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+/*
+ * Copyright (c) 2009-2010 jMonkeyEngine
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of 'jMonkeyEngine' nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package com.jme3.app;
+
+import com.jme3.asset.AssetManager;
+import com.jme3.font.BitmapFont;
+import com.jme3.font.BitmapText;
+import com.jme3.renderer.RenderManager;
+import com.jme3.renderer.Statistics;
+import com.jme3.renderer.ViewPort;
+import com.jme3.renderer.queue.RenderQueue.Bucket;
+import com.jme3.scene.Node;
+import com.jme3.scene.Spatial;
+import com.jme3.scene.control.Control;
+
+/**
+ * The <code>StatsView</code> provides a heads-up display (HUD) of various
+ * statistics of rendering. The data is retrieved every frame from a
+ * {@link com.jme3.renderer.Statistics} and then displayed on screen.<br/>
+ * <br/>
+ * Usage:<br/>
+ * To use the stats view, you need to retrieve the
+ * {@link com.jme3.renderer.Statistics} from the
+ * {@link com.jme3.renderer.Renderer} used by the application. Then, attach
+ * the <code>StatsView</code> to the scene graph.<br/>
+ * <code><br/>
+ * Statistics stats = renderer.getStatistics();<br/>
+ * StatsView statsView = new StatsView("MyStats", assetManager, stats);<br/>
+ * rootNode.attachChild(statsView);<br/>
+ * </code>
+ */
+public class StatsView extends Node implements Control {
+
+ private BitmapText[] labels;
+ private Statistics statistics;
+
+ private String[] statLabels;
+ private int[] statData;
+
+ private boolean enabled = true;
+
+ private final StringBuilder stringBuilder = new StringBuilder();
+
+ public StatsView(String name, AssetManager manager, Statistics stats){
+ super(name);
+
+ setQueueBucket(Bucket.Gui);
+ setCullHint(CullHint.Never);
+
+ statistics = stats;
+
+ statLabels = statistics.getLabels();
+ statData = new int[statLabels.length];
+ labels = new BitmapText[statLabels.length];
+
+ BitmapFont font = manager.loadFont("Interface/Fonts/Console.fnt");
+ for (int i = 0; i < labels.length; i++){
+ labels[i] = new BitmapText(font);
+ labels[i].setLocalTranslation(0, labels[i].getLineHeight() * (i+1), 0);
+ attachChild(labels[i]);
+ }
+
+ addControl(this);
+ }
+
+ public void update(float tpf) {
+
+ if (!isEnabled())
+ return;
+
+ statistics.getData(statData);
+ for (int i = 0; i < labels.length; i++) {
+ stringBuilder.setLength(0);
+ stringBuilder.append(statLabels[i]).append(" = ").append(statData[i]);
+ labels[i].setText(stringBuilder);
+ }
+
+ // Moved to SimpleApplication to make sure it is
+ // done even if there is no StatsView or the StatsView
+ // is disable.
+ //statistics.clearFrame();
+ }
+
+ public Control cloneForSpatial(Spatial spatial) {
+ return (Control) spatial;
+ }
+
+ public void setSpatial(Spatial spatial) {
+ }
+
+ public void setEnabled(boolean enabled) {
+ this.enabled = enabled;
+ }
+
+ public boolean isEnabled() {
+ return enabled;
+ }
+
+ public void render(RenderManager rm, ViewPort vp) {
+ }
+
+}