Merge branch 'add-info-stats-page' of git://github.com/dirkhh/subsurface

* 'add-info-stats-page' of git://github.com/dirkhh/subsurface:
  Add Info & Stats page to the notebook
  Even more places with pressure and volume conversions
  Further cleanup of pressure and volume conversions
  Use unit functions to get column headers, add unit function for pressure
  More consistency improvements
  Add new helper function to get temperature and unit

1 files changed, 23 insertions, 21 deletions

diff --git a/equipment.c b/equipment.c
index 12f39ae3f..c7a683b89 100644
--- a/equipment.c
+++ b/equipment.c
@@ -49,18 +49,19 @@ struct cylinder_widget {
 	GtkWidget *o2, *gasmix_button;
 };
 
+/* we want bar - so let's not use our unit functions */
 static int convert_pressure(int mbar, double *p)
 {
 	int decimals = 1;
 	double pressure;
 
-	pressure = mbar / 1000.0;
-	if (mbar) {
-		if (output_units.pressure == PSI) {
-			pressure *= 14.5037738;	/* Bar to PSI */
-			decimals = 0;
-		}
+	if (output_units.pressure == PSI) {
+		pressure = mbar_to_PSI(mbar);
+		decimals = 0;
+	} else {
+		pressure = mbar / 1000.0;
 	}
+
 	*p = pressure;
 	return decimals;
 }
@@ -70,17 +71,18 @@ static int convert_volume_pressure(int ml, int mbar, double *v, double *p)
 	int decimals = 1;
 	double volume, pressure;
 
-	volume = ml / 1000.0;
-	pressure = mbar / 1000.0;
 	if (mbar) {
 		if (output_units.volume == CUFT) {
-			volume /= 28.3168466;	/* Liters to cuft */
-			volume *= pressure / 1.01325;
-		}
+			volume = ml_to_cuft(ml);
+			volume *= bar_to_atm(mbar / 1000.0);
+		} else
+			volume = ml / 1000.0;
+
 		if (output_units.pressure == PSI) {
-			pressure *= 14.5037738;	/* Bar to PSI */
+			pressure = mbar_to_PSI(mbar);
 			decimals = 0;
-		}
+		} else
+			pressure = mbar / 1000.0;
 	}
 	*v = volume;
 	*p = pressure;
@@ -352,14 +354,14 @@ static void fill_cylinder_info(struct cylinder_widget *cylinder, cylinder_t *cyl
 	int mbar, ml;
 
 	if (output_units.pressure == PSI) {
-		pressure /= 14.5037738;
-		start /= 14.5037738;
-		end /= 14.5037738;
+		pressure = psi_to_bar(pressure);
+		start = psi_to_bar(start);
+		end = psi_to_bar(end);
 	}
 
 	if (pressure && output_units.volume == CUFT) {
-		volume *= 28.3168466;	/* CUFT to liter */
-		volume /= pressure / 1.01325;
+		volume = cuft_to_l(volume);
+		volume /= bar_to_atm(pressure);
 	}
 
 	ml = volume * 1000 + 0.5;
@@ -461,9 +463,9 @@ static void fill_tank_list(GtkListStore *store)
 
 		/* Is it in cuft and psi? */
 		if (psi) {
-			double bar = 0.0689475729 * psi;
-			double airvolume = 28316.8466 * size;
-			double atm = bar / 1.01325;
+			double bar = psi_to_bar(psi);
+			double airvolume = cuft_to_l(size) * 1000.0;
+			double atm = bar_to_atm(bar);
 
 			ml = airvolume / atm + 0.5;
 			mbar = bar*1000 + 0.5;