/*
- Copyright (C) 2009 Paul Davis
+ Copyright (C) 2009 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#include "region_view.h"
#include "rgb_macros.h"
#include "keyboard.h"
+#include "editor_routes.h"
+#include "editor_cursors.h"
+#include "mouse_cursors.h"
using namespace std;
-using namespace sigc;
using namespace ARDOUR;
+using Gtkmm2ext::Keyboard;
/** Construct an EditorSummary.
* @param e Editor to represent.
*/
EditorSummary::EditorSummary (Editor* e)
- : _editor (e),
- _session (0),
- _pixmap (0),
- _regions_dirty (true),
- _width (512),
- _height (64),
+ : EditorComponent (e),
+ _start (0),
+ _end (1),
+ _overhang_fraction (0.1),
_x_scale (1),
- _y_scale (1),
+ _track_height (16),
+ _last_playhead (-1),
_move_dragging (false),
_moved (false),
+ _view_rectangle_x (0, 0),
+ _view_rectangle_y (0, 0),
_zoom_dragging (false)
-
{
-
+ Region::RegionPropertyChanged.connect (region_property_connection, invalidator (*this), boost::bind (&CairoWidget::set_dirty, this), gui_context());
+ _editor->playhead_cursor->PositionChanged.connect (position_connection, invalidator (*this), ui_bind (&EditorSummary::playhead_position_changed, this, _1), gui_context());
+
+ add_events (Gdk::POINTER_MOTION_MASK);
}
-/** Set the session.
+/** Connect to a session.
* @param s Session.
*/
void
EditorSummary::set_session (Session* s)
{
- _session = s;
-
- Region::RegionPropertyChanged.connect (sigc::hide (mem_fun (*this, &EditorSummary::set_dirty)));
-
- _session->RegionRemoved.connect (sigc::hide (mem_fun (*this, &EditorSummary::set_dirty)));
- _session->EndTimeChanged.connect (mem_fun (*this, &EditorSummary::set_dirty));
- _session->StartTimeChanged.connect (mem_fun (*this, &EditorSummary::set_dirty));
+ SessionHandlePtr::set_session (s);
set_dirty ();
-}
-/** Destroy */
-EditorSummary::~EditorSummary ()
-{
- if (_pixmap) {
- gdk_pixmap_unref (_pixmap);
+ /* Note: the EditorSummary already finds out about new regions from Editor::region_view_added
+ * (which attaches to StreamView::RegionViewAdded), and cut regions by the RegionPropertyChanged
+ * emitted when a cut region is added to the `cutlist' playlist.
+ */
+
+ if (_session) {
+ _session->StartTimeChanged.connect (_session_connections, invalidator (*this), boost::bind (&EditorSummary::set_dirty, this), gui_context());
+ _session->EndTimeChanged.connect (_session_connections, invalidator (*this), boost::bind (&EditorSummary::set_dirty, this), gui_context());
}
}
bool
EditorSummary::on_expose_event (GdkEventExpose* event)
{
- /* Render the regions pixmap */
-
- Gdk::Rectangle const exposure (
- event->area.x, event->area.y, event->area.width, event->area.height
- );
+ CairoWidget::on_expose_event (event);
- Gdk::Rectangle r = exposure;
- Gdk::Rectangle content (0, 0, _width, _height);
- bool intersects;
- r.intersect (content, intersects);
-
- if (intersects) {
-
- GdkPixmap* p = get_pixmap (get_window()->gobj ());
-
- gdk_draw_drawable (
- get_window()->gobj(),
- get_style()->get_fg_gc (Gtk::STATE_NORMAL)->gobj(),
- p,
- r.get_x(),
- r.get_y(),
- r.get_x(),
- r.get_y(),
- r.get_width(),
- r.get_height()
- );
+ if (_session == 0) {
+ return false;
}
- /* Render the view rectangle */
-
- pair<double, double> x;
- pair<double, double> y;
- editor_view (&x, &y);
-
cairo_t* cr = gdk_cairo_create (get_window()->gobj());
- cairo_move_to (cr, x.first, y.first);
- cairo_line_to (cr, x.second, y.first);
- cairo_line_to (cr, x.second, y.second);
- cairo_line_to (cr, x.first, y.second);
- cairo_line_to (cr, x.first, y.first);
+ /* Render the view rectangle. If there is an editor visual pending, don't update
+ the view rectangle now --- wait until the expose event that we'll get after
+ the visual change. This prevents a flicker.
