Add a 'Stamp' widget.

Place one or multiple stamps on scanned pages in defined locations.

A stamp is understood here as
 - a transparent text in a transparent frame with no borders
 - an opaque text on an opaque background with no borders.

Stamp parameters:
 - text
 - font
 - foreground colour
 - background colour
 - angle of rotation
 - transparency.

Locations:
 - centre
 - cardinal directions
 - inter-cardinal directions.

Resources/InsaneWidget/PixelToImageWriter.h

@@ -10,19 +10,26 @@
 #ifndef PIXELTOIMAGEWRITER_H
 #define PIXELTOIMAGEWRITER_H
 
-#include "Common.h"
+#include "DefsInsaneWidget.h"
 #include <string>
+#include <vector>
 #include <wx/wx.h>
 
+struct StampDescriptor;
+
 /**
  * Create an image file from a raw scanned file.\n
+ * Optionally,\n
+ *  - use an wxImage object from the application\n
+ *  - blend a stamp image on the converted image.\n
  */
 class PixelToImageWriter
 {
+  DECLARE_DYNAMIC_CLASS( PixelToImageWriter )
 public:
   static bool Convert(const std::string& pixelFilePath,
-            int imageWidth, int imageHeight, int outputFormat = PNG,
-            wxImage * image = nullptr);
+            int imageWidth, int imageHeight, std::vector<StampDescriptor*> * descriptors,
+            int outputFormat = PNG, wxImage * image = nullptr);
 };
 
 #endif // PIXELTOIMAGEWRITER_H