Inheritance diagram for DtPixmapPaperMap:

Public Member Functions
	DtPixmapPaperMap ()
	default constructor.
virtual	~DtPixmapPaperMap ()
	destructor
virtual bool	init (const DtFilename &path, DtPaperMapRecord paperMapRec, const Coordinate_System coordSys)
	Load the papermap. coordSys is the coordinate system of the terrain database.
virtual const DtPoint &	dbSwCorner () const
	Returns the southwest point of the bitmap in database coordinates.
virtual void	setDbSwCorner (const DtPoint &)
virtual const DtPoint &	dbNeCorner () const
	Returns the northeast point of the bitmap in database coordinates.
virtual void	setDbNeCorner (const DtPoint &)
virtual const DtFilename &	imageName () const
	Returns the image name this record was loaded with.
virtual double	xSize () const
	Returns the width of the bitmap.
virtual double	ySize () const
	Returns the height of the bitmap.
virtual void	load ()
virtual bool	getScaledImage (const Coordinate_System coordSys, const DtExtent &viewportExtent, const DtDisplaySize &screenSize, DtPoint &bitmapLocation, QImage &image, bool useMask, QColor backgroundColor=NULL, int scaledBitmapX=NULL, int scaledBitmapY=NULL)
	Returns a pointer to the scaled bitmap as a QImage.
virtual bool	getBoundingBox (const DtExtent &viewportExtent, DtExtent &paperMapExtent, DtExtent &visibleExtent, DtDisplayPoint &wll, DtDisplayPoint &wur)
	Returns extent information.
virtual bool	setCoordinates (const DtPoint &swCorner, const DtPoint &neCorner, const Coordinate_System *coordSys)
	Sets nw and se db coordinates.
virtual const DtString	mapType () const
virtual void	setImageName (const DtFilename &)
virtual bool	loadImage (const DtFilename &imageFile, const Coordinate_System *coordSys)
QImage *	image ()
virtual QSize	imageSize () const
virtual QSize	setImageSize (const QSize &)
	Sets the size of the base image by scaling it (if necessary) and returns the image size that is resultant.
virtual bool	hasAlpha () const
virtual void	setImageLoadingEnabled (bool)
	Sets whether or not an image is loaded when it needs to be (true).
bool	imageLoadingEnabled () const
virtual bool	canLoadImage () const
	Returns true if image can be loaded into memory.
Static Public Member Functions
static DtPaperMap *	create ()
Protected Member Functions
	DtPixmapPaperMap (const DtPixmapPaperMap &orig)
	copy constructor
DtPixmapPaperMap &	operator= (const DtPixmapPaperMap &rhs)
	assignment operator
DtPoint	getDbPoint (const DtPoint &point, const Coordinate_System coordFrom, const Coordinate_System coordTo)
	converts metafile coordinates to database coordinates
virtual bool	getExtentIntersection (const DtExtent &rect1, const DtExtent &rect2, DtExtent &intersectionRect)
virtual bool	getImageSlice (const Coordinate_System coordSys, const DtExtent &viewportExtent, const DtDisplaySize &screenSize, DtPoint &bitmapLocation, int &scaledBitmapSizeX, int &scaledBitmapSizeY, QImage &image, bool useMask, QColor backgroundColor)
	Returns a pointer to the slice of the image we need to display.
virtual bool	isSupportedTif (const QFileInfo &info) const
	Returns true if the myImage variable is non-null (which will be true if the loaded image had an alpha channel)
Protected Attributes
QImage *	myImage
DtPoint	myDbSwCorner
DtPoint	myDbNeCorner
DtFilename	myImageName
QSize	myImageSize
bool	myImageLoadingEnabled

Detailed Description

class DtPixmapPaperMap:

Instances of this class are individual papermaps, loaded from a file in in some raster format.

Constructor & Destructor Documentation

DtPixmapPaperMap::DtPixmapPaperMap ( )

default constructor.

virtual DtPixmapPaperMap::~DtPixmapPaperMap ( ) [virtual]

destructor

DtPixmapPaperMap::DtPixmapPaperMap ( const DtPixmapPaperMap & orig ) [protected]

copy constructor

Member Function Documentation

virtual bool DtPixmapPaperMap::init	(	const DtFilename &	path,
		DtPaperMapRecord *	paperMapRec,
		const Coordinate_System *	coordSys
	)		`[virtual]`

Load the papermap. coordSys is the coordinate system of the terrain database.

Reimplemented from DtPaperMap.

