1079 lines
29 KiB
C++
1079 lines
29 KiB
C++
/*
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Copyright (C) 2009 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include "ardour/session.h"
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#include "canvas/debug.h"
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#include "time_axis_view.h"
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#include "streamview.h"
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#include "editor_summary.h"
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#include "gui_thread.h"
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#include "editor.h"
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#include "region_view.h"
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#include "rgb_macros.h"
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#include "keyboard.h"
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#include "editor_routes.h"
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#include "editor_cursors.h"
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#include "mouse_cursors.h"
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#include "route_time_axis.h"
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#include "ui_config.h"
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using namespace std;
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using namespace ARDOUR;
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using Gtkmm2ext::Keyboard;
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/** Construct an EditorSummary.
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* @param e Editor to represent.
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*/
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EditorSummary::EditorSummary (Editor* e)
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: EditorComponent (e),
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_start (0),
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_end (1),
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_overhang_fraction (0.1),
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_x_scale (1),
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_track_height (16),
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_last_playhead (-1),
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_move_dragging (false),
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_moved (false),
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_view_rectangle_x (0, 0),
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_view_rectangle_y (0, 0),
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_zoom_dragging (false),
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_old_follow_playhead (false),
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_image (0),
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_background_dirty (true)
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{
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add_events (Gdk::POINTER_MOTION_MASK|Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK|Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK);
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set_flags (get_flags() | Gtk::CAN_FOCUS);
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UIConfiguration::instance().ParameterChanged.connect (sigc::mem_fun (*this, &EditorSummary::parameter_changed));
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}
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EditorSummary::~EditorSummary ()
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{
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cairo_surface_destroy (_image);
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}
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void
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EditorSummary::parameter_changed (string p)
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{
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if (p == "color-regions-using-track-color") {
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set_background_dirty ();
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}
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}
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/** Handle a size allocation.
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* @param alloc GTK allocation.
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*/
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void
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EditorSummary::on_size_allocate (Gtk::Allocation& alloc)
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{
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CairoWidget::on_size_allocate (alloc);
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set_background_dirty ();
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}
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/** Connect to a session.
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* @param s Session.
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*/
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void
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EditorSummary::set_session (Session* s)
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{
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SessionHandlePtr::set_session (s);
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set_dirty ();
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/* Note: the EditorSummary already finds out about new regions from Editor::region_view_added
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* (which attaches to StreamView::RegionViewAdded), and cut regions by the RegionPropertyChanged
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* emitted when a cut region is added to the `cutlist' playlist.
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*/
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if (_session) {
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Region::RegionPropertyChanged.connect (region_property_connection, invalidator (*this), boost::bind (&EditorSummary::set_background_dirty, this), gui_context());
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Route::RemoteControlIDChange.connect (route_ctrl_id_connection, invalidator (*this), boost::bind (&EditorSummary::set_background_dirty, this), gui_context());
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_editor->playhead_cursor->PositionChanged.connect (position_connection, invalidator (*this), boost::bind (&EditorSummary::playhead_position_changed, this, _1), gui_context());
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_session->StartTimeChanged.connect (_session_connections, invalidator (*this), boost::bind (&EditorSummary::set_background_dirty, this), gui_context());
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_session->EndTimeChanged.connect (_session_connections, invalidator (*this), boost::bind (&EditorSummary::set_background_dirty, this), gui_context());
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_editor->selection->RegionsChanged.connect (sigc::mem_fun(*this, &EditorSummary::set_background_dirty));
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}
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}
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void
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EditorSummary::render_background_image ()
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{
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cairo_surface_destroy (_image); // passing NULL is safe
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_image = cairo_image_surface_create (CAIRO_FORMAT_RGB24, get_width (), get_height ());
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cairo_t* cr = cairo_create (_image);
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/* background (really just the dividing lines between tracks */
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cairo_set_source_rgb (cr, 0, 0, 0);
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cairo_rectangle (cr, 0, 0, get_width(), get_height());
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cairo_fill (cr);
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/* compute start and end points for the summary */
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framecnt_t const session_length = _session->current_end_frame() - _session->current_start_frame ();
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double const theoretical_start = _session->current_start_frame() - session_length * _overhang_fraction;
