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refactor code for region trimming from Pianoroll/MidiView

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This splits out boundary-dragging things into boundary.{cc,h} and the rest
into CueEditor
This commit is contained in:
Paul Davis 2025-08-27 14:02:02 -06:00
parent cd9fe29347
commit 6187dd35c8
11 changed files with 250 additions and 190 deletions
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95
gtk2_ardour/midi_view.cc
View file

@ -5364,98 +5364,3 @@ MidiView::set_visible_channel (int chn, bool clear_selection)
}
}
void
StartBoundaryRect::render (ArdourCanvas::Rect const & area, Cairo::RefPtr<Cairo::Context> context) const
{
Rectangle::render (area, context);
ArdourCanvas::Rect self (item_to_window (_rect));
const double scale = UIConfiguration::instance().get_ui_scale();
const double radius = 10. * scale;
context->arc (self.x1, (self.y0 + (self.height() / 2.)) - radius, radius, -(M_PI/2.), (M_PI/2.));
Gtkmm2ext::set_source_rgba (context, _outline_color);
context->fill ();
}
bool
StartBoundaryRect::covers (ArdourCanvas::Duple const & point) const
{
ArdourCanvas::Rect self (item_to_window (_rect));
const double scale = UIConfiguration::instance().get_ui_scale();
if ((point.x >= self.x1 - (20. * scale)) && (point.x < self.x1)) {
/* within 20 (scaled) pixels of the boundary, on the right */
return true;
}
/* Approximate the semicircle handle with a square */
const double radius = 10. * scale;
double cy = self.y0 + (self.height() / 2.);
if (point.x >= self.x1 && point.x < self.x1 + radius &&
point.y >= cy - radius && point.y < cy + radius) {
/*inside rectangle that approximates the handle */
return true;
}
return false;
}
void
StartBoundaryRect::compute_bounding_box() const
{
Rectangle::compute_bounding_box ();
const double scale = UIConfiguration::instance().get_ui_scale();
const double radius = 10. * scale;
_bounding_box = _bounding_box.expand (0., radius + _outline_width + 1.0, 0., 0.);
}
void
EndBoundaryRect::render (ArdourCanvas::Rect const & area, Cairo::RefPtr<Cairo::Context> context) const
{
Rectangle::render (area, context);
ArdourCanvas::Rect self (item_to_window (_rect));
const double scale = UIConfiguration::instance().get_ui_scale();
const double radius = 10. * scale;
context->arc (self.x0, (self.y0 + (self.height() / 2.)) - radius, radius, (M_PI/2.), -(M_PI/2.));
Gtkmm2ext::set_source_rgba (context, _outline_color);
context->fill ();
}
bool
EndBoundaryRect::covers (ArdourCanvas::Duple const & point) const
{
ArdourCanvas::Rect self (item_to_window (_rect));
const double scale = UIConfiguration::instance().get_ui_scale();
if ((point.x >= self.x0) && (point.x < self.x0 + (20. * scale))) {
/* within 20 (scaled) pixels of the left edge */
return true;
}
/* Approximate the semicircle handle with a square */
const double radius = 10. * scale;
double cy = self.y0 + (self.height() / 2.);
if (point.x <= self.x0 && point.x >= self.x0 - radius && point.y >= cy - radius && point.y < cy + radius) {
/* within a rectangle approximating the handle */
return true;
}
return false;
}
void
EndBoundaryRect::compute_bounding_box() const
{
Rectangle::compute_bounding_box ();
const double scale = UIConfiguration::instance().get_ui_scale();
const double radius = 10. * scale;
_bounding_box = _bounding_box.expand (0., 0., 0., radius + _outline_width);
}