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Implement font fallbacks in the editor
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Opting for not making any changes in the XUI.
This commit is contained in:
Přemysl Eric Janouch 2024-09-02 21:28:53 +02:00
parent ec12e2ac25
commit 9d0acddf9a
Signed by: p
GPG Key ID: A0420B94F92B9493
2 changed files with 24 additions and 14 deletions
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2
NEWS
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@ -2,6 +2,8 @@ Unreleased
* Made global search indicate the search terms, and match on filenames
* X11: added support for font fallbacks to the editor as well
2.1.1 (2024-02-27)

36
nncmpp.c
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@ -5895,28 +5895,36 @@ x11_render_editor (struct widget *self)
{
x11_render_padding (self);
XftFont *font = x11_widget_font (self)->list->font;
struct x11_font *font = x11_widget_font (self);
XftColor color = { .color = *x11_fg (self) };
// A simplistic adaptation of line_editor_write() follows.
int x = self->x, y = self->y + font->ascent;
XGlyphInfo extents = {};
if (g.editor.prompt)
// A simplistic adaptation of tui_render_editor() follows.
const struct line_editor *e = &g.editor;
int x = self->x;
if (e->prompt)
{
FT_UInt i = XftCharIndex (g_xui.dpy, font, g.editor.prompt);
XftDrawGlyphs (g_xui.xft_draw, &color, font, x, y, &i, 1);
XftGlyphExtents (g_xui.dpy, font, &i, 1, &extents);
x += extents.xOff + g_xui.vunit / 4;
hard_assert (e->prompt < 127);
x += x11_font_draw (font, &color, x, self->y,
(char[2]) { e->prompt, 0 }) + g_xui.vunit / 4;
}
// TODO: Adapt x11_font_{hadvance,draw}().
// TODO: Make this scroll around the caret, and fade like labels.
XftDrawString32 (g_xui.xft_draw, &color, font, x, y,
g.editor.line, g.editor.len);
size_t len;
ucs4_t *buf = xcalloc (e->len + 1, sizeof *buf);
*u32_pcpy (buf, e->line, e->point) = 0;
char *a = (char *) u32_to_u8 (buf, u32_strlen (buf) + 1, NULL, &len);
*u32_pcpy (buf, e->line + e->point, e->len - e->point) = 0;
char *b = (char *) u32_to_u8 (buf, u32_strlen (buf) + 1, NULL, &len);
free (buf);
x += x11_font_draw (font, &color, x, self->y, a);
int caret = x;
x += x11_font_draw (font, &color, x, self->y, b);
free (a);
free (b);
XftTextExtents32 (g_xui.dpy, font, g.editor.line, g.editor.point, &extents);
XRenderFillRectangle (g_xui.dpy, PictOpSrc, g_xui.x11_pixmap_picture,
&color.color, x + extents.xOff, self->y, 2, self->height);
&color.color, caret, self->y, 2, self->height);
}
static struct widget *