Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.g2d / src / org / simantics / g2d / utils / FontHelper.java

diff --git a/bundles/org.simantics.g2d/src/org/simantics/g2d/utils/FontHelper.java b/bundles/org.simantics.g2d/src/org/simantics/g2d/utils/FontHelper.java
new file mode 100644 (file)
index 0000000..f5bfcfd
--- /dev/null
+++ b/bundles/org.simantics.g2d/src/org/simantics/g2d/utils/FontHelper.java
@@ -0,0 +1,47 @@
+/*******************************************************************************\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.g2d.utils;\r
+\r
+import java.awt.Font;\r
+import java.awt.Toolkit;\r
+\r
+import org.eclipse.jface.resource.FontRegistry;\r
+import org.eclipse.swt.graphics.FontData;\r
+import org.eclipse.ui.PlatformUI;\r
+\r
+public final class FontHelper {\r
+\r
+    /**\r
+     * @return\r
+     * @throws IllegalStateException if there's no eclipse workbench context\r
+     *         available\r
+     */\r
+    public static FontRegistry getCurrentThemeFontRegistry() {\r
+        return PlatformUI.getWorkbench().getThemeManager().getCurrentTheme().getFontRegistry();\r
+    }\r
+\r
+    public static java.awt.Font toAwt(FontRegistry registry, String themeFontId) {\r
+        FontData fd = registry.getFontData(themeFontId)[0];\r
+        return toAwt(fd);\r
+    }\r
+\r
+    public static java.awt.Font toAwt(FontData fd) {\r
+        int resolution = Toolkit.getDefaultToolkit().getScreenResolution();\r
+        int awtFontSize = (int) Math.round((double) fd.getHeight() * resolution / 72.0);\r
+        // The style constants for SWT and AWT map exactly, and since they are int constants, they should\r
+        // never change. So, the SWT style is passed through as the AWT style.\r
+        Font font = new java.awt.Font(fd.getName(), fd.getStyle(), awtFontSize);\r
+//        System.out.println("awt font: " + font);\r
+        return font;\r
+    }\r
+\r
+}\r