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livetrax/gtk2_ardour/marker.cc
Taybin Rutkin 14d43ca9fe Switched to use libgnomecanvas (not the C++ one). 
git-svn-id: svn://localhost/trunk/ardour2@30 d708f5d6-7413-0410-9779-e7cbd77b26cf
2005-09-25 22:26:56 +00:00

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/*
Copyright (C) 2001 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.
$Id$
*/
#include <ardour/tempo.h>
#include "marker.h"
#include "public_editor.h"
#include "canvas-simpleline.h"
#include "utils.h"
#include "i18n.h"
Marker::Marker (PublicEditor& ed, GnomeCanvasGroup *parent, guint32 rgba, const string& annotation,
Type type, gint (*callback)(GnomeCanvasItem *, GdkEvent *, gpointer), jack_nframes_t frame)
: editor (ed), _type(type)
{
double label_offset = 0;
/* Shapes we use:
Mark:
(0,0) -> (6,0)
^ |
| V
(0,5) (6,5)
\ /
(3,10)
TempoMark:
MeterMark:
(3,0)
/ \
(0,5) -> (6,5)
^ |
| V
(0,10)<-(6,10)
Start:
0,0 -> 5,0
| \
| 10,5
| /
0,10 -> 5,10
End:
5,0 -> 10,0
/ |
0,5 |
\ |
5,10 <-10,10
TransportStart:
0,0->3,0
| |
| |
| |
| 3,8 -> 7,8
| |
0,11 ------ 7,11
TransportEnd:
4,0->7,0
| |
| |
| |
0,8 ---- 4,8 |
| |
0,11 -------- 7,11
PunchIn:
0,0 ------> 8,0
| /
| /
| 4,5
| |
| |
| |
0,11->4,11
PunchOut
0,0 -->-8,0
\ |
\ |
4,5 |
| |
| |
| |
4,11->8,11
*/
switch (type) {
case Mark:
points = gnome_canvas_points_new (6);
points->coords[0] = 0.0;
points->coords[1] = 0.0;
points->coords[2] = 6.0;
points->coords[3] = 0.0;
points->coords[4] = 6.0;
points->coords[5] = 5.0;
points->coords[6] = 3.0;
points->coords[7] = 10.0;
points->coords[8] = 0.0;
points->coords[9] = 5.0;
points->coords[10] = 0.0;
points->coords[11] = 0.0;
shift = 3;
label_offset = 8.0;
break;
case Tempo:
case Meter:
points = gnome_canvas_points_new (6);
points->coords[0] = 3.0;
points->coords[1] = 0.0;
points->coords[2] = 6.0;
points->coords[3] = 5.0;
points->coords[4] = 6.0;
points->coords[5] = 10.0;
points->coords[6] = 0.0;
points->coords[7] = 10.0;
points->coords[8] = 0.0;
points->coords[9] = 5.0;
points->coords[10] = 3.0;
points->coords[11] = 0.0;
shift = 3;
label_offset = 8.0;
break;
case Start:
points = gnome_canvas_points_new (6);
points->coords[0] = 0.0;
points->coords[1] = 0.0;
points->coords[2] = 5.0;
points->coords[3] = 0.0;
points->coords[4] = 10.0;
points->coords[5] = 5.0;
points->coords[6] = 5.0;
points->coords[7] = 10.0;
points->coords[8] = 0.0;
points->coords[9] = 10.0;
points->coords[10] = 0.0;
points->coords[11] = 0.0;
shift = 10;
label_offset = 12.0;
break;
case End:
points = gnome_canvas_points_new (6);
points->coords[0] = 5.0;
points->coords[1] = 0.0;
points->coords[2] = 10.0;
points->coords[3] = 0.0;
points->coords[4] = 10.0;
points->coords[5] = 10.0;
points->coords[6] = 5.0;
points->coords[7] = 10.0;
points->coords[8] = 0.0;
points->coords[9] = 5.0;
points->coords[10] = 5.0;
points->coords[11] = 0.0;
shift = 0;
label_offset = 12.0;
break;
case LoopStart:
points = gnome_canvas_points_new (7);
points->coords[0] = 0.0;
points->coords[1] = 0.0;
points->coords[2] = 4.0;
points->coords[3] = 0.0;
points->coords[4] = 4.0;
points->coords[5] = 8.0;
points->coords[6] = 8.0;
points->coords[7] = 8.0;
points->coords[8] = 8.0;
points->coords[9] = 11.0;
points->coords[10] = 0.0;
points->coords[11] = 11.0;
points->coords[12] = 0.0;
points->coords[13] = 0.0;
shift = 0;
label_offset = 11.0;
break;
case LoopEnd:
points = gnome_canvas_points_new (7);
points->coords[0] = 8.0;
points->coords[1] = 0.0;
points->coords[2] = 8.0;
points->coords[3] = 11.0;
points->coords[4] = 0.0;
points->coords[5] = 11.0;
points->coords[6] = 0.0;
points->coords[7] = 8.0;
points->coords[8] = 4.0;
points->coords[9] = 8.0;
points->coords[10] = 4.0;
