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tentative beginnings for a canvas piano roll header

This commit is contained in:
Paul Davis 2024-02-07 13:13:40 -07:00
parent a8194729f1
commit 7329508fd1
6 changed files with 1045 additions and 2 deletions
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7
gtk2_ardour/midi_cue_editor.cc
View File

@ -36,6 +36,7 @@
#include "midi_cue_editor.h"
#include "midi_cue_view.h"
#include "note_base.h"
#include "prh.h"
#include "ui_config.h"
#include "verbose_cursor.h"
@ -50,6 +51,7 @@ MidiCueEditor::MidiCueEditor()
: timebar_height (15.)
, n_timebars (3)
, view (nullptr)
, prh (nullptr)
, mouse_mode (Editing::MouseContent)
, bbt_metric (*this)
{
@ -175,7 +177,7 @@ MidiCueEditor::build_canvas ()
CANVAS_DEBUG_NAME (bbt_ruler, "cue bbt ruler");
data_group = new ArdourCanvas::Container (hv_scroll_group);
data_group->move (ArdourCanvas::Duple (0., timebar_height * n_timebars));
data_group->move (ArdourCanvas::Duple (30, timebar_height * n_timebars));
CANVAS_DEBUG_NAME (data_group, "cue data group");
bg = new CueMidiBackground (data_group);
@ -311,6 +313,9 @@ MidiCueEditor::set_region (std::shared_ptr<ARDOUR::MidiTrack> t, std::shared_ptr
bg->set_view (view);
delete prh;
prh = new ArdourCanvas::PianoRollHeader (data_group, *view);
/* Compute zoom level to show entire source plus some margin if possible */
Temporal::timecnt_t duration = Temporal::timecnt_t (r->midi_source()->length().beats());

2
gtk2_ardour/midi_cue_editor.h
View File

@ -33,6 +33,7 @@ namespace ArdourCanvas {
class Canvas;
class Container;
class GtkCanvasViewport;
class PianoRollHeader;
class ScrollGroup;
}
@ -125,6 +126,7 @@ class MidiCueEditor : public CueEditor
ArdourCanvas::Ruler* bbt_ruler;
ArdourCanvas::Rectangle* tempo_bar;
ArdourCanvas::Rectangle* meter_bar;
ArdourCanvas::PianoRollHeader* prh;
ArdourCanvas::Rectangle* transport_loop_range_rect;

1
gtk2_ardour/midi_view.h
View File

@ -331,6 +331,7 @@ class MidiView : public virtual sigc::trackable
void show_verbose_cursor_for_new_note_value(std::shared_ptr<NoteType> current_note, uint8_t new_note) const;
std::shared_ptr<ARDOUR::MidiTrack> midi_track() const { return _midi_track; }
std::shared_ptr<ARDOUR::MidiRegion> midi_region() const { return _midi_region; }
EditingContext& editing_context() const { return _editing_context; }
MidiViewBackground& midi_context() const { return _midi_context; }

892
gtk2_ardour/prh.cc Normal file
View File

@ -0,0 +1,892 @@
/*
* Copyright (C) 2008-2014 David Robillard <d@drobilla.net>
* Copyright (C) 2009-2011 Carl Hetherington <carl@carlh.net>
* Copyright (C) 2009-2013 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2014-2017 Robin Gareus <robin@gareus.org>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <iostream>
#include "evoral/midi_events.h"
#include "canvas/canvas.h"
#include "ardour/midi_track.h"
#include "gtkmm2ext/colors.h"
#include "gtkmm2ext/keyboard.h"
#include "gtkmm2ext/rgb_macros.h"
#include "editing.h"
#include "midi_view.h"
#include "midi_view_background.h"
#include "prh.h"
#include "editing_context.h"
#include "ui_config.h"
#include "midi++/midnam_patch.h"
#include "pbd/i18n.h"
using namespace std;
using namespace Gtkmm2ext;
namespace ArdourCanvas {
PianoRollHeader::PianoRollHeader (Item* parent, MidiView& v)
: Rectangle (parent)
, have_note_names (false)
, _adj (v.midi_context().note_range_adjustment)
