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Generate script resource preview without parsing

This commit is contained in:
Yuri Sizov 2024-01-26 13:03:32 +01:00
parent c848bfc1bb
commit 9c919ea285
4 changed files with 45 additions and 10 deletions
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12
core/object/script_language.cpp
View File

@ -168,6 +168,18 @@ ScriptLanguage *ScriptServer::get_language(int p_idx) {
return _languages[p_idx];
}
ScriptLanguage *ScriptServer::get_language_for_extension(const String &p_extension) {
MutexLock lock(languages_mutex);
for (int i = 0; i < _language_count; i++) {
if (_languages[i] && _languages[i]->get_extension() == p_extension) {
return _languages[i];
}
}
return nullptr;
}
Error ScriptServer::register_language(ScriptLanguage *p_language) {
MutexLock lock(languages_mutex);
ERR_FAIL_NULL_V(p_language, ERR_INVALID_PARAMETER);

1
core/object/script_language.h
View File

@ -75,6 +75,7 @@ public:
static bool is_scripting_enabled();
_FORCE_INLINE_ static int get_language_count() { return _language_count; }
static ScriptLanguage *get_language(int p_idx);
static ScriptLanguage *get_language_for_extension(const String &p_extension);
static Error register_language(ScriptLanguage *p_language);
static Error unregister_language(const ScriptLanguage *p_language);

37
editor/plugins/editor_preview_plugins.cpp
View File

@ -464,6 +464,17 @@ bool EditorScriptPreviewPlugin::handles(const String &p_type) const {
return ClassDB::is_parent_class(p_type, "Script");
}
Ref<Texture2D> EditorScriptPreviewPlugin::generate_from_path(const String &p_path, const Size2 &p_size, Dictionary &p_metadata) const {
Error err;
String code = FileAccess::get_file_as_string(p_path, &err);
if (err != OK) {
return Ref<Texture2D>();
}
ScriptLanguage *lang = ScriptServer::get_language_for_extension(p_path.get_extension());
return _generate_from_source_code(lang, code, p_size, p_metadata);
}
Ref<Texture2D> EditorScriptPreviewPlugin::generate(const Ref<Resource> &p_from, const Size2 &p_size, Dictionary &p_metadata) const {
Ref<Script> scr = p_from;
if (scr.is_null()) {
@ -471,18 +482,24 @@ Ref<Texture2D> EditorScriptPreviewPlugin::generate(const Ref<Resource> &p_from,
}
String code = scr->get_source_code().strip_edges();
if (code.is_empty()) {
return _generate_from_source_code(scr->get_language(), code, p_size, p_metadata);
}
Ref<Texture2D> EditorScriptPreviewPlugin::_generate_from_source_code(const ScriptLanguage *p_language, const String &p_source_code, const Size2 &p_size, Dictionary &p_metadata) const {
if (p_source_code.is_empty()) {
return Ref<Texture2D>();
}
List<String> kwors;
scr->get_language()->get_reserved_words(&kwors);
if (p_language) {
p_language->get_reserved_words(&kwors);
}
HashSet<String> control_flow_keywords;
HashSet<String> keywords;
for (const String &E : kwors) {
if (scr->get_language()->is_control_flow_keyword(E)) {
if (p_language && p_language->is_control_flow_keyword(E)) {
control_flow_keywords.insert(E);
} else {
keywords.insert(E);
@ -505,7 +522,7 @@ Ref<Texture2D> EditorScriptPreviewPlugin::generate(const Ref<Resource> &p_from,
if (bg_color.a == 0) {
bg_color = Color(0, 0, 0, 0);
}
bg_color.a = MAX(bg_color.a, 0.2); // some background
bg_color.a = MAX(bg_color.a, 0.2); // Ensure we have some background, regardless of the text editor setting.
img->fill(bg_color);
@ -519,14 +536,14 @@ Ref<Texture2D> EditorScriptPreviewPlugin::generate(const Ref<Resource> &p_from,
bool in_keyword = false;
bool in_comment = false;
bool in_doc_comment = false;
for (int i = 0; i < code.length(); i++) {
char32_t c = code[i];
for (int i = 0; i < p_source_code.length(); i++) {
char32_t c = p_source_code[i];
if (c > 32) {
if (col < thumbnail_size) {
Color color = text_color;
if (c == '#') {
if (i < code.length() - 1 && code[i + 1] == '#') {
if (i < p_source_code.length() - 1 && p_source_code[i + 1] == '#') {
in_doc_comment = true;
} else {
in_comment = true;
@ -539,17 +556,17 @@ Ref<Texture2D> EditorScriptPreviewPlugin::generate(const Ref<Resource> &p_from,
color = doc_comment_color;
} else {
if (is_symbol(c)) {
//make symbol a little visible
// Make symbol a little visible.
color = symbol_color;
in_control_flow_keyword = false;
in_keyword = false;
} else if (!prev_is_text && is_ascii_identifier_char(c)) {
int pos = i;
while (is_ascii_identifier_char(code[pos])) {
while (is_ascii_identifier_char(p_source_code[pos])) {
pos++;
}
String word = code.substr(i, pos - i);
String word = p_source_code.substr(i, pos - i);
if (control_flow_keywords.has(word)) {
in_control_flow_keyword = true;
} else if (keywords.has(word)) {

5
editor/plugins/editor_preview_plugins.h
View File

@ -34,6 +34,8 @@
#include "core/templates/safe_refcount.h"
#include "editor/editor_resource_preview.h"
class ScriptLanguage;
void post_process_preview(Ref<Image> p_image);
class EditorTexturePreviewPlugin : public EditorResourcePreviewGenerator {
@ -112,9 +114,12 @@ public:
class EditorScriptPreviewPlugin : public EditorResourcePreviewGenerator {
GDCLASS(EditorScriptPreviewPlugin, EditorResourcePreviewGenerator);
Ref<Texture2D> _generate_from_source_code(const ScriptLanguage *p_language, const String &p_source_code, const Size2 &p_size, Dictionary &p_metadata) const;
public:
virtual bool handles(const String &p_type) const override;
virtual Ref<Texture2D> generate(const Ref<Resource> &p_from, const Size2 &p_size, Dictionary &p_metadata) const override;
virtual Ref<Texture2D> generate_from_path(const String &p_path, const Size2 &p_size, Dictionary &p_metadata) const override;
EditorScriptPreviewPlugin();
};