profile: add local time to profile tooltip

This is a user request: add local time of dive to the tooltip.

Showing a localized time was surprisingly complex. First I had
to add a function that decomposes a timestamp into h/m/s. Then
the QLocale time-string has to be stripped of the timezone.

Fixes #3469.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>

CHANGELOG.md

@@ -1,4 +1,4 @@
-
+- profile: show local time of cursor position in tooltip (fixes #3469).
 ---
 * Always add new entries at the very top of this file above other existing entries and this note.
 * Use this layout for new entries: `[Area]: [Details about the change] [reference thread / issue]`

core/membuffer.h

@@ -48,7 +48,7 @@ struct membuffer {
 
 #ifdef __cplusplus
 
-// In C++ code use this - it automatically frees the buffer, when going out of scope.
+// In C++ code use this - it automatically frees the buffer when going out of scope.
 struct membufferpp : public membuffer {
 	membufferpp();
 	~membufferpp();

core/profile.c

@@ -26,8 +26,6 @@
 
 //#define DEBUG_GAS 1
 
-#define MAX_PROFILE_DECO 7200
-
 extern int ascent_velocity(int depth, int avg_depth, int bottom_time);
 
 struct dive *current_dive = NULL;
@@ -59,7 +57,6 @@ static void dump_pi(struct plot_info *pi)
 #endif
 
 #define ROUND_UP(x, y) ((((x) + (y) - 1) / (y)) * (y))
-#define DIV_UP(x, y) (((x) + (y) - 1) / (y))
 
 /*
  * When showing dive profiles, we scale things to the
@@ -1328,176 +1325,6 @@ void create_plot_info_new(const struct dive *dive, const struct divecomputer *dc
 	analyze_plot_info(pi);
 }
 
