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Port matrix useability fix.

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When a page has changed, leave the adjustment where it is on the axis whose
size remains the same.
On the changed axis, set the scroller to zero.
This commit is contained in:
nick_m
2015-04-05 03:35:27 +10:00
parent a45feecb1b
commit 7cf04e2b9d
1 changed files with 11 additions and 2 deletions
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13
gtk2_ardour/port_matrix.cc
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@@ -248,17 +248,26 @@ PortMatrix::setup_scrollbars ()
{
Adjustment* a = _hscroll.get_adjustment ();
a->set_lower (0);
a->set_upper (_body->full_scroll_width());
a->set_page_size (_body->alloc_scroll_width());
a->set_step_increment (32);
a->set_page_increment (128);
/* Set the adjustment to zero if the size has changed.*/
if (a->get_upper() != _body->full_scroll_width()) {
a->set_upper (_body->full_scroll_width());
a->set_value (0);
}
a = _vscroll.get_adjustment ();
a->set_lower (0);
a->set_upper (_body->full_scroll_height());
a->set_page_size (_body->alloc_scroll_height());
a->set_step_increment (32);
a->set_page_increment (128);
if (a->get_upper() != _body->full_scroll_height()) {
a->set_upper (_body->full_scroll_height());
a->set_value (0);
}
}
/** Disassociate all of our ports from each other */