, _view (v)
, _font_descript ("Sans Bold")
, _font_descript_big_c ("Sans")
, _font_descript_midnam ("Sans")
, _highlighted_note (NO_MIDI_NOTE)
, _clicked_note (NO_MIDI_NOTE)
, _dragging (false)
, _scroomer_size (63.f)
, _scroomer_drag (false)
, _old_y (0.0)
, _fract (0.0)
, _scroomer_state (NONE)
, _scroomer_button_state (NONE)
, _saved_top_val (0.0)
, _saved_bottom_val (127.0)
, _mini_map_display (false)
, entered (false)
{
Glib::RefPtr<Pango::Context> context = _canvas->get_pango_context();
_layout = Pango::Layout::create (context);
_big_c_layout = Pango::Layout::create (context);
_font_descript_big_c.set_absolute_size (10.0 * Pango::SCALE);
_big_c_layout->set_font_description(_font_descript_big_c);
_midnam_layout = Pango::Layout::create (context);
_adj.set_lower(0);
_adj.set_upper(127);
/* set minimum view range to one octave */
//set_min_page_size(12);
//_adj = v->note_range_adjustment;
for (int i = 0; i < 128; ++i) {
_active_notes[i] = false;
}
_view.midi_context().NoteRangeChanged.connect (sigc::mem_fun (*this, &PianoRollHeader::note_range_changed));
if (show_scroomer()) {
_scroomer_size = 60.f * UIConfiguration::instance().get_ui_scale();
} else {
_scroomer_size = 20.f * UIConfiguration::instance().get_ui_scale();
}
set (Rect (0., 0., _scroomer_size + 20., 120.));
}
inline void
create_path (Cairo::RefPtr<Cairo::Context> cr, double x[], double y[], int start, int stop)
{
cr->move_to (x[start], y[start]);
for (int i = start + 1; i <= stop; ++i) {
cr->line_to (x[i], y[i]);
}
}
inline void
render_rect(Cairo::RefPtr<Cairo::Context> cr, int note, double x[], double y[],
Gtkmm2ext::Color& bg)
{
set_source_rgba(cr, bg);
create_path(cr, x, y, 0, 4);
cr->fill();
}
void
PianoRollHeader::size_allocate (ArdourCanvas::Rect const &r)
{
_alloc = r;
}
void
PianoRollHeader::render_scroomer(Cairo::RefPtr<Cairo::Context> cr) const
{
double scroomer_top = max (1.0, (1.0 - ((_adj.get_value()+_adj.get_page_size()) / 127.0)) * _alloc.height () );
double scroomer_bottom = (1.0 - (_adj.get_value () / 127.0)) * _alloc.height ();
double scroomer_width = _scroomer_size;
Gtkmm2ext::Color c = UIConfiguration::instance().color_mod (X_("scroomer"), X_("scroomer alpha"));
Gtkmm2ext::Color save_color (c);
if (entered) {
c = HSV (c).lighter (0.25).color();
}
set_source_rgba (cr, c);
cr->move_to (1.f, scroomer_top);
cr->line_to (scroomer_width - 1.f, scroomer_top);
cr->line_to (scroomer_width - 1.f, scroomer_bottom);
cr->line_to (1.f, scroomer_bottom);
cr->line_to (1.f, scroomer_top);
cr->fill();
if (entered) {
cr->save ();
c = HSV (save_color).lighter (0.9).color();
set_source_rgba (cr, c);
cr->set_line_width (4.);
cr->move_to (1.f, scroomer_top + 2.);
cr->line_to (scroomer_width - 1.f, scroomer_top + 2.);
cr->stroke ();
cr->line_to (scroomer_width - 1.f, scroomer_bottom - 2.);
cr->line_to (2.f, scroomer_bottom - 2.);
cr->stroke ();
cr->restore ();
}
}
bool
PianoRollHeader::scroll_handler (GdkEventScroll* ev)
{
int note_range = _adj.get_page_size ();
int note_lower = _adj.get_value ();
if(ev->state == GDK_SHIFT_MASK){
switch (ev->direction) {
case GDK_SCROLL_UP: //ZOOM IN
_view.apply_note_range (min(note_lower + 1, 127), max(note_lower + note_range - 1,0), true);
break;
case GDK_SCROLL_DOWN: //ZOOM OUT
_view.apply_note_range (max(note_lower - 1,0), min(note_lower + note_range + 1, 127), true);
break;
default:
return false;
}
}else{
