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compute the number of digits needed in number_lines highlighter

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This commit is contained in:
Maxime Coste 2012-02-22 20:43:59 +00:00
parent 46c614c4a2
commit aeac9484b0
1 changed files with 9 additions and 3 deletions
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12
src/highlighters.cc
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@ -140,7 +140,13 @@ void show_line_numbers(DisplayBuffer& display_buffer)
const Buffer& buffer = display_buffer.front().begin().buffer(); const Buffer& buffer = display_buffer.front().begin().buffer();
BufferCoord coord = buffer.line_and_column_at(display_buffer.begin()->begin()); BufferCoord coord = buffer.line_and_column_at(display_buffer.begin()->begin());
int last_line = buffer.line_and_column_at(display_buffer.back().end()-1).line; int last_line = buffer.line_count()-1;
int digit_count = 0;
for (int c = last_line; c > 0; c /= 10)
++digit_count;
char format[] = "%?d ";
format[1] = '0' + digit_count;
for (; coord.line <= last_line; ++coord.line) for (; coord.line <= last_line; ++coord.line)
{ {
@ -161,8 +167,8 @@ void show_line_numbers(DisplayBuffer& display_buffer)
atom_it->begin(), atom_it->begin(), atom_it->begin(), atom_it->begin(),
Color::Black, Color::White)); Color::Black, Color::White));
char buffer[6]; char buffer[10];
snprintf(buffer, 6, "%3d ", coord.line + 1); snprintf(buffer, 10, format, coord.line + 1);
display_buffer.replace_atom_content(atom_it, buffer); display_buffer.replace_atom_content(atom_it, buffer);
} }
} }