Add QDateTime support for QXlsx::Cell

src/xlsx/xlsxcell.cpp

@@ -24,6 +24,11 @@
 ****************************************************************************/
 #include "xlsxcell.h"
 #include "xlsxcell_p.h"
+#include "xlsxformat.h"
+#include "xlsxutility_p.h"
+#include "xlsxworksheet.h"
+#include "xlsxworkbook.h"
+#include <QDateTime>
 
 QT_BEGIN_NAMESPACE_XLSX
 
@@ -44,12 +49,13 @@ CellPrivate::CellPrivate(Cell *p) :
  * \internal
  * Created by Worksheet only.
  */
-Cell::Cell(const QVariant &data, DataType type, Format *format) :
+Cell::Cell(const QVariant &data, DataType type, Format *format, Worksheet *parent) :
     d_ptr(new CellPrivate(this))
 {
     d_ptr->value = data;
     d_ptr->dataType = type;
     d_ptr->format = format;
+    d_ptr->parent = parent;
 }
 
 /*!
@@ -88,4 +94,23 @@ QString Cell::formula() const
     return d->formula;
 }
 
+/*!
+ * Returns whether the value is probably a dateTime or not
+ */
+bool Cell::isDateTime() const
+{
+    Q_D(const Cell);
+    if (d->dataType == Numeric && d->format && d->format->isDateTimeFormat())
+        return true;
+    return false;
+}
+
+QDateTime Cell::dateTime() const
+{
+    Q_D(const Cell);
+    if (!isDateTime())
+        return QDateTime();
+    return datetimeFromNumber(d->value.toDouble(), d->parent->workbook()->isDate1904());
+}
+
 QT_END_NAMESPACE_XLSX

src/xlsx/xlsxcell.h

@@ -54,11 +54,14 @@ public:
     Format * format() const;
     QString formula() const;
 
+    bool isDateTime() const;
+    QDateTime dateTime() const;
+
 private:
     friend class Worksheet;
     friend class WorksheetPrivate;
 
-    Cell(const QVariant &data=QVariant(), DataType type=Blank, Format *format=0);
+    Cell(const QVariant &data=QVariant(), DataType type=Blank, Format *format=0, Worksheet *parent=0);
 
     CellPrivate * const d_ptr;
 };

src/xlsx/xlsxcell_p.h

@@ -39,6 +39,7 @@ public:
     Cell::DataType dataType;
     Format *format;
 
+    Worksheet *parent;
     Cell *q_ptr;
 };
 

src/xlsx/xlsxformat.cpp

@@ -25,6 +25,7 @@
 #include "xlsxformat.h"
 #include "xlsxformat_p.h"
 #include <QDataStream>
+#include <QRegularExpression>
 #include <QDebug>
 
 QT_BEGIN_NAMESPACE_XLSX
@@ -87,6 +88,7 @@ void Format::setNumberFormatIndex(int format)
     Q_D(Format);
     d->dirty = true;
     d->numberData.formatIndex = format;
+    d->numberData._valid = true;
 }
 
 /*!
@@ -102,15 +104,39 @@ QString Format::numberFormat() const
 
 /*!
  * Set number \a format.
+ * http://office.microsoft.com/en-001/excel-help/create-a-custom-number-format-HP010342372.aspx
  */
 void Format::setNumberFormat(const QString &format)
 {
     Q_D(Format);
+    if (format.isEmpty())
+        return;
     d->dirty = true;
     d->numberData.formatString = format;
     d->numberData._valid = false; //formatIndex must be re-generated
 }
 
+/*!
+ * Returns whether the number format is probably a dateTime or not
+ */
+bool Format::isDateTimeFormat() const
+{
+    Q_D(const Format);
+    if (d->numberData._valid && d->numberData.formatString.isEmpty()) {
+        int idx = d->numberData.formatIndex;
+        //Built in date time number index
+        if ((idx >= 15 && idx <= 22) || (idx >= 45 && idx <= 47))
+            return true;
+    } else {
+        //Gauss from the number string
+        QString formatCode = d->numberData.formatString;
+        formatCode.remove(QRegularExpression(QStringLiteral("\\[(Green|White|Blue|Magenta|Yellow|Cyan|Red)\\]")));
+        if (formatCode.contains(QRegularExpression(QStringLiteral("[dmhys]"))))
+            return true;
+    }
+    return false;
+}
+
 /*!
  * \internal
  */

src/xlsx/xlsxformat.h

@@ -31,6 +31,8 @@
 #include <QByteArray>
 #include <QList>
 
+class FormatTest;
+
 QT_BEGIN_NAMESPACE_XLSX
 
 class Styles;
@@ -133,6 +135,7 @@ public:
     void setNumberFormatIndex(int format);
     QString numberFormat() const;
     void setNumberFormat(const QString &format);
+    bool isDateTimeFormat() const;
 
