Relative font-sizes
Hi fop-devs, I am current looking into getting relative font-size property values, e.g. larger or smaller, implemented. The spec gives some leeway in that area, i.e. it says in 7.8.4: If the parent element's size is not close to a table entry, the user agent is free to interpolate between table entries or round off to the closest one.. I would like to implement this as: If the parent element's size is not close to a table entry, FOP will round off to the closest one., that is don't use interpolation and some FOP specific definition of what size not close to a table entry means. Does that sound right to others on the list? Any concerns? Thanks Manuel
Relative font weights and font selection
I was looking at how to implement support for relative font weights (bolder and lighter). The spec says that a relative font weight refers to the next lighter or bolder font. This means we cannot simply subtract/add 100 to the weight but we have to find the next font relative to the current font which is actually lighter or bolder. For example if the current font weight is 400 for most of the default fonts the next bolder font weight is 700. This means this feature actually interacts with or is part of the font selection process. This raises the question if the font selection algorithm needs to be adjusted for this should it be fixed up to support for example list of font family names, font variant and font stretch or even the font selection strategy property including context characters, etc.. The last bit (selection strategy, context characters, glyph availability) may be a bit much for me to attempt at the moment but the other bits look doable. My question for the experienced developers and those fop-devs who look at the overall project: Is this something useful and sensible to attempt at this point in time, i.e. leading up to a 0.9 release? Would this cut across or interfere with the attempt to integrate FOray's font system into FOP? Manuel
