forked from qt-creator/qt-creator
		
	Change-Id: Ibdf07c4a35b40f3fc78300a1675270f8295bec42 Reviewed-by: Thomas Hartmann <Thomas.Hartmann@digia.com>
		
			
				
	
	
		
			690 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			690 lines
		
	
	
		
			19 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| /****************************************************************************
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| **
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| ** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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| ** Contact: http://www.qt-project.org/legal
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| **
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| ** This file is part of Qt Creator.
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| **
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| ** Commercial License Usage
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| ** Licensees holding valid commercial Qt licenses may use this file in
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| ** accordance with the commercial license agreement provided with the
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| ** Software or, alternatively, in accordance with the terms contained in
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| ** a written agreement between you and Digia.  For licensing terms and
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| ** conditions see http://qt.digia.com/licensing.  For further information
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| ** use the contact form at http://qt.digia.com/contact-us.
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| **
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| ** GNU Lesser General Public License Usage
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| ** Alternatively, this file may be used under the terms of the GNU Lesser
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| ** General Public License version 2.1 as published by the Free Software
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| ** Foundation and appearing in the file LICENSE.LGPL included in the
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| ** packaging of this file.  Please review the following information to
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| ** ensure the GNU Lesser General Public License version 2.1 requirements
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| ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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| **
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| ** In addition, as a special exception, Digia gives you certain additional
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| ** rights.  These rights are described in the Digia Qt LGPL Exception
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| ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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| **
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| ****************************************************************************/
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| 
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| #include "quickitemnodeinstance.h"
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| 
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| #include "qt5nodeinstanceserver.h"
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| 
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| #include <QQmlExpression>
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| #include <QQuickView>
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| #include <cmath>
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| 
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| #include <private/qquicktextinput_p.h>
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| #include <private/qquicktextedit_p.h>
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| 
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| #include <QHash>
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| 
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| #include <QDebug>
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| 
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| namespace QmlDesigner {
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| namespace Internal {
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| 
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| bool QuickItemNodeInstance::s_createEffectItem = false;
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| 
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| QuickItemNodeInstance::QuickItemNodeInstance(QQuickItem *item)
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|    : ObjectNodeInstance(item),
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|      m_hasHeight(false),
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|      m_hasWidth(false),
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|      m_isResizable(true),
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|      m_hasContent(true),
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|      m_isMovable(true),
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|      m_x(0.0),
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|      m_y(0.0),
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|      m_width(0.0),
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|      m_height(0.0)
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| {
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| }
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| 
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| QuickItemNodeInstance::~QuickItemNodeInstance()
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| {
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|     if (quickItem())
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|         designerSupport()->derefFromEffectItem(quickItem());
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| }
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| 
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| bool QuickItemNodeInstance::hasContent() const
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| {
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|     if (m_hasContent)
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|         return true;
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| 
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|     return childItemsHaveContent(quickItem());
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| }
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| 
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| QList<ServerNodeInstance> QuickItemNodeInstance::childItems() const
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| {
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|     QList<ServerNodeInstance> instanceList;
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| 
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|     foreach (QQuickItem *childItem, quickItem()->childItems())
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|     {
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|         if (childItem && nodeInstanceServer()->hasInstanceForObject(childItem)) {
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|             instanceList.append(nodeInstanceServer()->instanceForObject(childItem));
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|         } else { //there might be an item in between the parent instance
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|                  //and the child instance.
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|                  //Popular example is flickable which has a viewport item between
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|                  //the flickable item and the flickable children
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|             instanceList.append(childItemsForChild(childItem)); //In such a case we go deeper inside the item and
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|                                                            //search for child items with instances.
