Revision: 15197
http://gate.svn.sourceforge.net/gate/?rev=15197&view=rev
Author: markagreenwood
Date: 2012-01-23 07:53:08 +0000 (Mon, 23 Jan 2012)
Log Message:
-----------
added the print component from the main tree as this plugin still needs it
Added Paths:
-----------
plugins/trunk/obsolete/document-editor/src/gate/print/
plugins/trunk/obsolete/document-editor/src/gate/print/JComponentPrinter.java
Added:
plugins/trunk/obsolete/document-editor/src/gate/print/JComponentPrinter.java
===================================================================
---
plugins/trunk/obsolete/document-editor/src/gate/print/JComponentPrinter.java
(rev 0)
+++
plugins/trunk/obsolete/document-editor/src/gate/print/JComponentPrinter.java
2012-01-23 07:53:08 UTC (rev 15197)
@@ -0,0 +1,192 @@
+/*
+ * Copyright (c) 1995-2010, The University of Sheffield. See the file
+ * COPYRIGHT.txt in the software or at http://gate.ac.uk/gate/COPYRIGHT.txt
+ *
+ * This file is part of GATE (see http://gate.ac.uk/), and is free
+ * software, licenced under the GNU Library General Public License,
+ * Version 2, June 1991 (in the distribution as file licence.html,
+ * and also available at http://gate.ac.uk/gate/licence.html).
+ *
+ * Valentin Tablan 07/12/2001
+ *
+ * $Id: JComponentPrinter.java 12950 2010-08-11 18:58:56Z bensonmargulies $
+ *
+ */
+package gate.print;
+
+import java.awt.*;
+import java.awt.print.*;
+
+import javax.swing.JComponent;
+import javax.swing.text.BadLocationException;
+import javax.swing.text.JTextComponent;
+
+import gate.Gate;
+import gate.event.StatusListener;
+import gate.util.Err;
+
+
+/**
+ * Will scale the component so it fits on a page horizontally
+ */
+public class JComponentPrinter implements Pageable{
+
+ public JComponentPrinter(JComponent component, PageFormat format){
+ this.component = component;
+ this.pageFormat = format;
+ //find the scale factor; we will not enlarge as it would look ugly
+ Rectangle componentBounds = component.getBounds(null);
+ scaleFactor = Math.min(format.getImageableWidth() /componentBounds.width,
+ 1);
+
+ //calculate the pages count
+ pageCount = (int)((componentBounds.height * scaleFactor +
+ pageFormat.getImageableHeight() - 1) /
+ pageFormat.getImageableHeight());
+ }
+
+ /**
+ * Returns the number of pages over which the canvas
+ * will be drawn.
+ */
+ public int getNumberOfPages() {
+ return pageCount;
+ }
+
+
+ /**
+ * Returns the PageFormat of the page specified by
+ * pageIndex. The PageFormat is the same for all pages.
+ *
+ * @param pageIndex the zero based index of the page whose
+ * PageFormat is being requested
+ * @return the PageFormat describing the size and
+ * orientation.
+ * @exception IndexOutOfBoundsException
+ * the Pageable does not contain the requested
+ * page.
+ */
+ public PageFormat getPageFormat(int pageIndex)
+ throws IndexOutOfBoundsException {
+ if (pageIndex >= pageCount) throw new IndexOutOfBoundsException();
+ return pageFormat;
+ }
+
+
+ /**
+ * Returns the <code>Printable</code> instance responsible for
+ * rendering the page specified by <code>pageIndex</code>.
+ *
+ * @param pageIndex the zero based index of the page whose
+ * Printable is being requested
+ * @return the Printable that renders the page.
+ * @exception IndexOutOfBoundsException
+ * the Pageable does not contain the requested
+ * page.
