From 3bbe54f07aab182d0a9febd45be3c506a24fb415 Mon Sep 17 00:00:00 2001
From: Paul Davis <paul@linuxaudiosystems.com>
Date: Fri, 10 Dec 2021 08:54:38 -0700
Subject: [PATCH] audio clip editor: draw entire source file(s), not just
 region

---
 gtk2_ardour/audio_clip_editor.cc | 39 +++++++++++++++++++++++++++-----
 gtk2_ardour/audio_clip_editor.h  |  6 +++--
 2 files changed, 37 insertions(+), 8 deletions(-)

diff --git a/gtk2_ardour/audio_clip_editor.cc b/gtk2_ardour/audio_clip_editor.cc
index 36f771be4b..012fc71fe4 100644
--- a/gtk2_ardour/audio_clip_editor.cc
+++ b/gtk2_ardour/audio_clip_editor.cc
@@ -33,7 +33,9 @@
 #include "ardour/audioregion.h"
 #include "ardour/location.h"
 #include "ardour/profile.h"
+#include "ardour/region_factory.h"
 #include "ardour/session.h"
+#include "ardour/source.h"
 
 #include "widgets/ardour_button.h"
 
@@ -57,6 +59,7 @@ using std::max;
 /* ------------ */
 
 AudioClipEditor::AudioClipEditor ()
+	: spp (0)
 {
 	set_background_color (UIConfiguration::instance().color (X_("theme:bg")));
 
@@ -90,15 +93,31 @@ AudioClipEditor::set_region (boost::shared_ptr<AudioRegion> r)
 	drop_waves ();
 
 	uint32_t n_chans = r->n_channels ();
+	samplecnt_t len;
+
+	len = r->source (0)->length().samples ();
 
 	for (uint32_t n = 0; n < n_chans; ++n) {
-		WaveView* wv = new WaveView (frame, r);
+
+		boost::shared_ptr<Region> wr = RegionFactory::get_whole_region_for_source (r->source (n));
+		if (!wr) {
+			continue;
+		}
+
+		boost::shared_ptr<AudioRegion> war = boost::dynamic_pointer_cast<AudioRegion> (wr);
+		if (!war) {
+			continue;
+		}
+
+		WaveView* wv = new WaveView (frame, war);
 		wv->set_channel (n);
+		wv->set_show_zero_line (false);
+		wv->set_clip_level (1.0);
+
 		waves.push_back (wv);
 	}
 
-	std::cerr << "Now have " << waves.size() << " waves" << std::endl;
-
+	set_wave_spp (len);
 	set_wave_heights (frame->get().height() - 2.0);
 	set_waveform_colors ();
 }
@@ -114,6 +133,17 @@ AudioClipEditor::on_size_allocate (Gtk::Allocation& alloc)
 	set_wave_heights (r.height() - 2.0);
 }
 
+void
+AudioClipEditor::set_wave_spp (samplecnt_t len)
+{
+	double available_width = frame->get().width();
+	spp = floor (len / available_width);
+
+	for (auto & wave : waves) {
+		wave->set_samples_per_pixel (spp);
+	}
+}
+
 void
 AudioClipEditor::set_wave_heights (int h)
 {
@@ -129,9 +159,6 @@ AudioClipEditor::set_wave_heights (int h)
 	for (auto & wave : waves) {
 		wave->set_height (ht);
 		wave->set_y_position (n * ht);
-		wave->set_samples_per_pixel (256);
-		wave->set_show_zero_line (false);
-		wave->set_clip_level (1.0);
 		++n;
 	}
 }
diff --git a/gtk2_ardour/audio_clip_editor.h b/gtk2_ardour/audio_clip_editor.h
index cda85e44ec..74c24db3c0 100644
--- a/gtk2_ardour/audio_clip_editor.h
+++ b/gtk2_ardour/audio_clip_editor.h
@@ -27,6 +27,7 @@
 #include <gtkmm/table.h>
 
 #include "ardour/ardour.h"
+#include "ardour/types.h"
 #include "ardour/session_handle.h"
 
 #include "gtkmm2ext/cairo_packer.h"
@@ -71,12 +72,13 @@ class AudioClipEditor : public ArdourCanvas::GtkCanvas
 
   private:
 	ArdourCanvas::Rectangle* frame;
-	bool event_handler (GdkEvent* ev);
-
 	std::vector<ArdourWaveView::WaveView *> waves;
+	double spp;
 
+	bool event_handler (GdkEvent* ev);
 	void drop_waves ();
 	void set_wave_heights (int);
+	void set_wave_spp (ARDOUR::samplecnt_t);
 	void set_waveform_colors ();
 };