+ */
+
+ if (_editor->pending_visual_change.idle_handler_id < 0) {
+ get_editor (&_view_rectangle_x, &_view_rectangle_y);
+ }
+
+ cairo_move_to (cr, _view_rectangle_x.first, _view_rectangle_y.first);
+ cairo_line_to (cr, _view_rectangle_x.second, _view_rectangle_y.first);
+ cairo_line_to (cr, _view_rectangle_x.second, _view_rectangle_y.second);
+ cairo_line_to (cr, _view_rectangle_x.first, _view_rectangle_y.second);
+ cairo_line_to (cr, _view_rectangle_x.first, _view_rectangle_y.first);
cairo_set_source_rgba (cr, 1, 1, 1, 0.25);
cairo_fill_preserve (cr);
cairo_set_line_width (cr, 1);
cairo_set_source_rgba (cr, 1, 1, 1, 0.5);
cairo_stroke (cr);
- cairo_destroy (cr);
-
- return true;
-}
+ /* Playhead */
-/** @param drawable GDK drawable.
- * @return pixmap for the regions.
- */
-GdkPixmap *
-EditorSummary::get_pixmap (GdkDrawable* drawable)
-{
- if (_regions_dirty) {
-
- if (_pixmap) {
- gdk_pixmap_unref (_pixmap);
- }
- _pixmap = gdk_pixmap_new (drawable, _width, _height, -1);
+ cairo_set_line_width (cr, 1);
+ /* XXX: colour should be set from configuration file */
+ cairo_set_source_rgba (cr, 1, 0, 0, 1);
- cairo_t* cr = gdk_cairo_create (_pixmap);
- render (cr);
- cairo_destroy (cr);
+ double const p = (_editor->playhead_cursor->current_frame - _start) * _x_scale;
+ cairo_move_to (cr, p, 0);
+ cairo_line_to (cr, p, _height);
+ cairo_stroke (cr);
+ _last_playhead = p;
- _regions_dirty = false;
- }
+ cairo_destroy (cr);
- return _pixmap;
+ return true;
}
/** Render the required regions to a cairo context.
void
EditorSummary::render (cairo_t* cr)
{
- if (_session == 0) {
- return;
- }
-
/* background */
-
+
cairo_set_source_rgb (cr, 0, 0, 0);
cairo_rectangle (cr, 0, 0, _width, _height);
cairo_fill (cr);
- /* compute total height of all tracks */
-
- int h = 0;
- int max_height = 0;
- for (PublicEditor::TrackViewList::const_iterator i = _editor->track_views.begin(); i != _editor->track_views.end(); ++i) {
- int const t = (*i)->effective_height ();
- h += t;
- max_height = max (max_height, t);
+ if (_session == 0) {
+ return;
}
- nframes_t const start = _session->current_start_frame ();
- _x_scale = static_cast<double> (_width) / (_session->current_end_frame() - start);
- _y_scale = static_cast<double> (_height) / h;
-
- /* tallest a region should ever be in the summary, in pixels */
- int const tallest_region_pixels = 12;
+ /* compute start and end points for the summary */
+
+ nframes_t const session_length = _session->current_end_frame() - _session->current_start_frame ();
+ double const theoretical_start = _session->current_start_frame() - session_length * _overhang_fraction;
+ _start = theoretical_start > 0 ? theoretical_start : 0;
+ _end = _session->current_end_frame() + session_length * _overhang_fraction;
+
+ /* compute track height */
+ int N = 0;
+ for (TrackViewList::const_iterator i = _editor->track_views.begin(); i != _editor->track_views.end(); ++i) {
+ if (!(*i)->hidden()) {
+ ++N;
+ }
+ }
+
+ if (N == 0) {
+ _track_height = 16;
+ } else {
+ _track_height = (double) _height / N;
+ }
- if (max_height * _y_scale > tallest_region_pixels) {
- _y_scale = static_cast<double> (tallest_region_pixels) / max_height;
+ /* calculate x scale */
+ if (_end != _start) {
+ _x_scale = static_cast<double> (_width) / (_end - _start);
+ } else {
+ _x_scale = 1;
}