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|         }
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|     }
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| 
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|     return instanceList;
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| }
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| 
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| QList<ServerNodeInstance> QuickItemNodeInstance::childItemsForChild(QQuickItem *childItem) const
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| {
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|     QList<ServerNodeInstance> instanceList;
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| 
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|     if (childItem) {
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|         foreach (QQuickItem *childItem, childItem->childItems())
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|         {
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|             if (childItem && nodeInstanceServer()->hasInstanceForObject(childItem)) {
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|                 instanceList.append(nodeInstanceServer()->instanceForObject(childItem));
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|             } else {
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|                 instanceList.append(childItemsForChild(childItem));
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|             }
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|         }
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|     }
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|     return instanceList;
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| }
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| 
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| void QuickItemNodeInstance::setHasContent(bool hasContent)
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| {
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|     m_hasContent = hasContent;
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| }
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| 
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| 
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| bool QuickItemNodeInstance::anyItemHasContent(QQuickItem *quickItem)
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| {
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|     if (quickItem->flags().testFlag(QQuickItem::ItemHasContents))
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|         return true;
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| 
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|     foreach (QQuickItem *childItem, quickItem->childItems()) {
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|         if (anyItemHasContent(childItem))
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|             return true;
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|     }
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| 
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|     return false;
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| }
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| 
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| bool QuickItemNodeInstance::childItemsHaveContent(QQuickItem *quickItem)
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| {
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|     foreach (QQuickItem *childItem, quickItem->childItems()) {
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|         if (anyItemHasContent(childItem))
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|             return true;
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|     }
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| 
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|     return false;
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| }
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| 
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| QPointF QuickItemNodeInstance::position() const
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| {
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|     return quickItem()->position();
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| }
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| 
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| static QTransform transformForItem(QQuickItem *item, NodeInstanceServer *nodeInstanceServer)
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| {
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|     QTransform toParentTransform = DesignerSupport::parentTransform(item);
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|     if (item->parentItem() && !nodeInstanceServer->hasInstanceForObject(item->parentItem()))
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|         return transformForItem(item->parentItem(), nodeInstanceServer) * toParentTransform;
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| 
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|     return toParentTransform;
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| }
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| 
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| QTransform QuickItemNodeInstance::transform() const
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| {
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|     return transformForItem(quickItem(), nodeInstanceServer());
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| }
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| 
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| QTransform QuickItemNodeInstance::customTransform() const
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| {
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|     return QTransform();
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| }
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| 
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| QTransform QuickItemNodeInstance::sceneTransform() const
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| {
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|     return DesignerSupport::windowTransform(quickItem());
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| }
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| 
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| double QuickItemNodeInstance::rotation() const
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| {
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|     return quickItem()->rotation();
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| }
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| 
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| double QuickItemNodeInstance::scale() const
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| {
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|     return quickItem()->scale();
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| }
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| 
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| QPointF QuickItemNodeInstance::transformOriginPoint() const
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| {
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|     return quickItem()->transformOriginPoint();
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| }
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| 
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| double QuickItemNodeInstance::zValue() const
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| {
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|     return quickItem()->z();
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| }
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| 
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| double QuickItemNodeInstance::opacity() const
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| {
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|     return quickItem()->opacity();
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| }
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| 
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| QObject *QuickItemNodeInstance::parent() const
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| {
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|     if (!quickItem() || !quickItem()->parentItem())
