generalizedtimeeditor.java

JAVA开源LDAP浏览器jxplorer的源码!

        // Add SECOND components...
        dateTimePanel.add(secondLabel);
        dateTimePanel.add(secondCombo);
        dateTimePanel.add(new JLabel(" "));

        // Add MILLISECOND components...
        dateTimePanel.add(milliSecondLabel);
        dateTimePanel.add(milliSecondCombo);

        // Add border...
        dateTimePanel.setBorder(new TitledBorder(CBIntText.get(" Date/Time ")));

        // Add 'Now' button and a check box to a new panel...
        CBPanel btnPanel = new CBPanel();
        btnPanel.makeLight();
        btnPanel.addln(btnNow);
        btnPanel.addln(checkBox);

        // Set selected indexes and field text...
        setSelectedIndexes();

        // Add panels to main display panel...
        display.makeHeavy();
        display.add(dateTimePanel);
        display.makeHigh();
        display.add(btnPanel);
        display.newLine();
        display.makeHeavy();

        // Padding at bottom...
        display.addln(new JLabel("  "));

        setSize(500, 200);

        // Get the number of days in the selected month...
        numDays = getDaysInMonth(userMonth);
    }

    /**
     * Initialises the date and time variables depending on the current attribute value.
     * For example: 20010920235959.999 would display...
     * year 		- 2001
     * month 		- September
     * day 		    - 20
     * hour 		- 23 (11pm)
     * minute 		- 59
     * second 		- 59
     * millisecond - 999
     * If there is no value the date and time variables default to zero (0).
     */
    protected void initDateTimeVariables()
    {
        int size = 0;

        try
        {
            size = value.length();
        }
        catch (Exception e)
        {
            size = 0;
        }

        try
        {
            // Init month...
            userMonth = Integer.parseInt(value.substring(4, 6));

            // Init year...
            userYear = Integer.parseInt(value.substring(0, 4));

            // Init day...
            userDay = Integer.parseInt(value.substring(6, 8));

            // Init hour...
            userHour = Integer.parseInt(value.substring(8, 10));

            // Init minute...
            userMinute = Integer.parseInt(value.substring(10, 12));

            // Init second...
            if (size > 13)
                userSecond = Integer.parseInt(value.substring(12, 14));

            // Init milli-seconds...
            if (value.indexOf(".") == 14)
            {
                // Where is the Z?...
                int zIndex = value.indexOf("Z");

                String milli = null;

                if (zIndex == 16)
                    milli = value.substring(15, 16) + "00";				// .9Z.
                else if (zIndex == 17)
                    milli = value.substring(15, 17) + "0";				// .99Z.
                else if (size == 18 || zIndex == 18)
                    milli = value.substring(15, 18);					// .999 or .999Z.
                else if (size == 17)
                    milli = value.substring(15, 17) + "0";				// .99.
                else if (size == 16)
                    milli = value.substring(15, 16) + "00";				// .9.

                userMilliSecond = Integer.parseInt(milli);
            }
        }
        catch (Exception e)
        {
            userMonth = 0;
            userYear = 0;
            userDay = 0;
            userHour = 0;
            userMinute = 0;
            userSecond = 0;
            userMilliSecond = 0;
        }
    }

    /**
     * Returns the days in the month that is supplied.
     * @param month an integer representation of the month
     * for example: 1 = Jan, 2 = Feb...12 = Dec.
     * 0 = an unspecified month which has 0 days.
     * @return the days in the month for example:
     * Jan = 31, Feb = 28 (29 if leap) etc.
     */
    protected int getDaysInMonth(int month)
    {
        return daysInMonth[month] + ((isLeapYear(getUserYear()) &&
                (userMonth == FEBRUARY)) ? 1 : 0);
    }

    /**
     * Gets the current date and time from the user's machine and displays it.
     */
    protected void displayCurrent()
    {
        // Get the date and time of right now...
        rightNow = Calendar.getInstance();

        userYear = rightNow.get(Calendar.YEAR);

        // Jan is meant to be 1 but is it actually is 0 and so on dec = 11...
        userMonth = rightNow.get(Calendar.MONTH) + 1;
        userDay = rightNow.get(Calendar.DAY_OF_MONTH);
        userHour = rightNow.get(Calendar.HOUR_OF_DAY);
        userMinute = rightNow.get(Calendar.MINUTE);
        userSecond = rightNow.get(Calendar.SECOND);
        userMilliSecond = rightNow.get(Calendar.MILLISECOND);

        yearTextField.setText(String.valueOf(userYear));
        monthCombo.setSelectedIndex(userMonth);
        dayCombo.setSelectedIndex(userDay);
        hourCombo.setSelectedIndex(userHour);
        minuteCombo.setSelectedIndex(userMinute);
        secondCombo.setSelectedIndex(userSecond);
        milliSecondCombo.setSelectedIndex(userMilliSecond);
    }

