info.Writer = null;
Statistics.OpaqueCount++;
}
void GetSpecialMethods (out Method ref_, out Method unref, out Method dispose)
{
ref_ = CheckSpecialMethod (GetMethod ("Ref"));
unref = CheckSpecialMethod (GetMethod ("Unref"));
dispose = GetMethod ("Free");
if (dispose == null) {
dispose = GetMethod ("Destroy");
if (dispose == null)
dispose = GetMethod ("Dispose");
}
dispose = CheckSpecialMethod (dispose);
}
Method CheckSpecialMethod (Method method)
{
if (method == null)
return null;
if (method.ReturnType != "void" &&
method.ReturnType != QualifiedName)
return null;
if (method.Signature.ToString () != "")
return null;
methods.Remove (method.Name);
return method;
}
protected override void GenCtors (GenerationInfo gen_info)
{
if (!DisableRawCtor) {
gen_info.Writer.WriteLine("\t\tpublic " + Name + "(IntPtr raw) : base(raw) {}");
gen_info.Writer.WriteLine();
}
base.GenCtors (gen_info);
}
}
}
|
