bundles/org.simantics.utils.ui/src/org/simantics/utils/ui/dialogs/ShowError.java

   1 package org.simantics.utils.ui.dialogs;\r
   2 \r
   3 import java.io.PrintWriter;\r
   4 import java.io.StringWriter;\r
   5 \r
   6 import org.eclipse.core.runtime.IStatus;\r
   7 import org.eclipse.jface.dialogs.IDialogConstants;\r
   8 import org.eclipse.jface.dialogs.IconAndMessageDialog;\r
   9 import org.eclipse.jface.layout.GridDataFactory;\r
  10 import org.eclipse.swt.SWT;\r
  11 import org.eclipse.swt.graphics.Image;\r
  12 import org.eclipse.swt.graphics.Point;\r
  13 import org.eclipse.swt.graphics.Rectangle;\r
  14 import org.eclipse.swt.layout.GridData;\r
  15 import org.eclipse.swt.layout.GridLayout;\r
  16 import org.eclipse.swt.widgets.Composite;\r
  17 import org.eclipse.swt.widgets.Control;\r
  18 import org.eclipse.swt.widgets.Display;\r
  19 import org.eclipse.swt.widgets.Label;\r
  20 import org.eclipse.swt.widgets.Shell;\r
  21 import org.eclipse.swt.widgets.Text;\r
  22 \r
  23 /**\r
  24  * This class shows an error, Throwable or IStatus. Can be instantiated from any thread.\r
  25  * \r
  26  * @author Marko Luukkainen <marko.luukkainen@vtt.fi>\r
  27  *\r
  28  */\r
  29 public class ShowError implements Runnable {\r
  30 \r
  31     private String title;\r
  32 \r
  33     private String message;\r
  34 \r
  35     private Throwable error;\r
  36 \r
  37     private Display display;\r
  38 \r
  39     private IStatus status;\r
  40 \r
  41     public ShowError(String title, String message, Throwable error) {\r
  42         this.title = title;\r
  43         this.message = message;\r
  44         this.error = error;\r
  45         this.display = getDisplay();\r
  46         display.asyncExec(this);\r
  47     }\r
  48 \r
  49     public ShowError(Display display, String title, String message, Throwable error) {\r
  50         this.title = title;\r
  51         this.message = message;\r
  52         this.error = error;\r
  53         this.display = display;\r
  54         display.asyncExec(this);\r
  55     }\r
  56 \r
  57     public ShowError(String title, String message, Throwable error, boolean sync) {\r
  58         this.title = title;\r
  59         this.message = message;\r
  60         this.error = error;\r
  61         this.display = getDisplay();\r
  62         if (sync)\r
  63             display.syncExec(this);\r
  64         else\r
  65             display.asyncExec(this);\r
  66     }\r
  67 \r
  68     public ShowError(Display display, String title, String message, Throwable error, boolean sync) {\r
  69         this.title = title;\r
  70         this.message = message;\r
  71         this.error = error;\r
  72         this.display = display;\r
  73         if (sync)\r
  74             display.syncExec(this);\r
  75         else\r
  76             display.asyncExec(this);\r
  77     }\r
  78 \r
  79     public ShowError(String title, String message,IStatus status) {\r
  80         this.title = title;\r
  81         this.message = message;\r
  82         this.status = status;\r
  83         this.display = getDisplay();\r
  84         display.asyncExec(this);\r
  85     }\r
  86 \r
  87     public ShowError(Display display,String title, String message, IStatus status) {\r
  88         this.title = title;\r
  89         this.message = message;\r
  90         this.status = status;\r
  91         this.display = display;\r
  92         display.asyncExec(this);\r
  93     }\r
  94 \r
  95     public ShowError(String title, String message,IStatus status, boolean sync) {\r
  96         this.title = title;\r
  97         this.message = message;\r
  98         this.status = status;\r
  99         this.display = getDisplay();\r
 100         if (sync)\r
 101             display.syncExec(this);\r
 102         else\r
 103             display.asyncExec(this);\r
 104     }\r
 105 \r
 106     public ShowError(Display display,String title, String message, IStatus status, boolean sync) {\r
 107         this.title = title;\r
 108         this.message = message;\r
 109         this.status = status;\r
 110         this.display = display;\r
 111         if (sync)\r
 112             display.syncExec(this);\r
 113         else\r
 114             display.asyncExec(this);\r
 115     }\r
 116 \r
 117     public Display getDisplay() {\r
 118         if (display!=null) return display;\r
 119         Display d = Display.getCurrent();\r
 120         if (d!=null) return d;\r
 121         return Display.getDefault();\r
 122     }\r
 123 \r
 124     public void run() {\r
 125         Shell shell = display.getActiveShell();\r
 126         if (error == null && status != null) {\r
 127             org.eclipse.jface.dialogs.ErrorDialog.openError(shell, title, message, status);\r
 128         } else {\r
 129             ErrorDialog dialog = new ErrorDialog(shell, title, message, error);\r
 130             dialog.open();\r
 131         }\r
 132     }\r
 133 \r
 134     public static void showError(String title, String message, Throwable error) {\r
 135         new ShowError(title, message, error);\r
 136     }\r
 137 \r
 138     public static void showError(String title, String message,IStatus status) {\r
 139         new ShowError(title, message, status);\r
 140     }\r
 141 \r
 142 \r
 143     private class ErrorDialog extends IconAndMessageDialog {\r
 144 \r
 145         private String title;\r
 146         //private String message;\r
 147         private Text messageText;\r
 148         private Text errorText;\r
 149         private String errorString;\r
 150 \r
 151         protected ErrorDialog(Shell parentShell, String title, String message, Throwable error) {\r
 152             super(parentShell);\r
 153             this.title = title;\r
 154             this.message = message;\r
 155             if (error != null) {\r
 156                 StringWriter sw = new StringWriter();\r
 157                 error.printStackTrace(new PrintWriter(sw));\r
 158                 this.errorString = sw.toString();\r
 159             }\r
 160             setShellStyle(getShellStyle() | SWT.RESIZE);\r
 161         }\r
 162 \r
 163         @Override\r
 164         protected Image getImage() {\r
 165             return getErrorImage();\r
 166         }\r
 167 \r
 168         @Override\r
 169         protected void configureShell(Shell newShell) {\r
 170             super.configureShell(newShell);\r
 171             newShell.setText(title);\r
 172             newShell.setImage(newShell.getDisplay().getSystemImage(SWT.ICON_ERROR));\r
 173         }\r
 174 \r
 175 //        @Override\r
 176 //        protected Control createDialogArea(Composite parent) {\r
 177 //            Composite composite = new Composite(parent, SWT.NONE);\r
 178 //            GridLayout layout = new GridLayout();\r
 179 //            layout.marginHeight = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_MARGIN);\r
 180 //            layout.marginWidth = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_MARGIN);\r
 181 //            layout.verticalSpacing = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_SPACING);\r
 182 //            layout.horizontalSpacing = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_SPACING);\r
 183 //            composite.setLayout(layout);\r
 184 //            composite.setLayoutData(new GridData(GridData.FILL_BOTH));\r
 185 //            applyDialogFont(composite);\r
 186 //\r
 187 //\r
 188 //            Text label = new Text(composite, SWT.MULTI);\r
 189 //            label.setEditable(false);\r
 190 //            if (message != null)\r
 191 //                label.setText(message);\r
 192 //            else\r
 193 //                label.setText("no message");\r
 194 //\r
 195 //            return composite;\r
 196 //        }\r
 197 \r
 198         protected Control createMessageArea(Composite composite) {\r
 199             // create image\r
 200             Image image = getImage();\r
 201             if (image != null) {\r
 202                 imageLabel = new Label(composite, SWT.NULL);\r
 203                 image.setBackground(imageLabel.getBackground());\r
 204                 imageLabel.setImage(image);\r
 205                 GridDataFactory.fillDefaults().align(SWT.CENTER, SWT.BEGINNING)\r
 206                         .applyTo(imageLabel);\r
 207             }\r
 208             // create message\r
 209             if (message != null) {\r
 210                 messageText = new Text(composite, SWT.MULTI | SWT.BORDER | SWT.FLAT | SWT.WRAP | SWT.H_SCROLL | SWT.V_SCROLL);\r
 211                 messageText.setEditable(false);\r
 212                 messageText.setText(message);\r
 213                 GridDataFactory\r
 214                         .fillDefaults()\r
 215                         .grab(true, true)\r
 216                         .hint(\r
 217                                 convertHorizontalDLUsToPixels(IDialogConstants.MINIMUM_MESSAGE_AREA_WIDTH),\r
 218                                 SWT.DEFAULT).applyTo(messageText);\r
 219             }\r
 220             return composite;\r
 221         }\r
 222 \r
 223         protected Control createDialogArea(Composite parent) {\r
 224             Composite composite = new Composite(parent, SWT.NONE);\r
 225 \r
 226             createMessageArea(composite);\r
 227 \r
 228             GridLayout layout = new GridLayout();\r
 229             layout.marginHeight = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_MARGIN);\r
 230             layout.marginWidth = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_MARGIN);\r
 231             layout.verticalSpacing = convertVerticalDLUsToPixels(IDialogConstants.VERTICAL_SPACING);\r
 232             layout.horizontalSpacing = convertHorizontalDLUsToPixels(IDialogConstants.HORIZONTAL_SPACING);\r
 233             layout.numColumns = 2;\r
 234             composite.setLayout(layout);\r
 235             GridData childData = new GridData(GridData.FILL_BOTH);\r
 236             childData.horizontalSpan = 2;\r
 237             childData.grabExcessVerticalSpace = true;\r
 238             composite.setLayoutData(childData);\r
 239             applyDialogFont(composite);\r
 240 \r
 241             return composite;\r
 242         }\r
 243 \r
 244         protected void createButtonsForButtonBar(Composite parent) {\r
 245             // create OK and Cancel buttons by default\r
 246             createButton(parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL,\r
 247                     true);\r
 248             if (errorString != null)\r
 249                 createButton(parent, IDialogConstants.DETAILS_ID,\r
 250                         IDialogConstants.SHOW_DETAILS_LABEL, false);\r
 251         }\r
 252 \r
 253         @Override\r
 254         protected void buttonPressed(int buttonId) {\r
 255             super.buttonPressed(buttonId);\r
 256             if (buttonId == IDialogConstants.DETAILS_ID) {\r
 257                 if (errorText == null) {\r
 258                     errorText = new Text((Composite)getDialogArea(), SWT.BORDER|SWT.H_SCROLL|SWT.V_SCROLL);\r
 259                     errorText.setText(errorString);\r
 260                     GridDataFactory.fillDefaults().span(2, 1).applyTo(errorText);\r
 261                 } else {\r
 262                     errorText.dispose();\r
 263                     errorText = null;\r
 264                 }\r
 265                 resize();\r
 266             }\r
 267         }\r
 268 \r
 269         protected void resize() {\r
 270             Point size = getInitialSize();\r
 271             Point location = getInitialLocation(size);\r
 272             getShell().setBounds(getConstrainedShellBounds(new Rectangle(location.x,\r
 273                     location.y, size.x, size.y)));\r
 274         }\r
 275 \r
 276     }\r
 277 \r
 278 }\r