summaryrefslogtreecommitdiff
path: root/libs/canvas/canvas/wave_view.h
diff options
context:
space:
mode:
Diffstat (limited to 'libs/canvas/canvas/wave_view.h')
-rw-r--r--libs/canvas/canvas/wave_view.h271
1 files changed, 0 insertions, 271 deletions
diff --git a/libs/canvas/canvas/wave_view.h b/libs/canvas/canvas/wave_view.h
deleted file mode 100644
index 1767262151..0000000000
--- a/libs/canvas/canvas/wave_view.h
+++ /dev/null
@@ -1,271 +0,0 @@
-/*
- Copyright (C) 2011-2013 Paul Davis
- Copyright (C) 2017 Tim Mayberry
- Author: Carl Hetherington <cth@carlh.net>
-
- 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 __CANVAS_WAVE_VIEW_H__
-#define __CANVAS_WAVE_VIEW_H__
-
-#include <boost/shared_ptr.hpp>
-#include <boost/scoped_ptr.hpp>
-
-#include "ardour/types.h"
-
-#include <glibmm/refptr.h>
-
-#include "canvas/visibility.h"
-#include "canvas/item.h"
-
-namespace ARDOUR {
- class AudioRegion;
-}
-
-namespace Gdk {
- class Pixbuf;
-}
-
-class WaveViewTest;
-
-namespace ArdourCanvas {
-
-class WaveViewCacheGroup;
-class WaveViewDrawRequest;
-class WaveViewDrawRequestQueue;
-class WaveViewImage;
-class WaveViewProperties;
-class WaveViewDrawingThread;
-
-class LIBCANVAS_API WaveView : public Item, public sigc::trackable
-{
-public:
- enum Shape { Normal, Rectified };
-
- std::string debug_name () const;
-
- /* Displays a single channel of waveform data for the given Region.
-
- x = 0 in the waveview corresponds to the first waveform datum taken
- from region->start() samples into the source data.
-
- x = N in the waveview corresponds to the (N * spp)'th sample
- measured from region->start() into the source data.
-
- when drawing, we will map the zeroth-pixel of the waveview
- into a window.
-
- The waveview itself contains a set of pre-rendered Cairo::ImageSurfaces
- that cache sections of the display. This is filled on-demand and
- never cleared until something explicitly marks the cache invalid
- (such as a change in samples_per_pixel, the log scaling, rectified or
- other view parameters).
- */
-
- WaveView (Canvas*, boost::shared_ptr<ARDOUR::AudioRegion>);
- WaveView (Item*, boost::shared_ptr<ARDOUR::AudioRegion>);
- ~WaveView ();
-
- virtual void prepare_for_render (Rect const& window_area) const;
-
- virtual void render (Rect const & area, Cairo::RefPtr<Cairo::Context>) const;
-
- void compute_bounding_box () const;
-
- void set_samples_per_pixel (double);
- void set_height (Distance);
- void set_channel (int);
- void set_region_start (ARDOUR::frameoffset_t);
-
- /** Change the first position drawn by @param pixels.
- * @param pixels must be positive. This is used by
- * AudioRegionViews in Ardour to avoid drawing the
- * first pixel of a waveform, and exists in case
- * there are uses for WaveView where we do not
- * want this behaviour.
