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main: implement bold+italic fonts

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Daniel Eklöf 2019-06-22 21:32:51 +02:00
parent e600e75810
commit 4b6ea810fc
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GPG key ID: 5BBD4992C116573F
1 changed files with 32 additions and 8 deletions
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40
main.c
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@ -47,7 +47,7 @@ struct wayland {
struct context {
bool quit;
cairo_scaled_font_t *font;
cairo_scaled_font_t *fonts[8];
cairo_font_extents_t fextents;
int width;
@ -68,6 +68,13 @@ static const struct wl_callback_listener frame_listener = {
.done = &frame_callback,
};
static cairo_scaled_font_t *
attrs_to_font(struct context *c, const struct attributes *attrs)
{
int idx = attrs->italic << 1 | attrs->bold;
return c->fonts[idx];
}
static void
grid_render_update(struct context *c, struct buffer *buf, const struct damage *dmg)
{
@ -106,6 +113,8 @@ grid_render_update(struct context *c, struct buffer *buf, const struct damage *d
double fg = (double)((cell->attrs.foreground >> 16) & 0xff) / 255.0;
double fb = (double)((cell->attrs.foreground >> 8) & 0xff) / 255.0;
cairo_scaled_font_t *font = attrs_to_font(c, &cell->attrs);
cairo_set_scaled_font(buf->cairo, font);
if (has_cursor)
cairo_set_source_rgba(buf->cairo, fr, fg, fb, 1.0);
else
@ -119,7 +128,7 @@ grid_render_update(struct context *c, struct buffer *buf, const struct damage *d
int num_glyphs = 0;
cairo_status_t status = cairo_scaled_font_text_to_glyphs(
c->font, x, y + c->fextents.ascent,
font, x, y + c->fextents.ascent,
cell->c, strlen(cell->c), &glyphs, &num_glyphs,
NULL, NULL, NULL);
@ -288,7 +297,6 @@ grid_render(struct context *c)
struct buffer *buf = shm_get_buffer(c->wl.shm, c->width, c->height);
cairo_set_operator(buf->cairo, CAIRO_OPERATOR_SOURCE);
cairo_set_scaled_font(buf->cairo, c->font);
//bool scroll = false;
tll_foreach(c->term.grid.damage, it) {
@ -670,11 +678,25 @@ main(int argc, const char *const *argv)
thrd_create(&keyboard_repeater_id, &keyboard_repeater, &c.term);
const char *font_name = "Dina:pixelsize=12";
c.font = font_from_name(font_name);
if (c.font == NULL)
c.fonts[0] = font_from_name(font_name);
if (c.fonts[0] == NULL)
goto out;
cairo_scaled_font_extents(c.font, &c.fextents);
{
char fname[1024];
snprintf(fname, sizeof(fname), "%s:style=bold", font_name);
c.fonts[1] = font_from_name(fname);
snprintf(fname, sizeof(fname), "%s:style=italic", font_name);
c.fonts[2] = font_from_name(fname);
snprintf(fname, sizeof(fname), "%s:style=bold italic", font_name);
c.fonts[3] = font_from_name(fname);
/* TODO; underline */
}
cairo_scaled_font_extents(c.fonts[0], &c.fextents);
LOG_DBG("font: height: %.2f, x-advance: %.2f",
c.fextents.height, c.fextents.max_x_advance);
@ -840,8 +862,10 @@ out:
free(c.term.grid.cells);
if (c.font != NULL)
cairo_scaled_font_destroy(c.font);
for (size_t i = 0; i < sizeof(c.fonts) / sizeof(c.fonts[0]); i++) {
if (c.fonts[i] != NULL)
cairo_scaled_font_destroy(c.fonts[i]);
}
if (c.term.ptmx != -1)
close(c.term.ptmx);