*/
-#include "canvas/line.h"
+#include "pbd/compose.h"
+
#include "canvas/canvas.h"
#include "canvas/debug.h"
+
#include "tempo_lines.h"
#include "ardour_ui.h"
+#include "public_editor.h"
using namespace std;
-TempoLines::TempoLines (ArdourCanvas::Canvas& canvas, ArdourCanvas::Group* group, double screen_height)
- : _canvas (canvas)
- , _group (group)
- , _height (screen_height)
+TempoLines::TempoLines (ArdourCanvas::Container* group, double)
+ : lines (group, ArdourCanvas::LineSet::Vertical)
{
+ lines.set_extent (ArdourCanvas::COORD_MAX);
}
void
TempoLines::tempo_map_changed()
{
- /* remove all lines from the group, put them in the cache (to avoid
- * unnecessary object destruction+construction later), and clear _lines
- */
-
- _group->clear ();
- _cache.insert (_cache.end(), _lines.begin(), _lines.end());
- _lines.clear ();
+ lines.clear ();
}
void
TempoLines::show ()
{
- _group->show ();
+ lines.show ();
}
void
TempoLines::hide ()
{
- _group->hide ();
+ lines.hide ();
}
void
TempoLines::draw (const ARDOUR::TempoMap::BBTPointList::const_iterator& begin,
- const ARDOUR::TempoMap::BBTPointList::const_iterator& end,
- double samples_per_pixel)
+ const ARDOUR::TempoMap::BBTPointList::const_iterator& end)
{
ARDOUR::TempoMap::BBTPointList::const_iterator i;
- ArdourCanvas::Rect const visible = _canvas.visible_area ();
double beat_density;
uint32_t beats = 0;
bars = (*i).bar - (*begin).bar;
beats = distance (begin, end) - bars;
- beat_density = (beats * 10.0f) / visible.width ();
+ beat_density = (beats * 10.0f) / lines.canvas()->width();
if (beat_density > 4.0f) {
/* if the lines are too close together, they become useless */
- tempo_map_changed();
+ lines.clear ();
return;
}
- tempo_map_changed ();
+ lines.clear ();
for (i = begin; i != end; ++i) {
if ((*i).is_bar()) {
color = ARDOUR_UI::config()->get_canvasvar_MeasureLineBar();
} else {
- if (beat_density > 2.0) {
+ if (beat_density > 0.3) {
continue; /* only draw beat lines if the gaps between beats are large. */
}
color = ARDOUR_UI::config()->get_canvasvar_MeasureLineBeat();
}
- ArdourCanvas::Coord xpos = rint(((framepos_t)(*i).frame) / (double)samples_per_pixel);
-
- ArdourCanvas::Line* line;
-
- if (!_cache.empty()) {
- line = _cache.back ();
- _cache.pop_back ();
- line->reparent (_group);
- } else {
- line = new ArdourCanvas::Line (_group);
- CANVAS_DEBUG_NAME (line, "tempo measure line");
- line->set_ignore_events (true);
- }
+ ArdourCanvas::Coord xpos = PublicEditor::instance().sample_to_pixel_unrounded ((*i).frame);
- line->set_x0 (xpos);
- line->set_x1 (xpos);
- line->set_y0 (0.0);
- line->set_y1 (_height);
- line->set_outline_color (color);
- line->show ();
+ lines.add (xpos, 1.0, color);
}
}