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Merge pull request #78 from rototor/custom-object-drawers
Custom object drawers
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12 changes: 12 additions & 0 deletions
12
openhtmltopdf-core/src/main/java/com/openhtmltopdf/extend/FSObjectDrawer.java
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| package com.openhtmltopdf.extend; | ||
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| import com.openhtmltopdf.render.RenderingContext; | ||
| import org.w3c.dom.Element; | ||
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| /** | ||
| * Handle the drawing of <object> tags | ||
| */ | ||
| public interface FSObjectDrawer { | ||
| void drawObject(Element e, double x, double y, double width, double height, OutputDevice outputDevice, | ||
| RenderingContext ctx, int dotsPerPixel); | ||
| } |
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14
openhtmltopdf-core/src/main/java/com/openhtmltopdf/extend/FSObjectDrawerFactory.java
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| package com.openhtmltopdf.extend; | ||
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| import org.w3c.dom.Element; | ||
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| /** | ||
| * Factory for ObjectDrawers, i.e. classes which draw <object> tags | ||
| */ | ||
| public interface FSObjectDrawerFactory { | ||
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| /** | ||
| * Determine an object drawer for the given object tag element. | ||
| */ | ||
| FSObjectDrawer createDrawer(Element e); | ||
| } |
33 changes: 33 additions & 0 deletions
33
openhtmltopdf-core/src/main/java/com/openhtmltopdf/render/DefaultObjectDrawerFactory.java
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| package com.openhtmltopdf.render; | ||
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| import com.openhtmltopdf.extend.FSObjectDrawer; | ||
| import com.openhtmltopdf.extend.FSObjectDrawerFactory; | ||
| import org.w3c.dom.Element; | ||
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| import java.util.HashMap; | ||
| import java.util.Map; | ||
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| /** | ||
| * Default FSObjectDrawer factory, which allows to register drawer for specified | ||
| * content type | ||
| */ | ||
| public class DefaultObjectDrawerFactory implements FSObjectDrawerFactory { | ||
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| /** | ||
| * Maps content type => Drawer | ||
| */ | ||
| private final Map<String, FSObjectDrawer> drawerMap = new HashMap<String, FSObjectDrawer>(); | ||
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| @Override | ||
| public FSObjectDrawer createDrawer(Element e) { | ||
| return drawerMap.get(e.getAttribute("type")); | ||
| } | ||
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| /** | ||
| * @param contentType the content type this drawer is for | ||
| * @param drawer Drawer | ||
| */ | ||
| public void registerDrawer(String contentType, FSObjectDrawer drawer) { | ||
| drawerMap.put(contentType,drawer); | ||
| } | ||
| } |
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23 changes: 23 additions & 0 deletions
23
openhtmltopdf-examples/src/main/resources/testcases/custom-objects.html
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| <html> | ||
| <head> | ||
| <style> | ||
| object { | ||
| border: 2px solid black; | ||
| } | ||
| </style> | ||
| </head> | ||
| <body> | ||
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| <h1>Some binary trees</h1> | ||
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| <object type="custom/binary-tree" data-fanout="3" data-depth="5" data-angle="20" | ||
| style="width:200px; height:300px;"> | ||
| <!-- This is a simple example for a custom object drawer --> | ||
| </object> | ||
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| <object type="custom/binary-tree" data-fanout="2" data-depth="10" data-angle="30" | ||
| style="width:400px; height:300px;"> | ||
| <!-- This is a simple example for a custom object drawer --> | ||
| </object> | ||
| </body> | ||
| </html> |
74 changes: 74 additions & 0 deletions
74
...f-pdfbox/src/main/java/com/openhtmltopdf/pdfboxout/PdfBoxObjectDrawerReplacedElement.java
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| package com.openhtmltopdf.pdfboxout; | ||
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| import com.openhtmltopdf.extend.FSObjectDrawer; | ||
| import com.openhtmltopdf.layout.LayoutContext; | ||
| import com.openhtmltopdf.render.BlockBox; | ||
| import com.openhtmltopdf.render.RenderingContext; | ||
| import org.w3c.dom.Element; | ||
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| import java.awt.*; | ||
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| /** | ||
| * FSObjectDrawer Element for PDFBox | ||
| */ | ||
| public class PdfBoxObjectDrawerReplacedElement implements PdfBoxReplacedElement { | ||
| private final Element e; | ||
| private Point point = new Point(0, 0); | ||
| private final FSObjectDrawer drawer; | ||
| private final int width; | ||
| private final int height; | ||
| private final int dotsPerPixel; | ||
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| public PdfBoxObjectDrawerReplacedElement(Element e, FSObjectDrawer drawer, int cssWidth, int cssHeight, | ||
| int dotsPerPixel) { | ||
| this.e = e; | ||
| this.drawer = drawer; | ||
| this.width = cssWidth; | ||
| this.height = cssHeight; | ||
| this.dotsPerPixel = dotsPerPixel; | ||
| } | ||
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| @Override | ||
| public int getIntrinsicWidth() { | ||
| return this.width; | ||
| } | ||
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| @Override | ||
| public int getIntrinsicHeight() { | ||
| return this.height; | ||
| } | ||
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| @Override | ||
| public Point getLocation() { | ||
| return point; | ||
| } | ||
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| @Override | ||
| public void setLocation(int x, int y) { | ||
| point.setLocation(x, y); | ||
| } | ||
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| @Override | ||
| public void detach(LayoutContext c) { | ||
| } | ||
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| @Override | ||
| public boolean isRequiresInteractivePaint() { | ||
| return false; | ||
| } | ||
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| @Override | ||
| public boolean hasBaseline() { | ||
| return false; | ||
| } | ||
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| @Override | ||
| public int getBaseline() { | ||
| return 0; | ||
| } | ||
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| @Override | ||
| public void paint(RenderingContext c, PdfBoxOutputDevice outputDevice, BlockBox box) { | ||
| drawer.drawObject(e, point.getX(), point.getY(), getIntrinsicWidth(), getIntrinsicHeight(), outputDevice, c, dotsPerPixel); | ||
| } | ||
| } |
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