307 lines
8.9 KiB
C++
307 lines
8.9 KiB
C++
/************************************************************************
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**
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** @file vpropertymodel.cpp
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** @author hedgeware <internal(at)hedgeware.net>
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** @date
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**
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** @brief
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** @copyright
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** All rights reserved. This program and the accompanying materials
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** are made available under the terms of the GNU Lesser General Public License
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** (LGPL) version 2.1 which accompanies this distribution, and is available at
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** http://www.gnu.org/licenses/lgpl-2.1.html
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**
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** This library is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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** Lesser General Public License for more details.
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**
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*************************************************************************/
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#include "vpropertymodel.h"
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#include <QBrush>
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#include "vpropertyset.h"
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using namespace VPE;
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#include "vpropertymodel_p.h"
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VPropertyModel::VPropertyModel(VPropertyModelPrivate *d, QObject *parent)
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: QAbstractItemModel(parent), d_ptr(d)
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{
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}
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VPropertyModel::VPropertyModel(QObject * parent) :
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QAbstractItemModel(parent), d_ptr(new VPropertyModelPrivate())
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{
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}
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VPropertyModel::~VPropertyModel()
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{
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if(d_ptr->Properties)
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delete d_ptr->Properties;
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delete d_ptr;
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}
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//! Adds the property to the model and attaches it to the parentid
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bool VPropertyModel::addProperty(VProperty* property, const QString& id, const QString &parentid, bool emitsignals)
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{
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if(!property)
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return false;
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if(!d_ptr->Properties) // If not existant, create property set
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d_ptr->Properties = new VPropertySet();
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if(emitsignals) {
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VProperty* tmpParent = getProperty(parentid);
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int tmpRow = tmpParent != nullptr ? tmpParent->getRowCount() : d_ptr->Properties->getRootPropertyCount();
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beginInsertRows((tmpParent != nullptr ? getIndexFromProperty(tmpParent) : QModelIndex()), tmpRow, tmpRow);
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}
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d_ptr->Properties->addProperty(property, id, parentid);
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if(emitsignals)
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endInsertRows();
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return true;
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}
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//! Creates a property and adds it to the model
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VProperty* VPropertyModel::createProperty(const QString& id, const QString& name, const QString& parentid, const QVariant& data)
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{
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VProperty* tmpProp = new VProperty(name);
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tmpProp->setValue(data);
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if(tmpProp && addProperty(tmpProp, id, parentid))
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return tmpProp;
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else
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return nullptr;
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}
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//! Gets a property by it's ID
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VProperty* VPropertyModel::getProperty(const QString& id)
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{
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return d_ptr->Properties != nullptr ? d_ptr->Properties->getProperty(id) : nullptr;
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}
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//! Returns the model index at row/column
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QModelIndex VPropertyModel::index(int row, int column, const QModelIndex& parent) const
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{
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if (d_ptr->Properties == nullptr || (parent.isValid() && parent.column() > 1))
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return QModelIndex();
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if(parent.isValid()) {
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// Get the parent index
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VProperty* parentItem = getProperty(parent);
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if(parentItem) {
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VProperty* childItem = parentItem->getChild(row);
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if (childItem)
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return createIndex(row, column, childItem);
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}
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} else if(row >= 0 && row < d_ptr->Properties->count()) {
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return createIndex(row, column, d_ptr->Properties->getRootProperty(row));
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}
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return QModelIndex();
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}
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//! Returns the parent of one model index
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QModelIndex VPropertyModel::parent ( const QModelIndex & index ) const
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{
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if (!index.isValid())
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return QModelIndex();
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VProperty* childItem = getProperty(index);
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if(childItem) {
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VProperty* parentItem = childItem->getParent();
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if(parentItem) {
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VProperty* grandParentItem = parentItem->getParent();
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int parents_row = grandParentItem != nullptr ? grandParentItem->getChildRow(parentItem) : d_ptr->Properties->getRootProperties().indexOf(parentItem);
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if(parents_row >= 0)
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return createIndex(parents_row, 0, parentItem);
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}
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}
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return QModelIndex();
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}
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//! Returns the item flags for the given index
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Qt::ItemFlags VPropertyModel::flags (const QModelIndex& index) const
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{
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VProperty* tmpProperty = getProperty(index);
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if(!tmpProperty)
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return Qt::NoItemFlags;
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else
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return tmpProperty->flags(index.column());
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}
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//! Sets the role data for the item at index to value
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bool VPropertyModel::setData (const QModelIndex& index, const QVariant& value, int role)
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{
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VProperty* tmpProperty = getProperty(index);
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if(index.column() == 1 && tmpProperty) {
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bool tmpHasChanged = tmpProperty->setData(value, role);
