Qt setting text under tool button - qt

I want to show text for the tool button icons using setToolButtonStyle(Qt::ToolButtonTextUnderIcon);
I can see the text for actions directly added to Toolbar (Close & Save), but not for an action(Load) that is added to a QMenu in a Toolbutton. I have added this action in Qmenu to work it as a toggle with other actions(recent files).
I tried to set the text for the Toolbutton too using setText() and setWindowIconText(), but it doesn't work. This is how it looks right now.
Below is the code snippet for the same.
actionLoad = new QAction(QIcon(QString("%1/cn_open.png").arg(imageDir)),tr("Load"), this);
actionLoad->setShortcut(tr("Ctrl+L"));
actionLoad->setStatusTip(tr("Load the model"));
connect(actionLoad, SIGNAL(triggered()), this, SLOT(loadModelDlg()));
actionClose = new QAction(QIcon(QString("%1/cn_close.png").arg(imageDir)),tr("Close"), this);
actionClose->setShortcut(tr("Ctrl+X"));
actionClose->setStatusTip(tr("Close the Model"));
connect(actionClose, SIGNAL(triggered()), this, SLOT(closeModel()));
actionSave = new QAction(QIcon(QString("%1/cn_save.png").arg(imageDir)),tr("Save"), this);
actionSave->setShortcut(tr("Ctrl+S"));
actionSave->setStatusTip(tr("Save the Model"));
connect(actionSave, SIGNAL(triggered()), this, SLOT(saveModel()));
m_FileToolBar = addToolBar(tr("File"));
// Show text under the icon in toolbar
m_FileToolBar->setToolButtonStyle(Qt::ToolButtonTextUnderIcon);
// Add a menu for recent file items
m_FileMenu = new QMenu();
m_FileMenu->addAction(actionLoad); // Add load button as the first item
for (int i = 0; i < MaxRecentFiles; ++i)
m_FileMenu->addAction(recentFileActions[i]);
updateRecentFileActions();
// Create a tool button. Load button and recent files will be added as a drop down menu
m_FileToolButton = new QToolButton();
m_FileToolButton->setText(tr("Load")); // Not working
m_FileToolButton->setWindowIconText(tr("Load")); // Not working
m_FileToolButton->setMenu(m_FileMenu);
m_FileToolButton->setDefaultAction(actionLoad);
// This creates a dropdown arrow to click.
m_FileToolButton->setPopupMode(QToolButton::MenuButtonPopup);
m_FileToolBar->addWidget(m_FileToolButton);
// These actions show text under the icon
m_FileToolBar->addAction(actionClose);
m_FileToolBar->addAction(actionSave);
Any help to resolve this is appreciated.

Why don't you try something like that:
QToolBar bar;
QToolButton button;
button.setPopupMode(QToolButton::MenuButtonPopup);
button.setToolButtonStyle(Qt::ToolButtonTextUnderIcon);
QAction loadAction(QIcon(":/img/openfile"),"Load",&button);
button.addAction(&loadAction);
button.setDefaultAction(&loadAction);
QAction loadAction2("Load 2",&button);
button.addAction(&loadAction2);
bar.addWidget(&button);
bar.show();
I didn't use a QMenu as you can see above.

Related

QLabel as popup: Doesn't close when clicking outside

I'm using a QLabel as a popup to display HTML information when a cell is clicked in a QTableView. The following function is called with the row name and desired popup location when the table is clicked:
void DatabaseTableModel::showPopup (int rowIndex, const QPoint &location) const
{
QLabel *popup = new QLabel(data_[rowIndex].displayHtml(), 0, Qt::Popup);
popup->setTextFormat(Qt::RichText);
popup->setOpenExternalLinks(true);
popup->move(location);
popup->show();
}
The popup is displayed correctly at the right spot, and the HTML looks fine. On Mac with Qt 5.6, the popup closes fine when clicked outside the popup.
However, on Windows (using Qt 5.7), the popup doesn't close on a click, either inside or outside the popup. Any ideas on a fix?
I haven't seen any other answers to the question, but I found an answer on my own:
It seems that generic widget pop-ups have been obsoleted (in practice), but using it on a QDialog works OK. Here is the revised code:
void DatabaseTableModel::showPopup (int rowIndex, const QPoint &location) const {
QDialog *popup = new QDialog(0, Qt::Popup | Qt::FramelessWindowHint);
QVBoxLayout *layout = new QVBoxLayout;
QLabel *popupLabel = new QLabel(data_.value(rowIndex).displayHtml(), 0);
layout->addWidget(popupLabel);
popupLabel->setTextFormat(Qt::RichText);
popupLabel->setOpenExternalLinks(true);
popup->setLayout(layout);
popup->move(location);
popup->exec();
}
You should use QTooltip::showText. This supports HTML display and will close automatically. Tooltips are meant to display volatile information to users, QLabel is not.

