Java tutorial
/* * JasperReports - Free Java Reporting Library. * Copyright (C) 2001 - 2019 TIBCO Software Inc. All rights reserved. * http://www.jaspersoft.com * * Unless you have purchased a commercial license agreement from Jaspersoft, * the following license terms apply: * * This program is part of JasperReports. * * JasperReports is free software: you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * JasperReports is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public License * along with JasperReports. If not, see <http://www.gnu.org/licenses/>. */ package net.sf.jasperreports.swing; import java.awt.BorderLayout; import java.awt.Color; import java.awt.Container; import java.awt.Cursor; import java.awt.Dimension; import java.awt.Graphics; import java.awt.Graphics2D; import java.awt.GridBagConstraints; import java.awt.Image; import java.awt.Point; import java.awt.Rectangle; import java.awt.Toolkit; import java.awt.event.KeyEvent; import java.awt.event.KeyListener; import java.awt.event.MouseEvent; import java.awt.event.MouseListener; import java.awt.event.MouseMotionListener; import java.awt.geom.AffineTransform; import java.awt.image.BufferedImage; import java.util.ArrayList; import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.ListIterator; import java.util.Map; import java.util.Map.Entry; import javax.swing.ImageIcon; import javax.swing.JLabel; import javax.swing.JOptionPane; import javax.swing.JPanel; import javax.swing.JViewport; import javax.swing.SwingUtilities; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import net.sf.jasperreports.engine.JRConstants; import net.sf.jasperreports.engine.JRException; import net.sf.jasperreports.engine.JRPrintAnchorIndex; import net.sf.jasperreports.engine.JRPrintElement; import net.sf.jasperreports.engine.JRPrintFrame; import net.sf.jasperreports.engine.JRPrintHyperlink; import net.sf.jasperreports.engine.JRPrintImage; import net.sf.jasperreports.engine.JRPrintImageAreaHyperlink; import net.sf.jasperreports.engine.JRPrintPage; import net.sf.jasperreports.engine.JRPropertiesUtil; import net.sf.jasperreports.engine.JRRuntimeException; import net.sf.jasperreports.engine.JasperPrint; import net.sf.jasperreports.engine.JasperPrintManager; import net.sf.jasperreports.engine.PrintPageFormat; import net.sf.jasperreports.engine.PrintPart; import net.sf.jasperreports.engine.PrintParts; import net.sf.jasperreports.engine.export.JRGraphics2DExporter; import net.sf.jasperreports.engine.type.HyperlinkTypeEnum; import net.sf.jasperreports.export.SimpleExporterInput; import net.sf.jasperreports.export.SimpleGraphics2DExporterOutput; import net.sf.jasperreports.export.SimpleGraphics2DReportConfiguration; import net.sf.jasperreports.renderers.AreaHyperlinksRenderable; import net.sf.jasperreports.renderers.Renderable; import net.sf.jasperreports.renderers.RenderersCache; import net.sf.jasperreports.view.JRHyperlinkListener; /** * @author Teodor Danciu (teodord@users.sourceforge.net) */ public class JRViewerPanel extends JPanel implements JRHyperlinkListener, JRViewerListener { private static final Log log = LogFactory.getLog(JRViewerPanel.class); private static final long serialVersionUID = JRConstants.SERIAL_VERSION_UID; /** * The DPI of the generated report. */ public static final int REPORT_RESOLUTION = 72; private javax.swing.JLabel jLabel1; private javax.swing.JPanel jPanel4; private javax.swing.JPanel jPanel5; private javax.swing.JPanel jPanel6; private javax.swing.JPanel jPanel7; private javax.swing.JPanel jPanel8; private javax.swing.JPanel jPanel9; private PageRenderer lblPage; private javax.swing.JPanel pnlInScroll; private javax.swing.JPanel pnlLinks; private javax.swing.JPanel pnlPage; private javax.swing.JTabbedPane pnlTabs; private javax.swing.JScrollPane scrollPane; protected final JRViewerController viewerContext; private JRGraphics2DExporter exporter; private boolean pageError; private int downX; private int downY; private boolean