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LibGUI: Support multiple layers of TextDocument spans

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TextDocument::set_spans() now also takes a "span collection index"
argument.

TextDocument keeps a map between a span collection index and its spans.
It merges the spans from all collections into a single set of spans
whenever set_spans() is called.

This allows us to style a document with multiple layers of spans, where
as previously we only supported a single layer of spans that was set
from the SyntaxHighlighter.
This commit is contained in:
Itamar
2022-03-29 16:31:26 +03:00
committed by Andreas Kling
parent b75ed992a6
commit ab0b4f46f7
Notes: sideshowbarker 2024-07-17 20:33:50 +09:00 
Author: https://github.com/itamar8910
Commit: https://github.com/SerenityOS/serenity/commit/ab0b4f46f7
Pull-request: https://github.com/SerenityOS/serenity/pull/13335
Reviewed-by: https://github.com/alimpfard ✅
5 changed files with 107 additions and 2 deletions
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Userland/Libraries/LibSyntax/HighlighterClient.h
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@@ -33,6 +33,8 @@ public:
String get_text() const { return highlighter_did_request_text(); }
GUI::TextDocument& get_document() { return highlighter_did_request_document(); }
GUI::TextPosition get_cursor() const { return highlighter_did_request_cursor(); }
static constexpr auto span_collection_index = 0;
};
}