dialogs/FeedbackDialog.java

   1 package org.argeo.eclipse.ui.dialogs;
   2
   3 import java.io.PrintWriter;
   4 import java.io.StringWriter;
   5
   6 import org.argeo.api.cms.CmsLog;
   7 import org.argeo.eclipse.ui.EclipseUiException;
   8 import org.eclipse.swt.SWT;
   9 import org.eclipse.swt.events.ShellAdapter;
  10 import org.eclipse.swt.events.ShellEvent;
  11 import org.eclipse.swt.graphics.Point;
  12 import org.eclipse.swt.graphics.Rectangle;
  13 import org.eclipse.swt.layout.GridData;
  14 import org.eclipse.swt.layout.GridLayout;
  15 import org.eclipse.swt.widgets.Composite;
  16 import org.eclipse.swt.widgets.Control;
  17 import org.eclipse.swt.widgets.Display;
  18 import org.eclipse.swt.widgets.Label;
  19 import org.eclipse.swt.widgets.Shell;
  20 import org.eclipse.swt.widgets.Text;
  21
  22 /**
  23  * Generic lightweight dialog, not based on JFace.
  24  *
  25  * @deprecated Use CMS dialogs instead.
  26  */
  27 @Deprecated
  28 public class FeedbackDialog extends LightweightDialog {
  29         private final static CmsLog log = CmsLog.getLog(FeedbackDialog.class);
  30
  31         private String message;
  32         private Throwable exception;
  33
  34 //      private Shell parentShell;
  35         private Shell shell;
  36
  37         public static void show(String message, Throwable e) {
  38                 // rethrow ThreaDeath in order to make sure that RAP will properly clean
  39                 // up the UI thread
  40                 if (e instanceof ThreadDeath)
  41                         throw (ThreadDeath) e;
  42
  43                 new FeedbackDialog(getDisplay().getActiveShell(), message, e).open();
  44         }
  45
  46         public static void show(String message) {
  47                 new FeedbackDialog(getDisplay().getActiveShell(), message, null).open();
  48         }
  49
  50         /** Tries to find a display */
  51         private static Display getDisplay() {
  52                 try {
  53                         Display display = Display.getCurrent();
  54                         if (display != null)
  55                                 return display;
  56                         else
  57                                 return Display.getDefault();
  58                 } catch (Exception e) {
  59                         return Display.getCurrent();
  60                 }
  61         }
  62
  63         public FeedbackDialog(Shell parentShell, String message, Throwable e) {
  64                 super(parentShell);
  65                 this.message = message;
  66                 this.exception = e;
  67                 log.error(message, e);
  68         }
  69
  70         public int open() {
  71                 if (shell != null)
  72                         throw new EclipseUiException("There is already a shell");
  73                 shell = new Shell(getDisplay(), SWT.NO_TRIM | SWT.BORDER | SWT.ON_TOP);
  74                 shell.setLayout(new GridLayout());
  75                 // shell.setText("Error");
  76                 shell.setSize(getInitialSize());
  77                 createDialogArea(shell);
  78                 // shell.pack();
  79                 // shell.layout();
  80
  81                 Rectangle shellBounds = Display.getCurrent().getBounds();// RAP
  82                 Point dialogSize = shell.getSize();
  83                 int x = shellBounds.x + (shellBounds.width - dialogSize.x) / 2;
  84                 int y = shellBounds.y + (shellBounds.height - dialogSize.y) / 2;
  85                 shell.setLocation(x, y);
  86
  87                 shell.addShellListener(new ShellAdapter() {
  88                         private static final long serialVersionUID = -2701270481953688763L;
  89
  90                         @Override
  91                         public void shellDeactivated(ShellEvent e) {
  92                                 closeShell();
  93                         }
  94                 });
  95
  96                 shell.open();
  97                 return OK;
  98         }
  99
 100         protected void closeShell() {
 101                 shell.close();
 102                 shell.dispose();
 103                 shell = null;
 104         }
 105
 106         protected Point getInitialSize() {
 107                 // if (exception != null)
 108                 // return new Point(800, 600);
 109                 // else
 110                 return new Point(400, 300);
 111         }
 112
 113         protected Control createDialogArea(Composite parent) {
 114                 Composite dialogarea = new Composite(parent, SWT.NONE);
 115                 dialogarea.setLayout(new GridLayout());
 116                 // Composite dialogarea = (Composite) super.createDialogArea(parent);
 117                 dialogarea.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
 118
 119                 Label messageLbl = new Label(dialogarea, SWT.NONE);
 120                 if (message != null)
 121                         messageLbl.setText(message);
 122                 else if (exception != null)
 123                         messageLbl.setText(exception.getLocalizedMessage());
 124
 125                 Composite composite = new Composite(dialogarea, SWT.NONE);
 126                 composite.setLayout(new GridLayout(2, false));
 127                 composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
 128
 129                 if (exception != null) {
 130                         Text stack = new Text(composite, SWT.MULTI | SWT.LEAD | SWT.BORDER | SWT.V_SCROLL | SWT.H_SCROLL);
 131                         stack.setEditable(false);
 132                         stack.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
 133                         StringWriter sw = new StringWriter();
 134                         exception.printStackTrace(new PrintWriter(sw));
 135                         stack.setText(sw.toString());
 136                 }
 137
 138                 // parent.pack();
 139                 return composite;
 140         }
 141 }