X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.browsing.ui.swt%2Fsrc%2Forg%2Fsimantics%2Fbrowsing%2Fui%2Fswt%2Fwidgets%2FLabel.java;fp=bundles%2Forg.simantics.browsing.ui.swt%2Fsrc%2Forg%2Fsimantics%2Fbrowsing%2Fui%2Fswt%2Fwidgets%2FLabel.java;h=c9651a1fa2b564abf71fd1928fcfa7472c694174;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

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
index 000000000..c9651a1fa
--- /dev/null
+++ b/bundles/org.simantics.browsing.ui.swt/src/org/simantics/browsing/ui/swt/widgets/Label.java
@@ -0,0 +1,177 @@
+/*******************************************************************************
+ * Copyright (c) 2007, 2012 Association for Decentralized Information Management
+ * in Industry THTH ry.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *     VTT Technical Research Centre of Finland - initial API and implementation
+ *******************************************************************************/
+package org.simantics.browsing.ui.swt.widgets;
+
+import org.eclipse.swt.graphics.Color;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+import org.simantics.Simantics;
+import org.simantics.browsing.ui.swt.widgets.impl.ReadFactory;
+import org.simantics.browsing.ui.swt.widgets.impl.WidgetSupport;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.common.request.ParametrizedRead;
+import org.simantics.db.common.request.UniqueRead;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.management.ISessionContext;
+import org.simantics.db.procedure.Listener;
+import org.simantics.utils.ui.SWTUtils;
+
+public class Label extends WidgetImpl {
+
+	private ReadFactory<?, String> textFactory;
+	private ReadFactory<?, Color> colorFactory;
+	
+	final private org.eclipse.swt.widgets.Label label;
+	
+	public Label(Composite parent, WidgetSupport support, int style) {
+		super(support);
+		label = new org.eclipse.swt.widgets.Label(parent, style);
+		support.register(this);
+	}
+	
+	public void setTextFactory(ReadFactory<?, String> textFactory) {
+		this.textFactory = textFactory;
+	}
+	
+	public void setForegroundFactory(ReadFactory<?, Color> colorFactory) {
+		this.colorFactory = colorFactory;
+	}
+
+	public org.eclipse.swt.widgets.Label getWidget() {
+		return label;
+	}
+	
+	@Override
+	public Control getControl() {
+		return label;
+	}
+
+	@Override
+	public void setInput(ISessionContext context, Object input) {
+
+		if(textFactory != null) {
+			textFactory.listen(context, input, new Listener<String>() {
+
+				public void exception(final Throwable t) {
+					SWTUtils.asyncExec(label, new Runnable() {
+
+						@Override
+						public void run() {
+							if(isDisposed()) return;
+//							System.out.println("Button received new text: " + text);
+							label.setText(t.toString());
+						}
+
+					});
+				}
+
+				@Override
+				public void execute(final String text) {
+					SWTUtils.asyncExec(label, new Runnable() {
+
+						@Override
+						public void run() {
+							if(isDisposed()) return;
+							label.setText(text);
+							// TODO: how can we resize without this knife??
+							label.getParent().layout();
+							label.getParent().getParent().layout();
+						}
+
+					});
+				}
+
+				@Override
+				public boolean isDisposed() {
+					return label.isDisposed();
+				}
+
+			});
+		}
+		
+		if(colorFactory != null) {
+			colorFactory.listen(context, input, new Listener<Color>() {
+
+				@Override
+				public void exception(Throwable t) {
+					t.printStackTrace();
+				}
+
+				@Override
+				public void execute(final Color color) {
+					label.getDisplay().asyncExec(new Runnable() {
+
+						@Override
+						public void run() {
+							if(isDisposed()) return;
+							label.setForeground(color);
+						}
+
+					});
+				}
+
+				@Override
+				public boolean isDisposed() {
+					return label.isDisposed();
+				}
+
+			});
+		}
+		
+	}
+	
+    public <T> void setText(final ParametrizedRead<T, String> read) {
+    	
+    	Simantics.getSession().async(new UniqueRead<String>() {
+
+    		@Override
+    		public String perform(ReadGraph graph) throws DatabaseException {
+    			T input = support.getInput(graph);
+    			return graph.syncRequest(read.get(input));
+    		}
+
+    	}, new Listener<String>() {
+
+    		@Override
+    		public void exception(Throwable t) {
+    			t.printStackTrace();
+    		}
+
+    		@Override
+    		public void execute(final String text) {
+
+    			if(isDisposed()) return;
+
+    			label.getDisplay().asyncExec(new Runnable() {
+
+    				@Override
+    				public void run() {
+    					label.setText(text);
+    				}
+
+    			});
+    		}
+
+    		@Override
+    		public boolean isDisposed() {
+    			return label.isDisposed();
+    		}
+
+    	});
+
+    }
+	
+	public void setText(String text) {
+		label.setText(text);
+	}
+
+}