/**
* Gets a temporary formatter for a zoneless date time. The same formatter is returned on
* subsequent calls.
*
* @param format a {@link java.text.SimpleDateFormat} format string
*/
protected DateFormat getFormatter(String format) {
if ((tempFormatter != null) && lastFormat.equals(format)) {
return tempFormatter;
}
tempFormatter = DateTimeUtil.newDateFormat(format);
tempFormatter.setTimeZone(DateTimeUtil.gmtZone);
lastFormat = format;
return tempFormatter;
}
static {
String pattern = "EEE, dd MMM yyyy HH:mm:ss zzz";
tz = TimeZone.getTimeZone("GMT");
df = new SimpleDateFormat(pattern, Locale.US);
df.setTimeZone(tz);
}
public int doEndTag() throws JspException {
String pattern = this.pattern;
ResourceBundle bundle = null;
// get pattern from bundle
if (pattern == null) {
String prefix = null;
bundle = this.bundle;
if (bundle == null) {
BundleTag bundleTag = (BundleTag) findAncestorWithClass(this, BundleTag.class);
if (bundleTag != null) {
bundle = bundleTag.getBundle();
prefix = bundleTag.getPrefix();
}
}
if (bundle == null) {
bundle = I18nUtil.findBundle(pageContext);
}
// get message
try {
pattern = bundle.getString(prefix != null ? prefix + this.key : this.key);
} catch (Exception e) {
pattern = "???" + this.key + "???";
}
}
// format message
String message = pattern;
if ((this.pattern != null || bundle != null) && this.params.size() != 0) {
// set timezone on formatters
TimeZone timeZone = null;
TimeZoneTag timeZoneTag = (TimeZoneTag) findAncestorWithClass(this, TimeZoneTag.class);
if (timeZoneTag != null) timeZone = timeZoneTag.getTimeZone();
if (timeZone == null) timeZone = I18nUtil.findTimeZone(pageContext);
MessageFormat formatter = new MessageFormat(pattern, I18nUtil.findLocale(pageContext));
for (Format format : formatter.getFormatsByArgumentIndex()) {
if (format != null && format instanceof DateFormat) {
((DateFormat) format).setTimeZone(timeZone);
}
}
// now format!
message = formatter.format(getParams());
}
// output text
if (this.var == null) {
try {
pageContext.getOut().print(message);
} catch (IOException e) {
throw new JspException(e);
}
}
// store result
else {
pageContext.setAttribute(this.var, message, this.scope);
}
// clear old state
this.pattern = null;
this.bundle = null;
this.key = null;
this.var = null;
this.scope = PageContext.PAGE_SCOPE;
// continue with page
return EVAL_PAGE;
}
/**
* The constructor for this class has a bunch of arguments: The frame argument is required for all
* printing in Java. The jobname appears left justified at the top of each printed page. The font
* size is specified in points, as on-screen font sizes are. The margins are specified in inches
* (or fractions of inches).
*/
public HardcopyWriter(
Frame frame,
String jobname,
int fontsize,
double leftmargin,
double rightmargin,
double topmargin,
double bottommargin)
throws HardcopyWriter.PrintCanceledException {
// Get the PrintJob object with which we'll do all the printing.
// The call is synchronized on the static printprops object, which
// means that only one print dialog can be popped up at a time.
// If the user clicks Cancel in the print dialog, throw an exception.
Toolkit toolkit = frame.getToolkit(); // get Toolkit from Frame
synchronized (printprops) {
job = toolkit.getPrintJob(frame, jobname, printprops);
}
if (job == null) throw new PrintCanceledException("User cancelled print request");
pagesize = job.getPageDimension(); // query the page size
pagedpi = job.getPageResolution(); // query the page resolution
// Bug Workaround:
// On windows, getPageDimension() and getPageResolution don't work, so
// we've got to fake them.
if (System.getProperty("os.name").regionMatches(true, 0, "windows", 0, 7)) {
// Use screen dpi, which is what the PrintJob tries to emulate, anyway
pagedpi = toolkit.getScreenResolution();
System.out.println(pagedpi);
// Assume a 8.5" x 11" page size. A4 paper users have to change this.
pagesize = new Dimension((int) (8.5 * pagedpi), 11 * pagedpi);
System.out.println(pagesize);
// We also have to adjust the fontsize. It is specified in points,
// (1 point = 1/72 of an inch) but Windows measures it in pixels.
fontsize = fontsize * pagedpi / 72;
System.out.println(fontsize);
System.out.flush();
}
// Compute coordinates of the upper-left corner of the page.
// I.e. the coordinates of (leftmargin, topmargin). Also compute
// the width and height inside of the margins.
x0 = (int) (leftmargin * pagedpi);
y0 = (int) (topmargin * pagedpi);
width = pagesize.width - (int) ((leftmargin + rightmargin) * pagedpi);
height = pagesize.height - (int) ((topmargin + bottommargin) * pagedpi);
// Get body font and font size
font = new Font("Monospaced", Font.PLAIN, fontsize);
metrics = toolkit.getFontMetrics(font);
lineheight = metrics.getHeight();
lineascent = metrics.getAscent();
charwidth = metrics.charWidth('0'); // Assumes a monospaced font!
// Now compute columns and lines will fit inside the margins
chars_per_line = width / charwidth;
lines_per_page = height / lineheight;
// Get header font information
// And compute baseline of page header: 1/8" above the top margin
headerfont = new Font("SansSerif", Font.ITALIC, fontsize);
headermetrics = toolkit.getFontMetrics(headerfont);
headery = y0 - (int) (0.125 * pagedpi) - headermetrics.getHeight() + headermetrics.getAscent();
// Compute the date/time string to display in the page header
DateFormat df = DateFormat.getDateTimeInstance(DateFormat.LONG, DateFormat.SHORT);
df.setTimeZone(TimeZone.getDefault());
time = df.format(new Date());
this.jobname = jobname; // save name
this.fontsize = fontsize; // save font size
}