- /* render regions */
+ /* render tracks and regions */
double y = 0;
- for (PublicEditor::TrackViewList::const_iterator i = _editor->track_views.begin(); i != _editor->track_views.end(); ++i) {
+ for (TrackViewList::const_iterator i = _editor->track_views.begin(); i != _editor->track_views.end(); ++i) {
+
+ if ((*i)->hidden()) {
+ continue;
+ }
+
+ cairo_set_source_rgb (cr, 0.2, 0.2, 0.2);
+ cairo_set_line_width (cr, _track_height - 2);
+ cairo_move_to (cr, 0, y + _track_height / 2);
+ cairo_line_to (cr, _width, y + _track_height / 2);
+ cairo_stroke (cr);
+
StreamView* s = (*i)->view ();
if (s) {
- double const h = (*i)->effective_height () * _y_scale;
- cairo_set_line_width (cr, h);
+ cairo_set_line_width (cr, _track_height * 0.6);
- s->foreach_regionview (bind (
- mem_fun (*this, &EditorSummary::render_region),
+ s->foreach_regionview (sigc::bind (
+ sigc::mem_fun (*this, &EditorSummary::render_region),
cr,
- start,
- y + h / 2
+ y + _track_height / 2
));
- y += h;
}
+
+ y += _track_height;
}
+ /* start and end markers */
+
+ cairo_set_line_width (cr, 1);
+ cairo_set_source_rgb (cr, 1, 1, 0);
+
+ double const p = (_session->current_start_frame() - _start) * _x_scale;
+ cairo_move_to (cr, p, 0);
+ cairo_line_to (cr, p, _height);
+ cairo_stroke (cr);
+
+ double const q = (_session->current_end_frame() - _start) * _x_scale;
+ cairo_move_to (cr, q, 0);
+ cairo_line_to (cr, q, _height);
+ cairo_stroke (cr);
}
/** Render a region for the summary.
* @param r Region view.
* @param cr Cairo context.
- * @param start Frame offset that the summary starts at.
* @param y y coordinate to render at.
*/
void
-EditorSummary::render_region (RegionView* r, cairo_t* cr, nframes_t start, double y) const
+EditorSummary::render_region (RegionView* r, cairo_t* cr, double y) const
{
uint32_t const c = r->get_fill_color ();
cairo_set_source_rgb (cr, UINT_RGBA_R (c) / 255.0, UINT_RGBA_G (c) / 255.0, UINT_RGBA_B (c) / 255.0);
-
- cairo_move_to (cr, (r->region()->position() - start) * _x_scale, y);
- cairo_line_to (cr, ((r->region()->position() - start + r->region()->length())) * _x_scale, y);
- cairo_stroke (cr);
-}
-/** Set the summary so that the whole thing will be re-rendered next time it is required */
-void
-EditorSummary::set_dirty ()
-{
- ENSURE_GUI_THREAD (mem_fun (*this, &EditorSummary::set_dirty));
+ if (r->region()->position() > _start) {
+ cairo_move_to (cr, (r->region()->position() - _start) * _x_scale, y);
+ } else {
+ cairo_move_to (cr, 0, y);
+ }
- _regions_dirty = true;
- queue_draw ();
+ if ((r->region()->position() + r->region()->length()) > _start) {
+ cairo_line_to (cr, ((r->region()->position() - _start + r->region()->length())) * _x_scale, y);
+ } else {
+ cairo_line_to (cr, 0, y);
+ }
+
+ cairo_stroke (cr);
}
-/** Set the summary so that just the view boundary markers will be re-rendered */
+/** Set the summary so that just the overlays (viewbox, playhead etc.) will be re-rendered */
void
-EditorSummary::set_bounds_dirty ()
+EditorSummary::set_overlays_dirty ()
{
- ENSURE_GUI_THREAD (mem_fun (*this, &EditorSummary::set_bounds_dirty));
+ ENSURE_GUI_THREAD (*this, &EditorSummary::set_overlays_dirty)
queue_draw ();
}
{
/* Use a dummy, small width and the actual height that we want */
req->width = 64;
- req->height = 64;
+ req->height = 32;
}
-/** Handle a size allocation.