+ */
+ public Printable getPrintable(int pageIndex)
+ throws IndexOutOfBoundsException {
+ if (pageIndex >= pageCount)throw new IndexOutOfBoundsException();
+
+ double originY = pageIndex * pageFormat.getImageableHeight() / scaleFactor;
+ if(component instanceof JTextComponent){
+ JTextComponent tComp = (JTextComponent)component;
+ //move the origin up towards the first inter-row space
+ int location = tComp.viewToModel(new Point(0, (int)originY));
+ try{
+ Rectangle rect = tComp.modelToView(location);
+ originY = rect.y + rect.height - 1;
+ }catch(BadLocationException ble){
+ ble.printStackTrace(Err.getPrintWriter());
+ }
+ }
+
+ return new TranslatedPrintable(originY);
+ }
+
+
+/**
+ * This inner class's sole responsibility is to translate
+ * the coordinate system before invoking a canvas's
+ * painter. The coordinate system is translated in order
+ * to get the desired portion of a canvas to line up with
+ * the top of a page.
+ */
+ public class TranslatedPrintable implements Printable {
+ public TranslatedPrintable(double originY){
+ this.originY = originY;
+ }
+
+ /**
+ * Prints the page at the specified index into the specified
+ * {@link Graphics} context in the specified
+ * format. A PrinterJob calls the
+ * Printableinterface to request that a page be
+ * rendered into the context specified by
+ * graphics. The format of the page to be drawn is
+ * specified by pageFormat. The zero based index
+ * of the requested page is specified by pageIndex.
+ * If the requested page does not exist then this method returns
+ * NO_SUCH_PAGE; otherwise PAGE_EXISTS is returned.
+ * The Graphics class or subclass implements the
+ * {@link PrinterGraphics} interface to provide additional
+ * information. If the Printable object
+ * aborts the print job then it throws a {@link PrinterException}.
+ * @param graphics the context into which the page is drawn
+ * @param pageFormat the size and orientation of the page being drawn
+ * @param pageIndex the zero based index of the page to be drawn
+ * @return PAGE_EXISTS if the page is rendered successfully
+ * or NO_SUCH_PAGE if pageIndex specifies a
+ * non-existent page.
+ * @exception java.awt.print.PrinterException
+ * thrown when the print job is terminated.
+ */
+ public int print(Graphics graphics, PageFormat pageFormat, int pageIndex)
+ throws PrinterException {
+
+ Rectangle componentBounds = component.getBounds(null);
+ Graphics2D g2 = (Graphics2D) graphics;
+ g2.translate(pageFormat.getImageableX() - componentBounds.x,
+ pageFormat.getImageableY() - originY - componentBounds.y);
+ g2.scale(scaleFactor, scaleFactor);
+
+ if(component instanceof JTextComponent){
+ JTextComponent tComp = (JTextComponent)component;
+ double nextOriginY = (pageIndex + 1) * pageFormat.getImageableHeight()
/
+ scaleFactor;
+ int location = tComp.viewToModel(new Point(0, (int)nextOriginY));
+ try{
+ Rectangle rect = tComp.modelToView(location);
+ nextOriginY = rect.y;
+ }catch(BadLocationException ble){
+ ble.printStackTrace(Err.getPrintWriter());
+ }
+ Rectangle clip = g2.getClip().getBounds();
+ clip.setSize((int)clip.getWidth(), (int)(nextOriginY - originY) - 1);
+ g2.setClip(clip);
+ }
+
+ boolean wasBuffered = component.isDoubleBuffered();
+ component.paint(g2);
+ component.setDoubleBuffered(wasBuffered);
+
+ //fire the events
+ StatusListener sListener = (StatusListener)Gate.getListeners().
+ get("gate.event.StatusListener");
+ if(sListener != null){
+ sListener.statusChanged("Printing page " + (pageIndex + 1) +
+ "/" + pageCount);
+ }
+
+ return PAGE_EXISTS;
+ }
+
+ double originY;
+ }
+
+
+ JComponent component;
+ PageFormat pageFormat;
+ int pageCount;
+ double scaleFactor;
+}
\ No newline at end of file
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