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livetrax/gtk2_ardour/time_axis_view.h

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/*
Copyright (C) 2003 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 __ardour_gtk_time_axis_h__
#define __ardour_gtk_time_axis_h__
#include <vector>
#include <list>
#include <gtkmm/box.h>
#include <gtkmm/frame.h>
#include <gtkmm/drawingarea.h>
#include <gtkmm/eventbox.h>
#include <gtkmm/table.h>
#include <gtkmm/entry.h>
#include <gtkmm/label.h>
#include <gtkmm2ext/focus_entry.h>
#include "pbd/stateful.h"
#include "pbd/signals.h"
#include "ardour/types.h"
#include "ardour/region.h"
#include "evoral/Parameter.hpp"
#include "prompter.h"
#include "axis_view.h"
#include "enums.h"
#include "editing.h"
#include "canvas.h"
namespace ARDOUR {
class Session;
class Region;
class Session;
class RouteGroup;
class Playlist;
}
namespace Gtk {
class Menu;
}
class PublicEditor;
class RegionSelection;
class TimeSelection;
class PointSelection;
class TimeAxisViewItem;
class Selection;
class Selectable;
class RegionView;
class GhostRegion;
class StreamView;
/** Abstract base class for time-axis views (horizontal editor 'strips')
*
* This class provides the basic LHS controls and display methods. This should be
* extended to create functional time-axis based views.
*/
class TimeAxisView : public virtual AxisView
{
private:
enum NamePackingBits {
NameLabelPacked = 0x1,
NameEntryPacked = 0x2
};
public:
TimeAxisView(ARDOUR::Session* sess, PublicEditor& ed, TimeAxisView* parent, ArdourCanvas::Canvas& canvas);
virtual ~TimeAxisView ();
static PBD::Signal1<void,TimeAxisView*> CatchDeletion;
/** @return index of this TimeAxisView within its parent */
int order () const { return _order; }
/** @return maximum allowable value of order */
static int max_order () { return _max_order; }
virtual void enter_internal_edit_mode () {}
virtual void leave_internal_edit_mode () {}
ArdourCanvas::Group* canvas_display () { return _canvas_display; }
ArdourCanvas::Group* canvas_background () { return _canvas_background; }
ArdourCanvas::Group* ghost_group () { return _ghost_group; }
/** @return effective height (taking children into account) in canvas units, or
0 if this TimeAxisView has not yet been shown */
uint32_t effective_height () const { return _effective_height; }
/** @return y position, or -1 if hidden */
double y_position () const { return _y_position; }
/** @return our Editor */
PublicEditor& editor () const { return _editor; }
uint32_t current_height() const { return height; }
void idle_resize (uint32_t);
void hide_name_label ();
void hide_name_entry ();
void show_name_label ();
void show_name_entry ();
virtual guint32 show_at (double y, int& nth, Gtk::VBox *parent);
virtual void hide ();
void clip_to_viewport ();
bool touched (double top, double bot);
/** @return true if hidden, otherwise false */
bool hidden () const { return _hidden; }
void set_selected (bool);
/**
* potential handler for entered events
*/
virtual void entered () {}
virtual void exited () {}
virtual void set_height (uint32_t h);
void set_height_enum (Height, bool apply_to_selection = false);
void reset_height();
virtual void reset_visual_state ();
std::pair<TimeAxisView*, ARDOUR::layer_t> covers_y_position (double);
virtual void step_height (bool);
virtual ARDOUR::RouteGroup* route_group() const { return 0; }
virtual boost::shared_ptr<ARDOUR::Playlist> playlist() const { return boost::shared_ptr<ARDOUR::Playlist> (); }
virtual void set_samples_per_unit (double);
virtual void show_selection (TimeSelection&);
virtual void hide_selection ();
virtual void reshow_selection (TimeSelection&);
virtual void show_timestretch (framepos_t start, framepos_t end);
virtual void hide_timestretch ();
virtual void hide_dependent_views (TimeAxisViewItem&) {}
virtual void reveal_dependent_views (TimeAxisViewItem&) {}
/* editing operations */
virtual void cut_copy_clear (Selection&, Editing::CutCopyOp) {}
virtual bool paste (ARDOUR::framepos_t, float /*times*/, Selection&, size_t /*nth*/) { return false; }
virtual void set_selected_regionviews (RegionSelection&) {}