- * @param alloc GTK allocation.
- */
+
void
-EditorSummary::on_size_allocate (Gtk::Allocation& alloc)
+EditorSummary::centre_on_click (GdkEventButton* ev)
{
- Gtk::EventBox::on_size_allocate (alloc);
+ pair<double, double> xr;
+ pair<double, double> yr;
+ get_editor (&xr, &yr);
- _width = alloc.get_width ();
- _height = alloc.get_height ();
+ double const w = xr.second - xr.first;
- set_dirty ();
-}
+ xr.first = ev->x - w / 2;
+ xr.second = ev->x + w / 2;
-void
-EditorSummary::centre_on_click (GdkEventButton* ev)
-{
- nframes_t x = (ev->x / _x_scale) + _session->current_start_frame();
- nframes_t const xh = _editor->current_page_frames () / 2;
- if (x > xh) {
- x -= xh;
- } else {
- x = 0;
+ if (xr.first < 0) {
+ xr.first = 0;
+ xr.second = w;
+ } else if (xr.second > _width) {
+ xr.second = _width;
+ xr.first = _width - w;
}
-
- _editor->reset_x_origin (x);
-
- double y = ev->y / _y_scale;
- double const yh = _editor->canvas_height () / 2;
- if (y > yh) {
- y -= yh;
- } else {
- y = 0;
+
+ double ey = summary_y_to_editor (ev->y);
+ ey -= (_editor->canvas_height() - _editor->get_canvas_timebars_vsize ()) / 2;
+ if (ey < 0) {
+ ey = 0;
}
- _editor->reset_y_origin (y);
+ set_editor (xr, editor_y_to_summary (ey));
}
/** Handle a button press.
EditorSummary::on_button_press_event (GdkEventButton* ev)
{
if (ev->button == 1) {
-
+
pair<double, double> xr;
pair<double, double> yr;
- editor_view (&xr, &yr);
-
- if (xr.first <= ev->x && ev->x <= xr.second && yr.first <= ev->y && ev->y <= yr.second) {
-
- if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
-
- /* modifier-click inside the view rectangle: start a zoom drag */
- _zoom_position = NONE;
-
- double const x1 = xr.first + (xr.second - xr.first) * 0.33;
- double const x2 = xr.first + (xr.second - xr.first) * 0.67;
-
- if (ev->x < x1) {
- _zoom_position = LEFT;
- } else if (ev->x > x2) {
- _zoom_position = RIGHT;
- } else {
- _zoom_position = NONE;
- }
-
- if (_zoom_position != NONE) {
- _zoom_dragging = true;
- _mouse_x_start = ev->x;
- _width_start = xr.second - xr.first;
- _zoom_start = _editor->get_current_zoom ();
- _frames_start = _editor->leftmost_position ();
- _editor->_dragging_playhead = true;
- }
-
- } else {
-
- /* ordinary click inside the view rectangle: start a move drag */
-
- _move_dragging = true;
- _moved = false;
- _x_offset = ev->x - xr.first;
- _y_offset = ev->y - yr.first;
- _editor->_dragging_playhead = true;
+ get_editor (&xr, &yr);
+
+ _start_editor_x = xr;
+ _start_editor_y = yr;
+ _start_mouse_x = ev->x;
+ _start_mouse_y = ev->y;
+ _start_position = get_position (ev->x, ev->y);
+
+ if (_start_position != INSIDE && _start_position != BELOW_OR_ABOVE &&
+ _start_position != TO_LEFT_OR_RIGHT && _start_position != OTHERWISE_OUTSIDE
+ ) {
+
+ /* start a zoom drag */
+
+ _zoom_position = get_position (ev->x, ev->y);
+ _zoom_dragging = true;
+ _editor->_dragging_playhead = true;
+
+ } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::SecondaryModifier)) {
+
+ /* secondary-modifier-click: locate playhead */
+ if (_session) {
+ _session->request_locate (ev->x / _x_scale + _start);
}
-
- } else {
-
- /* click outside the view rectangle: centre the view around the mouse click */
