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-rw-r--r--gtk2_ardour/canvas-note-event.cc353
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diff --git a/gtk2_ardour/canvas-note-event.cc b/gtk2_ardour/canvas-note-event.cc
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+/*
+ Copyright (C) 2007 Paul Davis
+ Author: Dave Robillard
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include <iostream>
+#include "canvas-note-event.h"
+#include "midi_region_view.h"
+#include "public_editor.h"
+#include "editing_syms.h"
+#include "keyboard.h"
+
+using namespace std;
+using ARDOUR::MidiModel;
+
+namespace Gnome {
+namespace Canvas {
+
+
+CanvasNoteEvent::CanvasNoteEvent(MidiRegionView& region, Item* item,
+ const boost::shared_ptr<ARDOUR::Note> note)
+ : _region(region)
+ , _item(item)
+ , _text(0)
+ , _channel_selector_widget()
+ , _state(None)
+ , _note(note)
+ , _selected(false)
+{
+ _text = new Text(*(item->property_parent()));
+}
+
+CanvasNoteEvent::~CanvasNoteEvent()
+{
+ if(_text) delete _text;
+ if(_channel_selector_widget) delete _channel_selector_widget;
+}
+
+void
+CanvasNoteEvent::move_event(double dx, double dy)
+{
+ _item->move(dx, dy);
+ _text->move(dx, dy);
+}
+
+void
+CanvasNoteEvent::show_velocity(void)
+{
+ _text->property_x() = (x1() + x2()) /2;
+ _text->property_y() = (y1() + y2()) /2;
+ ostringstream velo(ios::ate);
+ velo << int(_note->velocity());
+ _text->property_text() = velo.str();
+ _text->property_justification() = Gtk::JUSTIFY_CENTER;
+ _text->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MidiNoteSelectedOutline.get();
+ _text->show();
+ _text->lower_to_bottom();
+ _text->raise(2);
+}
+
+void
+CanvasNoteEvent::hide_velocity(void)
+{
+ _text->hide();
+}
+
+void
+CanvasNoteEvent::on_channel_selection_change(uint16_t selection)
+{
+ // make note change its color if its channel is not marked active
+ if( (selection & (1 << _note->channel())) == 0 ) {
+ set_fill_color(ARDOUR_UI::config()->canvasvar_MidiNoteFillInactiveChannel.get());
+ set_outline_color(ARDOUR_UI::config()->canvasvar_MidiNoteOutlineInactiveChannel.get());
+ } else {
+ set_fill_color(note_fill_color(_note->velocity()));
+ set_outline_color(note_outline_color(_note->velocity()));
+ }
+ // this forces the item to update..... maybe slow...
+ _item->hide();
+ _item->show();
+}
+
+void
+CanvasNoteEvent::on_channel_change(uint8_t channel)
+{
+ _region.note_selected(this, true);
+ hide_channel_selector();
+ _region.change_channel(channel);
+}
+
+void
+CanvasNoteEvent::show_channel_selector(void)
+{
+ if(_channel_selector_widget == 0) {
+ cerr << "Note has channel: " << int(_note->channel()) << endl;
+ SingleMidiChannelSelector* _channel_selector = new SingleMidiChannelSelector(_note->channel());
+ _channel_selector->show_all();
+ _channel_selector->channel_selected.connect(
+ sigc::mem_fun(this, &CanvasNoteEvent::on_channel_change));
+
+ _channel_selector_widget =
+ new Widget(*(_item->property_parent()),
+ x1(),
+ y2() + 2,
+ (Gtk::Widget &) *_channel_selector);
+
+ _channel_selector_widget->hide();
+ _channel_selector_widget->property_height() = 100;
+ _channel_selector_widget->property_width() = 100;
+ _channel_selector_widget->raise_to_top();
+ _channel_selector_widget->show();
+ } else {
+ hide_channel_selector();
+ }
+}
+
+void
+CanvasNoteEvent::hide_channel_selector(void)
+{
+ if(_channel_selector_widget) {
+ _channel_selector_widget->hide();
+ delete _channel_selector_widget;
+ _channel_selector_widget = 0;
+ }
+}
+
+void
+CanvasNoteEvent::selected(bool yn)
+{
+ if (!_note) {
+ return;
+ } else if (yn) {
+ set_fill_color(UINT_INTERPOLATE(note_fill_color(_note->velocity()),
+ ARDOUR_UI::config()->canvasvar_MidiNoteSelectedOutline.get(), 0.1));
+ set_outline_color(ARDOUR_UI::config()->canvasvar_MidiNoteSelectedOutline.get());
+ show_velocity();
+ } else {
+ set_fill_color(note_fill_color(_note->velocity()));
+ set_outline_color(note_outline_color(_note->velocity()));
+ hide_velocity();
+ }
+
+ _selected = yn;
+}
+
+
+bool
+CanvasNoteEvent::on_event(GdkEvent* ev)
+{
+ MidiStreamView *streamview = _region.midi_stream_view();
+ static uint8_t drag_delta_note = 0;
+ static double drag_delta_x = 0;
+ static double last_x, last_y;
+ double event_x, event_y, dx, dy;
+ bool select_mod;
+ uint8_t d_velocity = 10;
+
