Question

我正在尝试为我的Qt项目使用土耳其语翻译文件。我使用Qt Linguist生成.ts文件。问题是当我在我的应用程序中加载翻译文件时，每当我点击QMenuBar的任何项目时，我都会遇到分段错误。

我还有一个上下文菜单，它是用mainwindow中GraphicsView的contextMenuEvent触发的。当我尝试执行以下行时，程序会出现分段错误。

mContextMenu->exec(event->globalPos());

mContextMenu是一个QMenu *，exec返回一个QAction *。基本上我猜想当翻译属于QAction时会出现这个问题。当我翻译toolButtons的工具提示时，我看到了同样的问题。我该如何处理QActions和工具提示的翻译？

Answer 1

我正在向mContextMenu添加一些操作，如下所示：

    void RadarView::prepareMainMenu() {
mContextMenu = new QMenu();
//showLineAction->setShortcut(QKeySequence("Alt+Shift+L"));
mpStartRulerAction = new QAction(QObject::tr("Start Ruler"), this);
mContextMenu->addAction(mpStartRulerAction);
connect(mpStartRulerAction, SIGNAL(triggered()), this,
        SLOT(menuStartRulerClicked()));
mpStartRulerAction->setProperty("TYPEVIEW", MV_StartRuler);

mpEndRulerAction = new QAction(QObject::tr("End Ruler"), this);
mContextMenu->addAction(mpEndRulerAction);
connect(mpEndRulerAction, SIGNAL(triggered()), this, SLOT(menuEndRulerClicked()));
mpEndRulerAction->setProperty("TYPEVIEW", MV_EndRuler);

mpCriticalRegionAction = new QAction(QObject::tr("Critical Region"), this);
mContextMenu->addAction(mpCriticalRegionAction);
connect(mpCriticalRegionAction, SIGNAL(triggered()), this, SLOT(menuDefineCriticalRegionClicked()));
mpCriticalRegionAction->setProperty("TYPEVIEW", MV_Critical_Region);

mpAScopeAction = new QAction(QObject::tr("A-Scope Line"), this);
mContextMenu->addAction(mpAScopeAction);
connect(mpAScopeAction, SIGNAL(triggered()), this, SLOT(menuAddAScopeLine()));
mpAScopeAction->setProperty("TYPEVIEW", MV_A_Scope);

}

图形视图的上下文菜单事件实现如下：

    void RadarView::contextMenuEvent(QContextMenuEvent * event) {
LOGGER_START
//check if the item has its own  context menu...
QList<QGraphicsItem*> items = this->items(event->pos());

if (items.size() != 0) {
    bool isValid = true;
    for (int i = 0; i < items.size(); ++i) {
        QGraphicsRulerLineItem *rulerLineItem = NULL;
        rulerLineItem = dynamic_cast<QGraphicsRulerLineItem*> (items[i]);
        if (rulerLineItem != NULL || dynamic_cast<AScopeLineItem*> (items[i]) || dynamic_cast<PpiTargetItem*> (items[i])){
            isValid = false;
        }
        else {
            PpiPlotItem *targetItem = NULL;
            targetItem = dynamic_cast<PpiPlotItem*> (items[i]);
            if (targetItem != NULL) {
                isValid = false;
                if (currentVisibleMenuItems.contains(0)) {
                    startItem = targetItem;
                } else if (currentVisibleMenuItems.contains(1)) {
                    endItem = targetItem;
                }
            }
        }
    }

    if (isValid == true) {

        if(currentVisibleMenuItems.size() ==0)
            return;
        //Get last clicked Position.
        mLastClickedPos = event->pos();
        //show  menu of RadarView...
        mpRightClickAction = mContextMenu->exec(event->globalPos());
    } else {
        QGraphicsView::contextMenuEvent(event);
    }

}

LOGGER_END

}

Answer 2

当我使用QApplication而不是继承QApplication的自定义类时，我解决了上面描述的问题。在自定义类的内部，实现了bool QApplication :: notify（QObject * receiver，QEvent * e）功能。当我直接使用QApplication时，所有翻译都被正确加载，并且没有关于QAction项目和工具提示的问题。

使用QAction和setToolTip（）时的Qt本地化问题

2 个答案: