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Add fast Ctrl/Shift scroll to ElasticScroll.

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This commit is contained in:
John Preston 2024-03-12 17:05:17 +04:00
parent edfcac751d
commit fb1716c91f
1 changed files with 9 additions and 2 deletions
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11
ui/widgets/elastic_scroll.cpp
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@ -660,7 +660,14 @@ bool ElasticScroll::handleWheelEvent(not_null<QWheelEvent*> e, bool touch) {
const auto guard = gsl::finally([&] {
_lastScroll = now;
});
const auto pixels = ScrollDelta(e, touch);
const auto unmultiplied = ScrollDelta(e, touch);
const auto multiply = e->modifiers()
& (Qt::ControlModifier | Qt::ShiftModifier);
const auto pixels = multiply
? QPoint(
(unmultiplied.x() * std::max(width(), 120) / 120.),
(unmultiplied.y() * std::max(height(), 120) / 120.))
: unmultiplied;
auto delta = _vertical ? -pixels.y() : pixels.x();
if (std::abs(_vertical ? pixels.x() : pixels.y()) >= std::abs(delta)) {
delta = 0;
@ -1030,7 +1037,7 @@ void ElasticScroll::sendWheelEvent(Qt::ScrollPhase phase, QPoint delta) {
delta,
delta,
Qt::NoButton,
QGuiApplication::keyboardModifiers(),
Qt::KeyboardModifiers(), // Ignore Ctrl/Shift fast scroll on touch.
phase,
false,
Qt::MouseEventSynthesizedByApplication);