Also you may find this article very interesting: http://en.wikipedia.org/wiki/Word_wrap
regards 2011/4/13 Patrick Baggett <[email protected]> > I believe the tutorial has a page for it: > http://www.freetype.org/freetype2/docs/tutorial/step2.html > > <http://www.freetype.org/freetype2/docs/tutorial/step2.html>See section > 4b, namely the function void compute_string_bbox( FT_BBox *abbox ) > > It basically adds up the bounding boxes of each character. > > Effectively, the algorithm looks like: > 0) M <- invalid bounding box > 1) For each glyph G > 1.1) Get kerning, advance pen > 1.2) Get the bounding box as B > 1.3) Add the pen position to B > 1.4) Check if B is larger than the current bounding box M, if so, > update it > 1.5) Advance pen by G.advance > 2) Check if box is valid, correct if necessary > > The compute_string_bbox() function assumes that each character already has > its position set (which includes kerning + advance), so if you haven't > already computed that, use the psuedocode above will get you through. > > > > On Wed, Apr 13, 2011 at 10:23 AM, Leonardo M. Ramé <[email protected]>wrote: > >> Hi, I'm trying to place text over a bitmap using the function below. >> >> If you take a look at the function, there's a "baseline" variable, in >> charge of adjusting the top position of the character bitmap. If I don't >> do this, all character ar aligned to the top "pen_y" point. I don't know >> if this is the recommended way to align text. Please tell me if you know >> a better way. >> >> Also, I want to create a box filled in a color between the image and the >> text. For example, the image in grayscale, then a red box with black text. >> >> My question is, how can I get the measures (in pixels) of the box >> containing all the text, not just each character. >> >> > _______________________________________________ > Freetype mailing list > [email protected] > http://lists.nongnu.org/mailman/listinfo/freetype > >
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