switch (ev->direction) {
case GDK_SCROLL_UP:
_adj.set_value (min (note_lower + 1, 127 - note_range));
break;
case GDK_SCROLL_DOWN:
_adj.set_value (note_lower - 1.0);
break;
default:
return false;
}
}
set_note_highlight (_view.midi_context().y_to_note (ev->y));
_adj.value_changed ();
redraw ();
return true;
}
void
PianoRollHeader::get_path (int note, double x[], double y[]) const
{
double scroomer_size = _scroomer_size;
double y_pos = floor(_view.midi_context().note_to_y(note));
double note_height;
_raw_note_height = floor(_view.midi_context().note_to_y(note - 1)) - y_pos;
double width = _alloc.width() - 1.0f;
if (note == 0) {
note_height = floor(_view.midi_context().contents_height()) - y_pos;
} else {
note_height = _raw_note_height <= 3 ? _raw_note_height : _raw_note_height - 1.f;
}
x[0] = scroomer_size;
y[0] = y_pos + note_height;
x[1] = scroomer_size;
y[1] = y_pos;
x[2] = width;
y[2] = y_pos;
x[3] = width;
y[3] = y_pos + note_height;
x[4] = scroomer_size;
y[4] = y_pos + note_height;
return;
}
void
PianoRollHeader::render (ArdourCanvas::Rect const & area, Cairo::RefPtr<Cairo::Context> cr) const
{
int lowest, highest;
Gtkmm2ext::Color bg;
double x[9];
double y[9];
int oct_rel;
double y1 = max (area.y0, 0.);
double y2 = min (area.y1, (ArdourCanvas::Coord) floor(_view.midi_context().contents_height()));
double av_note_height = _alloc.height () / _adj.get_page_size ();
int bc_height, bc_width;
//Reduce the frequency of Pango layout resizing
//if (int(_old_av_note_height) != int(av_note_height)) {
//Set Pango layout keyboard c's size
_font_descript.set_absolute_size (av_note_height * 0.7 * Pango::SCALE);
_layout->set_font_description(_font_descript);
//change mode of midnam display
if (av_note_height >= 8.0) {
_mini_map_display = false;
} else {
_mini_map_display = true;
}
//Set Pango layout midnam size
_font_descript_midnam.set_absolute_size (max(8.0 * 0.7 * Pango::SCALE, (int)av_note_height * 0.7 * Pango::SCALE));
_midnam_layout->set_font_description(_font_descript_midnam);
lowest = max(_view.midi_context().lowest_note(), _view.midi_context().y_to_note(y2));
highest = min(_view.midi_context().highest_note(), _view.midi_context().y_to_note(y1));
if (lowest > 127) {
lowest = 0;
}
/* fill the entire rect with the color for non-highlighted white notes.
* then we won't have to draw the background for those notes,
* and would only have to draw the background for the one highlighted white note*/
//cr->rectangle(rect.x, rect.y, rect.width, rect.height);
//r->set_source_rgb(1, 0,0);
//cr->fill();
cr->set_line_width (1.0f);
Gtkmm2ext::Color white = UIConfiguration::instance().color (X_("piano key white"));
Gtkmm2ext::Color white_highlight = UIConfiguration::instance().color (X_("piano key highlight"));
Gtkmm2ext::Color black = UIConfiguration::instance().color (X_("piano key black"));
Gtkmm2ext::Color black_highlight = UIConfiguration::instance().color (X_("piano key highlight"));
Gtkmm2ext::Color textc = UIConfiguration::instance().color (X_("gtk_foreground"));
/* draw vertical lines on both sides of the widget */
cr->set_source_rgb(0.0f, 0.0f, 0.0f);
cr->move_to(0.f, area.y0);
cr->line_to(0.f, area.y1);
cr->stroke();
cr->move_to(_alloc.width(),area.y0);
cr->line_to(_alloc.width(), area.y1);
cr->stroke();
// Render the MIDNAM text or its equivalent. First, set up a clip
// region so that the text doesn't spill, regardless of its length.
