Files
qt-creator/share/qtcreator/qml/qmlpuppet/qml2puppet/instances/quickitemnodeinstance.cpp
Thomas Hartmann 30827fe401 QmlDesigner: Implement visibility for unified render path
If the item is set to invisible we set visible to false in
the render and preview puppets. This will have no effect on the
value in the property editor.

Changing the actual value of visible can have side-effects on
the rendering in some rare cases.

Task-number: QDS-4932
Change-Id: I5ce0925ebff8f5e4e64bc71fd5d33d6154b85f91
Reviewed-by: Miikka Heikkinen <miikka.heikkinen@qt.io>
2021-08-26 14:18:37 +00:00

955 lines
27 KiB
C++

/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/
#include "quickitemnodeinstance.h"
#include "qt5nodeinstanceserver.h"
#include <qmlprivategate.h>
#include <QQmlProperty>
#include <QQmlExpression>
#include <QQuickView>
#include <cmath>
#include <QHash>
#include <QDebug>
namespace QmlDesigner {
namespace Internal {
bool QuickItemNodeInstance::s_createEffectItem = false;
bool QuickItemNodeInstance::s_unifiedRenderPath = false;
QuickItemNodeInstance::QuickItemNodeInstance(QQuickItem *item)
: ObjectNodeInstance(item),
m_isResizable(true),
m_isMovable(true),
m_hasHeight(false),
m_hasWidth(false),
m_hasContent(true),
m_x(0.0),
m_y(0.0),
m_width(0.0),
m_height(0.0)
{
}
QuickItemNodeInstance::~QuickItemNodeInstance()
{
}
void QuickItemNodeInstance::handleObjectDeletion(QObject *object)
{
auto item = qobject_cast<QQuickItem *>(object);
if (item && checkIfRefFromEffect(instanceId()))
designerSupport()->derefFromEffectItem(item);
ObjectNodeInstance::handleObjectDeletion(object);
}
static bool isContentItem(QQuickItem *item, NodeInstanceServer *nodeInstanceServer)
{
return item->parentItem()
&& nodeInstanceServer->hasInstanceForObject(item->parentItem())
&& nodeInstanceServer->instanceForObject(item->parentItem()).internalInstance()->contentItem() == item;
}
static QTransform transformForItem(QQuickItem *item, NodeInstanceServer *nodeInstanceServer)
{
if (isContentItem(item, nodeInstanceServer))
return QTransform();
QTransform toParentTransform = DesignerSupport::parentTransform(item);
if (item->parentItem() && !nodeInstanceServer->hasInstanceForObject(item->parentItem())) {
return transformForItem(item->parentItem(), nodeInstanceServer) * toParentTransform;
}
return toParentTransform;
}
QTransform QuickItemNodeInstance::transform() const
{ if (quickItem()->parentItem())
return DesignerSupport::parentTransform(quickItem());
return QTransform();
}
QObject *QuickItemNodeInstance::parent() const
{
if (!quickItem() || !quickItem()->parentItem())
return nullptr;
return quickItem()->parentItem();
}
QList<ServerNodeInstance> QuickItemNodeInstance::childItems() const
{
QList<ServerNodeInstance> instanceList;
foreach (QQuickItem *childItem, quickItem()->childItems())
{
if (childItem && nodeInstanceServer()->hasInstanceForObject(childItem)) {
instanceList.append(nodeInstanceServer()->instanceForObject(childItem));
} else { //there might be an item in between the parent instance
//and the child instance.
//Popular example is flickable which has a viewport item between
//the flickable item and the flickable children
instanceList.append(childItemsForChild(childItem)); //In such a case we go deeper inside the item and
//search for child items with instances.
