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terminal: workaround founds with negative line gaps

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Some fonts, even monospaced ones, have a negative line gap (line
height < ascent + descent).

Using the font's line height as cell height will result in some glyphs
overflowing into the cell above or below.

Workaround by using which ever value is the largest: the line height
or ascent + descent.
This commit is contained in:
Daniel Eklöf 2020-03-02 18:43:23 +01:00
parent def4395bd1
commit f235bfdfdf
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1 changed files with 2 additions and 1 deletions
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3
terminal.c
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@ -521,7 +521,8 @@ term_set_fonts(struct terminal *term, struct font *fonts[static 4])
term->cell_width = term->fonts[0]->space_x_advance > 0
? term->fonts[0]->space_x_advance : term->fonts[0]->max_x_advance;
term->cell_height = term->fonts[0]->height;
term->cell_height = max(term->fonts[0]->height,
term->fonts[0]->ascent + term->fonts[0]->descent);
LOG_INFO("cell width=%d, height=%d", term->cell_width, term->cell_height);
render_resize_force(term, term->width, term->height);