Opentk/Source/Bind/Structures/Parameter.cs
2008-01-15 09:34:01 +00:00

543 lines
15 KiB
C#

#region --- License ---
/* Copyright (c) 2006, 2007 Stefanos Apostolopoulos
* See license.txt for license info
*/
#endregion
using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;
namespace Bind.Structures
{
/// <summary>
/// Represents a single parameter of an opengl function.
/// </summary>
public class Parameter : Type
{
string cache;
bool rebuild;
bool unsafe_allowed; // True if the cache may contain unsafe types, false otherwise.
#region Constructors
/// <summary>
/// Creates a new Parameter without type and name.
/// </summary>
public Parameter()
:base()
{
}
/// <summary>
/// Creates a new parameter from the parameters passed (deep copy).
/// </summary>
/// <param name="p">The parameter to copy from.</param>
public Parameter(Parameter p)
: base(p)
{
if (p == null)
return;
this.Name = p.Name;
this.Unchecked = p.Unchecked;
this.UnmanagedType = p.UnmanagedType;
this.Flow = p.Flow;
this.cache = p.cache;
//this.rebuild = false;
}
#endregion
#region public string Name
string _name = String.Empty;
/// <summary>
/// Gets or sets the name of the parameter.
/// </summary>
public string Name
{
get { return _name; }
set
{
if (_name != value)
{
_name = value;
rebuild = true;
}
}
}
#endregion
#region UnmanagedType property
UnmanagedType _unmanaged_type;
/// <summary>
/// Gets or sets the name of the parameter.
/// </summary>
private UnmanagedType UnmanagedType
{
get { return _unmanaged_type; }
set
{
if (_unmanaged_type != value)
{
_unmanaged_type = value;
rebuild = true;
}
}
}
#endregion
#region public FlowDirection Flow
/// <summary>
/// Enumarates the possible flows of a parameter (ie. is this parameter
/// used as input or as output?)
/// </summary>
public enum FlowDirection
{
Undefined = 0,
In,
Out
}
FlowDirection _flow;
/// <summary>
/// Gets or sets the flow of the parameter.
/// </summary>
public FlowDirection Flow
{
get { return _flow; }
set
{
if (_flow != value)
{
_flow = value;
rebuild = true;
}
}
}
#endregion
#region public bool NeedsPin
public bool NeedsPin
{
get
{
return (Array > 0 || Reference || CurrentType == "object") &&
!CurrentType.ToLower().Contains("string");
}
}
#endregion
#region public bool Unchecked
private bool _unchecked;
public bool Unchecked
{
get { return _unchecked; }
set
{
if (_unchecked != value)
{
_unchecked = value;
rebuild = true;
}
}
}
#endregion
#region public override string CurrentType
public override string CurrentType
{
get
{
return base.CurrentType;
}
set
{
base.CurrentType = value;
rebuild = true;
}
}
#endregion
public override string ToString()
{
return ToString(false);
}
#region public string ToString(bool override_unsafe_setting)
public string ToString(bool override_unsafe_setting)
{
rebuild |= unsafe_allowed |= override_unsafe_setting;
unsafe_allowed = override_unsafe_setting;
if (!String.IsNullOrEmpty(cache) && !rebuild)
{
return cache;
}
else
{
StringBuilder sb = new StringBuilder();
if (Flow == FlowDirection.Out)
sb.Append("[Out] ");
else if (Flow == FlowDirection.Undefined)
sb.Append("[In, Out] ");
if (Reference)
{
if (Flow == FlowDirection.Out)
sb.Append("out ");
else
sb.Append("ref ");
}
if (!override_unsafe_setting && ((Settings.Compatibility & Settings.Legacy.NoPublicUnsafeFunctions) != Settings.Legacy.None))
{
if (Pointer)
{
sb.Append("IntPtr");
}
else
{
sb.Append(CurrentType);
if (Array > 0)
sb.Append("[]");
}
}
else
{
sb.Append(CurrentType);
if (Pointer)
sb.Append("*");
if (Array > 0)
sb.Append("[]");
}
if (!String.IsNullOrEmpty(Name))
{
sb.Append(" ");
sb.Append(Utilities.Keywords.Contains(Name) ? "@" + Name : Name);
}
rebuild = false;
cache = sb.ToString();
return cache;
}
}
#endregion
#region override public void Translate(string category)
override public void Translate(string category)
{
base.Translate(category);
// Find out the necessary wrapper types.
if (Pointer)/* || CurrentType == "IntPtr")*/
{
WrapperType = WrapperTypes.ArrayParameter;
if (CurrentType.ToLower().Contains("char") || CurrentType.ToLower().Contains("string"))
{
// char* or string -> [In] String or [Out] StringBuilder
CurrentType =
Flow == Parameter.FlowDirection.Out ?
