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Dylan M. Taylor
a305229287
wrap_lines split an over-long word by re-measuring and copying the rest of the word for every piece it cut, and only checked its line limit once the word was done, so one long word in a narrow text box cost word length x pieces. Each new word also re-measured the whole line built so far. Line and piece widths are now running sums of glyph widths (the same sum text_width makes), so every character is measured once, and the line limit is checked while a word is being split. The lines produced are unchanged; a test compares them with the old wrapper.