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Handles right clicking on the tree of the data sources...
Alexandre Leroux -
r143:7b4ea0e1482b
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@@ -1,34 +1,38
1 1 #ifndef SCIQLOP_DATASOURCEWIDGET_H
2 2 #define SCIQLOP_DATASOURCEWIDGET_H
3 3
4 4 #include <QWidget>
5 5
6 6 namespace Ui {
7 7 class DataSourceWidget;
8 8 } // Ui
9 9
10 10 class DataSourceItem;
11 11
12 12 /**
13 13 * @brief The DataSourceWidget handles the graphical representation (as a tree) of the data sources
14 14 * attached to SciQlop.
15 15 */
16 16 class DataSourceWidget : public QWidget {
17 17 Q_OBJECT
18 18
19 19 public:
20 20 explicit DataSourceWidget(QWidget *parent = 0);
21 21
22 22 public slots:
23 23 /**
24 24 * Adds a data source. An item associated to the data source is created and then added to the
25 25 * representation tree
26 26 * @param dataSource the data source to add. The pointer has to be not null
27 27 */
28 28 void addDataSource(DataSourceItem *dataSource) noexcept;
29 29
30 30 private:
31 31 Ui::DataSourceWidget *ui;
32
33 private slots:
34 /// Slot called when right clicking on an item in the tree (displays a menu)
35 void onTreeMenuRequested(const QPoint &pos) noexcept;
32 36 };
33 37
34 38 #endif // SCIQLOP_DATASOURCEWIDGET_H
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@@ -1,52 +1,72
1 1 #include <DataSource/DataSourceWidget.h>
2 2
3 3 #include <ui_DataSourceWidget.h>
4 4
5 5 #include <DataSource/DataSourceItem.h>
6 6 #include <DataSource/DataSourceTreeWidgetItem.h>
7 7
8 #include <QMenu>
9
8 10 namespace {
9 11
10 12 /// Number of columns displayed in the tree
11 13 const auto TREE_NB_COLUMNS = 1;
12 14
13 15 /// Header labels for the tree
14 16 const auto TREE_HEADER_LABELS = QStringList{QObject::tr("Name")};
15 17
16 18 /**
17 19 * Creates the item associated to a data source
18 20 * @param dataSource the data source for which to create the item
19 21 * @return the new item
20 22 */
21 23 DataSourceTreeWidgetItem *createTreeWidgetItem(DataSourceItem *dataSource)
22 24 {
23 25 // Creates item for the data source
24 26 auto item = new DataSourceTreeWidgetItem{dataSource};
25 27
26 28 // Generates items for the children of the data source
27 29 for (auto i = 0; i < dataSource->childCount(); ++i) {
28 30 item->addChild(createTreeWidgetItem(dataSource->child(i)));
29 31 }
30 32
31 33 return item;
32 34 }
33 35
34 36 } // namespace
35 37
36 38 DataSourceWidget::DataSourceWidget(QWidget *parent) : QWidget{parent}, ui{new Ui::DataSourceWidget}
37 39 {
38 40 ui->setupUi(this);
39 41
40 42 // Set tree properties
41 43 ui->treeWidget->setColumnCount(TREE_NB_COLUMNS);
42 44 ui->treeWidget->setHeaderLabels(TREE_HEADER_LABELS);
45 ui->treeWidget->setContextMenuPolicy(Qt::CustomContextMenu);
46
47 // Connection to show a menu when right clicking on the tree
48 connect(ui->treeWidget, &QTreeWidget::customContextMenuRequested, this,
49 &DataSourceWidget::onTreeMenuRequested);
43 50 }
44 51
45 52 void DataSourceWidget::addDataSource(DataSourceItem *dataSource) noexcept
46 53 {
47 54 // Creates the item associated to the source and adds it to the tree widget. The tree widget
48 55 // takes the ownership of the item
49 56 if (dataSource) {
50 57 ui->treeWidget->addTopLevelItem(createTreeWidgetItem(dataSource));
51 58 }
52 59 }
60
61 void DataSourceWidget::onTreeMenuRequested(const QPoint &pos) noexcept
62 {
63 // Retrieves the selected item in the tree, and build the menu from its actions
64 if (auto selectedItem = dynamic_cast<DataSourceTreeWidgetItem *>(ui->treeWidget->itemAt(pos))) {
65 QMenu treeMenu{};
66 treeMenu.addActions(selectedItem->actions());
67
68 if (!treeMenu.isEmpty()) {
69 treeMenu.exec(mapToGlobal(pos));
70 }
71 }
72 }
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