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Posted to fop-commits@xmlgraphics.apache.org by vm...@apache.org on 2003/04/22 00:55:52 UTC
cvs commit: xml-fop/src/documentation/content/xdocs/design/understanding book.xml renderers.xml
vmote 2003/04/21 15:55:52
Modified: src/documentation/content/xdocs/design book.xml
renderers.xml
src/documentation/content/xdocs/design/understanding
book.xml
Removed: src/documentation/content/xdocs/design/understanding
renderers.xml
Log:
Combine content of design/understanding/renderers.xml with design/renderers.xml.
Revision Changes Path
1.11 +0 -1 xml-fop/src/documentation/content/xdocs/design/book.xml
Index: book.xml
===================================================================
RCS file: /home/cvs/xml-fop/src/documentation/content/xdocs/design/book.xml,v
retrieving revision 1.10
retrieving revision 1.11
diff -u -r1.10 -r1.11
--- book.xml 21 Apr 2003 20:51:55 -0000 1.10
+++ book.xml 21 Apr 2003 22:55:51 -0000 1.11
@@ -29,7 +29,6 @@
<menu-item label="Properties" href="understanding/properties.html"/>
<menu-item label="Layout Managers" href="understanding/layout_managers.html"/>
<menu-item label="Area Tree" href="understanding/area_tree.html"/>
- <menu-item label="Renderers" href="understanding/renderers.html"/>
</menu>
<menu label="Extras">
<menu-item label="Images" href="understanding/images.html"/>
1.4 +119 -0 xml-fop/src/documentation/content/xdocs/design/renderers.xml
Index: renderers.xml
===================================================================
RCS file: /home/cvs/xml-fop/src/documentation/content/xdocs/design/renderers.xml,v
retrieving revision 1.3
retrieving revision 1.4
diff -u -r1.3 -r1.4
--- renderers.xml 6 Apr 2003 21:55:48 -0000 1.3
+++ renderers.xml 21 Apr 2003 22:55:51 -0000 1.4
@@ -36,6 +36,125 @@
</p>
</section>
+
+
+
+<section>
+ <title>Renderers</title>
+
+<p>A renderer is used to convert the Area Tree into the output document.
+The renderer is given the tree one page at a time. All pages are supplied
+in the order they appear in the document. In order to save memory it is
+possble to render the pages out of order. Any page that is not reeady to
+be rendered is setup by the renderer first so that it can reserve a space
+or reference for when the page is ready to be rendered.</p>
+<p>The AbstractRenderer does most of the work to iterate through the area
+tree parts. This means that the most renderers simply need to implement
+the specific parts with inserting text, images and lines. The methods can
+easily be overridden to handle things in a different way or do some extra
+processing.</p>
+</section>
+
+<section>
+ <title>Fonts</title>
+<p>The fonts are setup by the renderer being used. The font metrics are used
+during the layout process to determine the size of characters.</p>
+</section>
+
+<section>
+ <title>Render Context</title>
+<p>The render context is used by handlers. It contains information about the
+current state of the renderer. Such as the page, the position and any
+other miscellanous objects that are required to draw into the page.</p>
+</section>
+
+<section>
+ <title>XML Handling</title>
+
+<p>A document may contain information in the form of XML for an image or
+instream foreign object. This XML is handled
+through the user agent. A standard extension for PDF is the SVG handler.</p><p>
+If there is XML in the SVG namespace it is given to the handler which
+renders the SVG into the pdf document at the given location.
+This separation means that other XML handlers can easily be added.</p>
+</section>
+
+<section>
+ <title>Extensions</title>
+<p>Document level extensions are handled with an extension handler. This
+handles the information from the AreaTree and adds renders it to the
+document. An example is the pdf bookmarks. This information first needs to
+have all references resolved. Then the extension handler is ready to put
+the information into the pdf document.</p>
+</section>
+
+<section>
+<title>Types</title>
+
+<section>
+ <title>PDF</title>
+<p>This uses the PDFDocument classes to create a PDF document. This supports
+out of order rendering as it is possible to reserve a pdf page object that
+can be later filled. Most of the work is to insert text or create lines.
+SVG is handled by the XML handler that uses the PDFGraphics2D and batik to
+draw the svg into the pdf page.</p><p>
+This also allows for font embedding.</p>
+</section>
+<section>
+ <title>SVG</title>
+<p>This creates a single svg document that contains all the pages rendered
+with page sequences horizontally and pages vertically. This also adds
+links between the pages so that it can be viewed by clicking on the page
+to go to the next page.</p>
+</section>
+
+<section>
+ <title>TXT</title>
+<p>This simply outputs to a text document.</p></section>
+<section>
+ <title>AWT</title>
+<p>This draws the pages into an AWT graphic.</p></section>
+
+<section>
+ <title>PS and PCL</title>
+<p>Similar to PDF.</p></section>
+
+<section>
+ <title>XML</title>
+<p>Creates an XML file that represents the AreaTree.</p>
+</section>
+<section>
+ <title>Print</title>
+<p>This prints the document using the java printing facitlities. The AWT
+rendering is used to draw the pages onto the printjob.
+</p>
+</section>
+<section>
+ <title>RTF and MIF</title>
+<p>These formats do not use this rendering mechanism.</p>
+</section>
+</section>
+
+<section>
+ <title>Adding a Renderer</title>
+<p>It is also possible to add other renderers. The renderer simply needs to
+implement the Renderer interface. The AbstractRenderer does most of what
+is needed so it is better to extend this. This means that you only need to
+implement the basic functionality such as text and lines.
+</p>
+</section>
+
+<section>
+ <title>Multiple Renderers</title>
+<p>The layout of the document depends mainly on the font being used.
+If two renderers have the same font metrics then it is possible to render
+the Area Tree in each renderer. This can be handled by the AreaTree
+Handler.</p>
+</section>
+
+
+
+
</body>
</document>
1.4 +0 -1 xml-fop/src/documentation/content/xdocs/design/understanding/book.xml
Index: book.xml
===================================================================
RCS file: /home/cvs/xml-fop/src/documentation/content/xdocs/design/understanding/book.xml,v
retrieving revision 1.3
retrieving revision 1.4
diff -u -r1.3 -r1.4
--- book.xml 21 Apr 2003 20:51:55 -0000 1.3
+++ book.xml 21 Apr 2003 22:55:52 -0000 1.4
@@ -33,7 +33,6 @@
<menu-item label="Properties" href="properties.html"/>
<menu-item label="Layout Managers" href="layout_managers.html"/>
<menu-item label="Area Tree" href="area_tree.html"/>
- <menu-item label="Renderers" href="renderers.html"/>
</menu>
<menu label="Extras">
<menu-item label="Images" href="images.html"/>
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