Bitmap hunt() throws IOException { Bitmap bitmap; if (!skipMemoryCache) { bitmap = cache.get(key); if (bitmap != null) { stats.dispatchCacheHit(); loadedFrom = MEMORY; return bitmap; } } bitmap = decode(data); if (bitmap != null) { stats.dispatchBitmapDecoded(bitmap); if (data.needsTransformation() || exifRotation != 0) { synchronized (DECODE_LOCK) { if (data.needsMatrixTransform() || exifRotation != 0) { bitmap = transformResult(data, bitmap, exifRotation); } if (data.hasCustomTransformations()) { bitmap = applyCustomTransformations(data.transformations, bitmap); } } stats.dispatchBitmapTransformed(bitmap); } } return bitmap; }
static Bitmap transformResult(Request data, Bitmap result, int exifRotation) { int inWidth = result.getWidth(); int inHeight = result.getHeight(); int drawX = 0; int drawY = 0; int drawWidth = inWidth; int drawHeight = inHeight; Matrix matrix = new Matrix(); if (data.needsMatrixTransform()) { int targetWidth = data.targetWidth; int targetHeight = data.targetHeight; float targetRotation = data.rotationDegrees; if (targetRotation != 0) { if (data.hasRotationPivot) { matrix.setRotate(targetRotation, data.rotationPivotX, data.rotationPivotY); } else { matrix.setRotate(targetRotation); } } if (data.centerCrop) { float widthRatio = targetWidth / (float) inWidth; float heightRatio = targetHeight / (float) inHeight; float scale; if (widthRatio > heightRatio) { scale = widthRatio; int newSize = (int) Math.ceil(inHeight * (heightRatio / widthRatio)); drawY = (inHeight - newSize) / 2; drawHeight = newSize; } else { scale = heightRatio; int newSize = (int) Math.ceil(inWidth * (widthRatio / heightRatio)); drawX = (inWidth - newSize) / 2; drawWidth = newSize; } matrix.preScale(scale, scale); } else if (data.centerInside) { float widthRatio = targetWidth / (float) inWidth; float heightRatio = targetHeight / (float) inHeight; float scale = widthRatio < heightRatio ? widthRatio : heightRatio; matrix.preScale(scale, scale); } else if (targetWidth != 0 && targetHeight != 0 // && (targetWidth != inWidth || targetHeight != inHeight)) { // If an explicit target size has been specified and they do not match the results bounds, // pre-scale the existing matrix appropriately. float sx = targetWidth / (float) inWidth; float sy = targetHeight / (float) inHeight; matrix.preScale(sx, sy); } } if (exifRotation != 0) { matrix.preRotate(exifRotation); } Bitmap newResult = Bitmap.createBitmap(result, drawX, drawY, drawWidth, drawHeight, matrix, true); if (newResult != result) { result.recycle(); result = newResult; } return result; }