mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-09 10:59:39 +00:00
271 lines
9.1 KiB
C#
271 lines
9.1 KiB
C#
// GtkSharp.Generation.FieldBase.cs - base class for struct and object
|
|
// fields
|
|
//
|
|
// Copyright (c) 2004 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 abstract class FieldBase : PropertyBase {
|
|
public FieldBase (XmlElement elem, ClassBase container_type) : base (elem, container_type) {}
|
|
|
|
public virtual bool Validate ()
|
|
{
|
|
if (!Ignored && !Hidden && CSType == "") {
|
|
Console.Write("Field {0} has unknown Type {1} ", Name, CType);
|
|
Statistics.ThrottledCount++;
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
protected virtual bool Readable {
|
|
get {
|
|
return elem.GetAttribute ("readable") != "false";
|
|
}
|
|
}
|
|
|
|
protected virtual bool Writable {
|
|
get {
|
|
return elem.GetAttribute ("writeable") != "false";
|
|
}
|
|
}
|
|
|
|
protected abstract string DefaultAccess { get; }
|
|
|
|
protected string Access {
|
|
get {
|
|
return elem.HasAttribute ("access") ? elem.GetAttribute ("access") : DefaultAccess;
|
|
}
|
|
}
|
|
|
|
public bool IsArray {
|
|
get {
|
|
return elem.HasAttribute("array_len") || elem.HasAttribute("array");
|
|
}
|
|
}
|
|
|
|
public bool IsBitfield {
|
|
get {
|
|
return elem.HasAttribute("bits");
|
|
}
|
|
}
|
|
|
|
public bool Ignored {
|
|
get {
|
|
if (container_type.GetProperty (Name) != null)
|
|
return true;
|
|
if (IsArray)
|
|
return true;
|
|
if (Access == "private" && (Getter == null) && (Setter == null))
|
|
return true;
|
|
return false;
|
|
}
|
|
}
|
|
|
|
string getterName, setterName;
|
|
string getOffsetName, offsetName;
|
|
|
|
void CheckGlue ()
|
|
{
|
|
getterName = setterName = getOffsetName = null;
|
|
if (DefaultAccess != "public" && (!elem.HasAttribute ("access") || (Access != "public" && Access != "protected" && Access != "internal")))
|
|
return;
|
|
|
|
string prefix = (container_type.NS + "Sharp_" + container_type.NS + "_" + container_type.Name).Replace(".", "__").ToLower ();
|
|
|
|
if (IsBitfield) {
|
|
if (Readable && Getter == null)
|
|
getterName = prefix + "_get_" + CName;
|
|
if (Writable && Setter == null)
|
|
setterName = prefix + "_set_" + CName;
|
|
} else {
|
|
if ((Readable && Getter == null) || (Writable && Setter == null)) {
|
|
offsetName = CName + "_offset";
|
|
getOffsetName = prefix + "_get_" + offsetName;
|
|
}
|
|
}
|
|
}
|
|
|
|
protected override void GenerateImports (GenerationInfo gen_info, string indent)
|
|
{
|
|
StreamWriter sw = gen_info.Writer;
|
|
SymbolTable table = SymbolTable.Table;
|
|
|
|
if (getterName != null) {
|
|
sw.WriteLine (indent + "[DllImport (\"{0}\")]", gen_info.GluelibName);
|
|
sw.WriteLine (indent + "extern static {0} {1} ({2} raw);",
|
|
table.GetMarshalReturnType (CType), getterName,
|
|
container_type.MarshalType);
|
|
}
|
|
|
|
if (setterName != null) {
|
|
sw.WriteLine (indent + "[DllImport (\"{0}\")]", gen_info.GluelibName);
|
|
