2 Copyright (C) 2003 Paul Davis
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU General Public License as published by
6 the Free Software Foundation; either version 2 of the License, or
7 (at your option) any later version.
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU General Public License for more details.
14 You should have received a copy of the GNU General Public License
15 along with this program; if not, write to the Free Software
16 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 #include <ardour/region.h>
23 #include <gtkmm2ext/doi.h>
25 #include "canvas-simplerect.h"
26 #include "canvas-curve.h"
27 #include "crossfade_view.h"
28 #include "rgb_macros.h"
29 #include "audio_time_axis.h"
30 #include "public_editor.h"
31 #include "audio_region_view.h"
33 #include "canvas_impl.h"
34 #include "ardour_ui.h"
37 using namespace ARDOUR
;
39 using namespace Editing
;
40 using namespace Gnome
;
41 using namespace Canvas
;
43 sigc::signal
<void,CrossfadeView
*> CrossfadeView::GoingAway
;
45 CrossfadeView::CrossfadeView (ArdourCanvas::Group
*parent
,
46 RouteTimeAxisView
&tv
,
47 boost::shared_ptr
<Crossfade
> xf
,
49 Gdk::Color
& basic_color
,
50 AudioRegionView
& lview
,
51 AudioRegionView
& rview
)
54 : TimeAxisViewItem ("xfade" /*xf.name()*/, *parent
, tv
, spu
, basic_color
, xf
->position(),
55 xf
->length(), false, TimeAxisViewItem::Visibility (TimeAxisViewItem::ShowFrame
)),
64 fade_in
= new Line (*group
);
65 fade_in
->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_CrossfadeLine
.get();
66 fade_in
->property_width_pixels() = 1;
68 fade_out
= new Line (*group
);
69 fade_out
->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_CrossfadeLine
.get();
70 fade_out
->property_width_pixels() = 1;
72 set_height (get_time_axis_view().current_height());
74 /* no frame around the xfade or overlap rects */
76 frame
->property_outline_what() = 0;
78 /* never show the vestigial frame */
80 vestigial_frame
->hide();
81 show_vestigial
= false;
83 group
->signal_event().connect (bind (mem_fun (tv
.editor
, &PublicEditor::canvas_crossfade_view_event
), group
, this));
85 crossfade_changed (Change (~0));
87 crossfade
->StateChanged
.connect (mem_fun(*this, &CrossfadeView::crossfade_changed
));
88 ColorsChanged
.connect (mem_fun (*this, &CrossfadeView::color_handler
));
91 CrossfadeView::~CrossfadeView ()
93 GoingAway (this) ; /* EMIT_SIGNAL */
97 CrossfadeView::reset_width_dependent_items (double pixel_width
)
99 TimeAxisViewItem::reset_width_dependent_items (pixel_width
);
103 if (pixel_width
< 5) {
110 CrossfadeView::set_height (double height
)
112 if (height
<= TimeAxisView::hSmaller
) {
113 TimeAxisViewItem::set_height (height
- 3);
115 TimeAxisViewItem::set_height (height
- NAME_HIGHLIGHT_SIZE
- 3 );
122 CrossfadeView::crossfade_changed (Change what_changed
)
124 bool need_redraw_curves
= false;
126 if (what_changed
& BoundsChanged
) {
127 set_position (crossfade
->position(), this);
128 set_duration (crossfade
->length(), this);
129 need_redraw_curves
= true;
132 if (what_changed
& Crossfade::FollowOverlapChanged
) {
133 need_redraw_curves
= true;
136 if (what_changed
& Crossfade::ActiveChanged
) {
137 /* calls redraw_curves */
139 } else if (need_redraw_curves
) {
145 CrossfadeView::redraw_curves ()
152 if (!crossfade
->following_overlap()) {
153 /* curves should not be visible */
160 At "height - 3.0" the bottom of the crossfade touches the name highlight or the bottom of the track (if the
161 track is either Small or Smaller.
163 double tav_height
= get_time_axis_view().current_height();
164 if (tav_height
== TimeAxisView::hSmaller
||
165 tav_height
== TimeAxisView::hSmall
) {
166 h
= tav_height
- 3.0;
168 h
= tav_height
- NAME_HIGHLIGHT_SIZE
- 3.0;
172 /* no space allocated yet */
176 npoints
= get_time_axis_view().editor
.frame_to_pixel (crossfade
->length());
177 // npoints = std::min (gdk_screen_width(), npoints);
179 if (!_visible
|| !crossfade
->active() || npoints
< 3) {
188 points
= get_canvas_points ("xfade edit redraw", npoints
);
189 vec
= new float[npoints
];
191 crossfade
->fade_in().get_vector (0, crossfade
->length(), vec
, npoints
);
193 for (int i
= 0, pci
= 0; i
< npoints
; ++i
) {
194 Art::Point
&p
= (*points
)[pci
++];
196 p
.set_y(2.0 + h
- (h
* vec
[i
]));
198 fade_in
->property_points() = *points
;
200 crossfade
->fade_out().get_vector (0, crossfade
->length(), vec
, npoints
);
201 for (int i
= 0, pci
= 0; i
< npoints
; ++i
) {
202 Art::Point
&p
= (*points
)[pci
++];
204 p
.set_y(2.0 + h
- (h
* vec
[i
]));
206 fade_out
->property_points() = *points
;
212 /* XXX this is ugly, but it will have to wait till Crossfades are reimplented
213 as regions. This puts crossfade views on top of a track, above all regions.
216 group
->raise_to_top();
220 CrossfadeView::active_changed ()
222 if (crossfade
->active()) {
223 frame
->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_ActiveCrossfade
.get();
225 frame
->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_InactiveCrossfade
.get();
232 CrossfadeView::color_handler ()
238 CrossfadeView::set_valid (bool yn
)
244 CrossfadeView::upper_regionview () const
246 if (left_view
.region()->layer() > right_view
.region()->layer()) {
254 CrossfadeView::show ()
261 CrossfadeView::hide ()
268 CrossfadeView::fake_hide ()