Indeterminate progress bar as popup window

A small indeterminate progress bar. Use like this:

pleaseWait wait = new pleaseWait();

wait.start();

/* some long operation */

wait.stop();

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import org.eclipse.swt.SWT;

import org.eclipse.swt.graphics.Rectangle;

import org.eclipse.swt.widgets.Display;

import org.eclipse.swt.widgets.Monitor;

import org.eclipse.swt.widgets.ProgressBar;

import org.eclipse.swt.widgets.Shell;

public class pleaseWait extends Thread {

        public void run() {

                Display display = new Display();

                Shell shell = new Shell(display, SWT.TITLE | SWT.BORDER | SWT.APPLICATION_MODAL);

                shell.setText("Please wait...");

                ProgressBar bar = new ProgressBar(shell, SWT.INDETERMINATE);

                bar.setBounds(1, 0, 200, 20);

                bar.setMaximum(5);

                bar.setMinimum(0);

                shell.pack();

                Monitor primary = display.getPrimaryMonitor();

                Rectangle bounds = primary.getBounds();

                Rectangle rect = shell.getBounds();

                int x = bounds.x + (bounds.width - rect.width) / 2;

                int y = bounds.y + (bounds.height - rect.height) / 2;

                shell.setLocation(x, y);

                shell.open();

                while (!shell.isDisposed()) {

                        if (!display.readAndDispatch())

                                display.sleep();

                }

        }

}

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Read XML file, set a node value by XPATH and save the XML file w/ Perl

use XML::XPath;

use XML::XPath::XMLParser;

# Load XML Structure

my $xml_file_name = 'somewhere/somefile.xml';

my $xp = XML::XPath->new(filename => $xml_file_name);

# Set Value of an XPATH node

my $new_value = “My New Value”;

set_node($xp,'/SomeRoot/SomeChild/SomeTag[@symbol="SomeAttribute"]', $new_value);

# Save modified XML file

my $nodeSet = $xp->find("/");

my $xml_file_content = $nodeSet->get_node(1)->toString;

# Preserve xml entities

$ xml_file_content =~s/&#/&#/g; 

# Save file

open(XML,"> $xml_file_name") or die "ERROR: Can't open $xml_file_name \n$!";

print XML $xml_file_name;

close XML;

sub set_node {

        my $xp = shift @_;

        my $xpath=shift @_;

        my $xvalue=shift @_;

my $nodeset = $xp->find($xpath);

         foreach my $node ($nodeset->get_nodelist) {

                $xp->setNodeText($xpath,$xvalue);

         }

}

Convert plain text to HTML&XML escaped entities w/ Perl

sub xmlize {

       # unpack byte-by-byte (set to "U0U*" in case of UTF-8)

        my $format="C*"; 
           my @output;

        while($line=shift @_) {

                my @array=map {

                        if($_>127) {

                                sprintf("&#%04ld;",$_);

                        }

                        else {

                                sprintf("%s",chr($_));

                        }

                }unpack($format,$line);

                push(@output,join "", @array);

        }

        return join "",@output;

}

Sort SWT Table by a column reagardless the column count

Create a table, add columns and the following listener to each column:

private Listener TableSortListener(final Table table) {

            return new Listener() {

                public void handleEvent(Event e) {

                    TableItem[] items = table.getItems();

                    Collator collator = Collator.getInstance(Locale.getDefault());

                    TableColumn column = (TableColumn)e.widget;

                    int index = 0;

                   

                    // Get selected column

                    for(int i=0;i<table.getColumnCount();i++)

                         if(column == table.getColumn(i)) index=i;

                    // Set sort direction

                    int cmp =-1;         

                    if(table.getSortDirection() == SWT.UP) cmp = 1;

                   

                    for (int i = 1; i < items.length; i++) {

                        String value1 = items[i].getText(index);

                        for (int j = 0; j < i; j++){

                            String value2 = items[j].getText(index);

                            if (collator.compare(value1, value2) * cmp < 0) {

                                

                                 // Cache Strings

                                 String[] values = new String[table.getColumnCount()] ;

                                 for(int c=0;c<table.getColumnCount();c++) values[c] = items[i].getText(c);

        

                                // Cache Data & Images

                                String data = (String) items[i].getData();

                                org.eclipse.swt.graphics.Image image = items[i].getImage();

                               

                                // Redraw

                                items[i].dispose();

                                TableItem item = new TableItem(table, SWT.NONE, j);

                                item.setText(values);

                                item.setData(data);

                                item.setImage(image);

                               

                                items = table.getItems();

                                break;

                            }

                        }

                    }

                    table.setSortColumn(column);

                    table.setSortDirection((table.getSortDirection() == SWT.UP)? SWT.DOWN : SWT.UP);

                }

            };

        }