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authorTimothy Pearson <kb9vqf@pearsoncomputing.net>2011-11-08 12:31:36 -0600
committerTimothy Pearson <kb9vqf@pearsoncomputing.net>2011-11-08 12:31:36 -0600
commitd796c9dd933ab96ec83b9a634feedd5d32e1ba3f (patch)
tree6e3dcca4f77e20ec8966c666aac7c35bd4704053 /src/kernel/qmovie.cpp
downloadtqt3-d796c9dd933ab96ec83b9a634feedd5d32e1ba3f.tar.gz
tqt3-d796c9dd933ab96ec83b9a634feedd5d32e1ba3f.zip
Test conversion to TQt3 from Qt3 8c6fc1f8e35fd264dd01c582ca5e7549b32ab731
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+/****************************************************************************
+**
+** Implementation of movie classes
+**
+** Created : 970617
+**
+** Copyright (C) 1992-2008 Trolltech ASA. All rights reserved.
+**
+** This file is part of the kernel module of the TQt GUI Toolkit.
+**
+** This file may be used under the terms of the GNU General
+** Public License versions 2.0 or 3.0 as published by the Free
+** Software Foundation and appearing in the files LICENSE.GPL2
+** and LICENSE.GPL3 included in the packaging of this file.
+** Alternatively you may (at your option) use any later version
+** of the GNU General Public License if such license has been
+** publicly approved by Trolltech ASA (or its successors, if any)
+** and the KDE Free TQt Foundation.
+**
+** Please review the following information to ensure GNU General
+** Public Licensing retquirements will be met:
+** http://trolltech.com/products/qt/licenses/licensing/opensource/.
+** If you are unsure which license is appropriate for your use, please
+** review the following information:
+** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
+** or contact the sales department at sales@trolltech.com.
+**
+** This file may be used under the terms of the Q Public License as
+** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
+** included in the packaging of this file. Licensees holding valid TQt
+** Commercial licenses may use this file in accordance with the TQt
+** Commercial License Agreement provided with the Software.
+**
+** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
+** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
+** herein.
+**
+**********************************************************************/
+
+// #define QT_SAVE_MOVIE_HACK
+
+#include "qtimer.h"
+#include "qpainter.h"
+#include "qptrlist.h"
+#include "qbitmap.h"
+#include "qmovie.h"
+#include "qfile.h"
+#include "qbuffer.h"
+#include "qobject.h"
+#include "qpixmapcache.h"
+
+#ifndef QT_NO_MOVIE
+
+#ifdef Q_WS_QWS
+#include "qgfx_qws.h"
+#endif
+
+#include "qasyncio.h"
+#include "qasyncimageio.h"
+
+#include <stdlib.h>
+
+/*!
+ \class TQMovie qmovie.h
+ \brief The TQMovie class provides incremental loading of animations or images, signalling as it progresses.
+
+ \ingroup images
+ \ingroup graphics
+ \ingroup multimedia
+ \mainclass
+
+ The simplest way to display a TQMovie is to use a TQLabel and
+ TQLabel::setMovie().
+
+ A TQMovie provides a TQPixmap as the framePixmap(); connections can
+ be made via connectResize() and connectUpdate() to receive
+ notification of size and pixmap changes. All decoding is driven
+ by the normal event-processing mechanisms.
+
+ The movie begins playing as soon as the TQMovie is created
+ (actually, once control returns to the event loop). When the last
+ frame in the movie has been played, it may loop back to the start
+ if such looping is defined in the input source.
+
+ TQMovie objects are explicitly shared. This means that a TQMovie
+ copied from another TQMovie will be displaying the same frame at
+ all times. If one shared movie pauses, all pause. To make \e
+ independent movies, they must be constructed separately.
+
+ The set of data formats supported by TQMovie is determined by the
+ decoder factories that have been installed; the format of the
+ input is determined as the input is decoded.
+
+ The supported formats are MNG (if TQt is configured with MNG
+ support enabled) and GIF (if TQt is configured with GIF support
+ enabled, see qgif.h).
