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Fix input caret contrast in spell entry

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deepend-tildeclub
2026-03-25 17:42:14 -06:00
parent 05f8b4d4b3
commit 8249be816a
1 changed files with 44 additions and 0 deletions
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44
src/fe-gtk/sexy-spell-entry.c
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@@ -136,6 +136,7 @@ static void sexy_spell_entry_finalize(GObject *obj);
static void sexy_spell_entry_destroy(GObject *obj);
static gboolean sexy_spell_entry_draw(GtkWidget *widget, cairo_t *cr);
static gint sexy_spell_entry_button_press(GtkWidget *widget, GdkEventButton *event);
static void sexy_spell_entry_style_updated (GtkWidget *widget);
/* GtkEditable handlers */
static void sexy_spell_entry_changed(GtkEditable *editable, gpointer data);
@@ -280,6 +281,7 @@ sexy_spell_entry_class_init(SexySpellEntryClass *klass)
widget_class->draw = sexy_spell_entry_draw;
widget_class->button_press_event = sexy_spell_entry_button_press;
widget_class->style_updated = sexy_spell_entry_style_updated;
/**
* SexySpellEntry::word-check:
@@ -357,6 +359,47 @@ insert_hiddenchar (SexySpellEntry *entry, guint start, guint end)
pango_attr_list_insert (entry->priv->attr_list, hattr);
}
static guint8
sexy_spell_entry_contrasting_caret_component (guint16 red, guint16 green, guint16 blue)
{
const guint16 luma = (guint16) (((red >> 8) * 299 + (green >> 8) * 587 + (blue >> 8) * 114) / 1000);
return luma >= 128 ? 0x00 : 0xff;
}
static void
sexy_spell_entry_apply_caret_style (SexySpellEntry *entry)
{
ThemeWidgetStyleValues style_values;
guint16 bg_red = 0, bg_green = 0, bg_blue = 0;
guint8 caret;
GtkCssProvider *provider;
GtkStyleContext *context;
char css[120];
theme_get_widget_style_values_for_widget (GTK_WIDGET (entry), &style_values);
theme_palette_color_get_rgb16 (&style_values.background, &bg_red, &bg_green, &bg_blue);
caret = sexy_spell_entry_contrasting_caret_component (bg_red, bg_green, bg_blue);
provider = g_object_get_data (G_OBJECT (entry), "sexy-spell-entry-caret-provider");
if (!provider)
{
provider = gtk_css_provider_new ();
g_object_set_data_full (G_OBJECT (entry), "sexy-spell-entry-caret-provider", provider, g_object_unref);
}
g_snprintf (css, sizeof (css), "#zoitechat-inputbox, #zoitechat-inputbox text { caret-color: #%02x%02x%02x; }",
caret, caret, caret);
gtk_css_provider_load_from_data (provider, css, -1, NULL);
context = gtk_widget_get_style_context (GTK_WIDGET (entry));
gtk_style_context_add_provider (context, GTK_STYLE_PROVIDER (provider), GTK_STYLE_PROVIDER_PRIORITY_USER);
}
static void
sexy_spell_entry_style_updated (GtkWidget *widget)
{
GTK_WIDGET_CLASS (parent_class)->style_updated (widget);
if (SEXY_IS_SPELL_ENTRY (widget))
sexy_spell_entry_apply_caret_style (SEXY_SPELL_ENTRY (widget));
}
static void
insert_underline_error (SexySpellEntry *entry, guint start, guint end)
{
@@ -867,6 +910,7 @@ sexy_spell_entry_init(SexySpellEntry *entry)
g_signal_connect(G_OBJECT(entry), "popup-menu", G_CALLBACK(sexy_spell_entry_popup_menu), entry);
g_signal_connect(G_OBJECT(entry), "populate-popup", G_CALLBACK(sexy_spell_entry_populate_popup), NULL);
g_signal_connect(G_OBJECT(entry), "changed", G_CALLBACK(sexy_spell_entry_changed), NULL);
sexy_spell_entry_apply_caret_style (entry);
}
static void