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|         return 0;
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| 
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|     return quickItem()->parentItem();
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| }
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| 
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| bool QuickItemNodeInstance::equalQuickItem(QQuickItem *item) const
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| {
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|     return item == quickItem();
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| }
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| 
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| void QuickItemNodeInstance::updateDirtyNodeRecursive(QQuickItem *parentItem) const
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| {
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|     foreach (QQuickItem *childItem, parentItem->childItems()) {
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|         if (!nodeInstanceServer()->hasInstanceForObject(childItem))
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|             updateDirtyNodeRecursive(childItem);
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|     }
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| 
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|     DesignerSupport::updateDirtyNode(parentItem);
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| }
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| 
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| void QuickItemNodeInstance::updateAllDirtyNodeRecursive(QQuickItem *parentItem) const
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| {
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|     foreach (QQuickItem *childItem, parentItem->childItems())
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|             updateDirtyNodeRecursive(childItem);
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| 
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|     DesignerSupport::updateDirtyNode(parentItem);
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| }
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| 
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| QImage QuickItemNodeInstance::renderImage() const
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| {
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|     updateDirtyNodeRecursive(quickItem());
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| 
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|     QRectF boundingRect = boundingRectWithStepChilds(quickItem());
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| 
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|     QImage renderImage = designerSupport()->renderImageForItem(quickItem(), boundingRect, boundingRect.size().toSize());
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| 
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|     renderImage = renderImage.convertToFormat(QImage::Format_ARGB32_Premultiplied);
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| 
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|     return renderImage;
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| }
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| 
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| QImage QuickItemNodeInstance::renderPreviewImage(const QSize &previewImageSize) const
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| {
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|     QRectF previewItemBoundingRect = boundingRect();
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| 
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|     if (previewItemBoundingRect.isValid() && quickItem())
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|         return designerSupport()->renderImageForItem(quickItem(), previewItemBoundingRect, previewImageSize);
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| 
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|     return QImage();
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| }
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| 
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| bool QuickItemNodeInstance::isMovable() const
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| {
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|     if (isRootNodeInstance())
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|         return false;
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| 
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|     return m_isMovable && quickItem() && quickItem()->parentItem();
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| }
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| 
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| void QuickItemNodeInstance::setMovable(bool movable)
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| {
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|     m_isMovable = movable;
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| }
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| 
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| QuickItemNodeInstance::Pointer QuickItemNodeInstance::create(QObject *object)
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| {
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|     QQuickItem *quickItem = qobject_cast<QQuickItem*>(object);
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| 
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|     Q_ASSERT(quickItem);
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| 
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|     Pointer instance(new QuickItemNodeInstance(quickItem));
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| 
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|     instance->setHasContent(anyItemHasContent(quickItem));
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|     quickItem->setFlag(QQuickItem::ItemHasContents, true);
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| 
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|     static_cast<QQmlParserStatus*>(quickItem)->classBegin();
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| 
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|     instance->populateResetHashes();
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| 
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|     return instance;
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| }
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| 
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| static void disableTextCursor(QQuickItem *item)
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| {
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|     foreach (QQuickItem *childItem, item->childItems())
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|         disableTextCursor(childItem);
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| 
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|     QQuickTextInput *textInput = qobject_cast<QQuickTextInput*>(item);
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|     if (textInput)
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|         textInput->setCursorVisible(false);
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| 
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|     QQuickTextEdit *textEdit = qobject_cast<QQuickTextEdit*>(item);
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|     if (textEdit)
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|         textEdit->setCursorVisible(false);
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| }
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| 
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| void QuickItemNodeInstance::initialize(const ObjectNodeInstance::Pointer &objectNodeInstance)
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| {
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|     if (instanceId() == 0) {
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|         DesignerSupport::setRootItem(nodeInstanceServer()->quickView(), quickItem());
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|     } else {
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|         quickItem()->setParentItem(qobject_cast<QQuickItem*>(nodeInstanceServer()->quickView()->rootObject()));
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|     }
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| 