+
+ If TQt is configured to support GIF reading, we are retquired to
+ state that "The Graphics Interchange Format(c) is the Copyright
+ property of CompuServe Incorporated. GIF(sm) is a Service Mark
+ property of CompuServe Incorporated.
+
+ \warning If you are in a country that recognizes software patents
+ and in which Unisys holds a patent on LZW compression and/or
+ decompression and you want to use GIF, Unisys may retquire you to
+ license that technology. Such countries include Canada, Japan,
+ the USA, France, Germany, Italy and the UK.
+
+ GIF support may be removed completely in a future version of TQt.
+ We recommend using the MNG or PNG format.
+
+ \img qmovie.png TQMovie
+
+ \sa TQLabel::setMovie()
+*/
+
+/*!
+ \enum TQMovie::Status
+
+ \value SourceEmpty
+ \value UnrecognizedFormat
+ \value Paused
+ \value EndOfFrame
+ \value EndOfLoop
+ \value EndOfMovie
+ \value SpeedChanged
+*/
+
+class TQMoviePrivate : public TQObject, public TQShared,
+ private TQDataSink, private TQImageConsumer
+{
+ Q_OBJECT
+
+public: // for TQMovie
+
+ // Creates a null Private
+ TQMoviePrivate();
+
+ // NOTE: The ownership of the TQDataSource is transferred to the Private
+ TQMoviePrivate(TQDataSource* src, TQMovie* movie, int bufsize);
+
+ virtual ~TQMoviePrivate();
+
+ bool isNull() const;
+
+ // Initialize, possibly to the null state
+ void init(bool fully);
+ void flushBuffer();
+ void updatePixmapFromImage();
+ void updatePixmapFromImage(const TQPoint& off, const TQRect& area);
+ void showChanges();
+
+ // This as TQImageConsumer
+ void changed(const TQRect& rect);
+ void end();
+ void preFrameDone(); //util func
+ void frameDone();
+ void frameDone(const TQPoint&, const TQRect& rect);
+ void restartTimer();
+ void setLooping(int l);
+ void setFramePeriod(int milliseconds);
+ void setSize(int w, int h);
+
+ // This as TQDataSink
+ int readyToReceive();
+ void receive(const uchar* b, int bytecount);
+ void eof();
+ void pause();
+
+signals:
+ void sizeChanged(const TQSize&);
+ void areaChanged(const TQRect&);
+ void dataStatus(int);
+
+public slots:
+ void refresh();
+
+public:
+ TQMovie *that;
+ TQWidget * display_widget;
+
+ TQImageDecoder *decoder;
+
+ // Cyclic buffer
+ int buf_size;
+ uchar *buffer;
+ int buf_r, buf_w, buf_usage;
+
+ int framenumber;
+ int frameperiod;
+ int speed;
+ TQTimer *frametimer;
+ int lasttimerinterval;
+ int loop;
+ bool movie_ended;
+ bool dirty_cache;
+ bool waitingForFrameTick;
+ int stepping;
+ TQRect changed_area;
+ TQRect valid_area;
+ TQDataPump *pump;
+ TQDataSource *source;
+ TQPixmap mypixmap;
+ TQBitmap mymask;
+ TQColor bg;
+
+ int error;
+ bool empty;
+
+#ifdef QT_SAVE_MOVIE_HACK
+ bool save_image;
+ int image_number;
+#endif
+};
+
+
+TQMoviePrivate::TQMoviePrivate()
+{
+ dirty_cache = FALSE;
+ buffer = 0;
+ pump = 0;
+ source = 0;
+ decoder = 0;
+ display_widget=0;
+ buf_size = 0;
+ init(FALSE);
+}
+
+// NOTE: The ownership of the TQDataSource is transferred to the Private
+TQMoviePrivate::TQMoviePrivate(TQDataSource* src, TQMovie* movie, int bufsize) :
+ that(movie),
+ buf_size(bufsize)
+{
+ frametimer = new TQTimer(this);
+ pump = src ? new TQDataPump(src, this) : 0;
+ TQObject::connect(frametimer, SIGNAL(timeout()), this, SLOT(refresh()));
+ dirty_cache = FALSE;
+ source = src;
+ buffer = 0;
+ decoder = 0;
+ speed = 100;
+ display_widget=0;
+ init(TRUE);
+}
+
+TQMoviePrivate::~TQMoviePrivate()
+{
+ if ( buffer ) // Avoid purify complaint
+ delete [] buffer;
+ delete pump;
+ delete decoder;
+ delete source;
+
+ // Too bad.. but better be safe than sorry
+ if ( dirty_cache )
+ TQPixmapCache::clear();
+}
+
+bool TQMoviePrivate::isNull() const
+{
+ return !buf_size;
+}
+
+// Initialize. Only actually allocate any space if \a fully is TRUE,
+// otherwise, just enough to be a valid null Private.
