ardour/livetrax
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Snap to VCA strips in the mixer when scrolling

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This commit is contained in:
Robin Gareus 2019-03-12 17:04:13 +01:00
parent e8284def1f
commit 706f56cc52
Signed by: rgareus
GPG Key ID: A090BCE02CF57F04
2 changed files with 85 additions and 0 deletions
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82
gtk2_ardour/mixer_ui.cc
View File

@ -267,6 +267,7 @@ Mixer_UI::Mixer_UI ()
vca_scroller_base.set_name (X_("MixerWindow"));
vca_scroller_base.signal_button_release_event().connect (sigc::mem_fun(*this, &Mixer_UI::masters_scroller_button_release), false);
vca_hpacker.signal_scroll_event().connect (sigc::mem_fun (*this, &Mixer_UI::on_vca_scroll_event), false);
vca_scroller.add (vca_hpacker);
vca_scroller.set_policy (Gtk::POLICY_ALWAYS, Gtk::POLICY_AUTOMATIC);
vca_scroller.signal_button_release_event().connect (sigc::mem_fun(*this, &Mixer_UI::strip_scroller_button_release));
@ -2444,6 +2445,87 @@ Mixer_UI::on_scroll_event (GdkEventScroll* ev)
return false;
}
void
Mixer_UI::vca_scroll_left ()
{
if (!vca_scroller.get_hscrollbar()) return;
Adjustment* adj = vca_scroller.get_hscrollbar()->get_adjustment();
int sc_w = vca_scroller.get_width();
int sp_w = strip_packer.get_width();
if (sp_w <= sc_w) {
return;
}
int lp = adj->get_value();
int lm = 0;
using namespace Gtk::Box_Helpers;
const BoxList& strips = vca_hpacker.children();
for (BoxList::const_iterator i = strips.begin(); i != strips.end(); ++i) {
if (i->get_widget() == &add_vca_button) {
continue;
}
lm += i->get_widget()->get_width ();
if (lm >= lp) {
lm -= i->get_widget()->get_width ();
break;
}
}
vca_scroller.get_hscrollbar()->set_value (max (adj->get_lower(), min (adj->get_upper(), lm - 1.0)));
}
void
Mixer_UI::vca_scroll_right ()
{
if (!vca_scroller.get_hscrollbar()) return;
Adjustment* adj = vca_scroller.get_hscrollbar()->get_adjustment();
int sc_w = vca_scroller.get_width();
int sp_w = strip_packer.get_width();
if (sp_w <= sc_w) {
return;
}
int lp = adj->get_value();
int lm = 0;
using namespace Gtk::Box_Helpers;
const BoxList& strips = vca_hpacker.children();
for (BoxList::const_iterator i = strips.begin(); i != strips.end(); ++i) {
if (i->get_widget() == &add_vca_button) {
continue;
}
lm += i->get_widget()->get_width ();
if (lm > lp + 1) {
break;
}
}
vca_scroller.get_hscrollbar()->set_value (max (adj->get_lower(), min (adj->get_upper(), lm - 1.0)));
}
bool
Mixer_UI::on_vca_scroll_event (GdkEventScroll* ev)
{
switch (ev->direction) {
case GDK_SCROLL_LEFT:
vca_scroll_left ();
return true;
case GDK_SCROLL_UP:
if (ev->state & Keyboard::TertiaryModifier) {
vca_scroll_left ();
return true;
}
return false;
case GDK_SCROLL_RIGHT:
vca_scroll_right ();
return true;
case GDK_SCROLL_DOWN:
if (ev->state & Keyboard::TertiaryModifier) {
vca_scroll_right ();
return true;
}
return false;
}
return false;
}
void
Mixer_UI::parameter_changed (string const & p)

3
gtk2_ardour/mixer_ui.h
View File

@ -190,6 +190,7 @@ private:
MixerGroupTabs* _group_tabs;
bool on_scroll_event (GdkEventScroll*);
bool on_vca_scroll_event (GdkEventScroll*);
std::list<MixerStrip *> strips;
@ -198,6 +199,8 @@ private:
bool masters_scroller_button_release (GdkEventButton*);
void scroll_left ();
void scroll_right ();
void vca_scroll_left ();
void vca_scroll_right ();
void toggle_midi_input_active (bool flip_others);
void move_stripable_into_view (boost::shared_ptr<ARDOUR::Stripable>);