cr->save();
cr->rectangle (0,0,_scroomer_size, _alloc.height () );
cr->clip();
if (show_scroomer()) {
/* Draw the actual text */
for (int i = lowest; i <= highest; ++i) {
int size_x, size_y;
double y = floor(_view.midi_context().note_to_y(i)) - 0.5f;
NoteName const & note (note_names[i]);
_midnam_layout->set_text (note.name);
set_source_rgba(cr, textc);
cr->move_to(2.f, y);
if (!_mini_map_display) {
_midnam_layout->show_in_cairo_context (cr);
} else {
/* Too small for text, just show a thing rect where the
text would have been.
*/
if (!note.from_midnam) {
set_source_rgba(cr, textc);
}
pango_layout_get_pixel_size (_midnam_layout->gobj (), &size_x, &size_y);
cr->rectangle (2.f, y + (av_note_height * 0.5), size_x, av_note_height * 0.2);
cr->fill ();
}
}
/* Add a gradient over the text, to act as a sort of "visual
elision". This avoids using text elision with "..." which takes up too
much space.
*/
Gtkmm2ext::Color bg = UIConfiguration::instance().color (X_("gtk_background"));
double r,g,b,a;
Gtkmm2ext::color_to_rgba(bg,r,g,b,a);
double fade_width = 30.;
auto gradient_ptr = Cairo::LinearGradient::create (_scroomer_size - fade_width, 0, _scroomer_size, 0);
gradient_ptr->add_color_stop_rgba (0,r,g,b,0);
gradient_ptr->add_color_stop_rgba (1,r,g,b,1);
cr->set_source (gradient_ptr);
cr->rectangle (_scroomer_size - fade_width, 0, _scroomer_size, _alloc.height () );
cr->fill();
}
/* Now draw the semi-transparent scroomer over the top */
render_scroomer(cr);
/* Done with clip region */
cr->restore();
/* Now draw black/white rects for each note, following standard piano
layout, but without a setback/offset for the black keys
*/
for (int i = lowest; i <= highest; ++i) {
oct_rel = i % 12;
switch (oct_rel) {
case 1:
case 3:
case 6:
case 8:
case 10:
/* black note */
if (i == _highlighted_note) {
bg = black_highlight;
} else {
bg = black;
}
/* draw black separators */
cr->set_source_rgb (0.0f, 0.0f, 0.0f);
get_path (i, x, y);
create_path (cr, x, y, 0, 1);
cr->stroke();
get_path (i, x, y);
create_path (cr, x, y, 0, 1);
cr->stroke();
get_path (i, x, y);
render_rect (cr, i, x, y, bg);
break;
}
switch(oct_rel) {
case 0:
case 2:
case 4:
case 5:
case 7:
case 9:
case 11:
if (i == _highlighted_note) {
bg = white_highlight;
} else {
bg = white;
}
get_path (i, x, y);
render_rect (cr, i, x, y, bg);
break;
default:
break;
}
}
/* render the C<N> of the key, when key is too small to contain text we
place the C<N> on the midnam scroomer area.
we render an additional 5 notes below the lowest note displayed
so that the top of the C is shown to maintain visual context
*/
for (int i = lowest - 5; i <= highest; ++i) {
double y = floor(_view.midi_context().note_to_y(i)) - 0.5f;
double note_height = i == 0? av_note_height : floor(_view.midi_context().note_to_y(i - 1)) - y;
oct_rel = i % 12;
if (oct_rel == 0 || (oct_rel == 7 && _adj.get_page_size() <=10) ) {
std::stringstream s;
int cn = i / 12 - 1;
if (oct_rel == 0){
s << "C" << cn;
}else{
s << "G" << cn;
}
if (av_note_height > 12.0){
set_source_rgba(cr, black);
_layout->set_text (s.str());
cr->move_to(_scroomer_size, ceil(y+1.));
_layout->show_in_cairo_context (cr);
}else{
set_source_rgba(cr, textc);
_big_c_layout->set_text (s.str());
pango_layout_get_pixel_size (_big_c_layout->gobj(), &bc_width, &bc_height);
cr->move_to(_scroomer_size - 18, y - bc_height + av_note_height);
_big_c_layout->show_in_cairo_context (cr);
cr->move_to(_scroomer_size - 18, y + note_height);
cr->line_to(_scroomer_size, y + note_height);
cr->stroke();
}
}
}
}
void
PianoRollHeader::instrument_info_change ()
{
have_note_names = false;
for (int i = 0; i < 128; ++i) {
note_names[i] = get_note_name (i);
if (note_names[i].from_midnam) {
have_note_names = true;
}
}
queue_resize ();
/* need this to get editor to potentially sync all
track header widths if our piano roll header changes
width.