+void TQMoviePrivate::init(bool fully)
+{
+#ifdef QT_SAVE_MOVIE_HACK
+ save_image = TRUE;
+ image_number = 0;
+#endif
+
+ buf_usage = buf_r = buf_w = 0;
+ if ( buffer ) // Avoid purify complaint
+ delete [] buffer;
+ buffer = fully ? new uchar[buf_size] : 0;
+ if ( buffer )
+ memset( buffer, 0, buf_size );
+
+ delete decoder;
+ decoder = fully ? new TQImageDecoder(this) : 0;
+
+#ifdef AVOID_OPEN_FDS
+ if ( source && !source->isOpen() )
+ source->open(IO_ReadOnly);
+#endif
+
+ waitingForFrameTick = FALSE;
+ stepping = -1;
+ framenumber = 0;
+ frameperiod = -1;
+ if (fully) frametimer->stop();
+ lasttimerinterval = -1;
+ changed_area.setRect(0,0,-1,-1);
+ valid_area = changed_area;
+ loop = -1;
+ movie_ended = FALSE;
+ error = 0;
+ empty = TRUE;
+}
+
+void TQMoviePrivate::flushBuffer()
+{
+ int used;
+ while (buf_usage && !waitingForFrameTick && stepping != 0 && !error) {
+ used = decoder->decode(buffer + buf_r, TQMIN(buf_usage, buf_size - buf_r));
+ if (used <= 0) {
+ if ( used < 0 ) {
+ error = 1;
+ emit dataStatus(TQMovie::UnrecognizedFormat);
+ }
+ break;
+ }
+ buf_r = (buf_r + used) % buf_size;
+ buf_usage -= used;
+ }
+
+ // Some formats, like MNG, can make stuff happen without any extra data.
+ // Only do this if the movie hasn't ended, however or we'll never get the end of loop signal.
+ if (!movie_ended) {
+ used = decoder->decode(buffer + buf_r, 0);
+ if (used <= 0) {
+ if ( used < 0 ) {
+ error = 1;
+ emit dataStatus(TQMovie::UnrecognizedFormat);
+ }
+ }
+ }
+
+ if (error)
+ frametimer->stop();
+ maybeReady();
+}
+
+void TQMoviePrivate::updatePixmapFromImage()
+{
+ if (changed_area.isEmpty()) return;
+ updatePixmapFromImage(TQPoint(0,0),changed_area);
+}
+
+void TQMoviePrivate::updatePixmapFromImage(const TQPoint& off,
+ const TQRect& area)
+{
+ // Create temporary TQImage to hold the part we want
+ const TQImage& gimg = decoder->image();
+ TQImage img = gimg.copy(area);
+
+#ifdef QT_SAVE_MOVIE_HACK
+ if ( save_image ) {
+ TQString name;
+ name.sprintf("movie%i.ppm",image_number++);
+ gimg.save( name, "PPM" );
+ }
+#endif
+
+ // Resize to size of image
+ if (mypixmap.width() != gimg.width() || mypixmap.height() != gimg.height())
+ mypixmap.resize(gimg.width(), gimg.height());
+
+ // Convert to pixmap and paste that onto myself
+ TQPixmap lines;
+
+#ifndef QT_NO_SPRINTF
+ if (!(frameperiod < 0 && loop == -1)) {
+ // its an animation, lets see if we converted
+ // this frame already.