"System.Text.StringBuilder" :
"System.String";
Pointer = false;
WrapperType = WrapperTypes.None;
}
else if (CurrentType.ToLower().Contains("void") ||
(!String.IsNullOrEmpty(PreviousType) && PreviousType.ToLower().Contains("void"))) /*|| CurrentType.Contains("IntPtr"))*/
{
CurrentType = "IntPtr";
Pointer = false;
WrapperType = WrapperTypes.GenericParameter;
}
}
if (Reference)
WrapperType |= WrapperTypes.ReferenceParameter;
// This causes problems with bool arrays
//if (CurrentType.ToLower().Contains("bool"))
// WrapperType = WrapperTypes.BoolParameter;
}
#endregion
}
/// <summary>
/// Holds the parameter list of an opengl function.
/// </summary>
public class ParameterCollection : List<Parameter>
{
string cache = String.Empty;
string callStringCache = String.Empty;
private bool rebuild = true;
bool hasPointerParameters;
bool hasReferenceParameters;
bool unsafe_types_allowed;
private bool Rebuild
{
get { return rebuild; }
set
{
rebuild = value;
}
}
#region Constructors
public ParameterCollection()
{
}
public ParameterCollection(ParameterCollection pc)
{
foreach (Parameter p in pc)
{
this.Add(new Parameter(p));
}
}
#endregion
#region void BuildCache()
void BuildCache()
{
BuildCallStringCache();
BuildToStringCache(unsafe_types_allowed);
BuildReferenceAndPointerParametersCache();
Rebuild = false;
}
#endregion
#region public bool HasPointerParameters
public bool HasPointerParameters
{
get
{
if (!rebuild)
{
return hasPointerParameters;
}
else
{
BuildCache();
return hasPointerParameters;
}
}
}
#endregion
#region public bool HasReferenceParameters
public bool HasReferenceParameters
{
get
{
if (!Rebuild)
{
return hasReferenceParameters;
}
else
{
BuildCache();
return hasReferenceParameters;
}
}
}
#endregion
#region void BuildReferenceAndPointerParametersCache()
void BuildReferenceAndPointerParametersCache()
{
foreach (Parameter p in this)
{
if (p.Pointer || p.CurrentType.Contains("IntPtr"))
hasPointerParameters = true;
if (p.Reference)
hasReferenceParameters = true;
}
}
#endregion
#region new public void Add(Parameter p)
new public void Add(Parameter p)
{
Rebuild = true;
base.Add(p);
}
#endregion
public override string ToString()
{
return ToString(false);
}
#region public string ToString(bool override_unsafe_setting)
/// <summary>
/// Gets the parameter declaration string.
/// </summary>
/// <param name="override_unsafe_setting">
/// If true, unsafe types will be used even if the Settings.Compatibility.NoPublicUnsafeFunctions flag is set.
/// </param>
/// <returns>The parameter list of an opengl function in the form ( [parameters] )</returns>
public string ToString(bool override_unsafe_setting)
{
Rebuild |= unsafe_types_allowed != override_unsafe_setting;
unsafe_types_allowed = override_unsafe_setting;
if (!Rebuild)
{
return cache;
}
else
{
BuildCache();
return cache;
}
}
#endregion
#region void BuildToStringCache(bool override_unsafe_setting)
void BuildToStringCache(bool override_unsafe_setting)
{
unsafe_types_allowed = override_unsafe_setting;
StringBuilder sb = new StringBuilder();
sb.Append("(");
if (this.Count > 0)
{
foreach (Parameter p in this)
{
sb.Append(p.ToString(override_unsafe_setting));
sb.Append(", ");
}
sb.Replace(", ", ")", sb.Length - 2, 2);
}
else
sb.Append(")");
cache = sb.ToString();
}
#endregion
#region public string CallString()
public string CallString()
{
if (!Rebuild)
{
return callStringCache;
}
else
{
BuildCache();
return callStringCache;
}
}
#endregion
#region private void BuildCallStringCache()
/// <summary>
/// Builds a call string instance and caches it.
/// </summary>
private void BuildCallStringCache()
{
StringBuilder sb = new StringBuilder();
sb.Append("(");
if (this.Count > 0)
{
foreach (Parameter p in this)
{
if (p.Unchecked)
sb.Append("unchecked((" + p.CurrentType + ")");
if (p.CurrentType != "object")
{
if (p.CurrentType.ToLower().Contains("string"))
{
sb.Append(String.Format("({0}{1})",
p.CurrentType, (p.Array > 0) ? "[]" : ""));
}
else if (p.Pointer || p.Array > 0 || p.Reference)
{
if (((Settings.Compatibility & Settings.Legacy.TurnVoidPointersToIntPtr) != Settings.Legacy.None) &&
p.Pointer && p.CurrentType.Contains("void"))
sb.Append("(IntPtr)");
else
sb.Append(String.Format("({0}*)", p.CurrentType));
}
else
{
sb.Append(String.Format("({0})", p.CurrentType));
}
}
sb.Append(
Utilities.Keywords.Contains(p.Name) ? "@" + p.Name : p.Name
);
if (p.Unchecked)
sb.Append(")");
sb.Append(", ");
}
sb.Replace(", ", ")", sb.Length - 2, 2);
}
else
{
sb.Append(")");
}
callStringCache = sb.ToString();
}
#endregion
public bool ContainsType(string type)
{
foreach (Parameter p in this)
if (p.CurrentType == type)
return true;
return false;
}
}
}