h += height() / 4;
int scroll_max_ = std::max(0, h - height());
h += height() / 4;
int scroll_max_ = std::max(0, h - height());
+ setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);
verticalScrollBar()->setRange(0, scroll_max_);
verticalScrollBar()->setSliderPosition(scroll_pos);
verticalScrollBar()->setSingleStep(scroll_line_step);
verticalScrollBar()->setRange(0, scroll_max_);
verticalScrollBar()->setSliderPosition(scroll_pos);
verticalScrollBar()->setSingleStep(scroll_line_step);