DataSourceWidget.cpp
124 lines
| 3.8 KiB
| text/x-c
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CppLexer
Alexandre Leroux
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r82 | #include <DataSource/DataSourceWidget.h> | ||
| #include <ui_DataSourceWidget.h> | ||||
| #include <DataSource/DataSourceItem.h> | ||||
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r477 | #include <DataSource/DataSourceTreeWidgetHelper.h> | ||
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r82 | #include <DataSource/DataSourceTreeWidgetItem.h> | ||
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r143 | #include <QMenu> | ||
| r1478 | namespace | |||
| { | ||||
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r82 | |||
| /// Number of columns displayed in the tree | ||||
| const auto TREE_NB_COLUMNS = 1; | ||||
| /// Header labels for the tree | ||||
| r1478 | const auto TREE_HEADER_LABELS = QStringList { QObject::tr("Name") }; | |||
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r82 | |||
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r83 | /** | ||
| * Creates the item associated to a data source | ||||
| * @param dataSource the data source for which to create the item | ||||
| * @return the new item | ||||
| */ | ||||
| r1478 | DataSourceTreeWidgetItem* createTreeWidgetItem(DataSourceItem* dataSource) | |||
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r83 | { | ||
| // Creates item for the data source | ||||
| r1478 | auto item = new DataSourceTreeWidgetItem { dataSource }; | |||
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r83 | // Generates items for the children of the data source | ||
| r1478 | std::for_each(dataSource->cbegin(), dataSource->cend(), | |||
| [&item](const std::unique_ptr<DataSourceItem>& child) { | ||||
| item->addChild(createTreeWidgetItem(child.get())); | ||||
| }); | ||||
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r83 | return item; | ||
| } | ||||
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r82 | } // namespace | ||
| r1478 | DataSourceWidget::DataSourceWidget(QWidget* parent) | |||
| : QWidget { parent } | ||||
| , ui { new Ui::DataSourceWidget } | ||||
| , m_Root { std::make_unique<DataSourceItem>( | ||||
| DataSourceItemType::NODE, QStringLiteral("Sources")) } | ||||
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r82 | { | ||
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r109 | ui->setupUi(this); | ||
| // Set tree properties | ||||
| ui->treeWidget->setColumnCount(TREE_NB_COLUMNS); | ||||
| ui->treeWidget->setHeaderLabels(TREE_HEADER_LABELS); | ||||
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r143 | ui->treeWidget->setContextMenuPolicy(Qt::CustomContextMenu); | ||
| // Connection to show a menu when right clicking on the tree | ||||
| connect(ui->treeWidget, &QTreeWidget::customContextMenuRequested, this, | ||||
| r1478 | &DataSourceWidget::onTreeMenuRequested); | |||
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r475 | |||
| // Connection to filter tree | ||||
| connect(ui->filterLineEdit, &QLineEdit::textChanged, this, &DataSourceWidget::filterChanged); | ||||
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r1034 | |||
| // First init | ||||
| updateTreeWidget(); | ||||
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r82 | } | ||
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r83 | |||
| r232 | DataSourceWidget::~DataSourceWidget() noexcept | |||
| { | ||||
| delete ui; | ||||
| } | ||||
| r1478 | void DataSourceWidget::addDataSource(DataSourceItem* dataSource) noexcept | |||
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r83 | { | ||
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r1035 | // Merges the data source (without taking its root) | ||
| r1478 | if (dataSource) | |||
| { | ||||
| std::for_each(std::cbegin(*dataSource), std::cend(*dataSource), | ||||
| [this](const auto& child) { this->m_Root->merge(*child.get()); }); | ||||
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r1035 | updateTreeWidget(); | ||
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r92 | } | ||
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r83 | } | ||
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r143 | |||
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r1034 | void DataSourceWidget::updateTreeWidget() noexcept | ||
| { | ||||
| ui->treeWidget->clear(); | ||||
| auto rootItem = createTreeWidgetItem(m_Root.get()); | ||||
| ui->treeWidget->addTopLevelItem(rootItem); | ||||
| rootItem->setExpanded(true); | ||||
| // Sorts tree | ||||
| ui->treeWidget->setSortingEnabled(true); | ||||
| ui->treeWidget->sortByColumn(0, Qt::AscendingOrder); | ||||
| } | ||||
| r1478 | void DataSourceWidget::filterChanged(const QString& text) noexcept | |||
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r475 | { | ||
| r1478 | auto validateItem = [&text](const DataSourceTreeWidgetItem& item) { | |||
| auto regExp = QRegExp { text, Qt::CaseInsensitive, QRegExp::Wildcard }; | ||||
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r477 | |||
| // An item is valid if any of its metadata validates the text filter | ||||
| auto itemMetadata = item.data()->data(); | ||||
| auto itemMetadataEnd = itemMetadata.cend(); | ||||
| auto acceptFilter | ||||
| r1478 | = [®Exp](const auto& variant) { return variant.toString().contains(regExp); }; | |||
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r477 | |||
| return std::find_if(itemMetadata.cbegin(), itemMetadataEnd, acceptFilter) | ||||
| r1478 | != itemMetadataEnd; | |||
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r477 | }; | ||
| // Applies filter on tree widget | ||||
| DataSourceTreeWidgetHelper::filter(*ui->treeWidget, validateItem); | ||||
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r475 | } | ||
| r1478 | void DataSourceWidget::onTreeMenuRequested(const QPoint& pos) noexcept | |||
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r143 | { | ||
| // Retrieves the selected item in the tree, and build the menu from its actions | ||||
| r1478 | if (auto selectedItem = dynamic_cast<DataSourceTreeWidgetItem*>(ui->treeWidget->itemAt(pos))) | |||
| { | ||||
| QMenu treeMenu {}; | ||||
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r143 | treeMenu.addActions(selectedItem->actions()); | ||
| r1478 | if (!treeMenu.isEmpty()) | |||
| { | ||||
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r655 | treeMenu.exec(QCursor::pos()); | ||
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r143 | } | ||
| } | ||||
| } | ||||
