--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/designer/src/lib/shared/metadatabase.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,295 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Designer of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "metadatabase_p.h"
+#include "widgetdatabase_p.h"
+
+// sdk
+#include <QtDesigner/QDesignerFormEditorInterface>
+
+// Qt
+#include <QtGui/QWidget>
+#include <QtCore/qalgorithms.h>
+#include <QtCore/qdebug.h>
+
+QT_BEGIN_NAMESPACE
+
+namespace {
+    const bool debugMetaDatabase = false;
+}
+
+namespace qdesigner_internal {
+
+MetaDataBaseItem::MetaDataBaseItem(QObject *object)
+    : m_object(object),
+      m_enabled(true)
+{
+}
+
+MetaDataBaseItem::~MetaDataBaseItem()
+{
+}
+
+QString MetaDataBaseItem::name() const
+{
+    Q_ASSERT(m_object);
+    return m_object->objectName();
+}
+
+void MetaDataBaseItem::setName(const QString &name)
+{
+    Q_ASSERT(m_object);
+    m_object->setObjectName(name);
+}
+
+QString MetaDataBaseItem::customClassName() const
+{
+    return m_customClassName;
+}
+void MetaDataBaseItem::setCustomClassName(const QString &customClassName)
+{
+    m_customClassName = customClassName;
+}
+
+
+MetaDataBaseItem::TabOrder  MetaDataBaseItem::tabOrder() const
+{
+    return m_tabOrder;
+}
+
+void MetaDataBaseItem::setTabOrder(const TabOrder &tabOrder)
+{
+    m_tabOrder = tabOrder;
+}
+
+bool MetaDataBaseItem::enabled() const
+{
+    return m_enabled;
+}
+
+void MetaDataBaseItem::setEnabled(bool b)
+{
+    m_enabled = b;
+}
+
+QString MetaDataBaseItem::script() const
+{
+    return m_script;
+}
+
+void MetaDataBaseItem::setScript(const QString &script)
+{
+    m_script = script;
+}
+
+QStringList MetaDataBaseItem::fakeSlots() const
+{
+    return m_fakeSlots;
+}
+
+void MetaDataBaseItem::setFakeSlots(const QStringList &fs)
+{
+    m_fakeSlots = fs;
+}
+
+QStringList MetaDataBaseItem::fakeSignals() const
+{
+     return m_fakeSignals;
+}
+
+void MetaDataBaseItem::setFakeSignals(const QStringList &fs)
+{
+    m_fakeSignals = fs;
+}
+
+// -----------------------------------------------------
+MetaDataBase::MetaDataBase(QDesignerFormEditorInterface *core, QObject *parent)
+    : QDesignerMetaDataBaseInterface(parent),
+      m_core(core)
+{
+}
+
+MetaDataBase::~MetaDataBase()
+{
+    qDeleteAll(m_items);
+}
+
+MetaDataBaseItem *MetaDataBase::metaDataBaseItem(QObject *object) const
+{
+    MetaDataBaseItem *i = m_items.value(object);
+    if (i == 0 || !i->enabled())
+        return 0;
+    return i;
+}
+
+void MetaDataBase::add(QObject *object)
+{
+    MetaDataBaseItem *item = m_items.value(object);
+    if (item != 0) {
+        item->setEnabled(true);
+        if (debugMetaDatabase) {
+            qDebug() << "MetaDataBase::add: Existing item for " << object->metaObject()->className() << item->name();
+        }
+        return;
+    }
+
+    item = new MetaDataBaseItem(object);
+    m_items.insert(object, item);
+    if (debugMetaDatabase) {
+        qDebug() << "MetaDataBase::add: New item " << object->metaObject()->className() << item->name();
+    }
+    connect(object, SIGNAL(destroyed(QObject*)),
+        this, SLOT(slotDestroyed(QObject*)));
+
+    emit changed();
+}
+
+void MetaDataBase::remove(QObject *object)
+{
+    Q_ASSERT(object);
+