sw.WriteLine (indent + "extern static void {0} ({1} raw, {2} value);",
|
|
setterName, container_type.MarshalType, table.GetMarshalType (CType));
|
|
}
|
|
|
|
if (getOffsetName != null) {
|
|
sw.WriteLine (indent + "[DllImport (\"{0}\")]", gen_info.GluelibName);
|
|
sw.WriteLine (indent + "extern static uint {0} ();", getOffsetName);
|
|
sw.WriteLine ();
|
|
sw.WriteLine (indent + "static uint " + offsetName + " = " + getOffsetName + " ();");
|
|
}
|
|
|
|
base.GenerateImports (gen_info, indent);
|
|
}
|
|
|
|
public virtual void Generate (GenerationInfo gen_info, string indent)
|
|
{
|
|
if (Ignored || Hidden)
|
|
return;
|
|
|
|
CheckGlue ();
|
|
if ((getterName != null || setterName != null || getOffsetName != null) &&
|
|
gen_info.GlueWriter == null) {
|
|
Console.WriteLine ("No glue-filename specified, can't create glue for {0}.{1}",
|
|
container_type.Name, Name);
|
|
return;
|
|
}
|
|
|
|
GenerateImports (gen_info, indent);
|
|
|
|
SymbolTable table = SymbolTable.Table;
|
|
StreamWriter sw = gen_info.Writer;
|
|
string modifiers = elem.HasAttribute ("new_flag") ? "new " : "";
|
|
bool is_struct = table.IsStruct (CType) || table.IsBoxed (CType);
|
|
string access = elem.HasAttribute ("access") ? elem.GetAttribute ("access") : "public";
|
|
|
|
sw.WriteLine (indent + access + " " + modifiers + CSType + " " + Name + " {");
|
|
|
|
if (Getter != null) {
|
|
sw.Write (indent + "\tget ");
|
|
Getter.GenerateBody (gen_info, container_type, "\t");
|
|
sw.WriteLine ("");
|
|
} else if (getterName != null) {
|
|
sw.WriteLine (indent + "\tget {");
|
|
container_type.Prepare (sw, indent + "\t\t");
|
|
sw.WriteLine (indent + "\t\t" + CSType + " result = " + table.FromNativeReturn (ctype, getterName + " (" + container_type.CallByName () + ")") + ";");
|
|
container_type.Finish (sw, indent + "\t\t");
|
|
sw.WriteLine (indent + "\t\treturn result;");
|
|
sw.WriteLine (indent + "\t}");
|
|
} else if (Readable && offsetName != null) {
|
|
sw.WriteLine (indent + "\tget {");
|
|
sw.WriteLine (indent + "\t\tunsafe {");
|
|
if (is_struct) {
|
|
sw.WriteLine (indent + "\t\t\t" + CSType + "* raw_ptr = (" + CSType + "*)(((byte*)" + container_type.CallByName () + ") + " + offsetName + ");");
|
|
sw.WriteLine (indent + "\t\t\treturn *raw_ptr;");
|
|
} else {
|
|
sw.WriteLine (indent + "\t\t\t" + table.GetMarshalReturnType (CType) + "* raw_ptr = (" + table.GetMarshalReturnType (CType) + "*)(((byte*)" + container_type.CallByName () + ") + " + offsetName + ");");
|
|
sw.WriteLine (indent + "\t\t\treturn " + table.FromNativeReturn (ctype, "(*raw_ptr)") + ";");
|
|
}
|
|
sw.WriteLine (indent + "\t\t}");
|
|
sw.WriteLine (indent + "\t}");
|
|
}
|
|
|
|
if (Setter != null) {
|
|
sw.Write (indent + "\tset ");
|
|
Setter.GenerateBody (gen_info, container_type, "\t");
|
|
sw.WriteLine ("");
|
|
} else if (setterName != null) {
|
|
sw.WriteLine (indent + "\tset {");
|
|
container_type.Prepare (sw, indent + "\t\t");
|
|
