undo: implement set point change undo command

This is a simple copy of the other add-event commands. It could
be made more friendly by stating the pO2 value in the text.

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

commands/command.cpp

@@ -339,4 +339,9 @@ void addEventDivemodeSwitch(struct dive *d, int dcNr, int seconds, int divemode)
 	execute(new AddEventDivemodeSwitch(d, dcNr, seconds, divemode));
 }
 
+void addEventSetpointChange(struct dive *d, int dcNr, int seconds, pressure_t pO2)
+{
+	execute(new AddEventSetpointChange(d, dcNr, seconds, pO2));
+}
+
 } // namespace Command

commands/command.h

@@ -108,6 +108,7 @@ void editTripNotes(dive_trip *trip, const QString &s);
 
 void addEventBookmark(struct dive *d, int dcNr, int seconds);
 void addEventDivemodeSwitch(struct dive *d, int dcNr, int seconds, int divemode);
+void addEventSetpointChange(struct dive *d, int dcNr, int seconds, pressure_t pO2);
 
 } // namespace Command
 

commands/command_event.cpp

@@ -49,4 +49,10 @@ AddEventDivemodeSwitch::AddEventDivemodeSwitch(struct dive *d, int dcNr, int sec
 	setText(tr("Add dive mode switch to %1").arg(gettextFromC::tr(divemode_text_ui[divemode])));
 }
 
+AddEventSetpointChange::AddEventSetpointChange(struct dive *d, int dcNr, int seconds, pressure_t pO2) :
+	AddEventBase(d, dcNr, create_event(seconds, SAMPLE_EVENT_PO2, 0, pO2.mbar, QT_TRANSLATE_NOOP("gettextFromC", "SP change")))
+{
+	setText(tr("Add set point change")); // TODO: format pO2 value in bar or psi.
+}
+
 } // namespace Command

commands/command_event.h

@@ -44,6 +44,11 @@ public:
 	AddEventDivemodeSwitch(struct dive *d, int dcNr, int seconds, int divemode);
 };
 
+class AddEventSetpointChange : public AddEventBase {
+public:
+	AddEventSetpointChange(struct dive *d, int dcNr, int seconds, pressure_t pO2);
+};
+
 } // namespace Command
 
 #endif // COMMAND_EVENT_H