static void plot_cylinder_pressure(struct dive *dive, cairo_t *cr,
double topx, double topy, double maxx, double maxy)
{
int i;
double scalex, scaley;
if (!get_cylinder_pressure_range(dive, &scalex, &scaley))
return;
cairo_set_source_rgba(cr, 0.2, 1.0, 0.2, 0.80);
cairo_move_to(cr, SCALE(0, dive->beginning_pressure.mbar));
for (i = 1; i < dive->samples; i++) {
int sec, mbar;
struct sample *sample = dive->sample + i;
sec = sample->time.seconds;
mbar = sample->cylinderpressure.mbar;
if (!mbar)
continue;
cairo_line_to(cr, SCALE(sec, mbar));
}
cairo_line_to(cr, SCALE(dive->duration.seconds, dive->end_pressure.mbar));
cairo_stroke(cr);
}
void ProfileGraphicsView::plot_cylinder_pressure()
{
int i;
int last_index = -1;
int lift_pen = FALSE;
int first_plot = TRUE;
if (!get_cylinder_pressure_range(&gc))
return;
QPointF from, to;
for (i = 0; i < gc.pi.nr; i++) {
int mbar;
struct plot_data *entry = gc.pi.entry + i;
mbar = GET_PRESSURE(entry);
if (entry->cylinderindex != last_index) {
lift_pen = TRUE;
}
if (!mbar) {
lift_pen = TRUE;
continue;
}
QColor c = get_sac_color(entry->sac, dive->sac);
if (lift_pen) {
if (!first_plot && entry->cylinderindex == last_index) {
/* if we have a previous event from the same tank,
* draw at least a short line */
int prev_pr;
prev_pr = GET_PRESSURE(entry - 1);
QGraphicsLineItem *item = new QGraphicsLineItem(SCALEGC((entry-1)->sec, prev_pr), SCALEGC(entry->sec, mbar));
QPen pen(defaultPen);
pen.setColor(c);
item->setPen(pen);
scene()->addItem(item);
} else {
first_plot = FALSE;
from = QPointF(SCALEGC(entry->sec, mbar));
}
lift_pen = FALSE;
} else {
to = QPointF(SCALEGC(entry->sec, mbar));
QGraphicsLineItem *item = new QGraphicsLineItem(from.x(), from.y(), to.x(), to.y());
QPen pen(defaultPen);
pen.setColor(c);
item->setPen(pen);
scene()->addItem(item);
}
from = QPointF(SCALEGC(entry->sec, mbar));
last_index = entry->cylinderindex;
}
}
void ProfileGraphicsView::plot_cylinder_pressure_text()
{
int i;
int mbar, cyl;
int seen_cyl[MAX_CYLINDERS] = { FALSE, };
int last_pressure[MAX_CYLINDERS] = { 0, };
int last_time[MAX_CYLINDERS] = { 0, };
struct plot_data *entry;
struct plot_info *pi = &gc.pi;
if (!get_cylinder_pressure_range(&gc))
return;
cyl = -1;
for (i = 0; i < pi->nr; i++) {
entry = pi->entry + i;
mbar = GET_PRESSURE(entry);
if (!mbar)
continue;
if (cyl != entry->cylinderindex) {
cyl = entry->cylinderindex;
if (!seen_cyl[cyl]) {
plot_pressure_value(mbar, entry->sec, LEFT, BOTTOM);
plot_gas_value(mbar, entry->sec, LEFT, TOP,
get_o2(&dive->cylinder[cyl].gasmix),
get_he(&dive->cylinder[cyl].gasmix));
seen_cyl[cyl] = TRUE;
}
}
last_pressure[cyl] = mbar;
last_time[cyl] = entry->sec;
}
for (cyl = 0; cyl < MAX_CYLINDERS; cyl++) {
if (last_time[cyl]) {
plot_pressure_value(last_pressure[cyl], last_time[cyl], CENTER, TOP);
}
}
}
void ProfileGraphicsView::plot_cylinder_pressure(struct divecomputer *dc)
{
int i;
int last = -1, last_index = -1;
int lift_pen = FALSE;
int first_plot = TRUE;
int sac = 0;
struct plot_data *last_entry = NULL;
if (!get_cylinder_pressure_range(&gc))
return;
QPointF from, to;
for (i = 0; i < gc.pi.nr; i++) {
int mbar;
struct plot_data *entry = gc.pi.entry + i;
mbar = GET_PRESSURE(entry);
if (entry->cylinderindex != last_index) {
lift_pen = TRUE;
last_entry = NULL;
}
if (!mbar) {
lift_pen = TRUE;
continue;
}
if (!last_entry) {
last = i;
last_entry = entry;
sac = get_local_sac(entry, gc.pi.entry + i + 1, dive);
} else {
int j;
sac = 0;
for (j = last; j < i; j++)
sac += get_local_sac(gc.pi.entry + j, gc.pi.entry + j + 1, dive);
sac /= (i - last);
if (entry->sec - last_entry->sec >= SAC_WINDOW) {
last++;
last_entry = gc.pi.entry + last;
}
}
QColor c = get_sac_color(sac, dive->sac);
if (lift_pen) {
if (!first_plot && entry->cylinderindex == last_index) {
/* if we have a previous event from the same tank,
* draw at least a short line */
int prev_pr;
prev_pr = GET_PRESSURE(entry - 1);
QGraphicsLineItem *item = new QGraphicsLineItem(SCALEGC((entry-1)->sec, prev_pr), SCALEGC(entry->sec, mbar));
QPen pen(defaultPen);
pen.setColor(c);
item->setPen(pen);
scene()->addItem(item);
} else {
first_plot = FALSE;
from = QPointF(SCALEGC(entry->sec, mbar));
}
lift_pen = FALSE;
} else {
to = QPointF(SCALEGC(entry->sec, mbar));
QGraphicsLineItem *item = new QGraphicsLineItem(from.x(), from.y(), to.x(), to.y());
QPen pen(defaultPen);
pen.setColor(c);
item->setPen(pen);
scene()->addItem(item);
}
from = QPointF(SCALEGC(entry->sec, mbar));
last_index = entry->cylinderindex;
}
}