}
}
return instanceList;
}
bool QuickItemNodeInstance::isMovable() const
{
if (isRootNodeInstance())
return false;
return m_isMovable && quickItem() && quickItem()->parentItem();
}
void QuickItemNodeInstance::setMovable(bool movable)
{
m_isMovable = movable;
}
QuickItemNodeInstance::Pointer QuickItemNodeInstance::create(QObject *object)
{
QQuickItem *quickItem = qobject_cast<QQuickItem*>(object);
Q_ASSERT(quickItem);
Pointer instance(new QuickItemNodeInstance(quickItem));
instance->setHasContent(anyItemHasContent(quickItem));
quickItem->setFlag(QQuickItem::ItemHasContents, true);
static_cast<QQmlParserStatus*>(quickItem)->classBegin();
instance->populateResetHashes();
return instance;
}
void QuickItemNodeInstance::createEffectItem(bool createEffectItem)
{
s_createEffectItem = createEffectItem;
}
void QuickItemNodeInstance::enableUnifiedRenderPath(bool unifiedRenderPath)
{
s_unifiedRenderPath = unifiedRenderPath;
}
bool QuickItemNodeInstance::checkIfRefFromEffect(qint32 id)
{
#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
if (s_unifiedRenderPath)
return false;
return (s_createEffectItem || id == 0);
#else
Q_UNUSED(id)
return false;
#endif
}
void QuickItemNodeInstance::initialize(const ObjectNodeInstance::Pointer &objectNodeInstance,
InstanceContainer::NodeFlags flags)
{
if (instanceId() == 0)
nodeInstanceServer()->setRootItem(quickItem());
else
quickItem()->setParentItem(nodeInstanceServer()->rootItem());
if (quickItem()->window() && checkIfRefFromEffect(instanceId())) {
designerSupport()->refFromEffectItem(quickItem(),
!flags.testFlag(
InstanceContainer::ParentTakesOverRendering));
}
ObjectNodeInstance::initialize(objectNodeInstance, flags);
}
QQuickItem *QuickItemNodeInstance::contentItem() const
{
return m_contentItem.data();
}
bool QuickItemNodeInstance::hasContent() const
{
if (m_hasContent)
return true;
return childItemsHaveContent(quickItem());
}
void QuickItemNodeInstance::doComponentComplete()
{
ObjectNodeInstance::doComponentComplete();
QmlPrivateGate::disableTextCursor(quickItem());
QmlPrivateGate::emitComponentComplete(quickItem());
QQmlProperty contentItemProperty(quickItem(), "contentItem", engine());
if (contentItemProperty.isValid())
m_contentItem = contentItemProperty.read().value<QQuickItem*>();
quickItem()->update();
}
static QList<QQuickItem *> allChildItemsRecursive(QQuickItem *parentItem)
{
QList<QQuickItem *> itemList;
itemList.append(parentItem->childItems());
foreach (QQuickItem *childItem, parentItem->childItems())
itemList.append(allChildItemsRecursive(childItem));
return itemList;
}
QList<QQuickItem *> QuickItemNodeInstance::allItemsRecursive() const
{
QList<QQuickItem *> itemList;
if (quickItem()) {
if (quickItem()->parentItem())
itemList.append(quickItem()->parentItem());
itemList.append(quickItem());
itemList.append(allChildItemsRecursive(quickItem()));
}
return itemList;
}
QStringList QuickItemNodeInstance::allStates() const
{
QStringList list;
QList<QObject*> stateList = DesignerSupport::statesForItem(quickItem());
for (QObject *state : stateList) {
QQmlProperty property(state, "name");
if (property.isValid())
list.append(property.read().toString());
}
return list;
}
void QuickItemNodeInstance::updateDirtyNode(QQuickItem *item)
{
#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
if (s_unifiedRenderPath)
return;
DesignerSupport::updateDirtyNode(item);
#else
Q_UNUSED(item)
#endif
}
bool QuickItemNodeInstance::unifiedRenderPath()
{
return s_unifiedRenderPath;
}
bool QuickItemNodeInstance::unifiedRenderPathOrQt6()
{
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
return true;
#else
return s_unifiedRenderPath;
#endif
}
void QuickItemNodeInstance::setHiddenInEditor(bool hide)
{
ObjectNodeInstance::setHiddenInEditor(hide);
if (s_unifiedRenderPath && !nodeInstanceServer()->isInformationServer()) {
QQmlProperty property(object(), "visible", context());
if (!property.isValid())
return;
bool visible = property.read().toBool();
if (hide && visible) {
setPropertyVariant("visible", false);
m_hidden = true;