pnlTabsChangeListenerEnabled = true; private List<JRHyperlinkListener> hyperlinkListeners = new ArrayList<JRHyperlinkListener>(); private Map<JPanel, JRPrintHyperlink> linksMap = new HashMap<JPanel, JRPrintHyperlink>(); /** * the screen resolution. */ private int screenResolution = REPORT_RESOLUTION; /** * the zoom ratio adjusted to the screen resolution. */ protected float realZoom; private MouseListener mouseListener = new java.awt.event.MouseAdapter() { @Override public void mouseClicked(java.awt.event.MouseEvent evt) { hyperlinkClicked(evt); } }; protected KeyListener keyNavigationListener = new KeyListener() { @Override public void keyTyped(KeyEvent evt) { } @Override public void keyPressed(KeyEvent evt) { keyNavigate(evt); } @Override public void keyReleased(KeyEvent evt) { } }; public JRViewerPanel(JRViewerController viewerContext) { this.viewerContext = viewerContext; this.viewerContext.addListener(this); setScreenDetails(); initComponents(); addHyperlinkListener(this); } private void initComponents() { scrollPane = new javax.swing.JScrollPane(); scrollPane.getHorizontalScrollBar().setUnitIncrement(5); scrollPane.getVerticalScrollBar().setUnitIncrement(5); pnlTabs = new javax.swing.JTabbedPane(); pnlInScroll = new javax.swing.JPanel(); pnlPage = new javax.swing.JPanel(); jPanel4 = new javax.swing.JPanel(); pnlLinks = new javax.swing.JPanel(); jPanel5 = new javax.swing.JPanel(); jPanel6 = new javax.swing.JPanel(); jPanel7 = new javax.swing.JPanel(); jPanel8 = new javax.swing.JPanel(); jLabel1 = new javax.swing.JLabel(); jPanel9 = new javax.swing.JPanel(); lblPage = new PageRenderer(); setMinimumSize(new java.awt.Dimension(450, 150)); setPreferredSize(new java.awt.Dimension(450, 150)); setLayout(new java.awt.BorderLayout()); addComponentListener(new java.awt.event.ComponentAdapter() { @Override public void componentResized(java.awt.event.ComponentEvent evt) { pnlMainComponentResized(evt); } }); pnlTabs.addChangeListener(new javax.swing.event.ChangeListener() { @Override public void stateChanged(javax.swing.event.ChangeEvent evt) { pnlTabsStateChanged(evt); } }); add(pnlTabs, java.awt.BorderLayout.CENTER); scrollPane.setHorizontalScrollBarPolicy(javax.swing.ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS); scrollPane.setVerticalScrollBarPolicy(javax.swing.ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS); pnlInScroll.setLayout(new java.awt.GridBagLayout()); pnlPage.setLayout(new java.awt.BorderLayout()); pnlPage.setMinimumSize(new java.awt.Dimension(100, 100)); pnlPage.setPreferredSize(new java.awt.Dimension(100, 100)); jPanel4.setLayout(new java.awt.GridBagLayout()); jPanel4.setMinimumSize(new java.awt.Dimension(100, 120)); jPanel4.setPreferredSize(new java.awt.Dimension(100, 120)); pnlLinks.setLayout(null); pnlLinks.setMinimumSize(new java.awt.Dimension(5, 5)); pnlLinks.setPreferredSize(new java.awt.Dimension(5, 5)); pnlLinks.setOpaque(false); pnlLinks.addMouseListener(new java.awt.event.MouseAdapter() { @Override public void mousePressed(java.awt.event.MouseEvent evt) { pnlLinksMousePressed(evt); } @Override public void mouseReleased(java.awt.event.MouseEvent evt) { pnlLinksMouseReleased(evt); } }); pnlLinks.addMouseMotionListener(new java.awt.event.MouseMotionAdapter() { @Override public void mouseDragged(java.awt.event.MouseEvent evt) { pnlLinksMouseDragged(evt); } }); GridBagConstraints gridBagConstraints = new java.awt.GridBagConstraints(); gridBagConstraints.gridx = 0; gridBagConstraints.gridy = 0; gridBagConstraints.gridwidth = 2; gridBagConstraints.gridheight = 2; gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH; jPanel4.add(pnlLinks, gridBagConstraints); jPanel5.setBackground(java.awt.Color.gray); jPanel5.setMinimumSize(new java.awt.Dimension(5, 5)); jPanel5.setPreferredSize(new java.awt.Dimension(5, 5)); gridBagConstraints = new java.awt.GridBagConstraints(); gridBagConstraints.gridx = 2; gridBagConstraints.gridy = 1; gridBagConstraints.fill = java.awt.GridBagConstraints.VERTICAL; jPanel4.add(jPanel5, gridBagConstraints); jPanel6.setMinimumSize(new java.awt.Dimension(5, 5)); jPanel6.setPreferredSize(new java.awt.Dimension(5, 5)); gridBagConstraints = new java.awt.GridBagConstraints(); gridBagConstraints.gridx = 0; gridBagConstraints.gridy = 2; jPanel4.add(jPanel6, gridBagConstraints); jPanel7.setBackground(java.awt.Color.gray); jPanel7.setMinimumSize(new java.awt.Dimension(5, 5)); jPanel7.setPreferredSize(new java.awt.Dimension(5, 5)); gridBagConstraints = new java.awt.GridBagConstraints(); gridBagConstraints.gridx = 1; gridBagConstraints.gridy = 2; gridBagConstraints.fill = java.awt.GridBagConstraints.HORIZONTAL; jPanel4.add(jPanel7, gridBagConstraints); jPanel8.setBackground(java.awt.Color.gray); jPanel8.setMinimumSize(new java.awt.Dimension(5, 5)); jPanel8.setPreferredSize(new java.awt.Dimension(5, 5)); jLabel1.setText("jLabel1"); jPanel8.add(jLabel1); gridBagConstraints = new java.awt.GridBagConstraints(); gridBagConstraints.gridx = 2; gridBagConstraints.gridy = 2; jPanel4.add(jPanel8, gridBagConstraints); jPanel9.setMinimumSize(new java.awt.Dimension(5, 5)); jPanel9.setPreferredSize(new java.awt.Dimension(5, 5)); gridBagConstraints = new java.awt.GridBagConstraints(); gridBagConstraints.gridx = 2; gridBagConstraints.gridy = 0; jPanel4.add(jPanel9, gridBagConstraints); lblPage.setBackground(java.awt.Color.white); lblPage.setBorder(javax.swing.BorderFactory.createLineBorder(new java.awt.Color(0, 0, 0))); lblPage.setOpaque(true); gridBagConstraints = new java.awt.GridBagConstraints(); gridBagConstraints.gridx = 0; gridBagConstraints.gridy = 0; gridBagConstraints.gridwidth = 2; gridBagConstraints.gridheight = 2; gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH; gridBagConstraints.weightx = 1.0; gridBagConstraints.weighty = 1.0; jPanel4.add(lblPage, gridBagConstraints); pnlPage.add(jPanel4, java.awt.BorderLayout.CENTER); gridBagConstraints = new java.awt.GridBagConstraints(); gridBagConstraints.insets = new java.awt.Insets(5, 5, 5, 5); pnlInScroll.add(pnlPage, gridBagConstraints); scrollPane.setViewportView(pnlInScroll); add(scrollPane, java.awt.BorderLayout.CENTER); } public KeyListener getKeyNavigationListener() { return keyNavigationListener; } protected void setScreenDetails() { screenResolution = Toolkit.getDefaultToolkit().getScreenResolution(); } public void addHyperlinkListener(JRHyperlinkListener listener) { hyperlinkListeners.add(listener); } public void removeHyperlinkListener(JRHyperlinkListener listener) { hyperlinkListeners.remove(listener); } public JRHyperlinkListener[] getHyperlinkListeners() { return hyperlinkListeners.toArray(new JRHyperlinkListener[hyperlinkListeners.size()]); } @Override public void gotoHyperlink(JRPrintHyperlink hyperlink) { switch (hyperlink.getHyperlinkTypeValue()) { case REFERENCE: { if (isOnlyHyperlinkListener()) { System.out.println("Hyperlink reference : " + hyperlink.getHyperlinkReference()); System.out.println("Implement your own JRHyperlinkListener to manage this type of event."); } break; } case LOCAL_ANCHOR: { if (hyperlink.getHyperlinkAnchor() != null) { Map<String, JRPrintAnchorIndex> anchorIndexes = viewerContext.getJasperPrint().getAnchorIndexes(); JRPrintAnchorIndex anchorIndex = anchorIndexes.get(hyperlink.getHyperlinkAnchor()); if (anchorIndex.getPageIndex() != viewerContext.getPageIndex()) { viewerContext.setPageIndex(anchorIndex.getPageIndex()); viewerContext.refreshPage(); } Container container = pnlInScroll.getParent(); if (container instanceof JViewport) { JViewport viewport = (JViewport) container; int newX = (int) (anchorIndex.getElementAbsoluteX() * realZoom); int newY = (int) (anchorIndex.getElementAbsoluteY() * realZoom); int maxX = pnlInScroll.getWidth() - viewport.getWidth(); int maxY = pnlInScroll.getHeight() - viewport.getHeight(); if (newX < 0) { newX = 0; } if (newX > maxX) { newX = maxX; } if (newY < 0) { newY = 0; } if (newY > maxY) { newY = maxY; } viewport.setViewPosition(new