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livetrax/gtk2_ardour/time_axis_view.h
Carl Hetherington f2058a3f87 Comment and (hopefully) simplify Editor::region_drag_motion_callback, fixing problems with dragging regions
to and from tracks in "stacked" display mode.  As a side-effect, enable dragging of regions between layers,
though I'm not entirely sure where this is useful or desirable just yet; dragging regions between layers
currently works in the GUI but has no effect on the model.


git-svn-id: svn://localhost/ardour2/branches/3.0@4389 d708f5d6-7413-0410-9779-e7cbd77b26cf
2009-01-06 03:18:09 +00:00

359 lines
9.7 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 <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, public PBD::Stateful
{
private:
enum NamePackingBits {
NameLabelPacked = 0x1,
NameEntryPacked = 0x2
};
public:
static uint32_t hLargest;
static uint32_t hLarge;
static uint32_t hLarger;
static uint32_t hNormal;
static uint32_t hSmaller;
static uint32_t hSmall;
TimeAxisView(ARDOUR::Session& sess, PublicEditor& ed, TimeAxisView* parent, ArdourCanvas::Canvas& canvas);
virtual ~TimeAxisView ();
XMLNode& get_state ();
int set_state (const XMLNode&);
/** @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; }
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; }
bool resizer_button_press (GdkEventButton*);
bool resizer_button_release (GdkEventButton*);
bool resizer_motion (GdkEventMotion*);
bool resizer_expose (GdkEventExpose*);
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);
void clip_to_viewport ();
bool touched (double top, double bot);
/** Hide this TrackView */
virtual void hide ();
/** @return true if hidden, otherwise false */
bool hidden () const { return _hidden; }
virtual void set_selected (bool);
/**
* potential handler for entered events
*/
virtual void entered () {}
virtual void exited () {}
virtual void set_height (uint32_t h);
void reset_height();
std::pair<TimeAxisView*, ARDOUR::layer_t> covers_y_position (double);
/**
* Steps through the defined heights for this TrackView.
* Sets bigger to true to step up in size, set to fals eot step smaller.
*
* @param bigger true if stepping should increase in size, false otherwise
*/
virtual void step_height (bool bigger);
virtual ARDOUR::RouteGroup* edit_group() const { return 0; }
virtual boost::shared_ptr<ARDOUR::Playlist> playlist() const { return boost::shared_ptr<ARDOUR::Playlist> (); }
virtual void show_feature_lines (const ARDOUR::AnalysisFeatureList&);
virtual void hide_feature_lines ();
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 (nframes_t start, nframes_t end);
virtual void hide_timestretch ();
virtual void hide_dependent_views (TimeAxisViewItem&) {}
virtual void reveal_dependent_views (TimeAxisViewItem&) {}
/* editing operations */
virtual bool cut_copy_clear (Selection&, Editing::CutCopyOp) { return false; }
virtual bool paste (nframes_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 (nframes_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 (nframes_t start, nframes_t end, double top, double bot, list<Selectable*>& results);
virtual void get_inverted_selectables (Selection&, 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);
bool has_state () const;
/* call this on the parent */
virtual XMLNode* get_automation_child_xml_node (Evoral::Parameter param) { return 0; }
virtual LayerDisplay layer_display () const { return Overlaid; }
virtual StreamView* view () const { return 0; }
typedef std::vector<boost::shared_ptr<TimeAxisView> > Children;
protected:
/* The Standard LHS Controls */
Gtk::Frame controls_frame;
Gtk::HBox controls_hbox;
Gtk::EventBox controls_lhs_pad;
Gtk::Table controls_table;
Gtk::EventBox controls_ebox;
Gtk::VBox controls_vbox;
Gtk::DrawingArea resizer;
Gtk::HBox resizer_box;
Gtk::HBox name_hbox;
Gtk::Frame name_frame;
Gtkmm2ext::FocusEntry name_entry;
uint32_t height; /* in canvas units */
string controls_base_unselected_name;
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 *ev);
virtual bool controls_ebox_scroll (GdkEventScroll *ev);
/** 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; }
/** Build the standard LHS control size menu for the default heights options.
*/
virtual void build_size_menu();
/** Displays the standard LHS controls size menu for the track heights
*
* @param when the popup activation time
*/
void popup_size_menu(guint32 when);
/** Handle the size option of our main menu.
*
* @param ev the event
*/
gint size_click(GdkEventButton *ev);
/* The standard LHS Track control popup-menus */
Gtk::Menu *display_menu;
Gtk::Menu *size_menu;
Gtk::Label name_label;
TimeAxisView* parent;
/** Find the parent with state */
TimeAxisView* get_parent_with_state();
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;
list<GhostRegion*> ghosts;
list<SelectionRect*> free_selection_rects;
list<SelectionRect*> used_selection_rects;
SelectionRect* get_selection_rect(uint32_t id);
virtual void selection_click (GdkEventButton*);
bool _hidden;
bool _has_state;
bool in_destructor;
NamePackingBits name_packing;
static void compute_controls_size_info ();
static bool need_size_info;
void set_heights (uint32_t h);
void color_handler ();
std::list<ArdourCanvas::SimpleLine*> feature_lines;
ARDOUR::AnalysisFeatureList analysis_features;
void reshow_feature_lines ();
void conditionally_add_to_selection ();
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;
int32_t _resize_idle_target;
ArdourCanvas::Group* _ghost_group;
static int const _max_order;
}; /* class TimeAxisView */
#endif /* __ardour_gtk_time_axis_h__ */