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Example of showing different context menu for items in a QTreeWidget
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| #include "main.h" | |
| int main(int argc, char** argv) | |
| { | |
| QApplication app(argc, argv); | |
| MyTreeWidget w; | |
| w.show(); | |
| // Add test items. | |
| w.addTopLevelItem(new QTreeWidgetItem(QStringList("A (type 1)"), | |
| ItemType1)); | |
| w.addTopLevelItem(new QTreeWidgetItem(QStringList("B (type 1)"), | |
| ItemType1)); | |
| w.addTopLevelItem(new QTreeWidgetItem(QStringList("C (type 2)"), | |
| ItemType2)); | |
| w.addTopLevelItem(new QTreeWidgetItem(QStringList("D (type 2)"), | |
| ItemType2)); | |
| app.exec(); | |
| return 0; | |
| } |
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| #include <QApplication> | |
| #include <QMenu> | |
| #include <QMouseEvent> | |
| #include <QTreeWidget> | |
| #include <QTreeWidgetItem> | |
| // Qt documentation states that user types should begin at this value. | |
| static const int ItemType1 = QTreeWidgetItem::UserType; | |
| static const int ItemType2 = QTreeWidgetItem::UserType + 1; | |
| class MyTreeWidget : public QTreeWidget | |
| { | |
| Q_OBJECT; | |
| public: | |
| MyTreeWidget() | |
| { | |
| setContextMenuPolicy(Qt::CustomContextMenu); | |
| connect(this, | |
| SIGNAL(customContextMenuRequested(const QPoint&)), | |
| SLOT(onCustomContextMenuRequested(const QPoint&))); | |
| } | |
| private slots: | |
| void onCustomContextMenuRequested(const QPoint& pos) { | |
| printf("hi\n"); | |
| QTreeWidgetItem* item = itemAt(pos); | |
| if (item) { | |
| // Note: We must map the point to global from the viewport to | |
| // account for the header. | |
| showContextMenu(item, viewport()->mapToGlobal(pos)); | |
| } | |
| } | |
| void showContextMenu(QTreeWidgetItem* item, const QPoint& globalPos) { | |
| QMenu menu; | |
| switch (item->type()) { | |
| case ItemType1: | |
| menu.addAction("This is a type 1"); | |
| break; | |
| case ItemType2: | |
| menu.addAction("This is a type 2"); | |
| break; | |
| } | |
| menu.exec(globalPos); | |
| } | |
| }; | |
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