Planner: implement sane way to set the start time of the planned dive

This uses the same widgets we use on the maintab.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

qt-ui/diveplanner.cpp

@@ -82,6 +82,22 @@ void DivePlannerPointsModel::createSimpleDive()
 	}
 }
 
+void DivePlannerPointsModel::setupStartTime()
+{
+	// if the latest dive is in the future, then start an hour after it ends
+	// otherwise start an hour from now
+	startTime = QDateTime::currentDateTimeUtc().addSecs(3600 + gettimezoneoffset());
+	if (dive_table.nr) {
+		struct dive *d = get_dive(dive_table.nr - 1);
+		time_t ends = d->when + d->duration.seconds;
+		time_t diff = ends - startTime.toTime_t();
+		if (diff > 0) {
+			startTime = startTime.addSecs(diff + 3600);
+		}
+	}
+	emit startTimeChanged(startTime);
+}
+
 void DivePlannerPointsModel::loadFromDive(dive *d)
 {
 	// We need to make a copy, because as soon as the model is modified, it will
@@ -276,8 +292,10 @@ DivePlannerWidget::DivePlannerWidget(QWidget *parent, Qt::WindowFlags f) : QWidg
 
 	ui.tableWidget->setBtnToolTip(tr("add dive data point"));
 	connect(ui.startTime, SIGNAL(timeChanged(QTime)), plannerModel, SLOT(setStartTime(QTime)));
+	connect(ui.dateEdit, SIGNAL(dateChanged(QDate)), plannerModel, SLOT(setStartDate(QDate)));
 	connect(ui.ATMPressure, SIGNAL(valueChanged(int)), this, SLOT(atmPressureChanged(int)));
 	connect(ui.atmHeight, SIGNAL(valueChanged(int)), this, SLOT(heightChanged(int)));
+	connect(DivePlannerPointsModel::instance(), SIGNAL(startTimeChanged(QDateTime)), this, SLOT(setupStartTime(QDateTime)));
 
 	// Creating (and canceling) the plan
 	connect(ui.buttonBox, SIGNAL(accepted()), plannerModel, SLOT(createPlan()));
@@ -286,7 +304,6 @@ DivePlannerWidget::DivePlannerWidget(QWidget *parent, Qt::WindowFlags f) : QWidg
 	connect(closeKey, SIGNAL(activated()), plannerModel, SLOT(cancelPlan()));
 
 	/* set defaults. */
-	ui.startTime->setTime(QTime(1, 0));
 	ui.ATMPressure->setValue(1013);
 	ui.atmHeight->setValue(0);
 
@@ -294,6 +311,12 @@ DivePlannerWidget::DivePlannerWidget(QWidget *parent, Qt::WindowFlags f) : QWidg
 	setMinimumHeight(0);
 }
 
+void DivePlannerWidget::setupStartTime(QDateTime startTime)
+{
+	ui.startTime->setTime(startTime.time());
+	ui.dateEdit->setDate(startTime.date());
+}
+
 void DivePlannerWidget::settingsChanged()
 {
 	// right now there's nothing special we do when settings change
@@ -595,6 +618,7 @@ DivePlannerPointsModel::DivePlannerPointsModel(QObject *parent) : QAbstractTable
 {
 	memset(&diveplan, 0, sizeof(diveplan));
 	memset(&backupDive, 0, sizeof(backupDive));
+	startTime = QDateTime::currentDateTimeUtc();
 }
 
 DivePlannerPointsModel *DivePlannerPointsModel::instance()
@@ -690,9 +714,17 @@ void DivePlannerPointsModel::setDropStoneMode(bool value)
 	emit dataChanged(createIndex(0, 0), createIndex(rowCount() - 1, COLUMNS - 1));
 }
 
+void DivePlannerPointsModel::setStartDate(const QDate &date)
+{
+	startTime.setDate(date);
+	diveplan.when = startTime.toTime_t();
+	emit dataChanged(createIndex(0, 0), createIndex(rowCount() - 1, COLUMNS - 1));
+}
+
 void DivePlannerPointsModel::setStartTime(const QTime &t)
 {
-	diveplan.when = (t.msec() + QDateTime::currentMSecsSinceEpoch()) / 1000 - gettimezoneoffset();
+	startTime.setTime(t);
+	diveplan.when = startTime.toTime_t();
 	emit dataChanged(createIndex(0, 0), createIndex(rowCount() - 1, COLUMNS - 1));
 }
 

qt-ui/diveplanner.h

@@ -3,6 +3,7 @@
 
 #include <QGraphicsPathItem>
 #include <QAbstractTableModel>
+#include <QDateTime>
 
 #include "dive.h"
 
@@ -37,6 +38,7 @@ public:
 	void setPlanMode(Mode mode);
 	bool isPlanner();
 	void createSimpleDive();
+	void setupStartTime();
 	void clear();
 	Mode currentMode() const;
 	bool setRecalc(bool recalc);
@@ -69,6 +71,7 @@ slots:
 	void setBottomSac(int sac);
 	void setDecoSac(int sac);
 	void setStartTime(const QTime &t);
+	void setStartDate(const QDate &date);
 	void setLastStop6m(bool value);
 	void setDropStoneMode(bool value);
 	void setVerbatim(bool value);
@@ -88,6 +91,7 @@ signals:
 	void planCreated();
 	void planCanceled();
 	void cylinderModelEdited();
+	void startTimeChanged(QDateTime);
 
 private:
 	explicit DivePlannerPointsModel(QObject *parent = 0);
@@ -103,6 +107,7 @@ private:
 	struct dive *stagingDive;
 	QVector<QPair<int, int> > oldGases;
 	bool drop_stone_mode;
+	QDateTime startTime;
 };
 
 class DiveHandler : public QObject, public QGraphicsEllipseItem {
@@ -129,9 +134,9 @@ class DivePlannerWidget : public QWidget {
 	Q_OBJECT
 public:
 	explicit DivePlannerWidget(QWidget *parent = 0, Qt::WindowFlags f = 0);
-
 public
 slots:
+	void setupStartTime(QDateTime startTime);
 	void settingsChanged();
 	void atmPressureChanged(const int pressure);
 	void heightChanged(const int height);

qt-ui/mainwindow.cpp

@@ -480,6 +480,7 @@ void MainWindow::on_actionDivePlanner_triggered()
 	DivePlannerPointsModel::instance()->setupCylinders();
 
 	// create a simple starting dive, using the first gas from the just copied cylidners
+	DivePlannerPointsModel::instance()->setupStartTime();
 	createFakeDiveForAddAndPlan();
 	DivePlannerPointsModel::instance()->createSimpleDive();