qpeapplication.cpp

Trolltech公司发布的图形界面操作系统。可在qt-embedded-2.3.10平台上编译为嵌入式图形界面操作系统。

	pal.setColor( QPalette::Disabled, QColorGroup::Foreground, QColor(val));
    } else {
	pal.setColor( QPalette::Disabled, QColorGroup::Foreground,
	    pal.color(QPalette::Active, QColorGroup::Background).dark() );
    }

    setPalette( pal, TRUE );

    color = config.readEntry( "AlternateBase", "#EEF5D6" );
    if ( color[0] == '#' )
	style().setExtendedBrush(QStyle::AlternateBase, QColor(color));
    else {
	QPixmap pix;
#ifdef SIZE_WALLPAPER_TO_DESKTOP_SIZE  // Disabled at the moment
	QSize siz = qApp->desktop()->size();
	int wid = siz.width(), h = siz.height();
	pix = Resource::loadImage(color).smoothScale(wid,h);
#endif
	pix = Resource::loadPixmap(color);
	style().setExtendedBrush(QStyle::AlternateBase, QBrush(QColor("#EEF5D6"),pix));
    }

    // Unpublished feature for now, since current windows will be broken.
    // Need to go through all windows and poke QScrollViews to updateScrollbars.
    extern bool qt_left_hand_scrollbars;
    int lh = config.readNumEntry( "LeftHand", 0 );
    qt_left_hand_scrollbars = lh;

    // Window Decoration
    QString dec = config.readEntry( "Decoration", "Qtopia" );
    QString decTheme = config.readEntry( "DecorationTheme", "" );
    if ( dec != d->decorationName || !decTheme.isEmpty()) {
	qwsSetDecoration( new QPEDecoration( dec ) );
	d->decorationName = dec;
	d->decorationTheme = decTheme;
    }

    // Font
    QString ff = config.readEntry( "FontFamily", font().family() );
    int fs = config.readNumEntry( "FontSize", font().pointSize() );
    QFont fn(ff,fs);

    // Icon size
#ifndef QPE_FONT_HEIGHT_TO_ICONSIZE
#define QPE_FONT_HEIGHT_TO_ICONSIZE(x) (x+1)
#endif
    int is = config.readNumEntry( "IconSize", -1 );
    if ( is < 0 ) {
	QFontMetrics fm(fn);
	config.writeEntry( "IconSize", QPE_FONT_HEIGHT_TO_ICONSIZE(fm.height()) );
	config.write();
    }

    setFont( fn, TRUE );

#ifdef QTOPIA_PHONE
    if ( styleName == "phonestyle" || styleName == "Qtopia" ) {
	QString path = themeCfg.readEntry("WidgetConfig");
	((PhoneStyle*)&style())->setTheme(!!path ? themeDir+path : path);
    }
#endif
#endif
}