*/
_view.midi_track()->gui_changed ("visible_tracks", (void *) 0); /* EMIT SIGNAL */
}
PianoRollHeader::NoteName
PianoRollHeader::get_note_name (int note)
{
using namespace MIDI::Name;
std::string name;
std::string note_n;
NoteName rtn;
#if 0
MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*>(&_view.trackview());
if (mtv) {
string chn = mtv->gui_property (X_("midnam-channel"));
if (!chn.empty()) {
int midnam_channel;
sscanf (chn.c_str(), "%*s %d", &midnam_channel);
midnam_channel--;
name = mtv->route()->instrument_info ().get_note_name (
0, //bank
0, //program
midnam_channel, //channel
note); //note
}
}
int oct_rel = note % 12;
switch (oct_rel) {
case 0:
note_n = "C";
break;
case 1:
note_n = "C♯";
break;
case 2:
note_n = "D";
break;
case 3:
note_n = "D♯";
break;
case 4:
note_n = "E";
break;
case 5:
note_n = "F";
break;
case 6:
note_n = "F♯";
break;
case 7:
note_n = "G";
break;
case 8:
note_n = "G♯";
break;
case 9:
note_n = "A";
break;
case 10:
note_n = "A♯";
break;
case 11:
note_n = "B";
break;
default:
break;
}
#endif
std::string new_string = std::string(3 - std::to_string(note).length(), '0') + std::to_string(note);
rtn.name = name.empty()? new_string + " " + note_n : name;
rtn.from_midnam = !name.empty();
return rtn;
}
bool
PianoRollHeader::motion_handler (GdkEventMotion* ev)
{
if (!_scroomer_drag && ev->x < _scroomer_size){
Gdk::Cursor m_Cursor;
double scroomer_top = max(1.0, (1.0 - ((_adj.get_value()+_adj.get_page_size()) / 127.0)) * _alloc.height());
double scroomer_bottom = (1.0 - (_adj.get_value () / 127.0)) * _alloc.height();
if (ev->y > scroomer_top - 5 && ev->y < scroomer_top + 5){
m_Cursor = Gdk::Cursor (Gdk::TOP_SIDE);
// XXX _canvas->set_cursor(m_Cursor);
_scroomer_state = TOP;
}else if (ev->y > scroomer_bottom - 5 && ev->y < scroomer_bottom + 5){
m_Cursor = Gdk::Cursor (Gdk::BOTTOM_SIDE);
// XXXX _canvas->set_cursor(m_Cursor);
_scroomer_state = BOTTOM;
}else {
_scroomer_state = MOVE;
// XXXX _canvas->set_cursor();
}
}
if (_scroomer_drag){
double pixel2val = 127.0 / _alloc.height();
double delta = _old_y - ev->y;
double val_at_pointer = (delta * pixel2val);
double real_val_at_pointer = 127.0 - (ev->y * pixel2val);
double note_range = _adj.get_page_size ();
switch (_scroomer_button_state){
case MOVE:
_fract += val_at_pointer;
_fract = (_fract + note_range > 127.0)? 127.0 - note_range : _fract;
_fract = max(0.0, _fract);
_adj.set_value (min(_fract, 127.0 - note_range));
break;
case TOP:
real_val_at_pointer = real_val_at_pointer <= _saved_top_val? _adj.get_value() + _adj.get_page_size() : real_val_at_pointer;
real_val_at_pointer = min(127.0, real_val_at_pointer);
if (_note_height >= UIConfiguration::instance().get_max_note_height()){
_saved_top_val = min(_adj.get_value() + _adj.get_page_size (), 127.0);
} else {
_saved_top_val = 0.0;
}
//if we are at largest note size & the user is moving down don't do anything
//FIXME we are using a heuristic of 18.5 for max note size, but this changes when track size is small to 19.5?