} else if (!hide && !visible && m_hidden) {
setPropertyVariant("visible", true);
m_hidden = false;
}
}
}
QRectF QuickItemNodeInstance::contentItemBoundingBox() const
{
if (contentItem()) {
QTransform contentItemTransform = DesignerSupport::parentTransform(contentItem());
return contentItemTransform.mapRect(contentItem()->boundingRect());
}
return QRectF();
}
QRectF QuickItemNodeInstance::boundingRect() const
{
if (quickItem()) {
if (quickItem()->clip()) {
return quickItem()->boundingRect();
} else {
return boundingRectWithStepChilds(quickItem());
}
}
return QRectF();
}
static QTransform contentTransformForItem(QQuickItem *item, NodeInstanceServer *nodeInstanceServer)
{
QTransform contentTransform;
if (item->parentItem() && !nodeInstanceServer->hasInstanceForObject(item->parentItem())) {
contentTransform = DesignerSupport::parentTransform(item->parentItem());
return contentTransformForItem(item->parentItem(), nodeInstanceServer) * contentTransform;
}
return contentTransform;
}
QTransform QuickItemNodeInstance::contentTransform() const
{
return contentTransformForItem(quickItem(), nodeInstanceServer());
}
QTransform QuickItemNodeInstance::sceneTransform() const
{
return DesignerSupport::windowTransform(quickItem());
}
double QuickItemNodeInstance::opacity() const
{
return quickItem()->opacity();
}
double QuickItemNodeInstance::rotation() const
{
return quickItem()->rotation();
}
double QuickItemNodeInstance::scale() const
{
return quickItem()->scale();
}
QPointF QuickItemNodeInstance::transformOriginPoint() const
{
return quickItem()->transformOriginPoint();
}
double QuickItemNodeInstance::zValue() const
{
return quickItem()->z();
}
QPointF QuickItemNodeInstance::position() const
{
return quickItem()->position();
}
QSizeF QuickItemNodeInstance::size() const
{
double width;
if (DesignerSupport::isValidHeight(quickItem())) { // isValidHeight is QQuickItemPrivate::get(item)->widthValid
width = quickItem()->width();
} else {
width = quickItem()->implicitWidth();
}
double height;
if (DesignerSupport::isValidWidth(quickItem())) { // isValidWidth is QQuickItemPrivate::get(item)->heightValid
height = quickItem()->height();
} else {
height = quickItem()->implicitHeight();
}
return QSizeF(width, height);
}
static QTransform contentItemTransformForItem(QQuickItem *item, NodeInstanceServer *nodeInstanceServer)
{
QTransform toParentTransform = DesignerSupport::parentTransform(item);
if (item->parentItem() && !nodeInstanceServer->hasInstanceForObject(item->parentItem())) {
return transformForItem(item->parentItem(), nodeInstanceServer) * toParentTransform;
}
return toParentTransform;
}
QTransform QuickItemNodeInstance::contentItemTransform() const
{
if (contentItem())
return contentItemTransformForItem(contentItem(), nodeInstanceServer());
return QTransform();
}
int QuickItemNodeInstance::penWidth() const
{
return DesignerSupport::borderWidth(quickItem());
}
double QuickItemNodeInstance::x() const
{
return m_x;
}
double QuickItemNodeInstance::y() const
{
return m_y;
}
QImage QuickItemNodeInstance::renderImage() const
{
if (s_unifiedRenderPath && !isRootNodeInstance())
return {};
updateDirtyNodesRecursive(quickItem());
QRectF renderBoundingRect = boundingRect();
QImage renderImage;
#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
QSize size = renderBoundingRect.size().toSize();
static double devicePixelRatio = qgetenv("FORMEDITOR_DEVICE_PIXEL_RATIO").toDouble();
if (size.width() * size.height() > 4000 * 4000)
size = QSize(0,0);
size *= devicePixelRatio;
if (s_unifiedRenderPath) {
renderImage = nodeInstanceServer()->quickWindow()->grabWindow();
} else {
// Fake render loop signaling to update things like QML items as 3D textures
nodeInstanceServer()->quickWindow()->beforeSynchronizing();
nodeInstanceServer()->quickWindow()->beforeRendering();
renderImage = designerSupport()->renderImageForItem(quickItem(), renderBoundingRect, size);
nodeInstanceServer()->quickWindow()->afterRendering();
}
renderImage.setDevicePixelRatio(devicePixelRatio);
#else
if (s_unifiedRenderPath)