Point(newX, newY)); } } break; } case LOCAL_PAGE: { int page = viewerContext.getPageIndex() + 1; if (hyperlink.getHyperlinkPage() != null) { page = hyperlink.getHyperlinkPage(); } if (page >= 1 && page <= viewerContext.getJasperPrint().getPages().size() && page != viewerContext.getPageIndex() + 1) { viewerContext.setPageIndex(page - 1); viewerContext.refreshPage(); Container container = pnlInScroll.getParent(); if (container instanceof JViewport) { JViewport viewport = (JViewport) container; viewport.setViewPosition(new Point(0, 0)); } } break; } case REMOTE_ANCHOR: { if (isOnlyHyperlinkListener()) { System.out.println("Hyperlink reference : " + hyperlink.getHyperlinkReference()); System.out.println("Hyperlink anchor : " + hyperlink.getHyperlinkAnchor()); System.out.println("Implement your own JRHyperlinkListener to manage this type of event."); } break; } case REMOTE_PAGE: { if (isOnlyHyperlinkListener()) { System.out.println("Hyperlink reference : " + hyperlink.getHyperlinkReference()); System.out.println("Hyperlink page : " + hyperlink.getHyperlinkPage()); System.out.println("Implement your own JRHyperlinkListener to manage this type of event."); } break; } case CUSTOM: { if (isOnlyHyperlinkListener()) { System.out.println("Hyperlink of type " + hyperlink.getLinkType()); System.out.println("Implement your own JRHyperlinkListener to manage this type of event."); } break; } case NONE: default: { break; } } } protected boolean isOnlyHyperlinkListener() { int listenerCount; if (hyperlinkListeners == null) { listenerCount = 0; } else { listenerCount = hyperlinkListeners.size(); if (hyperlinkListeners.contains(this)) { --listenerCount; } } return listenerCount == 0; } protected void paintPage(Graphics2D grx) { if (pageError) { paintPageError(grx); return; } try { if (exporter == null) { exporter = getGraphics2DExporter(); } else { exporter.reset(); } exporter.setExporterInput(new SimpleExporterInput(viewerContext.getJasperPrint())); SimpleGraphics2DReportConfiguration configuration = new SimpleGraphics2DReportConfiguration(); configuration.setPageIndex(viewerContext.getPageIndex()); configuration.setZoomRatio(realZoom); configuration.setOffsetX(1); //lblPage border configuration.setOffsetY(1); exporter.setConfiguration(configuration); SimpleGraphics2DExporterOutput output = new SimpleGraphics2DExporterOutput(); Graphics2D g = (Graphics2D) grx.create(); output.setGraphics2D(g); exporter.setExporterOutput(output); try { exporter.exportReport(); } finally { g.dispose(); } } catch (Exception e) { if (log.isErrorEnabled()) { log.error("Page paint error.", e); } pageError = true; paintPageError(grx); SwingUtilities.invokeLater(new Runnable() { @Override public void run() { JOptionPane.showMessageDialog(JRViewerPanel.this, viewerContext.getBundleString("error.displaying")); } }); } } protected JRGraphics2DExporter getGraphics2DExporter() throws JRException { return new JRGraphics2DExporter(viewerContext.getJasperReportsContext()) { @Override protected RenderersCache getRenderersCache() { return viewerContext.getRenderersCache(); } }; } protected void paintPageError(Graphics2D grx) { AffineTransform origTransform = grx.getTransform(); AffineTransform transform = new AffineTransform(); transform.translate(1, 1); transform.scale(realZoom, realZoom); grx.transform(transform); try { drawPageError(grx); } finally { grx.setTransform(origTransform); } } protected void drawPageError(Graphics grx) { PrintPageFormat pageFormat = viewerContext.getPageFormat(); grx.setColor(Color.white); grx.fillRect(0, 0, pageFormat.getPageWidth() + 1, pageFormat.getPageHeight() + 1); } class PageRenderer extends JLabel { private static final long serialVersionUID = JRConstants.SERIAL_VERSION_UID; private boolean renderImage; public PageRenderer() { } @Override public void paintComponent(Graphics g) { if (isRenderImage()) { super.paintComponent(g); } else { Graphics2D grx = (Graphics2D) g.create(); try { paintPage(grx); } finally { grx.dispose(); } } } public boolean isRenderImage() { return renderImage; } public void setRenderImage(boolean renderImage) { this.renderImage = renderImage; } } void pnlMainComponentResized(java.awt.event.ComponentEvent evt) {//GEN-FIRST:event_pnlMainComponentResized // Add your handling code here: if (viewerContext.isFitPage()) { viewerContext.fitPage(); } else if (viewerContext.isFitWidth()) { viewerContext.fitWidth(); } }//GEN-LAST:event_pnlMainComponentResized protected void fitPage() { PrintPageFormat pageFormat = viewerContext.getPageFormat(); float heightRatio = getPageCanvasHeight() / pageFormat.getPageHeight(); float widthRatio = getPageCanvasWidth() / pageFormat.getPageWidth(); setRealZoomRatio(heightRatio < widthRatio ? heightRatio : widthRatio); } protected void fitWidth() { setRealZoomRatio(getPageCanvasWidth() / viewerContext.getPageFormat().getPageWidth()); } protected float getPageCanvasWidth() { return (float) pnlInScroll.getVisibleRect().getWidth() - 20f; } protected float getPageCanvasHeight() { return (float) pnlInScroll.getVisibleRect().getHeight() - 20f; } void pnlLinksMousePressed(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_pnlLinksMousePressed // Add your handling code here: pnlLinks.setCursor(new Cursor(Cursor.MOVE_CURSOR)); downX = evt.getX(); downY = evt.getY(); }//GEN-LAST:event_pnlLinksMousePressed void pnlLinksMouseDragged(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_pnlLinksMouseDragged // Add your handling code here: Container container = pnlInScroll.getParent(); if (container instanceof JViewport) { JViewport viewport = (JViewport) container; Point point = viewport.getViewPosition(); int newX = point.x - (evt.getX() - downX); int newY = point.y - (evt.getY() - downY); int maxX = pnlInScroll.getWidth() - viewport.getWidth(); int maxY = pnlInScroll.getHeight() - viewport.getHeight(); if (newX < 0) { newX = 0; } if (newX > maxX) { newX = maxX; } if (newY < 0) { newY = 0; } if (newY > maxY) { newY = maxY; } viewport.setViewPosition(new Point(newX, newY)); } }//GEN-LAST:event_pnlLinksMouseDragged void pnlLinksMouseReleased(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_pnlLinksMouseReleased // Add your handling code here: pnlLinks.setCursor(new Cursor(Cursor.DEFAULT_CURSOR)); }//GEN-LAST:event_pnlLinksMouseReleased private void pnlTabsStateChanged(javax.swing.event.ChangeEvent evt) {//GEN-FIRST:event_pnlTabsStateChanged if (pnlTabsChangeListenerEnabled) { ((JPanel) pnlTabs.getSelectedComponent()).add(scrollPane); Integer pgIdx = 0; Integer partIndex = pnlTabs.getSelectedIndex(); if (partIndex > 0) { JasperPrint jasperPrint = viewerContext.getJasperPrint(); PrintParts parts = jasperPrint == null ? null : jasperPrint.getParts(); if (parts != null && parts.hasParts()) { partIndex = parts.startsAtZero() ? partIndex : partIndex - 1; pgIdx = parts.getStartPageIndex(partIndex); } } viewerContext.setPageIndex(pgIdx); viewerContext.refreshPage(); } }//GEN-LAST:event_pnlTabsStateChanged protected void pageChanged() { if (viewerContext.hasPages()) { pageError = false; if (viewerContext.getJasperPrint().hasParts()) { PrintParts parts = viewerContext.getJasperPrint().getParts(); Integer pageIndex = viewerContext.getPageIndex(); Integer partIndex = parts.getPartIndex(pageIndex); Integer tabIndex = partIndex - (parts.startsAtZero() ? 1 : 0); if (tabIndex < pnlTabs.getComponentCount()) { pnlTabsChangeListenerEnabled = false; pnlTabs.setSelectedIndex(tabIndex); ((JPanel) pnlTabs.getSelectedComponent()).add(scrollPane); pnlTabsChangeListenerEnabled = true; } } } } protected void refreshTabs() { pnlTabsChangeListenerEnabled = false; pnlTabs.removeAll(); removeAll(); JasperPrint jasperPrint = viewerContext.getJasperPrint(); PrintParts parts = jasperPrint == null ? null : jasperPrint.getParts(); if (parts == null || !parts.hasParts()) { add(scrollPane, java.awt.BorderLayout.CENTER); } else { if (!parts.startsAtZero()) { JPanel partTab = new JPanel(); partTab.setLayout(new