370 lines
9.1 KiB
C++
370 lines
9.1 KiB
C++
/*
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Copyright (C) 2007 Paul Davis
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Author: Dave 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 "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 ARDOUR::MidiModel;
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namespace Gnome {
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namespace Canvas {
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CanvasNoteEvent::CanvasNoteEvent(MidiRegionView& region, Item* item,
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const boost::shared_ptr<Evoral::Note> 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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{
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}
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CanvasNoteEvent::~CanvasNoteEvent()
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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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}
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if (_channel_selector_widget)
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delete _channel_selector_widget;
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}
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void
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CanvasNoteEvent::move_event(double dx, double dy)
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{
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_item->move(dx, dy);
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if (_text) {
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_text->hide();
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_text->move(dx, dy);
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_text->show();
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}
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}
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void
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CanvasNoteEvent::show_velocity()
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{
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hide_velocity();
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_text = new Text(*(_item->property_parent()));
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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->property_justification() = Gtk::JUSTIFY_CENTER;
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_text->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiNoteVelocityText.get();
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_text->show();
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_text->lower_to_bottom();
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_text->raise(2);
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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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}
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_text = 0;
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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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// 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()->canvasvar_MidiNoteFillInactiveChannel.get());
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set_outline_color(ARDOUR_UI::config()->canvasvar_MidiNoteOutlineInactiveChannel.get());
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} else {
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// set the color according to the notes selection state
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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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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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cerr << "Note has channel: " << int(_note->channel()) << endl;
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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_widget =
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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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} 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::selected(bool yn)
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{
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if (!_note) {
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return;
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} else if (yn) {
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set_fill_color(UINT_INTERPOLATE(note_fill_color(_note->velocity()),
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ARDOUR_UI::config()->canvasvar_MidiNoteSelectedOutline.get(), 0.1));
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set_outline_color(ARDOUR_UI::config()->canvasvar_MidiNoteSelectedOutline.get());
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show_velocity();
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} else {
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set_fill_color(note_fill_color(_note->velocity()));
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set_outline_color(note_outline_color(_note->velocity()));
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hide_velocity();
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}
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_selected = yn;
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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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MidiStreamView *streamview = _region.midi_stream_view();
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static uint8_t drag_delta_note = 0;
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static double drag_delta_x = 0;
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static double last_x, last_y;
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double event_x, event_y, dx, dy;
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bool select_mod;
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uint8_t d_velocity = 10;
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if (_region.get_time_axis_view().editor.current_mouse_mode() != Editing::MouseNote)
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return false;
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switch (ev->type) {
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case GDK_SCROLL:
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if (Keyboard::modifier_state_equals (ev->scroll.state, Keyboard::Level4Modifier)) {
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d_velocity = 1;
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}
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if (ev->scroll.direction == GDK_SCROLL_UP) {
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_region.note_selected(this, true);
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if (_region.mouse_state() == MidiRegionView::SelectTouchDragging) {
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// TODO: absolute velocity
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} else {
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_region.change_velocity(d_velocity, true);
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}
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return true;
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} else if (ev->scroll.direction == GDK_SCROLL_DOWN) {
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_region.note_selected(this, true);
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if (_region.mouse_state() == MidiRegionView::SelectTouchDragging) {
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// TODO: absolute velocity
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} else {
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_region.change_velocity(-d_velocity, true);
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}
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return true;
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} else {
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return false;
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}
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case GDK_KEY_PRESS:
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if (_note && ev->key.keyval == GDK_Delete) {
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selected(true);
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_region.start_delta_command();
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_region.command_remove_note(this);
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}
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break;
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case GDK_KEY_RELEASE:
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if (ev->key.keyval == GDK_Delete) {
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_region.apply_command();
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}
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break;
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case GDK_ENTER_NOTIFY:
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_region.note_entered(this);
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_item->grab_focus();
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show_velocity();
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Keyboard::magic_widget_grab_focus();
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break;
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case GDK_LEAVE_NOTIFY:
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Keyboard::magic_widget_drop_focus();
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if (! selected()) {
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hide_velocity();
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}
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_region.get_canvas_group()->grab_focus();
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break;
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case GDK_BUTTON_PRESS:
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if (ev->button.button == 1) {
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_state = Pressed;
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} else if (ev->button.button == 3) {
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show_channel_selector();
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}
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return true;
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case GDK_MOTION_NOTIFY:
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event_x = ev->motion.x;
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event_y = ev->motion.y;
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switch (_state) {
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case Pressed: // Drag begin
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if (_region.midi_view()->editor.current_midi_edit_mode() == Editing::MidiEditSelect
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&& _region.mouse_state() != MidiRegionView::SelectTouchDragging
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&& _region.mouse_state() != MidiRegionView::EraseTouchDragging) {
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_item->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
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Gdk::Cursor(Gdk::FLEUR), ev->motion.time);
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_state = Dragging;
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_item->property_parent().get_value()->w2i(event_x, event_y);
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event_x = _region.snap_to_pixel(event_x);
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last_x = event_x;
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last_y = event_y;
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drag_delta_x = 0;
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drag_delta_note = 0;
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_region.note_selected(this, true);
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}
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return true;
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case Dragging: // Drag motion
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if (ev->motion.is_hint) {
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int t_x;
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int t_y;
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GdkModifierType state;
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gdk_window_get_pointer(ev->motion.window, &t_x, &t_y, &state);
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event_x = t_x;
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event_y = t_y;
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}
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_item->property_parent().get_value()->w2i(event_x, event_y);
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// Snap
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event_x = _region.snap_to_pixel(event_x);
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dx = event_x - last_x;
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dy = event_y - last_y;
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last_x = event_x;
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drag_delta_x += dx;
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// Snap to note rows
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if (abs(dy) < streamview->note_height()) {
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dy = 0.0;
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} else {
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int8_t this_delta_note;
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if (dy > 0) {
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this_delta_note = (int8_t)ceil(dy / streamview->note_height() / 2.0);
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} else {
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this_delta_note = (int8_t)floor(dy / streamview->note_height() / 2.0);
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}
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drag_delta_note -= this_delta_note;
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dy = streamview->note_height() * this_delta_note;
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last_y = last_y + dy;
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}
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_region.move_selection(dx, dy);
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return true;
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default:
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break;
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}
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break;
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case GDK_BUTTON_RELEASE:
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select_mod = (ev->motion.state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK));
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event_x = ev->button.x;
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event_y = ev->button.y;
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_item->property_parent().get_value()->w2i(event_x, event_y);
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if (ev->button.button == 3) {
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return true;
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}
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switch (_state) {
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case Pressed: // Clicked
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if (_region.midi_view()->editor.current_midi_edit_mode() == Editing::MidiEditSelect) {
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_state = None;
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if (_selected && !select_mod && _region.selection_size() > 1)
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_region.unique_select(this);
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else if (_selected)
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_region.note_deselected(this, select_mod);
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else
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_region.note_selected(this, select_mod);
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} else if (_region.midi_view()->editor.current_midi_edit_mode() == Editing::MidiEditErase) {
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_region.start_delta_command();
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_region.command_remove_note(this);
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_region.apply_command();
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}
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return true;
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case Dragging: // Dropped
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_item->ungrab(ev->button.time);
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_state = None;
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if (_note)
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_region.note_dropped(this,
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_region.midi_view()->editor.pixel_to_frame(abs(drag_delta_x))
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* ((drag_delta_x < 0.0) ? -1 : 1),
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drag_delta_note);
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return true;
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default:
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break;
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}
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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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} // namespace Canvas
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} // namespace Gnome
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