forked from qt-creator/qt-creator
c76ddfc489
During destruction both new parent and old parent are invalid. The intPositioner flag is not updated (isInPositioner()) and we crash. The check for parentInstance() avoids this. Change-Id: I5224c58bb461956f7ce2c47349650913975aa836 Reviewed-by: Marco Bubke <marco.bubke@digia.com>
611 lines
16 KiB
C++
611 lines
16 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2012 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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#include "quickitemnodeinstance.h"
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#include "qt5nodeinstanceserver.h"
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#include <QQmlExpression>
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#include <QQuickView>
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#include <cmath>
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#include <QHash>
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#include <QDebug>
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namespace QmlDesigner {
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namespace Internal {
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bool QuickItemNodeInstance::s_createEffectItem = false;
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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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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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bool QuickItemNodeInstance::hasContent() const
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{
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return m_hasContent;
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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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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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return instanceList;
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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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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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void QuickItemNodeInstance::setHasContent(bool hasContent)
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{
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m_hasContent = hasContent;
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}
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bool QuickItemNodeInstance::anyItemHasContent(QQuickItem *graphicsItem)
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{
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if (graphicsItem->flags().testFlag(QQuickItem::ItemHasContents))
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return true;
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foreach (QQuickItem *childItem, graphicsItem->childItems()) {
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if (anyItemHasContent(childItem))
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return true;
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}
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return false;
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}
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QPointF QuickItemNodeInstance::position() const
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{
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return quickItem()->pos();
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}
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QTransform QuickItemNodeInstance::transform() const
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{
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return DesignerSupport::parentTransform(quickItem());
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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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QTransform QuickItemNodeInstance::sceneTransform() const
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{
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return DesignerSupport::windowTransform(quickItem());
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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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double QuickItemNodeInstance::scale() const
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{
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return quickItem()->scale();
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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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double QuickItemNodeInstance::zValue() const
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{
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return quickItem()->z();
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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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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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return quickItem()->parentItem();
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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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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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DesignerSupport::updateDirtyNode(parentItem);
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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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QRectF boundingRect = boundingRectWithStepChilds(quickItem());
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QImage renderImage = designerSupport()->renderImageForItem(quickItem(), boundingRect, boundingRect.size().toSize());
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renderImage = renderImage.convertToFormat(QImage::Format_ARGB32_Premultiplied);
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return renderImage;
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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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return m_isMovable && quickItem() && quickItem()->parentItem();
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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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QuickItemNodeInstance::Pointer QuickItemNodeInstance::create(QObject *object)
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{
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QQuickItem *quickItem = qobject_cast<QQuickItem*>(object);
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Q_ASSERT(quickItem);
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Pointer instance(new QuickItemNodeInstance(quickItem));
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instance->setHasContent(anyItemHasContent(quickItem));
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quickItem->setFlag(QQuickItem::ItemHasContents, true);
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static_cast<QQmlParserStatus*>(quickItem)->classBegin();
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instance->populateResetHashes();
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return instance;
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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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if (s_createEffectItem || instanceId() == 0)
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designerSupport()->refFromEffectItem(quickItem());
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ObjectNodeInstance::initialize(objectNodeInstance);
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quickItem()->update();
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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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QSizeF QuickItemNodeInstance::size() const
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{
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double width;
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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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double height;
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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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return QSizeF(width, height);
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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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QRectF QuickItemNodeInstance::boundingRectWithStepChilds(QQuickItem *parentItem) const
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{
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QRectF boundingRect = parentItem->boundingRect();
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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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return boundingRect;
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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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return QRectF();
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}
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void QuickItemNodeInstance::setPropertyVariant(const QString &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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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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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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if (name == "x")
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m_x = value.toDouble();
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if (name == "y")
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m_y = value.toDouble();
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ObjectNodeInstance::setPropertyVariant(name, value);
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refresh();
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if (isInPositioner())
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parentInstance()->refreshPositioner();
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}