+    if (MetaDataBaseItem *item = m_items.value(object)) {
+        item->setEnabled(false);
+        emit changed();
+    }
+}
+
+QList<QObject*> MetaDataBase::objects() const
+{
+    QList<QObject*> result;
+
+    ItemMap::const_iterator it = m_items.begin();
+    for (; it != m_items.end(); ++it) {
+        if (it.value()->enabled())
+            result.append(it.key());
+    }
+
+    return result;
+}
+
+QDesignerFormEditorInterface *MetaDataBase::core() const
+{
+    return m_core;
+}
+
+void MetaDataBase::slotDestroyed(QObject *object)
+{
+    if (m_items.contains(object)) {
+        MetaDataBaseItem *item = m_items.value(object);
+        delete item;
+        m_items.remove(object);
+    }
+}
+
+// promotion convenience
+QDESIGNER_SHARED_EXPORT bool promoteWidget(QDesignerFormEditorInterface *core,QWidget *widget,const QString &customClassName)
+{
+
+    MetaDataBase *db = qobject_cast<MetaDataBase *>(core->metaDataBase());
+    if (!db)
+        return false;
+    MetaDataBaseItem *item = db->metaDataBaseItem(widget);
+    if (!item) {
+        db ->add(widget);
+        item = db->metaDataBaseItem(widget);
+    }
+    // Recursive promotion occurs if there is a plugin missing.
+    const QString oldCustomClassName = item->customClassName();
+    if (!oldCustomClassName.isEmpty()) {
+        qDebug() << "WARNING: Recursive promotion of " << oldCustomClassName << " to " << customClassName
+            << ". A plugin is missing.";
+    }
+    item->setCustomClassName(customClassName);  
+    if (debugMetaDatabase) {
+        qDebug() << "Promoting " << widget->metaObject()->className() << " to " << customClassName;
+    }
+    return true;
+}
+
+QDESIGNER_SHARED_EXPORT void demoteWidget(QDesignerFormEditorInterface *core,QWidget *widget)
+{
+    MetaDataBase *db = qobject_cast<MetaDataBase *>(core->metaDataBase());
+    if (!db)
+        return;
+    MetaDataBaseItem *item = db->metaDataBaseItem(widget);
+    item->setCustomClassName(QString());
+    if (debugMetaDatabase) {
+        qDebug() << "Demoting " << widget;
+    }
+}
+
+QDESIGNER_SHARED_EXPORT bool isPromoted(QDesignerFormEditorInterface *core, QWidget* widget)
+{
+    const MetaDataBase *db = qobject_cast<const MetaDataBase *>(core->metaDataBase());
+    if (!db)
+        return false;
+    const MetaDataBaseItem *item = db->metaDataBaseItem(widget);
+    if (!item)
+        return false;
+    return !item->customClassName().isEmpty();
+}
+
+QDESIGNER_SHARED_EXPORT QString promotedCustomClassName(QDesignerFormEditorInterface *core, QWidget* widget)
+{
+    const MetaDataBase *db = qobject_cast<const MetaDataBase *>(core->metaDataBase());
+    if (!db)
+        return QString();
+    const MetaDataBaseItem *item = db->metaDataBaseItem(widget);
+    if (!item)
+        return QString();
+    return item->customClassName();
+}
+ 
+QDESIGNER_SHARED_EXPORT QString promotedExtends(QDesignerFormEditorInterface *core, QWidget* widget)
+{
+    const QString customClassName = promotedCustomClassName(core,widget);
+    if (customClassName.isEmpty())
+        return QString();
+    const int i = core->widgetDataBase()->indexOfClassName(customClassName);
+    if (i == -1)
+        return QString();
+    return core->widgetDataBase()->item(i)->extends();
+}
+
+
+} // namespace qdesigner_internal
+
+QT_END_NAMESPACE