Reimplemented in DtMultiResPaperMap.

virtual const DtPoint& DtPixmapPaperMap::dbSwCorner ( ) const [virtual]

Returns the southwest point of the bitmap in database coordinates.

virtual void DtPixmapPaperMap::setDbSwCorner ( const DtPoint & ) [virtual]

virtual const DtPoint& DtPixmapPaperMap::dbNeCorner ( ) const [virtual]

Returns the northeast point of the bitmap in database coordinates.

virtual void DtPixmapPaperMap::setDbNeCorner ( const DtPoint & ) [virtual]

virtual const DtFilename& DtPixmapPaperMap::imageName ( ) const [virtual]

Returns the image name this record was loaded with.

virtual double DtPixmapPaperMap::xSize ( ) const [virtual]

Returns the width of the bitmap.

virtual double DtPixmapPaperMap::ySize ( ) const [virtual]

Returns the height of the bitmap.

virtual void DtPixmapPaperMap::load ( ) [virtual]

virtual bool DtPixmapPaperMap::getScaledImage	(	const Coordinate_System *	coordSys,
		const DtExtent &	viewportExtent,
		const DtDisplaySize &	screenSize,
		DtPoint &	bitmapLocation,
		QImage &	image,
		bool	useMask,
		QColor *	backgroundColor = `NULL`,
		int *	scaledBitmapX = `NULL`,
		int *	scaledBitmapY = `NULL`
	)		`[virtual]`

Returns a pointer to the scaled bitmap as a QImage.

Note the image is returned in an unscaled for. The scaledBitmapX and scaledBitmapY are the width and height the image should be. It is not scaled to try and improve performance.

Implements DtPaperMap.

virtual bool DtPixmapPaperMap::getBoundingBox	(	const DtExtent &	viewportExtent,
		DtExtent &	paperMapExtent,
		DtExtent &	visibleExtent,
		DtDisplayPoint &	wll,
		DtDisplayPoint &	wur
	)		`[virtual]`

Returns extent information.

virtual bool DtPixmapPaperMap::setCoordinates	(	const DtPoint &	swCorner,
		const DtPoint &	neCorner,
		const Coordinate_System *	coordSys
	)		`[virtual]`

Sets nw and se db coordinates.

virtual const DtString DtPixmapPaperMap::mapType ( ) const [virtual]

Implements DtPaperMap.

Reimplemented in DtMultiResPaperMap.

static DtPaperMap* DtPixmapPaperMap::create ( ) [static]

Reimplemented from DtPaperMap.

Reimplemented in DtMultiResPaperMap.

virtual void DtPixmapPaperMap::setImageName ( const DtFilename & ) [virtual]

virtual bool DtPixmapPaperMap::loadImage	(	const DtFilename &	imageFile,
		const Coordinate_System *	coordSys
	)		`[virtual]`

Reimplemented in DtMultiResPaperMap.

QImage* DtPixmapPaperMap::image ( ) [inline]

virtual QSize DtPixmapPaperMap::imageSize ( ) const [virtual]

virtual QSize DtPixmapPaperMap::setImageSize ( const QSize & ) [virtual]

Sets the size of the base image by scaling it (if necessary) and returns the image size that is resultant.

bool DtPixmapPaperMap::hasAlpha ( ) const [inline, virtual]

Reimplemented in DtMultiResPaperMap.

References myImage.

virtual void DtPixmapPaperMap::setImageLoadingEnabled ( bool ) [virtual]

Sets whether or not an image is loaded when it needs to be (true).

If set to false and an image is loaded, will unload image. If set to true and no image is loaded, will load image

bool DtPixmapPaperMap::imageLoadingEnabled ( ) const [inline]

References myImageLoadingEnabled.

virtual bool DtPixmapPaperMap::canLoadImage ( ) const [virtual]

Returns true if image can be loaded into memory.

Reimplemented in DtMultiResPaperMap.

DtPixmapPaperMap& DtPixmapPaperMap::operator= ( const DtPixmapPaperMap & rhs ) [protected]

assignment operator

DtPoint DtPixmapPaperMap::getDbPoint	(	const DtPoint &	point,
		const Coordinate_System *	coordFrom,
		const Coordinate_System *	coordTo
	)		`[protected]`

converts metafile coordinates to database coordinates

virtual bool DtPixmapPaperMap::getExtentIntersection	(	const DtExtent &	rect1,
		const DtExtent &	rect2,
		DtExtent &	intersectionRect
	)		`[protected, virtual]`

Reimplemented in DtMultiResPaperMap.

virtual bool DtPixmapPaperMap::getImageSlice	(	const Coordinate_System *	coordSys,
		const DtExtent &	viewportExtent,
		const DtDisplaySize &	screenSize,
		DtPoint &	bitmapLocation,
		int &	scaledBitmapSizeX,
		int &	scaledBitmapSizeY,
		QImage &	image,
		bool	useMask,
		QColor *	backgroundColor
	)		`[protected, virtual]`