void Viewport::item_hover(const shared_ptr<ViewItem> &item)
{
- if (item)
+ if (item && item->is_draggable())
setCursor(dynamic_pointer_cast<RowItem>(item) ?
Qt::SizeVerCursor : Qt::SizeHorCursor);
else
void Viewport::drag()
{
drag_offset_ = view_.offset();
+ drag_v_offset_ = view_.owner_visual_v_offset();
}
void Viewport::drag_by(const QPoint &delta)
view_.set_scale_offset(view_.scale(),
(*drag_offset_ - delta.x() * view_.scale()));
+
+ view_.set_v_offset(-drag_v_offset_ - delta.y());
}
void Viewport::drag_release()
view_.zoom(-2.0, event->x());
}
-void Viewport::wheelEvent(QWheelEvent *e)
+void Viewport::wheelEvent(QWheelEvent *event)
{
- assert(e);
+ assert(event);
- if (e->orientation() == Qt::Vertical)
- {
- if (e->modifiers() & Qt::ControlModifier) {
+ if (event->orientation() == Qt::Vertical) {
+ if (event->modifiers() & Qt::ControlModifier) {
// Vertical scrolling with the control key pressed
// is intrepretted as vertical scrolling
view_.set_v_offset(-view_.owner_visual_v_offset() -
- (e->delta() * height()) / (8 * 120));
+ (event->delta() * height()) / (8 * 120));
} else {
// Vertical scrolling is interpreted as zooming in/out
- view_.zoom(e->delta() / 120, e->x());
+ view_.zoom(event->delta() / 120, event->x());
}
- }
- else if (e->orientation() == Qt::Horizontal)
- {
+ } else if (event->orientation() == Qt::Horizontal) {
// Horizontal scrolling is interpreted as moving left/right
view_.set_scale_offset(view_.scale(),
- e->delta() * view_.scale() + view_.offset());
+ event->delta() * view_.scale() + view_.offset());
}
}