A couple of new functions to FOP's PDF rendering: o SVG's and images as page fore-/backgrounds with transparency control o SVG rendering as image o Image resolution control by the user o Caching on the PDF way: store/write a resource once - reuse it o Open Actions
These add-ons are programmed as instream-foreign-object's by FOP extensions and by adding code to the PDF renderer. They are outside of XSL-FO standards and fully compatible with the present FOP. Tested with: FOP 0.20.4, Java 1.4 and 1.3.1, Batik 1.5 Download: http://mypage.bluewin.ch/huanderegg Hansuli Anderegg ====================================================== o General structure of instream-foreign-object's <fo:instream-foreign-object> <anyext:anyext> <anyext:extension_element ..... </anyext:anyext> </fo:instream-foreign-object> (FOP seems to require "<anyext:anyext>"-elements. Who knows why?) ====================================================== FOREGROUNDS AND BACKGROUNDS o Specifying an SVG resource <anyext:svg_resource name="name" src="url" height="points" imageResolution="dpi" PDFfonts="yes"/> - name: to reference a resource - url: of an (external) SVG or image file - height: controls the presentation size of the resource. The viewbox of the SVG is transformed to the given height with a proportionally sized width. - points: all measurement are in points = inch/72 - imageResolution="dpi": if present, a JPEG image is created with the asked resolution - PDFfonts="yes": if present, PDF fonts are used - otherwise text is drawn by graphics _________________________________________________________________ o Specifying a JPEG image resource <anyext:image_resource name="<name>" src="<url>" widthPix="pixels" heightPix="pixels" width="points" height="points"/> - widthPix, heightPix: image size in pixels _________________________________________________________________ o Specifying page foregrounds, backgrounds <anyext:form first="nameReference,pointsX,pointsY,"background"|"foreground",transparency" odd="nameReference,pointsX,pointsY,"background"|"foreground",transparency" even="nameReference,pointsX,pointsY,"background"|"foreground",transparency /> - first, odd, even: use resource specified by nameReference for first, odd or even document pages - "background" or "foreground": resource is to be presented either in background or foreground layer - pointsX,pointsY: top/left corner page coordinates of background/foreground - transparency: constant alpha with defined values "0.25" or "0.5" or "0.75" or "1.0" (alpha blending simulates the opacity of celluloid layers: 1.0 indicates an opaque pixel, 0.0 indicates a transparent pixel ) _________________________________________________________________ o Resetting page foregrounds and backgrounds by setting nameReference to "null" <anyext:form first="null,pointsX,pointsY,"background"|"foreground",transparency" odd="null,pointsX,pointsY,"background"|"foreground",transparency" even="null,pointsX,pointsY,"background"|"foreground",transparency /> _________________________________________________________________ o Rendering an SVG as image <fo:instream-foreign-object height="<points>"> <anyext:anyext><anyext:svg_put src="<url>" imageResolution="dpi"/></anyext:anyext> </fo:instream-foreign-object> - height: required, so that FOP allocates the space - imageResolution: resolution control --> current position(x,y) calculated by FOP formatting ====================================================== VARIOUS EXTENSIONS o Specifying a startup AcroScript <anyext:anyext><anyext:openaction>app.beep(0); this.zoom = 200;</anyext:openaction></anyext:anyext> Enter any suitable AcroScript statements to set startup options, preferences, menues etc. in the tag text, _________________________________________________________________ o Turning on debugging messages <anyext:anyext><anyext:debug/></anyext:anyext> _________________________________________________________________ o and who programs? <anyext:bookmark level="n">bookmark text</<anyext:bookmark> <anyext:bar3of9 position="50,100" rotation="270" height="24" modwidth="12" ration="2.5" asterisk="yes" checksum="yes" text="below"> barcode data</anyext:bar3of9> ================================================================ SAMPLE INPUT <fo:flow flow-name="xsl-region-body"> <fo:block> <fo:instream-foreign-object> <anyext:anyext><anyext:debug/></anyext:anyext> </fo:instream-foreign-object> <fo:instream-foreign-object> <anyext:anyext><anyext:openaction>app.beep(0); this.zoom = 200;</anyext:openaction></anyext:anyext> </fo:instream-foreign-object> <fo:instream-foreign-object> <anyext:anyext><anyext:svg_resource name="svg01" src="file:///C:/fop-0.20.4rc/AnyExtensions/batik01.svg" height="80" imageResolution="96"/></anyext:anyext> </fo:instream-foreign-object> <fo:instream-foreign-object> <anyext:anyext><anyext:svg_resource name="svg02" src="file:///C:/fop-0.20.4rc/AnyExtensions/batik02.svg" height="250"/></anyext:anyext> </fo:instream-foreign-object> <fo:instream-foreign-object> <anyext:anyext><anyext:svg_resource name="svg03" src="file:///C:/fop-0.20.4rc/AnyExtensions/block120.svg" height="50" PDFfonts="yes"/></anyext:anyext> </fo:instream-foreign-object> <fo:instream-foreign-object> <anyext:anyext><anyext:image_resource name="img01" src="file:///C:/fop-0.20.4rc/AnyExtensions/CENTRALIMAGE.JPG" widthPix="251" heightPix="375" width="251" height="375"/></anyext:anyext> </fo:instream-foreign-object> <fo:instream-foreign-object> <anyext:anyext><anyext:form first="svg01,50,420,background,0.5" odd="svg02,50,420,backround,0.5" even="img01,144,216,background,0.5" /></anyext:anyext> </fo:instream-foreign-object> </fo:block> ====================================================== --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
