refactor editor-y zooms into EditingContext

This commit is contained in:
Paul Davis 2024-12-09 14:25:06 -07:00
parent c2b1748de7
commit a6ca9be006
9 changed files with 590 additions and 547 deletions

View file

@ -242,3 +242,21 @@ CueEditor::history_changed ()
update_undo_redo_actions (_history);
}
std::pair<Temporal::timepos_t,Temporal::timepos_t>
CueEditor::max_zoom_extent() const
{
return std::make_pair (Temporal::timepos_t (Temporal::Beats()), Temporal::timepos_t (Temporal::Beats (32, 0)));
}
Temporal::timepos_t
CueEditor::_get_preferred_edit_position (Editing::EditIgnoreOption ignore, bool from_context_menu, bool from_outside_canvas)
{
samplepos_t where;
bool in_track_canvas = false;
if (!mouse_sample (where, in_track_canvas)) {
return Temporal::timepos_t (0);
}
return Temporal::timepos_t (where);
}

View file

@ -104,5 +104,9 @@ class CueEditor : public EditingContext, public PBD::HistoryOwner, public sigc::
void do_undo (uint32_t n);
void do_redo (uint32_t n);
std::pair<Temporal::timepos_t,Temporal::timepos_t> max_zoom_extent() const;
Temporal::timepos_t _get_preferred_edit_position (Editing::EditIgnoreOption, bool use_context_click, bool from_outside_canvas);
};