_view.midi_context().apply_note_range (_adj.get_value (), real_val_at_pointer, true);
break;
case BOTTOM:
real_val_at_pointer = max(0.0, real_val_at_pointer);
real_val_at_pointer = real_val_at_pointer >= _saved_bottom_val? _adj.get_value() : real_val_at_pointer;
if (_note_height >= UIConfiguration::instance().get_max_note_height()){
_saved_bottom_val = _adj.get_value();
} else {
_saved_bottom_val = 127.0;
}
_view.midi_context().apply_note_range (real_val_at_pointer, _adj.get_value () + _adj.get_page_size (), true);
break;
default:
break;
}
}else{
int note = _view.midi_context().y_to_note(ev->y);
set_note_highlight (note);
if (_dragging) {
if ( false /*editor().current_mouse_mode() == Editing::MouseRange*/ ) { //ToDo: fix this. this mode is buggy, and of questionable utility anyway
/* select note range */
if (Keyboard::no_modifiers_active (ev->state)) {
AddNoteSelection (note); // EMIT SIGNAL
}
} else {
/* play notes */
/* redraw already taken care of above in set_note_highlight */
if (_clicked_note != NO_MIDI_NOTE && _clicked_note != note) {
_active_notes[_clicked_note] = false;
send_note_off(_clicked_note);
_clicked_note = note;
if (!_active_notes[note]) {
_active_notes[note] = true;
send_note_on(note);
}
}
}
}
}
_adj.value_changed ();
redraw ();
_old_y = ev->y;
//win->process_updates(false);
return true;
}
bool
PianoRollHeader::button_press_handler (GdkEventButton* ev)
{
_scroomer_button_state = _scroomer_state;
if (ev->button == 1 && ev->x <= _scroomer_size){
if (ev->type == GDK_2BUTTON_PRESS) {
#if 0
MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*>(&_view.trackview());
if (mtv) {
mtv->set_note_range (MidiStreamView::ContentsRange, false);
}
#endif
return true;
}
_scroomer_drag = true;
_old_y = ev->y;
_fract = _adj.get_value();
_fract_top = _adj.get_value() + _adj.get_page_size();
return true;
} else {
int note = _view.midi_context().y_to_note(ev->y);
bool tertiary = Keyboard::modifier_state_contains (ev->state, Keyboard::TertiaryModifier);
bool primary = Keyboard::modifier_state_contains (ev->state, Keyboard::PrimaryModifier);
if (ev->button == 1 && ev->type == GDK_2BUTTON_PRESS) {
if (primary) {
_adj.set_value (0.0);
_adj.set_page_size (127.0);
_adj.value_changed ();
redraw ();
return false;
}
return false;
} else if (ev->button == 2 && Keyboard::no_modifiers_active (ev->state)) {
SetNoteSelection (note); // EMIT SIGNAL
return true;
} else if (tertiary && (ev->button == 1 || ev->button == 2)) {
ExtendNoteSelection (note); // EMIT SIGNAL
return true;
} else if (primary && (ev->button == 1 || ev->button == 2)) {
ToggleNoteSelection (note); // EMIT SIGNAL
return true;
} else if (ev->button == 1 && note >= 0 && note < 128) {
grab ();
_dragging = true;
if (!_active_notes[note]) {
_active_notes[note] = true;
_clicked_note = note;
send_note_on(note);
invalidate_note_range(note, note);
} else {
reset_clicked_note(note);
}
}
}
return true;
}
bool
PianoRollHeader::button_release_handler (GdkEventButton* ev)
{
if (_scroomer_drag){
_scroomer_drag = false;
}
int note = _view.midi_context().y_to_note(ev->y);
if (false /*editor().current_mouse_mode() == Editing::MouseRange*/) { //Todo: this mode is buggy, and of questionable utility anyway
if (Keyboard::no_modifiers_active (ev->state)) {
AddNoteSelection (note); // EMIT SIGNAL
} else if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
ToggleNoteSelection (note); // EMIT SIGNAL
} else if (Keyboard::modifier_state_equals (ev->state, Keyboard::RangeSelectModifier)) {
ExtendNoteSelection (note); // EMIT SIGNAL
}
} else {
if (_dragging) {
ungrab ();
if (note == _clicked_note) {
reset_clicked_note (note);
}
}
}
_dragging = false;
return true;
}
void
PianoRollHeader::set_note_highlight (uint8_t note)
{
if (_highlighted_note == note) {
return;
}
if (_highlighted_note != NO_MIDI_NOTE) {
if (note > _highlighted_note) {
invalidate_note_range (_highlighted_note, note);
} else {
invalidate_note_range (note, _highlighted_note);
}
}
_highlighted_note = note;
if (_highlighted_note != NO_MIDI_NOTE) {
invalidate_note_range (_highlighted_note, _highlighted_note);
}
}
bool
PianoRollHeader::enter_handler (GdkEventCrossing* ev)
{
set_note_highlight (_view.midi_context().y_to_note (ev->y));
entered = true;
redraw ();
return true;
}
bool
PianoRollHeader::leave_handler (GdkEventCrossing*)
{
if (!_scroomer_drag){
// XXX _canvas->set_cursor();
}
invalidate_note_range(_highlighted_note, _highlighted_note);
if (_clicked_note != NO_MIDI_NOTE) {
reset_clicked_note (_clicked_note, _clicked_note != _highlighted_note);
}
_highlighted_note = NO_MIDI_NOTE;
entered = false;
redraw ();
return true;
}
void
PianoRollHeader::note_range_changed ()
{
_note_height = floor (_view.midi_context().note_height ()) + 0.5f;
redraw ();
}
void
PianoRollHeader::invalidate_note_range (int lowest, int highest)
{
lowest = max((int) _view.midi_context().lowest_note(), lowest - 1);
highest = min((int) _view.midi_context().highest_note(), highest + 2);
double y = _view.midi_context().note_to_y (highest);
double height = _view.midi_context().note_to_y (lowest - 1) - y;
dynamic_cast<ArdourCanvas::GtkCanvas*>(_canvas)->queue_draw_area (0., floor (y), _alloc.width(), floor (height));
}
bool
PianoRollHeader::show_scroomer () const
{
Editing::NoteNameDisplay nnd = UIConfiguration::instance().get_note_name_display();
if (nnd == Editing::Never) {
return false;
}
switch (_view.editing_context().current_mouse_mode()) {
case Editing::MouseDraw:
case Editing::MouseContent:
if (nnd == Editing::WithMIDNAM) {
return have_note_names;
} else {
return true;
}
default:
break;
}
return false;
}
void
PianoRollHeader::send_note_on (uint8_t note)
{
std::shared_ptr<ARDOUR::MidiTrack> track = _view.midi_track ();
//cerr << "note on: " << (int) note << endl;
if (track) {
_event[0] = (MIDI_CMD_NOTE_ON | _view.midi_context().get_preferred_midi_channel ());
_event[1] = note;
_event[2] = 100;
track->write_user_immediate_event (Evoral::MIDI_EVENT, 3, _event);
}
}
void
PianoRollHeader::send_note_off (uint8_t note)
{
std::shared_ptr<ARDOUR::MidiTrack> track = _view.midi_track ();
if (track) {
_event[0] = (MIDI_CMD_NOTE_OFF | _view.midi_context().get_preferred_midi_channel ());
_event[1] = note;
_event[2] = 100;
track->write_user_immediate_event (Evoral::MIDI_EVENT, 3, _event);
}
}
void
PianoRollHeader::reset_clicked_note (uint8_t note, bool invalidate)
{
_active_notes[note] = false;
_clicked_note = NO_MIDI_NOTE;
send_note_off (note);
if (invalidate) {
invalidate_note_range (note, note);
}
}
void
PianoRollHeader::set_min_page_size(double page_size)
{
_min_page_size = page_size;
};
}

142
gtk2_ardour/prh.h Normal file
View File

