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Replaced GTK3 palette font styling with CSS-compliant properties derived from PangoFontDescription, avoiding the deprecated Pango font: syntax in generated CSS.

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Added a GTK3-only helper to translate Pango font fields into font-family, font-size, font-style, font-weight, font-variant, and font-stretch CSS declarations while preserving GTK2 behavior under #if !HAVE_GTK3.
Reused the GTK3 font CSS helper in the main UI font styling path to eliminate remaining Pango font: shorthand usage that triggers GTK3 theme parsing warnings.
Exposed the GTK3 font CSS helper in gtkutil so callers can emit CSS-compliant font properties consistently.
This commit is contained in:
deepend
2026-01-31 16:37:15 -07:00
parent d8a8e6ce73
commit 8abc95205a
4 changed files with 159 additions and 18 deletions
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120
src/fe-gtk/gtkutil.c
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@@ -161,6 +161,118 @@ gtkutil_button_new_from_stock (const char *stock, const char *label)
}
#if HAVE_GTK3
void
gtkutil_append_font_css (GString *css, const PangoFontDescription *font_desc)
{
PangoFontMask mask;
if (!font_desc)
return;
mask = pango_font_description_get_set_fields (font_desc);
if (mask & PANGO_FONT_MASK_FAMILY)
{
const char *family = pango_font_description_get_family (font_desc);
if (family && *family)
g_string_append_printf (css, " font-family: \"%s\";", family);
}
if (mask & PANGO_FONT_MASK_STYLE)
{
const char *style = "normal";
switch (pango_font_description_get_style (font_desc))
{
case PANGO_STYLE_ITALIC:
style = "italic";
break;
case PANGO_STYLE_OBLIQUE:
style = "oblique";
break;
default:
style = "normal";
break;
}
g_string_append_printf (css, " font-style: %s;", style);
}
if (mask & PANGO_FONT_MASK_VARIANT)
{
const char *variant = "normal";
if (pango_font_description_get_variant (font_desc) == PANGO_VARIANT_SMALL_CAPS)
variant = "small-caps";
g_string_append_printf (css, " font-variant: %s;", variant);
}
if (mask & PANGO_FONT_MASK_WEIGHT)
{
int weight = (int) pango_font_description_get_weight (font_desc);
if (weight < 100)
weight = 100;
if (weight > 900)
weight = 900;
g_string_append_printf (css, " font-weight: %d;", weight);
}
if (mask & PANGO_FONT_MASK_STRETCH)
{
const char *stretch = "normal";
switch (pango_font_description_get_stretch (font_desc))
{
case PANGO_STRETCH_ULTRA_CONDENSED:
stretch = "ultra-condensed";
break;
case PANGO_STRETCH_EXTRA_CONDENSED:
stretch = "extra-condensed";
break;
case PANGO_STRETCH_CONDENSED:
stretch = "condensed";
break;
case PANGO_STRETCH_SEMI_CONDENSED:
stretch = "semi-condensed";
break;
case PANGO_STRETCH_SEMI_EXPANDED:
stretch = "semi-expanded";
break;
case PANGO_STRETCH_EXPANDED:
stretch = "expanded";
break;
case PANGO_STRETCH_EXTRA_EXPANDED:
stretch = "extra-expanded";
break;
case PANGO_STRETCH_ULTRA_EXPANDED:
stretch = "ultra-expanded";
break;
default:
stretch = "normal";
break;
}
g_string_append_printf (css, " font-stretch: %s;", stretch);
}
if (mask & PANGO_FONT_MASK_SIZE)
{
double size = (double) pango_font_description_get_size (font_desc) / PANGO_SCALE;
char size_buf[G_ASCII_DTOSTR_BUF_SIZE];
const char *unit = "pt";
if (pango_font_description_get_size_is_absolute (font_desc))
unit = "px";
g_ascii_formatd (size_buf, sizeof (size_buf), "%.2f", size);
g_string_append_printf (css, " font-size: %s%s;", size_buf, unit);
}
}
void
gtkutil_apply_palette (GtkWidget *widget, const GdkRGBA *bg, const GdkRGBA *fg,
const PangoFontDescription *font_desc)
@@ -183,7 +295,6 @@ gtkutil_apply_palette (GtkWidget *widget, const GdkColor *bg, const GdkColor *fg
GString *css;
gchar *bg_color = NULL;
gchar *fg_color = NULL;
gchar *font_str = NULL;
if (!bg && !fg && !font_desc)
{
@@ -217,11 +328,7 @@ gtkutil_apply_palette (GtkWidget *widget, const GdkColor *bg, const GdkColor *fg
fg_color = gdk_rgba_to_string (fg);
g_string_append_printf (css, " color: %s;", fg_color);
}
if (font_desc)
{
font_str = pango_font_description_to_string (font_desc);
g_string_append_printf (css, " font: %s;", font_str);
}
gtkutil_append_font_css (css, font_desc);
g_string_append (css, " }");
gtk_css_provider_load_from_data (provider, css->str, -1, NULL);
@@ -235,7 +342,6 @@ gtkutil_apply_palette (GtkWidget *widget, const GdkColor *bg, const GdkColor *fg
g_string_free (css, TRUE);
g_free (bg_color);
g_free (fg_color);
g_free (font_str);
}
#else
gtk_widget_modify_base (widget, GTK_STATE_NORMAL, bg);