414a14d93e
* glib/UnwrappedObject.cs: New class which holds an IntPtr. This is used in Value so that we can retrieve the IntPtr itself for an object property. * glib/Value.cs: Add UnwrappedObject cast operator. * glib/Property.cs: If the retrieved value is an object, and there is no wrapper object, create a new one. svn path=/trunk/gtk-sharp/; revision=5440
472 lines
11 KiB
C#
Executable file
472 lines
11 KiB
C#
Executable file
// GLib.Value.cs - GLib Value class implementation
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//
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// Author: Mike Kestner <mkestner@speakeasy.net>
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//
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// (c) 2001 Mike Kestner
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namespace GLib {
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using System;
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using System.Runtime.InteropServices;
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/// <summary>
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/// Value Class
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/// </summary>
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///
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/// <remarks>
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/// An arbitrary data type similar to a CORBA Any which is used
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/// to get and set properties on Objects.
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/// </remarks>
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public class Value {
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IntPtr _val;
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// Destructor is required since we are allocating unmanaged
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// heap resources.
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[DllImport("glib-2.0")]
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static extern void g_free (IntPtr mem);
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~Value ()
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{
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g_free (_val);
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}
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// import the glue function to allocate values on heap
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[DllImport("gtksharpglue")]
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static extern IntPtr gtksharp_value_create(TypeFundamentals type);
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[DllImport("gtksharpglue")]
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static extern IntPtr gtksharp_value_create_from_property(IntPtr obj, string name);
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// Constructor to wrap a raw GValue ref. We need the dummy param
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// to distinguish this ctor from the TypePointer ctor.
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public Value (IntPtr val, IntPtr dummy)
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{
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_val = val;
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}
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/// <summary>
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/// Value Constructor
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/// </summary>
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///
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/// <remarks>
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/// Constructs a Value corresponding to the type of the
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/// specified property.
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/// </remarks>
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public Value (IntPtr obj, string prop_name)
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{
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_val = gtksharp_value_create_from_property (obj, prop_name);
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}
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[DllImport("gobject-2.0")]
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static extern void g_value_set_boolean (IntPtr val,
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bool data);
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/// <summary>
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/// Value Constructor
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/// </summary>
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///
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/// <remarks>
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/// Constructs a Value from a specified boolean.
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/// </remarks>
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public Value (bool val)
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{
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_val = gtksharp_value_create(TypeFundamentals.TypeBoolean);
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g_value_set_boolean (_val, val);
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}
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[DllImport("gobject-2.0")]
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static extern void g_value_set_boxed (IntPtr val, IntPtr data);
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/// <summary>
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/// Value Constructor
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/// </summary>
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///
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/// <remarks>
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/// Constructs a Value from a specified boxed type.
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/// </remarks>
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public Value (GLib.Boxed val)
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{
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_val = gtksharp_value_create(TypeFundamentals.TypeBoxed);
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g_value_set_boxed (_val, val.Handle);
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}
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[DllImport("gobject-2.0")]
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static extern void g_value_set_double (IntPtr val, double data);
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/// <summary>
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/// Value Constructor
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/// </summary>
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///
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/// <remarks>
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/// Constructs a Value from a specified double.
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/// </remarks>
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public Value (double val)
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{
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_val = gtksharp_value_create (TypeFundamentals.TypeDouble);
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g_value_set_double (_val, val);
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}
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[DllImport("gobject-2.0")]
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static extern void g_value_set_float (IntPtr val, float data);
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/// <summary>
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/// Value Constructor
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/// </summary>
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///
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/// <remarks>
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/// Constructs a Value from a specified float.
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/// </remarks>
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public Value (float val)
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{
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_val = gtksharp_value_create (TypeFundamentals.TypeFloat);
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g_value_set_float (_val, val);
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}
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[DllImport("gobject-2.0")]
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static extern void g_value_set_int (IntPtr val, int data);
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/// <summary>
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/// Value Constructor
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/// </summary>
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///
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/// <remarks>
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/// Constructs a Value from a specified integer.