    /**
     * Sets the index of the combo boxes and the year field to the already initiated
     * date an time variables.
     */
    protected void setSelectedIndexes()
    {
        // Year...
        yearTextField.setText(String.valueOf(userYear));

        // Month...
        if (userMonth <= 13)
            monthCombo.setSelectedIndex(userMonth);
        else
            userMonth = 0;

        // Day...
        if (userDay <= getDaysInMonth(userMonth))
            dayCombo.setSelectedIndex(userDay);

        // Hour...
        if (userHour <= 23)
            hourCombo.setSelectedIndex(userHour);

        // Minute...
        if (userMinute <= 59)
            minuteCombo.setSelectedIndex(userMinute);

        // Second...
        if (userSecond <= 59)
            secondCombo.setSelectedIndex(userSecond);

        // Millisecond...
        if (userMilliSecond <= 999)
            milliSecondCombo.setSelectedIndex(userMilliSecond);
    }

    /**
     * Initialises the milli-second combo with integers from 0-999.
     */
    protected void initMilliSeconds()
    {
        for (int i = 0; i < 1000; i++)
            milliSecondCombo.addItem(new Integer(i));
    }

    /**
     * Initialises the second combo with integers from 0-59.
     */
    protected void initSeconds()
    {
        for (int i = 0; i < 60; i++)
            secondCombo.addItem(new Integer(i));
    }

    /**
     * Initialises the minute combo with integers from 0-59.
     */
    protected void initMinutes()
    {
        for (int i = 0; i < 60; i++)
            minuteCombo.addItem(new Integer(i));
    }

    /**
     * Initialises the hour combo with integers from 0-23.
     */
    protected void initHours()
    {
        for (int i = 0; i < 24; i++)
            hourCombo.addItem(new Integer(i));
    }

    /**
     * Initialises the second combo with integers from 0-31, 0-30, 0-29 or 0-28
     * depending on the number of days supplied.
     * @param days the maximum number of days to display.  Can be 0, 28, 29, 30 ,31.
     */
    protected void initDays(int days)
    {
        for (int i = 0; i <= days; i++)
        {
            if (i == 0)
                dayCombo.addItem("--");
            else
                dayCombo.addItem(new Integer(i));
        }
    }

    /**
     * Initialises the month combo with months of the year.
     * For example: --, January, Febuarary...December.
     */
    protected void initMonths()
    {
        for (int i = 0; i < 13; i++)
            monthCombo.addItem(months[i]);
    }

    /**
     * Re-populates the day combo to reflect the number of
     * days of the month that is selected in the month combo.
     * Accounts for leap year also.
     */
    protected void updateDayCombo()
    {
        // Remember the selected position in the day combo...
        int dayPos = dayCombo.getSelectedIndex();

        // Get the index of the selected month...
        userMonth = monthCombo.getSelectedIndex();

        // Empty the day combo...
        dayCombo.removeAllItems();

        // Get the days in the month (account for leap year)...
        numDays = getDaysInMonth(userMonth);

        // Add the days to the day combo...
        initDays(numDays);

        if (dayPos > -1)
        {
            setDayComboSelectedIndex(dayPos);

            // Make a backup of the last day index incase something goes wrong......
            dateIndexBackup = dayPos;
        }
        else
        {
            // Something has gone wrong so set the day combo to the backup index...
            setDayComboSelectedIndex(dateIndexBackup);
        }

        dayCombo.revalidate();
    }

    /**
     * Returns the year from the year field as an integer.  If there is a problem
     * parsing the value (which there shouldn't be because the year field is restricted to
     * whole numbers), the year is set to zero (0).
     * @return the year as displayed in the year field.
     */
    protected int getUserYear()
    {
        int userYearInt = 0;

        try
        {
            // Get the year from the text field and parse it...
            userYearInt = Integer.parseInt(yearTextField.getText(), 10);
        }
        catch (Exception e)
        {
            // If the year is something weird (other than blank) show the message...
            if (!(yearTextField.getText().length() == 0))
                JOptionPane.showMessageDialog(this, CBIntText.get("Please enter a valid year."),
                        CBIntText.get("Invalid Year"), JOptionPane.INFORMATION_MESSAGE);
            userYear = 0;
            yearTextField.setText(String.valueOf(userYear));
        }

        if (userYearInt > 1581)
            userYear = userYearInt;

        return userYear;
    }

    /**
     * Displays the value in the day combo at the index supplied.
     * If there is a problem with the index being out of bounds (or the like),
     * the index displayed is the last available in the combo.
     * @param index the index of the value to display in the day combo.
     */
    protected void setDayComboSelectedIndex(int index)
    {
        try
        {