virtual void set_selected_points (PointSelection&) {}
virtual boost::shared_ptr<ARDOUR::Region> find_next_region (framepos_t /*pos*/, ARDOUR::RegionPoint, int32_t /*dir*/) {
return boost::shared_ptr<ARDOUR::Region> ();
}
void order_selection_trims (ArdourCanvas::Item *item, bool put_start_on_top);
virtual void get_selectables (ARDOUR::framepos_t, ARDOUR::framepos_t, double, double, std::list<Selectable*>&);
virtual void get_inverted_selectables (Selection&, std::list<Selectable *>& results);
void add_ghost (RegionView*);
void remove_ghost (RegionView*);
void erase_ghost (GhostRegion*);
/** called at load time when first GUI idle occurs. put
expensive data loading/redisplay code in here. */
virtual void first_idle () {}
TimeAxisView* get_parent () { return parent; }
void set_parent (TimeAxisView& p);
virtual LayerDisplay layer_display () const { return Overlaid; }
virtual StreamView* view () const { return 0; }
typedef std::vector<boost::shared_ptr<TimeAxisView> > Children;
Children get_child_list ();
SelectionRect* get_selection_rect(uint32_t id);
static uint32_t preset_height (Height);
protected:
/* The Standard LHS Controls */
Gtk::HBox controls_hbox;
Gtk::Table controls_table;
Gtk::EventBox controls_ebox;
Gtk::VBox controls_vbox;
Gtk::VBox time_axis_vbox;
Gtk::HBox name_hbox;
Gtk::Frame name_frame;
Gtkmm2ext::FocusEntry name_entry;
uint32_t height; /* in canvas units */
std::string controls_base_unselected_name;
std::string controls_base_selected_name;
bool name_entry_button_press (GdkEventButton *ev);
bool name_entry_button_release (GdkEventButton *ev);
bool name_entry_key_release (GdkEventKey *ev);
void name_entry_activated ();
sigc::connection name_entry_key_timeout;
bool name_entry_key_timed_out ();
guint32 last_name_entry_key_press_event;
/* derived classes can override these */
virtual void name_entry_changed ();
virtual bool name_entry_focus_in (GdkEventFocus *ev);
virtual bool name_entry_focus_out (GdkEventFocus *ev);
/** Handle mouse relaese on our LHS control name ebox.
*
*@ param ev the event
*/
virtual bool controls_ebox_button_release (GdkEventButton*);
virtual bool controls_ebox_scroll (GdkEventScroll*);
virtual bool controls_ebox_button_press (GdkEventButton*);
virtual bool controls_ebox_motion (GdkEventMotion*);
virtual bool controls_ebox_leave (GdkEventCrossing*);
/** Display the standard LHS control menu at when.
*
* @param when the popup activation time
*/
virtual void popup_display_menu (guint32 when);
/** Build the standard LHS control menu.
* Subclasses should extend this method to add their own menu options.
*/
virtual void build_display_menu ();
/** Do whatever needs to be done to dynamically reset the LHS control menu.
*/
virtual bool handle_display_menu_map_event (GdkEventAny * /*ev*/) { return false; }
/* The standard LHS Track control popup-menus */
Gtk::Menu *display_menu;
Gtk::Label name_label;
TimeAxisView* parent;
Children children;
bool is_child (TimeAxisView*);
void remove_child (boost::shared_ptr<TimeAxisView>);
void add_child (boost::shared_ptr<TimeAxisView>);
/* selection display */
ArdourCanvas::Group *selection_group;
std::list<GhostRegion*> ghosts;
std::list<SelectionRect*> free_selection_rects;
std::list<SelectionRect*> used_selection_rects;
virtual void selection_click (GdkEventButton*);
bool _hidden;
bool _has_state;
bool in_destructor;
NamePackingBits name_packing;
void set_heights (uint32_t h);
void color_handler ();
void conditionally_add_to_selection ();
void build_size_menu ();
Gtk::Menu* _size_menu;
ArdourCanvas::Group* _canvas_display;
double _y_position;
PublicEditor& _editor;
private:
ArdourCanvas::Group* _canvas_background;
Gtk::VBox* control_parent;
int _order;
uint32_t _effective_height;
double _resize_drag_start;
GdkCursor* _preresize_cursor;
bool _have_preresize_cursor;
ArdourCanvas::Group* _ghost_group;
void compute_heights ();
static uint32_t button_height;
static uint32_t extra_height;
static int const _max_order;
bool maybe_set_cursor (int y);
}; /* class TimeAxisView */
#endif /* __ardour_gtk_time_axis_h__ */