View file

@ -20,6 +20,7 @@
#include "pbd/error.h"
#include "pbd/stacktrace.h"
#include "pbd/unwind.h"
#include "ardour/legatize.h"
#include "ardour/midi_region.h"
@ -112,6 +113,7 @@ Glib::RefPtr<Gtk::Action> EditingContext::alternate_alternate_redo_action;
EditingContext::EditingContext (std::string const & name)
: rubberband_rect (0)
, _name (name)
, within_track_canvas (false)
, pre_internal_grid_type (GridTypeBeat)
, pre_internal_snap_mode (SnapOff)
, internal_grid_type (GridTypeBeat)
@ -2762,3 +2764,392 @@ void
EditingContext::follow_playhead_clicked ()
{
}
void
EditingContext::cycle_zoom_focus ()
{
switch (zoom_focus) {
case ZoomFocusLeft:
set_zoom_focus (ZoomFocusRight);
break;
case ZoomFocusRight:
set_zoom_focus (ZoomFocusCenter);
break;
case ZoomFocusCenter:
set_zoom_focus (ZoomFocusPlayhead);
break;
case ZoomFocusPlayhead:
set_zoom_focus (ZoomFocusMouse);
break;
case ZoomFocusMouse:
set_zoom_focus (ZoomFocusEdit);
break;
case ZoomFocusEdit:
set_zoom_focus (ZoomFocusLeft);
break;
}
}
void
EditingContext::temporal_zoom_step_mouse_focus_scale (bool zoom_out, double scale)
{
PBD::Unwinder<Editing::ZoomFocus> zf (zoom_focus, Editing::ZoomFocusMouse);
temporal_zoom_step_scale (zoom_out, scale);
}
void
EditingContext::temporal_zoom_step_mouse_focus (bool zoom_out)
{
temporal_zoom_step_mouse_focus_scale (zoom_out, 2.0);
}
void
EditingContext::temporal_zoom_step (bool zoom_out)
{
temporal_zoom_step_scale (zoom_out, 2.0);
}
void
EditingContext::temporal_zoom_step_scale (bool zoom_out, double scale)
{
ENSURE_GUI_THREAD (*this, &EditingContext::temporal_zoom_step, zoom_out, scale)
samplecnt_t nspp = samples_per_pixel;
if (zoom_out) {
nspp *= scale;
if (nspp == samples_per_pixel) {
nspp *= 2.0;
}
} else {
nspp /= scale;
if (nspp == samples_per_pixel) {
nspp /= 2.0;
}
}
//zoom-behavior-tweaks
//limit our maximum zoom to the session gui extents value
std::pair<timepos_t, timepos_t> ext = max_zoom_extent();
samplecnt_t session_extents_pp = (ext.second.samples() - ext.first.samples()) / _visible_canvas_width;
if (nspp > session_extents_pp) {
nspp = session_extents_pp;
}
temporal_zoom (nspp);
}
void
EditingContext::temporal_zoom (samplecnt_t spp)
{
if (!_session) {
return;
}
samplepos_t current_page = current_page_samples();
samplepos_t current_leftmost = _leftmost_sample;
samplepos_t current_rightmost;
samplepos_t current_center;
samplepos_t new_page_size;
samplepos_t half_page_size;
samplepos_t leftmost_after_zoom = 0;
samplepos_t where;
bool in_track_canvas;
bool use_mouse_sample = true;
samplecnt_t nspp;
double l;
if (spp == samples_per_pixel) {
return;
}
// Imposing an arbitrary limit to zoom out as too much zoom out produces
// segfaults for lack of memory. If somebody decides this is not high enough I
// believe it can be raisen to higher values but some limit must be in place.
//
// This constant represents 1 day @ 48kHz on a 1600 pixel wide display
// all of which is used for the editor track displays. The whole day
// would be 4147200000 samples, so 2592000 samples per pixel.
nspp = std::min (spp, (samplecnt_t) 2592000);
nspp = std::max ((samplecnt_t) 1, nspp);
new_page_size = (samplepos_t) floor (_visible_canvas_width * nspp);
half_page_size = new_page_size / 2;
Editing::ZoomFocus zf = effective_zoom_focus();
switch (zf) {
case ZoomFocusLeft:
leftmost_after_zoom = current_leftmost;
break;
case ZoomFocusRight:
current_rightmost = _leftmost_sample + current_page;
if (current_rightmost < new_page_size) {
leftmost_after_zoom = 0;
} else {
leftmost_after_zoom = current_rightmost - new_page_size;
}
break;
case ZoomFocusCenter:
current_center = current_leftmost + (current_page/2);
if (current_center < half_page_size) {
leftmost_after_zoom = 0;
} else {
leftmost_after_zoom = current_center - half_page_size;
}
break;
case ZoomFocusPlayhead:
/* centre playhead */
l = _session->transport_sample() - (new_page_size * 0.5);
if (l < 0) {
leftmost_after_zoom = 0;
} else if (l > max_samplepos) {
leftmost_after_zoom = max_samplepos - new_page_size;
} else {
leftmost_after_zoom = (samplepos_t) l;
}
break;
case ZoomFocusMouse:
/* try to keep the mouse over the same point in the display */
if (_drags->active()) {
where = _drags->current_pointer_sample ();
} else if (!mouse_sample (where, in_track_canvas)) {
use_mouse_sample = false;
}
if (use_mouse_sample) {
l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
if (l < 0) {
leftmost_after_zoom = 0;
} else if (l > max_samplepos) {
leftmost_after_zoom = max_samplepos - new_page_size;
} else {
leftmost_after_zoom = (samplepos_t) l;
}
} else {
/* use playhead instead */
where = _session->transport_sample();
if (where < half_page_size) {
leftmost_after_zoom = 0;
} else {
leftmost_after_zoom = where - half_page_size;
}
}
break;
case ZoomFocusEdit:
/* try to keep the edit point in the same place */
where = get_preferred_edit_position ().samples();
{
double l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
if (l < 0) {
leftmost_after_zoom = 0;
} else if (l > max_samplepos) {
leftmost_after_zoom = max_samplepos - new_page_size;
} else {
leftmost_after_zoom = (samplepos_t) l;
}
}
break;
}
// leftmost_after_zoom = min (leftmost_after_zoom, _session->current_end_sample());
reposition_and_zoom (leftmost_after_zoom, nspp);
}
void
EditingContext::calc_extra_zoom_edges (samplepos_t &start, samplepos_t &end)
{
/* this func helps make sure we leave a little space
at each end of the editor so that the zoom doesn't fit the region
precisely to the screen.
*/
GdkScreen* screen = gdk_screen_get_default ();
const gint pixwidth = gdk_screen_get_width (screen);
const gint mmwidth = gdk_screen_get_width_mm (screen);
const double pix_per_mm = (double) pixwidth/ (double) mmwidth;
const double one_centimeter_in_pixels = pix_per_mm * 10.0;
const samplepos_t range = end - start;
const samplecnt_t new_fpp = (samplecnt_t) ceil ((double) range / (double) _visible_canvas_width);
const samplepos_t extra_samples = (samplepos_t) floor (one_centimeter_in_pixels * new_fpp);
if (start > extra_samples) {
start -= extra_samples;
} else {
start = 0;
}
if (max_samplepos - extra_samples > end) {
end += extra_samples;
} else {
end = max_samplepos;
}
}
void
EditingContext::temporal_zoom_by_sample (samplepos_t start, samplepos_t end)
{
if (!_session) return;
if ((start == 0 && end == 0) || end < start) {
return;
}
samplepos_t range = end - start;
const samplecnt_t new_fpp = (samplecnt_t) ceil ((double) range / (double) _visible_canvas_width);
samplepos_t new_page = range;
samplepos_t middle = (samplepos_t) floor ((double) start + ((double) range / 2.0f));
samplepos_t new_leftmost = (samplepos_t) floor ((double) middle - ((double) new_page / 2.0f));
if (new_leftmost > middle) {
new_leftmost = 0;
}
if (new_leftmost < 0) {
new_leftmost = 0;
}
reposition_and_zoom (new_leftmost, new_fpp);
}
void
EditingContext::temporal_zoom_to_sample (bool coarser, samplepos_t sample)
{
if (!_session) {
return;
}
samplecnt_t range_before = sample - _leftmost_sample;
samplecnt_t new_spp;
if (coarser) {
if (samples_per_pixel <= 1) {
new_spp = 2;
} else {
new_spp = samples_per_pixel + (samples_per_pixel/2);
}
range_before += range_before/2;
} else {
if (samples_per_pixel >= 1) {
new_spp = samples_per_pixel - (samples_per_pixel/2);
} else {
/* could bail out here since we cannot zoom any finer,
but leave that to the equality test below
*/
new_spp = samples_per_pixel;
}
range_before -= range_before/2;
}
if (new_spp == samples_per_pixel) {
return;
}
/* zoom focus is automatically taken as @p sample when this
method is used.
*/
samplepos_t new_leftmost = sample - (samplepos_t)range_before;
if (new_leftmost > sample) {
new_leftmost = 0;
}
if (new_leftmost < 0) {
new_leftmost = 0;
}
reposition_and_zoom (new_leftmost, new_spp);
}
bool
EditingContext::mouse_sample (samplepos_t& where, bool& in_track_canvas) const
{
/* gdk_window_get_pointer() has X11's XQueryPointer semantics in that it only
* pays attentions to subwindows. this means that menu windows are ignored, and
* if the pointer is in a menu, the return window from the call will be the
* the regular subwindow *under* the menu.
*
* this matters quite a lot if the pointer is moving around in a menu that overlaps
* the track canvas because we will believe that we are within the track canvas
* when we are not. therefore, we track enter/leave events for the track canvas
* and allow that to override the result of gdk_window_get_pointer().
*/
if (!within_track_canvas) {
return false;
}
int x, y;
Glib::RefPtr<Gdk::Window> canvas_window = const_cast<EditingContext*>(this)->get_canvas()->get_window();
if (!canvas_window) {
return false;
}
Glib::RefPtr<const Gdk::Window> pointer_window = Gdk::Display::get_default()->get_window_at_pointer (x, y);
if (!pointer_window) {
return false;
}
if (pointer_window != canvas_window) {
in_track_canvas = false;
return false;
}
in_track_canvas = true;
GdkEvent event;
event.type = GDK_BUTTON_RELEASE;
event.button.x = x;
event.button.y = y;
where = window_event_sample (&event, 0, 0);
return true;
}
samplepos_t
EditingContext::window_event_sample (GdkEvent const * event, double* pcx, double* pcy) const
{
ArdourCanvas::Duple d;
if (!gdk_event_get_coords (event, &d.x, &d.y)) {
return 0;
}
/* event coordinates are in window units, so convert to canvas
*/
d = get_canvas()->window_to_canvas (d);
if (pcx) {
*pcx = d.x;
}
if (pcy) {
*pcy = d.y;
}
return pixel_to_sample (d.x);
}