-static void plot_string(const struct dive *d, const struct plot_info *pi, int idx, struct membuffer *b)
-{
-	int pressurevalue, mod, ead, end, eadd;
-	const char *depth_unit, *pressure_unit, *temp_unit, *vertical_speed_unit;
-	double depthvalue, tempvalue, speedvalue, sacvalue;
-	int decimals, cyl;
-	const char *unit;
-	const struct plot_data *entry = pi->entry + idx;
-
-	depthvalue = get_depth_units(entry->depth, NULL, &depth_unit);
-	put_format_loc(b, translate("gettextFromC", "@: %d:%02d\nD: %.1f%s\n"), FRACTION(entry->sec, 60), depthvalue, depth_unit);
-	for (cyl = 0; cyl < pi->nr_cylinders; cyl++) {
-		int mbar = get_plot_pressure(pi, idx, cyl);
-		if (!mbar)
-			continue;
-		struct gasmix mix = get_cylinder(d, cyl)->gasmix;
-		pressurevalue = get_pressure_units(mbar, &pressure_unit);
-		put_format_loc(b, translate("gettextFromC", "P: %d%s (%s)\n"), pressurevalue, pressure_unit, gasname(mix));
-	}
-	if (entry->temperature) {
-		tempvalue = get_temp_units(entry->temperature, &temp_unit);
-		put_format_loc(b, translate("gettextFromC", "T: %.1f%s\n"), tempvalue, temp_unit);
-	}
-	speedvalue = get_vertical_speed_units(abs(entry->speed), NULL, &vertical_speed_unit);
-	/* Ascending speeds are positive, descending are negative */
-	if (entry->speed > 0)
-		speedvalue *= -1;
-	put_format_loc(b, translate("gettextFromC", "V: %.1f%s\n"), speedvalue, vertical_speed_unit);
-	sacvalue = get_volume_units(entry->sac, &decimals, &unit);
-	if (entry->sac && prefs.show_sac)
-		put_format_loc(b, translate("gettextFromC", "SAC: %.*f%s/min\n"), decimals, sacvalue, unit);
-	if (entry->cns)
-		put_format_loc(b, translate("gettextFromC", "CNS: %u%%\n"), entry->cns);
-	if (prefs.pp_graphs.po2 && entry->pressures.o2 > 0) {
-		put_format_loc(b, translate("gettextFromC", "pO₂: %.2fbar\n"), entry->pressures.o2);
-		if (entry->scr_OC_pO2.mbar)
-			put_format_loc(b, translate("gettextFromC", "SCR ΔpO₂: %.2fbar\n"), entry->scr_OC_pO2.mbar/1000.0 - entry->pressures.o2);
-	}
-	if (prefs.pp_graphs.pn2 && entry->pressures.n2 > 0)
-		put_format_loc(b, translate("gettextFromC", "pN₂: %.2fbar\n"), entry->pressures.n2);
-	if (prefs.pp_graphs.phe && entry->pressures.he > 0)
-		put_format_loc(b, translate("gettextFromC", "pHe: %.2fbar\n"), entry->pressures.he);
-	if (prefs.mod && entry->mod > 0) {
-		mod = lrint(get_depth_units(entry->mod, NULL, &depth_unit));
-		put_format_loc(b, translate("gettextFromC", "MOD: %d%s\n"), mod, depth_unit);
-	}
-	eadd = lrint(get_depth_units(entry->eadd, NULL, &depth_unit));
-
-	if (prefs.ead) {
-		switch (pi->dive_type) {
-		case NITROX:
-			if (entry->ead > 0) {
-				ead = lrint(get_depth_units(entry->ead, NULL, &depth_unit));
-				put_format_loc(b, translate("gettextFromC", "EAD: %d%s\nEADD: %d%s / %.1fg/ℓ\n"), ead, depth_unit, eadd, depth_unit, entry->density);
-				break;
-			}
-		case TRIMIX:
-			if (entry->end > 0) {
-				end = lrint(get_depth_units(entry->end, NULL, &depth_unit));
-				put_format_loc(b, translate("gettextFromC", "END: %d%s\nEADD: %d%s / %.1fg/ℓ\n"), end, depth_unit, eadd, depth_unit, entry->density);
-				break;
-			}
-		case AIR:
-			if (entry->density > 0) {
-				put_format_loc(b, translate("gettextFromC", "Density: %.1fg/ℓ\n"), entry->density);
-			}
-		case FREEDIVING:
-			/* nothing */
-			break;
-		}
-	}
-	if (entry->stopdepth) {
-		depthvalue = get_depth_units(entry->stopdepth, NULL, &depth_unit);
-		if (entry->ndl > 0) {
-			/* this is a safety stop as we still have ndl */
-			if (entry->stoptime)
-				put_format_loc(b, translate("gettextFromC", "Safety stop: %umin @ %.0f%s\n"), DIV_UP(entry->stoptime, 60),
-					       depthvalue, depth_unit);
-			else
-				put_format_loc(b, translate("gettextFromC", "Safety stop: unknown time @ %.0f%s\n"),
-					       depthvalue, depth_unit);
-		} else {
-			/* actual deco stop */