+ TQString key;
+ key.sprintf( "%08lx:%04d", ( long )this, framenumber );
+ if ( !TQPixmapCache::find( key, lines ) ) {
+ lines.convertFromImage(img, TQt::ColorOnly);
+ TQPixmapCache::insert( key, lines );
+ dirty_cache = TRUE;
+ }
+ } else
+#endif
+ {
+ lines.convertFromImage(img, TQt::ColorOnly);
+ }
+
+ if (bg.isValid()) {
+ TQPainter p;
+ p.begin(&mypixmap);
+ p.fillRect(area, bg);
+ p.drawPixmap(area, lines);
+ p.end();
+ } else {
+ if (gimg.hasAlphaBuffer()) {
+ // Resize to size of image
+ if (mymask.isNull()) {
+ mymask.resize(gimg.width(), gimg.height());
+ mymask.fill( TQt::color1 );
+ }
+ }
+ mypixmap.setMask(TQBitmap()); // Remove reference to my mask
+ copyBlt( &mypixmap, area.left(), area.top(),
+ &lines, off.x(), off.y(), area.width(), area.height() );
+ }
+
+#ifdef Q_WS_QWS
+ if(display_widget) {
+ TQGfx * mygfx=display_widget->graphicsContext();
+ if(mygfx) {
+ double xscale,yscale;
+ xscale=display_widget->width();
+ yscale=display_widget->height();
+ xscale=xscale/((double)mypixmap.width());
+ yscale=yscale/((double)mypixmap.height());
+ double xh,yh;
+ xh=xscale*((double)area.left());
+ yh=yscale*((double)area.top());
+ mygfx->setSource(&mypixmap);
+ mygfx->setAlphaType(TQGfx::IgnoreAlpha);
+ mygfx->stretchBlt(0,0,display_widget->width(),
+ display_widget->height(),mypixmap.width(),
+ mypixmap.height());
+ delete mygfx;
+ }
+ }
+#endif
+}
+
+void TQMoviePrivate::showChanges()
+{
+ if (changed_area.isValid()) {
+ updatePixmapFromImage();
+
+ valid_area = valid_area.unite(changed_area);
+ emit areaChanged(changed_area);
+
+ changed_area.setWidth(-1); // make empty
+ }
+}
+
+// Private as TQImageConsumer
+void TQMoviePrivate::changed(const TQRect& rect)
+{
+ if (!frametimer->isActive())
+ frametimer->start(0);
+ changed_area = changed_area.unite(rect);
+}
+
+void TQMoviePrivate::end()
+{
+ movie_ended = TRUE;
+}
+
+void TQMoviePrivate::preFrameDone()
+{
+ if (stepping > 0) {
+ stepping--;
+ if (!stepping) {
+ frametimer->stop();
+ emit dataStatus( TQMovie::Paused );
+ }
+ } else {
+ waitingForFrameTick = TRUE;
+ restartTimer();
+ }
+}
+void TQMoviePrivate::frameDone()
+{
+ preFrameDone();
+ showChanges();
+ emit dataStatus(TQMovie::EndOfFrame);
+ framenumber++;
+}
+void TQMoviePrivate::frameDone(const TQPoint& p,
+ const TQRect& rect)
+{
+ preFrameDone();
+ const TQImage& gimg = decoder->image();
+ TQPoint point = p - gimg.offset();
+ if (framenumber==0)
+ emit sizeChanged(gimg.size());
+ valid_area = valid_area.unite(TQRect(point,rect.size()));
+ updatePixmapFromImage(point,rect);
+ emit areaChanged(TQRect(point,rect.size()));
+ emit dataStatus(TQMovie::EndOfFrame);
+ framenumber++;
+}
+
+void TQMoviePrivate::restartTimer()
+{
+ if (speed > 0) {
+ int i = frameperiod >= 0 ? frameperiod * 100/speed : 0;
+ if ( i != lasttimerinterval || !frametimer->isActive() ) {
+ lasttimerinterval = i;
+ frametimer->start( i );
+ }
+ } else {
+ frametimer->stop();
+ }
+}
+
+void TQMoviePrivate::setLooping(int nloops)
+{
+ if (loop == -1) { // Only if we don't already know how many loops!