@ -0,0 +1,142 @@
/*
* Copyright (C) 2008-2009 David Robillard <d@drobilla.net>
* Copyright (C) 2010-2012 Paul Davis <paul@linuxaudiosystems.com>
*
* 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.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef __ardour_canvas_piano_roll_header_h__
#define __ardour_canvas_piano_roll_header_h__
#include <pangomm/layout.h>
#include <glibmm/refptr.h>
#include "ardour/types.h"
#include "canvas/rectangle.h"
namespace ARDOUR {
class MidiTrack;
}
class MidiView;
class MidiViewBackground;
class EditingContext;
namespace ArdourCanvas {
class PianoRollHeader : public ArdourCanvas::Rectangle {
public:
PianoRollHeader (ArdourCanvas::Item* parent, MidiView&);
void render (ArdourCanvas::Rect const & area, Cairo::RefPtr<Cairo::Context>) const;
void size_allocate (ArdourCanvas::Rect const &);
void instrument_info_change ();
void note_range_changed();
void set_note_highlight (uint8_t note);
sigc::signal<void,uint8_t> SetNoteSelection;
sigc::signal<void,uint8_t> AddNoteSelection;
sigc::signal<void,uint8_t> ToggleNoteSelection;
sigc::signal<void,uint8_t> ExtendNoteSelection;
private:
bool motion_handler (GdkEventMotion*);
bool button_press_handler (GdkEventButton*);
bool button_release_handler (GdkEventButton*);
bool scroll_handler (GdkEventScroll*);
bool enter_handler (GdkEventCrossing*);
bool leave_handler (GdkEventCrossing*);
// void on_size_request(Gtk::Requisition*);
struct NoteName {
std::string name;
bool from_midnam;
};
NoteName note_names[128];
bool have_note_names;
void set_min_page_size(double page_size);
void render_scroomer(Cairo::RefPtr<Cairo::Context>) const;
NoteName get_note_name (int note);
Gtk::Adjustment& _adj;
PianoRollHeader(const PianoRollHeader&);
enum ItemType {
BLACK_SEPARATOR,
BLACK_MIDDLE_SEPARATOR,
BLACK,
WHITE_SEPARATOR,
WHITE_RECT,
WHITE_CF,
WHITE_EB,
WHITE_DGA
};
void invalidate_note_range(int lowest, int highest);
void get_path(int note, double x[], double y[]) const;
void send_note_on(uint8_t note);
void send_note_off(uint8_t note);
void reset_clicked_note(uint8_t, bool invalidate = true);
MidiView& _view;
uint8_t _event[3];
mutable Glib::RefPtr<Pango::Layout> _layout;
mutable Glib::RefPtr<Pango::Layout> _big_c_layout;
mutable Glib::RefPtr<Pango::Layout> _midnam_layout;
mutable Pango::FontDescription _font_descript;
Pango::FontDescription _font_descript_big_c;
mutable Pango::FontDescription _font_descript_midnam;
bool _active_notes[128];
uint8_t _highlighted_note;
uint8_t _clicked_note;
double _grab_y;
bool _dragging;
double _scroomer_size;
bool _scroomer_drag;
double _old_y;
double _fract;
double _fract_top;
mutable double _raw_note_height;
double _min_page_size;
enum scr_pos {TOP, BOTTOM, MOVE, NONE};
scr_pos _scroomer_state;
scr_pos _scroomer_button_state;
double _saved_top_val;
double _saved_bottom_val;
mutable bool _mini_map_display;
bool entered;
double _note_height;
double _old_av_note_height;
bool show_scroomer () const;
ArdourCanvas::Rect _alloc;
};
}
#endif /* __ardour_piano_roll_header_h__ */

3
gtk2_ardour/wscript
View File

@ -234,7 +234,8 @@ gtk2_ardour_sources = [
'port_matrix_grid.cc',
'port_matrix_labels.cc',
'port_matrix_row_labels.cc',
'processor_box.cc',
'prh.cc',
'processor_box.cc',
'processor_selection.cc',
'patch_change_dialog.cc',
'progress_reporter.cc',