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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 {
/// dividing the hue circle in 16 parts, hand adjusted for equal look, courtesy Thorsten Wilms
const uint32_t CanvasNoteEvent::midi_channel_colors[16] = {
0xd32d2dff, 0xd36b2dff, 0xd3972dff, 0xd3d12dff,
0xa0d32dff, 0x7dd32dff, 0x2dd45eff, 0x2dd3c4ff,
0x2da5d3ff, 0x2d6fd3ff, 0x432dd3ff, 0x662dd3ff,
0x832dd3ff, 0xa92dd3ff, 0xd32dbfff, 0xd32d67ff
};
CanvasNoteEvent::CanvasNoteEvent(MidiRegionView& region, Item* item,
const boost::shared_ptr<NoteType> note)
: _region(region)
, _item(item)
, _text(0)
, _channel_selector_widget()
, _state(None)
, _note(note)
, _selected(false)
, _valid (true)
{
}
CanvasNoteEvent::~CanvasNoteEvent()
{
if (_text) {
_text->hide();
delete _text;
}
delete _channel_selector_widget;
}
void
CanvasNoteEvent::invalidate ()
{
_valid = false;
}
void
CanvasNoteEvent::validate ()
{
_valid = true;
}
void
CanvasNoteEvent::show_velocity()
{
if (!_text) {
_text = new InteractiveText(*(_item->property_parent()), this);
}
_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_MidiNoteVelocityText.get();
_text->show();
_text->raise_to_top();
}
void
CanvasNoteEvent::hide_velocity()
{
if (_text) {
_text->hide();
delete _text;
_text = 0;
}
}
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_MidiNoteInactiveChannel.get());
set_outline_color(calculate_outline(ARDOUR_UI::config()->canvasvar_MidiNoteInactiveChannel.get()));
} else {
// set the color according to the notes selection state
selected(_selected);
}
// 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 selected)
{
if (!_note) {
return;
} else if (selected) {
set_fill_color(UINT_INTERPOLATE(base_color(),
ARDOUR_UI::config()->canvasvar_MidiNoteSelected.get(), 0.5));
set_outline_color(calculate_outline(
ARDOUR_UI::config()->canvasvar_MidiNoteSelected.get()));
} else {
set_fill_color(base_color());
set_outline_color(calculate_outline(base_color()));
}
_selected = selected;
}
#define SCALE_USHORT_TO_UINT8_T(x) ((x) / 257)
uint32_t
CanvasNoteEvent::base_color()
{
using namespace ARDOUR;
ColorMode mode = _region.color_mode();
const uint8_t min_opacity = 15;
uint8_t opacity = std::max(min_opacity, uint8_t(_note->velocity() + _note->velocity()));
switch (mode) {
case TrackColor:
{
Gdk::Color color = _region.midi_stream_view()->get_region_color();
return RGBA_TO_UINT(
SCALE_USHORT_TO_UINT8_T(color.get_red()),
SCALE_USHORT_TO_UINT8_T(color.get_green()),
SCALE_USHORT_TO_UINT8_T(color.get_blue()),
opacity);
}
case ChannelColors:
return UINT_RGBA_CHANGE_A(CanvasNoteEvent::midi_channel_colors[_note->channel()],
opacity);
default:
return meter_style_fill_color(_note->velocity());
};
return 0;
}
bool
CanvasNoteEvent::on_event(GdkEvent* ev)
{
PublicEditor& editor (_region.get_time_axis_view().editor());
if (!editor.internal_editing()) {
return false;
}
switch (ev->type) {
case GDK_ENTER_NOTIFY:
_region.note_entered(this);
//Keyboard::magic_widget_grab_focus();
break;
case GDK_LEAVE_NOTIFY:
//Keyboard::magic_widget_drop_focus();
_region.note_left (this);
if (!selected()) {
hide_velocity();
}
break;
case GDK_BUTTON_PRESS:
if (ev->button.button == 3) {
show_channel_selector();
return true;
}
break;
case GDK_BUTTON_RELEASE:
if (ev->button.button == 3) {
return true;
}
break;
default:
break;
}
return false;
}
} // namespace Canvas
} // namespace Gnome
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