+ if (source && source->rewindable()) {
+ source->enableRewind(TRUE);
+ loop = nloops;
+ } else {
+ // Cannot loop from this source
+ loop = -2;
+ }
+ }
+}
+
+void TQMoviePrivate::setFramePeriod(int milliseconds)
+{
+ // Animation: only show complete frame
+ frameperiod = milliseconds;
+ if (stepping<0 && frameperiod >= 0) restartTimer();
+}
+
+void TQMoviePrivate::setSize(int w, int h)
+{
+ if (mypixmap.width() != w || mypixmap.height() != h) {
+ mypixmap.resize(w, h);
+ emit sizeChanged(TQSize(w, h));
+ }
+}
+
+
+// Private as TQDataSink
+
+int TQMoviePrivate::readyToReceive()
+{
+ // Could pre-fill buffer, but more efficient to just leave the
+ // data back at the source.
+ return (waitingForFrameTick || !stepping || buf_usage || error)
+ ? 0 : buf_size;
+}
+
+void TQMoviePrivate::receive(const uchar* b, int bytecount)
+{
+ if ( bytecount ) empty = FALSE;
+
+ while (bytecount && !waitingForFrameTick && stepping != 0) {
+ int used = decoder->decode(b, bytecount);
+ if (used<=0) {
+ if ( used < 0 ) {
+ error = 1;
+ emit dataStatus(TQMovie::UnrecognizedFormat);
+ }
+ break;
+ }
+ b+=used;
+ bytecount-=used;
+ }
+
+ // Append unused to buffer
+ while (bytecount--) {
+ buffer[buf_w] = *b++;
+ buf_w = (buf_w+1)%buf_size;
+ buf_usage++;
+ }
+}
+
+void TQMoviePrivate::eof()
+{
+ if ( !movie_ended )
+ return;
+
+ if ( empty )
+ emit dataStatus(TQMovie::SourceEmpty);
+
+#ifdef QT_SAVE_MOVIE_HACK
+ save_image = FALSE;
+#endif
+
+ emit dataStatus(TQMovie::EndOfLoop);
+
+ if (loop >= 0) {
+ if (loop) {
+ loop--;
+ if (!loop) return;
+ }
+ delete decoder;
+ decoder = new TQImageDecoder(this);
+ source->rewind();
+ framenumber = 0;
+ movie_ended = FALSE;
+ } else {
+ delete decoder;
+ decoder = 0;
+ if ( buffer ) // Avoid purify complaint
+ delete [] buffer;
+ buffer = 0;
+ emit dataStatus(TQMovie::EndOfMovie);
+#ifdef AVOID_OPEN_FDS
+ if ( source )
+ source->close();
+#endif
+ }
+}
+
+void TQMoviePrivate::pause()
+{
+ if ( stepping ) {
+ stepping = 0;
+ frametimer->stop();
+ emit dataStatus( TQMovie::Paused );
+ }
+}
+
+void TQMoviePrivate::refresh()
+{
+ if (!decoder) {
+ frametimer->stop();
+ return;
+ }
+
+ if (frameperiod < 0 && loop == -1) {
+ // Only show changes if probably not an animation
+ showChanges();
+ }
+
+ if (!buf_usage) {
+ frametimer->stop();
+ }
+
+ waitingForFrameTick = FALSE;
+ flushBuffer();
+}
+
+///////////////// End of Private /////////////////
+
+
+
+
+
+/*!
+ Constructs a null TQMovie. The only interesting thing to do with
+ such a movie is to assign another movie to it.
+
+ \sa isNull()
+*/
+TQMovie::TQMovie()
+{
+ d = new TQMoviePrivate();
+}
+
+/*!
+ Constructs a TQMovie with an external data source. You should later
+ call pushData() to send incoming animation data to the movie.
+
+ The \a bufsize argument sets the maximum amount of data the movie
+ will transfer from the data source per event loop. The lower this
+ value, the better interleaved the movie playback will be with
+ other event processing, but the slower the overall processing will
+ be.
+
+ \sa pushData()
+*/
+TQMovie::TQMovie(int bufsize)
+{
+ d = new TQMoviePrivate(0, this, bufsize);
+}
+
+/*!
