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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,7 @@ | ||
| // Font metrics bitfield | ||
| /// Include leading A width and trailing C width in GetWidth() or in DrawText() | ||
| #define INCLUDE_AC (1<<0) | ||
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| DEFINE_BITFIELD(font_flags, list( | ||
| "INCLUDE_AC" = INCLUDE_AC, | ||
| )) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,78 @@ | ||
| /// A font datum, it exists to define a custom font to use in a span style later. | ||
| /datum/font | ||
| /// Font name, just so people know what to put in their span style. | ||
| var/name | ||
| /// The font file we link to. | ||
| var/font_family | ||
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| /// Font features and metrics | ||
| /// Generated by Lummox's dmifontsplus (https://www.byond.com/developer/LummoxJR/DmiFontsPlus) | ||
| /// Note: these variable names have been changed, so you can't straight copy/paste from dmifontsplus.exe | ||
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| /// list of font size/spacing metrics | ||
| var/list/metrics | ||
| /// total height of a line | ||
| var/height | ||
| /// distance above baseline (including whitespace) | ||
| var/ascent | ||
| /// distance below baseline | ||
| var/descent | ||
| /// average character width | ||
| var/average_width | ||
| /// maximum character width | ||
| var/max_width | ||
| /// extra width, such as from italics, for a line | ||
| var/overhang | ||
| /// internal leading vertical space, for accent marks | ||
| var/in_leading | ||
| /// external leading vertical space, just plain blank | ||
| var/ex_leading | ||
| /// default character (for undefined chars) | ||
| var/default_character | ||
| /// first character in metrics | ||
| var/start | ||
| /// last character in metrics | ||
| var/end | ||
|
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| /// Get font metrics | ||
| /// From Lummox's dmifontsplus (https://www.byond.com/developer/LummoxJR/DmiFontsPlus) | ||
| /datum/font/proc/get_metrics(text, flags, first_line) | ||
| . = 0 | ||
| var/longest = 0 | ||
| if(!length(text)) | ||
| return | ||
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| var/i = 1 | ||
| var/idx | ||
| while(i <= length(text)) | ||
| var/character = text2ascii(text, i++) | ||
| if(character <= 10) | ||
| if(character <= 7) | ||
| . += character // spacers for justification | ||
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| if(character <= 9) | ||
| continue // soft-break chars | ||
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| if(. && idx && !(flags & INCLUDE_AC)) | ||
| . -= max(metrics[idx + 3], 0) | ||
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| longest = max(longest, . + first_line) | ||
| . = 0 | ||
| first_line = 0 | ||
| idx = 0 | ||
| continue | ||
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| idx = (character - start) * 3 | ||
| if(idx <= 0 || idx >= metrics.len) | ||
| idx = (default_character - start) * 3 | ||
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| if(!. && !(flags & INCLUDE_AC)) | ||
| . -= metrics[idx + 1] | ||
| . += metrics[idx + 1] + metrics[idx + 2] + metrics[idx +3] | ||
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| if(. && idx && !(flags & INCLUDE_AC)) | ||
| . -= max(metrics[idx + 3], 0) | ||
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| . = max(. + first_line, longest) | ||
| if(. > 0) | ||
| . += overhang |
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