Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.browsing.ui.model / src / org / simantics / browsing / ui / model / labeldecorators / ConstantLabelDecorationRule.java

diff --git a/bundles/org.simantics.browsing.ui.model/src/org/simantics/browsing/ui/model/labeldecorators/ConstantLabelDecorationRule.java b/bundles/org.simantics.browsing.ui.model/src/org/simantics/browsing/ui/model/labeldecorators/ConstantLabelDecorationRule.java
new file mode 100644 (file)
index 0000000..d9a932d
--- /dev/null
+++ b/bundles/org.simantics.browsing.ui.model/src/org/simantics/browsing/ui/model/labeldecorators/ConstantLabelDecorationRule.java
@@ -0,0 +1,139 @@
+/*******************************************************************************\r
+ * Copyright (c) 2010, 2011 Association for Decentralized Information Management in\r
+ * 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.model.labeldecorators;\r
+\r
+import org.eclipse.jface.resource.ColorDescriptor;\r
+import org.eclipse.jface.resource.FontDescriptor;\r
+import org.eclipse.swt.SWT;\r
+import org.eclipse.swt.graphics.RGB;\r
+import org.simantics.browsing.ui.content.LabelDecorator;\r
+import org.simantics.databoard.Bindings;\r
+import org.simantics.db.ReadGraph;\r
+import org.simantics.db.Resource;\r
+import org.simantics.db.exception.DatabaseException;\r
+import org.simantics.viewpoint.ontology.ViewpointResource;\r
+\r
+/**\r
+ * Constant label decoration rule decorates the label in a fixed way.\r
+ * @author Hannu Niemistö\r
+ */\r
+public class ConstantLabelDecorationRule extends AbstractLabelDecorator implements LabelDecorationRule {\r
+\r
+    String prefix;\r
+    String postfix;\r
+    ColorDescriptor foregroundColor;\r
+    ColorDescriptor backgroundColor;\r
+    int style;\r
+    \r
+    public ConstantLabelDecorationRule(String format,\r
+            ColorDescriptor foregroundColor, ColorDescriptor backgroundColor,\r
+            String style) {\r
+        if(format != null) {\r
+            String[] split = format.split("%s", 2);\r
+            if(split.length == 1) {\r
+                prefix = "";\r
+                postfix = split[0];\r
+            }\r
+            else {\r
+                prefix = split[0];\r
+                postfix = split[1];\r
+            }\r
+        }\r
+        this.foregroundColor = foregroundColor;\r
+        this.backgroundColor = backgroundColor;\r
+        this.style = SWT.NORMAL;\r
+        if(style != null)\r
+            for(char c : style.toCharArray())\r
+                switch(c) {\r
+                case 'B':\r
+                case 'b':\r
+                    this.style |= SWT.BOLD;\r
+                    break;\r
+                case 'I':\r
+                case 'i':\r
+                    this.style |= SWT.ITALIC;\r
+                    break;\r
+                default:\r
+                    System.err.println("Invalid character '" + c + "' in style string. Only B and I recognized.");\r
+                }\r
+    }\r
+\r
+    private static ColorDescriptor getPossibleRelatedColor(ReadGraph g, Resource subject, Resource predicate) throws DatabaseException {\r
+        Resource value = g.getPossibleObject(subject, predicate);\r
+        if(value == null)\r
+            return null;\r
+        RGB rgb = g.adapt(value, RGB.class);\r
+        return ColorDescriptor.createFrom(rgb);\r
+    }\r
+    \r
+    public static ConstantLabelDecorationRule create(ReadGraph g, Resource r) throws DatabaseException {\r
+        ViewpointResource vr = ViewpointResource.getInstance(g);        \r
+        String format = g.getPossibleRelatedValue(r, vr.ConstantLabelDecorationRule_HasFormat, Bindings.STRING);\r
+\r
+        ColorDescriptor foregroundColor = getPossibleRelatedColor(g, r, vr.ConstantLabelDecorationRule_HasForegroundColor);\r
+        ColorDescriptor backgroundColor = getPossibleRelatedColor(g, r, vr.ConstantLabelDecorationRule_HasBackgroundColor);\r
+        \r
+        String style = g.getPossibleRelatedValue(r, vr.ConstantLabelDecorationRule_HasStyle, Bindings.STRING);\r
+        \r
+        return new ConstantLabelDecorationRule(\r
+                format, \r
+                foregroundColor, \r
+                backgroundColor,\r
+                style\r
+        );\r
+    }\r
+    \r
+    @Override\r
+    public boolean isCompatible(Class<?> contentType) {\r
+        return true;\r
+    }\r
+\r
+    @Override\r
+    public LabelDecorator getLabelDecorator(ReadGraph graph, Object content)\r
+            throws DatabaseException {\r
+        return this;\r
+    }\r
+    \r
+    @Override\r
+    public String decorateLabel(String label, String column, int itemIndex) {\r
+        if(postfix == null)\r
+            return label;\r
+        else\r
+            return prefix + label + postfix;\r
+    }\r
+    \r
+    @SuppressWarnings("unchecked")\r
+    public <Color> Color decorateForeground(Color color, String column, int itemIndex) {\r
+        if(foregroundColor == null)\r
+            return color;\r
+        else\r
+            return (Color)foregroundColor;\r
+    }\r
+\r
+    @SuppressWarnings("unchecked")\r
+    public <Color> Color decorateBackground(Color color, String column, int itemIndex) {\r
+        if(backgroundColor == null)\r
+            return color;\r
+        else\r
+            return (Color)backgroundColor;\r
+    }\r
+    \r
+    @SuppressWarnings("unchecked")\r
+    public <Font> Font decorateFont(Font font, String column, int itemIndex) {\r
+        if(style == 0)\r
+            return font;\r
+        else {\r
+            FontDescriptor desc = (FontDescriptor)font;\r
+            return (Font)desc.withStyle(style);\r
+        }\r
+    }\r
+}\r