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_start = theoretical_start > 0 ? theoretical_start : 0;
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_end = _session->current_end_frame() + session_length * _overhang_fraction;
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/* compute track height */
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int N = 0;
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for (TrackViewList::const_iterator i = _editor->track_views.begin(); i != _editor->track_views.end(); ++i) {
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if (!(*i)->hidden()) {
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++N;
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}
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}
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if (N == 0) {
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_track_height = 16;
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} else {
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_track_height = (double) get_height() / N;
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}
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/* calculate x scale */
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if (_end != _start) {
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_x_scale = static_cast<double> (get_width()) / (_end - _start);
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} else {
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_x_scale = 1;
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}
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/* render tracks and regions */
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double y = 0;
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for (TrackViewList::const_iterator i = _editor->track_views.begin(); i != _editor->track_views.end(); ++i) {
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if ((*i)->hidden()) {
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continue;
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}
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/* paint a non-bg colored strip to represent the track itself */
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cairo_set_source_rgb (cr, 0.2, 0.2, 0.2);
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cairo_set_line_width (cr, _track_height - 1);
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cairo_move_to (cr, 0, y + _track_height / 2);
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cairo_line_to (cr, get_width(), y + _track_height / 2);
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cairo_stroke (cr);
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StreamView* s = (*i)->view ();
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if (s) {
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cairo_set_line_width (cr, _track_height * 0.8);
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s->foreach_regionview (sigc::bind (
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sigc::mem_fun (*this, &EditorSummary::render_region),
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cr,
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y + _track_height / 2
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));
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}
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y += _track_height;
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}
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/* start and end markers */
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cairo_set_line_width (cr, 1);
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cairo_set_source_rgb (cr, 1, 1, 0);
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const double p = (_session->current_start_frame() - _start) * _x_scale;
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cairo_move_to (cr, p, 0);
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cairo_line_to (cr, p, get_height());
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double const q = (_session->current_end_frame() - _start) * _x_scale;
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cairo_move_to (cr, q, 0);
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cairo_line_to (cr, q, get_height());
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cairo_stroke (cr);
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cairo_destroy (cr);
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}
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/** Render the required regions to a cairo context.
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* @param cr Context.
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*/
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void
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EditorSummary::render (cairo_t* cr, cairo_rectangle_t*)
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{
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if (_session == 0) {
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return;
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}
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if (!_image || _background_dirty) {
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render_background_image ();
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_background_dirty = false;
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}
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cairo_push_group (cr);
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/* Fill with the background image */
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cairo_rectangle (cr, 0, 0, get_width(), get_height());
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cairo_set_source_surface (cr, _image, 0, 0);
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cairo_fill (cr);
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/* Render the view rectangle. If there is an editor visual pending, don't update
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the view rectangle now --- wait until the expose event that we'll get after
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the visual change. This prevents a flicker.
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*/
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if (_editor->pending_visual_change.idle_handler_id < 0) {
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get_editor (&_view_rectangle_x, &_view_rectangle_y);
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}
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int32_t width = _view_rectangle_x.second - _view_rectangle_x.first;
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int32_t height = _view_rectangle_y.second - _view_rectangle_y.first;
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cairo_rectangle (cr, _view_rectangle_x.first, _view_rectangle_y.first, width, height);
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cairo_set_source_rgba (cr, 1, 1, 1, 0.1);
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cairo_fill_preserve (cr);
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cairo_set_line_width (cr, 1);
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cairo_set_source_rgba (cr, 1, 1, 1, 0.4);
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cairo_stroke (cr);
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/* Playhead */
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cairo_set_line_width (cr, 1);
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/* XXX: colour should be set from configuration file */
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cairo_set_source_rgba (cr, 1, 0, 0, 1);
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const double ph= playhead_frame_to_position (_editor->playhead_cursor->current_frame());
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cairo_move_to (cr, ph, 0);
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cairo_line_to (cr, ph, get_height());
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cairo_stroke (cr);
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cairo_pop_group_to_source (cr);
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cairo_paint (cr);
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_last_playhead = ph;
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}
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/** Render a region for the summary.
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* @param r Region view.
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* @param cr Cairo context.
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* @param y y coordinate to render at.
