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get mouse-centered zoom working in cue editor

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This commit is contained in:
Paul Davis 2024-12-12 11:52:35 -07:00
parent 953091bdd2
commit 0ff0d4df8b
5 changed files with 10 additions and 4 deletions
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2
gtk2_ardour/cue_editor.h
View file

@ -72,7 +72,7 @@ class CueEditor : public EditingContext, public PBD::HistoryOwner, public sigc::
void set_zoom_focus (Editing::ZoomFocus);
samplecnt_t get_current_zoom () const;
void set_samples_per_pixel (samplecnt_t);
virtual void set_samples_per_pixel (samplecnt_t);
void reposition_and_zoom (samplepos_t, double);
void set_mouse_mode (Editing::MouseMode, bool force = false);

6
gtk2_ardour/editing_context.cc
View file

@ -139,6 +139,7 @@ EditingContext::EditingContext (std::string const & name)
, bbt_ruler_scale (bbt_show_many)
, bbt_bars (0)
, bbt_bar_helper_on (0)
, _track_canvas_width (0)
, _visible_canvas_width (0)
, _visible_canvas_height (0)
, quantize_dialog (nullptr)
@ -2874,7 +2875,7 @@ EditingContext::temporal_zoom (samplecnt_t spp)
nspp = std::min (spp, (samplecnt_t) 2592000);
nspp = std::max ((samplecnt_t) 1, nspp);
new_page_size = (samplepos_t) floor (_visible_canvas_width * nspp);
new_page_size = (samplepos_t) floor (_track_canvas_width * nspp);
half_page_size = new_page_size / 2;
Editing::ZoomFocus zf = effective_zoom_focus();
@ -2925,6 +2926,7 @@ EditingContext::temporal_zoom (samplecnt_t spp)
}
if (use_mouse_sample) {
l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
if (l < 0) {
@ -3150,6 +3152,6 @@ EditingContext::window_event_sample (GdkEvent const * event, double* pcx, double
*pcy = d.y;
}
return pixel_to_sample (d.x);
return pixel_to_sample (canvas_to_timeline (d.x));
}

3
gtk2_ardour/editing_context.h
View file

@ -319,7 +319,7 @@ class EditingContext : public ARDOUR::SessionHandlePtr, public AxisViewProvider
void reset_x_origin (samplepos_t);
void reset_y_origin (double);
void reset_zoom (samplecnt_t);
void set_samples_per_pixel (samplecnt_t);
virtual void set_samples_per_pixel (samplecnt_t) = 0;
virtual void on_samples_per_pixel_changed () {}
virtual void cycle_zoom_focus ();
@ -599,6 +599,7 @@ class EditingContext : public ARDOUR::SessionHandlePtr, public AxisViewProvider
uint32_t count_bars (Temporal::Beats const & start, Temporal::Beats const & end) const;
void compute_bbt_ruler_scale (samplepos_t lower, samplepos_t upper);
double _track_canvas_width;
double _visible_canvas_width;
double _visible_canvas_height; ///< height of the visible area of the track canvas

1
gtk2_ardour/editor_canvas.cc
View file

@ -314,6 +314,7 @@ Editor::track_canvas_viewport_size_allocated ()
_visible_canvas_width = _canvas_viewport_allocation.get_width ();
_visible_canvas_height = _canvas_viewport_allocation.get_height ();
_track_canvas_width = _visible_canvas_width;
_canvas_drop_zone->set_y1 (_canvas_drop_zone->y0() + (_visible_canvas_height - 20.0));

2
gtk2_ardour/midi_cue_editor.cc
View file

@ -412,6 +412,8 @@ MidiCueEditor::canvas_allocate (Gtk::Allocation alloc)
bg->set_size (alloc.get_width(), alloc.get_height() - timebars);
view->set_height (alloc.get_height() - timebars);
prh->set (ArdourCanvas::Rect (0, 0, prh->x1(), view->midi_context().height()));
_track_canvas_width = _visible_canvas_width - prh->x1();
}
timepos_t