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Support smooth scroll in timeline

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This commit is contained in:
David Capello 2016-11-23 14:09:42 -03:00
parent abc586a6d4
commit 489e7da6ec
1 changed files with 14 additions and 14 deletions
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28
src/app/ui/timeline.cpp
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@ -872,23 +872,23 @@ bool Timeline::onProcessMessage(Message* msg)
case kMouseWheelMessage:
if (m_document) {
int dz = static_cast<MouseMessage*>(msg)->wheelDelta().y;
int dx = 0;
int dy = 0;
gfx::Point delta = static_cast<MouseMessage*>(msg)->wheelDelta();
if (!static_cast<MouseMessage*>(msg)->preciseWheel()) {
delta.x *= FRMSIZE;
delta.y *= LAYSIZE;
dx += static_cast<MouseMessage*>(msg)->wheelDelta().x;
if (msg->shiftPressed()) {
// On macOS shift already changes the wheel axis
if (std::fabs(delta.y) > delta.x)
std::swap(delta.x, delta.y);
}
if (msg->ctrlPressed())
dx = dz * FRMSIZE;
else
dy = dz * LAYSIZE;
if (msg->shiftPressed()) {
dx *= 3;
dy *= 3;
if (msg->altPressed()) {
delta.x *= 3;
delta.y *= 3;
}
}
setViewScroll(viewScroll() + gfx::Point(dx, dy));
setViewScroll(viewScroll() + delta);
}
break;