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*/
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void
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EditorSummary::render_region (RegionView* r, cairo_t* cr, double y) const
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{
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uint32_t const c = r->get_fill_color ();
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cairo_set_source_rgb (cr, UINT_RGBA_R (c) / 255.0, UINT_RGBA_G (c) / 255.0, UINT_RGBA_B (c) / 255.0);
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if (r->region()->position() > _start) {
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cairo_move_to (cr, (r->region()->position() - _start) * _x_scale, y);
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} else {
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cairo_move_to (cr, 0, y);
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}
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if ((r->region()->position() + r->region()->length()) > _start) {
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cairo_line_to (cr, ((r->region()->position() - _start + r->region()->length())) * _x_scale, y);
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} else {
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cairo_line_to (cr, 0, y);
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}
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cairo_stroke (cr);
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}
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void
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EditorSummary::set_background_dirty ()
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{
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_background_dirty = true;
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set_dirty ();
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}
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/** Set the summary so that just the overlays (viewbox, playhead etc.) will be re-rendered */
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void
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EditorSummary::set_overlays_dirty ()
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{
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ENSURE_GUI_THREAD (*this, &EditorSummary::set_overlays_dirty);
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queue_draw ();
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}
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/** Set the summary so that just the overlays (viewbox, playhead etc.) in a given area will be re-rendered */
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void
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EditorSummary::set_overlays_dirty (int x, int y, int w, int h)
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{
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ENSURE_GUI_THREAD (*this, &EditorSummary::set_overlays_dirty);
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queue_draw_area (x, y, w, h);
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}
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/** Handle a size request.
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* @param req GTK requisition
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*/
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void
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EditorSummary::on_size_request (Gtk::Requisition *req)
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{
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/* Use a dummy, small width and the actual height that we want */
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req->width = 64;
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req->height = 32;
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}
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void
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EditorSummary::centre_on_click (GdkEventButton* ev)
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{
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pair<double, double> xr;
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pair<double, double> yr;
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get_editor (&xr, &yr);
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double const w = xr.second - xr.first;
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double ex = ev->x - w / 2;
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if (ex < 0) {
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ex = 0;
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} else if ((ex + w) > get_width()) {
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ex = get_width() - w;
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}
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double const h = yr.second - yr.first;
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double ey = ev->y - h / 2;
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if (ey < 0) {
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ey = 0;
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} else if ((ey + h) > get_height()) {
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ey = get_height() - h;
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}
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set_editor (ex, ey);
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}
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bool
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EditorSummary::on_enter_notify_event (GdkEventCrossing*)
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{
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grab_focus ();
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Keyboard::magic_widget_grab_focus ();
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return false;
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}
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bool
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EditorSummary::on_leave_notify_event (GdkEventCrossing*)
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{
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/* there are no inferior/child windows, so any leave event means that
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we're gone.
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*/
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Keyboard::magic_widget_drop_focus ();
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return false;
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}
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bool
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EditorSummary::on_key_press_event (GdkEventKey* key)
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{
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gint x, y;
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GtkAccelKey set_playhead_accel;
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if (gtk_accel_map_lookup_entry ("<Actions>/Editor/set-playhead", &set_playhead_accel)) {
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if (key->keyval == set_playhead_accel.accel_key && (int) key->state == set_playhead_accel.accel_mods) {
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if (_session) {
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get_pointer (x, y);
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_session->request_locate (_start + (framepos_t) x / _x_scale, _session->transport_rolling());
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return true;
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}
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}
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}
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return false;
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}
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bool
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EditorSummary::on_key_release_event (GdkEventKey* key)
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{
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GtkAccelKey set_playhead_accel;
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if (gtk_accel_map_lookup_entry ("<Actions>/Editor/set-playhead", &set_playhead_accel)) {
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if (key->keyval == set_playhead_accel.accel_key && (int) key->state == set_playhead_accel.accel_mods) {
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return true;
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}
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}
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return false;
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}
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/** Handle a button press.
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* @param ev GTK event.
