docs: static void applyScaleType(ImageView.ScaleType type,
              int dwidth, int dheight,
              int vwidth, int vheight,
              Matrix imageMatrix,
              Matrix outMatrix) {
  
          if (ImageView.ScaleType.CENTER == type) {
              // Center bitmap in view, no scaling.
              outMatrix.setTranslate((vwidth - dwidth) * 0.5f,
                      (vheight - dheight) * 0.5f);
          } else if (ImageView.ScaleType.CENTER_CROP == type) {
              float scale;
              float dx = 0;
              float dy = 0;
  
              if (dwidth * vheight > vwidth * dheight) {
                  scale = (float) vheight / (float) dheight;
                  dx = (vwidth - dwidth * scale) * 0.5f;
              } else {
                  scale = (float) vwidth / (float) dwidth;
                  dy = (vheight - dheight * scale) * 0.5f;
              }
  
              outMatrix.setScale(scale, scale);
              outMatrix.postTranslate(dx, dy);
          } else if (ImageView.ScaleType.CENTER_INSIDE == type) {
              float scale;
              float dx;
              float dy;
  
              if (dwidth <= vwidth && dheight <= vheight) {
                  scale = 1.0f;
              } else {
                  scale = Math.min((float) vwidth / (float) dwidth,
                          (float) vheight / (float) dheight);
              }
  
              dx = (vwidth - dwidth * scale) * 0.5f;
              dy = (vheight - dheight * scale) * 0.5f;
  
              outMatrix.setScale(scale, scale);
              outMatrix.postTranslate(dx, dy);
          } else {
              Matrix.ScaleToFit scaleToFit = scaleTypeToScaleToFit(type);
              if (scaleToFit == null) {
                  outMatrix.set(imageMatrix);
              } else {
                  // Generate the required transform.
                  tmpSrc.set(0, 0, dwidth, dheight);
                  tmpDst.set(0, 0, vwidth, vheight);
                  outMatrix.setRectToRect(tmpSrc, tmpDst, scaleToFit);
              }
          }
      }