beatbox_gui.h

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/*
    Copyright (C) 2017 Paul Davis
 
    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.
 
*/
 
#ifndef __gtk2_ardour_beatbox_gui_h__
#define __gtk2_ardour_beatbox_gui_h__
 
#include <memory>
#include <string>
 
#include <gtkmm/radiobutton.h>
#include <gtkmm/togglebutton.h>
#include <gtkmm/button.h>
#include <gtkmm/scrollbar.h>
#include <gtkmm/spinbutton.h>
#include <gtkmm/box.h>
#include <gtkmm/notebook.h>
 
#include "gtkmm2ext/colors.h"
 
#include "widgets/ardour_button.h"
 
#include "canvas/box.h"
#include "canvas/canvas.h"
#include "canvas/constraint_packer.h"
#include "canvas/rectangle.h"
 
#include "ardour/step_sequencer.h"
 
#include "widgets/ardour_button.h"
#include "widgets/ardour_dropdown.h"
#include "ardour_dialog.h"
 
namespace PBD {
class PropertyChange;
}
 
namespace ArdourCanvas {
class Item;
class StepButton;
class Polygon;
class Text;
class VBox;
class Widget;
}
 
namespace ARDOUR {
class BeatBox;
}
 
class SequencerView;
class SequenceView;
class StepView;
class FloatingTextEntry;
class SequencerStepIndicator;
 
class SequencerView : public ArdourCanvas::ConstraintPacker, public sigc::trackable {
  public:
        enum Mode {
                Velocity,
                Pitch,
                Duration,
                Octave,
                Group,
                Timing,
        };
 
        SequencerView (ARDOUR::StepSequencer&, ArdourCanvas::Item*);
 
        ARDOUR::StepSequencer& sequencer() const { return _sequencer; }
 
        SequenceView& sequence_view (size_t n) const;
 
        Mode mode() const { return _mode; }
        void set_mode (Mode m);
 
        void render (ArdourCanvas::Rect const &, Cairo::RefPtr<Cairo::Context>) const;
        void update ();
 
        static double rhs_xoffset;
        static double mode_button_width;
        static double mode_button_height;
        static double mode_button_spacing;
        static double mode_button_xdim;
        static double mode_button_ydim;
 
  private:
        ARDOUR::StepSequencer& _sequencer;
        typedef std::vector<SequencerStepIndicator*> StepIndicators;
        StepIndicators step_indicators;
        typedef std::vector<SequenceView*> SequenceViews;
        SequenceViews sequence_views;
 
        double _width;
        double _height;
        Mode   _mode;
        ArdourCanvas::ConstraintPacker* button_packer;
 
        ArdourCanvas::ConstraintPacker* step_indicator_box;
 
        ArdourCanvas::ConstraintPacker* sequence_hbox;
        ArdourCanvas::ConstraintPacker* lhs_vbox;
        ArdourCanvas::ConstraintPacker* steps_vbox;
        ArdourCanvas::ConstraintPacker* rhs_vbox;
 
        ArdourCanvas::Rectangle* velocity_mode_button;
        ArdourCanvas::Rectangle* pitch_mode_button;
        ArdourCanvas::Rectangle* octave_mode_button;
        ArdourCanvas::Rectangle* gate_mode_button;
        ArdourCanvas::Rectangle* timing_mode_button;
 
        ArdourCanvas::Text* velocity_mode_text;
        ArdourCanvas::Text* pitch_mode_text;
        ArdourCanvas::Text* octave_mode_text;
        ArdourCanvas::Text* gate_mode_text;
        ArdourCanvas::Text* timing_mode_text;
 
        static Gtkmm2ext::Color current_mode_color;
        static Gtkmm2ext::Color not_current_mode_color;
 
        void sequencer_changed (PBD::PropertyChange const &);
        bool mode_button_event (GdkEvent*, SequencerView::Mode);
 
        PBD::ScopedConnection sequencer_connection;
 
};
 
class SequenceView : public sigc::trackable
{
  public:
        SequenceView (SequencerView&, ARDOUR::StepSequence&, ArdourCanvas::Canvas* canvas);
 
        void view_mode_changed ();
        SequencerView::Mode mode() const { return sv.mode(); }
        ARDOUR::StepSequencer& sequencer() const  { return sv.sequencer(); }
 
        ArdourCanvas::ConstraintPacker* lhs_box;
        ArdourCanvas::ConstraintPacker* rhs_box;
        ArdourCanvas::ConstraintPacker* step_box;
 
   private:
        SequencerView& sv;
        ARDOUR::StepSequence& sequence;
 