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*/
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bool
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EditorSummary::on_button_press_event (GdkEventButton* ev)
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{
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_old_follow_playhead = _editor->follow_playhead ();
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if (ev->button == 1) {
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pair<double, double> xr;
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pair<double, double> yr;
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get_editor (&xr, &yr);
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_start_editor_x = xr;
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_start_editor_y = yr;
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_start_mouse_x = ev->x;
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_start_mouse_y = ev->y;
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_start_position = get_position (ev->x, ev->y);
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if (_start_position != INSIDE && _start_position != BELOW_OR_ABOVE &&
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_start_position != TO_LEFT_OR_RIGHT && _start_position != OTHERWISE_OUTSIDE
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) {
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/* start a zoom drag */
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_zoom_position = get_position (ev->x, ev->y);
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_zoom_dragging = true;
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_editor->_dragging_playhead = true;
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_editor->set_follow_playhead (false);
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if (suspending_editor_updates ()) {
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get_editor (&_pending_editor_x, &_pending_editor_y);
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_pending_editor_changed = false;
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}
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} else if (Keyboard::modifier_state_equals (ev->state, Keyboard::SecondaryModifier)) {
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/* secondary-modifier-click: locate playhead */
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if (_session) {
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_session->request_locate (ev->x / _x_scale + _start);
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}
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} else if (Keyboard::modifier_state_equals (ev->state, Keyboard::TertiaryModifier)) {
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centre_on_click (ev);
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} else {
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/* start a move drag */
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/* get the editor's state in case we are suspending updates */
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get_editor (&_pending_editor_x, &_pending_editor_y);
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_pending_editor_changed = false;
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_move_dragging = true;
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_moved = false;
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_editor->_dragging_playhead = true;
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_editor->set_follow_playhead (false);
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ArdourCanvas::checkpoint ("sum", "------------------ summary move drag starts.\n");
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}
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}
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return true;
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}
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/** @return true if we are currently suspending updates to the editor's viewport,
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* which we do if configured to do so, and if in a drag of some kind.
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*/
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bool
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EditorSummary::suspending_editor_updates () const
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{
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return (!UIConfiguration::instance().get_update_editor_during_summary_drag () && (_zoom_dragging || _move_dragging));
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}
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/** Fill in x and y with the editor's current viewable area in summary coordinates */
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void
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EditorSummary::get_editor (pair<double, double>* x, pair<double, double>* y) const
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{
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assert (x);
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assert (y);
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if (suspending_editor_updates ()) {
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/* We are dragging, and configured not to update the editor window during drags,
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so just return where the editor will be when the drag finishes.
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*/
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*x = _pending_editor_x;
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*y = _pending_editor_y;
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} else {
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/* Otherwise query the editor for its actual position */
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x->first = (_editor->leftmost_sample () - _start) * _x_scale;
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x->second = x->first + _editor->current_page_samples() * _x_scale;
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y->first = editor_y_to_summary (_editor->vertical_adjustment.get_value ());
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y->second = editor_y_to_summary (_editor->vertical_adjustment.get_value () + _editor->visible_canvas_height() - _editor->get_trackview_group()->canvas_origin().y);
