DtMultiResPaperMap Class Reference

class DtMultiResPaperMap: More...

Inheritance diagram for DtMultiResPaperMap:

Public Member Functions
	DtMultiResPaperMap ()
	default constructor.
virtual	~DtMultiResPaperMap ()
	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 bool	loadImage (const DtFilename &imageFile, const Coordinate_System *coordSys)
virtual const DtString	mapType () const
const DtFilename &	mtlFilename () const
void	setCacheImages (bool)
bool	cacheImages () const
virtual void	setMapFolder (const DtFilename &folder)
virtual const DtFilename &	mapFolder () const
virtual bool	hasAlpha () const
virtual bool	canLoadImage () const
	Returns true if image can be loaded into memory.
Public Member Functions inherited from DtPixmapPaperMap
	DtPixmapPaperMap ()
	default constructor.
virtual	~DtPixmapPaperMap ()
	destructor
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 void	setImageName (const DtFilename &)
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 void	setImageLoadingEnabled (bool)
	Sets whether or not an image is loaded when it needs to be (true).
bool	imageLoadingEnabled () const
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 ()
static void	setAllowOptimization (bool)
	Turns on/off image caching and optimization system.
static bool	allowOptimization ()

Protected Member Functions
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	getImageSlice (const Coordinate_System *coordSys, const DtExtent &viewportExtent, const DtDisplaySize &screenSize, DtPoint &bitmapLocation, int &scaledBitmapSizeX, int &scaledBitmapSizeY, bool useMask, QColor *backgroundColor, QImage *retImage)
	Called from either of the two above methods, returns the resultant image in the image supplied.
virtual bool	drawAsImage () const
	Currently does not support alpha channel in image, so this will always return false.
virtual void	emptyActiveMapList ()
virtual void	emptyCachedMapList ()
virtual bool	addMapToActiveList (DtRasterMap *map)
virtual bool	recheckMaps (const DtExtent &dbExtent, double resolution, QSize &imageSizeFull, QSize &imageSizeSet, const Coordinate_System *coordSys, DtExtent &globalExtent)
virtual void	paintMap (const Coordinate_System *coordSys, DtMultiResActiveMapRecord &imageData, QRect &redraw, QImage *destImage, int pixWidth, int pixHeight, const DtExtent &dbExtent)
virtual void	calcWindowRect (DtMultiResActiveMapRecord &imageData, int pixWidth, int pixHeight, const DtExtent &dbExtent, QPoint &topLeft, QPoint &bottomRight)
virtual bool	getExtentIntersection (const DtExtent &rect1, const DtExtent &rect2, DtExtent &intersectionRect)
virtual bool	loadRasterSet (const DtFilename &filename, const Coordinate_System *coordSys)
virtual void	unloadRasterSet ()
virtual void	getXandYIncrements (const Coordinate_System *coordSys, double &xIncrement, double &yIncrement)
virtual void	initCacheInformation (const Coordinate_System *coordSys)
virtual double	resolutionFor (const Coordinate_System *coordSys, const DtExtent &extent)
virtual void	imageShift (const Coordinate_System *coordSys, const DtExtent &dbExtent)
	Will shift the current image to account for new sub images being placed in.
virtual bool	screenLocation (const Coordinate_System *coordSys, DtMultiResActiveMapRecord &imageData, int pixWidth, int pixHeight, const DtExtent &dbExtent, DtDisplayPoint &wll, DtDisplayPoint &wur)
Protected Member Functions inherited from DtPixmapPaperMap
	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	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
DtFilename	myMapFolder
DtRasterMapSet *	myRasterSet
DtRasterMapResSet *	myCurrentResSet
DtFilename	myMtlFile
bool	myCachedInformation
	Used only if geodetic split and not a geodetic database.
DtExtent	myImageExtent
QSize	myImageSize
bool	myCacheImages
	If true (default is false) images, when loaded, will not be unloaded but rather cached in the system.
bool	myOptimizeCacheImages
	Set if in optimization mode to true.
bool	myOptimization
	Set to true to turn on drawing optimization.
bool	myHasAlpha
	True if one of the raster maps has an alpha channel.
DtPtrQList < DtMultiResActiveMapRecord * >	myActiveMapList
QHash< DtRasterMap *, DtMultiResActiveMapRecord * >	myCachedImages
Protected Attributes inherited from DtPixmapPaperMap
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

