AudioBook Plugin: Move selection up/down

Pdf4QtLib/sources/pdfdocumenttextflow.cpp

@@ -905,6 +905,66 @@ void PDFDocumentTextFlowEditor::restoreOriginalTexts()
     }
 }
 
+void PDFDocumentTextFlowEditor::moveSelectionUp()
+{
+    size_t originalSize = m_editedTextFlow.size();
+    size_t firstSelectedIndex = originalSize;
+
+    EditedItems selectedItems;
+    for (auto it = m_editedTextFlow.begin(); it != m_editedTextFlow.end();)
+    {
+        if (it->editedItemFlags.testFlag(Selected))
+        {
+            if (firstSelectedIndex == originalSize)
+            {
+                firstSelectedIndex = std::distance(m_editedTextFlow.begin(), it);
+            }
+
+            selectedItems.emplace_back(std::move(*it));
+            it = m_editedTextFlow.erase(it);
+        }
+        else
+        {
+            ++it;
+        }
+    }
+
+    if (firstSelectedIndex > 0)
+    {
+        --firstSelectedIndex;
+    }
+
+    m_editedTextFlow.insert(std::next(m_editedTextFlow.begin(), firstSelectedIndex), std::make_move_iterator(selectedItems.begin()), std::make_move_iterator(selectedItems.end()));
+}
+
+void PDFDocumentTextFlowEditor::moveSelectionDown()
+{
+    size_t originalSize = m_editedTextFlow.size();
+    size_t lastSelectedIndex = originalSize;
+
+    EditedItems selectedItems;
+    for (auto it = m_editedTextFlow.begin(); it != m_editedTextFlow.end();)
+    {
+        if (it->editedItemFlags.testFlag(Selected))
+        {
+            lastSelectedIndex = std::distance(m_editedTextFlow.begin(), it);
+            selectedItems.emplace_back(std::move(*it));
+            it = m_editedTextFlow.erase(it);
+        }
+        else
+        {
+            ++it;
+        }
+    }
+
+    if (lastSelectedIndex < m_editedTextFlow.size())
+    {
+        ++lastSelectedIndex;
+    }
+
+    m_editedTextFlow.insert(std::next(m_editedTextFlow.begin(), lastSelectedIndex), std::make_move_iterator(selectedItems.begin()), std::make_move_iterator(selectedItems.end()));
+}
+
 PDFDocumentTextFlowEditor::PageIndicesMappingRange PDFDocumentTextFlowEditor::getItemsForPageIndex(PDFInteger pageIndex) const
 {
     auto comparator = [](const auto& l, const auto& r)

Pdf4QtLib/sources/pdfdocumenttextflow.h

@@ -244,6 +244,16 @@ public:
     /// Restores original texts in selected items
     void restoreOriginalTexts();
 
+    /// Move all selected items one position up. If multiple non-consecutive
+    /// items are selected, they are grouped into one group and move one item
+    /// up above first selected item.
+    void moveSelectionUp();
+
+    /// Move all selected items one position down. If multiple non-consecutive
+    /// items are selected, they are grouped into one group and move one item
+    /// down above first selected item.
+    void moveSelectionDown();
+
     /// Returns item indices for a given page index, i.e.
     /// index of items which are lying on a page.
     /// \param pageIndex Page index

Pdf4QtLib/sources/pdfdocumenttextfloweditormodel.cpp

@@ -309,6 +309,28 @@ void PDFDocumentTextFlowEditorModel::restoreOriginalTexts()
     emit dataChanged(index(0, 0), index(rowCount(QModelIndex()) - 1, ColumnLast));
 }
 
+void PDFDocumentTextFlowEditorModel::moveSelectionUp()
+{
+    if (!m_editor || m_editor->isEmpty())
+    {
+        return;
+    }
+
+    m_editor->moveSelectionUp();
+    notifyDataChanged();
+}
+
+void PDFDocumentTextFlowEditorModel::moveSelectionDown()
+{
+    if (!m_editor || m_editor->isEmpty())
+    {
+        return;
+    }
+
+    m_editor->moveSelectionDown();
+    notifyDataChanged();
+}
+
 void PDFDocumentTextFlowEditorModel::notifyDataChanged()
 {
     if (!m_editor || m_editor->isEmpty())

Pdf4QtLib/sources/pdfdocumenttextfloweditormodel.h

@@ -69,6 +69,8 @@ public:
     void selectByRegularExpression(const QRegularExpression& expression);
     void selectByPageIndices(const pdf::PDFClosedIntervalSet& indices);
     void restoreOriginalTexts();
+    void moveSelectionUp();
+    void moveSelectionDown();
     void notifyDataChanged();
 
 private: