void YSlider::allocate_thumb(const Allocation& a) {
redraw_thumb();
Allocation thumb_a;
allot_thumb_major_axis(
a, Dimension_Y, adjustable_, minimum_thumb_size(),
yscale_, thumb_a.y_allotment()
);
allot_thumb_minor_axis(a.x_allotment(), thumb_a.x_allotment());
reallocate_thumb(thumb_a);
}
void Slider::release(const Event& e) {
SliderImpl& s = *impl_;
if (s.dragging_) {
if (s.showing_old_thumb_) {
s.showing_old_thumb_ = false;
s.old_thumb_->redraw();
}
s.dragging_ = false;
if (s.aborted_) {
s.aborted_ = false;
return;
}
move_to(e.pointer_x() - s.xoffset_, e.pointer_y() - s.yoffset_);
redraw_thumb();
move(e);
apply_adjustment(&Adjustable::commit_adjustment);
} else if (s.stepper_ != nil) {
s.stepper_->stop_stepping();
s.stepper_ = nil;
move(e);
}
}
void Slider::release(const Event& e) {
SliderImpl& s = *impl_;
if (s.dragging_) {
if (s.showing_old_thumb_) {
s.showing_old_thumb_ = false;
s.old_thumb_->redraw();
}
s.dragging_ = false;
if (s.aborted_) {
s.aborted_ = false;
return;
}
Coord x, y;
s.get_position(this, e, x, y);
move_to(x - s.xoffset_, y - s.yoffset_);
redraw_thumb();
move(e);
apply_adjustment(&Adjustable::commit_adjustment);
} else if (s.stepper_ != nil) {
s.stepper_->stop_stepping();
s.stepper_ = nil;
move(e);
}
}
