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286 | /* ============================================================
*
* This file is a part of digiKam project
* https://www.digikam.org
*
* Date : 2010-09-15
* Description : Special combo box for adding or creating tags
*
* SPDX-FileCopyrightText: 2010 by Marcel Wiesweg <marcel dot wiesweg at gmx dot de>
* SPDX-FileCopyrightText: 1997 by Sven Radej (sven.radej@iname.com)
* SPDX-FileCopyrightText: 1999 by Patrick Ward <PAT_WARD@HP-USA-om5.om.hp.com>
* SPDX-FileCopyrightText: 1999 by Preston Brown <pbrown at kde dot org>
* SPDX-FileCopyrightText: 2000, 2001 by Dawit Alemayehu <adawit at kde dot org>
* SPDX-FileCopyrightText: 2000, 2001 by Carsten Pfeiffer <pfeiffer at kde dot org>
*
* SPDX-License-Identifier: GPL-2.0-or-later
*
* ============================================================ */
#include "addtagscombobox.h"
// Qt includes
#include <QKeyEvent>
#include <QApplication>
// Local includes
#include "digikam_debug.h"
#include "addtagslineedit.h"
#include "tagtreeview.h"
#include "albummodel.h"
namespace Digikam
{
class Q_DECL_HIDDEN AddTagsComboBox::Private
{
public:
Private() = default;
AddTagsLineEdit* lineEdit = nullptr;
TaggingAction viewTaggingAction;
};
// ---------------------------------------------------------------------------------------
AddTagsComboBox::AddTagsComboBox(QWidget* const parent)
: TagTreeViewSelectComboBox(parent),
d (new Private)
{
setInsertPolicy(QComboBox::NoInsert); // do not let Qt interfere when Enter is pressed
setCloseOnActivate(true);
setMaxVisibleItems(10);
setCheckable(false);
setParent(nullptr);
d->lineEdit = new AddTagsLineEdit(this);
setLineEdit(d->lineEdit);
// See QTBUG-20531
Qt::WindowFlags wflags = d->lineEdit->completer()->popup()->windowFlags();
d->lineEdit->completer()->popup()->setParent(d->lineEdit, wflags);
connect(d->lineEdit, SIGNAL(taggingActionActivated(TaggingAction)),
this, SLOT(slotLineEditActionActivated(TaggingAction)));
connect(d->lineEdit, SIGNAL(taggingActionSelected(TaggingAction)),
this, SLOT(slotLineEditActionSelected(TaggingAction)));
connect(d->lineEdit->completer(), QOverload<const QString&>::of(&QCompleter::highlighted),
this, [this](const QString& text)
{
d->lineEdit->setText(text);
}
);
TagTreeView::Flags flags;
m_treeView = new TagTreeView(this, flags);
connect(m_treeView, SIGNAL(activated(QModelIndex)),
this, SLOT(slotViewIndexActivated(QModelIndex)));
d->lineEdit->completer()->popup()->installEventFilter(this);
installEventFilter(this);
}
AddTagsComboBox::~AddTagsComboBox()
{
delete d;
}
void AddTagsComboBox::setAlbumModels(TagModel* const model,<--- Derived function 'AddTagsComboBox::setAlbumModels'
TagPropertiesFilterModel* const filteredModel,
CheckableAlbumFilterModel* const filterModel)
{
TagTreeViewSelectComboBox::setAlbumModels(model, filteredModel, filterModel);
// the line edit will pick one
d->lineEdit->setAlbumModels(model, filteredModel, filterModel);
}
AddTagsLineEdit* AddTagsComboBox::lineEdit() const
{
return d->lineEdit;
}
void AddTagsComboBox::setParentTag(TAlbum* const album)
{
d->lineEdit->setParentTag(album);
}
void AddTagsComboBox::setCurrentTag(TAlbum* const album)
{
view()->setCurrentAlbums(QList<Album*>() << album);
slotViewIndexActivated(view()->currentIndex());
}
void AddTagsComboBox::setPlaceholderText(const QString& message)
{
d->lineEdit->setPlaceholderText(message);
}
QString AddTagsComboBox::text() const
{
return d->lineEdit->text();
}
void AddTagsComboBox::setText(const QString& text)
{
d->lineEdit->setText(text);
}
TaggingAction AddTagsComboBox::currentTaggingAction()
{
if (d->viewTaggingAction.isValid())
{
return d->viewTaggingAction;
}
return d->lineEdit->currentTaggingAction();
}
void AddTagsComboBox::slotViewIndexActivated(const QModelIndex& index)
{
TAlbum* const album = view()->albumForIndex(index);
if (album)
{
d->lineEdit->setText(album->title());
d->viewTaggingAction = TaggingAction(album->id());
}
else
{
d->lineEdit->setText(QString());
d->viewTaggingAction = TaggingAction();
}
Q_EMIT taggingActionSelected(currentTaggingAction());
}
void AddTagsComboBox::slotLineEditActionActivated(const TaggingAction& action)
{
d->viewTaggingAction = TaggingAction();
Q_EMIT taggingActionActivated(action);
}
void AddTagsComboBox::slotLineEditActionSelected(const TaggingAction& action)
{
d->viewTaggingAction = TaggingAction();
Q_EMIT taggingActionSelected(action);
}
bool AddTagsComboBox::eventFilter(QObject* object, QEvent* event)
{
QAbstractItemView* const popup = d->lineEdit->completer()->popup();
if (popup && (object == popup))
{
if (event->type() == QEvent::Show)
{
setFocus();
}
else if (event->type() == QEvent::Hide)
{
popup->setFocus();
}
else if (event->type() == QEvent::Move)
{
if (parentWidget())
{
QPoint pos = geometry().bottomLeft();
QPoint newPos = parentWidget()->mapToGlobal(pos);
newPos.ry()--;
if (popup->pos() != newPos)
{
popup->setMinimumWidth(parentWidget()->width() + 50);
popup->move(newPos);
}
}
}
return false;
}
else if (popup && (object == this))
{
if ((event->type() == QEvent::KeyPress) ||
(event->type() == QEvent::KeyRelease))
{
if (popup->isVisible())
{
QKeyEvent* const keyEvent = static_cast<QKeyEvent*>(event);
if (
(keyEvent->key() == Qt::Key_Up) ||
(keyEvent->key() == Qt::Key_Down) ||
(keyEvent->key() == Qt::Key_Enter) ||
(keyEvent->key() == Qt::Key_Return)
)
{
QApplication::sendEvent(popup, event);
return true;
}
else if (keyEvent->key() == Qt::Key_Escape)
{
event->accept();
popup->hide();
return true;
}
}
}
else if (event->type() == QEvent::ShortcutOverride)
{
QKeyEvent* const keyEvent = static_cast<QKeyEvent*>(event);
if (popup->isVisible())
{
if (
(keyEvent->key() == Qt::Key_Up) ||
(keyEvent->key() == Qt::Key_Down) ||
(keyEvent->key() == Qt::Key_Escape)
)
{
event->accept();
}
}
else if (d->lineEdit->text().isEmpty())
{
if (
(keyEvent->key() == Qt::Key_Left) ||
(keyEvent->key() == Qt::Key_Right)
)
{
return true;
}
}
}
else if (event->type() == QEvent::HoverMove)
{
if (popup->isVisible())
{
popup->hide();
}
}
else if (event->type() == QEvent::Show)
{
adjustSize();
}
return false;
}
return TagTreeViewSelectComboBox::eventFilter(object, event);
}
} // namespace Digikam
#include "moc_addtagscombobox.cpp"
|