View file

@ -146,6 +146,12 @@ class EditingContext : public ARDOUR::SessionHandlePtr, public AxisViewProvider
/** @return true if the editor is following the playhead */
bool follow_playhead () const { return _follow_playhead; }
Temporal::timepos_t get_preferred_edit_position (Editing::EditIgnoreOption eio = Editing::EDIT_IGNORE_NONE,
bool use_context_click = false,
bool from_outside_canvas = false) {
return _get_preferred_edit_position (eio, use_context_click, from_outside_canvas);
}
virtual void instant_save() = 0;
virtual void begin_selection_op_history () = 0;
@ -172,9 +178,18 @@ class EditingContext : public ARDOUR::SessionHandlePtr, public AxisViewProvider
virtual void set_selected_midi_region_view (MidiRegionView&);
virtual void temporal_zoom_step (bool zoom_out) = 0;
samplecnt_t get_current_zoom () const { return samples_per_pixel; }
void temporal_zoom_step (bool zoom_out);
void temporal_zoom_step_scale (bool zoom_out, double scale);
void temporal_zoom_step_mouse_focus (bool zoom_out);
void temporal_zoom_step_mouse_focus_scale (bool zoom_out, double scale);
void calc_extra_zoom_edges(samplepos_t &start, samplepos_t &end);
void temporal_zoom (samplecnt_t samples_per_pixel);
void temporal_zoom_by_sample (samplepos_t start, samplepos_t end);
void temporal_zoom_to_sample (bool coarser, samplepos_t sample);
double timeline_origin() const { return _timeline_origin; }
/* NOTE: these functions assume that the "pixel" coordinate is
@ -309,6 +324,8 @@ class EditingContext : public ARDOUR::SessionHandlePtr, public AxisViewProvider
virtual void set_zoom_focus (Editing::ZoomFocus) = 0;
virtual Editing::ZoomFocus get_zoom_focus () const = 0;
void cycle_zoom_focus ();
virtual void reposition_and_zoom (samplepos_t, double) = 0;
sigc::signal<void> ZoomChanged;
@ -429,8 +446,18 @@ class EditingContext : public ARDOUR::SessionHandlePtr, public AxisViewProvider
virtual void set_canvas_cursor (Gdk::Cursor*);
/** computes the timeline sample (sample) of an event whose coordinates
* are in window units (pixels, no scroll offset).
*/
samplepos_t window_event_sample (GdkEvent const*, double* px = 0, double* py = 0) const;
/* returns false if mouse pointer is not in track or marker canvas
*/
bool mouse_sample (samplepos_t&, bool& in_track_canvas) const;
protected:
std::string _name;
bool within_track_canvas;
static Glib::RefPtr<Gtk::ActionGroup> _midi_actions;
static Glib::RefPtr<Gtk::ActionGroup> _common_actions;
@ -531,6 +558,7 @@ class EditingContext : public ARDOUR::SessionHandlePtr, public AxisViewProvider
samplecnt_t samples_per_pixel;
Editing::ZoomFocus zoom_focus;
virtual Editing::ZoomFocus effective_zoom_focus() const { return zoom_focus; }
Temporal::timepos_t _snap_to_bbt (Temporal::timepos_t const & start,
Temporal::RoundMode direction,
@ -699,6 +727,12 @@ class EditingContext : public ARDOUR::SessionHandlePtr, public AxisViewProvider
virtual void set_entered_track (TimeAxisView*) {};
virtual std::pair<Temporal::timepos_t,Temporal::timepos_t> max_zoom_extent() const = 0;
virtual Temporal::timepos_t _get_preferred_edit_position (Editing::EditIgnoreOption,
bool use_context_click,
bool from_outside_canvas) = 0;
PBD::ScopedConnection escape_connection;
virtual void escape () {}
@ -719,5 +753,3 @@ class EditingContext : public ARDOUR::SessionHandlePtr, public AxisViewProvider
static EditingContext* _current_editing_context;
};

