Create a version of create_graph_info that doesn't depend on GC.

This version of the create plot info is the same as before, with the
difference that it doesn't depends on the gc.
Also fixed a crash.

The Pressure Index, Information and interpolated seems wrong,
I'm getting only zeroes.

Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

4 files changed, 21 insertions, 1 deletions

diff --git a/profile.c b/profile.c
index 23903d99f..a24cd1682 100644
--- a/profile.c
+++ b/profile.c
@@ -1300,6 +1300,24 @@ struct plot_info *create_plot_info(struct dive *dive, struct divecomputer *dc, s
 	return analyze_plot_info(pi);
 }
 
+void create_plot_info_new(struct dive *dive, struct divecomputer *dc, struct plot_info *pi)
+{
+	if (prefs.profile_calc_ceiling)             /* reset deco information to start the calculation */
+		init_decompression(dive);
+	if (last_pi_entry)                          /* Create the new plot data */
+		free((void *)last_pi_entry);
+	last_pi_entry = populate_plot_entries(dive, dc, pi);
+	check_gas_change_events(dive, dc, pi);      /* Populate the gas index from the gas change events */
+	setup_gas_sensor_pressure(dive, dc, pi);    /* Try to populate our gas pressure knowledge */
+	populate_pressure_information(dive, dc, pi);/* .. calculate missing pressure entries */
+	calculate_sac(dive, pi);                    /* Calculate sac */
+	if (prefs.profile_calc_ceiling)             /* Then, calculate deco information */
+		calculate_deco_information(dive, dc, pi, false);
+	calculate_gas_information(dive, pi);       /* And finaly calculate gas partial pressures */
+	pi->meandepth = dive->dc.meandepth.mm;
+	analyze_plot_info(pi);
+}
+
 /* make sure you pass this the FIRST dc - it just walks the list */
 static int nr_dcs(struct divecomputer *main)
 {
diff --git a/profile.h b/profile.h
index daf402d52..94b32a34b 100644
--- a/profile.h
+++ b/profile.h
@@ -52,6 +52,7 @@ int get_cylinder_pressure_range(struct graphics_context *gc);
 void compare_samples(struct plot_data *e1, struct plot_data *e2, char *buf, int bufsize, int sum);
 struct plot_data *populate_plot_entries(struct dive *dive, struct divecomputer *dc, struct plot_info *pi);
 struct plot_info *analyze_plot_info(struct plot_info *pi);
+void create_plot_info_new(struct dive *dive, struct divecomputer *dc, struct plot_info *pi);
 
 struct ev_select {
 	char *ev_name;
diff --git a/qt-ui/profile/divecartesianaxis.cpp b/qt-ui/profile/divecartesianaxis.cpp
index 3ab4a4e26..043f193ea 100644
--- a/qt-ui/profile/divecartesianaxis.cpp
+++ b/qt-ui/profile/divecartesianaxis.cpp
@@ -51,7 +51,7 @@ void DiveCartesianAxis::updateTicks()
 	double currValue = min;
 
 	// Remove the uneeded Ticks / Texts.
-	if (ticks.size() > steps) {
+	if (!ticks.isEmpty() && ticks.size() > steps) {
 		while (ticks.size() > steps) {
 			DiveLineItem *removedLine = ticks.takeLast();
 			removedLine->animatedHide();
diff --git a/qt-ui/profile/profilewidget2.cpp b/qt-ui/profile/profilewidget2.cpp
index d3d4ec9da..3970e6f3a 100644
--- a/qt-ui/profile/profilewidget2.cpp
+++ b/qt-ui/profile/profilewidget2.cpp
@@ -277,6 +277,7 @@ void ProfileWidget2::plotDives(QList<dive*> dives)
 	 * shown.
 	 */
 	struct plot_info pInfo = calculate_max_limits_new(d, currentdc);
+	create_plot_info_new(d, currentdc, &pInfo);
 	int maxtime = get_maxtime(&pInfo);
 	int maxdepth = get_maxdepth(&pInfo);