renderImage = nodeInstanceServer()->grabWindow();
else
renderImage = nodeInstanceServer()->grabItem(quickItem());
renderImage = renderImage.copy(renderBoundingRect.toRect());
/* When grabbing an offscren window the device pixel ratio is 1 */
renderImage.setDevicePixelRatio(1);
#endif
return renderImage;
}
QImage QuickItemNodeInstance::renderPreviewImage(const QSize &previewImageSize) const
{
QRectF previewItemBoundingRect = boundingRect();
if (previewItemBoundingRect.isValid() && quickItem()) {
static double devicePixelRatio = qgetenv("FORMEDITOR_DEVICE_PIXEL_RATIO").toDouble();
const QSize size = previewImageSize * devicePixelRatio;
if (quickItem()->isVisible()) {
QImage image;
#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
if (s_unifiedRenderPath) {
image = nodeInstanceServer()->quickWindow()->grabWindow();
} else {
// Fake render loop signaling to update things like QML items as 3D textures
nodeInstanceServer()->quickWindow()->beforeSynchronizing();
nodeInstanceServer()->quickWindow()->beforeRendering();
image = designerSupport()->renderImageForItem(quickItem(),
previewItemBoundingRect,
size);
nodeInstanceServer()->quickWindow()->afterRendering();
}
#else
image = nodeInstanceServer()->grabWindow();
image = image.copy(previewItemBoundingRect.toRect());
#endif
image = image.scaledToWidth(size.width());
return image;
} else {
QImage transparentImage(size, QImage::Format_ARGB32_Premultiplied);
transparentImage.fill(Qt::transparent);
return transparentImage;
}
}
return QImage();
}
QSharedPointer<QQuickItemGrabResult> QuickItemNodeInstance::createGrabResult() const
{
return quickItem()->grabToImage(size().toSize());
}
void QuickItemNodeInstance::updateAllDirtyNodesRecursive()
{
updateAllDirtyNodesRecursive(quickItem());
}
bool QuickItemNodeInstance::isQuickItem() const
{
return true;
}
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::isResizable() const
{
if (isRootNodeInstance())
return false;
return m_isResizable && quickItem() && quickItem()->parentItem();
}
void QuickItemNodeInstance::setResizable(bool resizable)
{
m_isResizable = resizable;
}
void QuickItemNodeInstance::setHasContent(bool hasContent)
{
m_hasContent = hasContent;
}
DesignerSupport *QuickItemNodeInstance::designerSupport() const
{
return qt5NodeInstanceServer()->designerSupport();
}
Qt5NodeInstanceServer *QuickItemNodeInstance::qt5NodeInstanceServer() const
{
return qobject_cast<Qt5NodeInstanceServer*>(nodeInstanceServer());
}
void QuickItemNodeInstance::updateDirtyNodesRecursive(QQuickItem *parentItem) const
{
foreach (QQuickItem *childItem, parentItem->childItems()) {
if (!nodeInstanceServer()->hasInstanceForObject(childItem))
updateDirtyNodesRecursive(childItem);
}
QmlPrivateGate::disableNativeTextRendering(parentItem);
#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
DesignerSupport::updateDirtyNode(parentItem);
#endif
}
void QuickItemNodeInstance::updateAllDirtyNodesRecursive(QQuickItem *parentItem) const
{
const QList<QQuickItem *> children = parentItem->childItems();
for (QQuickItem *childItem : children)
updateAllDirtyNodesRecursive(childItem);
updateDirtyNode(parentItem);
}
static inline bool isRectangleSane(const QRectF &rect)
{
return rect.isValid() && (rect.width() < 10000) && (rect.height() < 10000);
}
QRectF QuickItemNodeInstance::boundingRectWithStepChilds(QQuickItem *parentItem) const
{
QRectF boundingRect = parentItem->boundingRect();
boundingRect = boundingRect.united(QRectF(QPointF(0, 0), size()));
for (QQuickItem *childItem : parentItem->childItems()) {
if (!nodeInstanceServer()->hasInstanceForObject(childItem)) {
QRectF transformedRect = childItem->mapRectToItem(parentItem, boundingRectWithStepChilds(childItem));
if (isRectangleSane(transformedRect))
boundingRect = boundingRect.united(transformedRect);
}
}
if (boundingRect.isEmpty())
QRectF{0, 0, 640, 480};
return boundingRect;
}
void QuickItemNodeInstance::resetHorizontal()
{
setPropertyVariant("x", m_x);
if (m_width > 0.0) {
setPropertyVariant("width", m_width);
} else {
