Java tutorial
package com.lowagie.text.rtf.graphic; import java.io.IOException; import java.io.OutputStream; import java.util.HashMap; import java.util.Iterator; import com.lowagie.text.DocWriter; import com.lowagie.text.rtf.RtfAddableElement; /** * The RtfShape provides the interface for adding shapes to * the RTF document. This will only work for Word 97+, older * Word versions are not supported by this class.<br /><br /> * * Only very simple shapes are directly supported by the RtfShape. * For more complex shapes you will have to read the RTF * specification (iText follows the 1.6 specification) and add * the desired properties via the RtfShapeProperty.<br /><br /> * * One thing to keep in mind is that distances are not expressed * in the standard iText point, but in EMU where 1 inch = 914400 EMU * or 1 cm = 360000 EMU. * * @version $Id: RtfShape.java 3591 2008-08-27 17:19:27Z howard_s $ * @author Mark Hall (Mark.Hall@mail.room3b.eu) * @author Thomas Bickel (tmb99@inode.at) */ public class RtfShape extends RtfAddableElement { /** * Constant for a Picture Frame. */ public static final int SHAPE_PICTURE_FRAME = 75; /** * Constant for a free form shape. The shape verticies must * be specified with an array of Point objects in a * RtfShapeProperty with the name PROPERTY_VERTICIES. */ public static final int SHAPE_FREEFORM = 0; /** * Constant for a rectangle. */ public static final int SHAPE_RECTANGLE = 1; /** * Constant for a rounded rectangle. The roundness is * set via a RtfShapeProperty with the name PROPERTY_ADJUST_VALUE. */ public static final int SHAPE_ROUND_RECTANGLE = 2; /** * Constant for an ellipse. Use this to create circles. */ public static final int SHAPE_ELLIPSE = 3; /** * Constant for a diamond. */ public static final int SHAPE_DIAMOND = 4; /** * Constant for a isosceles triangle. */ public static final int SHAPE_TRIANGLE_ISOSCELES = 5; /** * Constant for a right triangle. */ public static final int SHAPE_TRIANGLE_RIGHT = 6; /** * Constant for a parallelogram. */ public static final int SHAPE_PARALLELOGRAM = 7; /** * Constant for a trapezoid. */ public static final int SHAPE_TRAPEZOID = 8; /** * Constant for a hexagon. */ public static final int SHAPE_HEXAGON = 9; /** * Constant for an ocatagon. */ public static final int SHAPE_OCTAGON = 10; /** * Constant for a star. */ public static final int SHAPE_STAR = 12; /** * Constant for an arrow. */ public static final int SHAPE_ARROW = 13; /** * Constant for a thick arrow. */ public static final int SHAPE_ARROR_THICK = 14; /** * Constant for a home plate style shape. */ public static final int SHAPE_HOME_PLATE = 15; /** * Constant for a cube shape. */ public static final int SHAPE_CUBE = 16; /** * Constant for a balloon shape. */ public static final int SHAPE_BALLOON = 17; /** * Constant for a seal shape. */ public static final int SHAPE_SEAL = 18; /** * Constant for an arc shape. */ public static final int SHAPE_ARC = 19; /** * Constant for a line shape. */ public static final int SHAPE_LINE = 20; /** * Constant for a can shape. */ public static final int SHAPE_CAN = 22; /** * Constant for a donut shape. */ public static final int SHAPE_DONUT = 23; /** * Text is not wrapped around the shape. */ public static final int SHAPE_WRAP_NONE = 0; /** * Text is wrapped to the top and bottom. */ public static final int SHAPE_WRAP_TOP_BOTTOM = 1; /** * Text is wrapped on the left and right side. */ public static final int SHAPE_WRAP_BOTH = 2; /** * Text is wrapped on the left side. */ public static final int SHAPE_WRAP_LEFT = 3; /** * Text is wrapped on the right side. */ public static final int SHAPE_WRAP_RIGHT = 4; /** * Text is wrapped on the largest side. */ public static final int SHAPE_WRAP_LARGEST = 5; /** * Text is tightly wrapped on the left and right side. */ public static final int SHAPE_WRAP_TIGHT_BOTH = 6; /** * Text is tightly wrapped on the left side. */ public static final int SHAPE_WRAP_TIGHT_LEFT = 7; /** * Text is tightly wrapped on the right side. */ public static final int SHAPE_WRAP_TIGHT_RIGHT = 8; /** * Text is tightly wrapped on the largest side. */ public static final int SHAPE_WRAP_TIGHT_LARGEST = 9; /** * Text is wrapped through the shape. */ public static final int SHAPE_WRAP_THROUGH = 10; /** * The shape nr is a random unique id. */ private int shapeNr = 0; /** * The shape