You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
345 lines
14 KiB
345 lines
14 KiB
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
|
|
<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/examples/movies/movies.doc:4 -->
|
|
<html>
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
|
|
<title>Movies or the Story of the Animated GIF file</title>
|
|
<style type="text/css"><!--
|
|
fn { margin-left: 1cm; text-indent: -1cm; }
|
|
a:link { color: #004faf; text-decoration: none }
|
|
a:visited { color: #672967; text-decoration: none }
|
|
body { background: #ffffff; color: black; }
|
|
--></style>
|
|
</head>
|
|
<body>
|
|
|
|
<table border="0" cellpadding="0" cellspacing="0" width="100%">
|
|
<tr bgcolor="#E5E5E5">
|
|
<td valign=center>
|
|
<a href="index.html">
|
|
<font color="#004faf">Home</font></a>
|
|
| <a href="classes.html">
|
|
<font color="#004faf">All Classes</font></a>
|
|
| <a href="mainclasses.html">
|
|
<font color="#004faf">Main Classes</font></a>
|
|
| <a href="annotated.html">
|
|
<font color="#004faf">Annotated</font></a>
|
|
| <a href="groups.html">
|
|
<font color="#004faf">Grouped Classes</font></a>
|
|
| <a href="functions.html">
|
|
<font color="#004faf">Functions</font></a>
|
|
</td>
|
|
<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>Movies or the Story of the Animated GIF file</h1>
|
|
|
|
|
|
<p>
|
|
The Movies example displays MNG and animated GIF files using the <a href="tqmovie.html">TQMovie</a> and
|
|
<a href="tqlabel.html">TQLabel</a> classes.
|
|
<p> The movies will only read an animated GIF if GIF reading was enabled when TQt was built.
|
|
<p> <hr>
|
|
<p> Main:
|
|
<p> <pre>/****************************************************************************
|
|
** $Id: qt/main.cpp 3.3.8 edited Jan 11 14:37 $
|
|
**
|
|
** Copyright (C) 1992-2007 Trolltech ASA. All rights reserved.
|
|
**
|
|
** This file is part of an example program for TQt. This example
|
|
** program may be used, distributed and modified without limitation.
|
|
**
|
|
*****************************************************************************/
|
|
|
|
#include <<a href="qapplication-h.html">ntqapplication.h</a>>
|
|
#include <<a href="tqfiledialog-h.html">tqfiledialog.h</a>>
|
|
#include <<a href="qpushbutton-h.html">ntqpushbutton.h</a>>
|
|
#include <<a href="tqlabel-h.html">tqlabel.h</a>>
|
|
#include <<a href="tqpainter-h.html">tqpainter.h</a>>
|
|
#include <<a href="qmessagebox-h.html">ntqmessagebox.h</a>>
|
|
#include <<a href="tqmovie-h.html">tqmovie.h</a>>
|
|
#include <<a href="qvbox-h.html">ntqvbox.h</a>>
|
|
|
|
|
|
class MovieScreen : public <a href="ntqframe.html">TQFrame</a> {
|
|
<a href="metaobjects.html#TQ_OBJECT">TQ_OBJECT</a>
|
|
<a href="tqmovie.html">TQMovie</a> movie;
|
|
<a href="tqstring.html">TQString</a> filename;
|
|
<a href="tqsize.html">TQSize</a> sh;
|
|
|
|
public:
|
|
MovieScreen(const char* fname, TQMovie m, TQWidget* p=0, const char* name=0, WFlags f=0) :
|
|
<a href="ntqframe.html">TQFrame</a>(p, name, f),
|
|
sh(100,100)
|
|
{
|
|
setCaption(fname);
|
|
filename = fname;
|
|
movie = m;
|
|
|
|
// Set a frame around the movie.
|
|
setFrameStyle(TQFrame::WinPanel|TQFrame::Sunken);
|
|
|
|
// No background needed, since we draw on the whole widget.
|
|
<a name="x523"></a> movie.<a href="tqwidget.html#setBackgroundColor">setBackgroundColor</a>(backgroundColor());
|
|
setBackgroundMode(NoBackground);
|
|
|
|
// Get the movie to tell use when interesting things happen.