setPropertyVariant("width", quickItem()->implicitWidth());
}
}
void QuickItemNodeInstance::resetVertical()
{
setPropertyVariant("y", m_y);
if (m_height > 0.0) {
setPropertyVariant("height", m_height);
} else {
setPropertyVariant("height", quickItem()->implicitHeight());
}
}
QList<ServerNodeInstance> QuickItemNodeInstance::childItemsForChild(QQuickItem *item) const
{
QList<ServerNodeInstance> instanceList;
if (item) {
foreach (QQuickItem *childItem, item->childItems())
{
if (childItem && nodeInstanceServer()->hasInstanceForObject(childItem)) {
instanceList.append(nodeInstanceServer()->instanceForObject(childItem));
} else {
instanceList.append(childItemsForChild(childItem));
}
}
}
return instanceList;
}
static void repositioning(QQuickItem *item)
{
if (!item)
return;
// QQmlBasePositioner *positioner = qobject_cast<QQmlBasePositioner*>(item);
// if (positioner)
// positioner->rePositioning();
if (item->parentItem())
repositioning(item->parentItem());
}
void QuickItemNodeInstance::refresh()
{
repositioning(quickItem());
}
bool QuickItemNodeInstance::anyItemHasContent(QQuickItem *quickItem)
{
if (quickItem->flags().testFlag(QQuickItem::ItemHasContents))
return true;
foreach (QQuickItem *childItem, quickItem->childItems()) {
if (anyItemHasContent(childItem))
return true;
}
return false;
}
bool QuickItemNodeInstance::childItemsHaveContent(QQuickItem *quickItem)
{
foreach (QQuickItem *childItem, quickItem->childItems()) {
if (anyItemHasContent(childItem))
return true;
}
return false;
}
static bool instanceIsValidLayoutable(const ObjectNodeInstance::Pointer &instance, const PropertyName &propertyName)
{
return instance && instance->isLayoutable() && !instance->ignoredProperties().contains(propertyName);
}
void QuickItemNodeInstance::reparent(const ObjectNodeInstance::Pointer &oldParentInstance, const PropertyName &oldParentProperty, const ObjectNodeInstance::Pointer &newParentInstance, const PropertyName &newParentProperty)
{
if (instanceIsValidLayoutable(oldParentInstance, oldParentProperty)) {
setInLayoutable(false);
setMovable(true);
}
ObjectNodeInstance::reparent(oldParentInstance, oldParentProperty, newParentInstance, newParentProperty);
if (instanceIsValidLayoutable(newParentInstance, newParentProperty)) {
setInLayoutable(true);
setMovable(false);
}
if (instanceIsValidLayoutable(oldParentInstance, oldParentProperty) && !instanceIsValidLayoutable(newParentInstance, newParentProperty)) {
if (!hasBindingForProperty("x"))
setPropertyVariant("x", x());
if (!hasBindingForProperty("y"))
setPropertyVariant("y", y());
}
if (quickItem()->parentItem()) {
refresh();
updateDirtyNode(quickItem());
if (instanceIsValidLayoutable(oldParentInstance, oldParentProperty))
oldParentInstance->refreshLayoutable();
if (instanceIsValidLayoutable(newParentInstance, newParentProperty))
newParentInstance->refreshLayoutable();
}
}
void QuickItemNodeInstance::setPropertyVariant(const PropertyName &name, const QVariant &value)
{
if (ignoredProperties().contains(name))
return;
if (name == "state" && isRootNodeInstance())
return; // states on the root item are only set by us
if (name == "height") {
m_height = value.toDouble();
if (value.isValid())
m_hasHeight = true;
else
m_hasHeight = false;
}
if (name == "width") {
m_width = value.toDouble();
if (value.isValid())
m_hasWidth = true;
else
m_hasWidth = false;
}
if (name == "x")
m_x = value.toDouble();
if (name == "y")
m_y = value.toDouble();
ObjectNodeInstance::setPropertyVariant(name, value);
refresh();
if (isInLayoutable())
parentInstance()->refreshLayoutable();
}
void QuickItemNodeInstance::setPropertyBinding(const PropertyName &name, const QString &expression)
{
if (ignoredProperties().contains(name))
return;
if (name == "state" && isRootNodeInstance())
return; // states on the root item are only set by us
if (name.startsWith("anchors.") && isRootNodeInstance())
return;
ObjectNodeInstance::setPropertyBinding(name, expression);
refresh();
/* Evaluate properties of the root item in the context of the dummy context if they contain parent.
