Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.browsing.ui.swt / src / org / simantics / browsing / ui / swt / widgets / Label.java

diff --git a/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/widgets/Label.java b/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/widgets/Label.java
new file mode 100644 (file)
index 0000000..c9651a1
--- /dev/null
+++ b/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/widgets/Label.java
@@ -0,0 +1,177 @@
+/*******************************************************************************\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.widgets;\r
+\r
+import org.eclipse.swt.graphics.Color;\r
+import org.eclipse.swt.widgets.Composite;\r
+import org.eclipse.swt.widgets.Control;\r
+import org.simantics.Simantics;\r
+import org.simantics.browsing.ui.swt.widgets.impl.ReadFactory;\r
+import org.simantics.browsing.ui.swt.widgets.impl.WidgetSupport;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.common.request.ParametrizedRead;\r
+import org.simantics.db.common.request.UniqueRead;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.db.management.ISessionContext;\r
+import org.simantics.db.procedure.Listener;\r
+import org.simantics.utils.ui.SWTUtils;\r
+\r
+public class Label extends WidgetImpl {\r
+\r
+       private ReadFactory<?, String> textFactory;\r
+       private ReadFactory<?, Color> colorFactory;\r
+       \r
+       final private org.eclipse.swt.widgets.Label label;\r
+       \r
+       public Label(Composite parent, WidgetSupport support, int style) {\r
+               super(support);\r
+               label = new org.eclipse.swt.widgets.Label(parent, style);\r
+               support.register(this);\r
+       }\r
+       \r
+       public void setTextFactory(ReadFactory<?, String> textFactory) {\r
+               this.textFactory = textFactory;\r
+       }\r
+       \r
+       public void setForegroundFactory(ReadFactory<?, Color> colorFactory) {\r
+               this.colorFactory = colorFactory;\r
+       }\r
+\r
+       public org.eclipse.swt.widgets.Label getWidget() {\r
+               return label;\r
+       }\r
+       \r
+       @Override\r
+       public Control getControl() {\r
+               return label;\r
+       }\r
+\r
+       @Override\r
+       public void setInput(ISessionContext context, Object input) {\r
+\r
+               if(textFactory != null) {\r
+                       textFactory.listen(context, input, new Listener<String>() {\r
+\r
+                               public void exception(final Throwable t) {\r
+                                       SWTUtils.asyncExec(label, new Runnable() {\r
+\r
+                                               @Override\r
+                                               public void run() {\r
+                                                       if(isDisposed()) return;\r
+//                                                     System.out.println("Button received new text: " + text);\r
+                                                       label.setText(t.toString());\r
+                                               }\r
+\r
+                                       });\r
+                               }\r
+\r
+                               @Override\r
+                               public void execute(final String text) {\r
+                                       SWTUtils.asyncExec(label, new Runnable() {\r
+\r
+                                               @Override\r
+                                               public void run() {\r
+                                                       if(isDisposed()) return;\r
+                                                       label.setText(text);\r
+                                                       // TODO: how can we resize without this knife??\r
+                                                       label.getParent().layout();\r
+                                                       label.getParent().getParent().layout();\r
+                                               }\r
+\r
+                                       });\r
+                               }\r
+\r
+                               @Override\r
+                               public boolean isDisposed() {\r
+                                       return label.isDisposed();\r
+                               }\r
+\r
+                       });\r
+               }\r
+               \r
+               if(colorFactory != null) {\r
+                       colorFactory.listen(context, input, new Listener<Color>() {\r
+\r
+                               @Override\r
+                               public void exception(Throwable t) {\r
+                                       t.printStackTrace();\r
+                               }\r
+\r
+                               @Override\r
+                               public void execute(final Color color) {\r
+                                       label.getDisplay().asyncExec(new Runnable() {\r
+\r
+                                               @Override\r
+                                               public void run() {\r
+                                                       if(isDisposed()) return;\r
+                                                       label.setForeground(color);\r
+                                               }\r
+\r
+                                       });\r
+                               }\r
+\r
+                               @Override\r
+                               public boolean isDisposed() {\r
+                                       return label.isDisposed();\r
+                               }\r
+\r
+                       });\r
+               }\r
+               \r
+       }\r
+       \r
+    public <T> void setText(final ParametrizedRead<T, String> read) {\r
+       \r
+       Simantics.getSession().async(new UniqueRead<String>() {\r
+\r
+               @Override\r
+               public String perform(ReadGraph graph) throws DatabaseException {\r
+                       T input = support.getInput(graph);\r
+                       return graph.syncRequest(read.get(input));\r
+               }\r
+\r
+       }, new Listener<String>() {\r
+\r
+               @Override\r
+               public void exception(Throwable t) {\r
+                       t.printStackTrace();\r
+               }\r
+\r
+               @Override\r
+               public void execute(final String text) {\r
+\r
+                       if(isDisposed()) return;\r
+\r
+                       label.getDisplay().asyncExec(new Runnable() {\r
+\r
+                               @Override\r
+                               public void run() {\r
+                                       label.setText(text);\r
+                               }\r
+\r
+                       });\r
+               }\r
+\r
+               @Override\r
+               public boolean isDisposed() {\r
+                       return label.isDisposed();\r
+               }\r
+\r
+       });\r
+\r
+    }\r
+       \r
+       public void setText(String text) {\r
+               label.setText(text);\r
+       }\r
+\r
+}\r