-			if (entry->stoptime)
-				put_format_loc(b, translate("gettextFromC", "Deco: %umin @ %.0f%s\n"), DIV_UP(entry->stoptime, 60),
-					       depthvalue, depth_unit);
-			else
-				put_format_loc(b, translate("gettextFromC", "Deco: unknown time @ %.0f%s\n"),
-					       depthvalue, depth_unit);
-		}
-	} else if (entry->in_deco) {
-		put_string(b, translate("gettextFromC", "In deco\n"));
-	} else if (entry->ndl >= 0) {
-		put_format_loc(b, translate("gettextFromC", "NDL: %umin\n"), DIV_UP(entry->ndl, 60));
-	}
-	if (entry->tts)
-		put_format_loc(b, translate("gettextFromC", "TTS: %umin\n"), DIV_UP(entry->tts, 60));
-	if (entry->stopdepth_calc && entry->stoptime_calc) {
-		depthvalue = get_depth_units(entry->stopdepth_calc, NULL, &depth_unit);
-		put_format_loc(b, translate("gettextFromC", "Deco: %umin @ %.0f%s (calc)\n"), DIV_UP(entry->stoptime_calc, 60),
-				  depthvalue, depth_unit);
-	} else if (entry->in_deco_calc) {
-		/* This means that we have no NDL left,
-		 * and we have no deco stop,
-		 * so if we just accend to the surface slowly
-		 * (ascent_mm_per_step / ascent_s_per_step)
-		 * everything will be ok. */
-		put_string(b, translate("gettextFromC", "In deco (calc)\n"));
-	} else if (prefs.calcndltts && entry->ndl_calc != 0) {
-		if(entry->ndl_calc < MAX_PROFILE_DECO)
-			put_format_loc(b, translate("gettextFromC", "NDL: %umin (calc)\n"), DIV_UP(entry->ndl_calc, 60));
-		else
-			put_string(b, translate("gettextFromC", "NDL: >2h (calc)\n"));
-	}
-	if (entry->tts_calc) {
-		if (entry->tts_calc < MAX_PROFILE_DECO)
-			put_format_loc(b, translate("gettextFromC", "TTS: %umin (calc)\n"), DIV_UP(entry->tts_calc, 60));
-		else
-			put_string(b, translate("gettextFromC", "TTS: >2h (calc)\n"));
-	}
-	if (entry->rbt)
-		put_format_loc(b, translate("gettextFromC", "RBT: %umin\n"), DIV_UP(entry->rbt, 60));
-	if (prefs.decoinfo) {
-		if (entry->current_gf > 0.0)
-			put_format(b, translate("gettextFromC", "GF %d%%\n"), (int)(100.0 * entry->current_gf));
-		if (entry->surface_gf > 0.0)
-			put_format(b, translate("gettextFromC", "Surface GF %.0f%%\n"), entry->surface_gf);
-		if (entry->ceiling) {
-			depthvalue = get_depth_units(entry->ceiling, NULL, &depth_unit);
-			put_format_loc(b, translate("gettextFromC", "Calculated ceiling %.1f%s\n"), depthvalue, depth_unit);
-			if (prefs.calcalltissues) {
-				int k;
-				for (k = 0; k < 16; k++) {
-					if (entry->ceilings[k]) {
-						depthvalue = get_depth_units(entry->ceilings[k], NULL, &depth_unit);
-						put_format_loc(b, translate("gettextFromC", "Tissue %.0fmin: %.1f%s\n"), buehlmann_N2_t_halflife[k], depthvalue, depth_unit);
-					}
-				}
-			}
-		}
-	}
-	if (entry->icd_warning)
-		put_format(b, "%s", translate("gettextFromC", "ICD in leading tissue\n"));
-	if (entry->heartbeat && prefs.hrgraph)
-		put_format_loc(b, translate("gettextFromC", "heart rate: %d\n"), entry->heartbeat);
-	if (entry->bearing >= 0)
-		put_format_loc(b, translate("gettextFromC", "bearing: %d\n"), entry->bearing);
-	if (entry->running_sum) {
-		depthvalue = get_depth_units(entry->running_sum / entry->sec, NULL, &depth_unit);
-		put_format_loc(b, translate("gettextFromC", "mean depth to here %.1f%s\n"), depthvalue, depth_unit);
-	}
-
-	strip_mb(b);
-}
-
-int get_plot_details_new(const struct dive *d, const struct plot_info *pi, int time, struct membuffer *mb)
-{
-	int i;
-
-	/* The two first and the two last plot entries do not have useful data */
-	if (pi->nr <= 4)
-		return 0;
-	for (i = 2; i < pi->nr - 3; i++) {
-		if (pi->entry[i].sec >= time)
-			break;
-	}
-	plot_string(d, pi, i, mb);
-	return i;
-}
-
 /* Compare two plot_data entries and writes the results into a string */
 void compare_samples(const struct dive *d, const struct plot_info *pi, int idx1, int idx2, char *buf, int bufsize, bool sum)
 {

