Version: 3.1.3
wxSVGBitmapHandler Class Referenceabstract

#include <wx/dcsvg.h>

+ Inheritance diagram for wxSVGBitmapHandler:

Detailed Description

Abstract base class for handling bitmaps inside a wxSVGFileDC.

To use it you need to derive a new class from it and override ProcessBitmap() to generate a properly a formed SVG image element (see http://www.w3.org/TR/SVG/struct.html#ImageElement).

Two example bitmap handlers are provided in wx/dcsvg.h. The first (default) handler will create PNG files in the same folder as the SVG file and uses links to them in the SVG. The second handler (wxSVGBitmapEmbedHandler) will embed the PNG image in the SVG file using base 64 encoding.

The handler can be changed by calling wxSVGFileDC::SetBitmapHandler().

Library:  wxCore
Category:  Device Contexts
Since
3.1.0

Public Member Functions

virtual bool ProcessBitmap (const wxBitmap &bitmap, wxCoord x, wxCoord y, wxOutputStream &stream) const =0
 Writes the bitmap representation as SVG to the given stream. More...
 

Member Function Documentation

virtual bool wxSVGBitmapHandler::ProcessBitmap ( const wxBitmap bitmap,
wxCoord  x,
wxCoord  y,
wxOutputStream stream 
) const
pure virtual

Writes the bitmap representation as SVG to the given stream.

The XML generated by this function will be inserted into the SVG file inline with the XML generated by the main wxSVGFileDC class so it is important that the XML is properly formed.

Parameters
bitmapA valid bitmap to add to SVG.
xHorizontal position of the bitmap.
yVertical position of the bitmap.
streamThe stream to write SVG contents to.

Implemented in wxSVGBitmapFileHandler, and wxSVGBitmapEmbedHandler.