Classes - Annotated - Tree - Functions - Home - Structure

QCanvasPixmapArray Class Reference
[ canvas module ]

An array of QCanvasPixmap to have multiple frames for animation. More...

#include <qcanvas.h>

List of all member functions.

Public Members

• QCanvasPixmapArray () 
• QCanvasPixmapArray ( const QString & datafilenamepattern, int framecount=0 ) 
• QCanvasPixmapArray ( QList<QPixmap>, QList<QPoint> hotspots ) 
• ~QCanvasPixmapArray () 
• bool readPixmaps ( const QString & datafilenamepattern, int framecount=0 ) 
• bool readCollisionMasks ( const QString & filenamepattern ) 
• int operator! () 
• QCanvasPixmap* image ( int i ) const
• void setImage ( int i, QCanvasPixmap * p ) 
• uint count () const

Detailed Description

This allows sprite objects to have multiple frames for animation.

QCanvasPixmaps for sprite objects are collected into QCanvasPixmapArrays, which are the set of images a sprite will use, indexed by the sprite's frame. This allows sprites to simply have animated forms.

Member Function Documentation

QCanvasPixmapArray::QCanvasPixmapArray ()

Constructs a null array. You should call readPixmaps() before using it further.

QCanvasPixmapArray::QCanvasPixmapArray ( QList<QPixmap> list, QList<QPoint> hotspots )

Constructs a QCanvasPixmapArray from QPixmaps.

QCanvasPixmapArray::QCanvasPixmapArray ( const QString & datafilenamepattern, int fc=0 )

Constructs a QCanvasPixmapArray from files. See readPixmaps() for details.

QCanvasPixmapArray::~QCanvasPixmapArray ()

Destructs the pixmap array.

uint QCanvasPixmapArray::count () const

Returns the length of the array.

QCanvasPixmap* QCanvasPixmapArray::image ( int i ) const

Returns the i-th pixmap in the array.

int QCanvasPixmapArray::operator! ()

Constructor failure check.

bool QCanvasPixmapArray::readCollisionMasks ( const QString & fname )

When testing sprite collision detection the default is to use the image mask of the sprite. By using readCollisionMasks(), an alternate mask can be used. The images must be 1-bit deep.

bool QCanvasPixmapArray::readPixmaps ( const QString & datafilenamepattern, int fc=0 )

Sets the array to fc pixmaps, read from files.

If fc is not 0, the filenames should contain a "%1", strings such as "foo%1.png". The actual filenames are formed by replacing the %1 with each integer from 0 to fc-1, with leading zeroes sufficient for 4 digits. eg. foo0000.png, foo0001.png, foo0002.png, etc.

void QCanvasPixmapArray::setImage ( int i, QCanvasPixmap * p )

Replaces the i-th pixmap by p. Note that p becomes owned by the array - it will be deleted later.

If i is more than count()-1, the array is extended to make room.

Search the documentation, FAQ, qt-interest archive and more (uses www.trolltech.com):

This file is part of the Qt toolkit, copyright © 1995-2000 Trolltech, all rights reserved.