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subsurface/statistics.c
Dirk Hohndel 7cf0f6d5e1 Stop relying on gtk to track which dives are selected 
We spend way too much effort trying to get gtk to manage the dives that
are selected. The straw that broke the camel's back is that gtk forces us
to expand any nodes that we want to select - so selecting a summary entry
for a dive trip forced us to expand all the dives in the dive trip. Which
as Linus pointed out really sucked from a user experience.

So instead we now completeley ignore gtk's weird idea of what is selected
and what isn't and simply track things ourselves. We still need to play
some games with gtk to make sure that the correct rows are SHOWN as
selected, but still, the overall code seems much cleaner.

This commit contains a bunch of debugging code that is ifdef'ed out -
this is extremely useful to make sure I didn't mess anything up, but
eventually I'll want to remove that again as it just looks ugly in the
code.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
2012-08-16 16:47:49 -07:00

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/* statistics.c */
/* creates the UI for the Info & Stats page -
* controlled through the following interfaces:
*
* void show_dive_stats(struct dive *dive)
* void flush_dive_stats_changes(struct dive *dive)
*
* called from gtk-ui:
* GtkWidget *stats_widget(void)
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <stdarg.h>
#include <time.h>
#include "dive.h"
#include "display.h"
#include "display-gtk.h"
#include "divelist.h"
typedef struct {
GtkWidget *date,
*dive_time,
*surf_intv,
*max_depth,
*avg_depth,
*water_temp,
*sac,
*otu,
*o2he,
*gas_used;
} single_stat_widget_t;
static single_stat_widget_t single_w;
typedef struct {
GtkWidget *total_time,
*avg_time,
*shortest_time,
*longest_time,
*max_overall_depth,
*min_overall_depth,
*avg_overall_depth,
*min_sac,
*avg_sac,
*max_sac,
*selection_size,
*max_temp,
*avg_temp,
*min_temp;
} total_stats_widget_t;
static total_stats_widget_t stats_w;
typedef struct {
duration_t total_time;
/* avg_time is simply total_time / nr -- let's not keep this */
duration_t shortest_time;
duration_t longest_time;
depth_t max_depth;
depth_t min_depth;
depth_t avg_depth;
volume_t max_sac;
volume_t min_sac;
volume_t avg_sac;
int max_temp;
int min_temp;
unsigned int combined_temp;
unsigned int combined_count;
unsigned int selection_size;
unsigned int total_sac_time;
} stats_t;
static stats_t stats;
static stats_t stats_selection;
static void process_dive(struct dive *dp, stats_t *stats)
{
int old_tt, sac_time = 0;
const char *unit;
old_tt = stats->total_time.seconds;
stats->total_time.seconds += dp->duration.seconds;
if (dp->duration.seconds > stats->longest_time.seconds)
stats->longest_time.seconds = dp->duration.seconds;
if (stats->shortest_time.seconds == 0 || dp->duration.seconds < stats->shortest_time.seconds)
stats->shortest_time.seconds = dp->duration.seconds;
if (dp->maxdepth.mm > stats->max_depth.mm)
stats->max_depth.mm = dp->maxdepth.mm;
if (stats->min_depth.mm == 0 || dp->maxdepth.mm < stats->min_depth.mm)
stats->min_depth.mm = dp->maxdepth.mm;
if (dp->watertemp.mkelvin) {
if (stats->min_temp == 0 || dp->watertemp.mkelvin < stats->min_temp)
stats->min_temp = dp->watertemp.mkelvin;
if (dp->watertemp.mkelvin > stats->max_temp)
stats->max_temp = dp->watertemp.mkelvin;
stats->combined_temp += get_temp_units(dp->watertemp.mkelvin, &unit);
stats->combined_count++;
}
