221 lines
4.6 KiB
C++
221 lines
4.6 KiB
C++
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#include "ardour/session.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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using namespace std;
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using namespace sigc;
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using namespace ARDOUR;
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EditorSummary::EditorSummary (Editor* e)
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: _editor (e),
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_session (0),
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_pixmap (0),
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_regions_dirty (true),
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_width (512),
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_height (64),
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_pixels_per_frame (1)
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{
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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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_session = s;
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Region::RegionPropertyChanged.connect (sigc::hide (mem_fun (*this, &EditorSummary::set_dirty)));
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_session->RegionRemoved.connect (sigc::hide (mem_fun (*this, &EditorSummary::set_dirty)));
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_session->EndTimeChanged.connect (mem_fun (*this, &EditorSummary::set_dirty));
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_session->StartTimeChanged.connect (mem_fun (*this, &EditorSummary::set_dirty));
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set_dirty ();
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}
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EditorSummary::~EditorSummary ()
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{
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if (_pixmap) {
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gdk_pixmap_unref (_pixmap);
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}
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}
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bool
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EditorSummary::on_expose_event (GdkEventExpose* event)
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{
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Gdk::Rectangle const exposure (
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event->area.x, event->area.y, event->area.width, event->area.height
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);
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Gdk::Rectangle r = exposure;
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Gdk::Rectangle content (0, 0, _width, _height);
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bool intersects;
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r.intersect (content, intersects);
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if (intersects) {
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GdkPixmap* p = get_pixmap (get_window()->gobj ());
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gdk_draw_drawable (
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get_window()->gobj(),
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get_style()->get_fg_gc (Gtk::STATE_NORMAL)->gobj(),
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p,
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r.get_x(),
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r.get_y(),
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r.get_x(),
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r.get_y(),
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r.get_width(),
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r.get_height()
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);
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}
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cairo_t* cr = gdk_cairo_create (get_window()->gobj());
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cairo_set_source_rgb (cr, 0, 1, 0);
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cairo_set_line_width (cr, 2);
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double const s = (_editor->leftmost_position () - _session->current_start_frame ()) * _pixels_per_frame;
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cairo_move_to (cr, s, 0);
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cairo_line_to (cr, s, _height);
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cairo_stroke (cr);
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double const e = s + _editor->current_page_frames() * _pixels_per_frame;
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cairo_move_to (cr, e, 0);
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cairo_line_to (cr, e, _height);
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cairo_stroke (cr);
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cairo_destroy (cr);
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return true;
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}
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GdkPixmap *
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EditorSummary::get_pixmap (GdkDrawable* drawable)
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{
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if (_regions_dirty) {
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if (_pixmap) {
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gdk_pixmap_unref (_pixmap);
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}
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_pixmap = gdk_pixmap_new (drawable, _width, _height, -1);
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cairo_t* cr = gdk_cairo_create (_pixmap);
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render (cr);
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cairo_destroy (cr);
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_regions_dirty = false;
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}
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return _pixmap;
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}
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void
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EditorSummary::render (cairo_t* cr)
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{
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if (_session == 0) {
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return;
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}
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cairo_set_source_rgb (cr, 0, 0, 0);
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cairo_rectangle (cr, 0, 0, _width, _height);
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cairo_fill (cr);
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int N = 0;
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for (PublicEditor::TrackViewList::const_iterator i = _editor->track_views.begin(); i != _editor->track_views.end(); ++i) {
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if ((*i)->view()) {
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++N;
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}
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}
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nframes_t const start = _session->current_start_frame ();
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_pixels_per_frame = static_cast<double> (_width) / (_session->current_end_frame() - start);
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double const track_height = static_cast<double> (_height) / N;
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cairo_set_line_width (cr, track_height);
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int n = 0;
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for (PublicEditor::TrackViewList::const_iterator i = _editor->track_views.begin(); i != _editor->track_views.end(); ++i) {
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StreamView* s = (*i)->view ();
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if (s) {
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double const v = ((n % 2) == 0) ? 1 : 0.5;
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cairo_set_source_rgb (cr, v, v, v);
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s->foreach_regionview (bind (
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mem_fun (*this, &EditorSummary::render_region),
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cr,
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start,
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track_height * (n + 0.5)
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));
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++n;
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}
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}
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}
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void
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EditorSummary::render_region (RegionView* r, cairo_t* cr, nframes_t start, double y) const
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{
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cairo_move_to (cr, (r->region()->position() - start) * _pixels_per_frame, y);
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cairo_line_to (cr, (r->region()->position() - start + r->region()->length()) * _pixels_per_frame, y);
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cairo_stroke (cr);
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}
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void
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EditorSummary::set_dirty ()
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{
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ENSURE_GUI_THREAD (mem_fun (*this, &EditorSummary::set_dirty));
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_regions_dirty = true;
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queue_draw ();
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}
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void
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EditorSummary::set_bounds_dirty ()
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{
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ENSURE_GUI_THREAD (mem_fun (*this, &EditorSummary::set_bounds_dirty));
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queue_draw ();
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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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req->width = 64;
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req->height = 64;
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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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Gtk::EventBox::on_size_allocate (alloc);
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_width = alloc.get_width ();
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_height = alloc.get_height ();
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set_dirty ();
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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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if (ev->button == 1) {
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nframes_t f = (ev->x / _pixels_per_frame) + _session->current_start_frame();
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nframes_t const h = _editor->current_page_frames () / 2;
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if (f > h) {
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f -= h;
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} else {
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f = 0;
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}
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_editor->reset_x_origin (f);
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}
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return true;
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}
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