Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.document.ui / src / org / simantics / document / ui / dialogs / TextInputDialog.java

diff --git a/bundles/org.simantics.document.ui/src/org/simantics/document/ui/dialogs/TextInputDialog.java b/bundles/org.simantics.document.ui/src/org/simantics/document/ui/dialogs/TextInputDialog.java
new file mode 100644 (file)
index 0000000..7e37a11
--- /dev/null
+++ b/bundles/org.simantics.document.ui/src/org/simantics/document/ui/dialogs/TextInputDialog.java
@@ -0,0 +1,86 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2010 Association for Decentralized Information Management\r
+ * in Industry THTH ry.\r
+ * All rights reserved. This program and the accompanying materials\r
+ * are made available under the terms of the Eclipse Public License v1.0\r
+ * which accompanies this distribution, and is available at\r
+ * http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ * Contributors:\r
+ *     VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.document.ui.dialogs;\r
+\r
+import java.util.HashMap;\r
+import java.util.Map;\r
+\r
+import org.eclipse.jface.dialogs.Dialog;\r
+import org.eclipse.jface.dialogs.IDialogConstants;\r
+import org.eclipse.jface.dialogs.IInputValidator;\r
+import org.eclipse.swt.SWT;\r
+import org.eclipse.swt.widgets.Control;\r
+import org.eclipse.swt.widgets.Display;\r
+import org.eclipse.swt.widgets.Shell;\r
+import org.eclipse.swt.widgets.Text;\r
+\r
+/**\r
+ * Base class for validated text input dialogs.\r
+ * \r
+ * @author Marko Luukkainen <marko.luukkainen@vtt.fi>\r
+ *\r
+ */\r
+public abstract class TextInputDialog extends Dialog{\r
+\r
+       // cache for all used validators\r
+       private Map<IInputValidator, String> validators = new HashMap<IInputValidator, String>();\r
+       \r
+       protected TextInputDialog(Shell parentShell) {\r
+               super(parentShell);\r
+       }\r
+       \r
+       protected boolean validate(Text text, IInputValidator validator) {\r
+               String err = null;\r
+               if (validator != null)\r
+                       err = validator.isValid(text.getText());\r
+               // add validator to the cache\r
+               validators.put(validator, err);\r
+               Control button = getButton(IDialogConstants.OK_ID);\r
+               \r
+               // disable ok button if any of the validators are reporting errors. \r
+               if (button != null) {\r
+                       boolean valid = true;\r
+                       for (String s : validators.values())\r
+                               if (s != null)\r
+                                       valid = false;\r
+                       button.setEnabled(valid);\r
+               }\r
+               if (err != null) {\r
+                       text.setForeground(Display.getCurrent().getSystemColor(SWT.COLOR_RED));\r
+                       text.setToolTipText(err);\r
+                       \r
+                       return false;\r
+               } else {\r
+                       text.setForeground(Display.getCurrent().getSystemColor(SWT.COLOR_WIDGET_FOREGROUND));\r
+                       text.setToolTipText(null);\r
+                       return true;\r
+               }\r
+               \r
+       }\r
+       \r
+       protected String updateName(String url, String name) {\r
+               \r
+               if (url.length() > 0 ) {\r
+                       if (name == null) {\r
+                               return new String(url);\r
+                       } else if (Math.abs(url.length() - name.length()) <=  1) {\r
+                               int common = Math.min(name.length(), url.length());\r
+                               if (name.regionMatches(0, url, 0, common)) {\r
+                                       return new String(url);\r
+                               }\r
+                       }\r
+               }\r
+               return null;\r
+               \r
+       }\r
+\r
+}\r