Everywhere: Hoist the Libraries folder to the top-level

Author: https://github.com/trflynn89
Commit: 93712b24bf
Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2256
Reviewed-by: https://github.com/sideshowbarker

Libraries/LibLine/StringMetrics.h

@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2020-2021, the SerenityOS developers.
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <AK/Types.h>
+#include <AK/Vector.h>
+
+namespace Line {
+
+struct StringMetrics {
+    struct MaskedChar {
+        size_t position { 0 };
+        size_t original_length { 0 };
+        size_t masked_length { 0 };
+    };
+    struct LineMetrics {
+        Vector<MaskedChar> masked_chars;
+        size_t length { 0 };
+        size_t visible_length { 0 };
+        Optional<size_t> bit_length { 0 };
+
+        size_t total_length() const { return length; }
+    };
+
+    Vector<LineMetrics> line_metrics;
+    Vector<size_t> grapheme_breaks {};
+    size_t total_length { 0 };
+    size_t max_line_length { 0 };
+
+    size_t lines_with_addition(StringMetrics const& offset, size_t column_width) const;
+    size_t offset_with_addition(StringMetrics const& offset, size_t column_width) const;
+    void reset()
+    {
+        line_metrics.clear();
+        total_length = 0;
+        max_line_length = 0;
+        line_metrics.append({ {}, 0 });
+    }
+};
+
+}