+ Returns the maximum amount of data that can currently be pushed
+ into the movie by a call to pushData(). This is affected by the
+ initial buffer size, but varies as the movie plays and data is
+ consumed.
+*/
+int TQMovie::pushSpace() const
+{
+ return d->readyToReceive();
+}
+
+/*!
+ Pushes \a length bytes from \a data into the movie. \a length must
+ be no more than the amount returned by pushSpace() since the
+ previous call to pushData().
+*/
+void TQMovie::pushData(const uchar* data, int length)
+{
+ d->receive(data,length);
+}
+
+#ifdef Q_WS_QWS // ##### Temporary performance experiment
+/*!
+ \internal
+*/
+void TQMovie::setDisplayWidget(TQWidget * w)
+{
+ d->display_widget=w;
+}
+#endif
+
+/*!
+ Constructs a TQMovie that reads an image sequence from the given
+ data source, \a src. The source must be allocated dynamically,
+ because TQMovie will take ownership of it and will destroy it when
+ the movie is destroyed. The movie starts playing as soon as event
+ processing continues.
+
+ The \a bufsize argument sets the maximum amount of data the movie
+ will transfer from the data source per event loop. The lower this
+ value, the better interleaved the movie playback will be with
+ other event processing, but the slower the overall processing will
+ be.
+*/
+TQMovie::TQMovie(TQDataSource* src, int bufsize)
+{
+ d = new TQMoviePrivate(src, this, bufsize);
+}
+
+/*!
+ Constructs a TQMovie that reads an image sequence from the file, \a
+ fileName.
+
+ The \a bufsize argument sets the maximum amount of data the movie
+ will transfer from the data source per event loop. The lower this
+ value, the better interleaved the movie playback will be with
+ other event processing, but the slower the overall processing will
+ be.
+*/
+TQMovie::TQMovie(const TQString &fileName, int bufsize)
+{
+ TQFile* file = new TQFile(fileName);
+ if ( !fileName.isEmpty() )
+ file->open(IO_ReadOnly);
+ d = new TQMoviePrivate(new TQIODeviceSource(file, bufsize), this, bufsize);
+}
+
+/*!
+ Constructs a TQMovie that reads an image sequence from the byte
+ array, \a data.
+
+ The \a bufsize argument sets the maximum amount of data the movie
+ will transfer from the data source per event loop. The lower this
+ value, the better interleaved the movie playback will be with
+ other event processing, but the slower the overall processing will
+ be.
+*/
+TQMovie::TQMovie(TQByteArray data, int bufsize)
+{
+ TQBuffer* buffer = new TQBuffer(data);
+ buffer->open(IO_ReadOnly);
+ d = new TQMoviePrivate(new TQIODeviceSource(buffer, bufsize), this, bufsize);
+}
+
+/*!
+ Constructs a movie that uses the same data as movie \a movie.
+ TQMovies use explicit sharing, so operations on the copy will
+ affect both.
+*/
+TQMovie::TQMovie(const TQMovie& movie)
+{
+ d = movie.d;
+ d->ref();
+}
+
+/*!
+ Destroys the TQMovie. If this is the last reference to the data of
+ the movie, the data is deallocated.
+*/
+TQMovie::~TQMovie()
+{
+ if (d->deref()) delete d;
+}
+
+/*!
+ Returns TRUE if the movie is null; otherwise returns FALSE.
+*/
+bool TQMovie::isNull() const
+{
+ return d->isNull();
+}
+
+/*!
+ Makes this movie use the same data as movie \a movie. TQMovies use
+ explicit sharing.
+*/
+TQMovie& TQMovie::operator=(const TQMovie& movie)
+{
+ movie.d->ref();
+ if (d->deref()) delete d;
+ d = movie.d;
+ return *this;
+}
+
+
+/*!
+ Sets the background color of the pixmap to \a c. If the background
+ color isValid(), the pixmap will never have a mask because the
+ background color will be used in transparent regions of the image.
+
+ \sa backgroundColor()
+*/
+void TQMovie::setBackgroundColor(const TQColor& c)
+{
+ d->bg = c;
+}
+
+/*!
+ Returns the background color of the movie set by
+ setBackgroundColor().
