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package org.openslx.dozmod.gui.wizard.page;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import javax.swing.event.DocumentEvent;
import javax.swing.event.DocumentListener;
import org.apache.log4j.Logger;
import org.openslx.dozmod.gui.wizard.Wizard;
import org.openslx.dozmod.gui.wizard.layout.LectureCreationPageLayout;
import org.openslx.dozmod.state.LectureWizardState;
@SuppressWarnings("serial")
public class LectureCreationPage extends LectureCreationPageLayout {
private final static Logger LOGGER = Logger.getLogger(LectureCreationPage.class);
private LectureWizardState state = null;
/**
* Page for creating lectures
*
* @param editExistingLecture whether to edit existing lecture or create new
* one
*/
public LectureCreationPage(Wizard wizard, LectureWizardState state) {
super(wizard);
this.state = state;
// listener for the text fields
final DocumentListener docListener = new DocumentListener() {
@Override
public void removeUpdate(DocumentEvent e) {
changedUpdate(e);
}
@Override
public void insertUpdate(DocumentEvent e) {
changedUpdate(e);
}
@Override
public void changedUpdate(DocumentEvent e) {
reactToUserInput();
}
};
lectureNameTextField.getDocument().addDocumentListener(docListener);
descriptionText.getDocument().addDocumentListener(docListener);
// listeners for the date pickers
ActionListener dateListener = new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
reactToUserInput();
}
};
// listeners for the time pickers
ChangeListener timeListener = new ChangeListener() {
@Override
public void stateChanged(ChangeEvent e) {
reactToUserInput();
}
};
startTime.addChangeListener(timeListener);
endTime.addChangeListener(timeListener);
startDate.addActionListener(dateListener);
endDate.addActionListener(dateListener);
}
/**
* Called by event listeners. This will set guidance message or error
* message and call setPageComplete(bool) accordingly.
* The state will be updated if the fields are valid.
*/
private void reactToUserInput() {
if (lectureNameTextField.getText().isEmpty()) {
setWarningMessage("Geben Sie einen Veranstaltungsnamen ein.");
setPageComplete(false);
return;
} else {
state.name = lectureNameTextField.getText();
}
if (descriptionText.getText().isEmpty()) {
setWarningMessage("Fügen Sie eine Beschreibung hinzu.");
setPageComplete(false);
return;
} else {
state.description = descriptionText.getText();
}
Date now = new Date();
Date start = getStartDate();
Date end = getEndDate();
if (start.after(end)) {
setWarningMessage("Startzeit is nach Endzeit!");
setPageComplete(false);
return;
} else if (now.after(end)) {
setWarningMessage("Endzeit liegt in die Vergangenheit!");
setPageComplete(false);
return;
} else { // all good, save them both
state.start = start;
state.end = end;
}
setWarningMessage("Sie können jetzt fortfahren.");
setPageComplete(true);
}
/**
* @return the Date object representing the user's input for the start date
*/
private Date getStartDate() {
// start date from the DatePicker
int years = startDate.getModel().getYear();
int months = startDate.getModel().getMonth() + 1;
int days = startDate.getModel().getDay();
// start time from the Spinner
Date starttime = (Date) startTime.getValue();
Calendar cal = Calendar.getInstance();
cal.setTime(starttime);
int hours = cal.get(Calendar.HOUR_OF_DAY);
int minutes = cal.get(Calendar.MINUTE);
// build the time from the single values
DateFormat format = new SimpleDateFormat("dd-MM-yyyy kk:mm");
Date date = null;
try {
date = format.parse(days + "-" + months + "-" + years + " " + hours + ":" + minutes);
} catch (ParseException e) {
LOGGER.error("Parsing error while converting date: ", e);
}
return date;
}
/**
* @return the Date object representing the user's input for the end date
*/
private Date getEndDate() {
// end date from the DatePicker
int years = endDate.getModel().getYear();
int months = endDate.getModel().getMonth() + 1;
int days = endDate.getModel().getDay();
// end time from the Spinner
Date endtime = (Date) endTime.getValue();
Calendar cal = Calendar.getInstance();
cal.setTime(endtime);
int hours = cal.get(Calendar.HOUR_OF_DAY);
int minutes = cal.get(Calendar.MINUTE);
// build the time from the single values
DateFormat format = new SimpleDateFormat("dd-MM-yyyy kk:mm");
Date date = null;
try {
date = format.parse(days + "-" + months + "-" + years + " " + hours + ":" + minutes);
} catch (ParseException e) {
LOGGER.error("Parsing error while converting date: ", e);
}
return date;
}
}
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