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Frank Reininghaus authored
By separating the width and height info, we can save some unnecessary overhead in terms of memory and CPU cycles, and make the calculation of the height of a row (or the width of a column in Compact View) a bit simpler. To achieve this, this patch extends the concept of "logical rows" (which are actually columns in Compact View) to "logical width" and "logical height" (which is the actual height and width, respectively, in Compact View). The distinction between rows/columns and "logical" rows/columns may be a bit confusing, but the confusion is already in the current code, and I hope that it will be mitigated a bit by prefixing the corresponding variables with "logical". REVIEW: 118454
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