src/dependencyproperty.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * dependencypropery.cpp:
   4  *
   5  * Copyright 2007-2008 Novell, Inc. (http://www.novell.com)
   6  *
   7  * See the LICENSE file included with the distribution for details.
   8  *
   9  */
  10
  11 #ifndef __DEPENDENCY_PROPERTY_H__
  12 #define __DEPENDENCY_PROPERTY_H__
  13
  14 #include <glib.h>
  15
  16
  17 #include "value.h"
  18 #include "enums.h"
  19 #include "list.h"
  20
  21 class PropertyChangedEventArgs;
  22 class MoonError;
  23
  24 typedef bool ValueValidator (DependencyObject *instance, DependencyProperty *property, Value *value, MoonError *error);
  25 typedef Value* AutoCreator  (DependencyObject *instance, DependencyProperty *property);
  26
  27 /* @CBindingRequisite */
  28 typedef void (* PropertyChangeHandler) (DependencyObject *sender, PropertyChangedEventArgs *args, MoonError *error, gpointer closure);
  29
  30 //
  31 // DependencyProperty
  32 //
  33 /* @IncludeInKinds */
  34 /* @SkipValue */
  35 class DependencyProperty {
  36  public:
  37         DependencyProperty (Type::Kind owner_type, const char *name, Value *default_value, Type::Kind property_type, bool attached, bool readonly, bool always_change, PropertyChangeHandler changed_callback, ValueValidator *validator, AutoCreator *autocreator, bool is_custom);
  38         void Dispose ();
  39         ~DependencyProperty ();
  40
  41         int GetId () { return id; }
  42         void SetId (int value) { id = value; }
  43
  44         /* @GenerateCBinding,GeneratePInvoke */
  45         const char *GetName() { return name; }
  46         const char *GetHashKey ();
  47         Type::Kind GetOwnerType() { return owner_type; }
  48         /* @GenerateCBinding,GeneratePInvoke */
  49         Type::Kind GetPropertyType() { return property_type; }
  50
  51         /* @GenerateCBinding,GeneratePInvoke */
  52         bool IsNullable () { return is_nullable; }
  53         /* @GenerateCBinding,GeneratePInvoke */
  54         void SetIsNullable (bool value) { is_nullable = value; }
  55         /* @GenerateCBinding,GeneratePInvoke */
  56         bool IsReadOnly () { return is_readonly; }
  57         /* @GenerateCBinding,GeneratePInvoke */
  58         bool IsAttached () { return is_attached; }
  59         bool IsAutoCreated () { return autocreator != NULL; }
  60         AutoCreator* GetAutoCreator () { return autocreator; }
  61         bool AlwaysChange () { return always_change; }
  62         bool IsCustom () { return is_custom; }
  63         PropertyChangeHandler GetChangedCallback () { return changed_callback; }
  64
  65         /* @GenerateCBinding,GeneratePInvoke,Version=2.0 */
  66         Value *GetDefaultValue () { return default_value; }
  67
  68         bool Validate (DependencyObject *instance, Value *value, MoonError *error);
  69
  70         /* @GenerateCBinding,GeneratePInvoke,Version=2.0 */
  71         void SetPropertyChangedCallback (PropertyChangeHandler changed_callback);
  72
  73         static int Register (Types *types, Type::Kind type, const char *name, bool is_custom, Value *default_value);
  74         static int Register (Types *types, Type::Kind type, const char *name, bool is_custom, Type::Kind vtype);
  75         static int Register (Types *types, Type::Kind type, const char *name, bool is_custom, Value *default_value, Type::Kind vtype);
  76         static int RegisterFull (Types *types, Type::Kind type, const char *name, bool is_custom, Value *default_value, Type::Kind vtype, bool attached, bool read_only, bool always_change, PropertyChangeHandler changed_callback, ValueValidator *validator,  AutoCreator* autocreator, bool is_nullable);
  77
  78         /* @GenerateCBinding,GeneratePInvoke,Version=2.0 */
  79         static DependencyProperty *RegisterCustomProperty (const char *name, Type::Kind property_type, Type::Kind owner_type, Value *defaultValue, bool attached, bool read_only, PropertyChangeHandler callback);
  80         /* @GenerateCBinding,GeneratePInvoke,Version=2.0 */
  81         static DependencyProperty *RegisterCoreProperty (const char *name, Type::Kind property_type, Type::Kind owner_type, Value *defaultValue, bool attached, bool read_only, PropertyChangeHandler callback);
  82
  83         /* @GenerateCBinding,GeneratePInvoke */
  84         static DependencyProperty *GetDependencyProperty (Type::Kind type, const char *name);
  85         static DependencyProperty *GetDependencyProperty (Type::Kind type, const char *name, bool inherits);
  86         static DependencyProperty *GetDependencyProperty (Type *type, const char *name, bool inherits);
  87
  88         /* @GenerateCBinding,GeneratePInvoke */
  89         static DependencyProperty *GetDependencyPropertyFull (Type::Kind type, const char *name, bool inherits);
  90
  91 private:
  92         int id;
  93
  94         AutoCreator* autocreator; // invoked by AutoCreatePropertyValueProvider to create values
  95         bool is_readonly;
  96         bool is_nullable;
  97         bool is_attached;
  98         bool always_change; // determines if SetValue will do something if the current and new values are equal.
  99         bool is_custom; // If created using managed api
 100
 101         char *hash_key;
 102         char *name;
 103
 104         Value *default_value;
 105         ValueValidator *validator;
 106
 107         Type::Kind owner_type;
 108         Type::Kind property_type;
 109         PropertyChangeHandler changed_callback;
 110 };
 111
 112 G_BEGIN_DECLS
 113
 114 DependencyProperty *resolve_property_path (DependencyObject **o, PropertyPath *propertypath, GHashTable *promoted_values);
 115
 116 G_END_DECLS
 117
 118 #endif /* __DEPENDENCY_PROPERTY_H__ */