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-rw-r--r--gtk2_ardour/crossfade_view.cc302
1 files changed, 0 insertions, 302 deletions
diff --git a/gtk2_ardour/crossfade_view.cc b/gtk2_ardour/crossfade_view.cc
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index 10792e0a93..0000000000
--- a/gtk2_ardour/crossfade_view.cc
+++ /dev/null
@@ -1,302 +0,0 @@
-/*
- Copyright (C) 2003 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
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
-*/
-
-#include <algorithm>
-
-#include "ardour/region.h"
-#include <gtkmm2ext/doi.h>
-
-#include "canvas-simplerect.h"
-#include "canvas-curve.h"
-#include "crossfade_view.h"
-#include "global_signals.h"
-#include "gui_thread.h"
-#include "rgb_macros.h"
-#include "audio_time_axis.h"
-#include "public_editor.h"
-#include "audio_region_view.h"
-#include "utils.h"
-#include "canvas_impl.h"
-#include "ardour_ui.h"
-
-using namespace ARDOUR;
-using namespace PBD;
-using namespace Editing;
-using namespace Gnome;
-using namespace Canvas;
-
-PBD::Signal1<void,CrossfadeView*> CrossfadeView::CatchDeletion;
-
-CrossfadeView::CrossfadeView (ArdourCanvas::Group *parent,
- RouteTimeAxisView &tv,
- boost::shared_ptr<Crossfade> xf,
- double spu,
- Gdk::Color& basic_color,
- AudioRegionView& lview,
- AudioRegionView& rview)
-
-
- : TimeAxisViewItem ("xfade" /*xf.name()*/, *parent, tv, spu, basic_color, xf->position(),
- xf->length(), false, false, TimeAxisViewItem::Visibility (TimeAxisViewItem::ShowFrame)),
- crossfade (xf),
- left_view (lview),
- right_view (rview),
- _all_in_view (false),
- _child_height (0)
-{
- _valid = true;
- _visible = true;
-
- fade_in = new Line (*group);
- fade_in->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_CrossfadeLine.get();
- fade_in->property_width_pixels() = 1;
-
- fade_out = new Line (*group);
- fade_out->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_CrossfadeLine.get();
- fade_out->property_width_pixels() = 1;
-
- /* no frame around the xfade or overlap rects */
-
- frame->property_outline_what() = 0;
-
- /* never show the vestigial frame */
- vestigial_frame->hide();
- show_vestigial = false;
-
- group->signal_event().connect (sigc::bind (sigc::mem_fun (tv.editor(), &PublicEditor::canvas_crossfade_view_event), group, this));
-
- PropertyChange all_crossfade_properties;
- all_crossfade_properties.add (ARDOUR::Properties::active);
- all_crossfade_properties.add (ARDOUR::Properties::follow_overlap);
- crossfade_changed (all_crossfade_properties);
-
- crossfade->PropertyChanged.connect (*this, invalidator (*this), ui_bind (&CrossfadeView::crossfade_changed, this, _1), gui_context());
- crossfade->FadesChanged.connect (*this, invalidator (*this), ui_bind (&CrossfadeView::crossfade_fades_changed, this), gui_context());
- ColorsChanged.connect (sigc::mem_fun (*this, &CrossfadeView::color_handler));
-}
-
-CrossfadeView::~CrossfadeView ()
-{
- CatchDeletion (this) ; /* EMIT_SIGNAL */
-}
-
-void
-CrossfadeView::reset_width_dependent_items (double pixel_width)
-{
- TimeAxisViewItem::reset_width_dependent_items (pixel_width);
-
- active_changed ();
-
- if (pixel_width < 5) {
- fade_in->hide();
- fade_out->hide();
- }
-}
-
-void
-CrossfadeView::set_heights (double fade_height, double child_height)
-{
- if (child_height > TimeAxisViewItem::NAME_HIGHLIGHT_THRESH) {
- fade_height -= NAME_HIGHLIGHT_SIZE;
- child_height -= NAME_HIGHLIGHT_SIZE;
- }
-
- TimeAxisViewItem::set_height (fade_height);
- _child_height = child_height;
-
- redraw_curves ();
-}
-
-void
-CrossfadeView::crossfade_changed (const PropertyChange& what_changed)
-{
- bool need_redraw_curves = false;
-
- if (what_changed.contains (ARDOUR::bounds_change)) {
- set_position (crossfade->position(), this);
- set_duration (crossfade->length(), this);
-
- /* set_duration will call reset_width_dependent_items which in turn will call redraw_curves via active_changed,
- so no need for us to call it */
- need_redraw_curves = false;
- }
-
- if (what_changed.contains (ARDOUR::Properties::follow_overlap)) {
- need_redraw_curves = true;
- }
-
- if (what_changed.contains (ARDOUR::Properties::active)) {
- /* calls redraw_curves */
- active_changed ();
- } else if (need_redraw_curves) {
- redraw_curves ();
- }
-}
-
-/** Set up our fade_in and fade_out curves to contain points for the currently visible portion
- * of the crossfade.