* This is done manually because we cannot "overwrite" the parent property
*/
if (isRootNodeInstance() && expression.contains(QLatin1String("parent."))) {
QQmlExpression qmlContextExpression(context(), nodeInstanceServer()->dummyContextObject(), expression);
QVariant value = qmlContextExpression.evaluate();
setPropertyVariant(name, value);
}
if (isInLayoutable())
parentInstance()->refreshLayoutable();
}
QVariant QuickItemNodeInstance::property(const PropertyName &name) const
{
if (ignoredProperties().contains(name))
return QVariant();
if (name == "visible")
return quickItem()->isVisible();
return ObjectNodeInstance::property(name);
}
void QuickItemNodeInstance::resetProperty(const PropertyName &name)
{
if (ignoredProperties().contains(name))
return;
if (name == "height") {
m_hasHeight = false;
m_height = 0.0;
}
if (name == "width") {
m_hasWidth = false;
m_width = 0.0;
}
if (name == "x")
m_x = 0.0;
if (name == "y")
m_y = 0.0;
DesignerSupport::resetAnchor(quickItem(), QString::fromUtf8(name));
if (name == "anchors.fill") {
resetHorizontal();
resetVertical();
} else if (name == "anchors.centerIn") {
resetHorizontal();
resetVertical();
} else if (name == "anchors.top") {
resetVertical();
} else if (name == "anchors.left") {
resetHorizontal();
} else if (name == "anchors.right") {
resetHorizontal();
} else if (name == "anchors.bottom") {
resetVertical();
} else if (name == "anchors.horizontalCenter") {
resetHorizontal();
} else if (name == "anchors.verticalCenter") {
resetVertical();
} else if (name == "anchors.baseline") {
resetVertical();
}
ObjectNodeInstance::resetProperty(name);
if (isInLayoutable())
parentInstance()->refreshLayoutable();
}
bool QuickItemNodeInstance::isAnchoredByChildren() const
{
return DesignerSupport::areChildrenAnchoredTo(quickItem(), quickItem());
}
bool QuickItemNodeInstance::hasAnchor(const PropertyName &name) const
{
return DesignerSupport::hasAnchor(quickItem(), QString::fromUtf8(name));
}
static bool isValidAnchorName(const PropertyName &name)
{
static PropertyNameList anchorNameList({"anchors.top",
"anchors.left",
"anchors.right",
"anchors.bottom",
"anchors.verticalCenter",
"anchors.horizontalCenter",
"anchors.fill",
"anchors.centerIn",
"anchors.baseline"});
return anchorNameList.contains(name);
}
QPair<PropertyName, ServerNodeInstance> QuickItemNodeInstance::anchor(const PropertyName &name) const
{
if (!isValidAnchorName(name) || !DesignerSupport::hasAnchor(quickItem(), QString::fromUtf8(name)))
return ObjectNodeInstance::anchor(name);
QPair<QString, QObject*> nameObjectPair =
DesignerSupport::anchorLineTarget(quickItem(), QString::fromUtf8(name), context());
QObject *targetObject = nameObjectPair.second;
PropertyName targetName = nameObjectPair.first.toUtf8();
while (targetObject) {
if (nodeInstanceServer()->hasInstanceForObject(targetObject))
return {targetName, nodeInstanceServer()->instanceForObject(targetObject)};
else
targetObject = parentObject(targetObject);
}
return ObjectNodeInstance::anchor(name);
}
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;
}
QQuickItem *QuickItemNodeInstance::quickItem() const
{
if (object() == nullptr)
return nullptr;
return static_cast<QQuickItem*>(object());
}
} // namespace Internal
} // namespace QmlDesigner