+
+ } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
+
centre_on_click (ev);
+
+ } else {
+
+ /* start a move drag */
+
+ _move_dragging = true;
+ _moved = false;
+ _editor->_dragging_playhead = true;
}
}
return true;
}
+/** Fill in x and y with the editor's current viewable area in summary coordinates */
void
-EditorSummary::editor_view (pair<double, double>* x, pair<double, double>* y) const
+EditorSummary::get_editor (pair<double, double>* x, pair<double, double>* y) const
{
- x->first = (_editor->leftmost_position () - _session->current_start_frame ()) * _x_scale;
+ assert (x);
+ assert (y);
+
+ x->first = (_editor->leftmost_position () - _start) * _x_scale;
x->second = x->first + _editor->current_page_frames() * _x_scale;
- y->first = _editor->get_trackview_group_vertical_offset () * _y_scale;
- y->second = y->first + _editor->canvas_height () * _y_scale;
+ y->first = editor_y_to_summary (_editor->vertical_adjustment.get_value ());
+ y->second = editor_y_to_summary (_editor->vertical_adjustment.get_value () + _editor->canvas_height() - _editor->get_canvas_timebars_vsize());
+}
+
+/** Get an expression of the position of a point with respect to the view rectangle */
+EditorSummary::Position
+EditorSummary::get_position (double x, double y) const
+{
+ /* how close the mouse has to be to the edge of the view rectangle to be considered `on it',
+ in pixels */
+
+ int x_edge_size = (_view_rectangle_x.second - _view_rectangle_x.first) / 4;
+ x_edge_size = min (x_edge_size, 8);
+ x_edge_size = max (x_edge_size, 1);
+
+ int y_edge_size = (_view_rectangle_y.second - _view_rectangle_y.first) / 4;
+ y_edge_size = min (y_edge_size, 8);
+ y_edge_size = max (y_edge_size, 1);
+
+ bool const near_left = (std::abs (x - _view_rectangle_x.first) < x_edge_size);
+ bool const near_right = (std::abs (x - _view_rectangle_x.second) < x_edge_size);
+ bool const near_top = (std::abs (y - _view_rectangle_y.first) < y_edge_size);
+ bool const near_bottom = (std::abs (y - _view_rectangle_y.second) < y_edge_size);
+ bool const within_x = _view_rectangle_x.first < x && x < _view_rectangle_x.second;
+ bool const within_y = _view_rectangle_y.first < y && y < _view_rectangle_y.second;
+
+ if (near_left && near_top) {
+ return LEFT_TOP;
+ } else if (near_left && near_bottom) {
+ return LEFT_BOTTOM;
+ } else if (near_right && near_top) {
+ return RIGHT_TOP;
+ } else if (near_right && near_bottom) {
+ return RIGHT_BOTTOM;
+ } else if (near_left && within_y) {
+ return LEFT;
+ } else if (near_right && within_y) {
+ return RIGHT;
+ } else if (near_top && within_x) {
+ return TOP;
+ } else if (near_bottom && within_x) {
+ return BOTTOM;
+ } else if (within_x && within_y) {
+ return INSIDE;
+ } else if (within_x) {
+ return BELOW_OR_ABOVE;
+ } else if (within_y) {
+ return TO_LEFT_OR_RIGHT;
+ } else {
+ return OTHERWISE_OUTSIDE;
+ }
+}
+
+void
+EditorSummary::set_cursor (Position p)
+{
+ switch (p) {
+ case LEFT:
+ get_window()->set_cursor (*_editor->_cursors->resize_left);
+ break;
+ case LEFT_TOP:
+ get_window()->set_cursor (*_editor->_cursors->resize_top_left);
+ break;
+ case TOP:
+ get_window()->set_cursor (*_editor->_cursors->resize_top);
