diff options
Diffstat (limited to 'gtk2_ardour/audio_region_view.cc')
| -rw-r--r-- | gtk2_ardour/audio_region_view.cc | 1125 |
1 files changed, 1125 insertions, 0 deletions
diff --git a/gtk2_ardour/audio_region_view.cc b/gtk2_ardour/audio_region_view.cc new file mode 100644 index 0000000000..a9a758481f --- /dev/null +++ b/gtk2_ardour/audio_region_view.cc @@ -0,0 +1,1125 @@ +/* + 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. + + $Id$ +*/ + +#include <cmath> +#include <cassert> +#include <algorithm> + +#include <gtkmm.h> + +#include <gtkmm2ext/gtk_ui.h> + +#include <ardour/playlist.h> +#include <ardour/audioregion.h> +#include <ardour/audiosource.h> +#include <ardour/audio_diskstream.h> + +#include "streamview.h" +#include "audio_region_view.h" +#include "audio_time_axis.h" +#include "simplerect.h" +#include "simpleline.h" +#include "waveview.h" +#include "public_editor.h" +#include "audio_region_editor.h" +#include "region_gain_line.h" +#include "ghostregion.h" +#include "audio_time_axis.h" +#include "utils.h" +#include "rgb_macros.h" +#include "gui_thread.h" + +#include "i18n.h" + +using namespace sigc; +using namespace ARDOUR; +using namespace PBD; +using namespace Editing; +using namespace ArdourCanvas; + +static const int32_t sync_mark_width = 9; + +AudioRegionView::AudioRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv, AudioRegion& r, double spu, + Gdk::Color& basic_color) + : RegionView (parent, tv, r, spu, basic_color) + , sync_mark(0) + , zero_line(0) + , fade_in_shape(0) + , fade_out_shape(0) + , fade_in_handle(0) + , fade_out_handle(0) + , gain_line(0) + , _amplitude_above_axis(1.0) + , _flags(0) + , fade_color(0) +{ +} + +AudioRegionView::AudioRegionView (ArdourCanvas::Group *parent, RouteTimeAxisView &tv, AudioRegion& r, double spu, + Gdk::Color& basic_color, TimeAxisViewItem::Visibility visibility) + : RegionView (parent, tv, r, spu, basic_color, visibility) + , sync_mark(0) + , zero_line(0) + , fade_in_shape(0) + , fade_out_shape(0) + , fade_in_handle(0) + , fade_out_handle(0) + , gain_line(0) + , _amplitude_above_axis(1.0) + , _flags(0) + , fade_color(0) +{ +} + +void +AudioRegionView::init (Gdk::Color& basic_color, bool wfd) +{ + // FIXME: Some redundancy here with RegionView::init. Need to figure out + // where order is important and where it isn't... + + RegionView::init(basic_color, wfd); + + XMLNode *node; + + _amplitude_above_axis = 1.0; + zero_line = 0; + _flags = 0; + + if ((node = _region.extra_xml ("GUI")) != 0) { + set_flags (node); + } else { + _flags = WaveformVisible; + store_flags (); + } + + if (trackview.editor.new_regionviews_display_gain()) { + _flags |= EnvelopeVisible; + } + + compute_colors (basic_color); + + create_waves (); + + fade_in_shape = new ArdourCanvas::Polygon (*group); + fade_in_shape->property_fill_color_rgba() = fade_color; + fade_in_shape->set_data ("regionview", this); + + fade_out_shape = new ArdourCanvas::Polygon (*group); + fade_out_shape->property_fill_color_rgba() = fade_color; + fade_out_shape->set_data ("regionview", this); + + + { + uint32_t r,g,b,a; + UINT_TO_RGBA(fill_color,&r,&g,&b,&a); + + + fade_in_handle = new ArdourCanvas::SimpleRect (*group); + fade_in_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,0); + fade_in_handle->property_outline_pixels() = 0; + fade_in_handle->property_y1() = 