mirror of
https://github.com/Ryujinx/GtkSharp.git
synced 2024-09-09 00:13:20 +02:00
4d19e5ac2a
In a lot of places, we were only checking the presence of boolean attributes, like "array", automatically assuming they were true. This meant that we didn't allow setting them explicitly to false, which apparently is needed for some bindings. For all boolean attributes, we now use the GetAttributeAsBoolean method added in the previous commit, to correctly check the value of the attribute. As before, if the attribute is not present, it is considered to be false. Thanks to Stephan Sundermann for noticing this issue.
364 lines
12 KiB
C#
364 lines
12 KiB
C#
// GtkSharp.Generation.InterfaceGen.cs - The Interface Generatable.
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//
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// Author: Mike Kestner <mkestner@speakeasy.net>
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//
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// Copyright (c) 2001-2003 Mike Kestner
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// Copyright (c) 2004, 2007 Novell, Inc.
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of version 2 of the GNU General Public
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// License as published by the Free Software Foundation.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// You should have received a copy of the GNU General Public
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// License along with this program; if not, write to the
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// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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// Boston, MA 02111-1307, USA.
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namespace GtkSharp.Generation {
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using System;
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using System.Collections;
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using System.IO;
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using System.Xml;
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public class InterfaceGen : ObjectBase {
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bool consume_only;
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public InterfaceGen (XmlElement ns, XmlElement elem) : base (ns, elem, true)
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{
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consume_only = elem.GetAttributeAsBoolean ("consume_only");
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foreach (XmlNode node in elem.ChildNodes) {
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if (!(node is XmlElement)) continue;
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XmlElement member = (XmlElement) node;
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switch (member.Name) {
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case "signal":
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object sig = sigs [member.GetAttribute ("name")];
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if (sig == null)
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sig = new Signal (node as XmlElement, this);
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break;
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default:
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if (!base.IsNodeNameHandled (node.Name))
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new LogWriter (QualifiedName).Warn ("Unexpected node " + node.Name);
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break;
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}
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}
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}
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public bool IsConsumeOnly {
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get {
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return consume_only;
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}
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}
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public override string CallByName (string var, bool owned)
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{
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return String.Format ("{0} == null ? IntPtr.Zero : (({0} is GLib.Object) ? ({0} as GLib.Object).{1} : ({0} as {2}Adapter).{1})", var, owned ? "OwnedHandle" : "Handle", QualifiedName);
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}
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public override string FromNative (string var, bool owned)
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{
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return QualifiedName + "Adapter.GetObject (" + var + ", " + (owned ? "true" : "false") + ")";
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}
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public override bool ValidateForSubclass ()
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{
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if (!base.ValidateForSubclass ())
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return false;
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LogWriter log = new LogWriter (QualifiedName);
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ArrayList invalids = new ArrayList ();
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foreach (Method method in methods.Values) {
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if (!method.Validate (log))
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invalids.Add (method);
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}
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foreach (Method method in invalids)
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methods.Remove (method.Name);
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invalids.Clear ();
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return true;
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}
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void GenerateStaticCtor (StreamWriter sw)
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{
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sw.WriteLine ("\t\tstatic {0} iface;", class_struct_name);
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sw.WriteLine ();
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sw.WriteLine ("\t\tstatic " + Name + "Adapter ()");
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sw.WriteLine ("\t\t{");
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sw.WriteLine ("\t\t\tGLib.GType.Register (_gtype, typeof({0}Adapter));", Name);
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foreach (InterfaceVM vm in interface_vms) {
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if (vm.Validate (new LogWriter (QualifiedName)))
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sw.WriteLine ("\t\t\tiface.{0} = new {0}NativeDelegate ({0}_cb);", vm.Name);
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}
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sw.WriteLine ("\t\t}");
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sw.WriteLine ();
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}
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void GenerateInitialize (StreamWriter sw)
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{
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sw.WriteLine ("\t\tstatic int class_offset = 2 * IntPtr.Size;"); // Class size of GTypeInterface struct
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sw.WriteLine ();
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sw.WriteLine ("\t\tstatic void Initialize (IntPtr ptr, IntPtr data)");
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sw.WriteLine ("\t\t{");
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if (interface_vms.Count > 0) {
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sw.WriteLine ("\t\t\tIntPtr ifaceptr = new IntPtr (ptr.ToInt64 () + class_offset);");
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sw.WriteLine ("\t\t\t{0} native_iface = ({0}) Marshal.PtrToStructure (ifaceptr, typeof ({0}));", class_struct_name);
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foreach (InterfaceVM vm in interface_vms) {
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sw.WriteLine ("\t\t\tnative_iface." + vm.Name + " = iface." + vm.Name + ";");
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}
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sw.WriteLine ("\t\t\tMarshal.StructureToPtr (native_iface, ifaceptr, false);");
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sw.WriteLine ("\t\t\tGCHandle gch = (GCHandle) data;");
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sw.WriteLine ("\t\t\tgch.Free ();");
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}
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foreach (Property prop in props.Values) {
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sw.WriteLine ("\t\t\tGLib.Object.OverrideProperty (data, \"" + prop.CName + "\");");