core/profile.h

@@ -95,12 +95,12 @@ struct plot_info {
 };
 
 #define AMB_PERCENTAGE 50.0
+#define MAX_PROFILE_DECO 7200
 
 extern void compare_samples(const struct dive *d, const struct plot_info *pi, int idx1, int idx2, char *buf, int bufsize, bool sum);
 extern void init_plot_info(struct plot_info *pi);
 /* when planner_dc is non-null, this is called in planner mode. */
 extern void create_plot_info_new(const struct dive *dive, const struct divecomputer *dc, struct plot_info *pi, const struct deco_state *planner_ds);
-extern int get_plot_details_new(const struct dive *d, const struct plot_info *pi, int time, struct membuffer *);
 extern void free_plot_info_data(struct plot_info *pi);
 
 /*

core/string-format.cpp

@@ -1,6 +1,9 @@
 #include "string-format.h"
+#include "deco.h"
 #include "dive.h"
 #include "divesite.h"
+#include "format.h"
+#include "profile.h"
 #include "qthelper.h"
 #include "subsurface-string.h"
 #include "trip.h"
@@ -300,3 +303,198 @@ QString formatTripTitleWithDives(const dive_trip *trip)
 	return formatTripTitle(trip) + " " +
 	       gettextFromC::tr("(%n dive(s))", "", nr);
 }
+
+static QString formatTimeOfDay(timestamp_t when)
+{
+	auto [h, m, s] = utc_time_of_day(when);
+	QLocale loc;
+	QString format = loc.timeFormat(QLocale::LongFormat);
+	// We don't want to show the timezone, as that currently is the
+	// timezone the application is run in, not the timezone of the dive!
+	format.replace("t", "");
+	QTime time(h, m, s);
+	return loc.toString(time, format.trimmed());
+}
+
+#define DIV_UP(x, y) (((x) + (y) - 1) / (y))
+#define translate(x,y) qPrintable(QCoreApplication::translate(x,y))
+
+static QString formatPlotInfoInternal(const dive *d, const plot_info *pi, int idx)
+{
+	QString res;
+	int pressurevalue, mod, ead, end, eadd;
+	const char *depth_unit, *pressure_unit, *temp_unit, *vertical_speed_unit;
+	double depthvalue, tempvalue, speedvalue, sacvalue;
+	int decimals, cyl;
+	const char *unit;
+	const struct plot_data *entry = pi->entry + idx;
+	timestamp_t when = d->when + entry->sec;
+
+	depthvalue = get_depth_units(entry->depth, NULL, &depth_unit);
+	res = qasprintf_loc("%s: %d:%02d (%s)\n", translate("gettextFromC", "@"), FRACTION(entry->sec, 60),
+						  qPrintable(formatTimeOfDay(when)));
+	res += qasprintf_loc("%s: %.1f%s\n", translate("gettextFromC", "D"), depthvalue, depth_unit);
+	for (cyl = 0; cyl < pi->nr_cylinders; cyl++) {
+		int mbar = get_plot_pressure(pi, idx, cyl);
+		if (!mbar)
+			continue;
+		struct gasmix mix = get_cylinder(d, cyl)->gasmix;
+		pressurevalue = get_pressure_units(mbar, &pressure_unit);
+		res += qasprintf_loc("%s: %d%s (%s)\n", translate("gettextFromC", "P"), pressurevalue, pressure_unit, gasname(mix));
+	}
+	if (entry->temperature) {
+		tempvalue = get_temp_units(entry->temperature, &temp_unit);
+		res += qasprintf_loc("%s: %.1f%s\n", translate("gettextFromC", "T"), tempvalue, temp_unit);
+	}
+	speedvalue = get_vertical_speed_units(abs(entry->speed), NULL, &vertical_speed_unit);
+	/* Ascending speeds are positive, descending are negative */
+	if (entry->speed > 0)
+		speedvalue *= -1;
+	res += qasprintf_loc("%s: %.1f%s\n", translate("gettextFromC", "V"), speedvalue, vertical_speed_unit);
+	sacvalue = get_volume_units(entry->sac, &decimals, &unit);
+	if (entry->sac && prefs.show_sac)
+		res += qasprintf_loc("%s: %.*f%s/%s\n", translate("gettextFromC", "SAC"), decimals, sacvalue, unit, translate("gettextFromC", "min"));
+	if (entry->cns)
+		res += qasprintf_loc("%s: %u%%\n", translate("gettextFromC", "CNS"), entry->cns);
+	if (prefs.pp_graphs.po2 && entry->pressures.o2 > 0) {
+		res += qasprintf_loc("%s: %.2f%s\n", translate("gettextFromC", "pO₂"), entry->pressures.o2, translate("gettextFromC", "bar"));
+		if (entry->scr_OC_pO2.mbar)
+			res += qasprintf_loc("%s: %.2f%s\n", translate("gettextFromC", "SCR ΔpO₂"), entry->scr_OC_pO2.mbar/1000.0 - entry->pressures.o2,
+					     translate("gettextFromC", "bar"));
+	}
+	if (prefs.pp_graphs.pn2 && entry->pressures.n2 > 0)
+		res += qasprintf_loc("%s: %.2f%s\n", translate("gettextFromC", "pN₂"), entry->pressures.n2, translate("gettextFromC", "bar"));
+	if (prefs.pp_graphs.phe && entry->pressures.he > 0)
+		res += qasprintf_loc("%s: %.2f%s\n", translate("gettextFromC", "pHe"), entry->pressures.he, translate("gettextFromC", "bar"));
+	if (prefs.mod && entry->mod > 0) {
+		mod = lrint(get_depth_units(entry->mod, NULL, &depth_unit));
+		res += qasprintf_loc("%s: %d%s\n", translate("gettextFromC", "MOD"), mod, depth_unit);
+	}
+	eadd = lrint(get_depth_units(entry->eadd, NULL, &depth_unit));
+
+	if (prefs.ead) {
+		switch (pi->dive_type) {
+		case plot_info::NITROX:
+			if (entry->ead > 0) {
+				ead = lrint(get_depth_units(entry->ead, NULL, &depth_unit));
+				res += qasprintf_loc("%s: %d%s\n", translate("gettextFromC", "EAD"), ead, depth_unit);
+				res += qasprintf_loc("%s: %d%s / %.1fg/ℓ\n", translate("gettextFromC", "EADO"), eadd, depth_unit, entry->density);
+				break;
+			}
+		case plot_info::TRIMIX:
+			if (entry->end > 0) {
+				end = lrint(get_depth_units(entry->end, NULL, &depth_unit));
+				res += qasprintf_loc("%s: %d%s\n", translate("gettextFromC", "END"), end, depth_unit);
