#include <gr_UnixImage.h>

Inheritance diagram for GR_UnixImage:

Public Member Functions
	GR_UnixImage (const char *pszName)
	GR_UnixImage (const char pszName, GdkPixbuf pPixbif)
	GR_UnixImage (const char *pszName, GRType imageType)
virtual	~GR_UnixImage ()
virtual bool	convertToBuffer (UT_ConstByteBufPtr &ppBB) const
virtual bool	convertFromBuffer (const UT_ConstByteBufPtr &pBB, const std::string &mimetype, UT_sint32 iDisplayWidth, UT_sint32 iDisplayHeight)
bool	saveToPNG (const char *szFile)
virtual bool	hasAlpha (void) const
virtual UT_sint32	rowStride (void) const
virtual GR_Image::GRType	getType (void) const
GdkPixbuf *	getData (void) const
void	setData (GdkPixbuf *data)
virtual void	scaleImageTo (GR_Graphics *pG, const UT_Rect &rec)
virtual bool	isTransparentAt (UT_sint32 x, UT_sint32 y)
void	scale (UT_sint32 iDisplayWidth, UT_sint32 iDisplayHeight)
virtual void	cairoSetSource (cairo_t *)
Protected Member Functions
virtual GR_UnixImage *	makeSubimage (const std::string &n, UT_sint32 x, UT_sint32 y, UT_sint32 w, UT_sint32 h) const
Private Attributes
GdkPixbuf *	m_image
GR_Image::GRType	m_ImageType

Constructor & Destructor Documentation

GR_UnixImage::GR_UnixImage ( const char * szName )

From Martin. I spent a LOT of time in class tracking down terrible Memory leaks because the only way to delete a pixbuf from memory is to unref an object of reference count 1. Unfortunately I discovered from experience that some operations appear to leave reference count in an undefined state.

So a note to future hackers in this class. Please keep a close eye on the reference count on the GdkPixbuf's and keep the liberal asserts I've placed.

References m_ImageType, and GR_Image::setName().

Referenced by GR_RSVGVectorImage::renderToSurface().

GR_UnixImage::GR_UnixImage	(	const char *	pszName,
		GdkPixbuf *	pPixbif
	)

References m_image, m_ImageType, GR_Image::setDisplaySize(), and GR_Image::setName().

GR_UnixImage::GR_UnixImage	(	const char *	pszName,
		GR_Image::GRType	imageType
	)

References m_ImageType, and GR_Image::setName().

GR_UnixImage::~GR_UnixImage ( ) [virtual]

References m_image, and UT_ASSERT.

Member Function Documentation

void GR_UnixImage::cairoSetSource ( cairo_t * cr ) [virtual]

Implements GR_CairoRasterImage.

Reimplemented in GR_UnixCroppedImage.

References GR_Image::getDisplayHeight(), GR_Image::getDisplayWidth(), m_image, and UT_return_if_fail.

bool GR_UnixImage::convertFromBuffer	(	const UT_ConstByteBufPtr &	pBB,
		const std::string &	mimetype,
		UT_sint32	iDisplayWidth,
		UT_sint32	iDisplayHeight
	)			`[virtual]`

Loads an image from from a byte buffer. Note: If the specified width and/or height does not match the size of the image contained in the byte buffer, some image information will be lost. WARNING: TODO

Parameters:

	iDisplayWidth	the width to which the image needs to be scaled. Values are in device units. Setting this to -1 will cause the image not to be scaled.
	iDisplayheight	the height to which the image needs to be scaled. Values are in device units. Setting this to -1 will cause the image not to be scaled.

Returns:: true if successful, false otherwise

Implements GR_Image.

References m_image, GR_Image::setDisplaySize(), UT_ASSERT, and UT_DEBUGMSG.

bool GR_UnixImage::convertToBuffer ( UT_ConstByteBufPtr & pBB ) const [virtual]

This method fills a byte buffer with a PNG representation of itself. This can be saved in the PT as a data-item and recreated. ppBB is a pointer to a pointer of a byte buffer. It's the callers job to delete it.

Implements GR_Image.

References convCallback(), abicollab::service::error(), m_image, and UT_ASSERT.

GdkPixbuf* GR_UnixImage::getData ( void ) const [inline]

Referenced by GR_UnixCroppedImage::cairoSetSource().

GR_Image::GRType GR_UnixImage::getType ( void ) const [virtual]

Reimplemented from GR_RasterImage.

References m_ImageType.

bool GR_UnixImage::hasAlpha ( void ) const [virtual]

Implements GR_RasterImage.

References m_image, and UT_return_val_if_fail.

Referenced by isTransparentAt().