1 /****************************************************************************
3 ** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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5 ** Contact: Nokia Corporation (qt-info@nokia.com)
7 ** This file is part of the QtDeclarative module of the Qt Toolkit.
9 ** $QT_BEGIN_LICENSE:LGPL$
10 ** GNU Lesser General Public License Usage
11 ** This file may be used under the terms of the GNU Lesser General Public
12 ** License version 2.1 as published by the Free Software Foundation and
13 ** appearing in the file LICENSE.LGPL included in the packaging of this
14 ** file. Please review the following information to ensure the GNU Lesser
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18 ** In addition, as a special exception, Nokia gives you certain additional
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20 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
22 ** GNU General Public License Usage
23 ** Alternatively, this file may be used under the terms of the GNU General
24 ** Public License version 3.0 as published by the Free Software Foundation
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26 ** file. Please review the following information to ensure the GNU General
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40 ****************************************************************************/
42 #include "subcomponentmasklayeritem.h"
44 #include "qmlinspectorconstants.h"
45 #include "qdeclarativeviewinspector.h"
47 #include <QtGui/QPolygonF>
49 namespace QmlJSDebugger {
52 SubcomponentMaskLayerItem::SubcomponentMaskLayerItem(QDeclarativeViewInspector *inspector,
53 QGraphicsItem *parentItem) :
54 QGraphicsPolygonItem(parentItem),
55 m_inspector(inspector),
57 m_borderRect(new QGraphicsRectItem(this))
59 m_borderRect->setRect(0,0,0,0);
60 m_borderRect->setPen(QPen(QColor(60, 60, 60), 1));
61 m_borderRect->setData(Constants::EditorItemDataKey, QVariant(true));
63 setBrush(QBrush(QColor(160,160,160)));
67 int SubcomponentMaskLayerItem::type() const
69 return Constants::EditorItemType;
72 static QRectF resizeRect(const QRectF &newRect, const QRectF &oldRect)
74 QRectF result = newRect;
75 if (oldRect.left() < newRect.left())
76 result.setLeft(oldRect.left());
78 if (oldRect.top() < newRect.top())
79 result.setTop(oldRect.top());
81 if (oldRect.right() > newRect.right())
82 result.setRight(oldRect.right());
84 if (oldRect.bottom() > newRect.bottom())
85 result.setBottom(oldRect.bottom());
90 static QPolygonF regionToPolygon(const QRegion ®ion)
93 foreach (const QRect &rect, region.rects())
95 return path.toFillPolygon();
98 void SubcomponentMaskLayerItem::setCurrentItem(QGraphicsItem *item)
100 QGraphicsItem *prevItem = m_currentItem;
101 m_currentItem = item;
106 QRect viewRect = m_inspector->declarativeView()->rect();
107 viewRect = m_inspector->declarativeView()->mapToScene(viewRect).boundingRect().toRect();
109 QRectF itemRect = item->boundingRect() | item->childrenBoundingRect();
110 itemRect = item->mapRectToScene(itemRect);
112 // if updating the same item as before, resize the rectangle only bigger, not smaller.
113 if (prevItem == item && prevItem != 0) {
114 m_itemPolyRect = resizeRect(itemRect, m_itemPolyRect);
116 m_itemPolyRect = itemRect;
118 QRectF borderRect = m_itemPolyRect;
119 borderRect.adjust(-1, -1, 1, 1);
120 m_borderRect->setRect(borderRect);
122 const QRegion externalRegion = QRegion(viewRect).subtracted(m_itemPolyRect.toRect());
123 setPolygon(regionToPolygon(externalRegion));
126 QGraphicsItem *SubcomponentMaskLayerItem::currentItem() const
128 return m_currentItem;
131 } // namespace QtQuick1
132 } // namespace QmlJSDebugger