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audio clip editor: not-quite-working scrollbar

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Something about Canvas::ScrollGroup::scroll_to() is not working quite
as expected ... to be determined
This commit is contained in:
Paul Davis 2021-12-10 17:16:47 -07:00
parent 08e50934c9
commit e61c493fa5
2 changed files with 129 additions and 14 deletions
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22
gtk2_ardour/audio_clip_editor.h
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@ -109,8 +109,8 @@ class AudioClipEditor : public ArdourCanvas::GtkCanvas
std::vector<ArdourWaveView::WaveView *> waves;
double non_wave_height;
samplepos_t left_origin;
double scroll_fraction;
double _spp;
double scroll_fraction;
boost::shared_ptr<ARDOUR::AudioRegion> audio_region;
void scroll_left ();
@ -124,12 +124,14 @@ class AudioClipEditor : public ArdourCanvas::GtkCanvas
bool event_handler (GdkEvent* ev);
bool line_event_handler (GdkEvent* ev, ArdourCanvas::Line*);
bool scroll_event_handler (GdkEvent* ev);
void drop_waves ();
void set_wave_heights ();
void set_spp_from_length (ARDOUR::samplecnt_t);
void set_waveform_colors ();
void set_colors ();
void position_lines ();
void scroll_changed ();
class LineDrag {
public:
@ -145,7 +147,23 @@ class AudioClipEditor : public ArdourCanvas::GtkCanvas
};
friend class LineDrag;
LineDrag* _current_drag;
LineDrag* current_line_drag;
class ScrollDrag {
public:
ScrollDrag (AudioClipEditor&);
void begin (GdkEventButton*);
void end (GdkEventButton*);
void motion (GdkEventMotion*);
private:
AudioClipEditor& editor;
double last_x;
};
friend class ScrollDrag;
ScrollDrag* current_scroll_drag;
};
class AudioClipEditorBox : public ClipEditorBox