DtPixmapPaperMap Class Reference

class DtPixmapPaperMap: More...

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.
Public Member Functions inherited from DtPaperMap
	DtPaperMap ()
virtual	~DtPaperMap ()
virtual const DtString &	name (void) const
virtual void	setName (const DtString &name)
virtual void	setShow (bool b)
virtual bool	show (void)
virtual DtPaperMap::AlphaMode	alphaMode () const
virtual void	setAlphaMode (DtPaperMap::AlphaMode alphaMode)
virtual void	setTransparencyLevel (int d)
virtual int	transparencyLevel () const
virtual const Coordinate_System *	coordSys () const
virtual bool	setCoordSys (DtPaperMap::DtCoordinateSystem sys, const Coordinate_System *terrainSys)
DtPaperMap::DtCoordinateSystem	coordinateSystemType () const

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 Member Functions inherited from DtPaperMap
	DtPaperMap (const DtPaperMap &orig)
DtPaperMap &	operator= (const DtPaperMap &rhs)

Protected Attributes
QImage *	myImage
DtPoint	myDbSwCorner
DtPoint	myDbNeCorner
DtFilename	myImageName
QSize	myImageSize
bool	myImageLoadingEnabled
Protected Attributes inherited from DtPaperMap
const Coordinate_System *	myCoordinateSystem
bool	myDeleteCoordSys
bool	myShow
DtString	myName
DtPaperMap::AlphaMode	myAlphaMode
DtPaperMap::DtCoordinateSystem	myCoordinateSystemType
int	myTransparencyLevel

Additional Inherited Members
Public Types inherited from DtPaperMap
enum	DtCoordinateSystem {   DtCSGeodetic, DtCSUtm, DtCSLcc, DtCSInvalid,   DtCSFlatEarth, DtCSLast }
enum	AlphaMode { NoAlpha, AlphaMask, AlphaBlend }

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

inlinevirtual

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  )

protectedvirtual

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  )

protectedvirtual

Returns a pointer to the slice of the image we need to display.

Reimplemented in DtMultiResPaperMap.

virtual bool DtPixmapPaperMap::isSupportedTif ( const QFileInfo &  info ) const

protectedvirtual

Returns true if the myImage variable is non-null (which will be true if the loaded image had an alpha channel)

Member Data Documentation

QImage* DtPixmapPaperMap::myImage

protected

Referenced by hasAlpha().

DtPoint DtPixmapPaperMap::myDbSwCorner

protected

DtPoint DtPixmapPaperMap::myDbNeCorner

protected

DtFilename DtPixmapPaperMap::myImageName

protected

QSize DtPixmapPaperMap::myImageSize

protected

bool DtPixmapPaperMap::myImageLoadingEnabled

protected

Referenced by imageLoadingEnabled().

---

The documentation for this class was generated from the following file:

• include/papermap/pixPprMap.h