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Fix text not vertically centered when adjusting line height

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Fixes #193
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Kovid Goyal 2017-11-29 08:27:28 +05:30
parent 99888996a0
commit d3e8c616b0
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2 changed files with 20 additions and 0 deletions
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14
CHANGELOG.rst
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@ -3,6 +3,20 @@ Changelog
kitty is a feature full, cross-platform, *fast*, GPU based terminal emulator.
version 0.5.0 [future]
---------------------------
- Add an option to control the thickness of lines in box drawing characters
- Increase max. allowed ligature length to nine characters
- Fix text not vertically centered when adjusting line height
- Fix unicode block characters not being rendered properly
- Fix shift+up/down not rendering correct escape codes
version 0.5.0 [2017-11-19]
---------------------------

6
kitty/fonts.c
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@ -283,11 +283,17 @@ update_cell_metrics() {
CALL(fonts.bold_font_idx, 0, false); CALL(fonts.italic_font_idx, 0, false); CALL(fonts.bi_font_idx, 0, false);
cell_metrics(fonts.fonts[fonts.medium_font_idx].face, &cell_width, &cell_height, &baseline, &underline_position, &underline_thickness);
if (!cell_width) { PyErr_SetString(PyExc_ValueError, "Failed to calculate cell width for the specified font."); return NULL; }
unsigned int before_cell_height = cell_height;
if (OPT(adjust_line_height_px) != 0) cell_height += OPT(adjust_line_height_px);
if (OPT(adjust_line_height_frac) != 0.f) cell_height *= OPT(adjust_line_height_frac);
int line_height_adjustment = cell_height - before_cell_height;
if (cell_height < 4) { PyErr_SetString(PyExc_ValueError, "line height too small after adjustment"); return NULL; }
if (cell_height > 1000) { PyErr_SetString(PyExc_ValueError, "line height too large after adjustment"); return NULL; }
underline_position = MIN(cell_height - 1, underline_position);
if (line_height_adjustment > 1) {
baseline += line_height_adjustment / 2;
underline_position += line_height_adjustment / 2;
}
sprite_tracker_set_layout(cell_width, cell_height);
global_state.cell_width = cell_width; global_state.cell_height = cell_height;
free(canvas); canvas = malloc(CELLS_IN_CANVAS * cell_width * cell_height);