+ break;
+ case RIGHT_TOP:
+ get_window()->set_cursor (*_editor->_cursors->resize_top_right);
+ break;
+ case RIGHT:
+ get_window()->set_cursor (*_editor->_cursors->resize_right);
+ break;
+ case RIGHT_BOTTOM:
+ get_window()->set_cursor (*_editor->_cursors->resize_bottom_right);
+ break;
+ case BOTTOM:
+ get_window()->set_cursor (*_editor->_cursors->resize_bottom);
+ break;
+ case LEFT_BOTTOM:
+ get_window()->set_cursor (*_editor->_cursors->resize_bottom_left);
+ break;
+ case INSIDE:
+ get_window()->set_cursor (*_editor->_cursors->move);
+ break;
+ case TO_LEFT_OR_RIGHT:
+ get_window()->set_cursor (*_editor->_cursors->expand_left_right);
+ break;
+ case BELOW_OR_ABOVE:
+ get_window()->set_cursor (*_editor->_cursors->expand_up_down);
+ break;
+ default:
+ get_window()->set_cursor ();
+ break;
+ }
}
bool
EditorSummary::on_motion_notify_event (GdkEventMotion* ev)
{
+ pair<double, double> xr = _start_editor_x;
+ pair<double, double> yr = _start_editor_y;
+ double y = _start_editor_y.first;
+
if (_move_dragging) {
_moved = true;
- _editor->reset_x_origin (((ev->x - _x_offset) / _x_scale) + _session->current_start_frame ());
- _editor->reset_y_origin ((ev->y - _y_offset) / _y_scale);
- return true;
+
+ /* don't alter x if we clicked outside and above or below the viewbox */
+ if (_start_position == INSIDE || _start_position == TO_LEFT_OR_RIGHT || _start_position == OTHERWISE_OUTSIDE) {
+ xr.first += ev->x - _start_mouse_x;
+ xr.second += ev->x - _start_mouse_x;
+ }
+
+ /* don't alter y if we clicked outside and to the left or right of the viewbox */
+ if (_start_position == INSIDE || _start_position == BELOW_OR_ABOVE) {
+ y += ev->y - _start_mouse_y;
+ }
+
+ if (xr.first < 0) {
+ xr.second -= xr.first;
+ xr.first = 0;
+ }
+
+ if (y < 0) {
+ y = 0;
+ }
+
+ set_editor (xr, y);
+ set_cursor (_start_position);
} else if (_zoom_dragging) {
- double const dx = ev->x - _mouse_x_start;
+ double const dx = ev->x - _start_mouse_x;
+ double const dy = ev->y - _start_mouse_y;
- nframes64_t rx = _frames_start;
- double f = 1;
-
- switch (_zoom_position) {
- case LEFT:
- f = 1 - (dx / _width_start);
- rx += (dx / _x_scale);
- break;
- case RIGHT:
- f = 1 + (dx / _width_start);
- break;
- case NONE:
- break;
+ if (_zoom_position == LEFT || _zoom_position == LEFT_TOP || _zoom_position == LEFT_BOTTOM) {
+ xr.first += dx;
+ } else if (_zoom_position == RIGHT || _zoom_position == RIGHT_TOP || _zoom_position == RIGHT_BOTTOM) {
+ xr.second += dx;
}
- if (_editor->pending_visual_change.idle_handler_id < 0) {
-
- /* As a side-effect, the Editor's visual change idle handler processes
- pending GTK events. Hence this motion notify handler can be called
- in the middle of a visual change idle handler, and if this happens,
- the queue_visual_change calls below modify the variables that the
- idle handler is working with. This causes problems. Hence the
- check above. It ensures that we won't modify the pending visual change
- while a visual change idle handler is in progress. It's not perfect,
- as it also means that we won't change these variables if an idle handler
- is merely pending but not executing. But c'est la vie.
