forked from blue/squawk
86 lines
2.5 KiB
C++
86 lines
2.5 KiB
C++
/*
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* Squawk messenger.
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* Copyright (C) 2019 Yury Gubich <blue@macaw.me>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "QTimer"
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#include "comboboxdelegate.h"
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ComboboxDelegate::ComboboxDelegate(QObject *parent):
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QStyledItemDelegate(parent),
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entries(),
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ff(new FocusFilter())
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{
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}
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ComboboxDelegate::~ComboboxDelegate()
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{
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delete ff;
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}
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QWidget* ComboboxDelegate::createEditor(QWidget *parent, const QStyleOptionViewItem &option, const QModelIndex &index) const
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{
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QComboBox *cb = new QComboBox(parent);
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for (const std::pair<QString, QIcon> pair : entries) {
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cb->addItem(pair.second, pair.first);
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}
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return cb;
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}
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void ComboboxDelegate::setEditorData(QWidget *editor, const QModelIndex &index) const
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{
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QComboBox *cb = static_cast<QComboBox*>(editor);
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int currentIndex = index.data(Qt::EditRole).toInt();
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if (currentIndex >= 0) {
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cb->setCurrentIndex(currentIndex);
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cb->installEventFilter(ff);
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}
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}
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void ComboboxDelegate::setModelData(QWidget *editor, QAbstractItemModel *model, const QModelIndex &index) const
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{
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QComboBox *cb = static_cast<QComboBox *>(editor);
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model->setData(index, cb->currentIndex(), Qt::EditRole);
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}
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void ComboboxDelegate::addEntry(const QString& title, const QIcon& icon)
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{
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entries.emplace_back(title, icon);
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}
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bool ComboboxDelegate::FocusFilter::eventFilter(QObject* src, QEvent* evt)
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{
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if (evt->type() == QEvent::FocusIn) {
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QComboBox* cb = static_cast<QComboBox*>(src);
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cb->removeEventFilter(this);
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QTimer* timer = new QTimer; //TODO that is ridiculous! I refuse to believe there is no better way than that one!
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QObject::connect(timer, &QTimer::timeout, [timer, cb]() {
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cb->showPopup();
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timer->deleteLater();
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});
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timer->setSingleShot(true);
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timer->start(100);
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}
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return QObject::eventFilter(src, evt);
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}
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