- */
- void set_start_shift (double pixels);
-
- void set_fill_color (Gtkmm2ext::Color);
- void set_outline_color (Gtkmm2ext::Color);
-
- void region_resized ();
- void gain_changed ();
-
- void set_show_zero_line (bool);
- bool show_zero_line () const;
-
- void set_zero_color (Gtkmm2ext::Color);
- void set_clip_color (Gtkmm2ext::Color);
- void set_logscaled (bool);
-
- void set_gradient_depth (double);
- double gradient_depth () const;
-
- void set_shape (Shape);
-
- void set_always_get_image_in_thread (bool yn);
-
- /* currently missing because we don't need them (yet):
- * set_shape_independent();
- * set_logscaled_independent();
- */
-
- static void set_global_gradient_depth (double);
- static void set_global_logscaled (bool);
- static void set_global_shape (Shape);
- static void set_global_show_waveform_clipping (bool);
-
- static double global_gradient_depth () { return _global_gradient_depth; }
-
- static bool global_logscaled () { return _global_logscaled; }
-
- static Shape global_shape () { return _global_shape; }
-
- void set_amplitude_above_axis (double v);
-
- double amplitude_above_axis () const;
-
- static void set_clip_level (double dB);
- static PBD::Signal0<void> ClipLevelChanged;
-
- static void start_drawing_thread ();
- static void stop_drawing_thread ();
-
- static void set_image_cache_size (uint64_t);
-
-#ifdef CANVAS_COMPATIBILITY
- void*& property_gain_src () {
- return _foo_void;
- }
- void*& property_gain_function () {
- return _foo_void;
- }
-
-private:
- void* _foo_void;
-#endif
-
-private:
- friend class ::WaveViewTest;
- friend class WaveViewThreadClient;
- friend class WaveViewDrawingThread;
-
- boost::shared_ptr<ARDOUR::AudioRegion> _region;
-
- boost::scoped_ptr<WaveViewProperties> _props;
-
- mutable boost::shared_ptr<WaveViewImage> _image;
-
- mutable boost::shared_ptr<WaveViewCacheGroup> _cache_group;
-
- bool _shape_independent;
- bool _logscaled_independent;
- bool _gradient_depth_independent;
-
- /** Under almost conditions, this is going to return _region->length(),
- * but if region_start has been reset, then we need to use this modified
- * computation.
- */
- ARDOUR::framecnt_t region_length () const;
-
- /** Under almost conditions, this is going to return _region->start() +
- * _region->length(), but if region_start has been reset, then we need to use
- * this modified computation.
- */
- ARDOUR::framepos_t region_end () const;
-
- /**
- * _image stays non-null after the first time it is set
- */
- bool rendered () const { return _image.get(); }
-
- bool draw_image_in_gui_thread () const;
-
- /** If true, calls to render() will render a missing wave image in the GUI
- * thread. Generally set to false, but true after a call to set_height().
- */
- mutable bool _draw_image_in_gui_thread;
-
- /** If true, calls to render() will render a missing wave image in the GUI
- * thread. Set true for waveviews we expect to keep updating (e.g. while
- * recording)
- */
- bool _always_draw_image_in_gui_thread;
-
- void init();
-
- mutable boost::shared_ptr<WaveViewDrawRequest> current_request;
-
- PBD::ScopedConnectionList invalidation_connection;
-
- static double _global_gradient_depth;
- static bool _global_logscaled;
- static Shape _global_shape;
- static bool _global_show_waveform_clipping;
- static double _global_clip_level;
-
- static PBD::Signal0<void> VisualPropertiesChanged;
-
- void handle_visual_property_change ();
- void handle_clip_level_change ();
-
- struct LineTips {
- double top;
- double bot;
- double spread;
- bool clip_max;
- bool clip_min;
-
- LineTips () : top (0.0), bot (0.0), clip_max (false), clip_min (false) {}
- };
-
- static ArdourCanvas::Coord y_extent (double, Shape const, double const height);
-
- static void compute_tips (ARDOUR::PeakData const& peak, LineTips& tips, double const effective_height);
-
- static void draw_image (Cairo::RefPtr<Cairo::ImageSurface>&, ARDOUR::PeakData*, int n_peaks,
- boost::shared_ptr<WaveViewDrawRequest>);
- static void draw_absent_image (Cairo::RefPtr<Cairo::ImageSurface>&, ARDOUR::PeakData*, int);
-
- ARDOUR::framecnt_t optimal_image_width_samples () const;
-
- void set_image (boost::shared_ptr<WaveViewImage> img) const;
-
- // @return true if item area intersects with draw area
- bool get_item_and_draw_rect_in_window_coords (Rect const& canvas_rect, Rect& item_area,
- Rect& draw_rect) const;
-
- boost::shared_ptr<WaveViewDrawRequest> create_draw_request (WaveViewProperties const&) const;
-
- void queue_draw_request (boost::shared_ptr<WaveViewDrawRequest> const&) const;
-
- static void process_draw_request (boost::shared_ptr<WaveViewDrawRequest>);
-
- boost::shared_ptr<WaveViewCacheGroup> get_cache_group () const;
-
- /**
- * Notify the Cache that we are dropping our reference to the
- * CacheGroup so it can also do so if it is the only reference holder
- * of the cache group.
- */
- void reset_cache_group ();
-};
-
-} // namespace ArdourCanvas
-
-#endif // __CANVAS_WAVE_VIEW_H__
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-07 06:33:53 +0000