|
|
<a name="x500"></a> movie.<a href="tqmovie.html#connectUpdate">connectUpdate</a>(this, TQ_SLOT(movieUpdated(const <a href="tqrect.html">TQRect</a>&)));
|
|
<a name="x498"></a> movie.<a href="tqmovie.html#connectResize">connectResize</a>(this, TQ_SLOT(movieResized(const <a href="tqsize.html">TQSize</a>&)));
|
|
<a name="x499"></a> movie.<a href="tqmovie.html#connectStatus">connectStatus</a>(this, TQ_SLOT(movieStatus(int)));
|
|
|
|
setSizePolicy(TQSizePolicy(TQSizePolicy::Expanding,TQSizePolicy::Expanding));
|
|
}
|
|
|
|
<a href="tqsize.html">TQSize</a> sizeHint() const
|
|
{
|
|
return sh;
|
|
}
|
|
|
|
protected:
|
|
|
|
// Draw the contents of the TQFrame - the movie and on-screen-display
|
|
void drawContents(TQPainter* p)
|
|
{
|
|
// Get the current movie frame.
|
|
<a name="x502"></a> <a href="tqpixmap.html">TQPixmap</a> pm = movie.<a href="tqmovie.html#framePixmap">framePixmap</a>();
|
|
|
|
// Get the area we have to draw in.
|
|
<a href="tqrect.html">TQRect</a> r = contentsRect();
|
|
|
|
<a name="x511"></a> if ( !pm.<a href="tqpixmap.html#isNull">isNull</a>() ) {
|
|
// Only rescale is we need to - it can take CPU!
|
|
<a name="x516"></a><a name="x512"></a> if ( r.<a href="tqrect.html#size">size</a>() != pm.<a href="tqpixmap.html#size">size</a>() ) {
|
|
<a href="tqwmatrix.html">TQWMatrix</a> m;
|
|
<a name="x524"></a><a name="x517"></a><a name="x513"></a> m.<a href="tqwmatrix.html#scale">scale</a>((double)r.<a href="tqrect.html#width">width</a>()/pm.<a href="tqpixmap.html#width">width</a>(),
|
|
<a name="x515"></a><a name="x510"></a> (double)r.<a href="tqrect.html#height">height</a>()/pm.<a href="tqpixmap.html#height">height</a>());
|
|
<a name="x514"></a> pm = pm.<a href="tqpixmap.html#xForm">xForm</a>(m);
|
|
}
|
|
|
|
// Draw the [possibly scaled] frame. movieUpdated() below calls
|
|
// repaint with only the changed area, so clipping will ensure we
|
|
// only do the minimum amount of rendering.
|
|
//
|
|
<a name="x519"></a><a name="x518"></a> p->drawPixmap(r.<a href="tqrect.html#x">x</a>(), r.<a href="tqrect.html#y">y</a>(), pm);
|
|
}
|
|
|
|
|
|
// The on-screen display
|
|
|
|
const char* message = 0;
|
|
|
|
<a name="x504"></a> if (movie.<a href="tqmovie.html#paused">paused</a>()) {
|
|
message = "PAUSED";
|
|
<a name="x501"></a> } else if (movie.<a href="tqmovie.html#finished">finished</a>()) {
|
|
message = "THE END";
|
|
<a name="x507"></a> } else if (movie.<a href="tqmovie.html#steps">steps</a>() > 0) {
|
|
message = "FF >>";
|
|
}
|
|
|
|
if (message) {
|
|
// Find a good font size...
|
|
p->setFont(TQFont("Helvetica", 24));
|
|
|
|
<a href="tqfontmetrics.html">TQFontMetrics</a> fm = p->fontMetrics();
|
|
<a name="x496"></a> if ( fm.<a href="tqfontmetrics.html#width">width</a>(message) > r.<a href="tqrect.html#width">width</a>()-10 )
|
|
p->setFont(TQFont("Helvetica", 18));
|
|
|
|
fm = p->fontMetrics();
|
|
if ( fm.<a href="tqfontmetrics.html#width">width</a>(message) > r.<a href="tqrect.html#width">width</a>()-10 )
|
|
p->setFont(TQFont("Helvetica", 14));
|
|
|
|
fm = p->fontMetrics();
|
|
if ( fm.<a href="tqfontmetrics.html#width">width</a>(message) > r.<a href="tqrect.html#width">width</a>()-10 )
|
|
p->setFont(TQFont("Helvetica", 12));
|
|
|
|
fm = p->fontMetrics();
|
|
if ( fm.<a href="tqfontmetrics.html#width">width</a>(message) > r.<a href="tqrect.html#width">width</a>()-10 )
|
|
p->setFont(TQFont("Helvetica", 10));
|
|
|
|
// "Shadow" effect.
