bundles/org.simantics.modeling/src/org/simantics/modeling/CreateVersionDialog.java

   1 package org.simantics.modeling;\r
   2 \r
   3 import org.eclipse.jface.dialogs.Dialog;\r
   4 import org.eclipse.jface.dialogs.IDialogConstants;\r
   5 import org.eclipse.jface.layout.GridDataFactory;\r
   6 import org.eclipse.jface.layout.GridLayoutFactory;\r
   7 import org.eclipse.swt.SWT;\r
   8 import org.eclipse.swt.events.ModifyEvent;\r
   9 import org.eclipse.swt.events.ModifyListener;\r
  10 import org.eclipse.swt.graphics.Point;\r
  11 import org.eclipse.swt.widgets.Composite;\r
  12 import org.eclipse.swt.widgets.Control;\r
  13 import org.eclipse.swt.widgets.Label;\r
  14 import org.eclipse.swt.widgets.Shell;\r
  15 import org.eclipse.swt.widgets.Text;\r
  16 import org.simantics.db.common.utils.VersionInfo;\r
  17 import org.simantics.utils.strings.AlphanumComparator;\r
  18 \r
  19 public class CreateVersionDialog extends Dialog {\r
  20 \r
  21         private final VersionInfo info;\r
  22 \r
  23         private Label errors;\r
  24         private Text versionTxT;\r
  25         private String result;\r
  26         \r
  27         public CreateVersionDialog(Shell parentShell, VersionInfo info) {\r
  28                 super(parentShell);\r
  29                 this.info = info;\r
  30         }\r
  31         \r
  32         public String mutate(String ver) {\r
  33         try {\r
  34             int currentInt = Integer.parseInt(ver);\r
  35             return "" + (currentInt+1);\r
  36         } catch (NumberFormatException e) {\r
  37                 if(ver.length() == 1) {\r
  38                         char c = ver.charAt(0);\r
  39                         c++;\r
  40                         Character ch = c; \r
  41                         if(Character.isLetter(ch) && Character.isUpperCase(ch)) return ch.toString();\r
  42                 }\r
  43         }\r
  44         return ver + "_1";\r
  45         }\r
  46         \r
  47         public String getSuggestion() {\r
  48                 \r
  49                 String ver = info.version;\r
  50                 while(validateVersion(ver) != null) ver = mutate(ver);\r
  51                 return ver;\r
  52                 \r
  53         }\r
  54 \r
  55         @Override\r
  56         protected Control createDialogArea(Composite parent) {\r
  57                 Composite c = (Composite) super.createDialogArea(parent);\r
  58                 \r
  59         GridLayoutFactory.fillDefaults().margins(8, 8).numColumns(2).applyTo(c);\r
  60         GridDataFactory gd1 = GridDataFactory.fillDefaults().span(2, 1);\r
  61 \r
  62         // 1st line\r
  63         Label label = new Label(c, 0);\r
  64         label.setText("Current version identifier is: " + info.version);\r
  65         gd1.applyTo(label);\r
  66         \r
  67         // 2nd line\r
  68         label = new Label(c, 0);\r
  69         label.setText("New identifier:");\r
  70         GridDataFactory.fillDefaults().applyTo(label);\r
  71 \r
  72         versionTxT = new Text(c, SWT.BORDER);\r
  73         versionTxT.setText(getSuggestion());\r
  74         \r
  75         GridDataFactory.fillDefaults().grab(true, false).applyTo(versionTxT);\r
  76         \r
  77         versionTxT.addModifyListener(new ModifyListener() {\r
  78 \r
  79                         @Override\r
  80                         public void modifyText(ModifyEvent e) {\r
  81 \r
  82                                 String result = validateVersion(versionTxT.getText()); \r
  83                                 if(result != null) {\r
  84                                         errors.setText(result);\r
  85                                         getButton(IDialogConstants.OK_ID).setEnabled(false);\r
  86                                         Shell shell = errors.getShell();\r
  87                                         Point ns = shell.computeSize(SWT.DEFAULT, SWT.DEFAULT);\r
  88                                         Point cs = shell.getSize();\r
  89                                         shell.setSize(Math.max(cs.x, ns.x), Math.max(cs.y, ns.y));\r
  90                                 } else {\r
  91                                         errors.setText("");\r
  92                                         getButton(IDialogConstants.OK_ID).setEnabled(true);\r
  93                                 }\r
  94                                 \r
  95                         }\r
  96                 \r
  97         });\r
  98         \r
  99         // Errors\r
 100         errors= new Label(c, 0);\r
 101         errors.setText("");\r
 102         errors.setForeground(errors.getDisplay().getSystemColor(SWT.COLOR_RED));\r
 103         \r
 104         gd1.applyTo(errors);\r
 105         \r
 106                 return c;\r
 107         }\r
 108         \r
 109         private String validateVersion(final String version) {\r
 110                 \r
 111                 if(info.containsVersion(version)) return "Version already in use";\r
 112                 if(AlphanumComparator.COMPARATOR.compare(version, info.version) < 0) return "New version must be lexically greater than current";\r
 113                 return null;\r
 114                 \r
 115         }\r
 116         \r
 117         @Override\r
 118         protected void okPressed() {\r
 119                 result = versionTxT.getText();\r
 120         super.okPressed();\r
 121         }\r
 122         \r
 123         public String getResult() {\r
 124                 return result;\r
 125         }\r
 126 \r
 127         @Override\r
 128     protected int getShellStyle() {\r
 129         return SWT.RESIZE | SWT.TITLE | SWT.CLOSE | SWT.BORDER;\r
 130     }\r
 131 \r
 132     @Override\r
 133     protected void configureShell(Shell newShell) {\r
 134         super.configureShell(newShell);\r
 135         newShell.setText("Create new version of " + info.baseName);\r
 136     }\r
 137 }\r