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add a blue underline to control characters

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This commit is contained in:
Josh Holtrop 2016-12-29 19:31:58 -05:00
parent 8a8e329959
commit 027e42da5d
1 changed files with 3 additions and 0 deletions
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3
src/gui/BufferPane.cc
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@ -236,6 +236,9 @@ int BufferPane::draw_buffer_line(int screen_row, const Buffer::Iterator & start_
{
if (code_point < 0x20u)
{
m_window->gl()->draw_rect(win_x(x + 2), win_y(y),
m_window->font()->get_advance() * 2 - 4, 1,
0, 0.7, 1.0, 1.0);
m_window->gl()->draw_character(win_x(x), win_y(y), '^', *m_window->font(), 1.0, 1.0, 1.0, 1.0);
m_window->gl()->draw_character(win_x(col_x(screen_column + 1)), win_y(y), code_point | 0x40u, *m_window->font(), 1.0, 1.0, 1.0, 1.0);
}