View file

@ -247,7 +247,6 @@ Editor::Editor ()
, _popup_region_menu_item (0)
, _track_canvas (0)
, _track_canvas_viewport (0)
, within_track_canvas (false)
, _region_peak_cursor (0)
, tempo_group (0)
, meter_group (0)
@ -3378,31 +3377,6 @@ Editor::set_zoom_focus (ZoomFocus f)
}
}
void
Editor::cycle_zoom_focus ()
{
switch (zoom_focus) {
case ZoomFocusLeft:
set_zoom_focus (ZoomFocusRight);
break;
case ZoomFocusRight:
set_zoom_focus (ZoomFocusCenter);
break;
case ZoomFocusCenter:
set_zoom_focus (ZoomFocusPlayhead);
break;
case ZoomFocusPlayhead:
set_zoom_focus (ZoomFocusMouse);
break;
case ZoomFocusMouse:
set_zoom_focus (ZoomFocusEdit);
break;
case ZoomFocusEdit:
set_zoom_focus (ZoomFocusLeft);
break;
}
}
void
Editor::set_marker_click_behavior (MarkerClickBehavior m)
{
@ -4062,7 +4036,7 @@ Editor::sort_track_selection (TrackViewList& sel)
}
timepos_t
Editor::get_preferred_edit_position (EditIgnoreOption ignore, bool from_context_menu, bool from_outside_canvas)
Editor::_get_preferred_edit_position (EditIgnoreOption ignore, bool from_context_menu, bool from_outside_canvas)
{
bool ignored;
timepos_t where;

View file

@ -274,13 +274,6 @@ public:
bool process_midi_export_dialog (MidiExportDialog& dialog, std::shared_ptr<ARDOUR::MidiRegion> midi_region);
void set_zoom_focus (Editing::ZoomFocus);
Editing::ZoomFocus get_zoom_focus () const { return zoom_focus; }
void cycle_zoom_focus ();
void temporal_zoom_step (bool zoom_out);
void temporal_zoom_step_scale (bool zoom_out, double scale);
void temporal_zoom_step_mouse_focus (bool zoom_out);
void temporal_zoom_step_mouse_focus_scale (bool zoom_out, double scale);
void ensure_time_axis_view_is_visible (TimeAxisView const & tav, bool at_top);
void tav_zoom_step (bool coarser);
void tav_zoom_smooth (bool coarser, bool force_all);
@ -377,10 +370,6 @@ public:
void reset_x_origin_to_follow_playhead ();
Temporal::timepos_t get_preferred_edit_position (Editing::EditIgnoreOption = Editing::EDIT_IGNORE_NONE,
bool use_context_click = false,
bool from_outside_canvas = false);
void toggle_meter_updating();
void show_rhythm_ferret();
@ -514,6 +503,13 @@ public:
void focus_on_clock();
void set_zoom_focus (Editing::ZoomFocus);
Editing::ZoomFocus get_zoom_focus () const { return zoom_focus; }
void temporal_zoom_selection (Editing::ZoomAxis);
void temporal_zoom_session ();
void temporal_zoom_extents ();
protected:
void map_transport_state ();
void map_position_change (samplepos_t);
@ -529,6 +525,8 @@ protected:
void do_undo (uint32_t n);
void do_redo (uint32_t n);
Temporal::timepos_t _get_preferred_edit_position (Editing::EditIgnoreOption, bool use_context_click, bool from_outside_canvas);
private:
void color_handler ();
@ -778,8 +776,6 @@ private:
ArdourCanvas::GtkCanvas* _track_canvas;
ArdourCanvas::GtkCanvasViewport* _track_canvas_viewport;
bool within_track_canvas;
RegionPeakCursor* _region_peak_cursor;
void parameter_changed (std::string);
@ -1242,14 +1238,6 @@ private:
void group_selected_regions ();
void ungroup_selected_regions ();
void calc_extra_zoom_edges(samplepos_t &start, samplepos_t &end);
void temporal_zoom_selection (Editing::ZoomAxis);
void temporal_zoom_session ();
void temporal_zoom_extents ();
void temporal_zoom (samplecnt_t samples_per_pixel);
void temporal_zoom_by_sample (samplepos_t start, samplepos_t end);
void temporal_zoom_to_sample (bool coarser, samplepos_t sample);
std::shared_ptr<ARDOUR::Playlist> current_playlist () const;
void insert_source_list_selection (float times);
void cut_copy_section (ARDOUR::SectionOperation const op);
@ -1799,6 +1787,8 @@ private:
Gtk::HBox _box;
//zoom focus menu stuff
Editing::ZoomFocus effective_zoom_focus() const;
ArdourWidgets::ArdourDropdown zoom_focus_selector;
void zoom_focus_selection_done (Editing::ZoomFocus);
void build_zoom_focus_menu ();
@ -1989,15 +1979,6 @@ private:
void duplicate_range (bool with_dialog);
void duplicate_regions (float times);
/** computes the timeline sample (sample) of an event whose coordinates
* are in window units (pixels, no scroll offset).
*/
samplepos_t window_event_sample (GdkEvent const*, double* px = 0, double* py = 0) const;
/* returns false if mouse pointer is not in track or marker canvas
*/
bool mouse_sample (samplepos_t&, bool& in_track_canvas) const;
TimeFXDialog* current_timefx;
static void* timefx_thread (void* arg);
void do_timefx (bool fixed_end);
@ -2062,6 +2043,8 @@ private:
void set_entered_regionview (RegionView*);
gint left_automation_track ();
std::pair<Temporal::timepos_t,Temporal::timepos_t> max_zoom_extent() const { return session_gui_extents(); }
void reset_canvas_action_sensitivity (bool);
void set_gain_envelope_visibility ();
void set_region_gain_visibility (RegionView*);

