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# qapplication.h

This is the verbatim text of the qapplication.h include file. It is provided only for illustration; the copyright remains with Trolltech.

```/****************************************************************************
** \$Id: qt/qapplication.h   3.3.8   edited Jan 16 10:54 \$
**
** Definition of QApplication class
**
** Created : 931107
**
**
** This file is part of the kernel module of the Qt GUI Toolkit.
**
** as defined by Trolltech ASA of Norway and appearing in the file
** LICENSE.QPL included in the packaging of this file.
**
** This file may be distributed and/or modified under the terms of the
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
** licenses may use this file in accordance with the Qt Commercial License
** Agreement provided with the Software.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
** See http://www.trolltech.com/qpl/ for QPL licensing information.
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/

#ifndef QAPPLICATION_H
#define QAPPLICATION_H

#ifndef QT_H
#include "qdesktopwidget.h"
#include "qasciidict.h"
#include "qpalette.h"
#include "qtranslator.h"
#include "qstrlist.h"
#include "qstringlist.h"
#endif // QT_H

class QSessionManager;
class QStyle;
class QTranslator;
class QEventLoop;
#if defined(Q_WS_QWS)
class QWSDecoration;
#endif

class QMutex;

class QApplication;
extern Q_EXPORT QApplication *qApp;		// global application object

class Q_EXPORT QApplication : public QObject
{
Q_OBJECT
public:
QApplication( int &argc, char **argv );
QApplication( int &argc, char **argv, bool GUIenabled );
enum Type { Tty, GuiClient, GuiServer };
QApplication( int &argc, char **argv, Type );
#if defined(Q_WS_X11)
QApplication( Display* dpy, HANDLE visual = 0, HANDLE cmap = 0 );
QApplication( Display *dpy, int argc, char **argv,
HANDLE visual = 0, HANDLE cmap= 0 );
#endif
virtual ~QApplication();

int		    argc()	const;
char	  **argv()	const;

Type type() const;

#ifndef QT_NO_STYLE
static QStyle  &style();
static void	    setStyle( QStyle* );
static QStyle*  setStyle( const QString& );
#endif
#ifndef Q_QDOC
enum ColorMode { NormalColors, CustomColors };
static ColorMode colorMode();
static void      setColorMode( QApplication::ColorMode );
#endif

enum ColorSpec { NormalColor=0, CustomColor=1, ManyColor=2 };
static int	     colorSpec();
static void      setColorSpec( int );
#ifndef QT_NO_CURSOR
static QCursor  *overrideCursor();
static void	     setOverrideCursor( const QCursor &, bool replace=FALSE );
static void	     restoreOverrideCursor();
#endif
static bool	     hasGlobalMouseTracking();
static void	     setGlobalMouseTracking( bool enable );
#ifndef QT_NO_PALETTE
static QPalette  palette( const QWidget* = 0 );
static void	     setPalette( const QPalette &, bool informWidgets=FALSE,
const char* className = 0 );
#endif
static QFont     font( const QWidget* = 0 );
static void	     setFont( const QFont &, bool informWidgets=FALSE,
const char* className = 0 );
static QFontMetrics fontMetrics();

QWidget	    *mainWidget()  const;
virtual void     setMainWidget( QWidget * );
virtual void     polish( QWidget * );

static QWidgetList *allWidgets();
static QWidgetList *topLevelWidgets();

static QDesktopWidget   *desktop();

static QWidget     *activePopupWidget();
static QWidget     *activeModalWidget();
#ifndef QT_NO_CLIPBOARD
static QClipboard  *clipboard();
#endif
QWidget	       *focusWidget() const;
QWidget	       *activeWindow() const;

static QWidget  *widgetAt( int x, int y, bool child=FALSE );
static QWidget  *widgetAt( const QPoint &, bool child=FALSE );

static QEventLoop *eventLoop();

int		     exec();
void	     processEvents();
void	     processEvents( int maxtime );
void	     processOneEvent();
bool	     hasPendingEvents();
int		     enter_loop();
void	     exit_loop();
int		     loopLevel() const;
static void	     exit( int retcode=0 );

static bool	     sendEvent( QObject *receiver, QEvent *event );
static void	     postEvent( QObject *receiver, QEvent *event );
static void	     sendPostedEvents( QObject *receiver, int event_type );
static void	     sendPostedEvents();

static void      removePostedEvents( QObject *receiver );

virtual bool     notify( QObject *, QEvent * );

static bool	     startingUp();
static bool	     closingDown();

static void	     flushX();
static void flush();
static void	     syncX();

static void	     beep();

#ifndef QT_NO_TRANSLATION
# ifndef QT_NO_TEXTCODEC
void	     setDefaultCodec( QTextCodec * );