void QPEApplication::systemMessage( const QCString &msg, const QByteArray &data)
{
#ifdef Q_WS_QWS
    QDataStream stream( data, IO_ReadOnly );
    if ( msg == "linkChanged(QString)" ) {
	QString lf;
	stream >> lf;
	emit linkChanged( lf );
    } else if ( msg == "applyStyle()" ) {
	applyStyle();
    } else if ( msg == "setScreenSaverInterval(int)" ) {
	if ( type() == GuiServer ) {
	    int time;
	    stream >> time;
	    setScreenSaverInterval(time);
	}
    } else if ( msg == "setScreenSaverIntervals(int,int,int)" ) {
	if ( type() == GuiServer ) {
	    int t1,t2,t3;
	    stream >> t1 >> t2 >> t3;
	    setScreenSaverIntervals(t1,t2,t3);
	}
    } else if ( msg == "setBacklight(int)" ) {
	if ( type() == GuiServer ) {
	    int bright;
	    stream >> bright;
	    setBacklight(bright);
	}
    } else if ( msg == "setDefaultRotation(int)" ) {
	int r;
	stream >> r;
	if ( type() == GuiServer )
	    setDefaultRotation(r);
# if QT_VERSION >= 234
	int t = 0;
	switch ( r ) {
	    case 90:
		t = 1;
		break;
	    case 180:
		t = 2;
		break;
	    case 270:
		t = 3;
		break;
	}
	QWSDisplay::setTransformation( t );
# endif
    } else if ( msg == "shutdown()" ) {
	if ( type() == GuiServer )
	    shutdown();
    } else if ( msg == "quit()" ) {
	if ( type() != GuiServer )
	    tryQuit();
    } else if ( msg == "close()" ) {
	if ( type() != GuiServer )
	    hideOrQuit();
    } else if ( msg == "forceQuit()" ) {
	if ( type() != GuiServer )
	    quit();
    } else if ( msg == "restart()" ) {
	if ( type() == GuiServer )
	    restart();
    } else if ( msg == "grabKeyboard(QString)" ) {
	QString who;
	stream >> who;
	if ( who.isEmpty() )
	    d->kbgrabber = 0;
	else if ( who != d->appName )
	    d->kbgrabber = 1;
	else
	    d->kbgrabber = 2;
    } else if ( msg == "language(QString)" ) {
	if ( type() == GuiServer ) {
	    QString l;
	    stream >> l;
	    l += ".utf8";
	    QString cl = getenv("LANG");
	    if ( cl != l ) {
		if ( l.isNull() )
		    unsetenv( "LANG" );
		else
		    setenv( "LANG", l.latin1(), 1 );
		restart();
	    }
	}
    } else if ( msg == "timeChange(QString)" ) {
	// doesn't make sense to do this if quicklauncher,
	// and may steal call to something that needs it.
	if (d->appName != "quicklauncher") {
	    d->skiptimechanged++;
	    QString t;
	    stream >> t;
	    if ( t.isNull() )
		unsetenv( "TZ" );
	    else
		setenv( "TZ", t.latin1(), 1 );
	    // emit the signal so everyone else knows...
	    emit timeChanged();
	}
    } else if ( msg =="categoriesChanged()" ) {
	emit categoriesChanged();
    } else if ( msg == "addAlarm(QDateTime,QCString,QCString,int)" ) {
	if ( type() == GuiServer ) {
	    QDateTime when;
	    QCString channel, message;
	    int data;
	    stream >> when >> channel >> message >> data;
	    AlarmServer::addAlarm( when, channel, message, data );
	}
    } else if ( msg == "deleteAlarm(QDateTime,QCString,QCString,int)" ) {
	if ( type() == GuiServer ) {
	    QDateTime when;
	    QCString channel, message;
	    int data;
	    stream >> when >> channel >> message >> data;
	    AlarmServer::deleteAlarm( when, channel, message, data );
	}
    } else if ( msg == "clockChange(bool)" ) {
	int tmp;
	stream >> tmp;
	emit clockChanged( tmp );
    } else if ( msg == "weekChange(bool)" ) {
	int tmp;
	stream >> tmp;
	emit weekChanged( tmp );
    } else if ( msg == "setDateFormat(DateFormat)" ) {
	::DateFormat tmp;
	stream >> tmp;
	emit dateFormatChanged( tmp );
    } else if ( msg == "setVolume(int,int)" ) {
	if ( type() == GuiServer ) {
	    int t,v;
	    stream >> t >> v;
	    setVolume(t,v);
	}
	emit volumeChanged( qtopia_muted );
    } else if ( msg == "volumeChange(bool)" ) {
        stream >> qtopia_muted;
	if ( type() == GuiServer ) {
            {
            Config cfg("Sound");
            cfg.setGroup("System");
            cfg.writeEntry("Muted",qtopia_muted);
            }
	    setVolume();
        }
	emit volumeChanged( qtopia_muted );
    } else if ( msg == "flush()" ) {
	emit flush();
	// we need to tell the desktop
#ifndef QT_NO_COP
	QCopEnvelope e( "QPE/Desktop", "flushDone(QString)" );
	e << d->appName;
#endif
    } else if ( msg == "reload()" ) {
	// Reload anything stored in files...
	applyStyle();
	if ( type() == GuiServer ) {
	    setVolume();
	    setBacklight(-1);
	}
	// App-specifics...
	emit reload();
    } else if ( msg == "setScreenSaverMode(int)" ) {
	if ( type() == GuiServer ) {
	    int old = disable_suspend;
	    stream >> disable_suspend;
	    qwsServer->restartScreenSaverTimer();
	}
    } else if ( msg == "getMarkedText()" ) {
	if ( type() == GuiServer ) {
	    const ushort unicode = 'C'-'@';
	    const int scan = Key_C;
	    qwsServer->processKeyEvent( unicode, scan, ControlButton, TRUE, FALSE );
	    qwsServer->processKeyEvent( unicode, scan, ControlButton, FALSE, FALSE );
	}
    } else if ( msg == "newChannel(QString)") {
	QString myChannel = "QPE/Application/" + d->appName;
	QString channel;
	stream >> channel;
	if (channel == myChannel) {
	    processQCopFile();
	    d->sendQCopQ();
	}
    } else if ( msg == "wordsChanged(QString,int)" ) {
	QString dictname;
	int pid;
	stream >> dictname >> pid;
	void qtopia_reload_words(const QString& dictname); // global.cpp
	if ( pid != getpid() ) {
	    qDebug("Reload words '%s' (I am %d, not %d)",
		dictname.latin1(),getpid(),pid);
	    qtopia_reload_words(dictname);
	}
    } else if ( msg == "RecoverMemory()" ) {
	if (qApp->type() != GuiServer) {
	    QPixmapCache::clear();
	}
    } 
#ifdef QTOPIA_PHONE
    else if ( msg == "updateContextBar()" ) {
	if (activeWindow() && focusWidget()) {
	    ContextKeyManager::instance()->updateContextLabels();
	}
    }
#endif
#else
    Q_UNUSED( msg );	
    Q_UNUSED( data );	
#endif
}

