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Clean up type handling of cylinder pressure plot

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Soon we'll show things in psi or bar depending on user choice.  Let's
not get confused about units before we do.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Linus Torvalds 2011-09-06 19:14:56 -07:00
parent 05857e0a05
commit 75cb94f067
1 changed files with 17 additions and 18 deletions
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35
profile.c
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@ -214,18 +214,17 @@ static void plot_depth_profile(struct dive *dive, cairo_t *cr,
/* gets both the actual start and end pressure as well as the scaling factors */
static int get_cylinder_pressure_range(struct dive *dive, double *scalex, double *scaley,
double *startp, double *endp)
pressure_t *startp, pressure_t *endp)
{
int i;
double min, max;
double bar;
int min, max, mbar;
*scalex = round_seconds_up(dive->duration.seconds);
max = 0;
min = 5000;
min = 5000000;
if (startp)
*startp = *endp = 0.0;
startp->mbar = endp->mbar = 0;
for (i = 0; i < dive->samples; i++) {
struct sample *sample = dive->sample + i;
@ -233,18 +232,18 @@ static int get_cylinder_pressure_range(struct dive *dive, double *scalex, double
/* FIXME! We only track cylinder 0 right now */
if (sample->cylinderindex)
continue;
if (!sample->cylinderpressure.mbar)
mbar = sample->cylinderpressure.mbar;
if (!mbar)
continue;
bar = sample->cylinderpressure.mbar;
if (bar != 0.0 && startp && *startp == 0.0)
*startp = bar;
if (bar < min)
min = bar;
if (bar > max)
max = bar;
if (mbar && startp && !startp->mbar)
startp->mbar = mbar;
if (mbar < min)
min = mbar;
if (mbar > max)
max = mbar;
}
if (endp)
*endp = bar;
endp->mbar = mbar;
if (!max)
return 0;
*scaley = max * 1.5;
@ -332,16 +331,16 @@ static void plot_cylinder_pressure_text(struct dive *dive, cairo_t *cr,
double maxx, double maxy)
{
double scalex, scaley;
double startp,endp;
pressure_t startp, endp;
cairo_set_font_size(cr, 10);
if (get_cylinder_pressure_range(dive, &scalex, &scaley,
&startp, &endp)) {
text_render_options_t tro = {0.2, 1.0, 0.2, LEFT};
plot_text(cr, &tro, SCALE(0, startp), "%3.0f bar", startp/1000.0);
plot_text(cr, &tro, SCALE(dive->duration.seconds, endp),
"%3.0f bar", endp/1000.0);
plot_text(cr, &tro, SCALE(0, startp.mbar), "%3.0f bar", startp.mbar/1000.0);
plot_text(cr, &tro, SCALE(dive->duration.seconds, endp.mbar),
"%3.0f bar", endp.mbar/1000.0);
}
}