diff options
Diffstat (limited to 'src/com/android/bitmap/util/BitmapUtils.java')
| -rw-r--r-- | src/com/android/bitmap/util/BitmapUtils.java | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/src/com/android/bitmap/util/BitmapUtils.java b/src/com/android/bitmap/util/BitmapUtils.java index 094d771..9ec466b 100644 --- a/src/com/android/bitmap/util/BitmapUtils.java +++ b/src/com/android/bitmap/util/BitmapUtils.java @@ -21,8 +21,8 @@ import android.graphics.Rect; public abstract class BitmapUtils { /** - * Calculate a center-crop rectangle for the given input and output - * parameters. The output rectangle to use is written in the given outRect. + * Calculate a rectangle for the given input and output parameters. The output + * rectangle to use is written in the given outRect. * * @param srcW the source width * @param srcH the source height @@ -34,6 +34,9 @@ public abstract class BitmapUtils { * vertical crop range. * @param sampleSize a scaling factor that rect calculation will only use if * it's more aggressive than regular scaling + * @param horizSliceFrac horizontal slice fraction determines the horizontal + * center point for the crop rect. Range is from [0.0, 1.0]. To + * perform a horizontally centered crop, use 0.5. * @param vertSliceFrac vertical slice fraction determines the vertical * center point for the crop rect. Range is from [0.0, 1.0]. To * perform a vertically centered crop, use 0.5. Otherwise, see @@ -52,8 +55,9 @@ public abstract class BitmapUtils { * @param outRect a Rect to write the resulting crop coordinates into */ public static void calculateCroppedSrcRect(final int srcW, final int srcH, final int dstW, - final int dstH, final int dstSliceH, int sampleSize, final float vertSliceFrac, - final boolean absoluteFrac, final float verticalMultiplier, final Rect outRect) { + final int dstH, final int dstSliceH, int sampleSize, final float horizSliceFrac, + final float vertSliceFrac, final boolean absoluteFrac, final float verticalMultiplier, + final Rect outRect) { if (sampleSize < 1) { sampleSize = 1; } @@ -73,7 +77,7 @@ public abstract class BitmapUtils { final int srcCroppedSliceH = Math.round(dstSliceH * scale); final int srcHalfSliceH = Math.min(srcCroppedSliceH, srcH) / 2; - outRect.left = (srcW - srcCroppedW) / 2; + outRect.left = (int) (horizSliceFrac * (srcW - srcCroppedW)); outRect.right = outRect.left + srcCroppedW; final int centerV; |