View file

@ -98,79 +98,6 @@ using namespace Temporal;
using Gtkmm2ext::Keyboard;
bool
Editor::mouse_sample (samplepos_t& where, bool& in_track_canvas) const
{
/* gdk_window_get_pointer() has X11's XQueryPointer semantics in that it only
* pays attentions to subwindows. this means that menu windows are ignored, and
* if the pointer is in a menu, the return window from the call will be the
* the regular subwindow *under* the menu.
*
* this matters quite a lot if the pointer is moving around in a menu that overlaps
* the track canvas because we will believe that we are within the track canvas
* when we are not. therefore, we track enter/leave events for the track canvas
* and allow that to override the result of gdk_window_get_pointer().
*/
if (!within_track_canvas) {
return false;
}
int x, y;
Glib::RefPtr<Gdk::Window> canvas_window = const_cast<Editor*>(this)->_track_canvas->get_window();
if (!canvas_window) {
return false;
}
Glib::RefPtr<const Gdk::Window> pointer_window = Gdk::Display::get_default()->get_window_at_pointer (x, y);
if (!pointer_window) {
return false;
}
if (pointer_window != canvas_window) {
in_track_canvas = false;
return false;
}
in_track_canvas = true;
GdkEvent event;
event.type = GDK_BUTTON_RELEASE;
event.button.x = x;
event.button.y = y;
where = window_event_sample (&event, 0, 0);
return true;
}
samplepos_t
Editor::window_event_sample (GdkEvent const * event, double* pcx, double* pcy) const
{
ArdourCanvas::Duple d;
if (!gdk_event_get_coords (event, &d.x, &d.y)) {
return 0;
}
/* event coordinates are in window units, so convert to canvas
*/
d = _track_canvas->window_to_canvas (d);
if (pcx) {
*pcx = d.x;
}
if (pcy) {
*pcy = d.y;
}
return pixel_to_sample (d.x);
}
void
Editor::set_current_trimmable (std::shared_ptr<Trimmable> t)
{

