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114 lines
2.6 KiB
114 lines
2.6 KiB
#!/usr/bin/env kjscmd
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//
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// Script to create an image gallery for a set of images.
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//
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var default_title = 'Image Gallery';
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var default_intro = 'Here are some images, the larger ones have been scaled down to '
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+ 'ensure this page loads quickly. Click on an image or filename '
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+ 'to see it full size.';
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var default_width = 250;
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var default_height = 160;
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function write_header( title, intro )
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{
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println( '<html>' );
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println( '<head>' );
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println( '<title>'+title+'</title>' );
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println( '</head>' );
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println( '<body>' );
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println( '<h1 align="center">'+title+'</h1>' );
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println( '<hr>' );
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println( '<p>'+intro+'</p>' );
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println( '<table border=0 width="90%" cellpadding="12" cellspacing="1">' );
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}
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function write_footer()
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{
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println( '</table>' );
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println( '</body></html>' );
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}
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function write_image( name, w, h, thumb, tw, th, desc )
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{
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println( '<tr>' );
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print( '<td align="center">' );
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print( '<a href="'+name+'">' );
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print( '<img border=0 width='+tw+' height='+th+' src="'+thumb+'">' );
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print( '</a>' );
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println( '</td>' );
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print( '<td width="60%" valign="top" align="justify">' );
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print( '<b><a href="'+name+'">'+name+'</a></b>'+' ('+w+'x'+h+')' );
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// println( '<hr>' );
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println( '<p>'+desc+'</p>' );
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println( '</td>' );
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println( '</tr>' );
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}
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// Create a thumbnail and write the img tag.
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function process_image( name, desc )
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{
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var img = new Image();
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img.load( name );
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if ( !img.isOk() ) {
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warn( 'Failed to load image '+name);
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return null;
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}
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var w = img.width();
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var h = img.height();
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if ( (w > default_width) || (h > default_height) ) {
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img.smoothScaleMin( default_width, default_height );
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}
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var tw = img.width();
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var th = img.height();
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var thumb = 'thumb-'+name;
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img.save( thumb );
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if ( !img.isOk() ) {
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warn( 'Failed to save thumbnail '+thumb);
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return null;
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}
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write_image( name, w, h, thumb, tw, th, desc );
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}
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if ( application.args.length == 0 ) {
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System.stderr.println( 'Usage:' );
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System.stderr.println( '\timagegallery imgfile ...' );
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}
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else {
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write_header( default_title, default_intro );
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for ( var i = 0 ; i < application.args.length ; i++ ) {
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var name = application.args[i];
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if ( name.match( /^thumb-/ ) ) {
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// Ignore thumbnails
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}
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else {
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var desc_file = name.replace( /\.[^\.]+$/, '.htm' );
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var desc;
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try {
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desc = System.readFile( desc_file );
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}
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catch(x) {
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desc = '<i>No Description</i>';
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}
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process_image( name, desc );
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}
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}
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write_footer();
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}
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