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|     if (s_createEffectItem || instanceId() == 0)
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|         designerSupport()->refFromEffectItem(quickItem());
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| 
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|     ObjectNodeInstance::initialize(objectNodeInstance);
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|     quickItem()->update();
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| }
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| 
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| bool QuickItemNodeInstance::isQuickItem() const
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| {
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|     return true;
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| }
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| 
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| QSizeF QuickItemNodeInstance::size() const
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| {
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|     double width;
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| 
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|     if (DesignerSupport::isValidWidth(quickItem())) {
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|         width = quickItem()->width();
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|     } else {
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|         width = quickItem()->implicitWidth();
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|     }
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| 
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|     double height;
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| 
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|     if (DesignerSupport::isValidHeight(quickItem())) {
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|         height = quickItem()->height();
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|     } else {
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|         height = quickItem()->implicitHeight();
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|     }
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| 
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| 
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|     return QSizeF(width, height);
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| }
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| 
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| static inline bool isRectangleSane(const QRectF &rect)
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| {
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|     return rect.isValid() && (rect.width() < 10000) && (rect.height() < 10000);
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| }
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| 
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| QRectF QuickItemNodeInstance::boundingRectWithStepChilds(QQuickItem *parentItem) const
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| {
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|     QRectF boundingRect = parentItem->boundingRect();
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| 
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|     foreach (QQuickItem *childItem, parentItem->childItems()) {
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|         if (!nodeInstanceServer()->hasInstanceForObject(childItem)) {
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|             QRectF transformedRect = childItem->mapRectToItem(parentItem, boundingRectWithStepChilds(childItem));
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|             if (isRectangleSane(transformedRect))
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|                 boundingRect = boundingRect.united(transformedRect);
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|         }
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|     }
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| 
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|     return boundingRect;
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| }
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| 
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| QRectF QuickItemNodeInstance::boundingRect() const
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| {
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|     if (quickItem()) {
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|         if (quickItem()->clip()) {
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|             return quickItem()->boundingRect();
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|         } else {
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|             return boundingRectWithStepChilds(quickItem());
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|         }
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|     }
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| 
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|     return QRectF();
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| }
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| 
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| void QuickItemNodeInstance::setPropertyVariant(const PropertyName &name, const QVariant &value)
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| {
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|     if (name == "state")
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|         return; // states are only set by us
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| 
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|     if (name == "height") {
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|         m_height = value.toDouble();
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|        if (value.isValid())
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|            m_hasHeight = true;
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|        else
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|            m_hasHeight = false;
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|     }
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| 
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|     if (name == "width") {
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|        m_width = value.toDouble();
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|        if (value.isValid())
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|            m_hasWidth = true;
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|        else
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|            m_hasWidth = false;
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|     }
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| 
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|     if (name == "x")
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|         m_x = value.toDouble();
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| 
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|     if (name == "y")
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|         m_y = value.toDouble();
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| 
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|     ObjectNodeInstance::setPropertyVariant(name, value);
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| 
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|     quickItem()->update();
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| 
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|     refresh();
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| 
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|     if (isInPositioner())
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|         parentInstance()->refreshPositioner();
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| }
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| 
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| void QuickItemNodeInstance::setPropertyBinding(const PropertyName &name, const QString &expression)
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| {
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|     if (name == "state")
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|         return; // states are only set by us
