X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;ds=sidebyside;f=bundles%2Forg.simantics.g2d%2Fsrc%2Forg%2Fsimantics%2Fg2d%2Fparticipant%2FKeyUtil.java;fp=bundles%2Forg.simantics.g2d%2Fsrc%2Forg%2Fsimantics%2Fg2d%2Fparticipant%2FKeyUtil.java;h=bbfd0028d6dc2dbf9a5873b7ff1afbf9d6161956;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

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
index 000000000..bbfd0028d
--- /dev/null
+++ b/bundles/org.simantics.g2d/src/org/simantics/g2d/participant/KeyUtil.java
@@ -0,0 +1,67 @@
+/*******************************************************************************
+ * Copyright (c) 2007, 2010 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
+ *******************************************************************************/
+/*
+ *
+ * @author Toni Kalajainen
+ */
+package org.simantics.g2d.participant;
+
+import java.util.HashSet;
+import java.util.Set;
+
+import org.simantics.g2d.canvas.impl.AbstractCanvasParticipant;
+import org.simantics.scenegraph.g2d.events.KeyEvent;
+import org.simantics.scenegraph.g2d.events.EventHandlerReflection.EventHandler;
+import org.simantics.scenegraph.g2d.events.KeyEvent.KeyPressedEvent;
+import org.simantics.scenegraph.g2d.events.KeyEvent.KeyReleasedEvent;
+
+
+/**
+ * KeyStatus monitors statuses of keys.
+ * @see java.awt.event.KeyEvent
+ */
+public class KeyUtil extends AbstractCanvasParticipant {	
+	
+	/** Key info */
+    private Set<Integer> pressedByKeyCode = new HashSet<Integer>();
+    private Set<Character> pressedByChar = new HashSet<Character>();
+	
+    @EventHandler(priority = Integer.MAX_VALUE)
+    public boolean handleClick(KeyEvent e) {
+        if (e instanceof KeyPressedEvent) {
+            pressedByKeyCode.add(e.keyCode);
+            pressedByChar.add(e.character);
+        } else
+        if (e instanceof KeyReleasedEvent) {
+            pressedByKeyCode.remove(e.keyCode);
+            pressedByChar.remove(e.character);
+        }
+        return false;
+    }
+    
+    public boolean isCharPressed(char c)
+    {
+        return pressedByChar.contains(c);
+    }
+    
+    /**
+     * See awt key event 
+     * @see java.awt.event.KeyEvent
+     * @param keyCode
+     * @return
+     */
+    public boolean isKeyPressed(int keyCode)
+    {
+        return pressedByKeyCode.contains(keyCode);
+    }
+
+}