Structure tree (first part)

PdfForQtLib/sources/pdfstructuretree.h

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+//    Copyright (C) 2019-2020 Jakub Melka
+//
+//    This file is part of PdfForQt.
+//
+//    PdfForQt is free software: you can redistribute it and/or modify
+//    it under the terms of the GNU Lesser General Public License as published by
+//    the Free Software Foundation, either version 3 of the License, or
+//    (at your option) any later version.
+//
+//    PdfForQt is distributed in the hope that it will be useful,
+//    but WITHOUT ANY WARRANTY; without even the implied warranty of
+//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+//    GNU Lesser General Public License for more details.
+//
+//    You should have received a copy of the GNU Lesser General Public License
+//    along with PDFForQt.  If not, see <https://www.gnu.org/licenses/>.
+
+#ifndef PDFSTRUCTURETREE_H
+#define PDFSTRUCTURETREE_H
+
+#include "pdfobject.h"
+
+namespace pdf
+{
+
+struct PDFStructureTreeAttributeDefinition;
+
+class PDFStructureTreeAttribute
+{
+public:
+
+    enum class Owner
+    {
+        /// Defined for user owner
+        User,
+
+        Layout,
+        List,
+        PrintField,
+        Table,
+
+        Artifact,
+
+        XML_1_00,
+        HTML_3_20,
+        HTML_4_01,
+        HTML_5_00,
+        OEB_1_00,
+        RTF_1_05,
+        CSS_1_00,
+        CSS_2_00,
+        CSS_3_00,
+        RDFa_1_10,
+        ARIA_1_1,
+    };
+
+    enum Attribute
+    {
+        User,
+
+        // Standard layout attributes
+        Placement,
+        WritingMode,
+        BackgroundColor,
+        BorderColor,
+        BorderStyle,
+        BorderThickness,
+        Color,
+        Padding,
+
+        // Block element attributes
+        SpaceBefore,
+        SpaceAfter,
+        StartIndent,
+        EndIndent,
+        TextIndent,
+        TextAlign,
+        BBox,
+        Width,
+        Height,
+        BlockAlign,
+        InlineAlign,
+        TBorderStyle,
+        TPadding,
+        LineHeight,
+        BaselineShift,
+        TextDecorationType,
+        TextDecorationColor,
+        TextDecorationThickness,
+        ColumnCount,
+        ColumnWidths,
+        ColumnGap,
+        GlyphOrientationVertical,
+        RubyAlign,
+        RubyPosition,
+
+        // List attributes
+        ListNumbering,
+        ContinuedList,
+        ContinuedFrom,
+
+        // PrintField attributes
+        Role,
+        Checked,
+        Desc,
+
+        // Table attributes
+        RowSpan,
+        ColSpan,
+        Headers,
+        Scope,
+        Short,
+
+        // Artifact attributes
+        Type,
+        Subtype,
+
+        LastAttribute
+    };
+
+private:
+};
+
+class PDFStructureTree
+{
+public:
+    PDFStructureTree();
+};
+
+}   // namespace pdf
+
+#endif // PDFSTRUCTURETREE_H