        ArdourCanvas::Text* number_text;
        ArdourCanvas::Text* name_text;
        ArdourCanvas::Text* root_text;
        ArdourCanvas::Rectangle* step_cnt_button;
        ArdourCanvas::Rectangle* speed_slide;
 
        bool name_text_event (GdkEvent*);
        void edit_name ();
        void name_edited (std::string, int);
 
        FloatingTextEntry* floating_entry;
 
        typedef std::vector<StepView*> StepViews;
        StepViews step_views;
 
        void sequence_changed ();
        PBD::ScopedConnection sequence_connection;
};
 
class StepView : public ArdourCanvas::Rectangle, public sigc::trackable {
   public:
        StepView (SequenceView&, ARDOUR::Step&, ArdourCanvas::Canvas* canvas);
 
        void render (ArdourCanvas::Rect const &, Cairo::RefPtr<Cairo::Context>) const;
        bool on_event (GdkEvent*);
 
        void view_mode_changed ();
        ARDOUR::StepSequencer& sequencer() const  { return sv.sequencer(); }
 
   private:
        ARDOUR::Step& _step;
        SequenceView& sv;
        ArdourCanvas::Text* text;
        bool grabbed;
 
        std::pair<double,double> grab_at;
        std::pair<double,double> last_motion;
 
        bool motion_event (GdkEventMotion*);
        bool button_press_event (GdkEventButton*);
        bool button_release_event (GdkEventButton*);
        bool scroll_event (GdkEventScroll*);
 
        void adjust_step_pitch (int amt);
        void adjust_step_velocity (int amt);
        void adjust_step_duration (ARDOUR::Step::DurationRatio const &);
        void adjust_step_octave (int amt);
        void adjust_step_timing (double fract);
 
        void step_changed (PBD::PropertyChange const &);
        PBD::ScopedConnection step_connection;
 
        void set_octave_text ();
        void set_group_text ();
        void set_timing_text ();
 
        static Gtkmm2ext::Color on_fill_color;
        static Gtkmm2ext::Color off_fill_color;
};
 
class SequencerStepIndicator : public ArdourCanvas::Rectangle, public sigc::trackable {
  public:
        SequencerStepIndicator (SequencerView&, ArdourCanvas::Canvas*, size_t n);
        void render (ArdourCanvas::Rect const &, Cairo::RefPtr<Cairo::Context>) const;
        bool on_event (GdkEvent*);
 
        void set_current (bool);
 
  private:
        SequencerView& sv;
        size_t number;
        ArdourCanvas::Polygon* poly;
        ArdourCanvas::Text*    text;
        bool being_dragged;
 
        static int dragging;
 
        bool motion_event (GdkEventMotion*);
        bool button_press_event (GdkEventButton*);
        bool button_release_event (GdkEventButton*);
 
        void set_text ();
 
        void sequencer_changed (PBD::PropertyChange const &);
        PBD::ScopedConnection sequencer_connection;
 
        static Gtkmm2ext::Color current_color;
        static Gtkmm2ext::Color other_color;
        static Gtkmm2ext::Color current_text_color;
        static Gtkmm2ext::Color other_text_color;
        static Gtkmm2ext::Color bright_outline_color;
};
 
class BBGUI : public ArdourDialog {
  public:
        BBGUI (std::shared_ptr<ARDOUR::BeatBox> bb);
        ~BBGUI ();
 
        double width() const { return _width; }
        double height() const { return _height; }
 
  protected:
        void on_map ();
        void on_unmap ();
 
  private:
        std::shared_ptr<ARDOUR::BeatBox> bbox;
        double _width;
        double _height;
 
        Gtk::Adjustment horizontal_adjustment;
        Gtk::Adjustment vertical_adjustment;
 
        ArdourCanvas::GtkCanvasViewport* _canvas_viewport;
        ArdourCanvas::GtkCanvas* _canvas;
 
        SequencerView* _sequencer;
 
        ArdourWidgets::ArdourButton start_button;
        void toggle_play ();
 
        ArdourWidgets::ArdourButton export_as_region_button;
        void export_as_region ();
 
        Gtk::HBox canvas_hbox;
        Gtk::VScrollbar vscrollbar;
 
        void clear ();
        void update ();
        void update_sequencer ();
 
        sigc::connection timer_connection;
 
        void sequencer_changed (PBD::PropertyChange const &);
        PBD::ScopedConnection sequencer_connection;
};
 
#endif /* __gtk2_ardour_beatbox_gui_h__ */