+*/
+const TQColor& TQMovie::backgroundColor() const
+{
+ return d->bg;
+}
+
+/*!
+ Returns the area of the pixmap for which pixels have been
+ generated.
+*/
+const TQRect& TQMovie::getValidRect() const
+{
+ return d->valid_area;
+}
+
+/*!
+ Returns the current frame of the movie, as a TQPixmap. It is not
+ generally useful to keep a copy of this pixmap. It is better to
+ keep a copy of the TQMovie and get the framePixmap() only when
+ needed for drawing.
+
+ \sa frameImage()
+*/
+const TQPixmap& TQMovie::framePixmap() const
+{
+ return d->mypixmap;
+}
+
+/*!
+ Returns the current frame of the movie, as a TQImage. It is not
+ generally useful to keep a copy of this image. Also note that you
+ must not call this function if the movie is finished(), since by
+ then the image will not be available.
+
+ \sa framePixmap()
+*/
+const TQImage& TQMovie::frameImage() const
+{
+ return d->decoder->image();
+}
+
+/*!
+ Returns the number of steps remaining after a call to step(). If
+ the movie is paused, steps() returns 0. If it's running normally
+ or is finished, steps() returns a negative number.
+*/
+int TQMovie::steps() const
+{
+ return d->stepping;
+}
+
+/*!
+ Returns the number of times EndOfFrame has been emitted since the
+ start of the current loop of the movie. Thus, before any
+ EndOfFrame has been emitted the value will be 0; within slots
+ processing the first signal, frameNumber() will be 1, and so on.
+*/
+int TQMovie::frameNumber() const { return d->framenumber; }
+
+/*!
+ Returns TRUE if the image is paused; otherwise returns FALSE.
+*/
+bool TQMovie::paused() const
+{
+ return d->stepping == 0;
+}
+
+/*!
+ Returns TRUE if the image is no longer playing: this happens when
+ all loops of all frames are complete; otherwise returns FALSE.
+*/
+bool TQMovie::finished() const
+{
+ return !d->decoder;
+}
+
+/*!
+ Returns TRUE if the image is not single-stepping, not paused, and
+ not finished; otherwise returns FALSE.
+*/
+bool TQMovie::running() const
+{
+ return d->stepping<0 && d->decoder;
+}
+
+/*!
+ Pauses the progress of the animation.
+
+ \sa unpause()
+*/
+void TQMovie::pause()
+{
+ d->pause();
+}
+
+/*!
+ Unpauses the progress of the animation.
+
+ \sa pause()
+*/
+void TQMovie::unpause()
+{
+ if ( d->stepping >= 0 ) {
+ if (d->isNull())
+ return;
+ d->stepping = -1;
+ d->restartTimer();
+ }
+}
+
+/*!
+ \overload
+
+ Steps forward, showing \a steps frames, and then pauses.
+*/
+void TQMovie::step(int steps)
+{
+ if (d->isNull())
+ return;
+ d->stepping = steps;
+ d->frametimer->start(0);
+ d->waitingForFrameTick = FALSE; // Full speed ahead!
+}
+
+/*!
+ Steps forward 1 frame and then pauses.
+*/
+void TQMovie::step()
+{
+ step(1);
+}
+
+/*!
+ Rewinds the movie to the beginning. If the movie has not been
+ paused, it begins playing again.
+*/
+void TQMovie::restart()
+{
+ if (d->isNull())
+ return;
+ if (d->source->rewindable()) {
+ d->source->enableRewind(TRUE);
+ d->source->rewind();
+ int s = d->stepping;
+ d->init(TRUE);
+ if ( s>0 )
+ step(s);
+ else if ( s==0 )
+ pause();
+ }
+}
+
+/*!
+ Returns the movie's play speed as a percentage. The default is 100
+ percent.
+
+ \sa setSpeed()
+*/
+int TQMovie::speed() const
+{
+ return d->speed;
+}
+
+/*!
+ Sets the movie's play speed as a percentage, to \a percent. This
+ is a percentage of the speed dictated by the input data format.
+ The default is 100 percent.