/* Maybe we should drop zero-duration dives */
if (!dp->duration.seconds)
return;
stats->avg_depth.mm = (1.0 * old_tt * stats->avg_depth.mm +
dp->duration.seconds * dp->meandepth.mm) / stats->total_time.seconds;
if (dp->sac > 2800) { /* less than .1 cuft/min (2800ml/min) is bogus */
sac_time = stats->total_sac_time + dp->duration.seconds;
stats->avg_sac.mliter = (1.0 * stats->total_sac_time * stats->avg_sac.mliter +
dp->duration.seconds * dp->sac) / sac_time ;
if (dp->sac > stats->max_sac.mliter)
stats->max_sac.mliter = dp->sac;
if (stats->min_sac.mliter == 0 || dp->sac < stats->min_sac.mliter)
stats->min_sac.mliter = dp->sac;
stats->total_sac_time = sac_time;
}
}
static void process_all_dives(struct dive *dive, struct dive **prev_dive)
{
int idx;
struct dive *dp;
*prev_dive = NULL;
memset(&stats, 0, sizeof(stats));
if (dive_table.nr > 0) {
stats.shortest_time.seconds = dive_table.dives[0]->duration.seconds;
stats.min_depth.mm = dive_table.dives[0]->maxdepth.mm;
stats.selection_size = dive_table.nr;
}
/* this relies on the fact that the dives in the dive_table
* are in chronological order */
for (idx = 0; idx < dive_table.nr; idx++) {
dp = dive_table.dives[idx];
if (dp->when == dive->when) {
/* that's the one we are showing */
if (idx > 0)
*prev_dive = dive_table.dives[idx-1];
}
process_dive(dp, &stats);
}
}
/* make sure we skip the selected summary entries */
void process_selected_dives(GList *selected_dives, int *selectiontracker, GtkTreeModel *model)
{
struct dive *dp;
unsigned int i;
int idx;
memset(&stats_selection, 0, sizeof(stats_selection));
for (i = 0; i < amount_selected; ++i) {
idx = selectiontracker[i];
if (idx > 0) {
dp = get_dive(idx);
if (dp) {
process_dive(dp, &stats_selection);
}
}
}
stats_selection.selection_size = amount_selected;
}
static void set_label(GtkWidget *w, const char *fmt, ...)
{
char buf[80];
va_list args;
va_start(args, fmt);
vsnprintf(buf, sizeof(buf), fmt, args);
va_end(args);
gtk_label_set_text(GTK_LABEL(w), buf);
}
static char * get_time_string(int seconds, int maxdays)
{
static char buf[80];
if (maxdays && seconds > 3600 * 24 * maxdays)
snprintf(buf, sizeof(buf), "more than %d days", maxdays);
else {
int days = seconds / 3600 / 24;
int hours = (seconds - days * 3600 * 24) / 3600;
int minutes = (seconds - days * 3600 * 24 - hours * 3600) / 60;
if (days > 0)
snprintf(buf, sizeof(buf), "%dd %dh %dmin", days, hours, minutes);
else
snprintf(buf, sizeof(buf), "%dh %dmin", hours, minutes);
}
return buf;
}
static void show_single_dive_stats(struct dive *dive)
{
char buf[80];
double value;
int decimals;
const char *unit;
int idx, offset, gas_used;
struct dive *prev_dive;
struct tm *tm;
process_all_dives(dive, &prev_dive);
tm = gmtime(&dive->when);
snprintf(buf, sizeof(buf),
"%s, %s %d, %d %2d:%02d",
weekday(tm->tm_wday),
monthname(tm->tm_mon),
tm->tm_mday, tm->tm_year + 1900,
tm->tm_hour, tm->tm_min);
set_label(single_w.date, buf);
set_label(single_w.dive_time, "%d min", (dive->duration.seconds + 30) / 60);
if (prev_dive)
set_label(single_w.surf_intv,
get_time_string(dive->when - (prev_dive->when + prev_dive->duration.seconds), 4));
else
set_label(single_w.surf_intv, "unknown");
value = get_depth_units(dive->maxdepth.mm, &decimals, &unit);
set_label(single_w.max_depth, "%.*f %s", decimals, value, unit);
value = get_depth_units(dive->meandepth.mm, &decimals, &unit);
set_label(single_w.avg_depth, "%.*f %s", decimals, value, unit);
if (dive->watertemp.mkelvin) {
value = get_temp_units(dive->watertemp.mkelvin, &unit);
