new base class for automation lines
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gtk2_ardour/automation_line_base.cc
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gtk2_ardour/automation_line_base.cc
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gtk2_ardour/automation_line_base.h
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gtk2_ardour/automation_line_base.h
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/*
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* Copyright (C) 2005-2017 Paul Davis <paul@linuxaudiosystems.com>
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* Copyright (C) 2005 Karsten Wiese <fzuuzf@googlemail.com>
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* Copyright (C) 2005 Nick Mainsbridge <mainsbridge@gmail.com>
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* Copyright (C) 2005 Taybin Rutkin <taybin@taybin.com>
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* Copyright (C) 2006 Hans Fugal <hans@fugal.net>
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* Copyright (C) 2007-2012 Carl Hetherington <carl@carlh.net>
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* Copyright (C) 2007-2015 David Robillard <d@drobilla.net>
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* Copyright (C) 2014-2017 Robin Gareus <robin@gareus.org>
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*
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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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*
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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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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef __ardour_automation_line_base_h__
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#define __ardour_automation_line_base_h__
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#include <vector>
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#include <list>
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#include <string>
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#include <sys/types.h>
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#include <sigc++/signal.h>
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#include "pbd/undo.h"
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#include "pbd/statefuldestructible.h"
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#include "pbd/memento_command.h"
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#include "ardour/automation_list.h"
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#include "ardour/parameter_descriptor.h"
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#include "ardour/types.h"
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#include "canvas/types.h"
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#include "canvas/container.h"
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#include "canvas/poly_line.h"
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namespace ArdourCanvas {
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class Rectangle;
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}
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class AutomationLine;
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class ControlPoint;
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class PointSelection;
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class TimeAxisView;
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class AutomationTimeAxisView;
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class Selectable;
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class Selection;
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class EditingContext;
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/** A GUI representation of an ARDOUR::AutomationList */
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class AutomationLineBase : public sigc::trackable, public PBD::StatefulDestructible
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{
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public:
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enum VisibleAspects {
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Line = 0x1,
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ControlPoints = 0x2,
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SelectedControlPoints = 0x4
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};
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AutomationLineBase (const std::string& name,
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EditingContext& ec,
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ArdourCanvas::Item& parent,
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ArdourCanvas::Rectangle* drag_base,
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std::shared_ptr<ARDOUR::AutomationList> al,
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const ARDOUR::ParameterDescriptor& desc);
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virtual ~AutomationLineBase ();
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virtual Temporal::timepos_t get_origin () const;
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ArdourCanvas::Rectangle* drag_base() const { return _drag_base; }
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void queue_reset ();
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void reset ();
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void clear ();
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void set_fill (bool f) { _fill = f; } // owner needs to call set_height
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void set_selected_points (PointSelection const &);
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void get_selectables (Temporal::timepos_t const &, Temporal::timepos_t const &, double, double, std::list<Selectable*>&);
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void get_inverted_selectables (Selection&, std::list<Selectable*>& results);
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virtual void remove_point (ControlPoint&);
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bool control_points_adjacent (double xval, uint32_t& before, uint32_t& after);
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/* dragging API */
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virtual void start_drag_single (ControlPoint*, double, float);
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virtual void start_drag_line (uint32_t, uint32_t, float);
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virtual void start_drag_multiple (std::list<ControlPoint*>, float, XMLNode *);
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virtual std::pair<float, float> drag_motion (Temporal::timecnt_t const &, float, bool, bool with_push, uint32_t& final_index);
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virtual void end_drag (bool with_push, uint32_t final_index);
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virtual void end_draw_merge () {}
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ControlPoint* nth (uint32_t);
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ControlPoint const * nth (uint32_t) const;
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uint32_t npoints() const { return control_points.size(); }
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std::string name() const { return _name; }
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bool visible() const { return _visible != VisibleAspects(0); }
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guint32 height() const { return _height; }
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void set_line_color (std::string color, std::string mod = "");
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uint32_t get_line_color() const;
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void set_visibility (VisibleAspects);
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void add_visibility (VisibleAspects);
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void remove_visibility (VisibleAspects);
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void hide ();
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void set_height (guint32);
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bool get_uses_gain_mapping () const;
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void tempo_map_changed ();
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ArdourCanvas::Container& canvas_group() const { return *group; }
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ArdourCanvas::Item& parent_group() const { return _parent_group; }
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ArdourCanvas::Item& grab_item() const { return *line; }
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virtual std::string get_verbose_cursor_string (double) const;
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std::string get_verbose_cursor_relative_string (double, double) const;
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std::string fraction_to_string (double) const;
