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audio clip editor: basic line drawing

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This commit is contained in:
Paul Davis 2021-12-10 09:47:56 -07:00
parent 3bbe54f07a
commit 56835d342c
2 changed files with 46 additions and 5 deletions
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42
gtk2_ardour/audio_clip_editor.cc
View file

@ -61,15 +61,29 @@ using std::max;
AudioClipEditor::AudioClipEditor ()
: spp (0)
{
set_background_color (UIConfiguration::instance().color (X_("theme:bg")));
const double scale = UIConfiguration::instance().get_ui_scale();
frame = new Rectangle (root());
frame->name = "audio clip editor frame";
frame->set_fill (false);
frame->set_outline_color (UIConfiguration::instance().color (X_("theme:darkest")));
frame->Event.connect (sigc::mem_fun (*this, &AudioClipEditor::event_handler));
waves_container = new ArdourCanvas::Container (frame);
line_container = new ArdourCanvas::Container (frame);
start_line = new Line (line_container);
start_line->set (Duple (10, 0), Duple (10, 1));
start_line->set_outline_width (2. * scale);
end_line = new Line (line_container);
end_line->set (Duple (30, 0), Duple (30, 1));
end_line->set_outline_width (2. * scale);
loop_line = new Line (line_container);
loop_line->set (Duple (50, 0), Duple (50, 1));
loop_line->set_outline_width (2. * scale);
line_container->hide ();
set_colors ();
}
AudioClipEditor::~AudioClipEditor ()
@ -77,6 +91,20 @@ AudioClipEditor::~AudioClipEditor ()
drop_waves ();
}
void
AudioClipEditor::set_colors ()
{
set_background_color (UIConfiguration::instance().color (X_("theme:bg")));
frame->set_outline_color (UIConfiguration::instance().color (X_("theme:darkest")));
start_line->set_outline_color (UIConfiguration::instance().color (X_("theme:contrasting clock")));
end_line->set_outline_color (UIConfiguration::instance().color (X_("theme:contrasting alt")));
loop_line->set_outline_color (UIConfiguration::instance().color (X_("theme:contrasting selection")));
set_waveform_colors ();
}
void
AudioClipEditor::drop_waves ()
{
@ -109,7 +137,7 @@ AudioClipEditor::set_region (boost::shared_ptr<AudioRegion> r)
continue;
}
WaveView* wv = new WaveView (frame, war);
WaveView* wv = new WaveView (waves_container, war);
wv->set_channel (n);
wv->set_show_zero_line (false);
wv->set_clip_level (1.0);
@ -120,6 +148,8 @@ AudioClipEditor::set_region (boost::shared_ptr<AudioRegion> r)
set_wave_spp (len);
set_wave_heights (frame->get().height() - 2.0);
set_waveform_colors ();
line_container->show ();
}
void
@ -130,6 +160,10 @@ AudioClipEditor::on_size_allocate (Gtk::Allocation& alloc)
ArdourCanvas::Rect r (1, 1, alloc.get_width() - 2, alloc.get_height() - 2);
frame->set (r);
start_line->set_y1 (frame->get().height() - 2.);
end_line->set_y1 (frame->get().height() - 2.);
loop_line->set_y1 (frame->get().height() - 2.);
set_wave_heights (r.height() - 2.0);
}

9
gtk2_ardour/audio_clip_editor.h
View file

@ -32,9 +32,10 @@
#include "gtkmm2ext/cairo_packer.h"
#include "canvas/table.h"
#include "canvas/canvas.h"
#include "canvas/container.h"
#include "canvas/rectangle.h"
#include "canvas/line.h"
#include "audio_clock.h"
@ -72,6 +73,11 @@ class AudioClipEditor : public ArdourCanvas::GtkCanvas
private:
ArdourCanvas::Rectangle* frame;
ArdourCanvas::Container* waves_container;
ArdourCanvas::Container* line_container;
ArdourCanvas::Line* start_line;
ArdourCanvas::Line* end_line;
ArdourCanvas::Line* loop_line;
std::vector<ArdourWaveView::WaveView *> waves;
double spp;
@ -80,6 +86,7 @@ class AudioClipEditor : public ArdourCanvas::GtkCanvas
void set_wave_heights (int);
void set_wave_spp (ARDOUR::samplecnt_t);
void set_waveform_colors ();
void set_colors ();
};
class AudioClipEditorBox : public ClipEditorBox