Removing all dependencies of launcher code on wallpaper-picker

> WallpaperPicker can still depend on launcher code, but not the
other way round.

Change-Id: I93a07f985c3955c638a68a5fad9c09b184a879b9

4 files changed, 37 insertions, 136 deletions

diff --git a/WallpaperPicker/src/com/android/gallery3d/common/BitmapUtils.java b/WallpaperPicker/src/com/android/gallery3d/common/BitmapUtils.java
index 347001783..9ac5c1bf7 100644
--- a/WallpaperPicker/src/com/android/gallery3d/common/BitmapUtils.java
+++ b/WallpaperPicker/src/com/android/gallery3d/common/BitmapUtils.java
@@ -16,20 +16,12 @@
 
 package com.android.gallery3d.common;
 
-import android.annotation.TargetApi;
 import android.content.Context;
 import android.content.res.Resources;
-import android.graphics.Bitmap;
-import android.graphics.Canvas;
-import android.graphics.Paint;
-import android.graphics.Point;
 import android.net.Uri;
-import android.os.Build;
 import android.util.Log;
-import android.view.WindowManager;
 
 import com.android.gallery3d.exif.ExifInterface;
-import com.android.launcher3.WallpaperCropActivity;
 
 import java.io.BufferedInputStream;
 import java.io.IOException;
@@ -49,92 +41,6 @@ public class BitmapUtils {
                 : initialSize / 8 * 8;
     }
 
-    public static Bitmap resizeBitmapByScale(
-            Bitmap bitmap, float scale, boolean recycle) {
-        int width = Math.round(bitmap.getWidth() * scale);
-        int height = Math.round(bitmap.getHeight() * scale);
-        if (width == bitmap.getWidth()
-                && height == bitmap.getHeight()) return bitmap;
-        Bitmap target = Bitmap.createBitmap(width, height, getConfig(bitmap));
-        Canvas canvas = new Canvas(target);
-        canvas.scale(scale, scale);
-        Paint paint = new Paint(Paint.FILTER_BITMAP_FLAG | Paint.DITHER_FLAG);
-        canvas.drawBitmap(bitmap, 0, 0, paint);
-        if (recycle) bitmap.recycle();
-        return target;
-    }
-
-    private static Bitmap.Config getConfig(Bitmap bitmap) {
-        Bitmap.Config config = bitmap.getConfig();
-        if (config == null) {
-            config = Bitmap.Config.ARGB_8888;
-        }
-        return config;
-    }
-
-    /**
-     * As a ratio of screen height, the total distance we want the parallax effect to span
-     * horizontally
-     */
-    public static float wallpaperTravelToScreenWidthRatio(int width, int height) {
-        float aspectRatio = width / (float) height;
-
-        // At an aspect ratio of 16/10, the wallpaper parallax effect should span 1.5 * screen width
-        // At an aspect ratio of 10/16, the wallpaper parallax effect should span 1.2 * screen width
-        // We will use these two data points to extrapolate how much the wallpaper parallax effect
-        // to span (ie travel) at any aspect ratio:
-
-        final float ASPECT_RATIO_LANDSCAPE = 16/10f;
-        final float ASPECT_RATIO_PORTRAIT = 10/16f;
-        final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE = 1.5f;
-        final float WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT = 1.2f;
-
-        // To find out the desired width at different aspect ratios, we use the following two
-        // formulas, where the coefficient on x is the aspect ratio (width/height):
-        //   (16/10)x + y = 1.5
-        //   (10/16)x + y = 1.2
-        // We solve for x and y and end up with a final formula:
-        final float x =
-            (WALLPAPER_WIDTH_TO_SCREEN_RATIO_LANDSCAPE - WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT) /
-            (ASPECT_RATIO_LANDSCAPE - ASPECT_RATIO_PORTRAIT);
-        final float y = WALLPAPER_WIDTH_TO_SCREEN_RATIO_PORTRAIT - x * ASPECT_RATIO_PORTRAIT;
-        return x * aspectRatio + y;
-    }
-
-    private static Point sDefaultWallpaperSize;
-
-    @TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
-    public static Point getDefaultWallpaperSize(Resources res, WindowManager windowManager) {
-        if (sDefaultWallpaperSize == null) {
-            Point minDims = new Point();
-            Point maxDims = new Point();
-            windowManager.getDefaultDisplay().getCurrentSizeRange(minDims, maxDims);
-
-            int maxDim = Math.max(maxDims.x, maxDims.y);
-            int minDim = Math.max(minDims.x, minDims.y);
-
-            if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.JELLY_BEAN_MR1) {
-                Point realSize = new Point();
-                windowManager.getDefaultDisplay().getRealSize(realSize);
-                maxDim = Math.max(realSize.x, realSize.y);
-                minDim = Math.min(realSize.x, realSize.y);
-            }
-
-            // We need to ensure that there is enough extra space in the wallpaper
-            // for the intended parallax effects
-            final int defaultWidth, defaultHeight;
-            if (res.getConfiguration().smallestScreenWidthDp >= 720) {
-                defaultWidth = (int) (maxDim * wallpaperTravelToScreenWidthRatio(maxDim, minDim));
-                defaultHeight = maxDim;
-            } else {
-                defaultWidth = Math.max((int) (minDim * WallpaperCropActivity.WALLPAPER_SCREENS_SPAN), maxDim);
-                defaultHeight = maxDim;
-            }
-            sDefaultWallpaperSize = new Point(defaultWidth, defaultHeight);
-        }
-        return sDefaultWallpaperSize;
-    }
-
     public static int getRotationFromExif(Context context, Uri uri) {
         return BitmapUtils.getRotationFromExifHelper(null, 0, context, uri);
     }
diff --git a/WallpaperPicker/src/com/android/launcher3/LauncherWallpaperPickerActivity.java b/WallpaperPicker/src/com/android/launcher3/LauncherWallpaperPickerActivity.java
new file mode 100644
index 000000000..091c05462
--- /dev/null
+++ b/WallpaperPicker/src/com/android/launcher3/LauncherWallpaperPickerActivity.java
@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2013 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.launcher3;
+
+// TODO: Remove this class
+public class LauncherWallpaperPickerActivity extends WallpaperPickerActivity {
+}
\ No newline at end of file
diff --git a/WallpaperPicker/src/com/android/launcher3/WallpaperCropActivity.java b/WallpaperPicker/src/com/android/launcher3/WallpaperCropActivity.java
index 5b2943a65..c238390e3 100644
--- a/WallpaperPicker/src/com/android/launcher3/WallpaperCropActivity.java
+++ b/WallpaperPicker/src/com/android/launcher3/WallpaperCropActivity.java
@@ -38,13 +38,13 @@ import android.os.Message;
 import android.util.Log;
 import android.view.Display;
 import android.view.View;
-import android.view.WindowManager;
 import android.widget.Toast;
 