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}
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sw.WriteLine ("\t\t}");
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sw.WriteLine ();
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}
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void GenerateCallbacks (StreamWriter sw)
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{
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foreach (InterfaceVM vm in interface_vms) {
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vm.GenerateCallback (sw, null);
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}
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}
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void GenerateCtors (StreamWriter sw)
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{
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// Native GObjects do not implement the *Implementor interfaces
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sw.WriteLine ("\t\tGLib.Object implementor;", Name);
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sw.WriteLine ();
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if (!IsConsumeOnly) {
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sw.WriteLine ("\t\tpublic " + Name + "Adapter ()");
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sw.WriteLine ("\t\t{");
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sw.WriteLine ("\t\t\tInitHandler = new GLib.GInterfaceInitHandler (Initialize);");
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sw.WriteLine ("\t\t}");
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sw.WriteLine ();
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sw.WriteLine ("\t\tpublic {0}Adapter ({0}Implementor implementor)", Name);
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sw.WriteLine ("\t\t{");
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sw.WriteLine ("\t\t\tif (implementor == null)");
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sw.WriteLine ("\t\t\t\tthrow new ArgumentNullException (\"implementor\");");
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sw.WriteLine ("\t\t\telse if (!(implementor is GLib.Object))");
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sw.WriteLine ("\t\t\t\tthrow new ArgumentException (\"implementor must be a subclass of GLib.Object\");");
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sw.WriteLine ("\t\t\tthis.implementor = implementor as GLib.Object;");
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sw.WriteLine ("\t\t}");
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sw.WriteLine ();
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}
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sw.WriteLine ("\t\tpublic " + Name + "Adapter (IntPtr handle)");
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sw.WriteLine ("\t\t{");
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sw.WriteLine ("\t\t\tif (!_gtype.IsInstance (handle))");
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sw.WriteLine ("\t\t\t\tthrow new ArgumentException (\"The gobject doesn't implement the GInterface of this adapter\", \"handle\");");
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sw.WriteLine ("\t\t\timplementor = GLib.Object.GetObject (handle);");
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sw.WriteLine ("\t\t}");
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sw.WriteLine ();
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}
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void GenerateGType (StreamWriter sw)
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{
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Method m = GetMethod ("GetType");
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if (m == null)
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throw new Exception ("Interface " + QualifiedName + " missing GetType method.");
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m.GenerateImport (sw);
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sw.WriteLine ("\t\tprivate static GLib.GType _gtype = new GLib.GType ({0} ());", m.CName);
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sw.WriteLine ();
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sw.WriteLine ("\t\tpublic override GLib.GType GType {");
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sw.WriteLine ("\t\t\tget {");
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sw.WriteLine ("\t\t\t\treturn _gtype;");
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sw.WriteLine ("\t\t\t}");
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sw.WriteLine ("\t\t}");
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sw.WriteLine ();
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}
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void GenerateHandleProp (StreamWriter sw)
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{
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sw.WriteLine ("\t\tpublic override IntPtr Handle {");
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sw.WriteLine ("\t\t\tget {");
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sw.WriteLine ("\t\t\t\treturn implementor.Handle;");
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sw.WriteLine ("\t\t\t}");
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sw.WriteLine ("\t\t}");
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sw.WriteLine ();
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sw.WriteLine ("\t\tpublic IntPtr OwnedHandle {");
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sw.WriteLine ("\t\t\tget {");
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sw.WriteLine ("\t\t\t\treturn implementor.OwnedHandle;");
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sw.WriteLine ("\t\t\t}");
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sw.WriteLine ("\t\t}");
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sw.WriteLine ();
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}
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void GenerateGetObject (StreamWriter sw)
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{
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sw.WriteLine ("\t\tpublic static " + Name + " GetObject (IntPtr handle, bool owned)");
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sw.WriteLine ("\t\t{");
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sw.WriteLine ("\t\t\tGLib.Object obj = GLib.Object.GetObject (handle, owned);");
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sw.WriteLine ("\t\t\treturn GetObject (obj);");
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sw.WriteLine ("\t\t}");
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sw.WriteLine ();
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sw.WriteLine ("\t\tpublic static " + Name + " GetObject (GLib.Object obj)");
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sw.WriteLine ("\t\t{");
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sw.WriteLine ("\t\t\tif (obj == null)");
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sw.WriteLine ("\t\t\t\treturn null;");
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if (!IsConsumeOnly) {
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sw.WriteLine ("\t\t\telse if (obj is " + Name + "Implementor)");
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sw.WriteLine ("\t\t\t\treturn new {0}Adapter (obj as {0}Implementor);", Name);
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}
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sw.WriteLine ("\t\t\telse if (obj as " + Name + " == null)");
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sw.WriteLine ("\t\t\t\treturn new {0}Adapter (obj.Handle);", Name);
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sw.WriteLine ("\t\t\telse");
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sw.WriteLine ("\t\t\t\treturn obj as {0};", Name);
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sw.WriteLine ("\t\t}");
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sw.WriteLine ();
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}
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void GenerateImplementorProp (StreamWriter sw)
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{
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sw.WriteLine ("\t\tpublic " + Name + "Implementor Implementor {");
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sw.WriteLine ("\t\t\tget {");
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sw.WriteLine ("\t\t\t\treturn implementor as {0}Implementor;", Name);
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sw.WriteLine ("\t\t\t}");
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sw.WriteLine ("\t\t}");
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sw.WriteLine ();
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}
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void GenerateAdapter (GenerationInfo gen_info)
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{
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StreamWriter sw = gen_info.Writer = gen_info.OpenStream (Name + "Adapter");