Static Protected Attributes
static bool	theAllowOptimization

Private Member Functions
	DtMultiResPaperMap (const DtMultiResPaperMap &orig)
	copy constructor: Not Implemented
DtMultiResPaperMap &	operator= (const DtMultiResPaperMap &rhs)
	assignment operator: Not Implemented

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

Detailed Description

class DtMultiResPaperMap:

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

Constructor & Destructor Documentation

DtMultiResPaperMap::DtMultiResPaperMap

(

)

default constructor.

virtual DtMultiResPaperMap::~DtMultiResPaperMap ( )

virtual

destructor

DtMultiResPaperMap::DtMultiResPaperMap ( const DtMultiResPaperMap &  orig )

private

copy constructor: Not Implemented

Member Function Documentation

virtual bool DtMultiResPaperMap::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 DtPixmapPaperMap.

virtual bool DtMultiResPaperMap::loadImage ( const DtFilename &  imageFile, const Coordinate_System *  coordSys  )

virtual

Reimplemented from DtPixmapPaperMap.

virtual const DtString DtMultiResPaperMap::mapType ( ) const

virtual

Reimplemented from DtPixmapPaperMap.

static DtPaperMap* DtMultiResPaperMap::create ( )

static

Reimplemented from DtPixmapPaperMap.

const DtFilename & DtMultiResPaperMap::mtlFilename ( ) const

inline

References myMtlFile.

void DtMultiResPaperMap::setCacheImages ( bool  b )

inline

References myCacheImages.

bool DtMultiResPaperMap::cacheImages ( ) const

inline

References myCacheImages.

virtual void DtMultiResPaperMap::setMapFolder ( const DtFilename &  folder )

virtual

virtual const DtFilename& DtMultiResPaperMap::mapFolder ( ) const

virtual

bool DtMultiResPaperMap::hasAlpha ( ) const

inlinevirtual

Reimplemented from DtPixmapPaperMap.

References myHasAlpha.

void DtMultiResPaperMap::setAllowOptimization ( bool  b )

inlinestatic

Turns on/off image caching and optimization system.

References theAllowOptimization.

bool DtMultiResPaperMap::allowOptimization ( )

inlinestatic

References theAllowOptimization.

virtual bool DtMultiResPaperMap::canLoadImage ( ) const

virtual

Returns true if image can be loaded into memory.

Reimplemented from DtPixmapPaperMap.

virtual bool DtMultiResPaperMap::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 from DtPixmapPaperMap.

virtual bool DtMultiResPaperMap::getImageSlice ( const Coordinate_System *  coordSys, const DtExtent &  viewportExtent, const DtDisplaySize &  screenSize, DtPoint &  bitmapLocation, int &  scaledBitmapSizeX, int &  scaledBitmapSizeY, bool  useMask, QColor *  backgroundColor, QImage *  retImage  )

protectedvirtual

Called from either of the two above methods, returns the resultant image in the image supplied.

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

virtual bool DtMultiResPaperMap::drawAsImage ( ) const

protectedvirtual

Currently does not support alpha channel in image, so this will always return false.

