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livetrax/gtk2_ardour/time_axis_view.h
Paul Davis 7e19053b88 Fix dragging objects on the canvas and remove redundant canvas groups
Delivery of fake motion events to the editor needed the event coordinates to be
in canvas space, as they are with "real" events. Editor and other objects had
many redundant groups from timbyr's work on gnomecanvas to scroll by moving
groups. We don't need this anymore with cairo-canvas (though possibly a
stationay background group for the canvas might be useful again one day as in
the SAE logo. Its implementation would be fairly different though, since we
would have to explicitly move the group on every scroll, since nothing else
ever moves on scroll).

Also tweaks to text item placement, and switch TimeAxisViewItem from
name_pixbuf to name_text, since ArdourCanvas::Text is already "pixbuf optimized".
2013-04-15 13:50:05 -04:00

301 lines
8.6 KiB
C++

/*
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"
namespace ARDOUR {
class Session;
class Region;
class Session;
class RouteGroup;
class Playlist;
}
namespace Gtk {
class Menu;
}
namespace ArdourCanvas {
class Canvas;
class Group;
class Item;
}
class PublicEditor;
class RegionSelection;
class TimeSelection;
class PointSelection;
class TimeAxisViewItem;
class Selection;
class Selectable;
class RegionView;
class GhostRegion;
class StreamView;
class ArdourDialog;
/** 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* 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);
virtual guint32 show_at (double y, int& nth, Gtk::VBox *parent);
virtual void hide ();
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*, double> 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_pixel (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, int layers, int layer);
virtual void hide_timestretch ();
/* 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::Label name_label;
bool _name_editing;
uint32_t height; /* in canvas units */
std::string controls_base_unselected_name;
std::string controls_base_selected_name;
Gtk::Menu* display_menu; /* The standard LHS Track control popup-menus */
TimeAxisView* parent;
ArdourCanvas::Group* selection_group;
std::list<GhostRegion*> ghosts;
std::list<SelectionRect*> free_selection_rects;
std::list<SelectionRect*> used_selection_rects;
bool _hidden;
bool in_destructor;
Gtk::Menu* _size_menu;
ArdourCanvas::Group* _canvas_display;
double _y_position;
PublicEditor& _editor;
virtual bool can_edit_name() const;
bool name_entry_key_release (GdkEventKey *ev);
bool name_entry_key_press (GdkEventKey *ev);
bool name_entry_focus_out (GdkEventFocus *ev);
Gtk::Entry* name_entry;
void begin_name_edit ();
void end_name_edit (int);
/* derived classes can override these */
virtual void name_entry_changed ();
/** 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; }
Children children;
bool is_child (TimeAxisView*);
virtual void remove_child (boost::shared_ptr<TimeAxisView>);
void add_child (boost::shared_ptr<TimeAxisView>);
/* selection display */
virtual void selection_click (GdkEventButton*);
void color_handler ();
void conditionally_add_to_selection ();
void build_size_menu ();
private:
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;
bool _ebox_release_can_act;
static uint32_t button_height;
static uint32_t extra_height;
static int const _max_order;
void compute_heights ();
bool maybe_set_cursor (int y);
}; /* class TimeAxisView */
#endif /* __ardour_gtk_time_axis_h__ */