- */
-void
-CrossfadeView::redraw_curves ()
-{
- if (!crossfade->following_overlap()) {
- /* curves should not be visible */
- fade_in->hide ();
- fade_out->hide ();
- return;
- }
-
- if (_height < 0) {
- /* no space allocated yet */
- return;
- }
-
- PublicEditor& editor = get_time_axis_view().editor ();
-
- framepos_t const editor_left = editor.leftmost_position ();
- framepos_t const editor_right = editor_left + editor.current_page_frames ();
- framepos_t const xfade_left = crossfade->position ();
- framepos_t const xfade_right = xfade_left + crossfade->length ();
-
- /* Work out the range of our frames that are visible */
- framepos_t const min_frames = std::max (editor_left, xfade_left);
- framepos_t const max_frames = std::min (editor_right, xfade_right);
-
- _all_in_view = (editor_left <= xfade_left && editor_right >= xfade_right);
-
- /* Hence the number of points that we will render */
- int32_t const npoints = editor.frame_to_pixel (max_frames - min_frames);
-
- if (!_visible || !crossfade->active() || npoints < 3) {
- fade_in->hide();
- fade_out->hide();
- return;
- } else {
- fade_in->show();
- fade_out->show();
- }
-
- Points* points = get_canvas_points ("xfade edit redraw", npoints);
- float* vec = new float[npoints];
-
- crossfade->fade_in().curve().get_vector (min_frames - crossfade->position(), max_frames - crossfade->position(), vec, npoints);
-
- /* Work out the offset from the start of the crossfade to the visible part, in pixels */
- double xoff = 0;
- if (crossfade->position() < editor.leftmost_position()) {
- xoff = editor.frame_to_pixel (min_frames) - editor.frame_to_pixel (crossfade->position ());
- }
-
- for (int i = 0, pci = 0; i < npoints; ++i) {
- Art::Point &p = (*points)[pci++];
- p.set_x (xoff + i + 1);
-
- double const ho = crossfade->in()->layer() > crossfade->out()->layer() ? _child_height : _height;
- p.set_y (ho - ((_child_height - 2) * vec[i]));
- }
-
- fade_in->property_points() = *points;
-
- crossfade->fade_out().curve().get_vector (min_frames - crossfade->position(), max_frames - crossfade->position(), vec, npoints);
-
- for (int i = 0, pci = 0; i < npoints; ++i) {
- Art::Point &p = (*points)[pci++];
- p.set_x (xoff + i + 1);
-
- double const ho = crossfade->in()->layer() < crossfade->out()->layer() ? _child_height : _height;
- p.set_y (ho - ((_child_height - 2) * vec[i]));
- }
-
- fade_out->property_points() = *points;
-
- delete [] vec;
-
- delete points;
-
- /* XXX this is ugly, but it will have to wait till Crossfades are reimplented
- as regions. This puts crossfade views on top of a track, above all regions.
- */
-
- group->raise_to_top();
-}
-
-void
-CrossfadeView::active_changed ()
-{
- if (crossfade->active()) {
- frame->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_ActiveCrossfade.get();
- } else {
- frame->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_InactiveCrossfade.get();
- }
-
- redraw_curves ();
-}
-
-void
-CrossfadeView::color_handler ()
-{
- active_changed ();
-}
-
-void
-CrossfadeView::set_valid (bool yn)
-{
- _valid = yn;
-}
-
-void
-CrossfadeView::show ()
-{
- _visible = true;
- group->show();
- redraw_curves ();
-}
-
-void
-CrossfadeView::hide ()
-{
- group->hide();
- _visible = false;
-}
-
-void
-CrossfadeView::fake_hide ()
-{
- group->hide();
-}
-
-void
-CrossfadeView::crossfade_fades_changed ()
-{
- redraw_curves ();
-}
-
-void
-CrossfadeView::horizontal_position_changed ()
-{
- /* If the crossfade curves are entirely within the editor's visible space, there is
- no need to redraw them here as they will be completely drawn (as distinct from
- the other case where the horizontal position change will uncover `undrawn'
- sections).
- */
-
- if (!_all_in_view) {
- redraw_curves ();
- }
-}
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