/*!
  \internal
*/
bool QPEApplication::raiseAppropriateWindow()
{
    bool r=FALSE;

    // 1. Raise the main widget
    QWidget *top = d->qpe_main_widget;
    if ( !top ) top = mainWidget();

    if ( top && d->keep_running ) {
	if ( top->isVisible() )
	    r = TRUE;
	else if (d->preloaded) {
	    // We are preloaded and not visible.. pretend we just started..
#ifndef QT_NO_COP
	    QCopEnvelope e("QPE/System", "fastAppShowing(QString)");
	    e << d->appName;
#endif
	}

	d->show_mx(top,d->nomaximize, d->appName);
	top->raise();
    }

    QWidget *topm = activeModalWidget();

    // 2. Raise any parentless widgets (except top and topm, as they
    //     are raised before and after this loop).  Order from most
    //     recently raised as deepest to least recently as top, so
    //     that repeated calls cycle through widgets.
    QWidgetList *list = topLevelWidgets();
    if ( list ) {
	bool foundlast = FALSE;
	QWidget* topsub = 0;
	if ( d->lastraised ) {
	    for (QWidget* w = list->first(); w; w = list->next()) {
		if ( !w->parentWidget() && w != top && w != topm && w->isVisible() && !w->isDesktop() ) {
		    if ( w == d->lastraised )
			foundlast = TRUE;
		    if ( foundlast ) {
			w->raise();
			topsub = w;
		    }
		}
	    }
	}
	for (QWidget* w = list->first(); w; w = list->next()) {
	    if ( !w->parentWidget() && w != top && w != topm && w->isVisible() && !w->isDesktop() ) {
		if ( w == d->lastraised )
		    break;
		w->raise();
		topsub = w;
	    }
	}
	d->lastraised = topsub;
	delete list;
    }

