Spreadsheet: issue 0002957: spreadsheet direct printing

src/Mod/Spreadsheet/Gui/SheetTableView.cpp

@@ -30,7 +30,9 @@
 # include <QMenu>
 # include <QMessageBox>
 # include <QMimeData>
+# include <QTextStream>
 #endif
+# include <QTextTableCell>
 
 #include <App/Application.h>
 #include <App/AutoTransaction.h>
@@ -887,16 +889,18 @@ void SheetTableView::edit ( const QModelIndex & index )
     QTableView::edit(index);
 }
 
-void SheetTableView::contextMenuEvent(QContextMenuEvent *) {
+void SheetTableView::contextMenuEvent(QContextMenuEvent *)
+{
     const QMimeData* mimeData = QApplication::clipboard()->mimeData();
-    if(!selectionModel()->hasSelection()) {
+    if (!selectionModel()->hasSelection()) {
         actionCut->setEnabled(false);
         actionCopy->setEnabled(false);
         actionDel->setEnabled(false);
         actionPaste->setEnabled(false);
         actionSplit->setEnabled(false);
         actionMerge->setEnabled(false);
-    }else{
+    }
+    else {
         actionPaste->setEnabled(mimeData && (mimeData->hasText() || mimeData->hasText()));
         actionCut->setEnabled(true);
         actionCopy->setEnabled(true);
@@ -908,4 +912,66 @@ void SheetTableView::contextMenuEvent(QContextMenuEvent *) {
     contextMenu->exec(QCursor::pos());
 }
 
+QString SheetTableView::toHtml() const
+{
+    std::set<App::CellAddress> cells = sheet->getCells()->getUsedCells();
+    int rowCount = 1;
+    int colCount = 1;
+    for (const auto& it : cells) {
+        rowCount = std::max(rowCount, it.row());
+        colCount = std::max(colCount, it.col());
+    }
+
+    std::unique_ptr<QTextDocument> doc(new QTextDocument);
+    doc->setDocumentMargin(10);
+    QTextCursor cursor(doc.get());
+
+    cursor.movePosition(QTextCursor::Start);
+
+    QTextTableFormat tableFormat;
+    tableFormat.setCellSpacing(0.0);
+    tableFormat.setCellPadding(2.0);
+
+    QTextCharFormat boldFormat;
+    QFont boldFont = boldFormat.font();
+    boldFont.setBold(true);
+    boldFormat.setFont(boldFont);
+
+    QColor bgColor;
+    bgColor.setNamedColor(QLatin1String("#f0f0f0"));
+    QTextCharFormat bgFormat;
+    bgFormat.setBackground(QBrush(bgColor));
+
+    QTextTable *table = cursor.insertTable(rowCount + 2, colCount + 2, tableFormat);
+    for (int row = 0; row < rowCount + 1; row++) {
+        QTextTableCell headerCell = table->cellAt(row+1, 0);
+        headerCell.setFormat(bgFormat);
+        QTextCursor headerCellCursor = headerCell.firstCursorPosition();
+        QString data = model()->headerData(row, Qt::Vertical).toString();
+        headerCellCursor.insertText(data, boldFormat);
+    }
+    for (int col = 0; col < colCount + 1; col++) {
+        QTextTableCell headerCell = table->cellAt(0, col+1);
+        headerCell.setFormat(bgFormat);
+        QTextCursor headerCellCursor = headerCell.firstCursorPosition();
+        QTextBlockFormat blockFormat = headerCellCursor.blockFormat();
+        blockFormat.setAlignment(Qt::AlignHCenter);
+        headerCellCursor.setBlockFormat(blockFormat);
+        QString data = model()->headerData(col, Qt::Horizontal).toString();
+        headerCellCursor.insertText(data, boldFormat);
+    }
+
+    for (const auto& it : cells) {
+        QTextCharFormat cellFormat;
+        QTextTableCell cell = table->cellAt(it.row() + 1, it.col() + 1);
+        QTextCursor cellCursor = cell.firstCursorPosition();
+        QString data = model()->data(model()->index(it.row(), it.col())).toString().simplified();
+        cellCursor.insertText(data, cellFormat);
+    }
+
+    cursor.movePosition(QTextCursor::End);
+    cursor.insertBlock();
+    return doc->toHtml();
+}
+
 #include "moc_SheetTableView.cpp"

src/Mod/Spreadsheet/Gui/SheetTableView.h

@@ -58,6 +58,7 @@ public:
     void edit(const QModelIndex &index);
     void setSheet(Spreadsheet::Sheet *_sheet);
     std::vector<App::Range> selectedRanges() const;
+    QString toHtml() const;
 
