Bonjour tous le monde,
J'ai une application qui utilise beaucoup de tables je veut savoir si je peut avoir un aperçu avant impression de Mes tables.
Merci d'avance.
Bonjour tous le monde,
J'ai une application qui utilise beaucoup de tables je veut savoir si je peut avoir un aperçu avant impression de Mes tables.
Merci d'avance.
tu dois te documenter sur javax.swing.JTable.PrintMode
voila la classe qui permet d'avoir un aperçu sur un Table :
merci pour l'aide.
Code : Sélectionner tout - Visualiser dans une fenêtre à part
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360 public class PrintPreview extends JDialog implements Runnable { protected JScrollPane displayArea; protected int m_wPage; protected int m_hPage; protected int width; protected int height; protected Printable m_target; protected JComboBox m_cbScale; protected PreviewContainer m_preview; protected PageFormat pp_pf = null; protected JButton formatButton; protected JButton shrinkButton; @SuppressWarnings("unused") private static final int INCH = 72; private static boolean bScallToFitOnePage = false; private String msg; JTable table; protected void getThePreviewPages() { m_wPage = (int)(pp_pf.getWidth()); m_hPage = (int)(pp_pf.getHeight()); int scale = getDisplayScale(); width = (int)Math.ceil(m_wPage*scale/100); height = (int)Math.ceil(m_hPage*scale/100); int pageIndex = 0; try { while (true) { BufferedImage img = new BufferedImage(m_wPage, m_hPage, BufferedImage.TYPE_INT_RGB); Graphics g = img.getGraphics(); g.setColor(Color.white); g.fillRect(0, 0, m_wPage, m_hPage); if (bScallToFitOnePage) { m_target.print(g, pp_pf, -1); PagePreview pp = new PagePreview(width, height, img); m_preview.add(pp); break; } else if (m_target.print(g, pp_pf, pageIndex) != Printable.PAGE_EXISTS) break; PagePreview pp = new PagePreview(width, height, img); m_preview.add(pp); pageIndex++; } } catch (OutOfMemoryError om) { JOptionPane.showMessageDialog(this, "image is too big that run out of memory.", "Print Preview", JOptionPane.INFORMATION_MESSAGE); } catch (PrinterException e) { e.printStackTrace(); System.err.println("Printing error: "+e.toString()); } } protected void previewThePages(int orientation) { if (displayArea != null) displayArea.setVisible(false); m_preview = new PreviewContainer(); getThePreviewPages(); displayArea = new JScrollPane(m_preview); getContentPane().add(displayArea, BorderLayout.CENTER); setLocationRelativeTo(null); setVisible(true); System.gc(); } protected void createButtons(JToolBar tb, boolean shrink) { JButton bt = new JButton("Print", new ImageIcon("print.gif")); ActionListener lst = new ActionListener() { public void actionPerformed(ActionEvent e) { try { MessageFormat header = null; MessageFormat footer = null; footer = new MessageFormat("Page {0}"); boolean fitWidth = true; boolean showPrintDialog = true; boolean interactive = true; JTable.PrintMode mode = fitWidth ? JTable.PrintMode.FIT_WIDTH : JTable.PrintMode.NORMAL; @SuppressWarnings("unused") boolean complete=false; header = new MessageFormat(""+msg); complete = table.print(mode, header, footer, showPrintDialog, null, interactive, null); /*/ PrinterJob prnJob = PrinterJob.getPrinterJob(); prnJob.setPrintable(m_target, pp_pf); if (prnJob.printDialog()) { setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR)); prnJob.print(); setCursor(Cursor.getPredefinedCursor(Cursor.DEFAULT_CURSOR)); }*/ dispose(); } catch (PrinterException ex) { ex.printStackTrace(); System.err.println("Printing error: "+ex.toString()); } } }; bt.addActionListener(lst); bt.setAlignmentY(0.5f); bt.setMargin(new Insets(4,6,4,6)); tb.add(bt); if (pp_pf.getOrientation() == PageFormat.PORTRAIT) formatButton = new JButton("Landscape"); else formatButton = new JButton("Portrait"); lst = new ActionListener() { public void actionPerformed(ActionEvent e) { if (pp_pf.getOrientation() == PageFormat.PORTRAIT) { pp_pf.setOrientation(PageFormat.LANDSCAPE); previewThePages(PageFormat.LANDSCAPE); formatButton.setText("Portrait"); } else { pp_pf.setOrientation(PageFormat.PORTRAIT); previewThePages(PageFormat.PORTRAIT); formatButton.setText("Landscape"); } } }; formatButton.addActionListener(lst); formatButton.setAlignmentY(0.5f); formatButton.setMargin(new Insets(4,6,4,6)); tb.add(formatButton); if (shrink) { shrinkButton = new JButton("Shrink to fit"); lst = new ActionListener() { public void actionPerformed(ActionEvent e) { bScallToFitOnePage = !bScallToFitOnePage; previewThePages(pp_pf.getOrientation()); } }; shrinkButton.addActionListener(lst); shrinkButton.setAlignmentY(0.5f); shrinkButton.setMargin(new Insets(4,6,4,6)); tb.add(shrinkButton); } bt = new JButton("Close"); lst = new ActionListener() { public