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std::string delta_to_string (double) const;
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double string_to_fraction (std::string const &) const;
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void view_to_model_coord_y (double &) const;
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double model_to_view_coord_y (double) const;
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Temporal::timecnt_t model_to_view_coord_x (Temporal::timepos_t const &) const;
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double compute_delta (double from, double to) const;
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void apply_delta (double& val, double delta) const;
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void set_list(std::shared_ptr<ARDOUR::AutomationList> list);
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std::shared_ptr<ARDOUR::AutomationList> the_list() const { return alist; }
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void track_entered();
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void track_exited();
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bool is_last_point (ControlPoint &);
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bool is_first_point (ControlPoint &);
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XMLNode& get_state () const;
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int set_state (const XMLNode&, int version);
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void set_colors();
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void modify_points_y (std::vector<ControlPoint*> const&, double);
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virtual MementoCommandBinder<ARDOUR::AutomationList>* memento_command_binder ();
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std::pair<Temporal::timepos_t, Temporal::timepos_t> get_point_x_range () const;
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void set_maximum_time (Temporal::timepos_t const &);
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Temporal::timepos_t maximum_time () const {
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return _maximum_time;
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}
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void set_offset (Temporal::timepos_t const &);
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Temporal::timepos_t offset () { return _offset; }
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void set_width (Temporal::timecnt_t const &);
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Temporal::timepos_t session_position (Temporal::timepos_t const &) const;
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void dump (std::ostream&) const;
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double dt_to_dx (Temporal::timepos_t const &, Temporal::timecnt_t const &);
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protected:
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std::string _name;
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guint32 _height;
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std::string _line_color;
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std::string _line_color_mod;
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uint32_t _view_index_offset;
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std::shared_ptr<ARDOUR::AutomationList> alist;
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VisibleAspects _visible;
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bool terminal_points_can_slide;
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bool update_pending;
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bool have_reset_timeout;
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bool no_draw;
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bool _is_boolean;
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/** true if we did a push at any point during the current drag */
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bool did_push;
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EditingContext& editing_context;
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ArdourCanvas::Item& _parent_group;
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ArdourCanvas::Rectangle* _drag_base;
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ArdourCanvas::Container* group;
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ArdourCanvas::PolyLine* line; /* line */
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ArdourCanvas::Points line_points; /* coordinates for canvas line */
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std::vector<ControlPoint*> control_points; /* visible control points */
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class ContiguousControlPoints : public std::list<ControlPoint*> {
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public:
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ContiguousControlPoints (AutomationLineBase& al);
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Temporal::timecnt_t clamp_dt (Temporal::timecnt_t const & dx, Temporal::timepos_t const & region_limit);
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void move (Temporal::timecnt_t const &, double dvalue);
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void compute_x_bounds ();
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private:
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AutomationLineBase& line;
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Temporal::timepos_t before_x;
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Temporal::timepos_t after_x;
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};
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friend class ContiguousControlPoints;
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typedef std::shared_ptr<ContiguousControlPoints> CCP;
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std::vector<CCP> contiguous_points;
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bool sync_model_with_view_point (ControlPoint&);
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bool sync_model_with_view_points (std::list<ControlPoint*>);
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void start_drag_common (double, float);
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void reset_callback (const Evoral::ControlList&);
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void list_changed ();
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virtual bool event_handler (GdkEvent*) = 0;
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private:
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std::list<ControlPoint*> _drag_points; ///< points we are dragging
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std::list<ControlPoint*> _push_points; ///< additional points we are dragging if "push" is enabled
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bool _drag_had_movement; ///< true if the drag has seen movement, otherwise false
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double _last_drag_fraction; ///< last y position of the drag, as a fraction
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/** offset from the start of the automation list to the start of the line, so that
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* a +ve offset means that the 0 on the line is at _offset in the list
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*/
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Temporal::timepos_t _offset;
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bool is_stepped() const;
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void update_visibility ();
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void reset_line_coords (ControlPoint&);
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void add_visible_control_point (uint32_t, uint32_t, double, double, ARDOUR::AutomationList::iterator, uint32_t);
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double control_point_box_size ();
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void connect_to_list ();
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void interpolation_changed (ARDOUR::AutomationList::InterpolationStyle);
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PBD::ScopedConnectionList _list_connections;
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/** maximum time that a point on this line can be at, relative to the position of its region or start of its track */
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Temporal::timepos_t _maximum_time;
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bool _fill;
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const ARDOUR::ParameterDescriptor _desc;
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friend class AudioRegionGainLine;
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friend class RegionFxLine;
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};
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#endif /* __ardour_automation_line_base_h__ */
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