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if(tmpProperty->getUpdateParent() && tmpHasChanged) { // If neccessary, update the parent as well
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QModelIndex tmpParentIndex = parent(index);
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emit dataChanged(tmpParentIndex, tmpParentIndex);
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}
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if(tmpHasChanged)
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emit onDataChangedByEditor(tmpProperty);
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}
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return true;
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}
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//! Returns the data of an model index
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QVariant VPropertyModel::data ( const QModelIndex & index, int role ) const
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{
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VProperty* tmpProperty = getProperty(index);
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if(!tmpProperty)
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return QVariant();
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else
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return tmpProperty->data(index.column(), role);
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}
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QVariant VPropertyModel::headerData (int section, Qt::Orientation orientation, int role) const
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{
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if(orientation == Qt::Horizontal && role == Qt::DisplayRole) {
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// Header data
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if (section == 0) return d_ptr->HeadlineProperty;
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else if (section == 1) return d_ptr->HeadlineValue;
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}
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else if(role == Qt::DisplayRole)
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return QVariant(section);
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return QVariant();
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}
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//! Returns the number of rows
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int VPropertyModel::rowCount ( const QModelIndex & parent ) const
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{
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if(parent.isValid()) {
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VProperty* tmpParent = getProperty(parent);
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if(tmpParent)
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return tmpParent->getRowCount();
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}
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// Return the root property count
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if(d_ptr->Properties)
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return d_ptr->Properties->getRootPropertyCount();
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return 0;
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}
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//! Returns the number of columns
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int VPropertyModel::columnCount ( const QModelIndex & parent) const
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{
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Q_UNUSED(parent);
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return 2;
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}
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//! Gets a property by its ModelIndex
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VProperty* VPropertyModel::getProperty(const QModelIndex &index) const
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{
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if (index.isValid()) {
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VProperty* prop = static_cast<VProperty*>(index.internalPointer());
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if (prop)
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return prop;
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}
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return nullptr;
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}
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QString VPropertyModel::getPropertyID(VProperty *prop) const
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{
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return d_ptr->Properties != nullptr ? d_ptr->Properties->getPropertyID(prop) : QString();
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}
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QModelIndex VPropertyModel::getIndexFromProperty(VProperty* property, int column) const
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{
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if (!property || column > columnCount() || column < 0)
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return QModelIndex();
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VProperty* parentItem = property->getParent();
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int row = 0;
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if(parentItem) {
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row = parentItem->getChildRow(property);
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}
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return createIndex(row, column, property);
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}
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void VPropertyModel::onDataChangedByModel(VProperty* property)
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{
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QModelIndex tmpIndex = getIndexFromProperty(property, 1);
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if(tmpIndex.isValid())
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{
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emit dataChanged(tmpIndex, tmpIndex);
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emit onDataChangedByEditor(property);
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}
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}
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const VPropertySet *VPropertyModel::getPropertySet() const
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{
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return d_ptr->Properties;
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}
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void VPropertyModel::clear(bool emit_signals)
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{
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setPropertySet(nullptr, emit_signals);
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}
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VPropertySet *VPropertyModel::takePropertySet(VPropertySet *new_property_set, bool emit_signals)
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{
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VPropertySet* tmpOldPropertySet = d_ptr->Properties;
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if(emit_signals) emit beginResetModel();
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d_ptr->Properties = new_property_set;
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if(emit_signals) emit endResetModel();
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return tmpOldPropertySet;
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}
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void VPropertyModel::setPropertySet(VPropertySet *property_set, bool emit_signals)
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{
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VPropertySet* tmpOldPropertySet = takePropertySet(property_set, emit_signals);
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if(tmpOldPropertySet)
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delete tmpOldPropertySet;
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}
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VProperty *VPropertyModel::takeProperty(const QString &id)
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{
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QModelIndex tmpIndex = getIndexFromProperty(getProperty(id));
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if(d_ptr->Properties && tmpIndex.isValid()) {
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beginRemoveRows(tmpIndex.parent(), tmpIndex.row(), tmpIndex.row());
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VProperty* tmpProp = d_ptr->Properties->takeProperty(id);
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endRemoveRows();
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return tmpProp;
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}
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return nullptr;
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}
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void VPropertyModel::removeProperty(const QString &id)
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{
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QModelIndex tmpIndex = getIndexFromProperty(getProperty(id));
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if(d_ptr->Properties && tmpIndex.isValid()) {
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beginRemoveRows(tmpIndex.parent(), tmpIndex.row(), tmpIndex.row());
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d_ptr->Properties->removeProperty(id);
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endRemoveRows();
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}
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}
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