Add font format support for cell data

examples/examples.pro

@@ -1,3 +1,6 @@
 TEMPLATE = subdirs
 SUBDIRS = hello
 
+SUBDIRS += \
+    style
+

examples/hello/main.cpp

@@ -18,6 +18,8 @@ int main()
     sheet->write("D7", true);
 
     QXlsx::Worksheet *sheet2 = workbook.addWorksheet();
+    //Rows and columns are zero indexed.
+    //The first cell in a worksheet, "A1", is (0, 0).
     sheet2->write(0, 0, "First");
     sheet2->write(1, 0, "Second");
     sheet2->write(2, 0, "Third");

examples/style/main.cpp

@@ -0,0 +1,32 @@
+#include <QtCore>
+#include "xlsxworkbook.h"
+#include "xlsxworksheet.h"
+#include "xlsxformat.h"
+
+#ifdef Q_OS_MAC
+#  define DATA_PATH "../../../"
+#else
+#  define DATA_PATH "./"
+#endif
+
+int main()
+{
+    QXlsx::Workbook workbook;
+    QXlsx::Worksheet *sheet = workbook.addWorksheet();
+
+    QXlsx::Format *format1 = workbook.addFormat();
+    format1->setFontColor(QColor(Qt::red));
+    format1->setFontSize(15);
+    sheet->write("A1", "Hello Qt!", format1);
+    sheet->write("B3", 12345, format1);
+
+    QXlsx::Format *format2 = workbook.addFormat();
+    format2->setFontBold(true);
+    format2->setFontUnderline(QXlsx::Format::FontUnderlineDouble);
+    sheet->write("C5", "=44+33", format2);
+    sheet->write("D7", true, format2);
+
+    workbook.save(DATA_PATH"TestStyle.xlsx");
+    workbook.save(DATA_PATH"TestStyle.zip");
+    return 0;
+}

examples/style/style.pro

@@ -0,0 +1,5 @@
+TARGET = style
+
+include(../../src/qtxlsxwriter.pri)
+
+SOURCES += main.cpp