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sw.WriteLine ("namespace " + NS + " {");
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sw.WriteLine ();
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sw.WriteLine ("\tusing System;");
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sw.WriteLine ("\tusing System.Runtime.InteropServices;");
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sw.WriteLine ();
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sw.WriteLine ("#region Autogenerated code");
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sw.WriteLine ("\tpublic partial class " + Name + "Adapter : GLib.GInterfaceAdapter, " + QualifiedName + " {");
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sw.WriteLine ();
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if (!IsConsumeOnly) {
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GenerateClassStruct (gen_info);
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GenerateStaticCtor (sw);
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GenerateCallbacks (sw);
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GenerateInitialize (sw);
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}
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GenerateCtors (sw);
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GenerateGType (sw);
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GenerateHandleProp (sw);
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GenerateGetObject (sw);
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if (!IsConsumeOnly)
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GenerateImplementorProp (sw);
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GenProperties (gen_info, null);
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foreach (Signal sig in sigs.Values)
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sig.GenEvent (sw, null, "GLib.Object.GetObject (Handle)");
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Method temp = methods ["GetType"] as Method;
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if (temp != null)
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methods.Remove ("GetType");
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GenMethods (gen_info, new Hashtable (), this);
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if (temp != null)
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methods ["GetType"] = temp;
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sw.WriteLine ("#endregion");
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sw.WriteLine ("\t}");
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sw.WriteLine ("}");
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sw.Close ();
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gen_info.Writer = null;
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}
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void GenerateImplementorIface (GenerationInfo gen_info)
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{
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if (IsConsumeOnly)
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return;
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StreamWriter sw = gen_info.Writer;
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sw.WriteLine ();
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sw.WriteLine ("\t[GLib.GInterface (typeof (" + Name + "Adapter))]");
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string access = IsInternal ? "internal" : "public";
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sw.WriteLine ("\t" + access + " partial interface " + Name + "Implementor : GLib.IWrapper {");
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sw.WriteLine ();
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Hashtable vm_table = new Hashtable ();
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foreach (InterfaceVM vm in interface_vms) {
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vm_table [vm.Name] = vm;
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}
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foreach (InterfaceVM vm in interface_vms) {
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if (vm_table [vm.Name] == null)
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continue;
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else if (!vm.Validate (new LogWriter (QualifiedName))) {
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vm_table.Remove (vm.Name);
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continue;
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} else if (vm.IsGetter || vm.IsSetter) {
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string cmp_name = (vm.IsGetter ? "Set" : "Get") + vm.Name.Substring (3);
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InterfaceVM cmp = vm_table [cmp_name] as InterfaceVM;
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if (cmp != null && (cmp.IsGetter || cmp.IsSetter)) {
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if (vm.IsSetter)
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cmp.GenerateDeclaration (sw, vm);
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else
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vm.GenerateDeclaration (sw, cmp);
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vm_table.Remove (cmp.Name);
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} else
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vm.GenerateDeclaration (sw, null);
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vm_table.Remove (vm.Name);
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} else {
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vm.GenerateDeclaration (sw, null);
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vm_table.Remove (vm.Name);
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}
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}
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foreach (Property prop in props.Values) {
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sw.WriteLine ("\t\t[GLib.Property (\"" + prop.CName + "\")]");
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prop.GenerateDecl (sw, "\t\t");
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}
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sw.WriteLine ("\t}");
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}
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public override void Generate (GenerationInfo gen_info)
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{
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GenerateAdapter (gen_info);
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StreamWriter sw = gen_info.Writer = gen_info.OpenStream (Name);
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sw.WriteLine ("namespace " + NS + " {");
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sw.WriteLine ();
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sw.WriteLine ("\tusing System;");
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sw.WriteLine ();
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sw.WriteLine ("#region Autogenerated code");
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string access = IsInternal ? "internal" : "public";
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sw.WriteLine ("\t" + access + " partial interface " + Name + " : GLib.IWrapper {");
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sw.WriteLine ();
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foreach (Signal sig in sigs.Values) {
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sig.GenerateDecl (sw);
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sig.GenEventHandler (gen_info);
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}
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foreach (Method method in methods.Values) {
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if (IgnoreMethod (method, this))
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continue;
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method.GenerateDecl (sw);
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}
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foreach (Property prop in props.Values)
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prop.GenerateDecl (sw, "\t\t");
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sw.WriteLine ("\t}");
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GenerateImplementorIface (gen_info);
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sw.WriteLine ("#endregion");
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sw.WriteLine ("}");
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sw.Close ();
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gen_info.Writer = null;
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Statistics.IFaceCount++;
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}
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}
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}
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