mirror of
https://github.com/KDE/latte-dock.git
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132 lines
3.9 KiB
C++
132 lines
3.9 KiB
C++
/*
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* Copyright 2020 Michail Vourlakos <mvourlakos@gmail.com>
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*
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* This file is part of Latte-Dock
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*
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* Latte-Dock is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* Latte-Dock 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 "parabolic.h"
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// local
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#include "view.h"
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// Qt
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#include <QMetaObject>
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namespace Latte {
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namespace ViewPart {
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Parabolic::Parabolic(Latte::View *parent)
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: QObject(parent),
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m_view(parent)
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{
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//! Parabolic Item Nullifier does not need any big interval in order to avoid
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//! nullifing currentParabolicItem too fast and as such send a false signal
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//! that NO parabolic item is hovered currently
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m_parabolicItemNullifier.setInterval(1);
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m_parabolicItemNullifier.setSingleShot(true);
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connect(&m_parabolicItemNullifier, &QTimer::timeout, this, [&]() {
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setCurrentParabolicItem(nullptr);
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});
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connect(this, &Parabolic::currentParabolicItemChanged, this, &Parabolic::onCurrentParabolicItemChanged);
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connect(m_view, &View::eventTriggered, this, &Parabolic::onEvent);
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}
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Parabolic::~Parabolic()
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{
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}
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QQuickItem *Parabolic::currentParabolicItem() const
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{
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return m_currentParabolicItem;
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}
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void Parabolic::setCurrentParabolicItem(QQuickItem *item)
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{
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if (m_currentParabolicItem == item) {
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return;
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}
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if (m_currentParabolicItem) {
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QMetaObject::invokeMethod(m_currentParabolicItem, "parabolicExited", Qt::QueuedConnection);
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}
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m_currentParabolicItem = item;
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emit currentParabolicItemChanged();
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}
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void Parabolic::onEvent(QEvent *e)
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{
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if (!e) {
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return;
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}
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switch (e->type()) {
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case QEvent::Leave:
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setCurrentParabolicItem(nullptr);
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break;
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case QEvent::MouseMove:
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if (auto me = dynamic_cast<QMouseEvent *>(e)) {
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if (m_currentParabolicItem) {
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QPointF internal = m_currentParabolicItem->mapFromScene(me->windowPos());
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if (m_currentParabolicItem->contains(internal)) {
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m_parabolicItemNullifier.stop();
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//! sending move event to parabolic item
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QMetaObject::invokeMethod(m_currentParabolicItem,
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"parabolicMove",
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Qt::QueuedConnection,
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Q_ARG(qreal, internal.x()),
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Q_ARG(qreal, internal.y()));
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} else {
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m_lastOrphanParabolicMove = me->windowPos();
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//! clearing parabolic item
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m_parabolicItemNullifier.start();
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}
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} else {
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m_lastOrphanParabolicMove = me->windowPos();
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}
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}
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default:
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break;
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}
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}
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void Parabolic::onCurrentParabolicItemChanged()
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{
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m_parabolicItemNullifier.stop();
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if (m_currentParabolicItem) {
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QPointF internal = m_currentParabolicItem->mapFromScene(m_lastOrphanParabolicMove);
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if (m_currentParabolicItem->contains(internal)) {
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//! sending enter event to parabolic item
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QMetaObject::invokeMethod(m_currentParabolicItem,
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"parabolicEntered",
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Qt::QueuedConnection,
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Q_ARG(qreal, internal.x()),
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Q_ARG(qreal, internal.y()));
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}
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}
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}
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}
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}
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