QWinMetaFile Class Reference

QWinMetaFile is a WMF viewer based on QT toolkit How to use QWinMetaFile :. More...

#include <qwmf.h>

Collaboration diagram for QWinMetaFile:


Public Member Functions
virtual bool	load (const QString &fileName)
virtual bool	load (QBuffer &buffer)
virtual bool	paint (const QPaintDevice *target, bool absolute=false)
bool	isPlaceable (void) const
bool	isEnhanced (void) const
QRect	bbox (void) const
void	setWindowOrg (long num, short *parms)
void	setWindowExt (long num, short *parms)
void	lineTo (long num, short *parms)
void	moveTo (long num, short *parms)
void	ellipse (long num, short *parms)
void	polygon (long num, short *parms)
void	polyPolygon (long num, short *parms)
void	polyline (long num, short *parms)
void	rectangle (long num, short *parms)
void	roundRect (long num, short *parms)
void	arc (long num, short *parms)
void	chord (long num, short *parms)
void	pie (long num, short *parms)
void	setPolyFillMode (long num, short *parms)
void	setBkColor (long num, short *parms)
void	setBkMode (long num, short *parms)
void	setPixel (long num, short *parms)
void	setRop (long num, short *parms)
void	saveDC (long num, short *parms)
void	restoreDC (long num, short *parms)
void	intersectClipRect (long num, short *parms)
void	excludeClipRect (long num, short *parms)
void	setTextColor (long num, short *parms)
void	setTextAlign (long num, short *parms)
void	textOut (long num, short *parms)
void	extTextOut (long num, short *parms)
void	dibBitBlt (long num, short *parms)
void	dibStretchBlt (long num, short *parms)
void	stretchDib (long num, short *parms)
void	dibCreatePatternBrush (long num, short *parms)
void	selectObject (long num, short *parms)
void	deleteObject (long num, short *parms)
void	createEmptyObject (long num, short *parms)
void	createBrushIndirect (long num, short *parms)
void	createPenIndirect (long num, short *parms)
void	createFontIndirect (long num, short *parms)
void	noop (long, short *)
void	end (long, short *)
int	dpi (void) const
Protected Member Functions
unsigned short	calcCheckSum (WmfPlaceableHeader *)
virtual int	findFunc (unsigned short aFunc) const
QPointArray *	pointArray (short num, short *parms)
QColor	color (short *parm)
unsigned int	toDWord (short *parm)
void	xyToAngle (int xStart, int yStart, int xEnd, int yEnd, int &angle, int &aLength)
void	addHandle (WinObjHandle *)
void	deleteHandle (int)
Qt::RasterOp	winToQtRaster (short parm) const
Qt::RasterOp	winToQtRaster (long parm) const
bool	dibToBmp (QImage &bmp, const char *dib, long size)
Protected Attributes
QPainter	mPainter
bool	mIsPlaceable
bool	mIsEnhanced
bool	mValid
bool	mAbsoluteCoord
QWMatrix	mInternalWorldMatrix
QRect	mHeaderBoundingBox
QRect	mBBox
QColor	mTextColor
int	mTextAlign
int	mRotation
bool	mWinding
WmfCmd *	mFirstCmd
WinObjHandle **	mObjHandleTab
QPointArray	mPoints
int	mDpi

Detailed Description

QWinMetaFile is a WMF viewer based on QT toolkit How to use QWinMetaFile :.

�#include "qwmf.h"
 QWinMetaFile wmf;
 QPicture pic;     // or QImage pic;
 if ( wmf.load( filename )
�  �wmf.paint( &pic );

Definition at line 52 of file qwmf.h.

Member Function Documentation

bool QWinMetaFile::load ( const QString & fileName ) [virtual]

Load WMF file.

Returns:
true on success.

Definition at line 133 of file qwmf.cc.

bool QWinMetaFile::paint ( const QPaintDevice * target,

bool absolute = false

) [virtual]

Paint metafile to given paint-device using absolute or relative coordinate.

absolute coord. Reset the world transfomation Matrix

relative coord. Use the existing world transfomation Matrix

Returns:
true on success.

Definition at line 332 of file qwmf.cc.
References noop().

bool QWinMetaFile::isPlaceable ( void ) const [inline]

Returns:
true if the metafile is placeable.