View file

@ -1853,219 +1853,6 @@ Editor::tav_zoom_smooth (bool coarser, bool force_all)
}
}
void
Editor::temporal_zoom_step_mouse_focus_scale (bool zoom_out, double scale)
{
PBD::Unwinder<Editing::ZoomFocus> zf (zoom_focus, Editing::ZoomFocusMouse);
temporal_zoom_step_scale (zoom_out, scale);
}
void
Editor::temporal_zoom_step_mouse_focus (bool zoom_out)
{
temporal_zoom_step_mouse_focus_scale (zoom_out, 2.0);
}
void
Editor::temporal_zoom_step (bool zoom_out)
{
temporal_zoom_step_scale (zoom_out, 2.0);
}
void
Editor::temporal_zoom_step_scale (bool zoom_out, double scale)
{
ENSURE_GUI_THREAD (*this, &Editor::temporal_zoom_step, zoom_out, scale)
samplecnt_t nspp = samples_per_pixel;
if (zoom_out) {
nspp *= scale;
if (nspp == samples_per_pixel) {
nspp *= 2.0;
}
} else {
nspp /= scale;
if (nspp == samples_per_pixel) {
nspp /= 2.0;
}
}
//zoom-behavior-tweaks
//limit our maximum zoom to the session gui extents value
std::pair<timepos_t, timepos_t> ext = session_gui_extents();
samplecnt_t session_extents_pp = (ext.second.samples() - ext.first.samples()) / _visible_canvas_width;
if (nspp > session_extents_pp) {
nspp = session_extents_pp;
}
temporal_zoom (nspp);
}
void
Editor::temporal_zoom (samplecnt_t spp)
{
if (!_session) {
return;
}
samplepos_t current_page = current_page_samples();
samplepos_t current_leftmost = _leftmost_sample;
samplepos_t current_rightmost;
samplepos_t current_center;
samplepos_t new_page_size;
samplepos_t half_page_size;
samplepos_t leftmost_after_zoom = 0;
samplepos_t where;
bool in_track_canvas;
bool use_mouse_sample = true;
samplecnt_t nspp;
double l;
if (spp == samples_per_pixel) {
return;
}
// Imposing an arbitrary limit to zoom out as too much zoom out produces
// segfaults for lack of memory. If somebody decides this is not high enough I
// believe it can be raisen to higher values but some limit must be in place.
//
// This constant represents 1 day @ 48kHz on a 1600 pixel wide display
// all of which is used for the editor track displays. The whole day
// would be 4147200000 samples, so 2592000 samples per pixel.
nspp = min (spp, (samplecnt_t) 2592000);
nspp = max ((samplecnt_t) 1, nspp);
new_page_size = (samplepos_t) floor (_visible_canvas_width * nspp);
half_page_size = new_page_size / 2;
Editing::ZoomFocus zf = zoom_focus;
if (zf == ZoomFocusEdit && _edit_point == EditAtMouse) {
zf = ZoomFocusMouse;
}
switch (zf) {
case ZoomFocusLeft:
leftmost_after_zoom = current_leftmost;
break;
case ZoomFocusRight:
current_rightmost = _leftmost_sample + current_page;
if (current_rightmost < new_page_size) {
leftmost_after_zoom = 0;
} else {
leftmost_after_zoom = current_rightmost - new_page_size;
}
break;
case ZoomFocusCenter:
current_center = current_leftmost + (current_page/2);
if (current_center < half_page_size) {
leftmost_after_zoom = 0;
} else {
leftmost_after_zoom = current_center - half_page_size;
}
break;
case ZoomFocusPlayhead:
/* centre playhead */
l = _playhead_cursor->current_sample () - (new_page_size * 0.5);
if (l < 0) {
leftmost_after_zoom = 0;
} else if (l > max_samplepos) {
leftmost_after_zoom = max_samplepos - new_page_size;
} else {
leftmost_after_zoom = (samplepos_t) l;
}
break;
case ZoomFocusMouse:
/* try to keep the mouse over the same point in the display */
if (_drags->active()) {
where = _drags->current_pointer_sample ();
} else if (!mouse_sample (where, in_track_canvas)) {
use_mouse_sample = false;
}
if (use_mouse_sample) {
l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
if (l < 0) {
leftmost_after_zoom = 0;
} else if (l > max_samplepos) {
leftmost_after_zoom = max_samplepos - new_page_size;
} else {
leftmost_after_zoom = (samplepos_t) l;
}
} else {
/* use playhead instead */
where = _playhead_cursor->current_sample ();
if (where < half_page_size) {
leftmost_after_zoom = 0;
} else {
leftmost_after_zoom = where - half_page_size;
}
}
break;
case ZoomFocusEdit:
/* try to keep the edit point in the same place */
where = get_preferred_edit_position ().samples();
{
double l = - ((new_page_size * ((where - current_leftmost)/(double)current_page)) - where);
if (l < 0) {
leftmost_after_zoom = 0;
} else if (l > max_samplepos) {
leftmost_after_zoom = max_samplepos - new_page_size;
} else {
leftmost_after_zoom = (samplepos_t) l;
}
}
break;
}
// leftmost_after_zoom = min (leftmost_after_zoom, _session->current_end_sample());
reposition_and_zoom (leftmost_after_zoom, nspp);
}
void
Editor::calc_extra_zoom_edges(samplepos_t &start, samplepos_t &end)
{
/* this func helps make sure we leave a little space
at each end of the editor so that the zoom doesn't fit the region
precisely to the screen.
*/
GdkScreen* screen = gdk_screen_get_default ();
const gint pixwidth = gdk_screen_get_width (screen);
