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[Font] Add check for cyclic base font dependencies.

This commit is contained in:
bruvzg 2024-08-02 20:46:39 +03:00
parent 3978628c6c
commit 5c8a8c57be
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GPG Key ID: 7960FCF39844EC38
2 changed files with 26 additions and 6 deletions
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27
scene/resources/font.cpp
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@ -149,6 +149,25 @@ bool Font::_is_cyclic(const Ref<Font> &p_f, int p_depth) const {
return false;
}
bool Font::_is_base_cyclic(const Ref<Font> &p_f, int p_depth) const {
ERR_FAIL_COND_V(p_depth > MAX_FALLBACK_DEPTH, true);
if (p_f.is_null()) {
return false;
}
if (p_f == this) {
return true;
}
Ref<FontVariation> fv = p_f;
if (fv.is_valid()) {
return _is_base_cyclic(fv->get_base_font(), p_depth + 1);
}
Ref<SystemFont> fs = p_f;
if (fs.is_valid()) {
return _is_base_cyclic(fs->get_base_font(), p_depth + 1);
}
return false;
}
void Font::reset_state() {
_invalidate_rids();
}
@ -2910,7 +2929,7 @@ Ref<Font> FontVariation::_get_base_font_or_default() const {
}
Ref<Font> f = theme->get_font(theme_name, E);
if (f == this) {
if (_is_base_cyclic(f, 0)) {
continue;
}
if (f.is_valid()) {
@ -2922,7 +2941,7 @@ Ref<Font> FontVariation::_get_base_font_or_default() const {
}
Ref<Font> f = global_context->get_fallback_theme()->get_font(theme_name, StringName());
if (f != this) {
if (!_is_base_cyclic(f, 0)) {
if (f.is_valid()) {
theme_font = f;
theme_font->connect_changed(callable_mp(reinterpret_cast<Font *>(const_cast<FontVariation *>(this)), &Font::_invalidate_rids), CONNECT_REFERENCE_COUNTED);
@ -3273,7 +3292,7 @@ Ref<Font> SystemFont::_get_base_font_or_default() const {
}
Ref<Font> f = theme->get_font(theme_name, E);
if (f == this) {
if (_is_base_cyclic(f, 0)) {
continue;
}
if (f.is_valid()) {
@ -3285,7 +3304,7 @@ Ref<Font> SystemFont::_get_base_font_or_default() const {
}
Ref<Font> f = global_context->get_fallback_theme()->get_font(theme_name, StringName());
if (f != this) {
if (!_is_base_cyclic(f, 0)) {
if (f.is_valid()) {
theme_font = f;
theme_font->connect_changed(callable_mp(reinterpret_cast<Font *>(const_cast<SystemFont *>(this)), &Font::_invalidate_rids), CONNECT_REFERENCE_COUNTED);

5
scene/resources/font.h
View File

@ -99,8 +99,6 @@ protected:
virtual void _update_rids_fb(const Ref<Font> &p_f, int p_depth) const;
virtual void _update_rids() const;
virtual bool _is_cyclic(const Ref<Font> &p_f, int p_depth) const;
virtual void reset_state() override;
#ifndef DISABLE_DEPRECATED
@ -110,6 +108,8 @@ protected:
#endif
public:
virtual bool _is_cyclic(const Ref<Font> &p_f, int p_depth) const;
virtual bool _is_base_cyclic(const Ref<Font> &p_f, int p_depth) const;
virtual void _invalidate_rids();
static constexpr int DEFAULT_FONT_SIZE = 16;
@ -494,6 +494,7 @@ protected:
virtual void reset_state() override;
public:
virtual Ref<Font> get_base_font() const { return base_font; }
virtual Ref<Font> _get_base_font_or_default() const;
virtual void set_antialiasing(TextServer::FontAntialiasing p_antialiasing);