     int fontSize() const;
     void setFontSize(int size);
@@ -210,6 +213,8 @@ private:
     friend class Styles;
     friend class Worksheet;
     friend class WorksheetPrivate;
+    friend class ::FormatTest;
+
     Format();
 
     bool numFmtIndexValid() const;

src/xlsx/xlsxworksheet.cpp

@@ -378,7 +378,7 @@ int Worksheet::writeString(int row, int column, const QString &value, Format *fo
 
     d->sharedStrings()->addSharedString(content);
 
-    d->cellTable[row][column] = QSharedPointer<Cell>(new Cell(content, Cell::String, format));
+    d->cellTable[row][column] = QSharedPointer<Cell>(new Cell(content, Cell::String, format, this));
     d->workbook->styles()->addFormat(format);
     return error;
 }
@@ -396,7 +396,7 @@ int Worksheet::writeInlineString(int row, int column, const QString &value, Form
         error = -2;
     }
 
-    d->cellTable[row][column] = QSharedPointer<Cell>(new Cell(value, Cell::InlineString, format));
+    d->cellTable[row][column] = QSharedPointer<Cell>(new Cell(value, Cell::InlineString, format, this));
     d->workbook->styles()->addFormat(format);
     return error;
 }
@@ -407,7 +407,7 @@ int Worksheet::writeNumeric(int row, int column, double value, Format *format)
     if (d->checkDimensions(row, column))
         return -1;
 
-    d->cellTable[row][column] = QSharedPointer<Cell>(new Cell(value, Cell::Numeric, format));
+    d->cellTable[row][column] = QSharedPointer<Cell>(new Cell(value, Cell::Numeric, format, this));
     d->workbook->styles()->addFormat(format);
     return 0;
 }
@@ -424,7 +424,7 @@ int Worksheet::writeFormula(int row, int column, const QString &content, Format
     if (formula.startsWith(QLatin1String("=")))
         formula.remove(0,1);
 
-    Cell *data = new Cell(result, Cell::Formula, format);
+    Cell *data = new Cell(result, Cell::Formula, format, this);
     data->d_ptr->formula = formula;
     d->cellTable[row][column] = QSharedPointer<Cell>(data);
     d->workbook->styles()->addFormat(format);
@@ -438,7 +438,7 @@ int Worksheet::writeBlank(int row, int column, Format *format)
     if (d->checkDimensions(row, column))
         return -1;
 
-    d->cellTable[row][column] = QSharedPointer<Cell>(new Cell(QVariant(), Cell::Blank, format));
+    d->cellTable[row][column] = QSharedPointer<Cell>(new Cell(QVariant(), Cell::Blank, format, this));
     d->workbook->styles()->addFormat(format);
 
     return 0;
@@ -450,7 +450,7 @@ int Worksheet::writeBool(int row, int column, bool value, Format *format)
     if (d->checkDimensions(row, column))
         return -1;
 
-    d->cellTable[row][column] = QSharedPointer<Cell>(new Cell(value, Cell::Boolean, format));
+    d->cellTable[row][column] = QSharedPointer<Cell>(new Cell(value, Cell::Boolean, format, this));
     d->workbook->styles()->addFormat(format);
 
     return 0;
@@ -469,7 +469,7 @@ int Worksheet::writeDateTime(int row, int column, const QDateTime &dt, Format *f
 
     double value = datetimeToNumber(dt, d->workbook->isDate1904());
 
-    d->cellTable[row][column] = QSharedPointer<Cell>(new Cell(value, Cell::Numeric, format));
+    d->cellTable[row][column] = QSharedPointer<Cell>(new Cell(value, Cell::Numeric, format, this));
     d->workbook->styles()->addFormat(format);
 
     return 0;
@@ -517,7 +517,7 @@ int Worksheet::writeHyperlink(int row, int column, const QUrl &url, Format *form
 
     //Write the hyperlink string as normal string.
     d->sharedStrings()->addSharedString(displayString);
-    d->cellTable[row][column] = QSharedPointer<Cell>(new Cell(displayString, Cell::String, format));
+    d->cellTable[row][column] = QSharedPointer<Cell>(new Cell(displayString, Cell::String, format, this));
     d->workbook->styles()->addFormat(format);
 