set_label(single_w.water_temp, "%.1f %s", value, unit);
} else
set_label(single_w.water_temp, "");
value = get_volume_units(dive->sac, &decimals, &unit);
if (value > 0) {
set_label(single_w.sac, "%.*f %s/min", decimals, value, unit);
} else
set_label(single_w.sac, "");
set_label(single_w.otu, "%d", dive->otu);
offset = 0;
gas_used = 0;
buf[0] = '\0';
/* for the O2/He readings just create a list of them */
for (idx = 0; idx < MAX_CYLINDERS; idx++) {
cylinder_t *cyl = &dive->cylinder[idx];
unsigned int start, end;
start = cyl->start.mbar ? : cyl->sample_start.mbar;
end = cyl->end.mbar ? : cyl->sample_end.mbar;
if (!cylinder_none(cyl)) {
/* 0% O2 strangely means air, so 21% - I don't like that at all */
int o2 = cyl->gasmix.o2.permille ? : AIR_PERMILLE;
if (offset > 0) {
snprintf(buf+offset, 80-offset, ", ");
offset += 2;
}
snprintf(buf+offset, 80-offset, "%d/%d", (o2 + 5) / 10,
(cyl->gasmix.he.permille + 5) / 10);
offset = strlen(buf);
}
/* and if we have size, start and end pressure, we can
* calculate the total gas used */
if (cyl->type.size.mliter && start && end)
gas_used += cyl->type.size.mliter / 1000.0 * (start - end);
}
set_label(single_w.o2he, buf);
if (gas_used) {
value = get_volume_units(gas_used, &decimals, &unit);
set_label(single_w.gas_used, "%.*f %s", decimals, value, unit);
} else
set_label(single_w.gas_used, "");
}
static void show_total_dive_stats(struct dive *dive)
{
double value;
int decimals, seconds;
const char *unit;
stats_t *stats_ptr;
if (amount_selected < 2)
stats_ptr = &stats;
else
stats_ptr = &stats_selection;
set_label(stats_w.selection_size, "%d", stats_ptr->selection_size);
if (stats_ptr->min_temp) {
value = get_temp_units(stats_ptr->min_temp, &unit);
set_label(stats_w.min_temp, "%.1f %s", value, unit);
}
if (stats_ptr->combined_temp && stats_ptr->combined_count)
set_label(stats_w.avg_temp, "%.1f %s", stats_ptr->combined_temp / (stats_ptr->combined_count * 1.0), unit);
if (stats_ptr->max_temp) {
value = get_temp_units(stats_ptr->max_temp, &unit);
set_label(stats_w.max_temp, "%.1f %s", value, unit);
}
set_label(stats_w.total_time, get_time_string(stats_ptr->total_time.seconds, 0));
seconds = stats_ptr->total_time.seconds;
if (stats_ptr->selection_size)
seconds /= stats_ptr->selection_size;
set_label(stats_w.avg_time, get_time_string(seconds, 0));
set_label(stats_w.longest_time, get_time_string(stats_ptr->longest_time.seconds, 0));
set_label(stats_w.shortest_time, get_time_string(stats_ptr->shortest_time.seconds, 0));
value = get_depth_units(stats_ptr->max_depth.mm, &decimals, &unit);
set_label(stats_w.max_overall_depth, "%.*f %s", decimals, value, unit);
value = get_depth_units(stats_ptr->min_depth.mm, &decimals, &unit);
set_label(stats_w.min_overall_depth, "%.*f %s", decimals, value, unit);
value = get_depth_units(stats_ptr->avg_depth.mm, &decimals, &unit);
set_label(stats_w.avg_overall_depth, "%.*f %s", decimals, value, unit);
value = get_volume_units(stats_ptr->max_sac.mliter, &decimals, &unit);
set_label(stats_w.max_sac, "%.*f %s/min", decimals, value, unit);
value = get_volume_units(stats_ptr->min_sac.mliter, &decimals, &unit);
set_label(stats_w.min_sac, "%.*f %s/min", decimals, value, unit);
value = get_volume_units(stats_ptr->avg_sac.mliter, &decimals, &unit);
set_label(stats_w.avg_sac, "%.*f %s/min", decimals, value, unit);
}
void show_dive_stats(struct dive *dive)
{
/* they have to be called in this order, as 'total' depends on
* calculations done in 'single' */
