ItemViewOverlayButtons Class Reference

Description

Definition at line 24 of file ItemViewOverlayButtons.h.

Inheritance diagram for ItemViewOverlayButtons:

Collaboration diagram for ItemViewOverlayButtons:

Public Types
using	FnGetActions = std::function< QList< QAction * >(const QModelIndex &, bool)>

Static Public Member Functions
static void	install (QAbstractItemView *view, FnGetActions fnGetActions)

Protected Member Functions
bool	eventFilter (QObject *obj, QEvent *event) override

Private Member Functions
	ItemViewOverlayButtons (QObject *parent)
void	installOverlay (const QModelIndex &index)
void	update ()
void	updateRecursive (const QModelIndex &index)

Private Attributes
FnGetActions	m_getActions
QAbstractItemView *	m_view

Member Typedef Documentation

FnGetActions

using ItemViewOverlayButtons::FnGetActions = std::function<QList<QAction*>(const QModelIndex&, bool)>

Definition at line 27 of file ItemViewOverlayButtons.h.

Constructor & Destructor Documentation

ItemViewOverlayButtons()

ItemViewOverlayButtons::ItemViewOverlayButtons ( QObject *  parent )

private

Definition at line 196 of file ItemViewOverlayButtons.cpp.

    : QObject(parent)
{
}

Referenced by install().

Member Function Documentation

eventFilter()

bool ItemViewOverlayButtons::eventFilter ( QObject *  obj, QEvent *  event  )

overrideprotected

Definition at line 180 of file ItemViewOverlayButtons.cpp.

{
    // F2 would start the editing. Since OverlayWidgets are an editor already (indexWidget uses the
    // editor internals), we remove the overlay at this place, so the view will properly open the
    // editor
    if (event->type() == QEvent::KeyPress) {
        auto* keyEvent = dynamic_cast<QKeyEvent*>(event);
        if (keyEvent->key() == Qt::Key_F2) {
            QModelIndex ci = m_view->currentIndex();
            if (ci.isValid() && ci.flags().testFlag(Qt::ItemIsEditable))
                m_view->setIndexWidget(ci, nullptr);
        }
    }
    return QObject::eventFilter(obj, event);
}

References m_view.

install()

void ItemViewOverlayButtons::install ( QAbstractItemView *  view, FnGetActions  fnGetActions  )

static

Definition at line 160 of file ItemViewOverlayButtons.cpp.

{
    auto* h = new ItemViewOverlayButtons(view);
    h->m_getActions = fnGetActions;
    h->m_view = view;
    auto* d = new ItemViewOverlayDelegate;
    view->setItemDelegate(d);
    view->installEventFilter(h);
    h->update();
 
    connect(d, &QAbstractItemDelegate::closeEditor, h, &ItemViewOverlayButtons::update);
 
    connect(view->model(), &QAbstractItemModel::modelReset, h, &ItemViewOverlayButtons::update,
            Qt::QueuedConnection);
    connect(view->model(), &QAbstractItemModel::rowsInserted, h, &ItemViewOverlayButtons::update,
            Qt::QueuedConnection); // Queued: important!
    connect(view->model(), &QAbstractItemModel::rowsRemoved, h, &ItemViewOverlayButtons::update,
            Qt::QueuedConnection); // Queued: important!
}

References ItemViewOverlayButtons(), and update().

Referenced by RealDataSelectorWidget::RealDataSelectorWidget(), SampleListView::SampleListView(), InstrumentLibraryEditor::execAdd(), and InstrumentLibraryEditor::execChoose().

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installOverlay()

void ItemViewOverlayButtons::installOverlay ( const QModelIndex &  index )

private

Definition at line 229 of file ItemViewOverlayButtons.cpp.

{
    const auto permanentActions = m_getActions(index, false);
    const auto hoverActions = m_getActions(index, true);
 
    if (permanentActions.isEmpty() && hoverActions.isEmpty())
        return;
 
    auto* w = new ItemViewOverlayWidget(m_view, index);
 
    const auto setAlignment = [&](const QList<QAction*> actions) {
        w->setHorizontalAlignment(Qt::AlignRight);
        if (actions.first() == nullptr && actions.last() == nullptr)
            w->setHorizontalAlignment(Qt::AlignCenter);
        else if (actions.first() != nullptr && actions.last() == nullptr)
            w->setHorizontalAlignment(Qt::AlignLeft);
    };
 
    if (!permanentActions.isEmpty()) {
        setAlignment(permanentActions);
        w->addActions(permanentActions);
        w->setHover(false);
    } else if (!hoverActions.isEmpty()) {
        setAlignment(hoverActions);
        w->addActions(hoverActions);
        w->setHover(true);
    }
 
    w->create();
    m_view->setIndexWidget(index, w);
}

References m_getActions, and m_view.

Referenced by updateRecursive().

update()

void ItemViewOverlayButtons::update ( )

private

Definition at line 220 of file ItemViewOverlayButtons.cpp.

{
    if (m_view->model() == nullptr)
        return;
    auto* m = m_view->model();
    for (int row = 0; row < m->rowCount(); row++)
        updateRecursive(m->index(row, 0));
}

References m_view, and updateRecursive().

Referenced by install().

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updateRecursive()

void ItemViewOverlayButtons::updateRecursive ( const QModelIndex &  index )

private

Definition at line 201 of file ItemViewOverlayButtons.cpp.

{
    const auto hoverIfNecessary = [&](QModelIndex index) {
        QPoint viewPortCoordinatesOfMouse = m_view->mapFromGlobal(QCursor::pos());
        if (m_view->indexAt(viewPortCoordinatesOfMouse) == index)
            if (auto* w = dynamic_cast<ItemViewOverlayWidget*>(m_view->indexWidget(index)))
                w->hover(true);
    };
 
    if (m_view->indexWidget(index) == nullptr)
        installOverlay(index);
    hoverIfNecessary(index);
 
    auto* m = m_view->model();
    for (int childRow = 0; childRow < m->rowCount(index); childRow++)
        updateRecursive(m->index(childRow, 0, index));
}

References installOverlay(), and m_view.

Referenced by update().

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Member Data Documentation

m_getActions

FnGetActions ItemViewOverlayButtons::m_getActions

private

Definition at line 40 of file ItemViewOverlayButtons.h.

Referenced by installOverlay().

m_view

QAbstractItemView* ItemViewOverlayButtons::m_view

private

Definition at line 41 of file ItemViewOverlayButtons.h.

Referenced by eventFilter(), installOverlay(), update(), and updateRecursive().

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The documentation for this class was generated from the following files:

• /home/build/builds/o5h8MZZm/0/mlz/bornagain/GUI/View/Common/ItemViewOverlayButtons.h
• /home/build/builds/o5h8MZZm/0/mlz/bornagain/GUI/View/Common/ItemViewOverlayButtons.cpp