+				res += qasprintf_loc("%s: %d%s / %.1fg/ℓ\n", translate("gettextFromC", "EADO"), eadd, depth_unit, entry->density);
+				break;
+			}
+		case plot_info::AIR:
+			if (entry->density > 0) {
+				res += qasprintf_loc("%s: %.1fg/ℓ\n", translate("gettextFromC", "Density"), entry->density);
+			}
+		case plot_info::FREEDIVING:
+			/* nothing */
+			break;
+		}
+	}
+	if (entry->stopdepth) {
+		depthvalue = get_depth_units(entry->stopdepth, NULL, &depth_unit);
+		if (entry->ndl > 0) {
+			/* this is a safety stop as we still have ndl */
+			if (entry->stoptime)
+				res += qasprintf_loc("%s: %u%s @ %.0f%s\n", translate("gettextFromC", "Safety stop"), DIV_UP(entry->stoptime, 60),
+						     translate("gettextFromC", "min"), depthvalue, depth_unit);
+			else
+				res += qasprintf_loc("%s: %s @ %.0f%s\n", translate("gettextFromC", "Safety stop"),
+						     translate("gettextFromC", "unknown time"), depthvalue, depth_unit);
+		} else {
+			/* actual deco stop */
+			if (entry->stoptime)
+				res += qasprintf_loc("%s: %u%s @ %.0f%s\n", translate("gettextFromC", "Deco"), DIV_UP(entry->stoptime, 60),
+						     translate("gettextFromC", "min"), depthvalue, depth_unit);
+			else
+				res += qasprintf_loc("%s: %s @ %.0f%s\n", translate("gettextFromC", "Deco"),
+						     translate("gettextFromC", "unknown time"), depthvalue, depth_unit);
+		}
+	} else if (entry->in_deco) {
+		res += gettextFromC::tr("In deco\n");
+	} else if (entry->ndl >= 0) {
+		res += qasprintf_loc("%s: %u%s\n", translate("gettextFromC", "NDL"), DIV_UP(entry->ndl, 60), translate("gettextFromC", "min"));
+	}
+	if (entry->tts)
+		res += qasprintf_loc("%s: %u%s\n", translate("gettextFromC", "TTS"), DIV_UP(entry->tts, 60), translate("gettextFromC", "min"));
+	if (entry->stopdepth_calc && entry->stoptime_calc) {
+		depthvalue = get_depth_units(entry->stopdepth_calc, NULL, &depth_unit);
+		res += qasprintf_loc("%s: %u%s @ %.0f%s (%s)\n", translate("gettextFromC", "Deco"), DIV_UP(entry->stoptime_calc, 60),
+				     translate("gettextFromC", "min"), depthvalue, depth_unit, translate("gettextFromC", "calc"));
+	} else if (entry->in_deco_calc) {
+		/* This means that we have no NDL left,
+		 * and we have no deco stop,
+		 * so if we just accend to the surface slowly
+		 * (ascent_mm_per_step / ascent_s_per_step)
+		 * everything will be ok. */
+		res += gettextFromC::tr("In deco (calc)\n");
+	} else if (prefs.calcndltts && entry->ndl_calc != 0) {
+		if(entry->ndl_calc < MAX_PROFILE_DECO)
+			res += qasprintf_loc("%s: %u%s (%s)\n", translate("gettextFromC", "NDL"), DIV_UP(entry->ndl_calc, 60),
+					    translate("gettextFromC", "min"), translate("gettextFromC", "calc"));
+		else
+			res += gettextFromC::tr("NDL: >2h (calc)\n");
+	}
+	if (entry->tts_calc) {
+		if (entry->tts_calc < MAX_PROFILE_DECO)
+			res += qasprintf_loc("%s: %u%s (%s)\n", translate("gettextFromC", "TTS"), DIV_UP(entry->tts_calc, 60),
+					    translate("gettextFromC", "min"), translate("gettextFromC", "calc"));
+		else
+			res += gettextFromC::tr("TTS: >2h (calc)\n");
+	}
+	if (entry->rbt)
+		res += qasprintf_loc("%s: %u%s\n", translate("gettextFromC", "RBT"), DIV_UP(entry->rbt, 60), translate("gettextFromC", "min"));
+	if (prefs.decoinfo) {
+		if (entry->current_gf > 0.0)
+			res += qasprintf_loc("%s %d%%\n", translate("gettextFromC", "GF"), (int)(100.0 * entry->current_gf));
+		if (entry->surface_gf > 0.0)
+			res += qasprintf_loc("%s %.0f%%\n", translate("gettextFromC", "Surface GF"), entry->surface_gf);
+		if (entry->ceiling) {
+			depthvalue = get_depth_units(entry->ceiling, NULL, &depth_unit);
+			res += qasprintf_loc("%s %.1f%s\n", translate("gettextFromC", "Calculated ceiling"), depthvalue, depth_unit);
+			if (prefs.calcalltissues) {
+				for (int k = 0; k < 16; k++) {
+					if (entry->ceilings[k]) {
+						depthvalue = get_depth_units(entry->ceilings[k], NULL, &depth_unit);
+						res += qasprintf_loc("%s %.0f%s: %.1f%s\n", translate("gettextFromC", "Tissue"),
+								     buehlmann_N2_t_halflife[k], translate("gettextFromC", "min"),
+								     depthvalue, depth_unit);
+					}
+				}
+			}
+		}
+	}
+	if (entry->icd_warning)
+		res += gettextFromC::tr("ICD in leading tissue\n");
+	if (entry->heartbeat && prefs.hrgraph)
+		res += qasprintf_loc("%s: %d\n", translate("gettextFromC", "heart rate"), entry->heartbeat);
+	if (entry->bearing >= 0)
+		res += qasprintf_loc("%s: %d\n", translate("gettextFromC", "bearing"), entry->bearing);
+	if (entry->running_sum) {
+		depthvalue = get_depth_units(entry->running_sum / entry->sec, NULL, &depth_unit);
+		res += qasprintf_loc("%s %.1f%s\n", translate("gettextFromC", "mean depth to here"), depthvalue, depth_unit);
+	}
+
+	return res;
+}
+
+std::pair<QString, int> formatProfileInfo(const struct dive *d, const struct plot_info *pi, int time)
+{
+	int i;
+
+	/* The two first and the two last plot entries do not have useful data */
+	if (pi->nr <= 4)
+		return std::make_pair(QString(), 0);
+	for (i = 2; i < pi->nr - 3; i++) {
+		if (pi->entry[i].sec >= time)
+			break;
+	}
+	QString res = formatPlotInfoInternal(d, pi, i);
+	return std::make_pair(res, i);
+}

