Mailing-List: contact user-help@poi.apache.org; run by ezmlm
Precedence: bulk
Reply-To: "POI Users List" <user@poi.apache.org>
Received-SPF: pass (athena.apache.org: domain of herve.girod@gmail.com
 designates 209.85.216.46 as permitted sender)
DomainKey-Signature: a=rsa-sha1; c=nofws;
        d=gmail.com; s=gamma;
        h=mime-version:date:message-id:subject:from:to:content-type;
        b=w2kmJJWGzPXg6xysej19XaYRtwz4DvxUe+gImrFGK1mspuf55WvI6IuZVQn9xs8Rbc
         9CW6zZRr/4Bpdf2d7+TP4zDaniG2+LN8IxIGvJx+HJZFytfXoQpKUKELMwHUxBuTOpX6
         cOyuCUQNYJgQ3zPhetRmol0xJo1bHnmfh0f6Q=
MIME-Version: 1.0
Date: Thu, 14 Apr 2011 00:14:02 +0200
Message-ID: <BANLkTinpdRp3sNmdJZquYr30aAHj4-nYeg@mail.gmail.com>
Subject: Some questions for the use of HSLF API
From: Herve Girod <herve.girod@gmail.com>
To: user@poi.apache.org
Content-Type: multipart/alternative; boundary=000e0cdf9d06535d7004a0d42043

--000e0cdf9d06535d7004a0d42043
Content-Type: text/plain; charset=ISO-8859-1

Hello,

I'm using the HSLF API for some time now, and it works very well, but I have
some questions on some things I can't do. I do'nt know if it's because the
API is (still) incomplete on some areas, or just if I'm not using it well.
My questions are:
- Is it possible to embed Fonts in a PowerPoint file by using the API? It's
possible to do it by using an existing PowerPoint file master, but I would
like to do it when I encounter a Font which does not exist in the
FontCollection. For example is it possible to create a new PPFont "from
scratch" using an existing TTF file, and add it to the collection?
- Is it possible to group Shapes? I tried to use ShapeGroups, but the
resulting PPT file still did not have groups of Shapes

And finally, is it possible to add image data to the slides. I tried the
following approach, but it did not work (no exception, but no image either):

    public boolean drawImage(Image image, int dx1, int dy1, int dx2, int
dy2, int sx1, int sy1,  int sx2, int sy2, Color color1, ImageObserver
observer) {
        Rectangle rectangle = new Rectangle(sx1, sy1, sx2 - sx1, sy2 - sy1);
        Shape shape = trans.createTransformedShape(rectangle);
        Rectangle rec = shape.getBounds();
        addImage(image, rec);

        return true;
    }

    private void addImage(Image image, Rectangle rec) {
        SlideShow show = slide.getSlideShow();
        if (image instanceof RenderedImage) {
            try {
                byte[] b = getImageData((RenderedImage)image);
                int idx = show.addPicture(b, Picture.PNG);
                Picture pict = new Picture(idx);
                pict.setAnchor(rec);
                slide.addShape(pict);
            } catch (IOException e) {
            }
        }
    }

    private byte[] getImageData(RenderedImage image) throws IOException {
        ByteArrayOutputStream stream = new ByteArrayOutputStream(100);
        ImageIO.write(image, "png", stream);
        stream.close();

        return stream.toByteArray();
    }


FYI, I have developed a Graphics2D drop-in which draw in a PPT context a
Swing hierarchy, and apart from these problems and other small bugs, it
works well. The project is here: https://sourceforge.net/projects/j661/

Thanks!!

Herve Girod

--000e0cdf9d06535d7004a0d42043--