DocPage Organizer: page rotation

Pdf4QtDocPageOrganizer/mainwindow.cpp

@@ -451,7 +451,13 @@ void MainWindow::performOperation(Operation operation)
         }
 
         case Operation::RotateLeft:
+            m_model->rotateLeft(ui->documentItemsView->selectionModel()->selection().indexes());
+            break;
+
         case Operation::RotateRight:
+            m_model->rotateRight(ui->documentItemsView->selectionModel()->selection().indexes());
+            break;
+
         case Operation::ReplaceSelection:
             Q_ASSERT(false);
             break;

Pdf4QtDocPageOrganizer/pageitemdelegate.cpp

@@ -58,7 +58,8 @@ void PageItemDelegate::paint(QPainter* painter, const QStyleOptionViewItem& opti
     if (!item->groups.empty())
     {
         const PageGroupItem::GroupItem& groupItem = item->groups.front();
-        QSize pageImageSize = groupItem.rotatedPageDimensionsMM.scaled(pageBoundingRect.size(), Qt::KeepAspectRatio).toSize();
+        QSizeF rotatedPageSize = pdf::PDFPage::getRotatedBox(QRectF(QPointF(0, 0), groupItem.rotatedPageDimensionsMM), groupItem.pageAdditionalRotation).size();
+        QSize pageImageSize = rotatedPageSize.scaled(pageBoundingRect.size(), Qt::KeepAspectRatio).toSize();
         QRect pageImageRect(pageBoundingRect.topLeft() + QPoint((pageBoundingRect.width() - pageImageSize.width()) / 2, (pageBoundingRect.height() - pageImageSize.height()) / 2), pageImageSize);
 
         painter->setPen(QPen(Qt::black));

Pdf4QtDocPageOrganizer/pageitemmodel.cpp

@@ -344,6 +344,60 @@ void PageItemModel::removeSelection(const QModelIndexList& list)
     endResetModel();
 }
 
+void PageItemModel::rotateLeft(const QModelIndexList& list)
+{
+    if (list.isEmpty())
+    {
+        return;
+    }
+
+    int rowMin = list.front().row();
+    int rowMax = list.front().row();
+
+    for (const QModelIndex& index : list)
+    {
+        if (PageGroupItem* item = getItem(index))
+        {
+            item->rotateLeft();
+        }
+
+        rowMin = qMin(rowMin, index.row());
+        rowMax = qMax(rowMax, index.row());
+    }
+
+    rowMin = qMax(rowMin, 0);
+    rowMax = qMin(rowMax, rowCount(QModelIndex()) - 1);
+
+    emit dataChanged(index(rowMin, 0, QModelIndex()), index(rowMax, 0, QModelIndex()));
+}
+
+void PageItemModel::rotateRight(const QModelIndexList& list)
+{
+    if (list.isEmpty())
+    {
+        return;
+    }
+
+    int rowMin = list.front().row();
+    int rowMax = list.front().row();
+
+    for (const QModelIndex& index : list)
+    {
+        if (PageGroupItem* item = getItem(index))
+        {
+            item->rotateRight();
+        }
+
+        rowMin = qMin(rowMin, index.row());
+        rowMax = qMax(rowMax, index.row());
+    }
+
+    rowMin = qMax(rowMin, 0);
+    rowMax = qMin(rowMax, rowCount(QModelIndex()) - 1);
+
+    emit dataChanged(index(rowMin, 0, QModelIndex()), index(rowMax, 0, QModelIndex()));
+}
+
 QItemSelection PageItemModel::getSelectionImpl(std::function<bool (const PageGroupItem::GroupItem&)> filter) const
 {
     QItemSelection result;
@@ -463,6 +517,22 @@ std::set<int> PageGroupItem::getDocumentIndices() const
     return result;
 }
 
+void PageGroupItem::rotateLeft()
+{
+    for (auto& groupItem : groups)
+    {
+        groupItem.pageAdditionalRotation = pdf::getPageRotationRotatedLeft(groupItem.pageAdditionalRotation);
+    }
+}
+
+void PageGroupItem::rotateRight()
+{
+    for (auto& groupItem : groups)
+    {
+        groupItem.pageAdditionalRotation = pdf::getPageRotationRotatedRight(groupItem.pageAdditionalRotation);
+    }
+}
+
 QStringList PageItemModel::mimeTypes() const
 {
     return { getMimeDataType() };

Pdf4QtDocPageOrganizer/pageitemmodel.h

@@ -39,6 +39,7 @@ struct PageGroupItem
         int documentIndex = 0;
         pdf::PDFInteger pageIndex;
         QSizeF rotatedPageDimensionsMM;
+        pdf::PageRotation pageAdditionalRotation = pdf::PageRotation::None;
     };
 
     std::vector<GroupItem> groups;
@@ -48,6 +49,9 @@ struct PageGroupItem
     bool isGrouped() const { return groups.size() > 1; }
 
     std::set<int> getDocumentIndices() const;
+
+    void rotateLeft();
+    void rotateRight();
 };
 
 struct DocumentItem
@@ -119,6 +123,9 @@ public:
     QModelIndexList cloneSelection(const QModelIndexList& list);
     void removeSelection(const QModelIndexList& list);
 
+    void rotateLeft(const QModelIndexList& list);
+    void rotateRight(const QModelIndexList& list);
+
     static QString getMimeDataType() { return QLatin1String("application/pagemodel.PDF4QtDocPageOrganizer"); }
 
 private: