Paul Davis
ac19bedc3d
git-svn-id: svn://localhost/ardour2/branches/3.0@11160 d708f5d6-7413-0410-9779-e7cbd77b26cf
375 lines
9.0 KiB
C++
375 lines
9.0 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 "canvas-note-event.h"
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#include "midi_region_view.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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using namespace std;
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using namespace Gtkmm2ext;
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using ARDOUR::MidiModel;
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namespace Gnome {
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namespace Canvas {
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PBD::Signal1<void,CanvasNoteEvent*> CanvasNoteEvent::CanvasNoteEventDeleted;
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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 CanvasNoteEvent::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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CanvasNoteEvent::CanvasNoteEvent(MidiRegionView& region, Item* item, const boost::shared_ptr<NoteType> note)
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: _region(region)
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, _item(item)
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, _text(0)
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, _channel_selector_widget()
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, _state(None)
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, _note(note)
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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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, _channel_selection (0xffff)
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{
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}
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CanvasNoteEvent::~CanvasNoteEvent()
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{
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CanvasNoteEventDeleted (this);
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if (_text) {
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_text->hide();
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delete _text;
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}
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delete _channel_selector_widget;
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}
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void
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CanvasNoteEvent::invalidate ()
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{
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_valid = false;
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}
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void
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CanvasNoteEvent::validate ()
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{
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_valid = true;
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}
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void
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CanvasNoteEvent::show_velocity()
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{
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if (!_text) {
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_text = new NoEventText (*(_item->property_parent()));
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_text->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiNoteVelocityText.get();
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_text->property_justification() = Gtk::JUSTIFY_CENTER;
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}
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_text->property_x() = (x1() + x2()) /2;
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_text->property_y() = (y1() + y2()) /2;
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ostringstream velo(ios::ate);
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velo << int(_note->velocity());
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_text->property_text() = 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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CanvasNoteEvent::hide_velocity()
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{
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if (_text) {
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_text->hide();
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delete _text;
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_text = 0;
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}
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}
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void
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CanvasNoteEvent::on_channel_selection_change(uint16_t selection)
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{
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_channel_selection = selection;
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/* this takes into account whether or not the note should be drawn as inactive */
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set_selected (_selected);
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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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CanvasNoteEvent::on_channel_change(uint8_t channel)
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{
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_region.note_selected(this, true);
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hide_channel_selector();
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_region.change_channel(channel);
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}
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void
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CanvasNoteEvent::show_channel_selector(void)
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{
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if (_channel_selector_widget == 0) {
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if(_region.channel_selector_scoped_note() != 0){
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_region.channel_selector_scoped_note()->hide_channel_selector();
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_region.set_channel_selector_scoped_note(0);
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}
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SingleMidiChannelSelector* _channel_selector = new SingleMidiChannelSelector(_note->channel());
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_channel_selector->show_all();
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_channel_selector->channel_selected.connect(
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sigc::mem_fun(this, &CanvasNoteEvent::on_channel_change));
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_channel_selector->clicked.connect (
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sigc::mem_fun (this, &CanvasNoteEvent::hide_channel_selector));
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_channel_selector_widget = new Widget(*(_item->property_parent()),
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x1(),
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y2() + 2,
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(Gtk::Widget &) *_channel_selector);
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_channel_selector_widget->hide();
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_channel_selector_widget->property_height() = 100;
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_channel_selector_widget->property_width() = 100;
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_channel_selector_widget->raise_to_top();
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_channel_selector_widget->show();
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_region.set_channel_selector_scoped_note(this);
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} else {
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hide_channel_selector();
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}
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}
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void
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CanvasNoteEvent::hide_channel_selector(void)
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{
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if (_channel_selector_widget) {
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_channel_selector_widget->hide();
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delete _channel_selector_widget;
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_channel_selector_widget = 0;
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}
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}
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void
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CanvasNoteEvent::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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bool const active = (_channel_selection & (1 << _note->channel())) != 0;
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if (_selected && active) {
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set_outline_color(calculate_outline(ARDOUR_UI::config()->canvasvar_MidiNoteSelected.get()));
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if(_region.channel_selector_scoped_note() != 0){
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_region.channel_selector_scoped_note()->hide_channel_selector();
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_region.set_channel_selector_scoped_note(0);
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}
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set_fill_color (base_color ());
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} else {
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if (active) {
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set_fill_color(base_color());
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set_outline_color(calculate_outline(base_color()));
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} else {
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set_fill_color(ARDOUR_UI::config()->canvasvar_MidiNoteInactiveChannel.get());
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set_outline_color(calculate_outline(ARDOUR_UI::config()->canvasvar_MidiNoteInactiveChannel.get()));
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}
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hide_channel_selector();
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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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CanvasNoteEvent::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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Gdk::Color color = _region.midi_stream_view()->get_region_color();
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return UINT_INTERPOLATE (RGBA_TO_UINT(
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SCALE_USHORT_TO_UINT8_T(color.get_red()),
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SCALE_USHORT_TO_UINT8_T(color.get_green()),
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SCALE_USHORT_TO_UINT8_T(color.get_blue()),
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opacity),
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ARDOUR_UI::config()->canvasvar_MidiNoteSelected.get(), 0.5);
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}
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case ChannelColors:
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return UINT_INTERPOLATE (UINT_RGBA_CHANGE_A (CanvasNoteEvent::midi_channel_colors[_note->channel()],
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opacity),
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ARDOUR_UI::config()->canvasvar_MidiNoteSelected.get(), 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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CanvasNoteEvent::set_mouse_fractions (GdkEvent* ev)
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{
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double ix, iy;
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double bx1, bx2, by1, by2;
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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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_item->get_bounds (bx1, by1, bx2, by2);
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_item->w2i (ix, iy);
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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 - bx1;
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iy = iy - by1;
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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 / (bx2 - bx1);
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yf = iy / (by2 - by1);
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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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CanvasNoteEvent::on_event(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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set_mouse_fractions (ev);
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_region.note_entered (this);
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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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show_channel_selector();
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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 false;
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}
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bool
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CanvasNoteEvent::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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CanvasNoteEvent::big_enough_to_trim () const
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{
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return (x2() - x1()) > 20; /* canvas units, really pixels */
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}
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} // namespace Canvas
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} // namespace Gnome
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