sw.WriteLine (indent + "\t\t" + setterName + " (" + container_type.CallByName () + ", " + table.CallByName (ctype, "value") + ");");
|
|
container_type.Finish (sw, indent + "\t\t");
|
|
sw.WriteLine (indent + "\t}");
|
|
} else if (Writable && offsetName != null) {
|
|
sw.WriteLine (indent + "\tset {");
|
|
sw.WriteLine (indent + "\t\tunsafe {");
|
|
if (is_struct) {
|
|
sw.WriteLine (indent + "\t\t\t" + CSType + "* raw_ptr = (" + CSType + "*)(((byte*)" + container_type.CallByName () + ") + " + offsetName + ");");
|
|
sw.WriteLine (indent + "\t\t\t*raw_ptr = value;");
|
|
} else {
|
|
sw.WriteLine (indent + "\t\t\t" + table.GetMarshalReturnType (CType) + "* raw_ptr = (" + table.GetMarshalReturnType (CType) + "*)(((byte*)" + container_type.CallByName () + ") + " + offsetName + ");");
|
|
sw.WriteLine (indent + "\t\t\t*raw_ptr = " + table.ToNativeReturn (ctype, "value") + ";");
|
|
}
|
|
sw.WriteLine (indent + "\t\t}");
|
|
sw.WriteLine (indent + "\t}");
|
|
}
|
|
|
|
sw.WriteLine (indent + "}");
|
|
sw.WriteLine ("");
|
|
|
|
if (getterName != null || setterName != null || getOffsetName != null)
|
|
GenerateGlue (gen_info);
|
|
}
|
|
|
|
protected void GenerateGlue (GenerationInfo gen_info)
|
|
{
|
|
StreamWriter sw = gen_info.GlueWriter;
|
|
SymbolTable table = SymbolTable.Table;
|
|
|
|
string FieldCType = CType.Replace ("-", " ");
|
|
bool byref = table[CType] is ByRefGen || table[CType] is StructGen;
|
|
string GlueCType = byref ? FieldCType + " *" : FieldCType;
|
|
string ContainerCType = container_type.CName;
|
|
string ContainerCName = container_type.Name.ToLower ();
|
|
|
|
if (getterName != null) {
|
|
sw.WriteLine ("{0} {1} ({2} *{3});",
|
|
GlueCType, getterName, ContainerCType, ContainerCName);
|
|
}
|
|
if (setterName != null) {
|
|
sw.WriteLine ("void {0} ({1} *{2}, {3} value);",
|
|
setterName, ContainerCType, ContainerCName, GlueCType);
|
|
}
|
|
if (getOffsetName != null)
|
|
sw.WriteLine ("guint {0} (void);", getOffsetName);
|
|
sw.WriteLine ("");
|
|
|
|
if (getterName != null) {
|
|
sw.WriteLine (GlueCType);
|
|
sw.WriteLine ("{0} ({1} *{2})", getterName, ContainerCType, ContainerCName);
|
|
sw.WriteLine ("{");
|
|
sw.WriteLine ("\treturn ({0}){1}{2}->{3};", GlueCType,
|
|
byref ? "&" : "", ContainerCName, CName);
|
|
sw.WriteLine ("}");
|
|
sw.WriteLine ("");
|
|
}
|
|
if (setterName != null) {
|
|
sw.WriteLine ("void");
|
|
sw.WriteLine ("{0} ({1} *{2}, {3} value)",
|
|
setterName, ContainerCType, ContainerCName, GlueCType);
|
|
sw.WriteLine ("{");
|
|
sw.WriteLine ("\t{0}->{1} = ({2}){3}value;", ContainerCName, CName,
|
|
FieldCType, byref ? "*" : "");
|
|
sw.WriteLine ("}");
|
|
sw.WriteLine ("");
|
|
}
|
|
if (getOffsetName != null) {
|
|
sw.WriteLine ("guint");
|
|
sw.WriteLine ("{0} (void)", getOffsetName);
|
|
sw.WriteLine ("{");
|
|
sw.WriteLine ("\treturn (guint)G_STRUCT_OFFSET ({0}, {1});",
|
|
ContainerCType, CName);
|
|
sw.WriteLine ("}");
|
|
sw.WriteLine ("");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|