QAction doesn't show QMenu

I'm creating my UI from Qt Designer and it generares this code:
toolBar = new QToolBar(MainWindow);
QIcon icon;
icon.addFile(QStringLiteral(":/main"), QSize(), QIcon::Normal, QIcon::Off);
MainWindow->addToolBar(Qt::TopToolBarArea, toolBar);
actionConvert = new QAction(MainWindow);
actionConvert->setObjectName(QStringLiteral("actionConvert"));
actionConvert->setIcon(icon);
toolBar->addAction(actionConvert);
Now, back in my frame code:
QMenu *menuAdd = new QMenu (this);
menuAdd->addAction (tr("&Files..."));
menuAdd->addAction (tr("&Directory..."));
ui->actionConvert->setMenu (menuAdd);
When I run the application I can see the qaction in the toolbar even the arrow pointing down, which indicates that there is a menu, but when I click it, the menu doesn't appear...any ideas?
There does not seem to be anything wrong with your example code.
It's possible that the reason you aren't seeing the menu is that you need to press and hold the button for a few seconds in order for the menu to appear. A single click will just execute the button's normal action.
See: QToolButton::ToolButtonPopupMode.
You should add menu with menuBar() method as in my case:
void MainWindow::ueInitMenu()
{
this->ueSetCodeRegisterPlacesAction(new QAction(tr("Places"),
this));
this->ueCodeRegisterPlacesAction()->setShortcut(tr("Ctrl+P"));
this->ueCodeRegisterPlacesAction()->setStatusTip(tr("Shows places code register"));
connect(this->ueCodeRegisterPlacesAction(),
SIGNAL(triggered()),
this,
SLOT(ueSlotShowPlacesView()));
this->ueSetCodeRegisterMenu(this->menuBar()->addMenu(tr("Code register")));
this->ueCodeRegisterMenu()->addAction(this->ueCodeRegisterPlacesAction());
} // ueInitMenu
especialy the line:
this->ueSetCodeRegisterMenu(this->menuBar()->addMenu(tr("Code register")));
so in your case:
this->menuBar()->addMenu(tr("System menu");
and then add actions. Also take a look at Menus Example.

How to programmatically close QMenu

I have pretty specific situation. I want to place a QAction into QToolbar and reach following behaviour:
Checkable QAction with icon.
Classic arrow on the right side which is used for showing menu
By pressing this arrow my QDialog should appears on screen instead of QMenu-like one
Now I'm a bit confused with implementing all this things together.
For now I've created QAction added it to toolbar and also created an empty QMenubecause I didn't get the idea of how to add the "dropdown" arrow another way.
So, I also connected my slot to QMenu aboutToShow() signal and now, I can create my dialog and exec() it just before QMenu shows. But here's the main problem appears: after I did everything with my dialog an click OK button QMenu trying to appear, but as it is empty it shows nothing and further actions become available only after I left-click somwhere to "close" this menu.
Is there any way to force QMenu not to show or can inherit from QMenu and reimplemnt its behaviour (I've tried to do such trick with exec() show() popup() methods of QMenu after subclassing from it, but none of them are being called when menu appears on the screen) ?
Here's the solution, which worked for me.
class QCustomMenu : public QMenu
{
Q_OBJECT
public:
QCustomMenu(QObject *parent = 0):QMenu(parent){};
};
In code:
QAction* myActionWithMenu = new QAction ( "ActionText", toolbar);
QCustomMenu* myMenu = new QCustomMenu(toolbar);
connect(myMenu, SIGNAL(aboutToShow()), this, SLOT(execMyMenu()));
execMyMenu() implementation:
void execMyMenu(){
m_activeMenu = (QCustomMenu*)sender(); // m_activeMenu -- private member of your head class, needs to point to active custom menu
QMyDialog* dlg = new QMyDialog();
// setup your dialog with needed information
dlg->exec();
// handle return information
m_myTimer = startTimer(10); // m_myTimer -- private member of your head(MainWindow or smth like that) class
}
Now we have to handle timerEvent and close our menu:
void MyHeadClass::timerEvent(QTimerEvent *event)
{
// Check if it is our "empty"-menu timer
if ( event->timerId()==m_myTimer )
{
m_activeMenu->close(); // closing empty menu
killTimer(m_myTimer); // deactivating timer
m_myTimer = 0; // seting timer identifier to zero
m_activeMenu = NULL; // as well as active menu pointer to NULL
}
}
It works great on every platform and does what I wanted.
Hope, this would help someone. I've spent week trying to find this solution.