Definition at line 77 of file qwmf.h.

bool QWinMetaFile::isEnhanced ( void ) const [inline]

Returns:
true if the metafile is enhanced.

Definition at line 82 of file qwmf.h.

QRect QWinMetaFile::bbox ( void ) const [inline]

Returns:
bounding rectangle

Definition at line 87 of file qwmf.h.
Referenced by excludeClipRect(), intersectClipRect(), and polyPolygon().

void QWinMetaFile::setWindowOrg ( long num,

short * parms

)

set window origin

Definition at line 405 of file qwmf.cc.
References QPainter::translate().

void QWinMetaFile::setWindowExt ( long num,

short * parms

)

set window extents

Definition at line 424 of file qwmf.cc.
References QPainter::scale(), and QPainter::translate().

void QWinMetaFile::lineTo ( long num,

short * parms

)

draw line to coord

Definition at line 459 of file qwmf.cc.

void QWinMetaFile::moveTo ( long num,

short * parms

)

move pen to coord

Definition at line 466 of file qwmf.cc.

void QWinMetaFile::ellipse ( long num,

short * parms

)

draw ellipse

Definition at line 473 of file qwmf.cc.

void QWinMetaFile::polygon ( long num,

short * parms

)

draw polygon

Definition at line 480 of file qwmf.cc.
References pointArray().

void QWinMetaFile::polyPolygon ( long num,

short * parms

)

draw a list of polygons

Definition at line 490 of file qwmf.cc.
References bbox(), and pointArray().

void QWinMetaFile::polyline ( long num,

short * parms

)

draw series of lines

Definition at line 533 of file qwmf.cc.
References pointArray().

void QWinMetaFile::rectangle ( long num,

short * parms

)

draw a rectangle

Definition at line 543 of file qwmf.cc.

void QWinMetaFile::roundRect ( long num,

short * parms

)

draw round rectangle

Definition at line 550 of file qwmf.cc.

void QWinMetaFile::arc ( long num,

short * parms

)

draw arc

Definition at line 565 of file qwmf.cc.
References xyToAngle().

void QWinMetaFile::chord ( long num,

short * parms

)

draw chord

Definition at line 579 of file qwmf.cc.
References xyToAngle().

void QWinMetaFile::pie ( long num,

short * parms

)

draw pie

Definition at line 593 of file qwmf.cc.
References xyToAngle().

void QWinMetaFile::setPolyFillMode ( long num,

short * parms

)

set polygon fill mode

Definition at line 607 of file qwmf.cc.

void QWinMetaFile::setBkColor ( long num,

short * parms

)

set background pen color

Definition at line 614 of file qwmf.cc.
References color().

void QWinMetaFile::setBkMode ( long num,

short * parms

)

set background pen mode

Definition at line 621 of file qwmf.cc.

void QWinMetaFile::setPixel ( long num,

short * parms

)

set a pixel

Definition at line 629 of file qwmf.cc.
References color().

void QWinMetaFile::setRop ( long num,

short * parms

)

Set raster operation mode.

Definition at line 639 of file qwmf.cc.
References winToQtRaster().

void QWinMetaFile::saveDC ( long num,

short * parms

)

save device context

Definition at line 646 of file qwmf.cc.

void QWinMetaFile::restoreDC ( long num,

short * parms

)

restore device context

Definition at line 653 of file qwmf.cc.

void QWinMetaFile::intersectClipRect ( long num,

short * parms

)

clipping region is the intersection of this region and the original region

Definition at line 661 of file qwmf.cc.
References bbox().

void QWinMetaFile::excludeClipRect ( long num,

short * parms

)

delete a clipping rectangle of the original region

Definition at line 678 of file qwmf.cc.
References bbox().

void QWinMetaFile::setTextColor ( long num,

short * parms

)

set text color

Definition at line 697 of file qwmf.cc.
References color().

void QWinMetaFile::setTextAlign ( long num,

short * parms

)

set text alignment

Definition at line 704 of file qwmf.cc.

void QWinMetaFile::textOut ( long num,

short * parms

)

draw text

Definition at line 711 of file qwmf.cc.

void QWinMetaFile::dibBitBlt ( long num,

short * parms

)

copies a DIB into a dest location

Definition at line 795 of file qwmf.cc.
References dibToBmp(), toDWord(), and winToQtRaster().

void QWinMetaFile::dibStretchBlt ( long num,

short * parms

)

stretches a DIB into a dest location

Definition at line 826 of file qwmf.cc.
References dibToBmp(), toDWord(), and winToQtRaster().

void QWinMetaFile::dibCreatePatternBrush ( long num,

short * parms

)

create a pattern brush

Definition at line 884 of file qwmf.cc.
References addHandle(), and dibToBmp().

void QWinMetaFile::selectObject ( long num,

short * parms

)

Activate object handle.