points->coords[11] = 0.0;
points->coords[12] = 8.0;
points->coords[13] = 0.0;
shift = 8;
label_offset = 11.0;
break;
case PunchIn:
points = gnome_canvas_points_new (6);
points->coords[0] = 0.0;
points->coords[1] = 0.0;
points->coords[2] = 8.0;
points->coords[3] = 0.0;
points->coords[4] = 4.0;
points->coords[5] = 4.0;
points->coords[6] = 4.0;
points->coords[7] = 11.0;
points->coords[8] = 0.0;
points->coords[9] = 11.0;
points->coords[10] = 0.0;
points->coords[11] = 0.0;
shift = 0;
label_offset = 10.0;
break;
case PunchOut:
points = gnome_canvas_points_new (6);
points->coords[0] = 0.0;
points->coords[1] = 0.0;
points->coords[2] = 8.0;
points->coords[3] = 0.0;
points->coords[4] = 8.0;
points->coords[5] = 11.0;
points->coords[6] = 4.0;
points->coords[7] = 11.0;
points->coords[8] = 4.0;
points->coords[9] = 4.0;
points->coords[10] = 0.0;
points->coords[11] = 0.0;
shift = 8;
label_offset = 11.0;
break;
}
frame_position = frame;
unit_position = editor.frame_to_unit (frame);
/* adjust to properly locate the tip */
unit_position -= shift;
group = gnome_canvas_item_new (parent,
gnome_canvas_group_get_type(),
"x", unit_position,
"y", 1.0,
NULL);
// cerr << "set mark al points, nc = " << points->num_points << endl;
mark = gnome_canvas_item_new (GNOME_CANVAS_GROUP(group),
gnome_canvas_polygon_get_type(),
"points", points,
"fill_color_rgba", rgba,
"outline_color", "black",
NULL);
string fontname = get_font_for_style (N_("MarkerText"));
text = gnome_canvas_item_new (GNOME_CANVAS_GROUP(group),
gnome_canvas_text_get_type (),
"text", annotation.c_str(),
"x", label_offset,
"y", 0.0,
"font", fontname.c_str(),
"anchor", GTK_ANCHOR_NW,
"fill_color", "black",
NULL);
gtk_object_set_data (GTK_OBJECT(group), "marker", this);
gtk_signal_connect (GTK_OBJECT(group), "event", (GtkSignalFunc) callback, &editor);
editor.ZoomChanged.connect (mem_fun(*this, &Marker::reposition));
}
Marker::~Marker ()
{
/* destroying the group destroys its contents */
gtk_object_destroy (GTK_OBJECT(group));
gnome_canvas_points_unref (points);
}
void
Marker::set_name (const string& name)
{
gnome_canvas_item_set (text, "text", name.c_str(), NULL);
}
void
Marker::set_position (jack_nframes_t frame)
{
double new_unit_position = editor.frame_to_unit (frame);
new_unit_position -= shift;
gnome_canvas_item_move (group, new_unit_position - unit_position, 0.0);
frame_position = frame;
unit_position = new_unit_position;
}
void
Marker::reposition ()
{
set_position (frame_position);
}
void
Marker::show ()
{
gnome_canvas_item_show (group);
}
void
Marker::hide ()
{
gnome_canvas_item_hide (group);
}
void
Marker::set_color_rgba (uint32_t color)
{
gnome_canvas_item_set (mark, "fill_color_rgba", color, NULL);
}
/***********************************************************************/
TempoMarker::TempoMarker (PublicEditor& editor, GnomeCanvasGroup *parent, guint32 rgba, const string& text,
ARDOUR::TempoSection& temp,
gint (*callback)(GnomeCanvasItem *, GdkEvent *, gpointer))
: Marker (editor, parent, rgba, text, Tempo, callback, 0),
_tempo (temp)
{
set_position (_tempo.frame());
gtk_object_set_data (GTK_OBJECT(group), "tempo_marker", this);
}
TempoMarker::~TempoMarker ()
{
}
/***********************************************************************/
MeterMarker::MeterMarker (PublicEditor& editor, GnomeCanvasGroup *parent, guint32 rgba, const string& text,
ARDOUR::MeterSection& m,
gint (*callback)(GnomeCanvasItem *, GdkEvent *, gpointer))
: Marker (editor, parent, rgba, text, Meter, callback, 0),
_meter (m)
{
set_position (_meter.frame());
gtk_object_set_data (GTK_OBJECT(group), "meter_marker", this);
}
MeterMarker::~MeterMarker ()
{
}
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