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| 
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|     ObjectNodeInstance::setPropertyBinding(name, expression);
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| 
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|     quickItem()->update();
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| 
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|     refresh();
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| 
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|     if (isInPositioner())
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|         parentInstance()->refreshPositioner();
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| }
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| 
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| QVariant QuickItemNodeInstance::property(const PropertyName &name) const
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| {
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|     return ObjectNodeInstance::property(name);
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| }
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| 
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| void QuickItemNodeInstance::resetHorizontal()
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|  {
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|     setPropertyVariant("x", m_x);
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|     if (m_width > 0.0) {
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|         setPropertyVariant("width", m_width);
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|     } else {
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|         setPropertyVariant("width", quickItem()->implicitWidth());
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|     }
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| }
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| 
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| void QuickItemNodeInstance::resetVertical()
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|  {
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|     setPropertyVariant("y", m_y);
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|     if (m_height > 0.0) {
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|         setPropertyVariant("height", m_height);
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|     } else {
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|         setPropertyVariant("height", quickItem()->implicitWidth());
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|     }
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| }
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| 
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| static void repositioning(QQuickItem *item)
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| {
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|     if (!item)
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|         return;
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| 
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| //    QQmlBasePositioner *positioner = qobject_cast<QQmlBasePositioner*>(item);
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| //    if (positioner)
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| //        positioner->rePositioning();
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| 
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|     if (item->parentItem())
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|         repositioning(item->parentItem());
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| }
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| 
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| void QuickItemNodeInstance::refresh()
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| {
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|     repositioning(quickItem());
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| }
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| 
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| static void doComponentCompleteRecursive(QQuickItem *item)
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| {
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|     if (item) {
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|         if (DesignerSupport::isComponentComplete(item))
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|             return;
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| 
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|         foreach (QQuickItem *childItem, item->childItems())
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|             doComponentCompleteRecursive(childItem);
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| 
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|         static_cast<QQmlParserStatus*>(item)->componentComplete();
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|     }
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| }
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| 
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| void QuickItemNodeInstance::doComponentComplete()
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| {
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|     doComponentCompleteRecursive(quickItem());
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| 
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|     disableTextCursor(quickItem());
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| 
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|     quickItem()->update();
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| }
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| 
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| bool QuickItemNodeInstance::isResizable() const
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| {
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|     if (isRootNodeInstance())
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|         return false;
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| 
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|     return m_isResizable && quickItem() && quickItem()->parentItem();
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| }
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| 
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| void QuickItemNodeInstance::setResizable(bool resizeable)
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| {
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|     m_isResizable = resizeable;
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| }
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| 
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| int QuickItemNodeInstance::penWidth() const
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| {
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|     return DesignerSupport::borderWidth(quickItem());
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| }
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| 
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| void QuickItemNodeInstance::resetProperty(const PropertyName &name)
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| {
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|     if (name == "height") {
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|         m_hasHeight = false;
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|         m_height = 0.0;
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|     }
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| 
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|     if (name == "width") {
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|         m_hasWidth = false;
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|         m_width = 0.0;
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|     }
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| 
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|     if (name == "x")
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|         m_x = 0.0;
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| 
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|     if (name == "y")
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|         m_y = 0.0;
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| 
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|     DesignerSupport::resetAnchor(quickItem(), name);
