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Removing all dependencies of launcher code on wallpaper-picker

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

Change-Id: I93a07f985c3955c638a68a5fad9c09b184a879b9
This commit is contained in:
Sunny Goyal
2015-03-20 17:26:30 -07:00
parent 71c3baf5eb
commit 6a1e95a3df
9 changed files with 149 additions and 161 deletions
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WallpaperPicker/src/com/android/gallery3d/common/BitmapUtils.java
-94
View File
@@ -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);
}