diff options
Diffstat (limited to 'libs/surfaces/maschine2/ui_menu.cc')
| -rw-r--r-- | libs/surfaces/maschine2/ui_menu.cc | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/libs/surfaces/maschine2/ui_menu.cc b/libs/surfaces/maschine2/ui_menu.cc new file mode 100644 index 0000000000..75d41ef2e4 --- /dev/null +++ b/libs/surfaces/maschine2/ui_menu.cc @@ -0,0 +1,215 @@ +/* + * Copyright (C) 2016 Paul Davis + * Copyright (C) 2016 Robin Gareus <robin@gareus.org> + * + * 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, 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + */ + +#include <cairomm/context.h> +#include <cairomm/surface.h> +#include <cairomm/region.h> +#include <pangomm/layout.h> + +#include "pbd/i18n.h" + +#include "gtkmm2ext/colors.h" + +#include "canvas/text.h" +#include "canvas/types.h" +#include "canvas/rectangle.h" + +#include "maschine2.h" +#include "m2controls.h" + +#include "canvas.h" +#include "ui_menu.h" + +#ifdef __APPLE__ +#define Rect ArdourCanvas::Rect +#endif + +using namespace ARDOUR; +using namespace std; +using namespace PBD; +using namespace Glib; +using namespace ArdourSurface; +using namespace ArdourCanvas; + +Maschine2Menu::Maschine2Menu (PBD::EventLoop* el, Item* parent, const std::vector<std::string>& s, double width) + : Container (parent) + , _ctrl (0) + , _eventloop (el) + , _baseline (-1) + , _height (-1) + , _width (width) + , _active (0) + , _wrap (false) + , _first (0) + , _last (0) + , _rotary (0) +{ + Pango::FontDescription fd ("Sans 10px"); + + Maschine2Canvas* m2c = dynamic_cast<Maschine2Canvas*> (canvas()); + Glib::RefPtr<Pango::Layout> throwaway = Pango::Layout::create (m2c->image_context()); + throwaway->set_font_description (fd); + throwaway->set_text (X_("Hg")); /* ascender + descender) */ + int h, w; + throwaway->get_pixel_size (w, h); + _baseline = ceil(h); + _height = m2c->height(); + + _active_bg = new ArdourCanvas::Rectangle (this); + _active_bg->set_fill_color (0xffffffff); + + for (vector<string>::const_iterator i = s.begin(); i != s.end(); ++i) { + Text* t = new Text (this); + t->set_font_description (fd); + t->set_color (0xffffffff); + t->set (*i); + _displays.push_back (t); + } + rearrange (0); +} + +Maschine2Menu::~Maschine2Menu () +{ +} + +void +Maschine2Menu::rearrange (uint32_t initial_display) +{ + vector<Text*>::iterator i = _displays.begin(); + + Duple origin = item_to_window (Duple (0, 0)); + + for (uint32_t n = 0; n < initial_display; ++n) { + (*i)->hide (); + ++i; + } + + uint32_t index = initial_display; + uint32_t row = 0; + bool active_shown = false; + + _first = _last = index; + while (i != _displays.end()) { + Coord y = row * _baseline; + if (y + _baseline + origin.y > _height) { + break; + } + (*i)->set_position (Duple (2, y)); + + if (index == _active) { + (*i)->set_color (0x000000ff); + active_shown = true; + _active_bg->set (Rect (0, y - 1, 64, y - 1 + _baseline)); + _active_bg->show (); + } else { + (*i)->set_color (0xffffffff); + } + _last = index; + (*i)->show (); + ++i; + ++index; + ++row; + } + + while (i != _displays.end()) { + (*i)->hide (); + ++i; + } + + if (!active_shown) { + _active_bg->hide (); + } +} + +void +Maschine2Menu::render (Rect const& area, Cairo::RefPtr<Cairo::Context> context) const +{ + context->save (); + Duple origin = item_to_window (Duple (0, 0)); + context->rectangle (origin.x, origin.y, _width, _height); + context->clip (); + render_children (area, context); + context->restore (); +} + +void +Maschine2Menu::set_active (uint32_t a) +{ + if (a == _active || a > items ()) { + return; + } + + _active = a; + + if (_active < _first) { + rearrange (_active); + } + else if (_active > _last) { + rearrange (_active - _last); + } else { + rearrange (_first); + } + redraw (); +} + +void +Maschine2Menu::set_wrap (bool b) +{ + if (b == _wrap) { + return; + } + _wrap = b; +} + +void +Maschine2Menu::set_control (M2EncoderInterface* ctrl) +{ + encoder_connection.disconnect (); + _ctrl = ctrl; + if (!ctrl) { + return; + } + ctrl->changed.connect_same_thread (encoder_connection, boost::bind (&Maschine2Menu::encoder_changed, this, _1)); +} + +void +Maschine2Menu::encoder_changed (int delta) +{ + assert (_ctrl); + if (items() == 0) { + return; + } + double d = delta * 8. / _ctrl->range (); + d = fmodf (d, items()); + if (_wrap) { + _rotary = fmodf (items () + _rotary + d, items()); + } else { + _rotary += + d; + if (_rotary < 0) { _rotary = 0; } + if (_rotary >= items ()) { _rotary = items () - 1; } + } + + uint32_t a = floor (_rotary); + + if (a == _active) { + return; + } + set_active (a); + ActiveChanged (); /* EMIT SIGNAL */ +} |