virtual void DtMultiResPaperMap::emptyActiveMapList ( )

protectedvirtual

virtual void DtMultiResPaperMap::emptyCachedMapList ( )

protectedvirtual

virtual bool DtMultiResPaperMap::addMapToActiveList ( DtRasterMap *  map )

protectedvirtual

virtual bool DtMultiResPaperMap::recheckMaps ( const DtExtent &  dbExtent, double  resolution, QSize &  imageSizeFull, QSize &  imageSizeSet, const Coordinate_System *  coordSys, DtExtent &  globalExtent  )

protectedvirtual

virtual void DtMultiResPaperMap::paintMap ( const Coordinate_System *  coordSys, DtMultiResActiveMapRecord &  imageData, QRect &  redraw, QImage *  destImage, int  pixWidth, int  pixHeight, const DtExtent &  dbExtent  )

protectedvirtual

virtual void DtMultiResPaperMap::calcWindowRect ( DtMultiResActiveMapRecord &  imageData, int  pixWidth, int  pixHeight, const DtExtent &  dbExtent, QPoint &  topLeft, QPoint &  bottomRight  )

protectedvirtual

virtual bool DtMultiResPaperMap::getExtentIntersection ( const DtExtent &  rect1, const DtExtent &  rect2, DtExtent &  intersectionRect  )

protectedvirtual

Reimplemented from DtPixmapPaperMap.

virtual bool DtMultiResPaperMap::loadRasterSet ( const DtFilename &  filename, const Coordinate_System *  coordSys  )

protectedvirtual

virtual void DtMultiResPaperMap::unloadRasterSet ( )

protectedvirtual

virtual void DtMultiResPaperMap::getXandYIncrements ( const Coordinate_System *  coordSys, double &  xIncrement, double &  yIncrement  )

protectedvirtual

virtual void DtMultiResPaperMap::initCacheInformation ( const Coordinate_System *  coordSys )

protectedvirtual

virtual double DtMultiResPaperMap::resolutionFor ( const Coordinate_System *  coordSys, const DtExtent &  extent  )

protectedvirtual

virtual void DtMultiResPaperMap::imageShift ( const Coordinate_System *  coordSys, const DtExtent &  dbExtent  )

protectedvirtual

Will shift the current image to account for new sub images being placed in.

virtual bool DtMultiResPaperMap::screenLocation ( const Coordinate_System *  coordSys, DtMultiResActiveMapRecord &  imageData, int  pixWidth, int  pixHeight, const DtExtent &  dbExtent, DtDisplayPoint &  wll, DtDisplayPoint &  wur  )

protectedvirtual

DtMultiResPaperMap& DtMultiResPaperMap::operator= ( const DtMultiResPaperMap &  rhs )

private

assignment operator: Not Implemented

Member Data Documentation

DtFilename DtMultiResPaperMap::myMapFolder

protected

DtRasterMapSet* DtMultiResPaperMap::myRasterSet

protected

DtRasterMapResSet* DtMultiResPaperMap::myCurrentResSet

protected

DtFilename DtMultiResPaperMap::myMtlFile

protected

Referenced by mtlFilename().

bool DtMultiResPaperMap::myCachedInformation

protected

Used only if geodetic split and not a geodetic database.

DtExtent DtMultiResPaperMap::myImageExtent

protected

QSize DtMultiResPaperMap::myImageSize

protected

bool DtMultiResPaperMap::myCacheImages

protected

If true (default is false) images, when loaded, will not be unloaded but rather cached in the system.

Set this flag to true when performance is more of an issue than memory usage.

Referenced by cacheImages(), and setCacheImages().

bool DtMultiResPaperMap::myOptimizeCacheImages

protected

Set if in optimization mode to true.

Use different flag in case not in optimization mode but still want to cache images

bool DtMultiResPaperMap::myOptimization

protected

Set to true to turn on drawing optimization.

bool DtMultiResPaperMap::theAllowOptimization

staticprotected

Referenced by allowOptimization(), and setAllowOptimization().

bool DtMultiResPaperMap::myHasAlpha

protected

True if one of the raster maps has an alpha channel.

Referenced by hasAlpha().

DtPtrQList<DtMultiResActiveMapRecord*> DtMultiResPaperMap::myActiveMapList

protected

QHash<DtRasterMap*, DtMultiResActiveMapRecord*> DtMultiResPaperMap::myCachedImages

protected

---

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

• include/papermap/mResPprMap.h