void u8g2_DrawVLine(u8g2_t *u8g2, u8g2_uint_t x, u8g2_uint_t y, u8g2_uint_t len)
{
#ifdef U8G2_WITH_INTERSECTION
if ( u8g2_IsIntersection(u8g2, x, y, x+1, y+len) == 0 )
return;
#endif /* U8G2_WITH_INTERSECTION */
u8g2_DrawHVLine(u8g2, x, y, len, 1);
}
/* optimized */
int8_t u8g2_font_decode_glyph(u8g2_t *u8g2, const uint8_t *glyph_data)
{
uint8_t a, b;
int8_t x, y;
int8_t d;
int8_t h;
u8g2_font_decode_t *decode = &(u8g2->font_decode);
u8g2_font_setup_decode(u8g2, glyph_data);
h = u8g2->font_decode.glyph_height;
x = u8g2_font_decode_get_signed_bits(decode, u8g2->font_info.bits_per_char_x);
y = u8g2_font_decode_get_signed_bits(decode, u8g2->font_info.bits_per_char_y);
d = u8g2_font_decode_get_signed_bits(decode, u8g2->font_info.bits_per_delta_x);
if ( decode->glyph_width > 0 )
{
#ifdef U8G2_WITH_FONT_ROTATION
decode->target_x = u8g2_add_vector_x(decode->target_x, x, -(h+y), decode->dir);
decode->target_y = u8g2_add_vector_y(decode->target_y, x, -(h+y), decode->dir);
#else
decode->target_x += x;
decode->target_y -= h+y;
#endif
//u8g2_add_vector(&(decode->target_x), &(decode->target_y), x, -(h+y), decode->dir);
#ifdef U8G2_WITH_INTERSECTION
{
u8g2_uint_t x0, x1, y0, y1;
x0 = decode->target_x;
y0 = decode->target_y;
x1 = x0;
y1 = y0;
#ifdef U8G2_WITH_FONT_ROTATION
switch(decode->dir)
{
case 0:
x1 += decode->glyph_width;
y1 += h;
break;
case 1:
x0 -= h;
x0++; /* shift down, because of assymetric boundaries for the interseciton test */
x1++;
y1 += decode->glyph_width;
break;
case 2:
x0 -= decode->glyph_width;
x0++; /* shift down, because of assymetric boundaries for the interseciton test */
x1++;
y0 -= h;
y0++; /* shift down, because of assymetric boundaries for the interseciton test */
y1++;
break;
case 3:
x1 += h;
y0 -= decode->glyph_width;
y0++; /* shift down, because of assymetric boundaries for the interseciton test */
y1++;
break;
}
#else /* U8G2_WITH_FONT_ROTATION */
x1 += decode->glyph_width;
y1 += h;
#endif
if ( u8g2_IsIntersection(u8g2, x0, y0, x1, y1) == 0 )
return d;
}
#endif /* U8G2_WITH_INTERSECTION */
/* reset local x/y position */
decode->x = 0;
decode->y = 0;
/* decode glyph */
for(;;)
{
a = u8g2_font_decode_get_unsigned_bits(decode, u8g2->font_info.bits_per_0);
b = u8g2_font_decode_get_unsigned_bits(decode, u8g2->font_info.bits_per_1);
do
{
u8g2_font_decode_len(u8g2, a, 0);
u8g2_font_decode_len(u8g2, b, 1);
} while( u8g2_font_decode_get_unsigned_bits(decode, 1) != 0 );
if ( decode->y >= h )
break;
}
/* restore the u8g2 draw color, because this is modified by the decode algo */
u8g2->draw_color = decode->fg_color;
}
return d;
}
