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/*
Copyright (C) 2001-2006 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 __gtk_ardour_audio_region_view_h__
#define __gtk_ardour_audio_region_view_h__
#include <vector>
#include <libgnomecanvasmm.h>
#include <libgnomecanvasmm/polygon.h>
#include <sigc++/signal.h>
#include "ardour/audioregion.h"
#include "region_view.h"
#include "time_axis_view_item.h"
#include "automation_line.h"
#include "enums.h"
#include "waveview.h"
#include "canvas.h"
namespace ARDOUR {
class AudioRegion;
struct PeakData;
};
class AudioTimeAxisView;
class AudioRegionGainLine;
class GhostRegion;
class AutomationTimeAxisView;
class RouteTimeAxisView;
class AudioRegionView : public RegionView
{
public:
AudioRegionView (ArdourCanvas::Group *,
RouteTimeAxisView&,
boost::shared_ptr<ARDOUR::AudioRegion>,
double initial_samples_per_unit,
Gdk::Color const & basic_color);
AudioRegionView (ArdourCanvas::Group *,
RouteTimeAxisView&,
boost::shared_ptr<ARDOUR::AudioRegion>,
double samples_per_unit,
Gdk::Color const & basic_color,
bool recording,
TimeAxisViewItem::Visibility);
AudioRegionView (const AudioRegionView& other, boost::shared_ptr<ARDOUR::AudioRegion>);
~AudioRegionView ();
virtual void init (Gdk::Color const & base_color, bool wait_for_data);
boost::shared_ptr<ARDOUR::AudioRegion> audio_region() const;
void create_waves ();
void set_height (double);
void set_samples_per_unit (double);
void set_amplitude_above_axis (gdouble spp);
void temporarily_hide_envelope (); ///< Dangerous!
void unhide_envelope (); ///< Dangerous!
void update_envelope_visibility ();
void add_gain_point_event (ArdourCanvas::Item *item, GdkEvent *event);
void remove_gain_point_event (ArdourCanvas::Item *item, GdkEvent *event);
boost::shared_ptr<AudioRegionGainLine> get_gain_line() const { return gain_line; }
void region_changed (const PBD::PropertyChange&);
void envelope_active_changed ();
GhostRegion* add_ghost (TimeAxisView&);
void reset_fade_in_shape_width (boost::shared_ptr<ARDOUR::AudioRegion> ar, framecnt_t);
void reset_fade_out_shape_width (boost::shared_ptr<ARDOUR::AudioRegion> ar, framecnt_t);
framepos_t get_fade_in_shape_width ();
framepos_t get_fade_out_shape_width ();
void set_fade_visibility (bool);
void update_coverage_frames (LayerDisplay);
void update_transient(float old_pos, float new_pos);
void remove_transient(float pos);
void show_region_editor ();
virtual void entered (bool);
virtual void exited ();
void thaw_after_trim ();
void drag_start ();
void drag_end ();
void redraw_start_xfade_to (boost::shared_ptr<ARDOUR::AudioRegion>, framecnt_t);
void redraw_end_xfade_to (boost::shared_ptr<ARDOUR::AudioRegion>, framecnt_t);
void redraw_start_xfade ();
void redraw_end_xfade ();
void hide_xfades ();
void hide_start_xfade ();
void hide_end_xfade ();
void show_xfades ();
void show_start_xfade ();
void show_end_xfade ();
bool start_xfade_visible () const {
return _start_xfade_visible;
}
bool end_xfade_visible () const {
return _end_xfade_visible;
}
protected:
/* this constructor allows derived types
to specify their visibility requirements
to the TimeAxisViewItem parent class
*/
enum Flags {
WaveformVisible = 0x4,
WaveformRectified = 0x8,
WaveformLogScaled = 0x10,
};
std::vector<ArdourCanvas::WaveView *> waves;
std::vector<ArdourCanvas::WaveView *> tmp_waves; ///< see ::create_waves()
std::list<std::pair<framepos_t, ArdourCanvas::Line*> > feature_lines;
ArdourCanvas::Polygon* sync_mark; ///< polgyon for sync position
ArdourCanvas::Polygon* fade_in_shape;
ArdourCanvas::Polygon* fade_out_shape;
ArdourCanvas::SimpleRect* fade_in_handle; ///< fade in handle, or 0
ArdourCanvas::SimpleRect* fade_out_handle; ///< fade out handle, or 0
ArdourCanvas::Line *start_xfade_in;
ArdourCanvas::Line *start_xfade_out;
ArdourCanvas::SimpleRect* start_xfade_rect;
bool _start_xfade_visible;
ArdourCanvas::Line *end_xfade_in;
ArdourCanvas::Line *end_xfade_out;
ArdourCanvas::SimpleRect* end_xfade_rect;
bool _end_xfade_visible;
boost::shared_ptr<AudioRegionGainLine> gain_line;
double _amplitude_above_axis;
uint32_t fade_color;
void reset_fade_shapes ();
void reset_fade_in_shape ();
void reset_fade_out_shape ();
void fade_in_changed ();
void fade_out_changed ();
void fade_in_active_changed ();
void fade_out_active_changed ();
void region_resized (const PBD::PropertyChange&);
void region_muted ();
void region_scale_amplitude_changed ();
void region_renamed ();
void create_one_wave (uint32_t, bool);
void peaks_ready_handler (uint32_t);
void set_colors ();
void compute_colors (Gdk::Color const &);
void reset_width_dependent_items (double pixel_width);
void set_waveview_data_src();
void set_frame_color ();
void color_handler ();
std::vector<GnomeCanvasWaveViewCache*> wave_caches;
void transients_changed();
AutomationLine::VisibleAspects automation_line_visibility () const;
private:
void setup_fade_handle_positions ();
void parameter_changed (std::string const &);
void setup_waveform_visibility ();
void setup_waveform_shape ();
void setup_waveform_scale ();
/** A ScopedConnection for each PeaksReady callback (one per channel). Each member
* may be 0 if no connection exists.
*/
std::vector<PBD::ScopedConnection*> _data_ready_connections;
/** RegionViews that we hid the xfades for at the start of the current drag;
* first list is for start xfades, second list is for end xfades.
*/
std::pair<std::list<AudioRegionView*>, std::list<AudioRegionView*> > _hidden_xfades;
};
#endif /* __gtk_ardour_audio_region_view_h__ */
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