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}
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}
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/** Get an expression of the position of a point with respect to the view rectangle */
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EditorSummary::Position
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EditorSummary::get_position (double x, double y) const
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{
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/* how close the mouse has to be to the edge of the view rectangle to be considered `on it',
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in pixels */
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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 x = _start_editor_x.first;
|
|
double y = _start_editor_y.first;
|
|
|
|
if (_move_dragging) {
|
|
|
|
_moved = 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) {
|
|
x += 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 (x < 0) {
|
|
x = 0;
|
|
}
|
|
|
|
if (y < 0) {
|
|
y = 0;
|
|
}
|
|
|
|
set_editor (x, y);
|
|
// set_cursor (_start_position);
|
|
|
|
} else if (_zoom_dragging) {
|
|
|
|
double const dx = ev->x - _start_mouse_x;
|
|
double const dy = ev->y - _start_mouse_y;
|
|
|
|
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;
|
|
} else {
|
|
xr.first = -1; /* do not change */
|
|
}
|
|
|
|
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;
|
|
} else {
|
|
yr.first = -1; /* do not change y */
|
|
}
|
|
|
|
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*)
|
|
{
|
|
bool const was_suspended = suspending_editor_updates ();
|
|
|
|
_move_dragging = false;
|
|
_zoom_dragging = false;
|
|
_editor->_dragging_playhead = false;
|
|
_editor->set_follow_playhead (_old_follow_playhead, false);
|
|
|
|
if (was_suspended && _pending_editor_changed) {
|
|
set_editor (_pending_editor_x, _pending_editor_y);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
EditorSummary::on_scroll_event (GdkEventScroll* ev)
|
|
{
|
|
/* mouse wheel */
|
|
|
|
pair<double, double> xr;
|
|
pair<double, double> yr;
|
|
get_editor (&xr, &yr);
|
|
double x = xr.first;
|
|
double y = yr.first;
|
|
|
|
switch (ev->direction) {
|
|
case GDK_SCROLL_UP:
|
|
if (Keyboard::modifier_state_equals (ev->state, Keyboard::ScrollHorizontalModifier)) {
|
|
x -= 64;
|
|
} else if (Keyboard::modifier_state_equals (ev->state, Keyboard::ScrollZoomHorizontalModifier)) {
|
|
_editor->temporal_zoom_step (false);
|
|
} else if (Keyboard::modifier_state_equals (ev->state, Keyboard::ScrollZoomVerticalModifier)) {
|
|
yr.first += 4;
|
|
yr.second -= 4;
|
|
set_editor (xr, yr);
|
|
return true;
|
|
} else {
|
|
y -= 8;
|
|
}
|
|
break;
|
|
case GDK_SCROLL_DOWN:
|
|
if (Keyboard::modifier_state_equals (ev->state, Keyboard::ScrollHorizontalModifier)) {
|
|
x += 64;
|
|
} else if (Keyboard::modifier_state_equals (ev->state, Keyboard::ScrollZoomHorizontalModifier)) {
|
|
_editor->temporal_zoom_step (true);
|
|
} else if (Keyboard::modifier_state_equals (ev->state, Keyboard::ScrollZoomVerticalModifier)) {
|
|
yr.first -= 4;
|
|
yr.second += 4;
|
|
set_editor (xr, yr);
|
|
return true;
|
|
} else {
|
|
y += 8;
|
|
}
|
|
break;
|
|
case GDK_SCROLL_LEFT:
|
|
if (Keyboard::modifier_state_contains (ev->state, Keyboard::SecondaryModifier)) {
|
|
x -= 64;
|
|
} else if (Keyboard::modifier_state_contains (ev->state, Keyboard::TertiaryModifier)) {
|
|
x -= 1;
|
|
} else {
|
|
x -= 8;
|
|
}
|
|
break;
|
|
case GDK_SCROLL_RIGHT:
|
|
if (Keyboard::modifier_state_contains (ev->state, Keyboard::SecondaryModifier)) {
|
|
x += 64;
|
|
} else if (Keyboard::modifier_state_contains (ev->state, Keyboard::TertiaryModifier)) {
|
|
x += 1;
|
|
} else {
|
|
x += 8;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
set_editor (x, y);
|
|
return true;
|
|
}
|
|
|
|
/** Set the editor to display a x range with the left at a given position
|
|
* and a y range with the top at a given position.
|
|
* x and y parameters are specified in summary coordinates.
|
|
* Zoom is not changed in either direction.
|
|
*/
|
|
void
|
|
EditorSummary::set_editor (double const x, double const y)
|
|
{
|
|
if (_editor->pending_visual_change.idle_handler_id >= 0 && _editor->pending_visual_change.being_handled == true) {
|
|
|
|
/* 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 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) {
|
|
/* see comment in other set_editor () */
|
|
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;
|
|
}
|
|
|
|
if (x.first >= 0) {
|
|
set_editor_x (x);
|
|
}
|
|
if (y.first >= 0) {
|
|
set_editor_y (y);
|
|
}
|
|
}
|
|
|
|
/** Set the left of 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 left position in summary coordinates.
|
|
*/
|
|
void
|
|
EditorSummary::set_editor_x (double x)
|
|
{
|
|
if (x < 0) {
|
|
x = 0;
|
|
}
|
|
|
|
if (suspending_editor_updates ()) {
|
|
double const w = _pending_editor_x.second - _pending_editor_x.first;
|
|
_pending_editor_x.first = x;
|
|
_pending_editor_x.second = x + w;
|
|
_pending_editor_changed = true;
|
|
set_dirty ();
|
|
} else {
|
|
_editor->reset_x_origin (x / _x_scale + _start);
|
|
}
|
|
}
|
|
|
|
/** 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> x)
|
|
{
|
|
if (x.first < 0) {
|
|
x.first = 0;
|
|
}
|
|
|
|
if (x.second < 0) {
|
|
x.second = x.first + 1;
|
|
}
|
|
|
|
if (suspending_editor_updates ()) {
|
|
_pending_editor_x = x;
|
|
_pending_editor_changed = true;
|
|
set_dirty ();
|
|
} else {
|
|
_editor->reset_x_origin (x.first / _x_scale + _start);
|
|
|
|
double const nx = (
|
|
((x.second - x.first) / _x_scale) /
|
|
_editor->sample_to_pixel (_editor->current_page_samples())
|
|
);
|
|
|
|
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->visible_canvas_height() - _editor->get_trackview_group()->canvas_origin().y;
|
|
double y2 = y1 + eh;
|
|
|
|
double const full_editor_height = _editor->_full_canvas_height;
|
|
|
|
if (y2 > full_editor_height) {
|
|
y1 -= y2 - full_editor_height;
|
|
}
|
|
|
|
if (y1 < 0) {
|
|
y1 = 0;
|
|
}
|
|
|
|
if (suspending_editor_updates ()) {
|
|
double const h = _pending_editor_y.second - _pending_editor_y.first;
|
|
_pending_editor_y.first = y;
|
|
_pending_editor_y.second = y + h;
|
|
_pending_editor_changed = true;
|
|
set_dirty ();
|
|
} else {
|
|
_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)
|
|
{
|
|
if (suspending_editor_updates ()) {
|
|
_pending_editor_y = y;
|
|
_pending_editor_changed = true;
|
|
set_dirty ();
|
|
return;
|
|
}
|
|
|
|
/* 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'.