show_single_dive_stats(dive);
show_total_dive_stats(dive);
}
void flush_dive_stats_changes(struct dive *dive)
{
/* We do nothing: we require the "Ok" button press */
}
static GtkWidget *new_info_label_in_frame(GtkWidget *box, const char *label)
{
GtkWidget *label_widget;
GtkWidget *frame;
frame = gtk_frame_new(label);
label_widget = gtk_label_new(NULL);
gtk_box_pack_start(GTK_BOX(box), frame, TRUE, TRUE, 3);
gtk_container_add(GTK_CONTAINER(frame), label_widget);
return label_widget;
}
GtkWidget *total_stats_widget(void)
{
GtkWidget *vbox, *hbox, *statsframe, *framebox;
vbox = gtk_vbox_new(FALSE, 3);
statsframe = gtk_frame_new("Statistics");
gtk_box_pack_start(GTK_BOX(vbox), statsframe, TRUE, FALSE, 3);
framebox = gtk_vbox_new(FALSE, 3);
gtk_container_add(GTK_CONTAINER(statsframe), framebox);
/* first row */
hbox = gtk_hbox_new(FALSE, 3);
gtk_box_pack_start(GTK_BOX(framebox), hbox, TRUE, FALSE, 3);
stats_w.selection_size = new_info_label_in_frame(hbox, "Dives");
stats_w.max_temp = new_info_label_in_frame(hbox, "Max Temp");
stats_w.min_temp = new_info_label_in_frame(hbox, "Min Temp");
stats_w.avg_temp = new_info_label_in_frame(hbox, "Avg Temp");
/* second row */
hbox = gtk_hbox_new(FALSE, 3);
gtk_box_pack_start(GTK_BOX(framebox), hbox, TRUE, FALSE, 3);
stats_w.total_time = new_info_label_in_frame(hbox, "Total Time");
stats_w.avg_time = new_info_label_in_frame(hbox, "Avg Time");
stats_w.longest_time = new_info_label_in_frame(hbox, "Longest Dive");
stats_w.shortest_time = new_info_label_in_frame(hbox, "Shortest Dive");
/* third row */
hbox = gtk_hbox_new(FALSE, 3);
gtk_box_pack_start(GTK_BOX(framebox), hbox, TRUE, FALSE, 3);
stats_w.max_overall_depth = new_info_label_in_frame(hbox, "Max Depth");
stats_w.min_overall_depth = new_info_label_in_frame(hbox, "Min Depth");
stats_w.avg_overall_depth = new_info_label_in_frame(hbox, "Avg Depth");
/* fourth row */
hbox = gtk_hbox_new(FALSE, 3);
gtk_box_pack_start(GTK_BOX(framebox), hbox, TRUE, FALSE, 3);
stats_w.max_sac = new_info_label_in_frame(hbox, "Max SAC");
stats_w.min_sac = new_info_label_in_frame(hbox, "Min SAC");
stats_w.avg_sac = new_info_label_in_frame(hbox, "Avg SAC");
return vbox;
}
GtkWidget *single_stats_widget(void)
{
GtkWidget *vbox, *hbox, *infoframe, *framebox;
vbox = gtk_vbox_new(FALSE, 3);
infoframe = gtk_frame_new("Dive Info");
gtk_box_pack_start(GTK_BOX(vbox), infoframe, TRUE, FALSE, 3);
framebox = gtk_vbox_new(FALSE, 3);
gtk_container_add(GTK_CONTAINER(infoframe), framebox);
/* first row */
hbox = gtk_hbox_new(FALSE, 3);
gtk_box_pack_start(GTK_BOX(framebox), hbox, TRUE, FALSE, 3);
single_w.date = new_info_label_in_frame(hbox, "Date");
single_w.dive_time = new_info_label_in_frame(hbox, "Dive Time");
single_w.surf_intv = new_info_label_in_frame(hbox, "Surf Intv");
/* second row */
hbox = gtk_hbox_new(FALSE, 3);
gtk_box_pack_start(GTK_BOX(framebox), hbox, TRUE, FALSE, 3);
single_w.max_depth = new_info_label_in_frame(hbox, "Max Depth");
single_w.avg_depth = new_info_label_in_frame(hbox, "Avg Depth");
single_w.water_temp = new_info_label_in_frame(hbox, "Water Temp");
/* third row */
hbox = gtk_hbox_new(FALSE, 3);
gtk_box_pack_start(GTK_BOX(framebox), hbox, TRUE, FALSE, 3);
single_w.sac = new_info_label_in_frame(hbox, "SAC");
single_w.otu = new_info_label_in_frame(hbox, "OTU");
single_w.o2he = new_info_label_in_frame(hbox, "O" UTF8_SUBSCRIPT_2 " / He");
single_w.gas_used = new_info_label_in_frame(hbox, "Gas Used");
return vbox;
}
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