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/// </remarks>
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public Value (int val)
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{
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_val = gtksharp_value_create (TypeFundamentals.TypeInt);
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g_value_set_int (_val, val);
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}
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[DllImport("gobject-2.0")]
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static extern void g_value_set_object (IntPtr val, IntPtr data);
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/// <summary>
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/// Value Constructor
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/// </summary>
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///
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/// <remarks>
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/// Constructs a Value from a specified object.
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/// </remarks>
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public Value (GLib.Object val)
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{
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_val = gtksharp_value_create (TypeFundamentals.TypeObject);
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g_value_set_object (_val, val.Handle);
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}
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[DllImport("gobject-2.0")]
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static extern void g_value_set_pointer (IntPtr val, IntPtr data);
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/// <summary>
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/// Value Constructor
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/// </summary>
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///
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/// <remarks>
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/// Constructs a Value from a specified pointer.
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/// </remarks>
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public Value (IntPtr val)
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{
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_val = gtksharp_value_create (TypeFundamentals.TypePointer);
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g_value_set_pointer (_val, val);
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}
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[DllImport("gobject-2.0")]
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static extern void g_value_set_string (IntPtr val, string data);
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/// <summary>
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/// Value Constructor
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/// </summary>
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///
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/// <remarks>
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/// Constructs a Value from a specified string.
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/// </remarks>
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public Value (string val)
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{
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_val = gtksharp_value_create (TypeFundamentals.TypeString);
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g_value_set_string (_val, val);
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}
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[DllImport("gobject-2.0")]
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static extern void g_value_set_uint (IntPtr val, uint data);
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/// <summary>
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/// Value Constructor
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/// </summary>
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///
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/// <remarks>
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/// Constructs a Value from a specified uint.
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/// </remarks>
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public Value (uint val)
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{
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_val = gtksharp_value_create (TypeFundamentals.TypeUInt);
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g_value_set_uint (_val, val);
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}
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[DllImport("gobject-2.0")]
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static extern void g_value_set_enum (IntPtr val, int data);
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/// <summary>
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/// Value Constructor
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/// </summary>
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///
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/// <remarks>
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/// Constructs a Value from a specified enum wrapper.
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/// </remarks>
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public Value (IntPtr obj, string prop_name, EnumWrapper wrap)
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{
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_val = gtksharp_value_create_from_property (obj, prop_name);
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g_value_set_enum (_val, (int) wrap);
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}
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[DllImport("gobject-2.0")]
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static extern bool g_value_get_boolean (IntPtr val);
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/// <summary>
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/// Value to Boolean Conversion
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/// </summary>
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///
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/// <remarks>
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/// Extracts a bool from a Value. Note, this method
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/// will produce an exception if the Value does not hold a
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/// boolean value.
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/// </remarks>
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public static explicit operator bool (Value val)
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{
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// FIXME: Insert an appropriate exception here if
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// _val.type indicates an error.
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return g_value_get_boolean (val._val);
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}
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[DllImport("gobject-2.0")]
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static extern IntPtr g_value_get_boxed (IntPtr val);
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/// <summary>
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/// Value to Boxed Conversion
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/// </summary>
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///
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/// <remarks>
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/// Extracts a boxed type from a Value. Note, this method
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/// will produce an exception if the Value does not hold a
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/// boxed type value.
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/// </remarks>
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public static explicit operator GLib.Boxed (Value val)
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{
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// FIXME: Insert an appropriate exception here if
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// _val.type indicates an error.
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// FIXME: Figure out how to wrap this boxed type
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return null;
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}
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[DllImport("gobject-2.0")]
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static extern double g_value_get_double (IntPtr val);
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/// <summary>
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/// Value to Double Conversion
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/// </summary>
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///
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/// <remarks>
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/// Extracts a double from a Value. Note, this method
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/// will produce an exception if the Value does not hold a
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/// double value.
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/// </remarks>
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public static explicit operator double (Value val)
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{
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// FIXME: Insert an appropriate exception here if
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// _val.type indicates an error.
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return g_value_get_double (val._val);
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}
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[DllImport("gobject-2.0")]
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static extern float g_value_get_float (IntPtr val);
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/// <summary>
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/// Value to Float Conversion
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/// </summary>
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///
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/// <remarks>
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/// Extracts a float from a Value. Note, this method
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/// will produce an exception if the Value does not hold a
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/// float value.
