auto import from //depot/cupcake/@135843

src/com/android/settings/Display.java

@@ -0,0 +1,138 @@
+/*
+ * Copyright (C) 2006 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.android.settings;
+
+import android.app.Activity;
+import android.app.ActivityManagerNative;
+import android.content.res.Configuration;
+import android.content.res.Resources;
+import android.content.res.TypedArray;
+import android.os.Bundle;
+import android.os.RemoteException;
+import android.util.DisplayMetrics;
+import android.util.TypedValue;
+import android.view.View;
+import android.widget.ArrayAdapter;
+import android.widget.Button;
+import android.widget.Spinner;
+import android.widget.TextView;
+
+
+public class Display extends Activity implements View.OnClickListener {
+    @Override
+    public void onCreate(Bundle icicle) {
+        super.onCreate(icicle);
+
+        setContentView(R.layout.display);
+
+        mFontSize = (Spinner) findViewById(R.id.fontSize);
+        mFontSize.setOnItemSelectedListener(mFontSizeChanged);
+        String[] states = new String[3];
+        Resources r = getResources();
+        states[0] = r.getString(R.string.small_font);
+        states[1] = r.getString(R.string.medium_font);
+        states[2] = r.getString(R.string.large_font);
+        ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,
+                android.R.layout.simple_spinner_item, states);
+        adapter.setDropDownViewResource(
+                android.R.layout.simple_spinner_dropdown_item);
+        mFontSize.setAdapter(adapter);
+
+        mPreview = (TextView) findViewById(R.id.preview);
+        mPreview.setText(r.getText(R.string.font_size_preview_text));
+
+        Button save = (Button) findViewById(R.id.save);
+        save.setText(r.getText(R.string.font_size_save));
+        save.setOnClickListener(this);
+
+        mTextSizeTyped = new TypedValue();
+        TypedArray styledAttributes = 
+            obtainStyledAttributes(android.R.styleable.TextView);
+        styledAttributes.getValue(android.R.styleable.TextView_textSize,
+                mTextSizeTyped);
+
+        DisplayMetrics metrics = getResources().getDisplayMetrics();
+        mDisplayMetrics = new DisplayMetrics();
+        mDisplayMetrics.density = metrics.density;
+        mDisplayMetrics.heightPixels = metrics.heightPixels;
+        mDisplayMetrics.scaledDensity = metrics.scaledDensity;
+        mDisplayMetrics.widthPixels = metrics.widthPixels;
+        mDisplayMetrics.xdpi = metrics.xdpi;
+        mDisplayMetrics.ydpi = metrics.ydpi;
+        
+        styledAttributes.recycle();
+    }
+
+    @Override
+    public void onResume() {
+        super.onResume();
+        try {
+            mCurConfig.updateFrom(
+                ActivityManagerNative.getDefault().getConfiguration());
+        } catch (RemoteException e) {
+        }
+        if (mCurConfig.fontScale < 1) {
+            mFontSize.setSelection(0);
+        } else if (mCurConfig.fontScale > 1) {
+            mFontSize.setSelection(2);
+        } else {
+            mFontSize.setSelection(1);
+        }
+        updateFontScale();
+    }
+
+    private void updateFontScale() {
+        mDisplayMetrics.scaledDensity = mDisplayMetrics.density *
+                mCurConfig.fontScale;
+
+        float size = mTextSizeTyped.getDimension(mDisplayMetrics);
+        mPreview.setTextSize(TypedValue.COMPLEX_UNIT_PX, size);
+    }
+
+    public void onClick(View v) {
+        try {
+            ActivityManagerNative.getDefault().updateConfiguration(mCurConfig);
+        } catch (RemoteException e) {
+        }
+        finish();
+    }
+
+    private Spinner.OnItemSelectedListener mFontSizeChanged
+                                    = new Spinner.OnItemSelectedListener() {
+        public void onItemSelected(android.widget.AdapterView av, View v,
+                                    int position, long id) {
+            if (position == 0) {
+                mCurConfig.fontScale = .75f;
+            } else if (position == 2) {
+                mCurConfig.fontScale = 1.25f;
+            } else {
+                mCurConfig.fontScale = 1.0f;
+            }
+
+            updateFontScale();
+        }
+
+        public void onNothingSelected(android.widget.AdapterView av) {
+        }
+    };
+
+    private Spinner mFontSize;
+    private TextView mPreview;
+    private TypedValue mTextSizeTyped;
+    private DisplayMetrics mDisplayMetrics;
+    private Configuration mCurConfig = new Configuration();
+}