 import com.android.gallery3d.common.BitmapCropTask;
 import com.android.gallery3d.common.BitmapUtils;
 import com.android.gallery3d.common.Utils;
 import com.android.launcher3.util.Thunk;
+import com.android.launcher3.util.WallpaperUtils;
 import com.android.photos.BitmapRegionTileSource;
 import com.android.photos.BitmapRegionTileSource.BitmapSource;
 import com.android.photos.BitmapRegionTileSource.BitmapSource.InBitmapProvider;
@@ -57,8 +57,8 @@ import java.util.WeakHashMap;
 public class WallpaperCropActivity extends Activity implements Handler.Callback {
     private static final String LOGTAG = "Launcher3.CropActivity";
 
-    protected static final String WALLPAPER_WIDTH_KEY = "wallpaper.width";
-    protected static final String WALLPAPER_HEIGHT_KEY = "wallpaper.height";
+    protected static final String WALLPAPER_WIDTH_KEY = WallpaperUtils.WALLPAPER_WIDTH_KEY;
+    protected static final String WALLPAPER_HEIGHT_KEY = WallpaperUtils.WALLPAPER_HEIGHT_KEY;
 
     /**
      * The maximum bitmap size we allow to be returned through the intent.
@@ -68,7 +68,7 @@ public class WallpaperCropActivity extends Activity implements Handler.Callback
      * array instead of a Bitmap instance to avoid overhead.
      */
     public static final int MAX_BMAP_IN_INTENT = 750000;
-    public static final float WALLPAPER_SCREENS_SPAN = 2f;
+    public static final float WALLPAPER_SCREENS_SPAN = WallpaperUtils.WALLPAPER_SCREENS_SPAN;
 
     private static final int MSG_LOAD_IMAGE = 1;
 
@@ -290,10 +290,6 @@ public class WallpaperCropActivity extends Activity implements Handler.Callback
         return getResources().getBoolean(R.bool.allow_rotation);
     }
 
-    public static String getSharedPreferencesKey() {
-        return LauncherFiles.WALLPAPER_CROP_PREFERENCES_KEY;
-    }
-
     protected void setWallpaper(Uri uri, final boolean finishActivityWhenDone) {
         int rotation = BitmapUtils.getRotationFromExif(this, uri);
         BitmapCropTask cropTask = new BitmapCropTask(
@@ -319,7 +315,7 @@ public class WallpaperCropActivity extends Activity implements Handler.Callback
         // this device
         int rotation = BitmapUtils.getRotationFromExif(res, resId);
         Point inSize = mCropView.getSourceDimensions();
-        Point outSize = BitmapUtils.getDefaultWallpaperSize(getResources(),
+        Point outSize = WallpaperUtils.getDefaultWallpaperSize(getResources(),
                 getWindowManager());
         RectF crop = Utils.getMaxCropRect(
                 inSize.x, inSize.y, outSize.x, outSize.y, false);
@@ -352,7 +348,7 @@ public class WallpaperCropActivity extends Activity implements Handler.Callback
         d.getSize(displaySize);
         boolean isPortrait = displaySize.x < displaySize.y;
 
