LibGfx: Move other font-related files to LibGfx/Font/

Userland/Libraries/LibGfx/Font/FontStyleMapping.h

@@ -0,0 +1,80 @@
+/*
+ * Copyright (c) 2020, Andreas Kling <kling@serenityos.org>
+ * Copyright (c) 2021, the SerenityOS developers.
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
+
+#pragma once
+
+#include <AK/StringView.h>
+
+namespace Gfx {
+
+struct FontStyleMapping {
+    constexpr FontStyleMapping(int s, char const* n)
+        : style(s)
+        , name(n)
+    {
+    }
+    int style { 0 };
+    StringView name;
+};
+
+static constexpr FontStyleMapping font_weight_names[] = {
+    { 100, "Thin" },
+    { 200, "Extra Light" },
+    { 300, "Light" },
+    { 400, "Regular" },
+    { 500, "Medium" },
+    { 600, "Semi Bold" },
+    { 700, "Bold" },
+    { 800, "Extra Bold" },
+    { 900, "Black" },
+    { 950, "Extra Black" },
+};
+
+static constexpr FontStyleMapping font_slope_names[] = {
+    { 0, "Regular" },
+    { 1, "Italic" },
+    { 2, "Oblique" },
+    { 3, "Reclined" }
+};
+
+static constexpr StringView weight_to_name(int weight)
+{
+    for (auto& it : font_weight_names) {
+        if (it.style == weight)
+            return it.name;
+    }
+    return {};
+}
+
+static constexpr int name_to_weight(StringView name)
+{
+    for (auto& it : font_weight_names) {
+        if (it.name == name)
+            return it.style;
+    }
+    return {};
+}
+
+static constexpr StringView slope_to_name(int slope)
+{
+    for (auto& it : font_slope_names) {
+        if (it.style == slope)
+            return it.name;
+    }
+    return {};
+}
+
+static constexpr int name_to_slope(StringView name)
+{
+    for (auto& it : font_slope_names) {
+        if (it.name == name)
+            return it.style;
+    }
+    return {};
+}
+
+}