Examples with ImageHeaderBitmap org.apache.poi.sl.image.ImageHeaderBitmap used on opensource projects

Example 1 with ImageHeaderBitmap

use of org.apache.poi.sl.image.ImageHeaderBitmap in project poi by apache.

the class XSLFPictureData method cacheProperties.

/**
     * Determine and cache image properties
     */
protected void cacheProperties() {
    if (origSize == null || checksum == null) {
        byte[] data = getData();
        checksum = IOUtils.calculateChecksum(data);
        PictureType pt = getType();
        if (pt == null) {
            origSize = new Dimension(1, 1);
            return;
        }
        switch(pt) {
            case EMF:
                origSize = new ImageHeaderEMF(data, 0).getSize();
                break;
            case WMF:
                // wmf files in pptx usually have their placeable header 
                // stripped away, so this returns only the dummy size
                origSize = new ImageHeaderWMF(data, 0).getSize();
                break;
            case PICT:
                origSize = new ImageHeaderPICT(data, 0).getSize();
                break;
            default:
                origSize = new ImageHeaderBitmap(data, 0).getSize();
                break;
        }
    }
}