+ if (_region.get_time_axis_view().editor.current_mouse_mode() != Editing::MouseNote)
+ return false;
+
+ switch (ev->type) {
+ case GDK_SCROLL:
+ if (Keyboard::modifier_state_equals (ev->scroll.state, Keyboard::Level4Modifier)) {
+ d_velocity = 1;
+ }
+
+ if(ev->scroll.direction == GDK_SCROLL_UP) {
+ _region.note_selected(this, true);
+ if (_region.mouse_state() == MidiRegionView::SelectTouchDragging) {
+ // TODO: absolute velocity
+ } else {
+ _region.change_velocity(d_velocity, true);
+ }
+ return true;
+ } else if(ev->scroll.direction == GDK_SCROLL_DOWN) {
+ _region.note_selected(this, true);
+ if (_region.mouse_state() == MidiRegionView::SelectTouchDragging) {
+ // TODO: absolute velocity
+ } else {
+ _region.change_velocity(-d_velocity, true);
+ }
+ return true;
+ } else {
+ return false;
+ }
+
+ case GDK_KEY_PRESS:
+ if (_note && ev->key.keyval == GDK_Delete) {
+ selected(true);
+ _region.start_delta_command();
+ _region.command_remove_note(this);
+ }
+ break;
+
+ case GDK_KEY_RELEASE:
+ if (ev->key.keyval == GDK_Delete) {
+ _region.apply_command();
+ }
+ break;
+
+ case GDK_ENTER_NOTIFY:
+ _region.note_entered(this);
+ _item->grab_focus();
+ show_velocity();
+ Keyboard::magic_widget_grab_focus();
+ break;
+
+ case GDK_LEAVE_NOTIFY:
+ Keyboard::magic_widget_drop_focus();
+ if(! selected()) {
+ hide_velocity();
+ }
+ _region.get_canvas_group()->grab_focus();
+ break;
+
+ case GDK_BUTTON_PRESS:
+ if (ev->button.button == 1) {
+ _state = Pressed;
+ } else if (ev->button.button == 3) {
+ show_channel_selector();
+ }
+ return true;
+
+ case GDK_MOTION_NOTIFY:
+ event_x = ev->motion.x;
+ event_y = ev->motion.y;
+
+ switch (_state) {
+ case Pressed: // Drag begin
+ if (_region.mouse_state() != MidiRegionView::SelectTouchDragging) {
+ _item->grab(GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
+ Gdk::Cursor(Gdk::FLEUR), ev->motion.time);
+ _state = Dragging;
+ _item->property_parent().get_value()->w2i(event_x, event_y);
+ event_x = _region.snap_to_pixel(event_x);
+ last_x = event_x;
+ last_y = event_y;
+ drag_delta_x = 0;
+ drag_delta_note = 0;
+ _region.note_selected(this, true);
+ }
+ return true;
+
+ case Dragging: // Drag motion
+ if (ev->motion.is_hint) {
+ int t_x;
+ int t_y;
+ GdkModifierType state;
+ gdk_window_get_pointer(ev->motion.window, &t_x, &t_y, &state);
+ event_x = t_x;
+ event_y = t_y;
+ }
+ _item->property_parent().get_value()->w2i(event_x, event_y);
+
+ // Snap
+ event_x = _region.snap_to_pixel(event_x);
+
+ dx = event_x - last_x;
+ dy = event_y - last_y;
+
+ last_x = event_x;
+
+ drag_delta_x += dx;
+
+ // Snap to note rows
+ if (abs(dy) < streamview->note_height()) {
+ dy = 0.0;
+ } else {
+ int8_t this_delta_note;
+ if (dy > 0) {
+ this_delta_note = (int8_t)ceil(dy / streamview->note_height() / 2.0);
+ } else {
+ this_delta_note = (int8_t)floor(dy / streamview->note_height() / 2.0);
+ }
+ drag_delta_note -= this_delta_note;
+ dy = streamview->note_height() * this_delta_note;
+ last_y = last_y + dy;
+ }
+
+ _region.move_selection(dx, dy);
+
+ return true;
+ default:
+ break;
+ }
+ break;
+
+ case GDK_BUTTON_RELEASE:
+ select_mod = (ev->motion.state & (GDK_CONTROL_MASK | GDK_SHIFT_MASK));
+ event_x = ev->button.x;
+ event_y = ev->button.y;
+ _item->property_parent().get_value()->w2i(event_x, event_y);
+
+ if(ev->button.button == 3) {
+ return true;
+ }
+
+ switch (_state) {
+ case Pressed: // Clicked
+ if (_region.midi_view()->editor.current_midi_edit_mode() == Editing::MidiEditSelect) {
+ _state = None;
+
+ if (_selected && !select_mod && _region.selection_size() > 1)
+ _region.unique_select(this);
+ else if (_selected)
+ _region.note_deselected(this, select_mod);
+ else
+ _region.note_selected(this, select_mod);
+ } else if (_region.midi_view()->editor.current_midi_edit_mode() == Editing::MidiEditErase) {
+ _region.start_delta_command();
+ _region.command_remove_note(this);
+ _region.apply_command();
+ }
+
+ return true;
+ case Dragging: // Dropped
+ _item->ungrab(ev->button.time);
+ _state = None;
+
+ if (_note)
+ _region.note_dropped(this,
+ _region.midi_view()->editor.pixel_to_frame(abs(drag_delta_x))
+ * ((drag_delta_x < 0.0) ? -1 : 1),
+ drag_delta_note);
+ return true;
+ default:
+ break;
+ }
+
+ default:
+ break;
+ }
+
+ return false;
+}
+
+} // namespace Canvas
+} // namespace Gnome
+
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