How to undock tab with osgViewer from QTabWidget?

I want to undock a QWidget from a QTabWiget (is set as centralWidget). The tab contains some Open Scene Graph content (OpenGL Window). When removing the Tab from the list and putting it into a new Dialog Window (=> undocking from tab) the scene data seems to be corrupt. It works with "standard widgets" but the osg seems to forget the scene.
Surprisingly, undocking works when using a QDockWidget (scene is visible after undocking the window).
Anyone knows how to undock a tab without corrupting the osgViewer?
Code called for to undock from tab and show in new dialog window:
QWidget* gv = // points to an osgViewer in a qt widget
QDialog* dlg = new QDialog(this);
dlg->setWindowTitle("hello earth");
QHBoxLayout* pMainLay = new QHBoxLayout;
gv->setMinimumSize(100,100);
gv->setGeometry(100,100,300,300);
pMainLay->addWidget(gv);
dlg->setLayout(pMainLay);
ui->tabWidget->removeTab(0); // removes the tab at position 0 (docked window)
dlg->show(); // should show the undocked dialog
There is nothing to see in the new dialog. Did I missed something?
How to "copy" the osg view properly into a new widget/dialog? Should I use a composite viewer for this kind of task? It seems there is not even the empty osg view visible (no blue canvas)...
It could be that something's going screwy when you add the osgViewer to another widget before removing it from the QTabWidget. Changing the order might help.
QWidget* gv = // points to an osgViewer in a qt widget
ui->tabWidget->removeTab(0); // removes the tab at position 0 (docked window)
QDialog* dlg = new QDialog(this);
dlg->setWindowTitle("hello earth");
QHBoxLayout* pMainLay = new QHBoxLayout;
pMainLay->addWidget(gv);
dlg->setLayout(pMainLay);
dlg->show(); // should show the undocked dialog

Qt - Symbian Mobile - Soft key menus not displaying correctly

I create and show a QWebView with soft key options at the bottom. When I click "Options", a menu shows up, but it's tiny, black, and in the upper left hand corner (it should look like the standard blue soft keys and be directly above them). I followed this example.
//create webview
webView = new QWebView;
webView->setUrl(QString(":html/internal.html"));
//create menu
QAction *option1 = new QAction(tr("Back"), webView);
option1->setSoftKeyRole(QAction::PositiveSoftKey);
connect(option1, SIGNAL(triggered()), this, SLOT(deleteView()));
//create right softkey action to launch the "options" menu
QAction *option2 = new QAction(tr("Options"), webView);
option2->setSoftKeyRole(QAction::NegativeSoftKey);
connect(option2, SIGNAL(triggered(), this, SLOT(showMenu()));
QMenu *menuOptions = new QMenu(webView);
menuOptions->addAction(tr("Sub Menu 1"), this, SLOT(aboutView()));
menuOptions->addAction(tr("Sub Menu 2"), this, SLOT(aboutView()));
option2->setMenu(menuOptions);
//add softkey menus
QList < QAction* > softKeys;
softKeys.append(option1);
softKeys.append(option2);
webView->addActions(softKeys);
webView->show();
This example works well on simulator and also in phone. It is included in the QTDIR/examples/widgets folder since Qt 4.6.x

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