    // 3. Raise the active modal widget.
    if ( topm && topm != top ) {
	topm->show();
	topm->raise();
	// If we haven't already handled the fastAppShowing message
	if (!top && d->preloaded) {
#ifndef QT_NO_COP
	    QCopEnvelope e("QPE/System", "fastAppShowing(QString)");
	    e << d->appName;
#endif           
	}
	r = FALSE;
    }

    return r;
}

void QPEApplication::pidMessage( const QCString &msg, const QByteArray & data)
{
#ifdef Q_WS_QWS
    if ( msg == "quit()" ) {
	tryQuit();
    } else if ( msg == "quitIfInvisible()" ) {
	if ( d->qpe_main_widget && !d->qpe_main_widget->isVisible() )
	    quit();
    } else if ( msg == "close()" ) {
	hideOrQuit();
    } else if ( msg == "disablePreload()" ) {
	d->preloaded = FALSE;
	d->keep_running = TRUE;
	/* so that quit will quit */
    } else if ( msg == "enablePreload()" ) {
	if (d->qpe_main_widget) {
	    d->preloaded = TRUE;
	    d->forceshow = FALSE;
	}
	d->keep_running = TRUE;
	/* so next quit won't quit */
    } else if ( msg == "raise()" ) {
	d->keep_running = TRUE;
	d->notbusysent = FALSE;
	raiseAppropriateWindow();
	// Tell the system we're still chugging along...
#ifndef QT_NO_COP
	QCopEnvelope e("QPE/System", "appRaised(QString)");
	e << d->appName;
#endif
    } else if ( msg == "flush()" ) {
	emit flush();
	// we need to tell the desktop
#ifndef QT_NO_COP
	QCopEnvelope e( "QPE/Desktop", "flushDone(QString)" );
	e << d->appName;
#endif
    } else if ( msg == "reload()" ) {
	emit reload();
    } else if ( msg == "setDocument(QString)" ) {
	d->keep_running = TRUE;
	QDataStream stream( data, IO_ReadOnly );
	QString doc;
	stream >> doc;
	QWidget *mw = mainWidget();
	if ( !mw )
	    mw = d->qpe_main_widget;
	if ( mw )
	    Global::setDocument( mw, doc );
    } else if ( msg == "timeChange(QString)" ) {
	// Same as the QPE/System message
	if ( d->skiptimechanged ) {
	    // Was handled in pidMessage()
	    // (ie. we must offer TimeMonitor service)
	    --d->skiptimechanged;
	} else {
	    QDataStream stream( data, IO_ReadOnly );
	    QString t;
	    stream >> t;
	    if ( t.isNull() )
		unsetenv( "TZ" );
	    else
		setenv( "TZ", t.latin1(), 1 );
	    // emit the signal so everyone else knows...
	    emit timeChanged();
	}
    } else if ( msg == "QPEProcessQCop()") {
	processQCopFile();
	d->sendQCopQ();
    } else {
	bool p = d->keep_running;
	d->keep_running = FALSE;
	emit appMessage( msg, data);
	if ( d->keep_running ) {
	    d->notbusysent = FALSE;
	    raiseAppropriateWindow();
	    if ( !p ) {
		// Tell the system we're still chugging along...
#ifndef QT_NO_COP
		QCopEnvelope e("QPE/System", "appRaised(QString)");
		e << d->appName;
#endif
	    }
	}
	if ( p )
	    d->keep_running = p;
    }
#else
    Q_UNUSED( msg );	
    Q_UNUSED( data );	
#endif
}



/*!
  Sets widget \a mw as the mainWidget() and shows it. For small windows,
  consider passing TRUE for \a nomaximize rather than the default FALSE.

  \sa showMainDocumentWidget()
*/
void QPEApplication::showMainWidget( QWidget* mw, bool nomaximize )
{
    d->show(mw,nomaximize);
}

/*!
  Sets widget \a mw as the mainWidget() and shows it. For small windows,
  consider passing TRUE for \a nomaximize rather than the default FALSE.

  This calls designates the application as
  a \link docwidget.html document-oriented\endlink application.

  The \a mw widget \e must have this slot: setDocument(const QString&).

  \sa showMainWidget()
*/
void QPEApplication::showMainDocumentWidget( QWidget* mw, bool nomaximize )
{
#ifdef Q_WS_QWS
    if ( mw && argc() == 2 )
	Global::setDocument( mw, QString::fromUtf8(argv()[1]) );
#endif

    d->show(mw,nomaximize);
}


/*!
    If an application is started via a \