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void QuickItemNodeInstance::setPropertyBinding(const QString &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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ObjectNodeInstance::setPropertyBinding(name, expression);
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refresh();
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if (isInPositioner())
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parentInstance()->refreshPositioner();
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}
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QVariant QuickItemNodeInstance::property(const QString &name) const
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{
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return ObjectNodeInstance::property(name);
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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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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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static void repositioning(QQuickItem *item)
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{
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if (!item)
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return;
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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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if (item->parentItem())
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repositioning(item->parentItem());
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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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void QuickItemNodeInstance::doComponentComplete()
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{
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if (quickItem()) {
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if (DesignerSupport::isComponentComplete(quickItem()))
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return;
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static_cast<QQmlParserStatus*>(quickItem())->componentComplete();
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}
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quickItem()->update();
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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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return m_isResizable && quickItem() && quickItem()->parentItem();
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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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int QuickItemNodeInstance::penWidth() const
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{
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return DesignerSupport::borderWidth(quickItem());
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}
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void QuickItemNodeInstance::resetProperty(const QString &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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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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if (name == "x")
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m_x = 0.0;
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if (name == "y")
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m_y = 0.0;
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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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ObjectNodeInstance::resetProperty(name);
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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 QString &oldParentProperty, const ObjectNodeInstance::Pointer &newParentInstance, const QString &newParentProperty)
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{
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if (oldParentInstance && oldParentInstance->isPositioner()) {
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setInPositioner(false);
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setMovable(true);
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}
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ObjectNodeInstance::reparent(oldParentInstance, oldParentProperty, newParentInstance, newParentProperty);
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if (newParentInstance && newParentInstance->isPositioner()) {
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setInPositioner(true);
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setMovable(false);
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}
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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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}
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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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}
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static bool isValidAnchorName(const QString &name)
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{
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static QStringList anchorNameList(QStringList() << "anchors.top"
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<< "anchors.left"
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<< "anchors.right"
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<< "anchors.bottom"
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<< "anchors.verticalCenter"
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<< "anchors.horizontalCenter"
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<< "anchors.fill"
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<< "anchors.centerIn"
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<< "anchors.baseline");
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return anchorNameList.contains(name);
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}
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bool QuickItemNodeInstance::hasAnchor(const QString &name) const
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{
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return DesignerSupport::hasAnchor(quickItem(), name);
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}
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QPair<QString, ServerNodeInstance> QuickItemNodeInstance::anchor(const QString &name) const
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{
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if (!isValidAnchorName(name) || !DesignerSupport::hasAnchor(quickItem(), name))
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return ObjectNodeInstance::anchor(name);
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QPair<QString, QObject*> nameObjectPair = DesignerSupport::anchorLineTarget(quickItem(), name, context());
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QObject *targetObject = nameObjectPair.second;
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QString targetName = nameObjectPair.first;
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if (targetObject && nodeInstanceServer()->hasInstanceForObject(targetObject)) {
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return qMakePair(targetName, nodeInstanceServer()->instanceForObject(targetObject));
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} else {
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return ObjectNodeInstance::anchor(name);
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}
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}
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QList<ServerNodeInstance> QuickItemNodeInstance::stateInstances() const
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{
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QList<ServerNodeInstance> instanceList;
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QList<QObject*> stateList = DesignerSupport::statesForItem(quickItem());
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foreach (QObject *state, stateList)
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{
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if (state && nodeInstanceServer()->hasInstanceForObject(state))
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instanceList.append(nodeInstanceServer()->instanceForObject(state));
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}
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return instanceList;
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}
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bool QuickItemNodeInstance::isAnchoredBySibling() const
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{
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if (quickItem()->parentItem()) {
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foreach (QQuickItem *siblingItem, quickItem()->parentItem()->childItems()) { // search in siblings for a anchor to this item
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if (siblingItem) {
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if (DesignerSupport::isAnchoredTo(siblingItem, quickItem()))
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return true;
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}
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}
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}
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return false;
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}
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bool QuickItemNodeInstance::isAnchoredByChildren() const
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{
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if (DesignerSupport::areChildrenAnchoredTo(quickItem(), quickItem())) // search in children for a anchor to this item
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return true;
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return false;
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}
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QQuickItem *QuickItemNodeInstance::quickItem() const
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{
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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;
|
|
}
|
|
|
|
} // namespace Internal
|
|
} // namespace QmlDesigner
|
|
|