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| 
 | |
|     if (name == "anchors.fill") {
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|         resetHorizontal();
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|         resetVertical();
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|     } else if (name == "anchors.centerIn") {
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|         resetHorizontal();
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|         resetVertical();
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|     } else if (name == "anchors.top") {
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|         resetVertical();
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|     } else if (name == "anchors.left") {
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|         resetHorizontal();
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|     } else if (name == "anchors.right") {
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|         resetHorizontal();
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|     } else if (name == "anchors.bottom") {
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|         resetVertical();
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|     } else if (name == "anchors.horizontalCenter") {
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|         resetHorizontal();
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|     } else if (name == "anchors.verticalCenter") {
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|         resetVertical();
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|     } else if (name == "anchors.baseline") {
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|         resetVertical();
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|     }
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| 
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|     ObjectNodeInstance::resetProperty(name);
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| 
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|     quickItem()->update();
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| 
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|     if (isInPositioner())
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|         parentInstance()->refreshPositioner();
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| }
 | |
| 
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| void QuickItemNodeInstance::reparent(const ObjectNodeInstance::Pointer &oldParentInstance, const PropertyName &oldParentProperty, const ObjectNodeInstance::Pointer &newParentInstance, const PropertyName &newParentProperty)
 | |
| {
 | |
|     if (oldParentInstance && oldParentInstance->isPositioner()) {
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|         setInPositioner(false);
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|         setMovable(true);
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|     }
 | |
| 
 | |
|     ObjectNodeInstance::reparent(oldParentInstance, oldParentProperty, newParentInstance, newParentProperty);
 | |
| 
 | |
|     if (newParentInstance && newParentInstance->isPositioner()) {
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|         setInPositioner(true);
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|         setMovable(false);
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|     }
 | |
| 
 | |
|     if (oldParentInstance && oldParentInstance->isPositioner() && !(newParentInstance && newParentInstance->isPositioner())) {
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|         if (!hasBindingForProperty("x"))
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|             setPropertyVariant("x", m_x);
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| 
 | |
|         if (!hasBindingForProperty("y"))
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|             setPropertyVariant("y", m_y);
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|     }
 | |
| 
 | |
|     refresh();
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|     DesignerSupport::updateDirtyNode(quickItem());
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| 
 | |
|     if (parentInstance() && isInPositioner())
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|         parentInstance()->refreshPositioner();
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| }
 | |
| 
 | |
| static bool isValidAnchorName(const PropertyName &name)
 | |
| {
 | |
|     static PropertyNameList anchorNameList(PropertyNameList() << "anchors.top"
 | |
|                                                     << "anchors.left"
 | |
|                                                     << "anchors.right"
 | |
|                                                     << "anchors.bottom"
 | |
|                                                     << "anchors.verticalCenter"
 | |
|                                                     << "anchors.horizontalCenter"
 | |
|                                                     << "anchors.fill"
 | |
|                                                     << "anchors.centerIn"
 | |
|                                                     << "anchors.baseline");
 | |
| 
 | |
|     return anchorNameList.contains(name);
 | |
| }
 | |
| 
 | |
| bool QuickItemNodeInstance::hasAnchor(const PropertyName &name) const
 | |
| {
 | |
|     return DesignerSupport::hasAnchor(quickItem(), name);
 | |
| }
 | |
| 
 | |
| QPair<PropertyName, ServerNodeInstance> QuickItemNodeInstance::anchor(const PropertyName &name) const
 | |
| {
 | |
|     if (!isValidAnchorName(name) || !DesignerSupport::hasAnchor(quickItem(), name))
 | |
|         return ObjectNodeInstance::anchor(name);
 | |
| 
 | |
|     QPair<QString, QObject*> nameObjectPair = DesignerSupport::anchorLineTarget(quickItem(), name, context());
 | |
| 
 | |
|     QObject *targetObject = nameObjectPair.second;
 | |
|     PropertyName targetName = nameObjectPair.first.toUtf8();
 | |
| 
 | |
|     if (targetObject && nodeInstanceServer()->hasInstanceForObject(targetObject)) {
 | |
|         return qMakePair(targetName, nodeInstanceServer()->instanceForObject(targetObject));
 | |
|     } else {
 | |
|         return ObjectNodeInstance::anchor(name);
 | |
|     }
 | |
| }
 | |
| 
 | |
| QList<ServerNodeInstance> QuickItemNodeInstance::stateInstances() const
 | |
| {
 | |
|     QList<ServerNodeInstance> instanceList;
 | |
|     QList<QObject*> stateList = DesignerSupport::statesForItem(quickItem());
 | |
|     foreach (QObject *state, stateList)
 | |
|     {
 | |
|         if (state && nodeInstanceServer()->hasInstanceForObject(state))
 | |
|             instanceList.append(nodeInstanceServer()->instanceForObject(state));
 | |
|     }
 | |
| 
 | |
|     return instanceList;
 | |
| }
 | |
| 
 | |
| bool QuickItemNodeInstance::isAnchoredBySibling() const
 | |
| {
 | |
|     if (quickItem()->parentItem()) {
 | |
|         foreach (QQuickItem *siblingItem, quickItem()->parentItem()->childItems()) { // search in siblings for a anchor to this item
 | |
|             if (siblingItem) {
 | |
|                 if (DesignerSupport::isAnchoredTo(siblingItem, quickItem()))
 | |
|                     return true;
 | |
|             }
 | |
|         }
 | |
|     }
 | |
| 
 | |
|     return false;
 | |
| }
 | |
| 
 | |
| bool QuickItemNodeInstance::isAnchoredByChildren() const
 | |
| {
 | |
|     if (DesignerSupport::areChildrenAnchoredTo(quickItem(), quickItem())) // search in children for a anchor to this item
 | |
|         return true;
 | |
| 
 | |
|     return false;
 | |
| }
 | |
| 
 | |
| QQuickItem *QuickItemNodeInstance::quickItem() const
 | |
| {
 | |
|     if (object() == 0)
 | |
|         return 0;
 | |
| 
 | |
|     Q_ASSERT(qobject_cast<QQuickItem*>(object()));
 | |
|     return static_cast<QQuickItem*>(object());
 | |
| }
 | |
| 
 | |
| DesignerSupport *QuickItemNodeInstance::designerSupport() const
 | |
| {
 | |
|     return qt5NodeInstanceServer()->designerSupport();
 | |
| }
 | |
| 
 | |
| Qt5NodeInstanceServer *QuickItemNodeInstance::qt5NodeInstanceServer() const
 | |
| {
 | |
|     return qobject_cast<Qt5NodeInstanceServer*>(nodeInstanceServer());
 | |
| }
 | |
| 
 | |
| void QuickItemNodeInstance::createEffectItem(bool createEffectItem)
 | |
| {
 | |
|     s_createEffectItem = createEffectItem;
 | |
| }
 | |
| 
 | |
| void QuickItemNodeInstance::updateDirtyNodeRecursive()
 | |
| {
 | |
|     updateAllDirtyNodeRecursive(quickItem());
 | |
| }
 | |
| 
 | |
| } // namespace Internal
 | |
| } // namespace QmlDesigner
 | |
| 
 |