const gint mmwidth = gdk_screen_get_width_mm (screen);
const double pix_per_mm = (double) pixwidth/ (double) mmwidth;
const double one_centimeter_in_pixels = pix_per_mm * 10.0;
const samplepos_t range = end - start;
const samplecnt_t new_fpp = (samplecnt_t) ceil ((double) range / (double) _visible_canvas_width);
const samplepos_t extra_samples = (samplepos_t) floor (one_centimeter_in_pixels * new_fpp);
if (start > extra_samples) {
start -= extra_samples;
} else {
start = 0;
}
if (max_samplepos - extra_samples > end) {
end += extra_samples;
} else {
end = max_samplepos;
}
}
bool
Editor::get_selection_extents (timepos_t &start, timepos_t &end) const
@ -2107,205 +1894,6 @@ Editor::get_selection_extents (timepos_t &start, timepos_t &end) const
return ret;
}
void
Editor::temporal_zoom_selection (Editing::ZoomAxis axes)
{
if (!selection) return;
if (selection->regions.empty() && selection->time.empty()) {
if (axes == Horizontal || axes == Both) {
temporal_zoom_step(true);
}
if (axes == Vertical || axes == Both) {
if (!track_views.empty()) {
TrackViewList tvl;
//implicit hack: by extending the top & bottom check outside the current view limits, we include the trackviews immediately above & below what is visible
const double top = vertical_adjustment.get_value() - 10;
const double btm = top + _visible_canvas_height + 10;
for (TrackViewList::iterator iter = track_views.begin(); iter != track_views.end(); ++iter) {
if ((*iter)->covered_by_y_range (top, btm)) {
tvl.push_back(*iter);
}
}
fit_tracks (tvl);
}
}
return;
}
//ToDo: if notes are selected, zoom to that
//ToDo: if control points are selected, zoom to that
if (axes == Horizontal || axes == Both) {
timepos_t start, end;
if (get_selection_extents (start, end)) {
samplepos_t s = start.samples();
samplepos_t e = end.samples();
calc_extra_zoom_edges (s, e);
temporal_zoom_by_sample (s, e);
}
}
if (axes == Vertical || axes == Both) {
fit_selection ();
}
//normally, we don't do anything "automatic" to the user's selection.
//but in this case, we will clear the selection after a zoom-to-selection.
selection->clear();
}
void
Editor::temporal_zoom_session ()
{
ENSURE_GUI_THREAD (*this, &Editor::temporal_zoom_session)
if (_session) {
samplecnt_t start = _session->current_start_sample();
samplecnt_t end = _session->current_end_sample();
if (_session->actively_recording ()) {
samplepos_t cur = _playhead_cursor->current_sample ();
if (cur > end) {
/* recording beyond the end marker; zoom out
* by 5 seconds more so that if 'follow
* playhead' is active we don't immediately
* scroll.
*/
end = cur + _session->sample_rate() * 5;
}
}
if ((start == 0 && end == 0) || end < start) {
return;
}
calc_extra_zoom_edges(start, end);
temporal_zoom_by_sample (start, end);
}
}
void
Editor::temporal_zoom_extents ()
{
ENSURE_GUI_THREAD (*this, &Editor::temporal_zoom_extents)
if (_session) {
std::pair<timepos_t, timepos_t> ext = session_gui_extents (false); //in this case we want to zoom to the extents explicitly; ignore the users prefs for extra padding
samplecnt_t start = ext.first.samples();
samplecnt_t end = ext.second.samples();
if (_session->actively_recording ()) {
samplepos_t cur = _playhead_cursor->current_sample ();
if (cur > end) {
/* recording beyond the end marker; zoom out
* by 5 seconds more so that if 'follow
* playhead' is active we don't immediately
* scroll.
*/
end = cur + _session->sample_rate() * 5;
}
}
if ((start == 0 && end == 0) || end < start) {
return;
}
calc_extra_zoom_edges(start, end);
temporal_zoom_by_sample (start, end);
}
}
void
Editor::temporal_zoom_by_sample (samplepos_t start, samplepos_t end)
{
if (!_session) return;
if ((start == 0 && end == 0) || end < start) {
return;
}
samplepos_t range = end - start;
const samplecnt_t new_fpp = (samplecnt_t) ceil ((double) range / (double) _visible_canvas_width);
samplepos_t new_page = range;
samplepos_t middle = (samplepos_t) floor ((double) start + ((double) range / 2.0f));
samplepos_t new_leftmost = (samplepos_t) floor ((double) middle - ((double) new_page / 2.0f));
if (new_leftmost > middle) {
new_leftmost = 0;
}
if (new_leftmost < 0) {
new_leftmost = 0;
}
reposition_and_zoom (new_leftmost, new_fpp);
}
void
Editor::temporal_zoom_to_sample (bool coarser, samplepos_t sample)
{
if (!_session) {
return;
}
samplecnt_t range_before = sample - _leftmost_sample;
samplecnt_t new_spp;
if (coarser) {
if (samples_per_pixel <= 1) {
new_spp = 2;
} else {
new_spp = samples_per_pixel + (samples_per_pixel/2);
}
range_before += range_before/2;
} else {
if (samples_per_pixel >= 1) {
new_spp = samples_per_pixel - (samples_per_pixel/2);
} else {
/* could bail out here since we cannot zoom any finer,
but leave that to the equality test below
*/
new_spp = samples_per_pixel;