- */
-
- _editor->queue_visual_change (rx);
- _editor->queue_visual_change (_zoom_start * f);
+ if (_zoom_position == TOP || _zoom_position == LEFT_TOP || _zoom_position == RIGHT_TOP) {
+ yr.first += dy;
+ } else if (_zoom_position == BOTTOM || _zoom_position == LEFT_BOTTOM || _zoom_position == RIGHT_BOTTOM) {
+ yr.second += dy;
}
+
+ set_overlays_dirty ();
+ set_cursor (_zoom_position);
+ set_editor (xr, yr);
+
+ } else {
+
+ set_cursor (get_position (ev->x, ev->y));
+
}
-
+
return true;
}
bool
-EditorSummary::on_button_release_event (GdkEventButton* ev)
+EditorSummary::on_button_release_event (GdkEventButton*)
{
- if (_move_dragging && !_moved) {
- centre_on_click (ev);
- }
-
_move_dragging = false;
_zoom_dragging = false;
_editor->_dragging_playhead = false;
EditorSummary::on_scroll_event (GdkEventScroll* ev)
{
/* mouse wheel */
-
+
pair<double, double> xr;
pair<double, double> yr;
- editor_view (&xr, &yr);
-
+ get_editor (&xr, &yr);
+ double y = yr.first;
+
+ double amount = 8;
+
+ if (Keyboard::modifier_state_contains (ev->state, Keyboard::SecondaryModifier)) {
+ amount = 64;
+ } else if (Keyboard::modifier_state_contains (ev->state, Keyboard::TertiaryModifier)) {
+ amount = 1;
+ }
+
if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
-
- double x = xr.first;
-
+
+ /* primary-wheel == left-right scrolling */
+
if (ev->direction == GDK_SCROLL_UP) {
- x += 16;
- } else {
- x -= 16;
+ xr.first += amount;
+ xr.second += amount;
+ } else if (ev->direction == GDK_SCROLL_DOWN) {
+ xr.first -= amount;
+ xr.second -= amount;
}
-
- _editor->reset_x_origin (x / _x_scale);
-
+
} else {
+
+ if (ev->direction == GDK_SCROLL_DOWN) {
+ y += amount;
+ } else if (ev->direction == GDK_SCROLL_UP) {
+ y -= amount;
+ } else if (ev->direction == GDK_SCROLL_LEFT) {
+ xr.first -= amount;
+ xr.second -= amount;
+ } else if (ev->direction == GDK_SCROLL_RIGHT) {
+ xr.first += amount;
+ xr.second += amount;
+ }
+ }
+
+ set_editor (xr, y);
+ return true;
+}
+
+/** Set the editor to display a given x range and a y range with the top at a given position.
+ * The editor's x zoom is adjusted if necessary, but the y zoom is not changed.
+ * x and y parameters are specified in summary coordinates.
+ */
+void
+EditorSummary::set_editor (pair<double,double> const & x, double const y)
+{
+ if (_editor->pending_visual_change.idle_handler_id >= 0) {
+
+ /* As a side-effect, the Editor's visual change idle handler processes
+ pending GTK events. Hence this motion notify handler can be called
+ in the middle of a visual change idle handler, and if this happens,
+ the queue_visual_change calls below modify the variables that the
+ idle handler is working with. This causes problems. Hence this
+ check. It ensures that we won't modify the pending visual change
+ while a visual change idle handler is in progress. It's not perfect,
+ as it also means that we won't change these variables if an idle handler
+ is merely pending but not executing. But c'est la vie.
+ */
+
+ return;
+ }
+
+ set_editor_x (x);
+ set_editor_y (y);
+}
+
+/** Set the editor to display given x and y ranges. x zoom and track heights are
+ * adjusted if necessary.
+ * x and y parameters are specified in summary coordinates.
+ */
+void
+EditorSummary::set_editor (pair<double,double> const & x, pair<double, double> const & y)
+{
+ if (_editor->pending_visual_change.idle_handler_id >= 0) {
+ /* see comment in other set_editor () */
+ return;
+ }
+
+ set_editor_x (x);
+ set_editor_y (y);
+}
+
+/** Set the x range visible in the editor.
+ * Caller should have checked that Editor::pending_visual_change.idle_handler_id is < 0
+ * @param x new x range in summary coordinates.
+ */
+void
+EditorSummary::set_editor_x (pair<double, double> const & x)
+{
+ _editor->reset_x_origin (x.first / _x_scale + _start);
+
+ double const nx = (
+ ((x.second - x.first) / _x_scale) /
+ _editor->frame_to_unit (_editor->current_page_frames())
+ );
+
+ if (nx != _editor->get_current_zoom ()) {
+ _editor->reset_zoom (nx);
+ }
+}
+
+/** Set the top of the y range visible in the editor.
+ * Caller should have checked that Editor::pending_visual_change.idle_handler_id is < 0
+ * @param y new editor top in summary coodinates.
