mirror of
https://invent.kde.org/network/falkon.git
synced 2024-12-20 10:46:35 +01:00
[ComboTabBar] Rework tab scrolling animation
Using OutQuad easing curve and restarting animation on new wheel events make the scrolling feel a lot better. Wheel scrolling behavior: horizontal wheel event: slower scrolling vertical wheel event with control modifier: faster scrolling vertical wheel event with other(+no) modifiers: fast scrolling
This commit is contained in:
nowrep
parent
f5955c7b92
commit
d17584d944
@ -82,6 +82,7 @@ ComboTabBar::ComboTabBar(QWidget* parent)
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m_pinnedTabBar->setAutoFillBackground(false);
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m_mainTabBar->installEventFilter(this);
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m_pinnedTabBar->installEventFilter(this);
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}
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int ComboTabBar::addTab(const QString &text)
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@ -596,6 +597,11 @@ bool ComboTabBar::eventFilter(QObject* obj, QEvent* ev)
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setUpLayout();
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}
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}
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if (ev->type() == QEvent::Wheel) {
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// Handle wheel events exclusively in ComboTabBar
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wheelEvent(static_cast<QWheelEvent*>(ev));
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return true;
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}
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return QWidget::eventFilter(obj, ev);
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}
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@ -904,7 +910,6 @@ bool TabBarHelper::event(QEvent* ev)
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{
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switch (ev->type()) {
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case QEvent::ToolTip:
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case QEvent::Wheel:
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ev->ignore();
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return false;
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@ -1086,8 +1091,8 @@ void TabBarHelper::resetDragState()
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TabScrollBar::TabScrollBar(QWidget* parent)
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: QScrollBar(Qt::Horizontal, parent)
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, m_animation(0)
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{
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m_animation = new QPropertyAnimation(this, "value", this);
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}
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TabScrollBar::~TabScrollBar()
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@ -1096,42 +1101,25 @@ TabScrollBar::~TabScrollBar()
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void TabScrollBar::animateToValue(int to, QEasingCurve::Type type)
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{
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if (!m_animation) {
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m_animation = new QPropertyAnimation(this, "value", this);
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}
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m_animation->setEasingCurve(type);
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int current = value();
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to = qBound(minimum(), to, maximum());
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int lenght = qAbs(to - current);
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int lenght = qAbs(to - value());
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int duration = qMin(1500, 200 + lenght / 2);
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m_animation->stop();
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m_animation->setEasingCurve(type);
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m_animation->setDuration(duration);
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if (m_animation->state() != QAbstractAnimation::Running) {
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m_animation->setStartValue(value());
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}
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m_animation->setStartValue(value());
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m_animation->setEndValue(to);
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m_animation->start();
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}
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void TabScrollBar::wheelEvent(QWheelEvent* event)
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{
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int delta = isRightToLeft() ? -event->delta() : event->delta();
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QWheelEvent fakeEvent(event->pos(), delta, event->buttons(),
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event->modifiers(), Qt::Vertical);
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QScrollBar::wheelEvent(&fakeEvent);
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event->accept();
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}
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TabBarScrollWidget::TabBarScrollWidget(QTabBar* tabBar, QWidget* parent)
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: QWidget(parent)
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, m_tabBar(tabBar)
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, m_usesScrollButtons(false)
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, m_bluredBackground(false)
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, m_scrollByButtonAnim(0)
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, m_totalDeltas(0)
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{
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m_scrollArea = new QScrollArea(this);
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m_scrollArea->setFrameStyle(QFrame::NoFrame);
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@ -1146,16 +1134,20 @@ TabBarScrollWidget::TabBarScrollWidget(QTabBar* tabBar, QWidget* parent)
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m_leftScrollButton = new ToolButton(this);
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m_leftScrollButton->setAutoRaise(true);
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m_leftScrollButton->setObjectName("tabbar-button-left");
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m_leftScrollButton->setAutoRepeat(true);
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m_leftScrollButton->setAutoRepeatDelay(200);
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m_leftScrollButton->setAutoRepeatInterval(200);