void actionPerformed(ActionEvent e) { dispose(); } }; bt.addActionListener(lst); bt.setAlignmentY(0.5f); bt.setMargin(new Insets(4,6,4,6)); tb.add(bt); } public int getDisplayScale() { String str = m_cbScale.getSelectedItem().toString(); if (str.endsWith("%")) str = str.substring(0, str.length()-1); str = str.trim(); int scale = 0; try { scale = Integer.parseInt(str); } catch (NumberFormatException ex) { return 25; } return scale ; } public PrintPreview(Printable target,JTable table2,String Message) { this(target, "Print Preview", false, table2,Message); } public PrintPreview(Printable target, String title,JTable table2,String Message) { this(target, title, false, table2, Message); } public PrintPreview(Printable target, String title, boolean shrink,JTable table2,String Message) { setTitle(title); table=table2; msg=Message; setIconImage( new ImageIcon( "teloptica.gif" ).getImage() ); bScallToFitOnePage = false; // reset to default PrinterJob prnJob = PrinterJob.getPrinterJob(); pp_pf = prnJob.defaultPage(); if (pp_pf.getHeight()==0 || pp_pf.getWidth()==0) { System.err.println("Unable to determine default page size"); return; } setSize(670, 750); m_target = target; displayArea = null; m_preview = null; JToolBar tb = new JToolBar(); createButtons(tb, shrink); String[] scales = { "10 %", "25 %", "50 %", "100 %" }; m_cbScale = new JComboBox(scales); m_cbScale.setSelectedIndex(3); ActionListener lst = new ActionListener() { public void actionPerformed(ActionEvent e) { Thread runner = new Thread(PrintPreview.this); runner.start(); } }; m_cbScale.addActionListener(lst); m_cbScale.setMaximumSize(m_cbScale.getPreferredSize()); m_cbScale.setEditable(true); tb.addSeparator(); tb.add(m_cbScale); getContentPane().add(tb, BorderLayout.NORTH); // previewThePages(PageFormat.PORTRAIT); previewThePages(pp_pf.getOrientation()); setDefaultCloseOperation(DISPOSE_ON_CLOSE); setResizable(false); setModal(true); setVisible(true); } public void run() { int scale = getDisplayScale(); width = (int)(m_wPage*scale/100); height = (int)(m_hPage*scale/100); Component[] comps = m_preview.getComponents(); for (int k=0; k<comps.length; k++) { if (!(comps[k] instanceof PagePreview)) continue; PagePreview pp = (PagePreview)comps[k]; pp.setScaledSize(width, height); } m_preview.doLayout(); m_preview.getParent().getParent().validate(); } class PreviewContainer extends JPanel { protected int H_GAP = 16; protected int V_GAP = 10; public Dimension getPreferredSize() { int n = getComponentCount(); if (n == 0) return new Dimension(H_GAP, V_GAP); Component comp = getComponent(0); Dimension dc = comp.getPreferredSize(); int w = dc.width; int h = dc.height; Dimension dp = getParent().getSize(); int nCol = Math.max((dp.width-H_GAP)/(w+H_GAP), 1); int nRow = n/nCol; if (nRow*nCol < n) nRow++; int ww = nCol*(w+H_GAP) + H_GAP; int hh = nRow*(h+V_GAP) + V_GAP; Insets ins = getInsets(); return new Dimension(ww+ins.left+ins.right, hh+ins.top+ins.bottom); } public Dimension getMaximumSize() { return getPreferredSize(); } public Dimension getMinimumSize() { return getPreferredSize(); } public void doLayout() { Insets ins = getInsets(); int x = ins.left + H_GAP; int y = ins.top + V_GAP; int n = getComponentCount(); if (n == 0) return; Component comp = getComponent(0); Dimension dc = comp.getPreferredSize(); int w = dc.width; int h = dc.height; Dimension dp = getParent().getSize(); int nCol = Math.max((dp.width-H_GAP)/(w+H_GAP), 1); int nRow = n/nCol; if (nRow*nCol < n) nRow++; int index = 0; for (int k = 0; k<nRow; k++) { for (int m = 0; m<nCol; m++) { if (index >= n) return; comp = getComponent(index++); comp.setBounds(x, y, w, h); x += w+H_GAP; } y += h+V_GAP; x = ins.left + H_GAP; } } } class PagePreview extends JPanel { protected int m_w; protected int m_h; protected Image m_source; protected Image m_img; public PagePreview(int w, int h, Image source) { m_w = w; m_h = h; m_source= source; m_img = m_source.getScaledInstance(m_w, m_h, Image.SCALE_SMOOTH); m_img.flush(); setBackground(Color.white); setBorder(new MatteBorder(1, 1, 2, 2, Color.black)); } public void setScaledSize(int w, int h) { m_w = w; m_h = h; m_img = m_source.getScaledInstance(m_w, m_h, Image.SCALE_SMOOTH); repaint(); } public Dimension getPreferredSize() { Insets ins = getInsets(); return new Dimension(m_w+ins.left+ins.right, m_h+ins.top+ins.bottom); } public Dimension getMaximumSize() { return getPreferredSize(); } public Dimension getMinimumSize() { return getPreferredSize(); } public void paint(Graphics g) { g.setColor(getBackground()); g.fillRect(0, 0, getWidth(), getHeight()); g.drawImage(m_img, 0, 0, this); paintBorder(g); } } }
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