 public Q_SLOTS:
     void mergeCells();

src/Mod/Spreadsheet/Gui/SpreadsheetView.cpp

@@ -26,10 +26,14 @@
 # include <QApplication>
 # include <QMenu>
 # include <QMouseEvent>
+# include <QPrinter>
+# include <QPrintDialog>
+# include <QPrintPreviewDialog>
 # include <QSlider>
 # include <QStatusBar>
 # include <QToolBar>
 # include <QTableWidgetItem>
+# include <QTextDocument>
 # include <QMessageBox>
 # include <QPalette>
 # include <cmath>
@@ -46,6 +50,7 @@
 #include <Gui/CommandT.h>
 #include <Gui/Document.h>
 #include <Gui/ExpressionCompleter.h>
+#include <Gui/FileDialog.h>
 #include <LineEdit.h>
 #include <Mod/Spreadsheet/App/Sheet.h>
 #include <Mod/Spreadsheet/App/SheetPy.h>
@@ -191,22 +196,75 @@ bool SheetView::onHasMsg(const char *pMsg) const
         App::Document* doc = getAppDocument();
         return doc && doc->getAvailableUndos() > 0;
     }
-    else if (strcmp("Redo",pMsg) == 0) {
+    if (strcmp("Redo",pMsg) == 0) {
         App::Document* doc = getAppDocument();
         return doc && doc->getAvailableRedos() > 0;
     }
-    else if  (strcmp("Save",pMsg) == 0)
+    if  (strcmp("Save",pMsg) == 0)
         return true;
-    else if (strcmp("SaveAs",pMsg) == 0)
+    if (strcmp("SaveAs",pMsg) == 0)
         return true;
-    else if (strcmp("Cut",pMsg) == 0)
+    if (strcmp("Cut",pMsg) == 0)
         return true;
-    else if (strcmp("Copy",pMsg) == 0)
+    if (strcmp("Copy",pMsg) == 0)
         return true;
-    else if (strcmp("Paste",pMsg) == 0)
+    if (strcmp("Paste",pMsg) == 0)
         return true;
-    else
-        return false;
+    if (strcmp(pMsg, "Print") == 0)
+        return true;
+    if (strcmp(pMsg, "PrintPreview") == 0)
+        return true;
+    if (strcmp(pMsg, "PrintPdf") == 0)
+        return true;
+
+    return false;
+}
+
+/**
+ * Shows the printer dialog.
+ */
+void SheetView::print()
+{
+    QPrinter printer(QPrinter::ScreenResolution);
+    printer.setFullPage(true);
+    QPrintDialog dlg(&printer, this);
+    if (dlg.exec() == QDialog::Accepted) {
+        print(&printer);
+    }
+}
+
+void SheetView::printPreview()
+{
+    QPrinter printer(QPrinter::ScreenResolution);
+    QPrintPreviewDialog dlg(&printer, this);
+    connect(&dlg, SIGNAL(paintRequested (QPrinter *)),
+            this, SLOT(print(QPrinter *)));
+    dlg.exec();
+}
+
+void SheetView::print(QPrinter* printer)
+{
+#if 0
+    ui->cells->render(printer);
+#endif
+    std::unique_ptr<QTextDocument> document = std::make_unique<QTextDocument>();
+    document->setHtml(ui->cells->toHtml());
+    document->print(printer);
+}
+
+/**
+ * Prints the document into a Pdf file.
+ */
+void SheetView::printPdf()
+{
+    QString filename = FileDialog::getSaveFileName(this, tr("Export PDF"), QString(),
+        QString::fromLatin1("%1 (*.pdf)").arg(tr("PDF file")));
+    if (!filename.isEmpty()) {
+        QPrinter printer(QPrinter::ScreenResolution);
+        printer.setOutputFormat(QPrinter::PdfFormat);
+        printer.setOutputFileName(filename);
+        print(&printer);
+    }
 }
 
 void SheetView::setCurrentCell(QString str)

src/Mod/Spreadsheet/Gui/SpreadsheetView.h

@@ -66,6 +66,14 @@ public:
     bool onMsg(const char* pMsg,const char** ppReturn);
     bool onHasMsg(const char* pMsg) const;
 
+    /** @name Printing */
+    //@{
+    void print();
+    void printPdf();
+    void printPreview();
+    void print(QPrinter*);
+    //@}
+
     void updateCell(const App::Property * prop);
 
     Spreadsheet::Sheet * getSheet() { return sheet; }