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livetrax/gtk2_ardour/automation_region_view.cc
David Robillard dff9e60c7f Draw region automation with draw in either mode.
Perhaps debatable if contents should be edited when not in internal mode
whatsoever, but consistent with audio region gain and track automation.  It's
less of a problem with the draw tool than, say, object since drawing stuff is
its entire purpose.
2014-12-07 20:37:53 -05:00

302 lines
8.9 KiB
C++

/*
Copyright (C) 2007 Paul Davis
Author: David Robillard
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <utility>
#include "pbd/memento_command.h"
#include "ardour/automation_control.h"
#include "ardour/event_type_map.h"
#include "ardour/midi_automation_list_binder.h"
#include "ardour/midi_region.h"
#include "ardour/session.h"
#include "gtkmm2ext/keyboard.h"
#include "automation_region_view.h"
#include "editing.h"
#include "editor.h"
#include "editor_drag.h"
#include "gui_thread.h"
#include "midi_automation_line.h"
#include "public_editor.h"
#include "i18n.h"
AutomationRegionView::AutomationRegionView (ArdourCanvas::Container* parent,
AutomationTimeAxisView& time_axis,
boost::shared_ptr<ARDOUR::Region> region,
const Evoral::Parameter& param,
boost::shared_ptr<ARDOUR::AutomationList> list,
double spu,
uint32_t basic_color)
: RegionView(parent, time_axis, region, spu, basic_color, true)
, _region_relative_time_converter(region->session().tempo_map(), region->position())
, _source_relative_time_converter(region->session().tempo_map(), region->position() - region->start())
, _parameter(param)
{
if (list) {
assert(list->parameter() == param);
create_line(list);
}
group->raise_to_top();
}
AutomationRegionView::~AutomationRegionView ()
{
RegionViewGoingAway (this); /* EMIT_SIGNAL */
}
void
AutomationRegionView::init (bool /*wfd*/)
{
_enable_display = false;
RegionView::init (false);
reset_width_dependent_items ((double) _region->length() / samples_per_pixel);
set_height (trackview.current_height());
set_colors ();
_enable_display = true;
}
void
AutomationRegionView::create_line (boost::shared_ptr<ARDOUR::AutomationList> list)
{
_line = boost::shared_ptr<AutomationLine> (new MidiAutomationLine(
ARDOUR::EventTypeMap::instance().to_symbol(list->parameter()),
trackview, *get_canvas_group(), list,
boost::dynamic_pointer_cast<ARDOUR::MidiRegion> (_region),
_parameter,
&_source_relative_time_converter));
_line->set_colors();
_line->set_height ((uint32_t)rint(trackview.current_height() - NAME_HIGHLIGHT_SIZE));
_line->set_visibility (AutomationLine::VisibleAspects (AutomationLine::Line|AutomationLine::ControlPoints));
_line->set_maximum_time (_region->length());
_line->set_offset (_region->start ());
}
bool
AutomationRegionView::canvas_group_event (GdkEvent* ev)
{
if (in_destructor) {
return false;
}
PublicEditor& e = trackview.editor ();
if (!trackview.editor().internal_editing() &&
e.current_mouse_mode() != Editing::MouseDraw) {
// not in internal edit mode, so just act like a normal region
return RegionView::canvas_group_event (ev);
}
if (ev->type == GDK_BUTTON_PRESS && e.current_mouse_mode() == Editing::MouseObject) {
/* XXX: icky dcast to Editor */
e.drags()->set (new EditorRubberbandSelectDrag (dynamic_cast<Editor*> (&e), group), ev);
e.drags()->start_grab (ev);
return true;
} else if (ev->type == GDK_MOTION_NOTIFY && e.drags()->active()) {
/* we probably shouldn't have to handle this here, but... */
e.drags()->motion_handler(ev, false);
return true;
} else if (ev->type == GDK_BUTTON_RELEASE && e.current_mouse_mode() == Editing::MouseDraw) {
if (e.drags()->end_grab (ev)) {
return true;
} else if (e.current_mouse_mode() != Editing::MouseDraw &&
e.current_mouse_mode() != Editing::MouseObject) {
return RegionView::canvas_group_event (ev);
}
double x = ev->button.x;
double y = ev->button.y;
/* convert to item coordinates in the time axis view */
automation_view()->canvas_display()->canvas_to_item (x, y);
/* clamp y */
y = std::max (y, 0.0);
y = std::min (y, _height - NAME_HIGHLIGHT_SIZE);
/* guard points only if primary modifier is used */
bool with_guard_points = Gtkmm2ext::Keyboard::modifier_state_equals (ev->button.state, Gtkmm2ext::Keyboard::PrimaryModifier);
add_automation_event (ev, e.pixel_to_sample (x) - _region->position() + _region->start(), y, with_guard_points);
return true;
}
return RegionView::canvas_group_event (ev);
}
/** @param when Position in frames, where 0 is the start of the region.
* @param y y position, relative to our TimeAxisView.
*/
void
AutomationRegionView::add_automation_event (GdkEvent *, framepos_t when, double y, bool with_guard_points)
{
if (!_line) {
boost::shared_ptr<Evoral::Control> c = _region->control(_parameter, true);
boost::shared_ptr<ARDOUR::AutomationControl> ac
= boost::dynamic_pointer_cast<ARDOUR::AutomationControl>(c);
assert(ac);
create_line(ac->alist());
}
assert(_line);
AutomationTimeAxisView* const view = automation_view ();
/* compute vertical fractional position */
const double h = trackview.current_height() - TimeAxisViewItem::NAME_HIGHLIGHT_SIZE - 2;
y = 1.0 - (y / h);
/* snap frame */
when = snap_frame_to_frame (when - _region->start ()) + _region->start ();
/* map using line */
double when_d = when;
_line->view_to_model_coord (when_d, y);
view->session()->begin_reversible_command (_("add automation event"));
XMLNode& before = _line->the_list()->get_state();
_line->the_list()->add (when_d, y, with_guard_points, false);
XMLNode& after = _line->the_list()->get_state();
view->session()->commit_reversible_command (
new MementoCommand<ARDOUR::AutomationList> (_line->memento_command_binder(), &before, &after));
view->session()->set_dirty ();
}
bool
AutomationRegionView::paste (framepos_t pos,
unsigned paste_count,
float times,
boost::shared_ptr<const ARDOUR::AutomationList> slist)
{
AutomationTimeAxisView* const view = automation_view();
boost::shared_ptr<ARDOUR::AutomationList> my_list = _line->the_list();
if (view->session()->transport_rolling() && my_list->automation_write()) {
/* do not paste if this control is in write mode and we're rolling */
return false;
}
/* add multi-paste offset if applicable */
pos += view->editor().get_paste_offset(
pos, paste_count, _source_relative_time_converter.to(slist->length()));
const double model_pos = _source_relative_time_converter.from(
pos - _source_relative_time_converter.origin_b());
XMLNode& before = my_list->get_state();
my_list->paste(*slist, model_pos, times);
view->session()->add_command(
new MementoCommand<ARDOUR::AutomationList>(_line->memento_command_binder(), &before, &my_list->get_state()));
return true;
}
void
AutomationRegionView::set_height (double h)
{
RegionView::set_height(h);
if (_line) {
_line->set_height ((uint32_t)rint(h - NAME_HIGHLIGHT_SIZE));
}
}
bool
AutomationRegionView::set_position (framepos_t pos, void* src, double* ignored)
{
if (_line) {
_line->set_maximum_time (_region->length ());
}
return RegionView::set_position(pos, src, ignored);
}
void
AutomationRegionView::reset_width_dependent_items (double pixel_width)
{
RegionView::reset_width_dependent_items(pixel_width);
if (_line) {
_line->reset();
}
}
void
AutomationRegionView::region_resized (const PBD::PropertyChange& what_changed)
{
RegionView::region_resized (what_changed);
if (what_changed.contains (ARDOUR::Properties::position)) {
_region_relative_time_converter.set_origin_b(_region->position());
}
if (what_changed.contains (ARDOUR::Properties::start) ||
what_changed.contains (ARDOUR::Properties::position)) {
_source_relative_time_converter.set_origin_b (_region->position() - _region->start());
}
if (!_line) {
return;
}
if (what_changed.contains (ARDOUR::Properties::start)) {
_line->set_offset (_region->start ());
}
if (what_changed.contains (ARDOUR::Properties::length)) {
_line->set_maximum_time (_region->length());
}
}
void
AutomationRegionView::entered (bool)
{
if (_line) {
_line->track_entered();
}
}
void
AutomationRegionView::exited ()
{
if (_line) {
_line->track_exited();
}
}