eclipse/runtime/org.argeo.eclipse.ui/src/main/java/org/argeo/eclipse/ui/dialogs/SingleValue.java

   1 package org.argeo.eclipse.ui.dialogs;
   2
   3 import org.eclipse.jface.dialogs.Dialog;
   4 import org.eclipse.jface.dialogs.IMessageProvider;
   5 import org.eclipse.jface.dialogs.TitleAreaDialog;
   6 import org.eclipse.swt.SWT;
   7 import org.eclipse.swt.graphics.Point;
   8 import org.eclipse.swt.layout.GridData;
   9 import org.eclipse.swt.layout.GridLayout;
  10 import org.eclipse.swt.widgets.Composite;
  11 import org.eclipse.swt.widgets.Control;
  12 import org.eclipse.swt.widgets.Display;
  13 import org.eclipse.swt.widgets.Label;
  14 import org.eclipse.swt.widgets.Shell;
  15 import org.eclipse.swt.widgets.Text;
  16
  17 /** Dialog retrieve a single value. */
  18 public class SingleValue extends TitleAreaDialog {
  19         private Text valueT;
  20         private String value;
  21         private final String title, message, label;
  22         private final Boolean multiline;
  23
  24         public static String ask(String label, String message) {
  25                 SingleValue svd = new SingleValue(label, message);
  26                 if (svd.open() == Dialog.OK)
  27                         return svd.getString();
  28                 else
  29                         return null;
  30         }
  31
  32         public static Long askLong(String label, String message) {
  33                 SingleValue svd = new SingleValue(label, message);
  34                 if (svd.open() == Dialog.OK)
  35                         return svd.getLong();
  36                 else
  37                         return null;
  38         }
  39
  40         public static Double askDouble(String label, String message) {
  41                 SingleValue svd = new SingleValue(label, message);
  42                 if (svd.open() == Dialog.OK)
  43                         return svd.getDouble();
  44                 else
  45                         return null;
  46         }
  47
  48         public SingleValue(String label, String message) {
  49                 this(Display.getDefault().getActiveShell(), label, message, label,
  50                                 false);
  51         }
  52
  53         public SingleValue(Shell parentShell, String title, String message,
  54                         String label, Boolean multiline) {
  55                 super(parentShell);
  56                 this.title = title;
  57                 this.message = message;
  58                 this.label = label;
  59                 this.multiline = multiline;
  60         }
  61
  62         protected Point getInitialSize() {
  63                 return new Point(300, 250);
  64         }
  65
  66         protected Control createDialogArea(Composite parent) {
  67                 Composite dialogarea = (Composite) super.createDialogArea(parent);
  68                 dialogarea.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
  69                 Composite composite = new Composite(dialogarea, SWT.NONE);
  70                 composite.setLayout(new GridLayout(2, false));
  71                 composite.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, false));
  72                 valueT = createLT(composite, label);
  73
  74                 setMessage(message, IMessageProvider.NONE);
  75                 parent.pack();
  76                 return composite;
  77         }
  78
  79         @Override
  80         protected void okPressed() {
  81                 value = valueT.getText();
  82                 super.okPressed();
  83         }
  84
  85         /** Creates label and text. */
  86         protected Text createLT(Composite parent, String label) {
  87                 new Label(parent, SWT.NONE).setText(label);
  88                 Text text = new Text(parent, SWT.SINGLE | SWT.LEAD | SWT.BORDER
  89                                 | (multiline ? SWT.MULTI : SWT.NONE));
  90                 text.setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
  91                 return text;
  92         }
  93
  94         protected void configureShell(Shell shell) {
  95                 super.configureShell(shell);
  96                 shell.setText(title);
  97         }
  98
  99         public String getString() {
 100                 return value;
 101         }
 102
 103         public Long getLong() {
 104                 return Long.valueOf(getString());
 105         }
 106
 107         public Double getDouble() {
 108                 return Double.valueOf(getString());
 109         }
 110 }