BorderLayout()); partTab.setName(viewerContext.getJasperPrint().getName()); pnlTabs.add(partTab); } for (Iterator<Entry<Integer, PrintPart>> it = parts.partsIterator(); it.hasNext();) { PrintPart part = it.next().getValue(); JPanel partTab = new JPanel(); partTab.setLayout(new BorderLayout()); partTab.setName(part.getName()); pnlTabs.add(partTab); } add(pnlTabs, java.awt.BorderLayout.CENTER); } pnlTabsChangeListenerEnabled = true; } protected void refreshPage() { if (!viewerContext.hasPages()) { pnlPage.setVisible(false); if (viewerContext.getJasperPrint() != null) { JOptionPane.showMessageDialog(this, viewerContext.getBundleString("no.pages")); } return; } pnlPage.setVisible(true); PrintPageFormat pageFormat = viewerContext.getPageFormat(); Dimension dim = new Dimension((int) (pageFormat.getPageWidth() * realZoom) + 8, // 2 from border, 5 from shadow and 1 extra pixel for image (int) (pageFormat.getPageHeight() * realZoom) + 8); pnlPage.setMaximumSize(dim); pnlPage.setMinimumSize(dim); pnlPage.setPreferredSize(dim); long maxImageSize = JRPropertiesUtil.getInstance(viewerContext.getJasperReportsContext()) .getLongProperty(JRViewer.VIEWER_RENDER_BUFFER_MAX_SIZE); boolean renderImage; if (maxImageSize <= 0) { renderImage = false; } else { long imageSize = ((int) (pageFormat.getPageWidth() * realZoom) + 1) * ((int) (pageFormat.getPageHeight() * realZoom) + 1); renderImage = imageSize <= maxImageSize; } lblPage.setRenderImage(renderImage); if (renderImage) { setPageImage(); } pnlLinks.removeAll(); linksMap = new HashMap<JPanel, JRPrintHyperlink>(); createHyperlinks(); if (!renderImage) { lblPage.setIcon(null); validate(); repaint(); } } protected void setPageImage() { Image image; if (pageError) { image = getPageErrorImage(); } else { try { image = JasperPrintManager.getInstance(viewerContext.getJasperReportsContext()) .printToImage(viewerContext.getJasperPrint(), viewerContext.getPageIndex(), realZoom); } catch (Exception e) { if (log.isErrorEnabled()) { log.error("Print page to image error.", e); } pageError = true; image = getPageErrorImage(); JOptionPane.showMessageDialog(this, java.util.ResourceBundle .getBundle("net/sf/jasperreports/view/viewer").getString("error.displaying")); } } ImageIcon imageIcon = new ImageIcon(image); lblPage.setIcon(imageIcon); } protected Image getPageErrorImage() { PrintPageFormat pageFormat = viewerContext.getPageFormat(); Image image = new BufferedImage((int) (pageFormat.getPageWidth() * realZoom) + 1, (int) (pageFormat.getPageHeight() * realZoom) + 1, BufferedImage.TYPE_INT_RGB); AffineTransform transform = new AffineTransform(); transform.scale(realZoom, realZoom); Graphics2D grx = (Graphics2D) image.getGraphics(); try { grx.transform(transform); drawPageError(grx); } finally { grx.dispose(); } return image; } protected void zoomChanged() { realZoom = viewerContext.getZoom() * screenResolution / REPORT_RESOLUTION; } protected void createHyperlinks() { List<JRPrintPage> pages = viewerContext.getJasperPrint().getPages(); JRPrintPage page = pages.get(viewerContext.getPageIndex()); createHyperlinks(page.getElements(), 0, 0); } protected void createHyperlinks(List<JRPrintElement> elements, int offsetX, int offsetY) { if (elements != null && elements.size() > 0) { for (Iterator<JRPrintElement> it = elements.iterator(); it.hasNext();) { JRPrintElement element = it.next(); AreaHyperlinksRenderable imageMap = null; if (element instanceof JRPrintImage) { Renderable renderer = ((JRPrintImage) element).getRenderer(); if (renderer instanceof AreaHyperlinksRenderable) { imageMap = (AreaHyperlinksRenderable) renderer; if (!imageMap.hasImageAreaHyperlinks()) { imageMap = null; } } } boolean hasImageMap = imageMap != null; JRPrintHyperlink hyperlink = null; if (element instanceof JRPrintHyperlink) { hyperlink = (JRPrintHyperlink) element; } boolean hasHyperlink = !hasImageMap && hyperlink != null && hyperlink.getHyperlinkTypeValue() != HyperlinkTypeEnum.NONE; boolean hasTooltip = hyperlink != null && hyperlink.getHyperlinkTooltip() != null; if (hasHyperlink || hasImageMap || hasTooltip) { JPanel link; if (hasImageMap) { Rectangle renderingArea = new Rectangle(0, 0, element.getWidth(), element.getHeight()); link = new ImageMapPanel(renderingArea, imageMap); } else //hasImageMap { link = new JPanel(); if (hasHyperlink) { link.addMouseListener(mouseListener); } } if (hasHyperlink) { link.setCursor(new Cursor(Cursor.HAND_CURSOR)); } link.setLocation((int) ((element.getX() + offsetX) * realZoom), (int) ((element.getY() + offsetY) * realZoom)); link.setSize((int) (element.getWidth() * realZoom), (int) (element.getHeight() * realZoom)); link.setOpaque(false); String toolTip = getHyperlinkTooltip(hyperlink); if (toolTip == null && hasImageMap) { toolTip = "";//not null to register the panel as having a tool tip } link.setToolTipText(toolTip); pnlLinks.add(link); linksMap.put(link, hyperlink); } if (element instanceof JRPrintFrame) { JRPrintFrame frame = (JRPrintFrame) element; int frameOffsetX = offsetX + frame.getX() + frame.getLineBox().getLeftPadding(); int frameOffsetY = offsetY + frame.getY() + frame.getLineBox().getTopPadding(); createHyperlinks(frame.getElements(), frameOffsetX, frameOffsetY); } } } } protected class ImageMapPanel extends JPanel implements MouseListener, MouseMotionListener { private static final long serialVersionUID = JRConstants.SERIAL_VERSION_UID; protected final List<JRPrintImageAreaHyperlink> imageAreaHyperlinks; public ImageMapPanel(Rectangle renderingArea, AreaHyperlinksRenderable imageMap) { try { imageAreaHyperlinks = imageMap.getImageAreaHyperlinks(renderingArea);//FIXMECHART } catch (JRException e) { throw new JRRuntimeException(e); } addMouseListener(this); addMouseMotionListener(this); } @Override public String getToolTipText(MouseEvent event) { String tooltip = null; JRPrintImageAreaHyperlink imageMapArea = getImageMapArea(event); if (imageMapArea != null) { tooltip = getHyperlinkTooltip(imageMapArea.getHyperlink()); } if (tooltip == null) { tooltip = super.getToolTipText(event); } return tooltip; } @Override public void mouseDragged(MouseEvent e) { pnlLinksMouseDragged(e); } @Override public void mouseMoved(MouseEvent e) { JRPrintImageAreaHyperlink imageArea = getImageMapArea(e); if (imageArea != null && imageArea.getHyperlink().getHyperlinkTypeValue() != HyperlinkTypeEnum.NONE) { e.getComponent().setCursor(Cursor.getPredefinedCursor(Cursor.HAND_CURSOR)); } else { e.getComponent().setCursor(Cursor.getDefaultCursor()); } } protected JRPrintImageAreaHyperlink getImageMapArea(MouseEvent e) { return getImageMapArea((int) (e.getX() / realZoom), (int) (e.getY() / realZoom)); } protected JRPrintImageAreaHyperlink getImageMapArea(int x, int y) { JRPrintImageAreaHyperlink image = null; if (imageAreaHyperlinks != null) { for (ListIterator<JRPrintImageAreaHyperlink> it = imageAreaHyperlinks .listIterator(imageAreaHyperlinks.size()); image == null && it.hasPrevious();) { JRPrintImageAreaHyperlink area = it.previous(); if (area.getArea().containsPoint(x, y)) { image = area; } } } return image; } @Override public void mouseClicked(MouseEvent e) { JRPrintImageAreaHyperlink imageMapArea = getImageMapArea(e); if (imageMapArea != null) { hyperlinkClicked(imageMapArea.getHyperlink()); } } @Override public void mouseEntered(MouseEvent e) { } @Override public void mouseExited(MouseEvent e) { } @Override public void mousePressed(MouseEvent e) { e.getComponent().setCursor(Cursor.getPredefinedCursor(Cursor.MOVE_CURSOR)); pnlLinksMousePressed(e); } @Override public void mouseReleased(MouseEvent e) { e.getComponent().setCursor(Cursor.getDefaultCursor()); pnlLinksMouseReleased(e); } } protected String getHyperlinkTooltip(JRPrintHyperlink hyperlink) { String toolTip; toolTip = hyperlink.getHyperlinkTooltip(); if (toolTip == null) { toolTip = getFallbackTooltip(hyperlink); } return toolTip; } protected String getFallbackTooltip(JRPrintHyperlink hyperlink) { String toolTip = null; switch (hyperlink.getHyperlinkTypeValue()) { case REFERENCE: { toolTip = hyperlink.getHyperlinkReference(); break; } case LOCAL_ANCHOR: { if (hyperlink.getHyperlinkAnchor() != null) { toolTip = "#" + hyperlink.getHyperlinkAnchor(); } break; } case LOCAL_PAGE: { if (hyperlink.getHyperlinkPage() != null) { toolTip = "#page " + hyperlink.getHyperlinkPage(); } break; } case REMOTE_ANCHOR: { toolTip = ""; if (hyperlink.getHyperlinkReference() != null) { toolTip = toolTip + hyperlink.getHyperlinkReference(); } if (hyperlink.getHyperlinkAnchor() != null) { toolTip = toolTip + "#" + hyperlink.getHyperlinkAnchor(); } break; } case REMOTE_PAGE: { toolTip = ""; if (hyperlink.getHyperlinkReference() != null) { toolTip = toolTip + hyperlink.getHyperlinkReference(); } if (hyperlink.getHyperlinkPage() != null) { toolTip = toolTip + "#page " + hyperlink.getHyperlinkPage(); } break; } default: { break; } } return toolTip; } void hyperlinkClicked(MouseEvent evt) { JPanel link = (JPanel) evt.getSource(); JRPrintHyperlink element = linksMap.get(link); hyperlinkClicked(element); } protected void hyperlinkClicked(JRPrintHyperlink hyperlink) { try { JRHyperlinkListener listener = null; for (int i = 0; i < hyperlinkListeners.size(); i++) { listener = hyperlinkListeners.get(i); listener.gotoHyperlink(hyperlink); } } catch (JRException e) { if (log.isErrorEnabled()) { log.error("Hyperlink click error.", e); } JOptionPane.showMessageDialog(this, viewerContext.getBundleString("error.hyperlink")); } } protected void setRealZoomRatio(float newZoom) { if (newZoom > 0 && realZoom != newZoom) { float zoom = newZoom * REPORT_RESOLUTION / screenResolution; viewerContext.setZoomRatio(zoom); } } public void setFitWidthZoomRatio() { setRealZoomRatio(getPageCanvasWidth() / viewerContext.getPageFormat().getPageWidth()); } public void setFitPageZoomRatio() { setRealZoomRatio(getPageCanvasHeight() / viewerContext.getPageFormat().getPageHeight()); } protected void keyNavigate(KeyEvent evt) { boolean refresh = true; switch (evt.getKeyCode()) { case KeyEvent.VK_DOWN: case KeyEvent.VK_PAGE_DOWN: dnNavigate(evt); break; case KeyEvent.VK_UP: case KeyEvent.VK_PAGE_UP: upNavigate(evt); break; case KeyEvent.VK_HOME: homeEndNavigate(0); break; case KeyEvent.VK_END: homeEndNavigate(viewerContext.getPageCount() - 1); break; default: refresh = false; } if (refresh) { viewerContext.refreshPage(); } } protected void dnNavigate(KeyEvent evt) { int bottomPosition = scrollPane.getVerticalScrollBar().getValue(); scrollPane.dispatchEvent(evt); if ((scrollPane.getViewport().getHeight() > pnlPage.getHeight() || scrollPane.getVerticalScrollBar().getValue() == bottomPosition) && viewerContext.getPageIndex() < viewerContext.getPageCount() - 1) { viewerContext.setPageIndex(viewerContext.getPageIndex() + 1); if (scrollPane.isEnabled()) { scrollPane.getVerticalScrollBar().setValue(0); } } } protected void upNavigate(KeyEvent evt) { if ((scrollPane.getViewport().getHeight() > pnlPage.getHeight() || scrollPane.getVerticalScrollBar().getValue() == 0) && viewerContext.getPageIndex() > 0) { viewerContext.setPageIndex(viewerContext.getPageIndex() - 1); if (scrollPane.isEnabled()) { scrollPane.getVerticalScrollBar().setValue(scrollPane.getVerticalScrollBar().getMaximum()); } } else { scrollPane.dispatchEvent(evt); } } protected void homeEndNavigate(int pageNumber) { viewerContext.setPageIndex(pageNumber); if (scrollPane.isEnabled()) { scrollPane.getVerticalScrollBar().setValue(0); } } @Override public void viewerEvent(JRViewerEvent event) { switch (event.getCode()) { case JRViewerEvent.EVENT_FIT_PAGE: fitPage(); break; case JRViewerEvent.EVENT_FIT_WIDTH: fitWidth(); break; case JRViewerEvent.EVENT_PAGE_CHANGED: pageChanged(); break; case JRViewerEvent.EVENT_REFRESH_PAGE: refreshPage(); break; case JRViewerEvent.EVENT_ZOOM_CHANGED: zoomChanged(); break; case JRViewerEvent.EVENT_REPORT_LOADED: case JRViewerEvent.EVENT_REPORT_LOAD_FAILED: refreshTabs(); break; } } }