|
|
*/
|
|
|
|
/* Copy of target range for use below */
|
|
pair<double, double> yc = y;
|
|
/* Total height of all tracks */
|
|
double total_height = 0;
|
|
/* Height of any parts of tracks that aren't fully in the desired range */
|
|
double partial_height = 0;
|
|
/* Height of any tracks that are fully in the desired range */
|
|
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 const h = (*i)->effective_height ();
|
|
total_height += h;
|
|
|
|
if (yc.first > 0 && yc.first < _track_height) {
|
|
partial_height += (_track_height - yc.first) * h / _track_height;
|
|
} else if (yc.first <= 0 && yc.second >= _track_height) {
|
|
scale_height += h;
|
|
} else if (yc.second > 0 && yc.second < _track_height) {
|
|
partial_height += yc.second * h / _track_height;
|
|
break;
|
|
}
|
|
|
|
yc.first -= _track_height;
|
|
yc.second -= _track_height;
|
|
}
|
|
|
|
/* Height that we will use for scaling; use the whole editor height unless there are not
|
|
enough tracks to fill it.
|
|
*/
|
|
double const ch = min (total_height, (_editor->visible_canvas_height() - _editor->get_trackview_group()->canvas_origin().y));
|
|
|
|
/* hence required scale factor of the complete tracks to fit the required y range;
|
|
the amount of space they should take up divided by the amount they currently take up.
|
|
*/
|
|
double const scale = (ch - partial_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)), TimeAxisView::TotalHeight);
|
|
}
|
|
|
|
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)
|
|
{
|
|
int const o = int (_last_playhead);
|
|
int const n = int (playhead_frame_to_position (p));
|
|
if (_session && o != n) {
|
|
int a = max(2, min (o, n));
|
|
int b = max (o, n);
|
|
set_overlays_dirty (a - 2, 0, b + 2, get_height ());
|
|
}
|
|
}
|
|
|
|
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 ((*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) {
|
|
|
|
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 sy;
|
|
}
|
|
|
|
void
|
|
EditorSummary::routes_added (list<RouteTimeAxisView*> const & r)
|
|
{
|
|
for (list<RouteTimeAxisView*>::const_iterator i = r.begin(); i != r.end(); ++i) {
|
|
/* Connect to gui_changed() on the route so that we know when their colour has changed */
|
|
(*i)->route()->gui_changed.connect (*this, invalidator (*this), boost::bind (&EditorSummary::route_gui_changed, this, _1), gui_context ());
|
|
boost::shared_ptr<Track> tr = boost::dynamic_pointer_cast<Track> ((*i)->route ());
|
|
if (tr) {
|
|
tr->PlaylistChanged.connect (*this, invalidator (*this), boost::bind (&EditorSummary::set_background_dirty, this), gui_context ());
|
|
}
|
|
}
|
|
|
|
set_background_dirty ();
|
|
}
|
|
|
|
void
|
|
EditorSummary::route_gui_changed (string c)
|
|
{
|
|
if (c == "color") {
|
|
set_background_dirty ();
|
|
}
|
|
}
|
|
|
|
double
|
|
EditorSummary::playhead_frame_to_position (framepos_t t) const
|
|
{
|
|
return (t - _start) * _x_scale;
|
|
}
|
|
|
|
framepos_t
|
|
EditorSummary::position_to_playhead_frame_to_position (double pos) const
|
|
{
|
|
return _start + (pos * _x_scale);
|
|
}
|