Add some of the functionality from the old debugger (e.g. dynamic updating of property values, watch table, colouring of tree widget items).

1 files changed, 183 insertions, 0 deletions

diff --git a/src/declarative/qml/qmlwatcher.cpp b/src/declarative/qml/qmlwatcher.cpp
new file mode 100644
index 0000000..eb00dfe
--- /dev/null
+++ b/src/declarative/qml/qmlwatcher.cpp
@@ -0,0 +1,183 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative module 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtCore/qmetaobject.h>
+#include <QtCore/qdebug.h>
+#include <QtDeclarative/qmlexpression.h>
+#include <QtDeclarative/qmldebugservice.h>
+#include <QtDeclarative/qmlcontext.h>
+#include <QtDeclarative/qml.h>
+
+#include "qmlwatcher_p.h"
+
+QT_BEGIN_NAMESPACE
+
+
+class QmlWatchProxy : public QObject
+{
+    Q_OBJECT
+public:
+    QmlWatchProxy(int id,
+                  QObject *object,
+                  int debugId,
+                  const QMetaProperty &prop,
+                  QmlWatcher *parent = 0);
+
+    QmlWatchProxy(int id,
+                  QmlExpression *exp,
+                  int debugId,
+                  QmlWatcher *parent = 0);
+
+public slots:
+    void notifyValueChanged();
+
+private:
+    friend class QmlWatcher;
+    int m_id;
+    QmlWatcher *m_watch;
+    QObject *m_object;
+    int m_debugId;
+    QMetaProperty m_property;
+
+    QmlExpression *m_expr;
+};
+
+QmlWatchProxy::QmlWatchProxy(int id,
+                             QmlExpression *exp,
+                             int debugId,
+                             QmlWatcher *parent)
+: QObject(parent), m_id(id), m_watch(parent), m_object(0), m_debugId(debugId), m_expr(exp)
+{
+    QObject::connect(m_expr, SIGNAL(valueChanged()), this, SLOT(notifyValueChanged()));
+}
+
+QmlWatchProxy::QmlWatchProxy(int id,
+                             QObject *object,
+                             int debugId,
+                             const QMetaProperty &prop,
+                             QmlWatcher *parent)
+: QObject(parent), m_id(id), m_watch(parent), m_object(object), m_debugId(debugId), m_property(prop), m_expr(0)
+{
+    static int refreshIdx = -1;
+    if(refreshIdx == -1)
+        refreshIdx = QmlWatchProxy::staticMetaObject.indexOfMethod("notifyValueChanged()");
+
+    if (prop.hasNotifySignal())
+        QMetaObject::connect(m_object, prop.notifySignalIndex(), this, refreshIdx);
+}
+
+void QmlWatchProxy::notifyValueChanged()
+{
+    QVariant v;
+    if (m_expr)
+        v = m_expr->value();
+    else
+        v = m_property.read(m_object);
+
+    emit m_watch->propertyChanged(m_id, m_debugId, QByteArray(m_property.name()), v);
+}
+
+
+QmlWatcher::QmlWatcher(QObject *parent)
+    : QObject(parent)
+{
+}
+
+bool QmlWatcher::addWatch(int id, quint32 debugId)
+{
+    QObject *object = QmlDebugService::objectForId(debugId);
+    if (object) {
+        int propCount = object->metaObject()->propertyCount();
+        for (int ii=0; ii<propCount; ii++)
+            addPropertyWatch(id, object, debugId, object->metaObject()->property(ii));
+        return true;
+    }
+    return false;
+}
+
+bool QmlWatcher::addWatch(int id, quint32 debugId, const QByteArray &property)
+{
+    QObject *object = QmlDebugService::objectForId(debugId);
+    if (object) {
+        int index = object->metaObject()->indexOfProperty(property.constData());
+        if (index >= 0) {
+            addPropertyWatch(id, object, debugId, object->metaObject()->property(index));
+            return true;
+        }
+    }
+    return false;
+}
+
+bool QmlWatcher::addWatch(int id, quint32 objectId, const QString &expr)
+{
+    QObject *object = QmlDebugService::objectForId(objectId);
+    QmlContext *context = qmlContext(object);
+    if (context) {
+        QmlExpression *exprObj = new QmlExpression(context, expr, object);
+        QmlWatchProxy *proxy = new QmlWatchProxy(id, exprObj, objectId, this);
+        exprObj->setParent(proxy);
+        m_proxies[id].append(proxy);
+        proxy->notifyValueChanged();
+        return true;
+    }
+    return false;
+}
+
+void QmlWatcher::removeWatch(int id)
+{
+    if (!m_proxies.contains(id))
+        return;
+
+    QList<QPointer<QmlWatchProxy> > proxies = m_proxies.take(id);
+    qDeleteAll(proxies);
+}
+
+void QmlWatcher::addPropertyWatch(int id, QObject *object, quint32 debugId, const QMetaProperty &property)
+{
+    QmlWatchProxy *proxy = new QmlWatchProxy(id, object, debugId, property, this);
+    m_proxies[id].append(proxy);
+
+    proxy->notifyValueChanged();
+}
+
+QT_END_NAMESPACE
+
+#include "qmlwatch.moc"