|
|
p->setPen(black);
|
|
p->drawText(1, 1, width()-1, height()-1, AlignCenter, message);
|
|
p->setPen(white);
|
|
p->drawText(0, 0, width()-1, height()-1, AlignCenter, message);
|
|
}
|
|
}
|
|
|
|
public slots:
|
|
void restart()
|
|
{
|
|
<a name="x505"></a> movie.<a href="tqmovie.html#restart">restart</a>();
|
|
repaint();
|
|
}
|
|
|
|
void togglePause()
|
|
{
|
|
if ( movie.<a href="tqmovie.html#paused">paused</a>() )
|
|
<a name="x508"></a> movie.<a href="tqmovie.html#unpause">unpause</a>();
|
|
else
|
|
<a name="x503"></a> movie.<a href="tqmovie.html#pause">pause</a>();
|
|
repaint();
|
|
}
|
|
|
|
void step()
|
|
{
|
|
<a name="x506"></a> movie.<a href="tqmovie.html#step">step</a>();
|
|
repaint();
|
|
}
|
|
|
|
void step10()
|
|
{
|
|
movie.<a href="tqmovie.html#step">step</a>(10);
|
|
repaint();
|
|
}
|
|
|
|
private slots:
|
|
void movieUpdated(const <a href="tqrect.html">TQRect</a>& area)
|
|
{
|
|
if (!isVisible())
|
|
show();
|
|
|
|
// The given area of the movie has changed.
|
|
|
|
<a href="tqrect.html">TQRect</a> r = contentsRect();
|
|
|
|
if ( r.<a href="tqrect.html#size">size</a>() != movie.<a href="tqmovie.html#framePixmap">framePixmap</a>().size() ) {
|
|
// Need to scale - redraw whole frame.
|
|
repaint( r );
|
|
} else {
|
|
// Only redraw the changed area of the frame
|
|
repaint( area.<a href="tqrect.html#x">x</a>()+r.<a href="tqrect.html#x">x</a>(), area.<a href="tqrect.html#y">y</a>()+r.<a href="tqrect.html#x">x</a>(),
|
|
area.<a href="tqrect.html#width">width</a>(), area.<a href="tqrect.html#height">height</a>() );
|
|
}
|
|
}
|
|
|
|
void movieResized(const <a href="tqsize.html">TQSize</a>& size)
|
|
{
|
|
// The movie changed size, probably from its initial zero size.
|
|
|
|
int fw = frameWidth();
|
|
<a name="x521"></a><a name="x520"></a> sh = TQSize( size.<a href="tqsize.html#width">width</a>() + fw*2, size.<a href="tqsize.html#height">height</a>() + fw*2 );
|
|
<a href="tqwidget.html#updateGeometry">updateGeometry</a>();
|
|
if ( <a href="tqwidget.html#parentWidget">parentWidget</a>() && parentWidget()->isHidden() )
|
|
<a href="tqwidget.html#parentWidget">parentWidget</a>()->show();
|
|
}
|
|
|
|
void movieStatus(int status)
|
|
{
|
|
// The movie has sent us a status message.
|
|
|
|
if (status < 0) {
|
|
<a href="tqstring.html">TQString</a> msg;
|
|
msg.<a href="tqstring.html#sprintf">sprintf</a>("Could not play movie \"%s\"", (const char*)filename);
|
|
TQMessageBox::<a href="ntqmessagebox.html#warning">warning</a>(this, "movies", msg);
|
|
<a href="tqwidget.html#parentWidget">parentWidget</a>()->close();
|
|
} else if (status == TQMovie::Paused || status == TQMovie::EndOfMovie) {
|
|
<a href="tqwidget.html#repaint">repaint</a>(); // Ensure status text is displayed
|
|
}
|
|
}
|
|
};
|
|
|
|
class MoviePlayer : public <a href="ntqvbox.html">TQVBox</a> {
|
|
MovieScreen* movie;
|
|
public:
|
|
MoviePlayer(const char* fname, TQMovie m, TQWidget* p=0, const char* name=0, WFlags f=0) :
|
|
<a href="ntqvbox.html">TQVBox</a>(p,name,f)
|
|
{
|
|
movie = new MovieScreen(fname, m, this);
|
|
<a href="ntqhbox.html">TQHBox</a>* hb = new <a href="ntqhbox.html">TQHBox</a>(this);
|
|
<a href="ntqpushbutton.html">TQPushButton</a>* btn;
|
|
btn = new <a href="ntqpushbutton.html">TQPushButton</a>("<<", hb);
|
|
<a href="tqobject.html#connect">connect</a>(btn, TQ_SIGNAL(<a href="ntqbutton.html#clicked">clicked</a>()), movie, TQ_SLOT(<a href="tqmovie.html#restart">restart</a>()));
|
|
btn = new <a href="ntqpushbutton.html">TQPushButton</a>("||", hb);
|
|
<a href="tqobject.html#connect">connect</a>(btn, TQ_SIGNAL(<a href="ntqbutton.html#clicked">clicked</a>()), movie, TQ_SLOT(togglePause()));
|
|
btn = new <a href="ntqpushbutton.html">TQPushButton</a>(">|", hb);
|
|
<a href="tqobject.html#connect">connect</a>(btn, TQ_SIGNAL(<a href="ntqbutton.html#clicked">clicked</a>()), movie, TQ_SLOT(<a href="tqmovie.html#step">step</a>()));
|
|
btn = new <a href="ntqpushbutton.html">TQPushButton</a>(">>|", hb);
|
|
<a href="tqobject.html#connect">connect</a>(btn, TQ_SIGNAL(<a href="ntqbutton.html#clicked">clicked</a>()), movie, TQ_SLOT(step10()));
|
|
}
|
|
};
|
|
|
|
|
|
// A TQFileDialog that chooses movies.
