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Fix font preview text color on light background

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This commit is contained in:
Haoyu Qiu 2021-12-16 13:59:04 +08:00
parent 58712e96ae
commit 1fb59d13c2
5 changed files with 16 additions and 2 deletions
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4
core/math/color.h
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@ -94,6 +94,10 @@ struct Color {
void invert();
Color inverted() const;
_FORCE_INLINE_ float get_luminance() const {
return 0.2126 * r + 0.7152 * g + 0.0722 * b;
}
_FORCE_INLINE_ Color lerp(const Color &p_to, float p_weight) const {
Color res = *this;

1
core/variant/variant_call.cpp
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@ -1644,6 +1644,7 @@ static void _register_variant_builtin_methods() {
bind_method(Color, lightened, sarray("amount"), varray());
bind_method(Color, darkened, sarray("amount"), varray());
bind_method(Color, blend, sarray("over"), varray());
bind_method(Color, get_luminance, sarray(), varray());
bind_method(Color, is_equal_approx, sarray("to"), varray());

7
doc/classes/Color.xml
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@ -178,6 +178,13 @@
<description>
</description>
</method>
<method name="get_luminance" qualifiers="const">
<return type="float" />
<description>
Returns the luminance of the color in the [code][0.0, 1.0][/code] range.
This is useful when determining light or dark color. Colors with a luminance smaller than 0.5 can be generally considered dark.
</description>
</method>
<method name="get_named_color" qualifiers="static">
<return type="Color" />
<argument index="0" name="idx" type="int" />

2
editor/editor_settings.cpp
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@ -1190,7 +1190,7 @@ bool EditorSettings::is_dark_theme() {
int LIGHT_COLOR = 2;
Color base_color = get("interface/theme/base_color");
int icon_font_color_setting = get("interface/theme/icon_and_font_color");
return (icon_font_color_setting == AUTO_COLOR && ((base_color.r + base_color.g + base_color.b) / 3.0) < 0.5) || icon_font_color_setting == LIGHT_COLOR;
return (icon_font_color_setting == AUTO_COLOR && base_color.get_luminance() < 0.5) || icon_font_color_setting == LIGHT_COLOR;
}
void EditorSettings::list_text_editor_themes() {

4
editor/plugins/editor_preview_plugins.cpp
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@ -851,7 +851,9 @@ Ref<Texture2D> EditorFontPreviewPlugin::generate_from_path(const String &p_path,
Ref<Font> font = sampled_font;
font->draw_string(canvas_item, pos, sample, HORIZONTAL_ALIGNMENT_LEFT, -1.f, 50, Color(1, 1, 1));
const Color c = GLOBAL_GET("rendering/environment/defaults/default_clear_color");
const float fg = c.get_luminance() < 0.5 ? 1.0 : 0.0;
font->draw_string(canvas_item, pos, sample, HORIZONTAL_ALIGNMENT_LEFT, -1.f, 50, Color(fg, fg, fg));
RS::get_singleton()->connect(SNAME("frame_pre_draw"), callable_mp(const_cast<EditorFontPreviewPlugin *>(this), &EditorFontPreviewPlugin::_generate_frame_started), Vector<Variant>(), Object::CONNECT_ONESHOT);