Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.g2d / src / org / simantics / g2d / participant / KeyUtil.java

diff --git a/bundles/org.simantics.g2d/src/org/simantics/g2d/participant/KeyUtil.java b/bundles/org.simantics.g2d/src/org/simantics/g2d/participant/KeyUtil.java
new file mode 100644 (file)
index 0000000..bbfd002
--- /dev/null
+++ b/bundles/org.simantics.g2d/src/org/simantics/g2d/participant/KeyUtil.java
@@ -0,0 +1,67 @@
+/*******************************************************************************\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
+/*\r
+ *\r
+ * @author Toni Kalajainen\r
+ */\r
+package org.simantics.g2d.participant;\r
+\r
+import java.util.HashSet;\r
+import java.util.Set;\r
+\r
+import org.simantics.g2d.canvas.impl.AbstractCanvasParticipant;\r
+import org.simantics.scenegraph.g2d.events.KeyEvent;\r
+import org.simantics.scenegraph.g2d.events.EventHandlerReflection.EventHandler;\r
+import org.simantics.scenegraph.g2d.events.KeyEvent.KeyPressedEvent;\r
+import org.simantics.scenegraph.g2d.events.KeyEvent.KeyReleasedEvent;\r
+\r
+\r
+/**\r
+ * KeyStatus monitors statuses of keys.\r
+ * @see java.awt.event.KeyEvent\r
+ */\r
+public class KeyUtil extends AbstractCanvasParticipant {       \r
+       \r
+       /** Key info */\r
+    private Set<Integer> pressedByKeyCode = new HashSet<Integer>();\r
+    private Set<Character> pressedByChar = new HashSet<Character>();\r
+       \r
+    @EventHandler(priority = Integer.MAX_VALUE)\r
+    public boolean handleClick(KeyEvent e) {\r
+        if (e instanceof KeyPressedEvent) {\r
+            pressedByKeyCode.add(e.keyCode);\r
+            pressedByChar.add(e.character);\r
+        } else\r
+        if (e instanceof KeyReleasedEvent) {\r
+            pressedByKeyCode.remove(e.keyCode);\r
+            pressedByChar.remove(e.character);\r
+        }\r
+        return false;\r
+    }\r
+    \r
+    public boolean isCharPressed(char c)\r
+    {\r
+        return pressedByChar.contains(c);\r
+    }\r
+    \r
+    /**\r
+     * See awt key event \r
+     * @see java.awt.event.KeyEvent\r
+     * @param keyCode\r
+     * @return\r
+     */\r
+    public boolean isKeyPressed(int keyCode)\r
+    {\r
+        return pressedByKeyCode.contains(keyCode);\r
+    }\r
+\r
+}\r