Implemented a minimal set time dialog for Qt4 front-end.

src/celestia.pro

@@ -292,7 +292,8 @@ QTAPP_SOURCES = \
 	celestia/qt/qttimetoolbar.cpp \
 	celestia/qt/qtcelestiaactions.cpp \
 	celestia/qt/qtinfopanel.cpp \
-	celestia/qt/qteventfinder.cpp
+	celestia/qt/qteventfinder.cpp \
+	celestia/qt/qtsettimedialog.cpp
 
 QTAPP_HEADERS = \
 	celestia/qt/qtappwin.h \
@@ -306,7 +307,8 @@ QTAPP_HEADERS = \
 	celestia/qt/qttimetoolbar.h \	
 	celestia/qt/qtcelestiaactions.h \
 	celestia/qt/qtinfopanel.h \
-	celestia/qt/qteventfinder.h
+	celestia/qt/qteventfinder.h \
+	celestia/qt/qtsettimedialog.h
 
 SOURCES = \
 	$$UTIL_SOURCES \

src/celestia/qt/qtappwin.cpp

@@ -11,6 +11,7 @@
 // of the License, or (at your option) any later version.
 
 #include <QHBoxLayout>
+#include <QVBoxLayout>
 #include <QPushButton>
 #include <QTimer>
 #include <QMenu>
@@ -23,6 +24,7 @@
 #include <QCloseEvent>
 #include <QDir>
 #include <QMessageBox>
+#include <QDateTimeEdit>
 #include <vector>
 #include <string>
 #include "qtappwin.h"
@@ -36,6 +38,7 @@
 #include "qtcelestiaactions.h"
 #include "qtinfopanel.h"
 #include "qteventfinder.h"
+#include "qtsettimedialog.h"
 //#include "qtvideocapturedialog.h"
 #include "celestia/scriptmenu.h"
 
@@ -454,6 +457,22 @@ void CelestiaAppWindow::slotOpenScript()
 }
 
 
+void CelestiaAppWindow::slotShowTimeDialog()
+{
+    SetTimeDialog* timeDialog = new SetTimeDialog(appCore->getSimulation()->getTime(),
+                                                  this);
+    connect(timeDialog, SIGNAL(setTimeTriggered(double)), this, SLOT(slotSetTime(double)));
+
+    timeDialog->exec();
+}
+
+
+void CelestiaAppWindow::slotSetTime(double tdb)
+{
+    appCore->getSimulation()->setTime(tdb);
+}
+
+
 void CelestiaAppWindow::createActions()
 {
 }
@@ -514,11 +533,14 @@ void CelestiaAppWindow::createMenus()
     connect(gotoAct, SIGNAL(triggered()), this, SLOT(gotoSelection()));
     navMenu->addAction(gotoAct);
 
-    //navMenu->addAction();
 
     /****** Time menu ******/
     timeMenu = menuBar()->addMenu(tr("&Time"));
-    //timeMenu->addAction();
+
+    QAction* setTimeAct = new QAction(tr("Set &time"), this);
+    connect(setTimeAct, SIGNAL(triggered()), this, SLOT(slotShowTimeDialog()));
+    timeMenu->addAction(setTimeAct);
+
 
     /****** View menu ******/
     viewMenu = menuBar()->addMenu(tr("&View"));

src/celestia/qt/qtappwin.h

@@ -72,6 +72,10 @@ class CelestiaAppWindow : public QMainWindow
 
     void slotOpenScriptDialog();
     void slotOpenScript();
+
+    void slotShowTimeDialog();
+
+    void slotSetTime(double tdb);
     
  signals:
     void progressUpdate(const QString& s, int align, const QColor& c);

src/celestia/qt/qtsettimedialog.cpp

@@ -0,0 +1,75 @@
+// qtsettimedialog.cpp
+//
+// Copyright (C) 2008, Celestia Development Team
+// celestia-developers@lists.sourceforge.net
+//
+// Set time/date dialog box.
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// as published by the Free Software Foundation; either version 2
+// of the License, or (at your option) any later version.
+
+#include "qtsettimedialog.h"
+#include <QPushButton>
+#include <QDialogButtonBox>
+#include <QDateTimeEdit>
+#include <QVBoxLayout>
+#include "celengine/astro.h"
+
+
+SetTimeDialog::SetTimeDialog(double currentTimeTDB,
+                             QWidget* parent) :
+    QDialog(parent),
+    dateEdit(NULL)
+{
+    QVBoxLayout* layout = new QVBoxLayout();
+
+    dateEdit = new QDateTimeEdit(this);
+    // The date control doesn't seem to work properly with earlier dates
+    dateEdit->setMinimumDate(QDate(1000, 1, 1));
+    dateEdit->setDisplayFormat("dd MMM yyyy hh:mm:ss.zzz");
+    dateEdit->setCalendarPopup(true);
+
+    astro::Date utc = astro::TDBtoUTC(currentTimeTDB);
+
+    int sec = (int) utc.seconds;
+    int msec = (int) ((utc.seconds - sec) * 1000);
+    QDateTime d(QDate(utc.year, utc.month, utc.day),
+                QTime(utc.hour, utc.minute, sec, msec));
+    dateEdit->setDateTime(d);
+
+    layout->addWidget(dateEdit, 0, 0);
+
+    QDialogButtonBox* buttonBox = new QDialogButtonBox(this);
+    buttonBox->setStandardButtons(QDialogButtonBox::Cancel);
+
+    QPushButton* setTimeButton = new QPushButton(tr("Set time"), buttonBox);
+    buttonBox->addButton(setTimeButton, QDialogButtonBox::ApplyRole);
+    connect(setTimeButton, SIGNAL(clicked()), this, SLOT(slotSetTime()));
+
+    connect(buttonBox, SIGNAL(rejected()), this, SLOT(reject()));
+
+    layout->addWidget(buttonBox);
+
+    setLayout(layout);
+}
+
+
+SetTimeDialog::~SetTimeDialog()
+{
+}
+
+
+void SetTimeDialog::slotSetTime()
+{
+    QDate d = dateEdit->date();
+    QTime t = dateEdit->time();
+
+    astro::Date utc(d.year(), d.month(), d.day());
+    utc.hour = t.hour();
+    utc.minute = t.minute();
+    utc.seconds = (double) t.second() + t.msec() / 1000.0;
+
+    emit setTimeTriggered(astro::UTCtoTDB(utc));
+}

src/celestia/qt/qtsettimedialog.h

@@ -0,0 +1,40 @@
+// qtsettimedialog.h
+//
+// Copyright (C) 2008, Celestia Development Team
+// celestia-developers@lists.sourceforge.net
+//
+// Set time/date dialog box.
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of the GNU General Public License
+// as published by the Free Software Foundation; either version 2
+// of the License, or (at your option) any later version.
+
+#ifndef _QTSETTIMEDIALOG_H_
+#define _QTSETTIMEDIALOG_H_
+
+#include <QDialog>
+
+class QDateTimeEdit;
+
+
+class SetTimeDialog : public QDialog
+{
+Q_OBJECT
+
+ public:
+    SetTimeDialog(double currentTimeTDB,
+                  QWidget* parent = NULL);
+    ~SetTimeDialog();
+
+ public slots:
+    void slotSetTime();
+
+ signals:
+    void setTimeTriggered(double tdb);
+
+ private:
+    QDateTimeEdit* dateEdit;
+};
+
+#endif // _QTSETTIMEDIALOG_H_