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connect(m_leftScrollButton, SIGNAL(pressed()), this, SLOT(scrollStart()));
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connect(m_leftScrollButton, SIGNAL(released()), this, SLOT(scrollStop()));
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connect(m_leftScrollButton, SIGNAL(doubleClicked()), this, SLOT(scrollToLeftEdge()));
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connect(m_leftScrollButton, SIGNAL(middleMouseClicked()), this, SLOT(ensureVisible()));
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m_rightScrollButton = new ToolButton(this);
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m_rightScrollButton->setAutoRaise(true);
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m_rightScrollButton->setObjectName("tabbar-button-right");
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m_rightScrollButton->setAutoRepeat(true);
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m_rightScrollButton->setAutoRepeatDelay(200);
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m_rightScrollButton->setAutoRepeatInterval(200);
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connect(m_rightScrollButton, SIGNAL(pressed()), this, SLOT(scrollStart()));
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connect(m_rightScrollButton, SIGNAL(released()), this, SLOT(scrollStop()));
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connect(m_rightScrollButton, SIGNAL(doubleClicked()), this, SLOT(scrollToRightEdge()));
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connect(m_rightScrollButton, SIGNAL(middleMouseClicked()), this, SLOT(ensureVisible()));
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@ -1250,16 +1242,16 @@ void TabBarScrollWidget::ensureVisible(int index, int xmargin)
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}
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}
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void TabBarScrollWidget::scrollToLeft(int n)
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void TabBarScrollWidget::scrollToLeft(int n, QEasingCurve::Type type)
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{
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n = qMax(1, n);
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m_scrollBar->animateToValue(m_scrollBar->value() - n * m_scrollBar->singleStep(), QEasingCurve::Linear);
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m_scrollBar->animateToValue(m_scrollBar->value() - n * m_scrollBar->singleStep(), type);
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}
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void TabBarScrollWidget::scrollToRight(int n)
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void TabBarScrollWidget::scrollToRight(int n, QEasingCurve::Type type)
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{
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n = qMax(1, n);
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m_scrollBar->animateToValue(m_scrollBar->value() + n * m_scrollBar->singleStep(), QEasingCurve::Linear);
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m_scrollBar->animateToValue(m_scrollBar->value() + n * m_scrollBar->singleStep(), type);
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}
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void TabBarScrollWidget::scrollToLeftEdge()
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@ -1305,39 +1297,23 @@ void TabBarScrollWidget::overFlowChanged(bool overflowed)
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void TabBarScrollWidget::scrollStart()
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{
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if (QApplication::keyboardModifiers() & Qt::CTRL) {
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if (sender() == m_leftScrollButton) {
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bool ctrlModifier = QApplication::keyboardModifiers() & Qt::ControlModifier;
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if (sender() == m_leftScrollButton) {
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if (ctrlModifier) {
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scrollToLeftEdge();
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}
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else if (sender() == m_rightScrollButton) {
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scrollToRightEdge();
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else {
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scrollToLeft(5, QEasingCurve::Linear);
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}
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return;
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}
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if (!m_scrollByButtonAnim) {
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m_scrollByButtonAnim = new QPropertyAnimation(m_scrollBar, "value", this);
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m_scrollByButtonAnim->setEasingCurve(QEasingCurve::Linear);
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}
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m_scrollByButtonAnim->stop();
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int len = m_scrollBar->value();
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m_scrollByButtonAnim->setStartValue(len);
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if (sender() == m_leftScrollButton) {
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len = len - m_scrollBar->minimum();
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m_scrollByButtonAnim->setEndValue(m_scrollBar->minimum());
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}
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else if (sender() == m_rightScrollButton) {
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len = m_scrollBar->maximum() - len;
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m_scrollByButtonAnim->setEndValue(m_scrollBar->maximum());
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}
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m_scrollByButtonAnim->setDuration(len * 3);
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m_scrollByButtonAnim->start();
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}
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void TabBarScrollWidget::scrollStop()
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{
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if (m_scrollByButtonAnim) {
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m_scrollByButtonAnim->stop();
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if (ctrlModifier) {
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scrollToRightEdge();
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}
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else {
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scrollToRight(5, QEasingCurve::Linear);
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}