+ */
+void
+EditorSummary::set_editor_y (double const y)
+{
+ double y1 = summary_y_to_editor (y);
+ double const eh = _editor->canvas_height() - _editor->get_canvas_timebars_vsize ();
+ double y2 = y1 + eh;
+
+ double const full_editor_height = _editor->full_canvas_height - _editor->get_canvas_timebars_vsize();
+
+ if (y2 > full_editor_height) {
+ y1 -= y2 - full_editor_height;
+ }
+
+ if (y1 < 0) {
+ y1 = 0;
+ }
+
+ _editor->reset_y_origin (y1);
+}
+
+/** Set the y range visible in the editor. This is achieved by scaling track heights,
+ * if necessary.
+ * Caller should have checked that Editor::pending_visual_change.idle_handler_id is < 0
+ * @param y new editor range in summary coodinates.
+ */
+void
+EditorSummary::set_editor_y (pair<double, double> const & y)
+{
+ /* Compute current height of tracks between y.first and y.second. We add up
+ the total height into `total_height' and the height of complete tracks into
+ `scale height'.
+ */
+ pair<double, double> yc = y;
+ double total_height = 0;
+ double scale_height = 0;
+
+ _editor->_routes->suspend_redisplay ();
+
+ for (TrackViewList::const_iterator i = _editor->track_views.begin(); i != _editor->track_views.end(); ++i) {
+
+ if ((*i)->hidden()) {
+ continue;
+ }
- double y = yr.first;
+ double const h = (*i)->effective_height ();
+
+ if (yc.first >= 0 && yc.first < _track_height) {
+ total_height += (_track_height - yc.first) * h / _track_height;
+ } else if (yc.first < 0 && yc.second > _track_height) {
+ total_height += h;
+ scale_height += h;
+ } else if (yc.second >= 0 && yc.second < _track_height) {
+ total_height += yc.second * h / _track_height;
+ break;
+ }
+
+ yc.first -= _track_height;
+ yc.second -= _track_height;
+ }
+
+ /* hence required scale factor of the complete tracks to fit the required y range */
+ double const scale = ((_editor->canvas_height() - _editor->get_canvas_timebars_vsize()) - (total_height - scale_height)) / scale_height;
+
+ yc = y;
+
+ /* Scale complete tracks within the range to make it fit */
+
+ for (TrackViewList::const_iterator i = _editor->track_views.begin(); i != _editor->track_views.end(); ++i) {
+
+ if ((*i)->hidden()) {
+ continue;
+ }
+
+ if (yc.first < 0 && yc.second > _track_height) {
+ (*i)->set_height (max (TimeAxisView::preset_height (HeightSmall), (uint32_t) ((*i)->effective_height() * scale)));
+ }
+
+ yc.first -= _track_height;
+ yc.second -= _track_height;
+ }
+
+ _editor->_routes->resume_redisplay ();
+
+ set_editor_y (y.first);
+}
+
+void
+EditorSummary::playhead_position_changed (framepos_t p)
+{
+ if (_session && int (p * _x_scale) != int (_last_playhead)) {
+ set_overlays_dirty ();
+ }
+}
+
+double
+EditorSummary::summary_y_to_editor (double y) const
+{
+ double ey = 0;
+ for (TrackViewList::const_iterator i = _editor->track_views.begin (); i != _editor->track_views.end(); ++i) {
- if (ev->direction == GDK_SCROLL_DOWN) {
- y += 16;
- } else {
- y -= 16;
+ if ((*i)->hidden()) {
+ continue;
}
+ double const h = (*i)->effective_height ();
+ if (y < _track_height) {
+ /* in this track */
+ return ey + y * h / _track_height;
+ }
+
+ ey += h;
+ y -= _track_height;
+ }
+
+ return ey;
+}
+
+double
+EditorSummary::editor_y_to_summary (double y) const
+{
+ double sy = 0;
+ for (TrackViewList::const_iterator i = _editor->track_views.begin (); i != _editor->track_views.end(); ++i) {
- _editor->reset_y_origin (y / _y_scale);
+ if ((*i)->hidden()) {
+ continue;
+ }
+
+ double const h = (*i)->effective_height ();
+ if (y < h) {
+ /* in this track */
+ return sy + y * _track_height / h;
+ }
+
+ sy += _track_height;
+ y -= h;
}
-
- return true;
+
+ return sy;
}
projects / ardour.git / blobdiff