core/string-format.h

@@ -3,10 +3,12 @@
 #ifndef STRING_FORMAT_H
 #define STRING_FORMAT_H
 
+#include <utility>
 #include <QStringList>
 
 struct dive;
 struct dive_trip;
+struct plot_info;
 
 QString formatSac(const dive *d);
 QString formatNotes(const dive *d);
@@ -29,5 +31,6 @@ QString formatDiveDateTime(const dive *d);
 QString formatDayOfWeek(int day);
 QString formatTripTitle(const dive_trip *trip);
 QString formatTripTitleWithDives(const dive_trip *trip);
+std::pair<QString, int> formatProfileInfo(const dive *d, const plot_info *pi, int time);
 
 #endif

core/subsurface-time.h

@@ -9,10 +9,15 @@
 extern "C" {
 #endif
 
+struct time_of_day {
+	int h, m, s;
+};
+
 extern timestamp_t utc_mktime(const struct tm *tm);
 extern void utc_mkdate(timestamp_t, struct tm *tm);
 extern int utc_year(timestamp_t timestamp);
 extern int utc_weekday(timestamp_t timestamp);
+extern struct time_of_day utc_time_of_day(timestamp_t timestamp);
 
 /* parse and format date times of the form YYYY-MM-DD hh:mm:ss */
 extern timestamp_t parse_datetime(const char *s); /* returns 0 on error */

core/time.c

@@ -99,6 +99,37 @@ void utc_mkdate(timestamp_t timestamp, struct tm *tm)
 	tm->tm_mon = m;
 }
 