     //Store the hyperlink data in a separate table
@@ -1124,6 +1124,7 @@ QSharedPointer<Cell> WorksheetPrivate::readNumericCellData(XmlStreamReader &read
 
 void WorksheetPrivate::readSheetData(XmlStreamReader &reader)
 {
+    Q_Q(Worksheet);
     Q_ASSERT(reader.name() == QLatin1String("sheetData"));
 
     while(!(reader.name() == QLatin1String("sheetData") && reader.tokenType() == QXmlStreamReader::EndElement)) {
@@ -1162,6 +1163,8 @@ void WorksheetPrivate::readSheetData(XmlStreamReader &reader)
                 if (attributes.hasAttribute(QLatin1String("s"))) {
                     int idx = attributes.value(QLatin1String("s")).toInt();
                     format = workbook->styles()->xfFormat(idx);
+                    if (!format)
+                        qDebug()<<"Invalid style index: "<<idx;
                 }
 
                 if (attributes.hasAttribute(QLatin1String("t"))) {
@@ -1174,7 +1177,7 @@ void WorksheetPrivate::readSheetData(XmlStreamReader &reader)
                                 int sst_idx = reader.readElementText().toInt();
                                 sharedStrings()->incRefByStringIndex(sst_idx);
                                 QString value = sharedStrings()->getSharedString(sst_idx);
-                                QSharedPointer<Cell> data(new Cell(value ,Cell::String, format));
+                                QSharedPointer<Cell> data(new Cell(value ,Cell::String, format, q));
                                 cellTable[pos.x()][pos.y()] = QSharedPointer<Cell>(data);
                             }
                         }
@@ -1185,7 +1188,7 @@ void WorksheetPrivate::readSheetData(XmlStreamReader &reader)
                             if (reader.tokenType() == QXmlStreamReader::StartElement) {
                                 if (reader.name() == QLatin1String("t")) {
                                     QString value = reader.readElementText();
-                                    QSharedPointer<Cell> data(new Cell(value, Cell::InlineString, format));
+                                    QSharedPointer<Cell> data(new Cell(value, Cell::InlineString, format, q));
                                     cellTable[pos.x()][pos.y()] = data;
                                 }
                             }
@@ -1195,13 +1198,14 @@ void WorksheetPrivate::readSheetData(XmlStreamReader &reader)
                         reader.readNextStartElement();
                         if (reader.name() == QLatin1String("v")) {
                             QString value = reader.readElementText();
-                            QSharedPointer<Cell> data(new Cell(value.toInt() ? true : false, Cell::Boolean, format));
+                            QSharedPointer<Cell> data(new Cell(value.toInt() ? true : false, Cell::Boolean, format, q));
                             cellTable[pos.x()][pos.y()] = data;
                         }
                     } else if (type == QLatin1String("str")) {
                         //formula type
                         QSharedPointer<Cell> data = readNumericCellData(reader);
                         data->d_ptr->format = format;
+                        data->d_ptr->parent = q;
                         cellTable[pos.x()][pos.y()] = data;
                     } else if (type == QLatin1String("e")) {
                         //error type, such as #DIV/0! #NULL! #REF! etc
@@ -1215,20 +1219,23 @@ void WorksheetPrivate::readSheetData(XmlStreamReader &reader)
                                     f_str = reader.readElementText();
                             }
                         }
-                        QSharedPointer<Cell> data(new Cell(v_str, Cell::Error, format));
+                        QSharedPointer<Cell> data(new Cell(v_str, Cell::Error, format, q));
                         if (!f_str.isEmpty())
                             data->d_ptr->formula = f_str;
                         cellTable[pos.x()][pos.y()] = data;
                     } else if (type == QLatin1String("n")) {
                         QSharedPointer<Cell> data = readNumericCellData(reader);
                         data->d_ptr->format = format;
+                        data->d_ptr->parent = q;
                         cellTable[pos.x()][pos.y()] = data;
                     }
                 } else {
                     //default is "n"
                     QSharedPointer<Cell> data = readNumericCellData(reader);
                     data->d_ptr->format = format;
-                    cellTable[pos.x()][pos.y()] = data;                }
+                    data->d_ptr->parent = q;
+                    cellTable[pos.x()][pos.y()] = data;
+                }
             }
         }
     }
@@ -1364,4 +1371,13 @@ SharedStrings *WorksheetPrivate::sharedStrings() const
     return workbook->sharedStrings();
 }
 
+/*!
+ * Return the workbook
+ */
+Workbook *Worksheet::workbook() const
+{
+    Q_D(const Worksheet);
+    return d->workbook;
+}
+
 QT_END_NAMESPACE_XLSX

src/xlsx/xlsxworksheet.h

@@ -80,6 +80,7 @@ public:
     QString sheetName() const;
     void setSheetName(const QString &sheetName);
 
+    Workbook *workbook() const;
     ~Worksheet();
 private:
     friend class Package;