Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.browsing.ui.swt / src / org / simantics / browsing / ui / swt / contentassist / ContentAssistTextField.java

diff --git a/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/contentassist/ContentAssistTextField.java b/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/contentassist/ContentAssistTextField.java
new file mode 100644 (file)
index 0000000..4d2f215
--- /dev/null
+++ b/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/contentassist/ContentAssistTextField.java
@@ -0,0 +1,174 @@
+/*******************************************************************************\r
+ * Copyright (c) 2007, 2012 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.browsing.ui.swt.contentassist;\r
+\r
+import java.util.Arrays;\r
+import java.util.Collection;\r
+import java.util.Map;\r
+import java.util.TreeMap;\r
+\r
+import org.eclipse.jface.fieldassist.IContentProposal;\r
+import org.eclipse.jface.fieldassist.IContentProposalListener;\r
+import org.eclipse.jface.fieldassist.TextContentAdapter;\r
+import org.eclipse.jface.layout.GridDataFactory;\r
+import org.eclipse.jface.layout.GridLayoutFactory;\r
+import org.eclipse.swt.SWT;\r
+import org.eclipse.swt.events.FocusEvent;\r
+import org.eclipse.swt.events.FocusListener;\r
+import org.eclipse.swt.events.KeyAdapter;\r
+import org.eclipse.swt.events.KeyEvent;\r
+import org.eclipse.swt.events.ModifyEvent;\r
+import org.eclipse.swt.events.ModifyListener;\r
+import org.eclipse.swt.events.TraverseEvent;\r
+import org.eclipse.swt.events.TraverseListener;\r
+import org.eclipse.swt.widgets.Composite;\r
+import org.eclipse.swt.widgets.Text;\r
+\r
+\r
+/**\r
+ * @author Tuukka Lehtonen\r
+ *\r
+ * @param <T>\r
+ */\r
+public class ContentAssistTextField extends Composite {\r
+\r
+    private static final boolean DEBUG = false;\r
+    \r
+    Text text;\r
+    INamedObject acceptedProposal;\r
+    INamedObject result;\r
+    OpenableContentAssistCommandAdapter contentAssist;\r
+\r
+    public <T extends INamedObject> ContentAssistTextField(final Composite parent, T initialValue, final T[] allowedValues, int style) {\r
+        this(parent, initialValue, Arrays.asList(allowedValues), style);\r
+    }\r
+\r
+    public <T extends INamedObject> ContentAssistTextField(final Composite parent, T initialValue, final Collection<T> allowedValues, int style) {\r
+        super(parent, style);\r
+        this.result = initialValue;\r
+\r
+        GridLayoutFactory.fillDefaults().applyTo(this);\r
+\r
+        text = new Text(this, style);\r
+        text.setText(initialValue == null ? "" : initialValue.getName());\r
+        GridDataFactory.fillDefaults().grab(true, true).applyTo(text);\r
+\r
+        final Map<String, INamedObject> valueMap = new TreeMap<String, INamedObject>(String.CASE_INSENSITIVE_ORDER);\r
+        for (T t : allowedValues) {\r
+            valueMap.put(t.getName(), t);\r
+        }\r
+\r
+        contentAssist = new OpenableContentAssistCommandAdapter(text,\r
+                new TextContentAdapter(),\r
+                new NamedObjectContentProposalProvider<T>(allowedValues),\r
+                (String) null,\r
+                (char[]) null,\r
+                true\r
+        );\r
+        contentAssist.addContentProposalListener(new IContentProposalListener() {\r
+            @Override\r
+            public void proposalAccepted(IContentProposal proposal) {\r
+                if (DEBUG)\r
+                    System.out.println("accepted: " + proposal);\r
+                acceptedProposal = ((INamedObjectContentProposal) proposal).getNamedObject();\r
+                ContentAssistTextField.this.result = acceptedProposal;\r
+                text.setText(acceptedProposal.getName());\r
+                text.setSelection(acceptedProposal.getName().length());\r
+                //text.selectAll();\r
+            }\r
+        });\r
+\r
+        text.addModifyListener(new ModifyListener() {\r
+            @Override\r
+            public void modifyText(ModifyEvent e) {\r
+                String t = text.getText();\r
+                if (DEBUG) {\r
+                    System.out.println("text: " + t);\r
+                    System.out.println("value set: " + valueMap);\r
+                }\r
+                INamedObject obj = valueMap.get(t);\r
+                if (obj == null) {\r
+                    result = null;\r
+                    if (DEBUG)\r
+                        System.out.println("no result");\r
+                    contentAssist.open();\r
+                } else {\r
+                    result = obj;\r
+                    if (DEBUG)\r
+                        System.out.println("result: " + result);\r
+                }\r
+            }\r
+        });\r
+        text.addKeyListener(new KeyAdapter() {\r
+\r
+            @Override\r
+            public void keyPressed(KeyEvent e) {\r
+                if(e.keyCode == SWT.CR) {\r
+                    String name = text.getText();\r
+                    if (DEBUG)\r
+                        System.out.println("CR: " + name);\r
+                    if(name.isEmpty()) {\r
+                        return;\r
+                    }\r
+                    if(acceptedProposal == null)\r
+                        acceptedProposal = FindExactMatch.exec(name, allowedValues);\r
+                    if(acceptedProposal == null)\r
+                        contentAssist.open();\r
+                    else {\r
+                        ContentAssistTextField.this.result = acceptedProposal;\r
+                        //text.setText(acceptedProposal.getName());\r
+                        //text.traverse(SWT.TRAVERSE_TAB_NEXT);\r
+                        //text.traverse(SWT.TRAVERSE_RETURN);\r
+                    }\r
+                }\r
+            }\r
+\r
+        });\r
+        text.addFocusListener(new FocusListener() {\r
+\r
+            TraverseListener listener = new TraverseListener() {\r
+                @Override\r
+                public void keyTraversed(TraverseEvent e) {\r
+//                    System.out.println("CA TraverseListener PARENT TRAVERSE: " + e.detail);\r
+                    if (e.detail == SWT.TRAVERSE_RETURN) {\r
+                        e.doit = false;\r
+                    }\r
+                }\r
+            };\r
+\r
+            @Override\r
+            public void focusLost(FocusEvent e) {\r
+                parent.removeTraverseListener(listener);\r
+            }\r
+\r
+            @Override\r
+            public void focusGained(FocusEvent e) {\r
+                parent.addTraverseListener(listener);\r
+            }\r
+        });\r
+\r
+        contentAssist.setPropagateKeys(true);\r
+    }\r
+\r
+    public INamedObject getResult() {\r
+        return result;\r
+    }\r
+\r
+    public Text getControl() {\r
+        return text;\r
+    }\r
+\r
+    public void openAssist() {\r
+        contentAssist.open();\r
+    }\r
+\r
+}\r