Improve the style picker

src/libneochat/enums/textstyle.h

@@ -0,0 +1,74 @@
+// SPDX-FileCopyrightText: 2025 James Graham <james.h.graham@protonmail.com>
+// SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
+
+#pragma once
+
+#include <QObject>
+#include <QQmlEngine>
+
+using namespace Qt::StringLiterals;
+
+/**
+ * @class TextStyle
+ *
+ * A class with the Style enum for available text styles.
+ */
+class TextStyle : public QObject
+{
+    Q_OBJECT
+    QML_ELEMENT
+    QML_UNCREATABLE("")
+
+public:
+    /**
+     * @brief Enum to define available styles.
+     *
+     * @note The Paragraph and Heading values are intentially fixed to match heading
+     *       level values returned by QTextBlockFormat::headingLevel().
+     *
+     * @sa QTextBlockFormat::headingLevel()
+     */
+    enum Style {
+        Paragraph = 0,
+        Heading1 = 1,
+        Heading2 = 2,
+        Heading3 = 3,
+        Heading4 = 4,
+        Heading5 = 5,
+        Heading6 = 6,
+        Code = 7,
+        Quote = 8,
+    };
+    Q_ENUM(Style);
+
+    /**
+     * @brief Translate the Kind enum value to a human readable string.
+     *
+     * @sa Kind
+     */
+    static QString styleString(Style style)
+    {
+        switch (style) {
+        case Style::Paragraph:
+            return u"Paragraph"_s;
+        case Style::Heading1:
+            return u"Heading 1"_s;
+        case Style::Heading2:
+            return u"Heading 2"_s;
+        case Style::Heading3:
+            return u"Heading 3"_s;
+        case Style::Heading4:
+            return u"Heading 4"_s;
+        case Style::Heading5:
+            return u"Heading 5"_s;
+        case Style::Heading6:
+            return u"Heading 6"_s;
+        case Style::Code:
+            return u"Code"_s;
+        case Style::Quote:
+            return u"\"Quote\""_s;
+        default:
+            return {};
+        }
+    };
+};