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/// </remarks>
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public static explicit operator float (Value val)
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{
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// FIXME: Insert an appropriate exception here if
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// _val.type indicates an error.
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return g_value_get_float (val._val);
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}
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[DllImport("gobject-2.0")]
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static extern int g_value_get_int (IntPtr val);
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/// <summary>
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/// Value to Integer Conversion
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/// </summary>
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///
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/// <remarks>
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/// Extracts an int from a Value. Note, this method
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/// will produce an exception if the Value does not hold a
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/// integer value.
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/// </remarks>
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public static explicit operator int (Value val)
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{
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// FIXME: Insert an appropriate exception here if
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// _val.type indicates an error.
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return g_value_get_int (val._val);
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}
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[DllImport("gobject-2.0")]
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static extern IntPtr g_value_get_object (IntPtr val);
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/// <summary>
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/// Value to Object Conversion
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/// </summary>
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///
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/// <remarks>
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/// Extracts an object from a Value. Note, this method
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/// will produce an exception if the Value does not hold a
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/// object value.
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/// </remarks>
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public static explicit operator GLib.Object (Value val)
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{
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// FIXME: Insert an appropriate exception here if
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// _val.type indicates an error.
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return GLib.Object.GetObject(g_value_get_object (val._val));
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}
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/// <summary>
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/// Value to Unresolved Object Conversion
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/// </summary>
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///
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/// <remarks>
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/// Extracts an object from a Value without looking up its wrapping
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/// class.
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/// Note, this method will produce an exception if the Value does
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/// not hold a object value.
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/// </remarks>
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public static explicit operator GLib.UnwrappedObject (Value val)
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{
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// FIXME: Insert an appropriate exception here if
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// _val.type indicates an error.
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return new UnwrappedObject(g_value_get_object (val._val));
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}
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[DllImport("gobject-2.0")]
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static extern IntPtr g_value_get_pointer (IntPtr val);
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/// <summary>
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/// Value to Pointer Conversion
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/// </summary>
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///
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/// <remarks>
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/// Extracts a pointer from a Value. Note, this method
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/// will produce an exception if the Value does not hold a
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/// pointer value.
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/// </remarks>
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public static explicit operator IntPtr (Value val)
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{
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// FIXME: Insert an appropriate exception here if
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// _val.type indicates an error.
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return g_value_get_pointer (val._val);
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}
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[DllImport("gobject-2.0")]
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static extern string g_value_get_string (IntPtr val);
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/// <summary>
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/// Value to String Conversion
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/// </summary>
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///
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/// <remarks>
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/// Extracts a string from a Value. Note, this method
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/// will produce an exception if the Value does not hold a
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/// string value.
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/// </remarks>
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public static explicit operator String (Value val)
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{
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// FIXME: Insert an appropriate exception here if
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// _val.type indicates an error.
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return g_value_get_string (val._val);
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}
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[DllImport("gobject-2.0")]
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static extern uint g_value_get_uint (IntPtr val);
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/// <summary>
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/// Value to Unsigned Integer Conversion
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/// </summary>
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///
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/// <remarks>
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/// Extracts an uint from a Value. Note, this method
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/// will produce an exception if the Value does not hold a
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/// unsigned integer value.
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/// </remarks>
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public static explicit operator uint (Value val)
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{
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// FIXME: Insert an appropriate exception here if
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// _val.type indicates an error.
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return g_value_get_uint (val._val);
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}
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[DllImport("gobject-2.0")]
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static extern int g_value_get_enum (IntPtr val);
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/// <summary>
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/// Value to Enum Conversion
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/// </summary>
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///
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/// <remarks>
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/// Extracts an enum from a Value. Note, this method
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/// will produce an exception if the Value does not hold an
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/// enum value.
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/// </remarks>
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public static explicit operator EnumWrapper (Value val)
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{
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// FIXME: Insert an appropriate exception here if
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// _val.type indicates an error.
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return new EnumWrapper (g_value_get_enum (val._val));
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}
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/// <summary>
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/// Handle Property
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/// </summary>
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///
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/// <remarks>
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/// Read only. Accesses a pointer to the raw GValue.
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/// </remarks>
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public IntPtr Handle {
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get {
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return _val;
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}
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}
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}
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}
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