Definition at line 900 of file qwmf.cc.

void QWinMetaFile::deleteObject ( long num,

short * parms

)

Free object handle.

Definition at line 909 of file qwmf.cc.

void QWinMetaFile::createEmptyObject ( long num,

short * parms

)

create an empty object in the object list

Definition at line 916 of file qwmf.cc.
References addHandle().

void QWinMetaFile::createBrushIndirect ( long num,

short * parms

)

create a logical brush

Definition at line 926 of file qwmf.cc.
References addHandle(), and color().

void QWinMetaFile::createPenIndirect ( long num,

short * parms

)

create a logical pen

Definition at line 976 of file qwmf.cc.
References addHandle(), and color().

void QWinMetaFile::createFontIndirect ( long num,

short * parms

)

create a logical font

Definition at line 1013 of file qwmf.cc.
References addHandle().

void QWinMetaFile::noop ( long ,

short *

)

nothing to do

Definition at line 1035 of file qwmf.cc.
Referenced by paint().

void QWinMetaFile::end ( long ,

short *

)

end of meta file

Definition at line 1040 of file qwmf.cc.

int QWinMetaFile::dpi ( void ) const [inline]

Resolution of the image in dots per inch.

Definition at line 177 of file qwmf.h.

unsigned short QWinMetaFile::calcCheckSum ( WmfPlaceableHeader * ) [protected]

Calculate header checksum.

Definition at line 1048 of file qwmf.cc.

int QWinMetaFile::findFunc ( unsigned short aFunc ) const [protected, virtual]

Find function in metafunc table by metafile-function.
Returns index or -1 if not found.
Definition at line 1065 of file qwmf.cc.

QPointArray * QWinMetaFile::pointArray ( short num,

short * parms

) [protected]

Fills given parms into mPoints.

Definition at line 1077 of file qwmf.cc.
Referenced by polygon(), polyline(), and polyPolygon().

QColor QWinMetaFile::color ( short * parm ) [protected]

Returns color given by the two parameters.

Definition at line 1112 of file qwmf.cc.
References toDWord().
Referenced by createBrushIndirect(), createPenIndirect(), setBkColor(), setPixel(), and setTextColor().

unsigned int QWinMetaFile::toDWord ( short * parm ) [protected]

Converts two parameters to long.

Definition at line 1090 of file qwmf.cc.
Referenced by color(), dibBitBlt(), and dibStretchBlt().

void QWinMetaFile::xyToAngle ( int xStart,

int yStart,

int xEnd,

int yEnd,

int & angle,

int & aLength

) [protected]

Convert (x1,y1) and (x2, y2) positions in angle and angleLength.

Definition at line 1127 of file qwmf.cc.
Referenced by arc(), chord(), and pie().

void QWinMetaFile::addHandle ( WinObjHandle * ) [protected]

Handle win-object-handles.

Definition at line 1141 of file qwmf.cc.
Referenced by createBrushIndirect(), createEmptyObject(), createFontIndirect(), createPenIndirect(), and dibCreatePatternBrush().

Qt::RasterOp QWinMetaFile::winToQtRaster ( short parm ) const [protected]

Convert windows rasterOp in QT rasterOp.

Definition at line 1165 of file qwmf.cc.
Referenced by dibBitBlt(), dibStretchBlt(), and setRop().

bool QWinMetaFile::dibToBmp ( QImage & bmp,

const char * dib,

long size

) [protected]

Converts DIB to BMP.

Definition at line 1225 of file qwmf.cc.
Referenced by dibBitBlt(), dibCreatePatternBrush(), and dibStretchBlt().

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

lib Library API Documentation

QWinMetaFile Class Reference

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Member Function Documentation