-        Point defaultWallpaperSize = BitmapUtils.getDefaultWallpaperSize(getResources(),
+        Point defaultWallpaperSize = WallpaperUtils.getDefaultWallpaperSize(getResources(),
                 getWindowManager());
         // Get the crop
         RectF cropRect = mCropView.getCrop();
@@ -435,7 +431,7 @@ public class WallpaperCropActivity extends Activity implements Handler.Callback
     }
 
     protected void updateWallpaperDimensions(int width, int height) {
-        String spKey = getSharedPreferencesKey();
+        String spKey = LauncherFiles.WALLPAPER_CROP_PREFERENCES_KEY;
         SharedPreferences sp = getSharedPreferences(spKey, Context.MODE_MULTI_PROCESS);
         SharedPreferences.Editor editor = sp.edit();
         if (width != 0 && height != 0) {
@@ -446,36 +442,10 @@ public class WallpaperCropActivity extends Activity implements Handler.Callback
             editor.remove(WALLPAPER_HEIGHT_KEY);
         }
         editor.commit();
-
-        suggestWallpaperDimension(getResources(),
+        WallpaperUtils.suggestWallpaperDimension(getResources(),
                 sp, getWindowManager(), WallpaperManager.getInstance(this), true);
     }
 
-    public static void suggestWallpaperDimension(Resources res,
-            final SharedPreferences sharedPrefs,
-            WindowManager windowManager,
-            final WallpaperManager wallpaperManager, boolean fallBackToDefaults) {
-        final Point defaultWallpaperSize = BitmapUtils.getDefaultWallpaperSize(res, windowManager);
-        // If we have saved a wallpaper width/height, use that instead
-
-        int savedWidth = sharedPrefs.getInt(WALLPAPER_WIDTH_KEY, -1);
-        int savedHeight = sharedPrefs.getInt(WALLPAPER_HEIGHT_KEY, -1);
-
-        if (savedWidth == -1 || savedHeight == -1) {
-            if (!fallBackToDefaults) {
-                return;
-            } else {
-                savedWidth = defaultWallpaperSize.x;
-                savedHeight = defaultWallpaperSize.y;
-            }
-        }
-
-        if (savedWidth != wallpaperManager.getDesiredMinimumWidth() ||
-                savedHeight != wallpaperManager.getDesiredMinimumHeight()) {
-            wallpaperManager.suggestDesiredDimensions(savedWidth, savedHeight);
-        }
-    }
-
     static class LoadRequest {
         BitmapSource src;
         boolean touchEnabled;
diff --git a/WallpaperPicker/src/com/android/launcher3/WallpaperPickerActivity.java b/WallpaperPicker/src/com/android/launcher3/WallpaperPickerActivity.java
index 1364df3ed..152cac4cc 100644
--- a/WallpaperPicker/src/com/android/launcher3/WallpaperPickerActivity.java
+++ b/WallpaperPicker/src/com/android/launcher3/WallpaperPickerActivity.java
@@ -71,6 +71,7 @@ import com.android.gallery3d.common.BitmapCropTask;
 import com.android.gallery3d.common.BitmapUtils;
 import com.android.gallery3d.common.Utils;
 import com.android.launcher3.util.Thunk;
+import com.android.launcher3.util.WallpaperUtils;
 import com.android.photos.BitmapRegionTileSource;
 import com.android.photos.BitmapRegionTileSource.BitmapSource;
 import com.android.photos.views.TiledImageRenderer.TileSource;
@@ -239,7 +240,7 @@ public class WallpaperPickerActivity extends WallpaperCropActivity {
 
                 @Override
                 public float getScale(TileSource src) {
-                    Point wallpaperSize = BitmapUtils.getDefaultWallpaperSize(
+                    Point wallpaperSize = WallpaperUtils.getDefaultWallpaperSize(
                             a.getResources(), a.getWindowManager());
                     RectF crop = Utils.getMaxCropRect(
                             src.getImageWidth(), src.getImageHeight(),
@@ -1109,9 +1110,12 @@ public class WallpaperPickerActivity extends WallpaperCropActivity {
         return view;
     }
 
-    // In Launcher3, we override this with a method that catches exceptions
-    // from starting activities; didn't want to copy and paste code into here
     public void startActivityForResultSafely(Intent intent, int requestCode) {
-        startActivityForResult(intent, requestCode);
+        Utilities.startActivityForResultSafely(this, intent, requestCode);
+    }
+
+    @Override
+    public boolean enableRotation() {
+        return Utilities.isRotationEnabled(this);
     }
 }