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}
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}
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@ -1359,21 +1335,42 @@ void TabBarScrollWidget::scrollByWheel(QWheelEvent* event)
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{
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event->accept();
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// support for some finer mouse
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static int totalDeltas = 0;
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if (totalDeltas * event->delta() < 0) {
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// direction has changed from last time
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totalDeltas = 0;
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// Check if direction has changed from last time
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if (m_totalDeltas * event->delta() < 0) {
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m_totalDeltas = 0;
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}
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totalDeltas += event->delta();
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m_totalDeltas += event->delta();
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// Slower scrolling for horizontal wheel scrolling
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if (event->orientation() == Qt::Horizontal) {
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if (event->delta() > 0) {
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scrollToLeft();
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}
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else if (event->delta() < 0) {
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scrollToRight();
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}
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return;
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}
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// Faster scrolling with control modifier
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if (event->orientation() == Qt::Vertical && event->modifiers() == Qt::ControlModifier) {
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if (event->delta() > 0) {
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scrollToLeft(10);
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}
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else if (event->delta() < 0) {
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scrollToRight(10);
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}
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return;
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}
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// Fast scrolling with just wheel scroll
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int factor = qMax(m_scrollBar->pageStep() / 3, m_scrollBar->singleStep());
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if ((event->modifiers() & Qt::ControlModifier) || (event->modifiers() & Qt::ShiftModifier)) {
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factor = m_scrollBar->pageStep();
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}
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int offset = (totalDeltas / 120) * factor;
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int offset = (m_totalDeltas / 120) * factor;
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if (offset != 0) {
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if (isRightToLeft()) {
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m_scrollBar->animateToValue(m_scrollBar->value() + offset);
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@ -1382,7 +1379,7 @@ void TabBarScrollWidget::scrollByWheel(QWheelEvent* event)
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m_scrollBar->animateToValue(m_scrollBar->value() - offset);
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}
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totalDeltas -= (offset / factor) * 120;
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m_totalDeltas -= (offset / factor) * 120;
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}
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}
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@ -241,8 +241,7 @@ public:
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~TabScrollBar();
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void animateToValue(int to, QEasingCurve::Type type = QEasingCurve::InOutExpo);
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void wheelEvent(QWheelEvent* event);
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void animateToValue(int to, QEasingCurve::Type type = QEasingCurve::OutQuad);
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private:
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QPropertyAnimation* m_animation;
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@ -275,8 +274,8 @@ public:
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public slots:
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void ensureVisible(int index = -1, int xmargin = 132);
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void scrollToLeft(int n = 1);
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void scrollToRight(int n = 1);
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void scrollToLeft(int n = 5, QEasingCurve::Type type = QEasingCurve::OutQuad);
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void scrollToRight(int n = 5, QEasingCurve::Type type = QEasingCurve::OutQuad);
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void scrollToLeftEdge();
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void scrollToRightEdge();
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void setUpLayout();
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@ -285,7 +284,6 @@ private slots:
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void scrollBarValueChange();
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void overFlowChanged(bool overflowed);
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void scrollStart();
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void scrollStop();
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private:
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bool eventFilter(QObject* obj, QEvent* ev);
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@ -302,7 +300,7 @@ private:
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QWidget* m_rightContainer;
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bool m_usesScrollButtons;
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bool m_bluredBackground;
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QPropertyAnimation* m_scrollByButtonAnim;
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int m_totalDeltas;
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};
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// Class for close button on tabs
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