2.0; + fade_in_handle->property_y2() = 7.0; + + fade_in_handle->set_data ("regionview", this); + + fade_out_handle = new ArdourCanvas::SimpleRect (*group); + fade_out_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,0); + fade_out_handle->property_outline_pixels() = 0; + fade_out_handle->property_y1() = 2.0; + fade_out_handle->property_y2() = 7.0; + + fade_out_handle->set_data ("regionview", this); + } + + string foo = _region.name(); + foo += ':'; + foo += "gain"; + + gain_line = new AudioRegionGainLine (foo, trackview.session(), *this, *group, audio_region().envelope()); + + if (!(_flags & EnvelopeVisible)) { + gain_line->hide (); + } else { + gain_line->show (); + } + + reset_width_dependent_items ((double) _region.length() / samples_per_unit); + + gain_line->reset (); + + set_height (trackview.height); + + region_muted (); + region_sync_changed (); + region_resized (BoundsChanged); + set_waveview_data_src(); + region_locked (); + envelope_active_changed (); + fade_in_active_changed (); + fade_out_active_changed (); + + _region.StateChanged.connect (mem_fun(*this, &AudioRegionView::region_changed)); + + fade_in_shape->signal_event().connect (bind (mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_in_event), fade_in_shape, this)); + fade_in_handle->signal_event().connect (bind (mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_in_handle_event), fade_in_handle, this)); + fade_out_shape->signal_event().connect (bind (mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_out_event), fade_out_shape, this)); + fade_out_handle->signal_event().connect (bind (mem_fun (PublicEditor::instance(), &PublicEditor::canvas_fade_out_handle_event), fade_out_handle, this)); + + set_colors (); + + /* XXX sync mark drag? */ +} + +AudioRegionView::~AudioRegionView () +{ + in_destructor = true; + + RegionViewGoingAway (this); /* EMIT_SIGNAL */ + + for (vector<GnomeCanvasWaveViewCache *>::iterator cache = wave_caches.begin(); cache != wave_caches.end() ; ++cache) { + gnome_canvas_waveview_cache_destroy (*cache); + } + + /* all waveviews etc will be destroyed when the group is destroyed */ + + if (gain_line) { + delete gain_line; + } +} + +ARDOUR::AudioRegion& +AudioRegionView::audio_region() const +{ + // "Guaranteed" to succeed... + return dynamic_cast<AudioRegion&>(_region); +} + +void +AudioRegionView::region_changed (Change what_changed) +{ + ENSURE_GUI_THREAD (bind (mem_fun(*this, &AudioRegionView::region_changed), what_changed)); + + RegionView::region_changed(what_changed); + + if (what_changed & AudioRegion::ScaleAmplitudeChanged) { + region_scale_amplitude_changed (); + } + if (what_changed & AudioRegion::FadeInChanged) { + fade_in_changed (); + } + if (what_changed & AudioRegion::FadeOutChanged) { + fade_out_changed (); + } + if (what_changed & AudioRegion::FadeInActiveChanged) { + fade_in_active_changed (); + } + if (what_changed & AudioRegion::FadeOutActiveChanged) { + fade_out_active_changed (); + } + if (what_changed & AudioRegion::EnvelopeActiveChanged) { + envelope_active_changed (); + } +} + +void +AudioRegionView::fade_in_changed () +{ + reset_fade_in_shape (); +} + +void +AudioRegionView::fade_out_changed () +{ + reset_fade_out_shape (); +} + +void +AudioRegionView::set_fade_in_active (bool yn) +{ + audio_region().set_fade_in_active (yn); +} + +void +AudioRegionView::set_fade_out_active (bool yn) +{ + audio_region().set_fade_out_active (yn); +} + +void +AudioRegionView::fade_in_active_changed () +{ + uint32_t r,g,b,a; + uint32_t col; + UINT_TO_RGBA(fade_color,&r,&g,&b,&a); + + if (audio_region().fade_in_active()) { + col = RGBA_TO_UINT(r,g,b,120); + fade_in_shape->property_fill_color_rgba() = col; + fade_in_shape->property_width_pixels() = 0; + fade_in_shape->property_outline_color_rgba() = RGBA_TO_UINT(r,g,b,0); + } else { + col = RGBA_TO_UINT(r,g,b,0); + fade_in_shape->property_fill_color_rgba() = col; + fade_in_shape->property_width_pixels() = 1; + fade_in_shape->property_outline_color_rgba() = RGBA_TO_UINT(r,g,b,255); + } +} + +void +AudioRegionView::fade_out_active_changed () +{ + uint32_t r,g,b,a; + uint32_t col; + UINT_TO_RGBA(fade_color,&r,&g,&b,&a); + + if (audio_region().fade_out_active()) { + col = RGBA_TO_UINT(r,g,b,120); + fade_out_shape->property_fill_color_rgba() = col; + fade_out_shape->property_width_pixels() = 0; + fade_out_shape->property_outline_color_rgba() = RGBA_TO_UINT(r,g,b,0); + } else { + col = RGBA_TO_UINT(r,g,b,0); + fade_out_shape->property_fill_color_rgba() = col; + fade_out_shape->property_width_pixels() = 1; + fade_out_shape->property_outline_color_rgba() = RGBA_TO_UINT(r,g,b,255); + } +} + + +void +AudioRegionView::region_scale_amplitude_changed () +{ + ENSURE_GUI_THREAD (mem_fun(*this, &AudioRegionView::region_scale_amplitude_changed)); + + for (uint32_t n = 0; n < waves.size(); ++n) { + // force a reload of the cache + waves[n]->property_data_src() = &_region; + } +} + +void +AudioRegionView::region_resized (Change what_changed) +{ + RegionView::region_resized(what_changed); + + if (what_changed & Change (StartChanged|LengthChanged)) { + + for (uint32_t n = 0; n < waves.size(); ++n) { + waves[n]->property_region_start() = _region.start(); + } + + for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) { + + for (vector<WaveView*>::iterator w = (*i)->waves.begin(); w != (*i)->waves.end(); ++w) { + (*w)->property_region_start() = _region.start(); + } + } + } +} + +void +AudioRegionView::reset_width_dependent_items (double pixel_width) +{ + RegionView::reset_width_dependent_items(pixel_width); + assert(_pixel_width == pixel_width); + + if (zero_line) { + zero_line->property_x2() = pixel_width - 1.0; + } + + if (fade_in_handle) { + if (pixel_width <= 6.0) { + fade_in_handle->hide(); + fade_out_handle->hide(); + } else { + if (_height < 5.0) { + fade_in_handle->hide(); + fade_out_handle->hide(); + } else { + fade_in_handle->show(); + fade_out_handle->show(); + } + } + } + + reset_fade_shapes (); +} + +void +AudioRegionView::region_muted () +{ + RegionView::region_muted(); + + for (uint32_t n=0; n < waves.size(); ++n) { + if (_region.muted()) { + waves[n]->property_wave_color() = color_map[cMutedWaveForm]; + } else { + waves[n]->property_wave_color() = color_map[cWaveForm]; + } + } +} + + +void +AudioRegionView::set_height (gdouble height) +{ + uint32_t wcnt = waves.size(); + + // FIXME: ick + TimeAxisViewItem::set_height (height - 2); + + _height = height; + + for (uint32_t n=0; n < wcnt; ++n) { + gdouble ht; + + if ((height) <= NAME_HIGHLIGHT_THRESH) { + ht = ((height-2*wcnt) / (double) wcnt); + } else { + ht = (((height-2*wcnt) - NAME_HIGHLIGHT_SIZE) / (double) wcnt); + } + + gdouble yoff = n * (ht+1); + + waves[n]->property_height() = ht; + waves[n]->property_y() = yoff + 2; + } + + if (gain_line) { + if ((height/wcnt) < NAME_HIGHLIGHT_SIZE) { + gain_line->hide (); + } else { + if (_flags & EnvelopeVisible) { + gain_line->show (); + } + } + gain_line->set_height ((uint32_t) rint (height - NAME_HIGHLIGHT_SIZE)); + } + + manage_zero_line (); + reset_fade_shapes (); + + if (name_text) { + name_text->raise_to_top(); + } +} + +void +AudioRegionView::manage_zero_line () +{ + if (!zero_line) { + return; + } + + if (_height >= 100) { + gdouble wave_midpoint = (_height - NAME_HIGHLIGHT_SIZE) / 2.0; + zero_line->property_y1() = wave_midpoint; + zero_line->property_y2() = wave_midpoint; + zero_line->show(); + } else { + zero_line->hide(); + } +} + +void +AudioRegionView::reset_fade_shapes () +{ + reset_fade_in_shape (); + reset_fade_out_shape (); +} + +void +AudioRegionView::reset_fade_in_shape () +{ + reset_fade_in_shape_width ((jack_nframes_t) audio_region().fade_in().back()->when); +} + +void +AudioRegionView::reset_fade_in_shape_width (jack_nframes_t width) +{ + if (fade_in_handle == 0) { + return; + } + + /* smallest size for a fade is 64 frames */ + + width = std::max ((jack_nframes_t) 64, width); + + Points* points; + double pwidth = width / samples_per_unit; + uint32_t npoints = std::min (gdk_screen_width(), (int) pwidth); + double h; + + if (_height < 5) { + fade_in_shape->hide(); + fade_in_handle->hide(); + return; + } + + double handle_center; + handle_center = pwidth; + + if (handle_center > 7.0) { + handle_center -= 3.0; + } else { + handle_center = 3.0; + } + + fade_in_handle->property_x1() = handle_center - 3.0; + fade_in_handle->property_x2() = handle_center + 3.0; + + if (pwidth < 5) { + fade_in_shape->hide(); + return; + } + + fade_in_shape->show(); + + float curve[npoints]; + audio_region().fade_in().get_vector (0, audio_region().fade_in().back()->when, curve, npoints); + + points = get_canvas_points ("fade in shape", npoints+3); + + if (_height > NAME_HIGHLIGHT_THRESH) { + h = _height - NAME_HIGHLIGHT_SIZE; + } else { + h = _height; + } + + /* points *MUST* be in anti-clockwise order */ + + uint32_t pi, pc; + double xdelta = pwidth/npoints; + + for (pi = 0, pc = 0; pc < npoints; ++pc) { + (*points)[pi].set_x(1 + (pc * xdelta)); + (*points)[pi++].set_y(2 + (h - (curve[pc] * h))); + } + + /* fold back */ + + (*points)[pi].set_x(pwidth); + (*points)[pi++].set_y(2); + + (*points)[pi].set_x(1); + (*points)[pi++].set_y(2); + + /* connect the dots ... */ + + (*points)[pi] = (*points)[0]; + + fade_in_shape->property_points() = *points; + delete points; +} + +void +AudioRegionView::reset_fade_out_shape () +{ + reset_fade_out_shape_width ((jack_nframes_t) audio_region().fade_out().back()->when); +} + +void +AudioRegionView::reset_fade_out_shape_width (jack_nframes_t width) +{ + if (fade_out_handle == 0) { + return; + } + + /* smallest size for a fade is 64 frames */ + + width = std::max ((jack_nframes_t) 64, width); + + Points* points; + double pwidth = width / samples_per_unit; + uint32_t npoints = std::min (gdk_screen_width(), (int) pwidth); + double h; + + if (_height < 5) { + fade_out_shape->hide(); + fade_out_handle->hide(); + return; + } + + double handle_center; + handle_center = (_region.length() - width) / samples_per_unit; + + if (handle_center > 7.0) { + handle_center -= 3.0; + } else { + handle_center = 3.0; + } + + fade_out_handle->property_x1() = handle_center - 3.0; + fade_out_handle->property_x2() = handle_center + 3.0; + + /* don't show shape if its too small */ + + if (pwidth < 5) { + fade_out_shape->hide(); + return; + } + + fade_out_shape->show(); + + float curve[npoints]; + audio_region().fade_out().get_vector (0, audio_region().fade_out().back()->when, curve, npoints); + + if (_height > NAME_HIGHLIGHT_THRESH) { + h = _height - NAME_HIGHLIGHT_SIZE; + } else { + h = _height; + } + + /* points *MUST* be in anti-clockwise order */ + + points = get_canvas_points ("fade out shape", npoints+3); + + uint32_t pi, pc; + double xdelta = pwidth/npoints; + + for (pi = 0, pc = 0; pc < npoints; ++pc) { + (*points)[pi].set_x(_pixel_width - 1 - pwidth + (pc*xdelta)); + (*points)[pi++].set_y(2 + (h - (curve[pc] * h))); + } + + /* fold back */ + + (*points)[pi].set_x(_pixel_width); + (*points)[pi++].set_y(h); + + (*points)[pi].set_x(_pixel_width); + (*points)[pi++].set_y(2); + + /* connect the dots ... */ + + (*points)[pi] = (*points)[0]; + + fade_out_shape->property_points() = *points; + delete points; +} + +void +AudioRegionView::set_samples_per_unit (gdouble spu) +{ + RegionView::set_samples_per_unit (spu); + + for (uint32_t n=0; n < waves.size(); ++n) { + waves[n]->property_samples_per_unit() = spu; + } + + if (gain_line) { + gain_line->reset (); + } + reset_fade_shapes (); +} + +void +AudioRegionView::set_amplitude_above_axis (gdouble spp) +{ + for (uint32_t n=0; n < waves.size(); ++n) { + waves[n]->property_amplitude_above_axis() = spp; + } +} + +void +AudioRegionView::compute_colors (Gdk::Color& basic_color) +{ + RegionView::compute_colors(basic_color); + + uint32_t r, g, b, a; + + /* gain color computed in envelope_active_changed() */ + + UINT_TO_RGBA (fill_color, &r, &g, &b, &a); + fade_color = RGBA_TO_UINT(r,g,b,120); +} + +void +AudioRegionView::set_colors () +{ + RegionView::set_colors(); + + if (gain_line) { + gain_line->set_line_color (audio_region().envelope_active() ? color_map[cGainLine] : color_map[cGainLineInactive]); + } + + for (uint32_t n=0; n < waves.size(); ++n) { + if (_region.muted()) { + waves[n]->property_wave_color() = color_map[cMutedWaveForm]; + } else { + waves[n]->property_wave_color() = color_map[cWaveForm]; + } + } +} + +void +AudioRegionView::show_region_editor () +{ + if (editor == 0) { + editor = new AudioRegionEditor (trackview.session(), audio_region(), *this); + // GTK2FIX : how to ensure float without realizing + // editor->realize (); + // trackview.editor.ensure_float (*editor); + } + + editor->show_all (); + editor->get_window()->raise(); +} + +void +AudioRegionView::set_waveform_visible (bool yn) +{ + if (((_flags & WaveformVisible) != yn)) { + if (yn) { + for (uint32_t n=0; n < waves.size(); ++n) { + waves[n]->show(); + } + _flags |= WaveformVisible; + } else { + for (uint32_t n=0; n < waves.size(); ++n) { + waves[n]->hide(); + } + _flags &= ~WaveformVisible; + } + store_flags (); + } +} + +void +AudioRegionView::temporarily_hide_envelope () +{ + if (gain_line) { + gain_line->hide (); + } +} + +void +AudioRegionView::unhide_envelope () +{ + if (gain_line && (_flags & EnvelopeVisible)) { + gain_line->show (); + } +} + +void +AudioRegionView::set_envelope_visible (bool yn) +{ + if (gain_line && ((_flags & EnvelopeVisible) != yn)) { + if (yn) { + gain_line->show (); + _flags |= EnvelopeVisible; + } else { + gain_line->hide (); + _flags &= ~EnvelopeVisible; + } + store_flags (); + } +} + +void +AudioRegionView::create_waves () +{ + bool create_zero_line = true; + + RouteTimeAxisView& atv (*(dynamic_cast<RouteTimeAxisView*>(&trackview))); // ick + + if (!atv.get_diskstream()) { + return; + } + + uint32_t nchans = atv.get_diskstream()->n_channels(); + + /* in tmp_waves, set up null pointers for each channel so the vector is allocated */ + for (uint32_t n = 0; n < nchans; ++n) { + tmp_waves.push_back (0); + } + + for (uint32_t n = 0; n < nchans; ++n) { + + if (n >= audio_region().n_channels()) { + break; + } + + wave_caches.push_back (WaveView::create_cache ()); + + if (wait_for_data) { + if (audio_region().source(n).peaks_ready (bind (mem_fun(*this, &AudioRegionView::peaks_ready_handler), n), data_ready_connection)) { + create_one_wave (n, true); + } else { + create_zero_line = false; + } + } else { + create_one_wave (n, true); + } + } + + if (create_zero_line) { + zero_line = new ArdourCanvas::SimpleLine (*group); + zero_line->property_x1() = (gdouble) 1.0; + zero_line->property_x2() = (gdouble) (_region.length() / samples_per_unit) - 1.0; + zero_line->property_color_rgba() = (guint) color_map[cZeroLine]; + manage_zero_line (); + } +} + +void +AudioRegionView::create_one_wave (uint32_t which, bool direct) +{ + RouteTimeAxisView& atv (*(dynamic_cast<RouteTimeAxisView*>(&trackview))); // ick + uint32_t nchans = atv.get_diskstream()->n_channels(); + uint32_t n; + uint32_t nwaves = std::min (nchans, audio_region().n_channels()); + gdouble ht; + + if (trackview.height < NAME_HIGHLIGHT_SIZE) { + ht = ((trackview.height) / (double) nchans); + } else { + ht = ((trackview.height - NAME_HIGHLIGHT_SIZE) / (double) nchans); + } + + gdouble yoff = which * ht; + + WaveView *wave = new WaveView(*group); + + wave->property_data_src() = (gpointer) &_region; + wave->property_cache() = wave_caches[which]; + wave->property_cache_updater() = true; + wave->property_channel() = which; + wave->property_length_function() = (gpointer) region_length_from_c; + wave->property_sourcefile_length_function() = (gpointer) sourcefile_length_from_c; + wave->property_peak_function() = (gpointer) region_read_peaks_from_c; + wave->property_x() = 0.0; + wave->property_y() = yoff; + wave->property_height() = (double) ht; + wave->property_samples_per_unit() = samples_per_unit; + wave->property_amplitude_above_axis() = _amplitude_above_axis; + wave->property_wave_color() = _region.muted() ? color_map[cMutedWaveForm] : color_map[cWaveForm]; + wave->property_region_start() = _region.start(); + + if (!(_flags & WaveformVisible)) { + wave->hide(); + } + + /* note: calling this function is serialized by the lock + held in the peak building thread that signals that + peaks are ready for use *or* by the fact that it is + called one by one from the GUI thread. + */ + + if (which < nchans) { + tmp_waves[which] = wave; + } else { + /* n-channel track, >n-channel source */ + } + + /* see if we're all ready */ + + for (n = 0; n < nchans; ++n) { + if (tmp_waves[n] == 0) { + break; + } + } + + if (n == nwaves && waves.empty()) { + /* all waves are ready */ + tmp_waves.resize(nwaves); + + waves = tmp_waves; + tmp_waves.clear (); + + if (!zero_line) { + zero_line = new ArdourCanvas::SimpleLine (*group); + zero_line->property_x1() = (gdouble) 1.0; + zero_line->property_x2() = (gdouble) (_region.length() / samples_per_unit) - 1.0; + zero_line->property_color_rgba() = (guint) color_map[cZeroLine]; + manage_zero_line (); + } + } +} + +void +AudioRegionView::peaks_ready_handler (uint32_t which) +{ + Gtkmm2ext::UI::instance()->call_slot (bind (mem_fun(*this, &AudioRegionView::create_one_wave), which, false)); + + if (!waves.empty()) { + /* all waves created, don't hook into peaks ready anymore */ + data_ready_connection.disconnect (); + } +} + +void +AudioRegionView::add_gain_point_event (ArdourCanvas::Item *item, GdkEvent *ev) +{ + if (gain_line == 0) { + return; + } + + double x, y; + + /* don't create points that can't be seen */ + + set_envelope_visible (true); + + x = ev->button.x; + y = ev->button.y; + + item->w2i (x, y); + + jack_nframes_t fx = trackview.editor.pixel_to_frame (x); + + if (fx > _region.length()) { + return; + } + + /* compute vertical fractional position */ + + y = 1.0 - (y / (trackview.height - NAME_HIGHLIGHT_SIZE)); + + /* map using gain line */ + + gain_line->view_to_model_y (y); + + trackview.session().begin_reversible_command (_("add gain control point")); + trackview.session().add_undo (audio_region().envelope().get_memento()); + + + if (!audio_region().envelope_active()) { + trackview.session().add_undo( bind( mem_fun(audio_region(), &AudioRegion::set_envelope_active), false) ); + audio_region().set_envelope_active(true); + trackview.session().add_redo( bind( mem_fun(audio_region(), &AudioRegion::set_envelope_active), true) ); + } + + audio_region().envelope().add (fx, y); + + trackview.session().add_redo_no_execute (audio_region().envelope().get_memento()); + trackview.session().commit_reversible_command (); +} + +void +AudioRegionView::remove_gain_point_event (ArdourCanvas::Item *item, GdkEvent *ev) +{ + ControlPoint *cp = reinterpret_cast<ControlPoint *> (item->get_data ("control_point")); + audio_region().envelope().erase (cp->model); +} + +void +AudioRegionView::store_flags() +{ + XMLNode *node = new XMLNode ("GUI"); + + node->add_property ("waveform-visible", (_flags & WaveformVisible) ? "yes" : "no"); + node->add_property ("envelope-visible", (_flags & EnvelopeVisible) ? "yes" : "no"); + + _region.add_extra_xml (*node); +} + +void +AudioRegionView::set_flags (XMLNode* node) +{ + XMLProperty *prop; + + if ((prop = node->property ("waveform-visible")) != 0) { + if (prop->value() == "yes") { + _flags |= WaveformVisible; + } + } + + if ((prop = node->property ("envelope-visible")) != 0) { + if (prop->value() == "yes") { + _flags |= EnvelopeVisible; + } + } +} + +void +AudioRegionView::set_waveform_shape (WaveformShape shape) +{ + bool yn; + + /* this slightly odd approach is to leave the door open to + other "shapes" such as spectral displays, etc. + */ + + switch (shape) { + case Rectified: + yn = true; + break; + + default: + yn = false; + break; + } + + if (yn != (bool) (_flags & WaveformRectified)) { + for (vector<WaveView *>::iterator wave = waves.begin(); wave != waves.end() ; ++wave) { + (*wave)->property_rectified() = yn; + } + + if (zero_line) { + if (yn) { + zero_line->hide(); + } else { + zero_line->show(); + } + } + + if (yn) { + _flags |= WaveformRectified; + } else { + _flags &= ~WaveformRectified; + } + } +} + +GhostRegion* +AudioRegionView::add_ghost (AutomationTimeAxisView& atv) +{ + RouteTimeAxisView& myatv (*(dynamic_cast<RouteTimeAxisView*>(&trackview))); // ick + double unit_position = _region.position () / samples_per_unit; + GhostRegion* ghost = new GhostRegion (atv, unit_position); + uint32_t nchans; + + nchans = myatv.get_diskstream()->n_channels(); + + for (uint32_t n = 0; n < nchans; ++n) { + + if (n >= audio_region().n_channels()) { + break; + } + + WaveView *wave = new WaveView(*ghost->group); + + wave->property_data_src() = &_region; + wave->property_cache() = wave_caches[n]; + wave->property_cache_updater() = false; + wave->property_channel() = n; + wave->property_length_function() = (gpointer)region_length_from_c; + wave->property_sourcefile_length_function() = (gpointer) sourcefile_length_from_c; + wave->property_peak_function() = (gpointer) region_read_peaks_from_c; + wave->property_x() = 0.0; + wave->property_samples_per_unit() = samples_per_unit; + wave->property_amplitude_above_axis() = _amplitude_above_axis; + wave->property_wave_color() = color_map[cGhostTrackWave]; + wave->property_region_start() = _region.start(); + + ghost->waves.push_back(wave); + } + + ghost->set_height (); + ghost->set_duration (_region.length() / samples_per_unit); + ghosts.push_back (ghost); + + ghost->GoingAway.connect (mem_fun(*this, &AudioRegionView::remove_ghost)); + + return ghost; +} + +void +AudioRegionView::entered () +{ + if (gain_line && _flags & EnvelopeVisible) { + gain_line->show_all_control_points (); + } + + uint32_t r,g,b,a; + UINT_TO_RGBA(fade_color,&r,&g,&b,&a); + a=255; + + if (fade_in_handle) { + fade_in_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,a); + fade_out_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,a); + } +} + +void +AudioRegionView::exited () +{ + if (gain_line) { + gain_line->hide_all_but_selected_control_points (); + } + + uint32_t r,g,b,a; + UINT_TO_RGBA(fade_color,&r,&g,&b,&a); + a=0; + + if (fade_in_handle) { + fade_in_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,a); + fade_out_handle->property_fill_color_rgba() = RGBA_TO_UINT(r,g,b,a); + } +} + +void +AudioRegionView::envelope_active_changed () +{ + if (gain_line) { + gain_line->set_line_color (audio_region().envelope_active() ? color_map[cGainLine] : color_map[cGainLineInactive]); + } +} + +void +AudioRegionView::set_waveview_data_src() +{ + + double unit_length= _region.length() / samples_per_unit; + + for (uint32_t n = 0; n < waves.size(); ++n) { + // TODO: something else to let it know the channel + waves[n]->property_data_src() = &_region; + } + + for (vector<GhostRegion*>::iterator i = ghosts.begin(); i != ghosts.end(); ++i) { + + (*i)->set_duration (unit_length); + + for (vector<WaveView*>::iterator w = (*i)->waves.begin(); w != (*i)->waves.end(); ++w) { + (*w)->property_data_src() = &_region; + } + } + +} + +void +AudioRegionView::color_handler (ColorID id, uint32_t val) +{ + switch (id) { + case cMutedWaveForm: + case cWaveForm: + set_colors (); + break; + + case cGainLineInactive: + case cGainLine: + envelope_active_changed(); + break; + + case cZeroLine: + if (zero_line) { + zero_line->property_color_rgba() = (guint) color_map[cZeroLine]; + } + break; + + case cGhostTrackWave: + break; + + default: + break; + } +} |