1 files changed, 121 insertions, 0 deletions
diff --git a/samples/ApiDemos/src/com/example/android/apis/graphics/UnicodeChart.java b/samples/ApiDemos/src/com/example/android/apis/graphics/UnicodeChart.java
new file mode 100644
index 000000000..7ee99d00c
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+++ b/samples/ApiDemos/src/com/example/android/apis/graphics/UnicodeChart.java
@@ -0,0 +1,121 @@
+/*
+ * Copyright (C) 2008 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.example.android.apis.graphics;
+
+import android.app.Activity;
+import android.content.Context;
+import android.graphics.*;
+import android.os.Bundle;
+import android.view.KeyEvent;
+import android.view.View;
+import android.view.Window;
+
+public class UnicodeChart extends GraphicsActivity {
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        
+        requestWindowFeature(Window.FEATURE_NO_TITLE);
+        
+        setContentView(new SampleView(this));
+    }
+    
+    private static class SampleView extends View {
+        private Paint mBigCharPaint;
+        private Paint mLabelPaint;
+        private final char[] mChars = new char[256];
+        private final float[] mPos = new float[512];
+        
+        private int mBase;
+        
+        private static final int XMUL = 20;
+        private static final int YMUL = 28;
+        private static final int YBASE = 18;
+
+        public SampleView(Context context) {
+            super(context);
+            setFocusable(true);
+            setFocusableInTouchMode(true);
+            
+            mBigCharPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
+            mBigCharPaint.setTextSize(15);
+            mBigCharPaint.setTextAlign(Paint.Align.CENTER);
+            
+            mLabelPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
+            mLabelPaint.setTextSize(8);
+            mLabelPaint.setTextAlign(Paint.Align.CENTER);
+            
+            // the position array is the same for all charts
+            float[] pos = mPos;
+            int index = 0;
+            for (int col = 0; col < 16; col++) {
+                final float x = col * 20 + 10;
+                for (int row = 0; row < 16; row++) {
+                    pos[index++] = x;
+                    pos[index++] = row * YMUL + YBASE;
+                }
+            }
+        }
+        
+        private float computeX(int index) {
+            return (index >> 4) * 20 + 10;
+        }
+
+        private float computeY(int index) {
+            return (index & 0xF) * YMUL + YMUL;
+        }
+        
+        private void drawChart(Canvas canvas, int base) {
+            char[] chars = mChars;
+            for (int i = 0; i < 256; i++) {
+                int unichar = base + i;
+                chars[i] = (char)unichar;
+                
+                canvas.drawText(Integer.toHexString(unichar),
+                                computeX(i), computeY(i), mLabelPaint);
+            }
+            canvas.drawPosText(chars, 0, 256, mPos, mBigCharPaint);
+        }
+        
+        @Override protected void onDraw(Canvas canvas) {
+            canvas.drawColor(Color.WHITE);            
+
+            canvas.translate(0, 1);
+            drawChart(canvas, mBase * 256);
+        }
+
+        @Override public boolean onKeyDown(int keyCode, KeyEvent event) {
+            switch (keyCode) {
+                case KeyEvent.KEYCODE_DPAD_LEFT:
+                    if (mBase > 0) {
+                        mBase -= 1;
+                        invalidate();
+                    }
+                    return true;
+                case KeyEvent.KEYCODE_DPAD_RIGHT:
+                    mBase += 1;
+                    invalidate();
+                    return true;
+                default:
+                    break;
+            }
+            return super.onKeyDown(keyCode, event);
+        }
+    }
+}
+