|
|
//
|
|
class MovieStarter: public <a href="tqfiledialog.html">TQFileDialog</a> {
|
|
TQ_OBJECT
|
|
public:
|
|
MovieStarter(const char *dir);
|
|
|
|
public slots:
|
|
void startMovie(const <a href="tqstring.html">TQString</a>& filename);
|
|
// TQDialog's method - normally closes the file dialog.
|
|
// We want it left open, and we want Cancel to quit everything.
|
|
void done( int r );
|
|
};
|
|
|
|
|
|
<a name="f258"></a>MovieStarter::MovieStarter(const char *dir)
|
|
: <a href="tqfiledialog.html">TQFileDialog</a>(dir, "*.gif *.mng")
|
|
{
|
|
//behave as in getOpenFilename
|
|
<a href="tqfiledialog.html#setMode">setMode</a>( ExistingFile );
|
|
// When a file is selected, show it as a movie.
|
|
<a href="tqobject.html#connect">connect</a>(this, TQ_SIGNAL(<a href="tqfiledialog.html#fileSelected">fileSelected</a>(const <a href="tqstring.html">TQString</a>&)),
|
|
this, TQ_SLOT(startMovie(const <a href="tqstring.html">TQString</a>&)));
|
|
}
|
|
|
|
|
|
void <a name="f259"></a>MovieStarter::startMovie(const <a href="tqstring.html">TQString</a>& filename)
|
|
{
|
|
if ( filename ) // Start a new movie - have it delete when closed.
|
|
(new MoviePlayer( filename, TQMovie(filename), 0, 0,
|
|
WDestructiveClose))->show();
|
|
}
|
|
|
|
<a name="x495"></a>void MovieStarter::<a href="ntqdialog.html#done">done</a>( int r )
|
|
{
|
|
if (r != Accepted)
|
|
tqApp-><a href="ntqapplication.html#quit">quit</a>(); // end on Cancel
|
|
<a href="ntqdialog.html#setResult">setResult</a>( r );
|
|
|
|
// And don't hide.
|
|
}
|
|
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
<a href="ntqapplication.html">TQApplication</a> a(argc, argv);
|
|
|
|
if (argc > 1) {
|
|
// Commandline mode - show movies given on the command line
|
|
//
|
|
bool gui=TRUE;
|
|
for (int arg=1; arg<argc; arg++) {
|
|
if ( TQString(argv[arg]) == "-i" )
|
|
gui = !gui;
|
|
else if ( gui )
|
|
(void)new MoviePlayer(argv[arg], TQMovie(argv[arg]), 0, 0,
|
|
TQt::WDestructiveClose);
|
|
else
|
|
(void)new MovieScreen(argv[arg], TQMovie(argv[arg]), 0, 0,
|
|
TQt::WDestructiveClose);
|
|
}
|
|
TQObject::<a href="tqobject.html#connect">connect</a>(tqApp, TQ_SIGNAL(<a href="ntqapplication.html#lastWindowClosed">lastWindowClosed</a>()), tqApp, TQ_SLOT(<a href="ntqapplication.html#quit">quit</a>()));
|
|
} else {
|
|
// "GUI" mode - open a chooser for movies
|
|
//
|
|
MovieStarter* fd = new MovieStarter(".");
|
|
<a name="x494"></a> fd-><a href="ntqdialog.html#show">show</a>();
|
|
}
|
|
|
|
// Go!
|
|
return a.<a href="ntqapplication.html#exec">exec</a>();
|
|
}
|
|
|
|
#include "main.moc"
|
|
</pre>
|
|
|
|
<p>See also <a href="examples.html">Examples</a>.
|
|
|
|
<!-- eof -->
|
|
<p><address><hr><div align=center>
|
|
<table width=100% cellspacing=0 border=0><tr>
|
|
<td>Copyright © 2007
|
|
<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
|
|
<td align=right><div align=right>TQt 3.3.8</div>
|
|
</table></div></address></body>
|
|
</html>
|