+/*
+ * Convert 64-bit timestamp to time of day (split into h, m, s)
+ *
+ * On 32-bit machines, only do 64-bit arithmetic for the seconds
+ * part, after that we do everything in 'long'. 64-bit divides
+ * are unnecessary once you're counting minutes (32-bit minutes:
+ * 8000+ years).
+ */
+struct time_of_day utc_time_of_day(timestamp_t timestamp)
+{
+	struct time_of_day res = { 0 };
+	unsigned long val;
+
+	// Midnight at Jan 1, 1970 means "no date"
+	if (!timestamp)
+		return res;
+
+	/* Convert to seconds since 1900 */
+	timestamp += EPOCH_OFFSET;
+
+	/* minutes since 1900 */
+	res.s = timestamp % 60;
+	val = timestamp / 60;
+
+	res.m = val % 60;
+	val /= 60;
+	res.h = val % 24;
+
+	return res;
+}
+
 timestamp_t utc_mktime(const struct tm *tm)
 {
 	static const int mdays[] = {

profile-widget/divetooltipitem.cpp

@@ -1,44 +1,37 @@
 // SPDX-License-Identifier: GPL-2.0
 #include "profile-widget/divetooltipitem.h"
 #include "profile-widget/divecartesianaxis.h"
-#include "core/membuffer.h"
 #include "core/metrics.h"
 #include "core/settings/qPrefDisplay.h"
+#include "core/qthelper.h"
+#include "core/string-format.h"
 #include <QPropertyAnimation>
 #include <QGraphicsView>
-#include "core/qthelper.h"
 
-void ToolTipItem::addToolTip(const QString &toolTip, const QPixmap &pixmap)
+ToolTipItem::ToolTip ToolTipItem::makeToolTip(const QString &toolTip, const QPixmap &pixmap)
 {
 	const IconMetrics &iconMetrics = defaultIconMetrics();
 
-	QGraphicsPixmapItem *iconItem = 0;
 	double yValue = title->boundingRect().height() + iconMetrics.spacing;
-	Q_FOREACH (ToolTip t, toolTips) {
-		yValue += t.second->boundingRect().height();
-	}
-	if (entryToolTip.second) {
-		yValue += entryToolTip.second->boundingRect().height();
-	}
-	iconItem = new QGraphicsPixmapItem(this);
+	for (auto &[pixmap, text]: toolTips)
+		yValue += text->boundingRect().height();
+	if (entryToolTip.text)
+		yValue += entryToolTip.text->boundingRect().height();
+	std::unique_ptr<QGraphicsPixmapItem> iconItem = std::make_unique<QGraphicsPixmapItem>(this);
 	if (!pixmap.isNull())
 		iconItem->setPixmap(pixmap);
 	const int sp2 = iconMetrics.spacing * 2;
 	iconItem->setPos(sp2, yValue);
 
-	QGraphicsSimpleTextItem *textItem = new QGraphicsSimpleTextItem(toolTip, this);
+	auto textItem = std::make_unique<QGraphicsSimpleTextItem>(toolTip, this);
 	textItem->setPos(sp2 + iconMetrics.sz_small + sp2, yValue);
 	textItem->setBrush(QBrush(Qt::white));
 	textItem->setFlag(ItemIgnoresTransformations);
-	toolTips.push_back(qMakePair(iconItem, textItem));
+	return { std::move(iconItem), std::move(textItem) };
 }
 
 void ToolTipItem::clear()
 {
-	Q_FOREACH (ToolTip t, toolTips) {
-		delete t.first;
-		delete t.second;
-	}
 	toolTips.clear();
 }
 
@@ -77,19 +70,17 @@ void ToolTipItem::expand()
 	const IconMetrics &iconMetrics = defaultIconMetrics();
 
 	double width = 0, height = title->boundingRect().height() + iconMetrics.spacing;
-	Q_FOREACH (const ToolTip &t, toolTips) {
-		QRectF sRect = t.second->boundingRect();
+	for (const auto &[pixmap, text]: toolTips) {
+		QRectF sRect = text->boundingRect();
 		if (sRect.width() > width)
 			width = sRect.width();
 		height += sRect.height();
 	}
 
-	if (entryToolTip.first) {
-		QRectF sRect = entryToolTip.second->boundingRect();
-		if (sRect.width() > width)
-			width = sRect.width();
-		height += sRect.height();
-	}
+	QRectF sRect = entryToolTip.text->boundingRect();
+	if (sRect.width() > width)
+		width = sRect.width();
+	height += sRect.height();
 
 	const int sp2 = iconMetrics.spacing * 2;
 	// pixmap left padding, icon, pixmap right padding, right padding
@@ -101,13 +92,9 @@ void ToolTipItem::expand()
 	if (width < title->boundingRect().width() + sp2)
 		width = title->boundingRect().width() + sp2;
 	// clip the height
-	if (entryToolTip.first) {
-		const int minH = lrint(entryToolTip.first->y() + entryToolTip.first->pixmap().height() + sp2);
-		if (height < minH)
-			height = minH;
-	} else if (height < iconMetrics.sz_small) {
-		height = iconMetrics.sz_small;
-	}
+	const int minH = lrint(entryToolTip.pixmap->y() + entryToolTip.pixmap->pixmap().height() + sp2);
+	if (height < minH)
+		height = minH;
 