}
range_before -= range_before/2;
}
if (new_spp == samples_per_pixel) {
return;
}
/* zoom focus is automatically taken as @p sample when this
method is used.
*/
samplepos_t new_leftmost = sample - (samplepos_t)range_before;
if (new_leftmost > sample) {
new_leftmost = 0;
}
if (new_leftmost < 0) {
new_leftmost = 0;
}
reposition_and_zoom (new_leftmost, new_spp);
}
bool
Editor::choose_new_marker_name(string &name, bool is_range) {
@ -9804,3 +9392,131 @@ Editor::ripple_marks (std::shared_ptr<Playlist> target_playlist, timepos_t at, t
_session->locations()->ripple (at, distance, false);
_session->add_command (new MementoCommand<Locations> (*_session->locations(), &before, &_session->locations()->get_state()));
}
Editing::ZoomFocus
Editor::effective_zoom_focus() const
{
if (zoom_focus == ZoomFocusEdit && _edit_point == EditAtMouse) {
return ZoomFocusMouse;
}
return zoom_focus;
}
void
Editor::temporal_zoom_selection (Editing::ZoomAxis axes)
{
if (!selection) return;
if (selection->regions.empty() && selection->time.empty()) {
if (axes == Horizontal || axes == Both) {
temporal_zoom_step(true);
}
if (axes == Vertical || axes == Both) {
if (!track_views.empty()) {
TrackViewList tvl;
//implicit hack: by extending the top & bottom check outside the current view limits, we include the trackviews immediately above & below what is visible
const double top = vertical_adjustment.get_value() - 10;
const double btm = top + _visible_canvas_height + 10;
for (TrackViewList::iterator iter = track_views.begin(); iter != track_views.end(); ++iter) {
if ((*iter)->covered_by_y_range (top, btm)) {
tvl.push_back(*iter);
}
}
fit_tracks (tvl);
}
}
return;
}
//ToDo: if notes are selected, zoom to that
//ToDo: if control points are selected, zoom to that
if (axes == Horizontal || axes == Both) {
timepos_t start, end;
if (get_selection_extents (start, end)) {
samplepos_t s = start.samples();
samplepos_t e = end.samples();
calc_extra_zoom_edges (s, e);
temporal_zoom_by_sample (s, e);
}
}
if (axes == Vertical || axes == Both) {
fit_selection ();
}
//normally, we don't do anything "automatic" to the user's selection.
//but in this case, we will clear the selection after a zoom-to-selection.
selection->clear();
}
void
Editor::temporal_zoom_session ()
{
ENSURE_GUI_THREAD (*this, &Editor::temporal_zoom_session)
if (_session) {
samplecnt_t start = _session->current_start_sample();
samplecnt_t end = _session->current_end_sample();
if (_session->actively_recording ()) {
samplepos_t cur = _playhead_cursor->current_sample ();
if (cur > end) {
/* recording beyond the end marker; zoom out
* by 5 seconds more so that if 'follow
* playhead' is active we don't immediately
* scroll.
*/
end = cur + _session->sample_rate() * 5;
}
}
if ((start == 0 && end == 0) || end < start) {
return;
}
calc_extra_zoom_edges(start, end);
temporal_zoom_by_sample (start, end);
}
}
void
Editor::temporal_zoom_extents ()
{
ENSURE_GUI_THREAD (*this, &Editor::temporal_zoom_extents)
if (_session) {
std::pair<timepos_t, timepos_t> ext = session_gui_extents (false); //in this case we want to zoom to the extents explicitly; ignore the users prefs for extra padding
samplecnt_t start = ext.first.samples();
samplecnt_t end = ext.second.samples();
if (_session->actively_recording ()) {
samplepos_t cur = _playhead_cursor->current_sample ();
if (cur > end) {
/* recording beyond the end marker; zoom out
* by 5 seconds more so that if 'follow
* playhead' is active we don't immediately
* scroll.
*/
end = cur + _session->sample_rate() * 5;
}
}
if ((start == 0 && end == 0) || end < start) {
return;
}
calc_extra_zoom_edges(start, end);
temporal_zoom_by_sample (start, end);
}
}

View file

@ -290,7 +290,6 @@ public:
virtual samplepos_t leftmost_sample() const = 0;
virtual samplecnt_t current_page_samples() const = 0;
virtual double visible_canvas_height () const = 0;
virtual void temporal_zoom_step (bool coarser) = 0;
virtual void ensure_time_axis_view_is_visible (TimeAxisView const & tav, bool at_top = false) = 0;
virtual void override_visible_track_count () = 0;
virtual void scroll_tracks_down_line () = 0;
@ -306,7 +305,6 @@ public:
virtual void remove_last_capture () = 0;
virtual void maximise_editing_space () = 0;
virtual void restore_editing_space () = 0;
virtual Temporal::timepos_t get_preferred_edit_position (Editing::EditIgnoreOption = Editing::EDIT_IGNORE_NONE, bool from_context_menu = false, bool from_outside_canvas = false) = 0;
virtual void toggle_meter_updating() = 0;
virtual void split_regions_at (Temporal::timepos_t const &, RegionSelection&) = 0;
virtual void split_region_at_points (std::shared_ptr<ARDOUR::Region>, ARDOUR::AnalysisFeatureList&, bool can_ferret, bool select_new = false) = 0;