src/style.cpp

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
   2 /*
   3  * style.cpp:
   4  *
   5  * Contact:
   6  *   Moonlight List (moonlight-list@lists.ximian.com)
   7  *
   8  * Copyright 2008 Novell, Inc. (http://www.novell.com)
   9  *
  10  * See the LICENSE file included with the distribution for details.
  11  *
  12  */
  13
  14
  15 #include <config.h>
  16 #include "style.h"
  17 #include "error.h"
  18 #include "deployment.h"
  19
  20 //
  21 // Style
  22 //
  23
  24 Style::Style ()
  25 {
  26         SetObjectType (Type::STYLE);
  27 }
  28
  29 Style::~Style ()
  30 {
  31 }
  32
  33 void
  34 Style::Seal ()
  35 {
  36         SetIsSealed (true);
  37         GetSetters ()->Seal ();
  38 }
  39
  40
  41 //
  42 // SetterBaseCollection
  43 //
  44
  45 SetterBaseCollection::SetterBaseCollection ()
  46 {
  47         SetObjectType (Type::SETTERBASE_COLLECTION);
  48 }
  49
  50 void
  51 SetterBaseCollection::Seal ()
  52 {
  53         SetIsSealed (true);
  54         CollectionIterator *iter = GetIterator ();
  55
  56         int error = 0;
  57         Value *current;
  58         Types *types = Deployment::GetCurrent ()->GetTypes ();
  59
  60         while (iter->Next () && (current = iter->GetCurrent (&error))) {
  61                 SetterBase *setter = current->AsSetterBase (types);
  62                 setter->Seal ();
  63         }
  64
  65         delete iter;
  66 }
  67
  68 bool
  69 SetterBaseCollection::AddedToCollection (Value *value, MoonError *error)
  70 {
  71         if (!value || !ValidateSetter (value, error))
  72                 return false;
  73
  74         SetterBase *setter = value->AsSetterBase ();
  75         setter->SetAttached (true);
  76         setter->Seal ();
  77
  78         return DependencyObjectCollection::AddedToCollection (value, error);
  79 }
  80
  81 void
  82 SetterBaseCollection::RemovedFromCollection (Value *value)
  83 {
  84         value->AsSetterBase ()->SetAttached (false);
  85         DependencyObjectCollection::RemovedFromCollection (value);
  86 }
  87
  88 bool
  89 SetterBaseCollection::ValidateSetter (Value *value, MoonError *error)
  90 {
  91         Types *types = Deployment::GetCurrent ()->GetTypes ();
  92
  93         if (types->IsSubclassOf (value->GetKind (), Type::SETTER)) {
  94                 Setter *s = value->AsSetter (types);
  95                 if (!s->GetValue (Setter::PropertyProperty)) {
  96                         MoonError::FillIn (error, MoonError::EXCEPTION, "Cannot have a null target property");
  97                         return false;
  98                 }
  99         }
 100
 101         if (types->IsSubclassOf (value->GetKind (), Type::SETTERBASE)) {
 102                 SetterBase *s = value->AsSetterBase (types);
 103                 if (s->GetAttached ()) {
 104                         MoonError::FillIn (error, MoonError::INVALID_OPERATION, "Setter is currently attached to another style");
 105                         return false;
 106                 }
 107         }
 108
 109         if (GetIsSealed ()) {
 110                 MoonError::FillIn (error, MoonError::EXCEPTION, "Cannot add a setter to a sealed style");
 111                 return false;
 112         }
 113
 114         return true;
 115 }
 116
 117
 118 //
 119 // SetterBase
 120 //
 121
 122 SetterBase::SetterBase ()
 123 {
 124         SetObjectType (Type::SETTERBASE);
 125         attached = false;
 126 }
 127
 128 void
 129 SetterBase::Seal ()
 130 {
 131         if (GetIsSealed ())
 132                 return;
 133         SetIsSealed (true);
 134 }
 135
 136 bool
 137 SetterBase::GetAttached ()
 138 {
 139         return attached;
 140 }
 141
 142 void
 143 SetterBase::SetAttached (bool value)
 144 {
 145         attached = value;
 146 }
 147
 148
 149 //
 150 // Setter
 151 //
 152
 153 Setter::Setter ()
 154 {
 155         SetObjectType (Type::SETTER);
 156 }
 157
 158 Setter::~Setter ()
 159 {
 160 }