 	nextRectangle.setWidth(width);
 	nextRectangle.setHeight(height);
@@ -136,8 +123,6 @@ ToolTipItem::ToolTipItem(QGraphicsItem *parent) : RoundRectItem(8.0, parent),
 	lastTime(-1)
 {
 	clearPlotInfo();
-	entryToolTip.first = NULL;
-	entryToolTip.second = NULL;
 	setFlags(ItemIgnoresTransformations | ItemIsMovable | ItemClipsChildrenToShape);
 
 	QColor c = QColor(Qt::black);
@@ -146,9 +131,7 @@ ToolTipItem::ToolTipItem(QGraphicsItem *parent) : RoundRectItem(8.0, parent),
 
 	setZValue(99);
 
-	addToolTip(QString(), QPixmap(16,60));
-	entryToolTip = toolTips.first();
-	toolTips.clear();
+	entryToolTip = makeToolTip(QString(), QPixmap(16,60));
 
 	title->setFlag(ItemIgnoresTransformations);
 	title->setPen(QPen(Qt::white, 1));
@@ -220,8 +203,6 @@ void ToolTipItem::setTimeAxis(DiveCartesianAxis *axis)
 
 void ToolTipItem::refresh(const dive *d, const QPointF &pos, bool inPlanner)
 {
-	struct membufferpp mb;
-
 	if(refreshTime.elapsed() < 40)
 		return;
 	refreshTime.start();
@@ -231,7 +212,7 @@ void ToolTipItem::refresh(const dive *d, const QPointF &pos, bool inPlanner)
 	lastTime = time;
 	clear();
 
-	int idx = get_plot_details_new(d, &pInfo, time, &mb);
+	auto [text, idx] = formatProfileInfo(d, &pInfo, time);
 
 	tissues.fill();
 	painter.setPen(QColor(0, 0, 0, 0));
@@ -251,15 +232,15 @@ void ToolTipItem::refresh(const dive *d, const QPointF &pos, bool inPlanner)
 		painter.setPen(QColor(0, 0, 0, 127));
 		for (int i = 0; i < 16; i++)
 			painter.drawLine(i, 60, i, 60 - entry->percentages[i] / 2);
-		entryToolTip.second->setText(QString::fromUtf8(mb.buffer, mb.len));
+		entryToolTip.text->setText(text);
 	}
-	entryToolTip.first->setPixmap(tissues);
+	entryToolTip.pixmap->setPixmap(tissues);
 
 	const auto l = scene()->items(pos, Qt::IntersectsItemBoundingRect, Qt::DescendingOrder,
 			scene()->views().first()->transform());
 	for (QGraphicsItem *item: l) {
 		if (!item->toolTip().isEmpty())
-			addToolTip(item->toolTip(), QPixmap());
+			toolTips.push_back(makeToolTip(item->toolTip(), QPixmap()));
 	}
 	expand();
 }

profile-widget/divetooltipitem.h

@@ -2,12 +2,12 @@
 #ifndef DIVETOOLTIPITEM_H
 #define DIVETOOLTIPITEM_H
 
-#include <QVector>
-#include <QPair>
 #include <QRectF>
 #include <QIcon>
 #include <QElapsedTimer>
 #include <QPainter>
+#include <memory>
+#include <vector>
 #include "backend-shared/roundrectitem.h"
 #include "core/profile.h"
 
@@ -45,8 +45,11 @@ slots:
 	void setRect(const QRectF &rect);
 
 private:
-	typedef QPair<QGraphicsPixmapItem *, QGraphicsSimpleTextItem *> ToolTip;
-	QVector<ToolTip> toolTips;
+	struct ToolTip {
+		std::unique_ptr<QGraphicsPixmapItem> pixmap;
+		std::unique_ptr<QGraphicsSimpleTextItem> text;
+	};
+	std::vector<ToolTip> toolTips;
 	ToolTip entryToolTip;
 	QGraphicsSimpleTextItem *title;
 	Status status;
@@ -60,7 +63,7 @@ private:
 	QElapsedTimer refreshTime;
 	QList<QGraphicsItem*> oldSelection;
 
-	void addToolTip(const QString &toolTip, const QPixmap &pixmap);
+	ToolTip makeToolTip(const QString &toolTip, const QPixmap &pixmap);
 	void collapse();
 	void expand();
 	void clear();