1 files changed, 130 insertions, 0 deletions
diff --git a/src/plugins/qmltooling/qmldbg_inspector/editor/subcomponentmasklayeritem.cpp b/src/plugins/qmltooling/qmldbg_inspector/editor/subcomponentmasklayeritem.cpp
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+++ b/src/plugins/qmltooling/qmldbg_inspector/editor/subcomponentmasklayeritem.cpp
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+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** 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.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "subcomponentmasklayeritem.h"
+
+#include "../qmlinspectorconstants.h"
+#include "../qdeclarativeviewinspector.h"
+
+#include <QtGui/QPolygonF>
+
+namespace QmlJSDebugger {
+
+SubcomponentMaskLayerItem::SubcomponentMaskLayerItem(QDeclarativeViewInspector *inspector,
+                                                     QGraphicsItem *parentItem) :
+    QGraphicsPolygonItem(parentItem),
+    m_inspector(inspector),
+    m_currentItem(0),
+    m_borderRect(new QGraphicsRectItem(this))
+{
+    m_borderRect->setRect(0,0,0,0);
+    m_borderRect->setPen(QPen(QColor(60, 60, 60), 1));
+    m_borderRect->setData(Constants::EditorItemDataKey, QVariant(true));
+
+    setBrush(QBrush(QColor(160,160,160)));
+    setPen(Qt::NoPen);
+}
+
+int SubcomponentMaskLayerItem::type() const
+{
+    return Constants::EditorItemType;
+}
+
+static QRectF resizeRect(const QRectF &newRect, const QRectF &oldRect)
+{
+    QRectF result = newRect;
+    if (oldRect.left() < newRect.left())
+        result.setLeft(oldRect.left());
+
+    if (oldRect.top() < newRect.top())
+        result.setTop(oldRect.top());
+
+    if (oldRect.right() > newRect.right())
+        result.setRight(oldRect.right());
+
+    if (oldRect.bottom() > newRect.bottom())
+        result.setBottom(oldRect.bottom());
+
+    return result;
+}
+
+static QPolygonF regionToPolygon(const QRegion &region)
+{
+    QPainterPath path;
+    foreach (const QRect &rect, region.rects())
+        path.addRect(rect);
+    return path.toFillPolygon();
+}
+
+void SubcomponentMaskLayerItem::setCurrentItem(QGraphicsItem *item)
+{
+    QGraphicsItem *prevItem = m_currentItem;
+    m_currentItem = item;
+
+    if (!m_currentItem)
+        return;
+
+    QRect viewRect = m_inspector->declarativeView()->rect();
+    viewRect = m_inspector->declarativeView()->mapToScene(viewRect).boundingRect().toRect();
+
+    QRectF itemRect = item->boundingRect() | item->childrenBoundingRect();
+    itemRect = item->mapRectToScene(itemRect);
+
+    // if updating the same item as before, resize the rectangle only bigger, not smaller.
+    if (prevItem == item && prevItem != 0) {
+        m_itemPolyRect = resizeRect(itemRect, m_itemPolyRect);
+    } else {
+        m_itemPolyRect = itemRect;
+    }
+    QRectF borderRect = m_itemPolyRect;
+    borderRect.adjust(-1, -1, 1, 1);
+    m_borderRect->setRect(borderRect);
+
+    const QRegion externalRegion = QRegion(viewRect).subtracted(m_itemPolyRect.toRect());
+    setPolygon(regionToPolygon(externalRegion));
+}
+
+QGraphicsItem *SubcomponentMaskLayerItem::currentItem() const
+{
+    return m_currentItem;
+}
+
+} // namespace QmlJSDebugger