315 lines
7.1 KiB
C++
315 lines
7.1 KiB
C++
/*
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Copyright (C) 2007 Paul Davis
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Author: David Robillard
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <iostream>
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#include "gtkmm2ext/keyboard.h"
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#include "evoral/Note.hpp"
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#include "canvas/text.h"
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#include "note_base.h"
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#include "public_editor.h"
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#include "editing_syms.h"
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#include "keyboard.h"
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#include "midi_region_view.h"
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using namespace std;
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using namespace Gtkmm2ext;
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using ARDOUR::MidiModel;
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using namespace ArdourCanvas;
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PBD::Signal1<void,NoteBase*> NoteBase::NoteBaseDeleted;
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/// dividing the hue circle in 16 parts, hand adjusted for equal look, courtesy Thorsten Wilms
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const uint32_t NoteBase::midi_channel_colors[16] = {
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0xd32d2dff, 0xd36b2dff, 0xd3972dff, 0xd3d12dff,
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0xa0d32dff, 0x7dd32dff, 0x2dd45eff, 0x2dd3c4ff,
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0x2da5d3ff, 0x2d6fd3ff, 0x432dd3ff, 0x662dd3ff,
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0x832dd3ff, 0xa92dd3ff, 0xd32dbfff, 0xd32d67ff
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};
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NoteBase::NoteBase(MidiRegionView& region, bool with_events, const boost::shared_ptr<NoteType> note)
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: _region(region)
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, _item (0)
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, _text(0)
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, _state(None)
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, _note(note)
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, _with_events (with_events)
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, _selected(false)
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, _valid (true)
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, _mouse_x_fraction (-1.0)
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, _mouse_y_fraction (-1.0)
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{
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}
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NoteBase::~NoteBase()
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{
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NoteBaseDeleted (this);
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delete _text;
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}
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void
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NoteBase::set_item (Item* item)
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{
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_item = item;
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_item->set_data ("notebase", this);
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if (_with_events) {
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_item->Event.connect (sigc::mem_fun (*this, &NoteBase::event_handler));
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}
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}
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void
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NoteBase::invalidate ()
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{
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_valid = false;
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}
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void
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NoteBase::validate ()
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{
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_valid = true;
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}
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void
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NoteBase::show_velocity()
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{
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if (!_text) {
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_text = new Text (_item->parent ());
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_text->set_ignore_events (true);
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_text->set_color (ARDOUR_UI::config()->color ("midi note velocity text"));
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_text->set_alignment (Pango::ALIGN_CENTER);
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}
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_text->set_x_position ((x0() + x1()) / 2);
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_text->set_y_position ((y0() + y1()) / 2);
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ostringstream velo(ios::ate);
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velo << int(_note->velocity());
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_text->set (velo.str ());
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_text->show();
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_text->raise_to_top();
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}
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void
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NoteBase::hide_velocity()
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{
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delete _text;
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_text = 0;
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}
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void
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NoteBase::on_channel_selection_change(uint16_t selection)
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{
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// make note change its color if its channel is not marked active
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if ( (selection & (1 << _note->channel())) == 0 ) {
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set_fill_color(ARDOUR_UI::config()->color ("midi note inactive channel"));
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set_outline_color(calculate_outline(ARDOUR_UI::config()->color ("midi note inactive channel")));
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} else {
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// set the color according to the notes selection state
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set_selected(_selected);
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}
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// this forces the item to update..... maybe slow...
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_item->hide();
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_item->show();
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}
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void
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NoteBase::on_channel_change(uint8_t channel)
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{
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_region.note_selected(this, true);
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_region.change_channel(channel);
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}
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void
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NoteBase::set_selected(bool selected)
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{
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if (!_note) {
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return;
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}
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_selected = selected;
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set_fill_color (base_color());
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if (_selected) {
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set_outline_color(calculate_outline(ARDOUR_UI::config()->color ("midi note selected")));
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} else {
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set_outline_color(calculate_outline(base_color()));
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}
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}
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#define SCALE_USHORT_TO_UINT8_T(x) ((x) / 257)
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uint32_t
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NoteBase::base_color()
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{
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using namespace ARDOUR;
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ColorMode mode = _region.color_mode();
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const uint8_t min_opacity = 15;
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uint8_t opacity = std::max(min_opacity, uint8_t(_note->velocity() + _note->velocity()));
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switch (mode) {
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case TrackColor:
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{
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uint32_t color = _region.midi_stream_view()->get_region_color();
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return UINT_INTERPOLATE (UINT_RGBA_CHANGE_A (color, opacity),
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ARDOUR_UI::config()->color ("midi note selected"),
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0.5);
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}
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case ChannelColors:
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return UINT_INTERPOLATE (UINT_RGBA_CHANGE_A (NoteBase::midi_channel_colors[_note->channel()], opacity),
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ARDOUR_UI::config()->color ("midi note selected"), 0.5);
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default:
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return meter_style_fill_color(_note->velocity(), selected());
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};
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return 0;
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}
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void
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NoteBase::set_mouse_fractions (GdkEvent* ev)
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{
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double ix, iy;
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bool set_cursor = false;
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switch (ev->type) {
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case GDK_MOTION_NOTIFY:
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ix = ev->motion.x;
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iy = ev->motion.y;
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set_cursor = true;
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break;
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case GDK_ENTER_NOTIFY:
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ix = ev->crossing.x;
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iy = ev->crossing.y;
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set_cursor = true;
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break;
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case GDK_BUTTON_PRESS:
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case GDK_BUTTON_RELEASE:
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ix = ev->button.x;
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iy = ev->button.y;
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break;
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default:
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_mouse_x_fraction = -1.0;
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_mouse_y_fraction = -1.0;
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return;
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}
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boost::optional<ArdourCanvas::Rect> bbox = _item->bounding_box ();
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assert (bbox);
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_item->canvas_to_item (ix, iy);
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/* XXX: CANVAS */
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/* hmm, something wrong here. w2i should give item-local coordinates
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but it doesn't. for now, finesse this.
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*/
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ix = ix - bbox.get().x0;
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iy = iy - bbox.get().y0;
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/* fraction of width/height */
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double xf;
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double yf;
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bool notify = false;
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xf = ix / bbox.get().width ();
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yf = iy / bbox.get().height ();
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if (xf != _mouse_x_fraction || yf != _mouse_y_fraction) {
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notify = true;
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}
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_mouse_x_fraction = xf;
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_mouse_y_fraction = yf;
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if (notify) {
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if (big_enough_to_trim()) {
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_region.note_mouse_position (_mouse_x_fraction, _mouse_y_fraction, set_cursor);
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} else {
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/* pretend the mouse is in the middle, because this is not big enough
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to trim right now.
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*/
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_region.note_mouse_position (0.5, 0.5, set_cursor);
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}
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}
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}
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bool
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NoteBase::event_handler (GdkEvent* ev)
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{
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if (!_region.get_time_axis_view().editor().internal_editing()) {
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return false;
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}
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switch (ev->type) {
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case GDK_ENTER_NOTIFY:
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_region.note_entered (this);
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set_mouse_fractions (ev);
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break;
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case GDK_LEAVE_NOTIFY:
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set_mouse_fractions (ev);
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_region.note_left (this);
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break;
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case GDK_MOTION_NOTIFY:
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set_mouse_fractions (ev);
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break;
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case GDK_BUTTON_PRESS:
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set_mouse_fractions (ev);
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if (ev->button.button == 3 && Keyboard::no_modifiers_active (ev->button.state) && _selected) {
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_region.get_time_axis_view().editor().edit_notes (_region);
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return true;
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}
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break;
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case GDK_BUTTON_RELEASE:
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set_mouse_fractions (ev);
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if (ev->button.button == 3 && Keyboard::no_modifiers_active (ev->button.state)) {
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return true;
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}
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break;
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default:
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break;
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}
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return _region.get_time_axis_view().editor().canvas_note_event (ev, _item);
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}
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bool
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NoteBase::mouse_near_ends () const
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{
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return (_mouse_x_fraction >= 0.0 && _mouse_x_fraction < 0.25) ||
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(_mouse_x_fraction >= 0.75 && _mouse_x_fraction < 1.0);
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}
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bool
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NoteBase::big_enough_to_trim () const
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{
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return (x1() - x0()) > 10;
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}
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