try to use python.net as the bridge.

2025-12-16 19:57:57 +01:00 · 2014-01-11 00:19:14 +08:00
parent 935d26f956
commit 76009ca6eb
78 changed files with 14592 additions and 81 deletions
--- a/Pythonnet.Runtime/eventbinding.cs
+++ b/Pythonnet.Runtime/eventbinding.cs
@@ -0,0 +1,132 @@
+// ==========================================================================
+// This software is subject to the provisions of the Zope Public License,
+// Version 2.0 (ZPL).  A copy of the ZPL should accompany this distribution.
+// THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+// WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+// WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+// FOR A PARTICULAR PURPOSE.
+// ==========================================================================
+
+using System;
+
+namespace Python.Runtime {
+
+    //========================================================================
+    // Implements a Python event binding type, similar to a method binding.
+    //========================================================================
+
+    internal class EventBinding : ExtensionType {
+
+        EventObject e;
+        IntPtr target;
+
+        public EventBinding(EventObject e, IntPtr target) : base() {
+            Runtime.Incref(target);
+            this.target = target;
+            this.e = e;
+        }
+
+
+        //====================================================================
+        // EventBinding += operator implementation.
+        //====================================================================
+
+        public static IntPtr nb_inplace_add(IntPtr ob, IntPtr arg) {
+            EventBinding self = (EventBinding)GetManagedObject(ob);
+
+            if (Runtime.PyCallable_Check(arg) < 1) {
+                Exceptions.SetError(Exceptions.TypeError, 
+                                    "event handlers must be callable"
+                                    );
+                return IntPtr.Zero;
+            }
+
+            if(!self.e.AddEventHandler(self.target, arg)) {
+                return IntPtr.Zero;
+            }
+
+            Runtime.Incref(self.pyHandle);
+            return self.pyHandle;
+        }
+
+
+        //====================================================================
+        // EventBinding -= operator implementation.
+        //====================================================================
+
+        public static IntPtr nb_inplace_subtract(IntPtr ob, IntPtr arg) {
+            EventBinding self = (EventBinding)GetManagedObject(ob);
+
+            if (Runtime.PyCallable_Check(arg) < 1) {
+                Exceptions.SetError(Exceptions.TypeError, 
+                                    "invalid event handler"
+                                    );
+                return IntPtr.Zero;
+            }
+
+            if (!self.e.RemoveEventHandler(self.target, arg)) {
+                return IntPtr.Zero;
+            }
+
+            Runtime.Incref(self.pyHandle);
+            return self.pyHandle;
+        }
+
+
+        //====================================================================
+        // EventBinding  __hash__ implementation.
+        //====================================================================
+
+        public static IntPtr tp_hash(IntPtr ob) {
+            EventBinding self = (EventBinding)GetManagedObject(ob);
+            long x = 0;
+            long y = 0;
+
+            if (self.target != IntPtr.Zero) {
+                x = Runtime.PyObject_Hash(self.target).ToInt64();
+                if (x == -1) {
+                    return new IntPtr(-1);
+                }
+            }
+ 
+            y = Runtime.PyObject_Hash(self.e.pyHandle).ToInt64();
+            if (y == -1) {
+                return new IntPtr(-1);
+            }
+
+            x ^= y;
+
+            if (x == -1) {
+                x = -1;
+            }
+
+            return new IntPtr(x);
+        }
+
+
+        //====================================================================
+        // EventBinding __repr__ implementation.
+        //====================================================================
+
+        public static IntPtr tp_repr(IntPtr ob) {
+            EventBinding self = (EventBinding)GetManagedObject(ob);
+            string type = (self.target == IntPtr.Zero) ? "unbound" : "bound";
+            string s = String.Format("<{0} event '{1}'>", type, self.e.name);
+            return Runtime.PyString_FromString(s);
+        }
+
+
+        //====================================================================
+        // EventBinding dealloc implementation.
+        //====================================================================
+
+        public static new void tp_dealloc(IntPtr ob) {
+            EventBinding self = (EventBinding)GetManagedObject(ob);
+            Runtime.Decref(self.target);
+            ExtensionType.FinalizeObject(self);
+        }
+
+    }
+
+
+}