diff options
Diffstat (limited to 'src/plugins/qmldesigner/core/model/bindingproperty.cpp')
-rw-r--r-- | src/plugins/qmldesigner/core/model/bindingproperty.cpp | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/src/plugins/qmldesigner/core/model/bindingproperty.cpp b/src/plugins/qmldesigner/core/model/bindingproperty.cpp new file mode 100644 index 0000000000..b258bb2cdd --- /dev/null +++ b/src/plugins/qmldesigner/core/model/bindingproperty.cpp @@ -0,0 +1,200 @@ +/************************************************************************** +** +** This file is part of Qt Creator +** +** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). +** +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** Commercial Usage +** +** Licensees holding valid Qt Commercial licenses may use this file in +** accordance with the Qt Commercial License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Nokia. +** +** GNU Lesser General Public License Usage +** +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at http://qt.nokia.com/contact. +** +**************************************************************************/ + +#include "bindingproperty.h" +#include "nodeabstractproperty.h" +#include "nodeproperty.h" +#include "internalproperty.h" +#include "internalbindingproperty.h" +#include "invalidmodelnodeexception.h" +#include "invalidpropertyexception.h" +#include "invalidargumentexception.h" +#include "internalnode_p.h" +#include "model.h" +#include "model_p.h" +namespace QmlDesigner { + +BindingProperty::BindingProperty() +{ +} + +BindingProperty::BindingProperty(const BindingProperty &property, AbstractView *view) + : AbstractProperty(property.name(), property.internalNode(), property.model(), view) +{ +} + + +BindingProperty::BindingProperty(const QString &propertyName, const Internal::InternalNodePointer &internalNode, Model* model, AbstractView *view) + : AbstractProperty(propertyName, internalNode, model, view) +{ +} + + +void BindingProperty::setExpression(const QString &expression) +{ + if (!isValid()) + throw InvalidModelNodeException(__LINE__, __FUNCTION__, __FILE__); + + if (name() == "id") { // the ID for a node is independent of the state, so it has to be set with ModelNode::setId + throw InvalidPropertyException(__LINE__, __FUNCTION__, __FILE__, name()); + } + + if (expression.isEmpty()) + throw InvalidArgumentException(__LINE__, __FUNCTION__, __FILE__, name()); + + if (internalNode()->hasProperty(name())) { //check if oldValue != value + Internal::InternalProperty::Pointer internalProperty = internalNode()->property(name()); + if (internalProperty->isBindingProperty() + && internalProperty->toBindingProperty()->expression() == expression) + + return; + } + + if (internalNode()->hasProperty(name()) && !internalNode()->property(name())->isBindingProperty()) + model()->m_d->removeProperty(internalNode()->property(name())); + + model()->m_d->setBindingProperty(internalNode(), name(), expression); +} + +QString BindingProperty::expression() const +{ + if (internalNode()->hasProperty(name()) + && internalNode()->property(name())->isBindingProperty()) + return internalNode()->bindingProperty(name())->expression(); + + return QString(); +} + +BindingProperty& BindingProperty::operator= (const QString &expression) +{ + setExpression(expression); + + return *this; +} + +static ModelNode resolveBinding(const QString &binding, ModelNode currentNode, AbstractView* view) +{ + int i = 0; + QString element = binding.split(".").at(0); + while (!element.isEmpty()) + { + if (element == "parent") { + if (currentNode.hasParentProperty()) + currentNode = currentNode.parentProperty().toNodeAbstractProperty().parentModelNode(); + else + return ModelNode(); //binding not valid + } else if (currentNode.hasProperty(element)) { + if (currentNode.property(element).isNodeProperty()) + currentNode = currentNode.nodeProperty(element).modelNode(); + else + return ModelNode(); //binding not valid + } else { + currentNode = view->modelNodeForId(element); //id + } + i++; + if (i < binding.split(".").count()) + element = binding.split(".").at(i); + else + element = ""; + } + return currentNode; + +} + +ModelNode BindingProperty::resolveToModelNode() const +{ + if (!isValid()) + throw InvalidModelNodeException(__LINE__, __FUNCTION__, __FILE__); + + return resolveBinding(expression(), parentModelNode(), view()); +} + +AbstractProperty BindingProperty::resolveToProperty() const +{ + if (!isValid()) + throw InvalidModelNodeException(__LINE__, __FUNCTION__, __FILE__); + + QString binding = expression(); + ModelNode node = parentModelNode(); + QString element; + if (binding.contains(".")) { + element = binding.split(".").last(); + QString nodeBinding = binding; + nodeBinding.chop(element.length()); + node = resolveBinding(nodeBinding, parentModelNode(), view()); + } else { + element = binding; + } + + if (node.isValid()) + return node.property(element); + else + return AbstractProperty(); +} + +void BindingProperty::setDynamicTypeNameAndExpression(const QString &typeName, const QString &expression) + +{ + if (!isValid()) + throw InvalidModelNodeException(__LINE__, __FUNCTION__, __FILE__); + + if (name() == "id") { // the ID for a node is independent of the state, so it has to be set with ModelNode::setId + throw InvalidPropertyException(__LINE__, __FUNCTION__, __FILE__, name()); + } + + if (expression.isEmpty()) + throw InvalidArgumentException(__LINE__, __FUNCTION__, __FILE__, name()); + + if (typeName.isEmpty()) { + throw InvalidArgumentException(__LINE__, __FUNCTION__, __FILE__, name()); + } + + if (internalNode()->hasProperty(name())) { //check if oldValue != value + Internal::InternalProperty::Pointer internalProperty = internalNode()->property(name()); + if (internalProperty->isBindingProperty() + && internalProperty->toBindingProperty()->expression() == expression + && internalProperty->toBindingProperty()->dynamicTypeName() == typeName) + + return; + } + + if (internalNode()->hasProperty(name()) && !internalNode()->property(name())->isBindingProperty()) + model()->m_d->removeProperty(internalNode()->property(name())); + + model()->m_d->setDynamicBindingProperty(internalNode(), name(), typeName, expression); +} + +BindingProperty& BindingProperty::operator= (const QPair<QString, QString> &typeExpressionPair) +{ + setDynamicTypeNameAndExpression(typeExpressionPair.first, typeExpressionPair.second); + + return *this; +} + +} // namespace QmlDesigner |