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Add pixel offset

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Add a formatting command to offset the text position by a pixel amount.
This commit is contained in:
Steven Allen 2014-03-01 13:31:27 -05:00
parent c788534107
commit 892e43a3bc
2 changed files with 46 additions and 12 deletions
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4
README.pod
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@ -89,6 +89,10 @@ Aligns the following text to the center of the screen.
Aligns the following text to the right side of the screen.
=item B<O>I<width>
Offset the current position by I<width> pixels in the alignment direction.
=item B<B>I<color>
Set the text background color. The parameter I<color> can be I<-> or a color in one of the formats mentioned before. The special value I<-> resets the color to the default one.

54
lemonbar.c
View File

@ -186,14 +186,8 @@ xcb_void_cookie_t xcb_poly_text_16_simple(xcb_connection_t * c,
}
int
draw_char (monitor_t *mon, font_t *cur_font, int x, int align, uint16_t ch)
shift (monitor_t *mon, int x, int align, int ch_width)
{
int ch_width;
ch_width = (cur_font->width_lut) ?
cur_font->width_lut[ch - cur_font->char_min].character_width:
cur_font->width;
switch (align) {
case ALIGN_C:
xcb_copy_area(c, mon->pixmap, mon->pixmap, gc[GC_DRAW],
@ -213,6 +207,34 @@ draw_char (monitor_t *mon, font_t *cur_font, int x, int align, uint16_t ch)
// Draw the background first
fill_rect(mon->pixmap, gc[GC_CLEAR], x, 0, ch_width, bh);
return x;
}
void
draw_lines (monitor_t *mon, int x, int w)
{
/* We can render both at the same time */
if (attrs & ATTR_OVERL)
fill_rect(mon->pixmap, gc[GC_ATTR], x, 0, w, bu);
if (attrs & ATTR_UNDERL)
fill_rect(mon->pixmap, gc[GC_ATTR], x, bh - bu, w, bu);
}
void
draw_shift (monitor_t *mon, int x, int align, int w)
{
x = shift(mon, x, align, w);
draw_lines(mon, x, w);
}
int
draw_char (monitor_t *mon, font_t *cur_font, int x, int align, uint16_t ch)
{
int ch_width = (cur_font->width_lut) ?
cur_font->width_lut[ch - cur_font->char_min].character_width:
cur_font->width;
x = shift(mon, x, align, ch_width);
// xcb accepts string in UCS-2 BE, so swap
ch = (ch >> 8) | (ch << 8);
@ -222,11 +244,7 @@ draw_char (monitor_t *mon, font_t *cur_font, int x, int align, uint16_t ch)
x, bh / 2 + cur_font->height / 2 - cur_font->descent,
1, &ch);
// We can render both at the same time
if (attrs & ATTR_OVERL)
fill_rect(mon->pixmap, gc[GC_ATTR], x, 0, ch_width, bu);
if (attrs & ATTR_UNDERL)
fill_rect(mon->pixmap, gc[GC_ATTR], x, bh - bu, ch_width, bu);
draw_lines(mon, x, ch_width);
return ch_width;
}
@ -490,6 +508,7 @@ parse (char *text)
if (p[0] == '%' && p[1] == '{' && (block_end = strchr(p++, '}'))) {
p++;
while (p < block_end) {
int w;
while (isspace(*p))
p++;
@ -542,6 +561,17 @@ parse (char *text)
p++;
pos_x = 0;
break;
case 'O':
errno = 0;
w = (int) strtoul(p, &p, 10);
if (errno)
continue;
draw_shift(cur_mon, pos_x, align, w);
pos_x += w;
area_shift(cur_mon->window, align, w);
break;
case 'T':
if (*p == '-') { //Reset to automatic font selection