type. */ private int type = 0; /** * The RtfShapePosition that defines position settings for this RtfShape. */ private RtfShapePosition position = null; /** * A HashMap with RtfShapePropertys that define further shape properties. */ private HashMap properties = null; /** * The wrapping mode. Defaults to SHAPE_WRAP_NONE; */ private int wrapping = SHAPE_WRAP_NONE; /** * Text that is contained in the shape. */ private String shapeText = ""; /** * Constructs a new RtfShape of a given shape at the given RtfShapePosition. * * @param type The type of shape to create. * @param position The RtfShapePosition to create this RtfShape at. */ public RtfShape(int type, RtfShapePosition position) { this.type = type; this.position = position; this.properties = new HashMap(); } /** * Sets a property. * * @param property The property to set for this RtfShape. */ public void setProperty(RtfShapeProperty property) { property.setRtfDocument(this.doc); this.properties.put(property.getName(), property); } /** * Sets the text to display in this RtfShape. * * @param shapeText The text to display. */ public void setShapeText(String shapeText) { this.shapeText = shapeText; } /** * Set the wrapping mode. * * @param wrapping The wrapping mode to use for this RtfShape. */ public void setWrapping(int wrapping) { this.wrapping = wrapping; } /** * Writes the RtfShape. Some settings are automatically translated into * or require other properties and these are set first. */ public void writeContent(final OutputStream result) throws IOException { this.shapeNr = this.doc.getRandomInt(); this.properties.put("ShapeType", new RtfShapeProperty("ShapeType", this.type)); if (this.position.isShapeBelowText()) { this.properties.put("fBehindDocument", new RtfShapeProperty("fBehindDocument", true)); } if (this.inTable) { this.properties.put("fLayoutInCell", new RtfShapeProperty("fLayoutInCell", true)); } if (this.properties.containsKey("posh")) { this.position.setIgnoreXRelative(true); } if (this.properties.containsKey("posv")) { this.position.setIgnoreYRelative(true); } result.write(OPEN_GROUP); result.write(DocWriter.getISOBytes("\\shp")); result.write(DocWriter.getISOBytes("\\shplid")); result.write(intToByteArray(this.shapeNr)); this.position.writeContent(result); switch (this.wrapping) { case SHAPE_WRAP_NONE: result.write(DocWriter.getISOBytes("\\shpwr3")); break; case SHAPE_WRAP_TOP_BOTTOM: result.write(DocWriter.getISOBytes("\\shpwr1")); break; case SHAPE_WRAP_BOTH: result.write(DocWriter.getISOBytes("\\shpwr2")); result.write(DocWriter.getISOBytes("\\shpwrk0")); break; case SHAPE_WRAP_LEFT: result.write(DocWriter.getISOBytes("\\shpwr2")); result.write(DocWriter.getISOBytes("\\shpwrk1")); break; case SHAPE_WRAP_RIGHT: result.write(DocWriter.getISOBytes("\\shpwr2")); result.write(DocWriter.getISOBytes("\\shpwrk2")); break; case SHAPE_WRAP_LARGEST: result.write(DocWriter.getISOBytes("\\shpwr2")); result.write(DocWriter.getISOBytes("\\shpwrk3")); break; case SHAPE_WRAP_TIGHT_BOTH: result.write(DocWriter.getISOBytes("\\shpwr4")); result.write(DocWriter.getISOBytes("\\shpwrk0")); break; case SHAPE_WRAP_TIGHT_LEFT: result.write(DocWriter.getISOBytes("\\shpwr4")); result.write(DocWriter.getISOBytes("\\shpwrk1")); break; case SHAPE_WRAP_TIGHT_RIGHT: result.write(DocWriter.getISOBytes("\\shpwr4")); result.write(DocWriter.getISOBytes("\\shpwrk2")); break; case SHAPE_WRAP_TIGHT_LARGEST: result.write(DocWriter.getISOBytes("\\shpwr4")); result.write(DocWriter.getISOBytes("\\shpwrk3")); break; case SHAPE_WRAP_THROUGH: result.write(DocWriter.getISOBytes("\\shpwr5")); break; default: result.write(DocWriter.getISOBytes("\\shpwr3")); } if (this.inHeader) { result.write(DocWriter.getISOBytes("\\shpfhdr1")); } this.doc.outputDebugLinebreak(result); result.write(OPEN_GROUP); result.write(DocWriter.getISOBytes("\\*\\shpinst")); Iterator it = this.properties.values().iterator(); while (it.hasNext()) { RtfShapeProperty rsp = (RtfShapeProperty) it.next(); rsp.setRtfDocument(this.doc); rsp.writeContent(result); } if (!this.shapeText.equals("")) { result.write(OPEN_GROUP); result.write(DocWriter.getISOBytes("\\shptxt")); result.write(DELIMITER); result.write(DocWriter.getISOBytes(this.shapeText)); result.write(CLOSE_GROUP); } result.write(CLOSE_GROUP); this.doc.outputDebugLinebreak(result); result.write(CLOSE_GROUP); } }