+*/
+void TQMovie::setSpeed(int percent)
+{
+ int oldspeed = d->speed;
+ if ( oldspeed != percent && percent >= 0 ) {
+ d->speed = percent;
+ // Restart timer only if really needed
+ if (d->stepping < 0) {
+ if ( !percent || !oldspeed // To or from zero
+ || oldspeed*4 / percent > 4 // More than 20% slower
+ || percent*4 / oldspeed > 4 // More than 20% faster
+ )
+ d->restartTimer();
+ }
+ }
+}
+
+/*!
+ Connects the \a{receiver}'s \a member of type \c{void member(const
+ TQSize&)} so that it is signalled when the movie changes size.
+
+ Note that due to the explicit sharing of TQMovie objects, these
+ connections persist until they are explicitly disconnected with
+ disconnectResize() or until \e every shared copy of the movie is
+ deleted.
+*/
+void TQMovie::connectResize(TQObject* receiver, const char *member)
+{
+ TQObject::connect(d, SIGNAL(sizeChanged(const TQSize&)), receiver, member);
+}
+
+/*!
+ Disconnects the \a{receiver}'s \a member (or all members if \a
+ member is zero) that were previously connected by connectResize().
+*/
+void TQMovie::disconnectResize(TQObject* receiver, const char *member)
+{
+ TQObject::disconnect(d, SIGNAL(sizeChanged(const TQSize&)), receiver, member);
+}
+
+/*!
+ Connects the \a{receiver}'s \a member of type \c{void member(const
+ TQRect&)} so that it is signalled when an area of the framePixmap()
+ has changed since the previous frame.
+
+ Note that due to the explicit sharing of TQMovie objects, these
+ connections persist until they are explicitly disconnected with
+ disconnectUpdate() or until \e every shared copy of the movie is
+ deleted.
+*/
+void TQMovie::connectUpdate(TQObject* receiver, const char *member)
+{
+ TQObject::connect(d, SIGNAL(areaChanged(const TQRect&)), receiver, member);
+}
+
+/*!
+ Disconnects the \a{receiver}'s \a member (or all members if \q
+ member is zero) that were previously connected by connectUpdate().
+*/
+void TQMovie::disconnectUpdate(TQObject* receiver, const char *member)
+{
+ TQObject::disconnect(d, SIGNAL(areaChanged(const TQRect&)), receiver, member);
+}
+
+/*!
+ Connects the \a{receiver}'s \a member, of type \c{void
+ member(int)} so that it is signalled when the movie changes
+ status. The status codes are negative for errors and positive for
+ information.
+
+ \table
+ \header \i Status Code \i Meaning
+ \row \i TQMovie::SourceEmpty
+ \i signalled if the input cannot be read.
+ \row \i TQMovie::UnrecognizedFormat
+ \i signalled if the input data is unrecognized.
+ \row \i TQMovie::Paused
+ \i signalled when the movie is paused by a call to paused()
+ or by after \link step() stepping \endlink pauses.
+ \row \i TQMovie::EndOfFrame
+ \i signalled at end-of-frame after any update and Paused signals.
+ \row \i TQMovie::EndOfLoop
+ \i signalled at end-of-loop, after any update signals,
+ EndOfFrame - but before EndOfMovie.
+ \row \i TQMovie::EndOfMovie
+ \i signalled when the movie completes and is not about to loop.
+ \endtable
+
+ More status messages may be added in the future, so a general test
+ for errors would test for negative.
+
+ Note that due to the explicit sharing of TQMovie objects, these
+ connections persist until they are explicitly disconnected with
+ disconnectStatus() or until \e every shared copy of the movie is
+ deleted.
+*/
+void TQMovie::connectStatus(TQObject* receiver, const char *member)
+{
+ TQObject::connect(d, SIGNAL(dataStatus(int)), receiver, member);
+}
+
+/*!
+ Disconnects the \a{receiver}'s \a member (or all members if \a
+ member is zero) that were previously connected by connectStatus().
+*/
+void TQMovie::disconnectStatus(TQObject* receiver, const char *member)
+{
+ TQObject::disconnect(d, SIGNAL(dataStatus(int)), receiver, member);
+}
+
+
+#include "qmovie.moc"
+
+#endif // QT_NO_MOVIE