QTextCodec*	     defaultCodec() const;
# endif
void	     installTranslator( QTranslator * );
void	     removeTranslator( QTranslator * );
#endif
enum Encoding { DefaultCodec, UnicodeUTF8 };
QString	     translate( const char * context,
const char * key,
const char * comment = 0,
Encoding encoding = DefaultCodec ) const;
#ifndef QT_NO_DIR
QString   applicationDirPath();
QString   applicationFilePath();
#endif
#ifndef QT_NO_PALETTE
// obsolete functions
static void      setWinStyleHighlightColor( const QColor &c ) {
QPalette p( palette() );
p.setColor( QColorGroup::Highlight, c );
setPalette( p, TRUE);
}
static const QColor &winStyleHighlightColor() {
return palette().active().highlight();
}
#endif
static void      setDesktopSettingsAware( bool );
static bool      desktopSettingsAware();

static void      setCursorFlashTime( int );
static int       cursorFlashTime();

static void      setDoubleClickInterval( int );
static int       doubleClickInterval();
#ifndef QT_NO_WHEELEVENT
static void      setWheelScrollLines( int );
static int       wheelScrollLines();
#endif
static void	     setGlobalStrut( const QSize & );
static QSize     globalStrut();

#ifndef QT_NO_COMPONENT
static void      setLibraryPaths( const QStringList & );
static QStringList libraryPaths();
static void      addLibraryPath( const QString & );
static void      removeLibraryPath( const QString & );
#endif // QT_NO_COMPONENT
static void setStartDragTime( int ms );
static int startDragTime();
static void setStartDragDistance( int l );
static int startDragDistance();

static void setReverseLayout( bool b );
static bool reverseLayout();

static int horizontalAlignment( int align );

static bool	    isEffectEnabled( Qt::UIEffect );
static void	    setEffectEnabled( Qt::UIEffect, bool enable = TRUE );

#if defined(Q_WS_MAC)
virtual bool     macEventFilter( EventHandlerCallRef, EventRef );
#endif
#if defined(Q_WS_WIN)
virtual bool     winEventFilter( MSG * );
#endif
#if defined(Q_WS_X11)
virtual bool     x11EventFilter( XEvent * );
virtual int	     x11ClientMessage( QWidget*, XEvent*, bool passive_only);
int              x11ProcessEvent( XEvent* );
#endif
#if defined(Q_WS_QWS)
virtual bool     qwsEventFilter( QWSEvent * );
int              qwsProcessEvent( QWSEvent* );
void             qwsSetCustomColors( QRgb *colortable, int start, int numColors );
/*!
\internal
Returns true if the process is GUI server
*/
bool          qwsIsGUIServer();
#ifndef QT_NO_QWS_MANAGER
static QWSDecoration &qwsDecoration();
static void      qwsSetDecoration( QWSDecoration *);
#endif
#endif

#if defined(Q_OS_WIN32) || defined(Q_OS_CYGWIN)
static WindowsVersion winVersion();
#elif defined(Q_OS_MAC)
static MacintoshVersion macVersion();
#endif
#if defined(Q_WS_WIN)
void	     winFocus( QWidget *, bool );
static void	     winMouseButtonUp();
#endif

#ifndef QT_NO_SESSIONMANAGER
// session management
bool	     isSessionRestored() const;
QString 	sessionId() const;
QString 	sessionKey() const;
virtual void     commitData( QSessionManager& sm );
virtual void     saveState( QSessionManager& sm );
#endif
#if defined(Q_WS_X11)
static void create_xim();
static void close_xim();
static bool x11_apply_settings();
#endif
void	     lock();
void	     unlock(bool wakeUpGui = TRUE);
bool	     locked();
bool             tryLock();
#endif

signals:
void	     lastWindowClosed();

public slots:
void	     quit();
void	     closeAllWindows();

#if defined(Q_WS_QWS)
protected:
void setArgs(int, char **);
#endif

protected:
bool event(QEvent *);

private:
void construct( int &argc, char **argv, Type );
void initialize( int, char ** );
void init_precmdline();
void process_cmdline( int* argcptr, char ** argv );
bool internalNotify( QObject *, QEvent * );
#if defined(Q_WS_QWS)
static QWidget *findChildWidget( const QWidget *p, const QPoint &pos );
static QWidget *findWidget( const QObjectList&, const QPoint &, bool rec );
#endif

#if defined(Q_WS_MAC)
bool do_mouse_down(Point *, bool *);
static QMAC_PASCAL OSStatus globalEventProcessor(EventHandlerCallRef,  EventRef, void *);
static QMAC_PASCAL OSStatus globalAppleEventProcessor(const AppleEvent *, AppleEvent *, long);
static QMAC_PASCAL void qt_context_timer_callbk(EventLoopTimerRef, void *);
static QMAC_PASCAL void qt_select_timer_callbk(EventLoopTimerRef, void *);
static bool qt_mac_apply_settings();
friend class QMacInputMethod;
friend QMAC_PASCAL OSStatus qt_window_event(EventHandlerCallRef, EventRef, void *);
friend void qt_mac_update_os_settings();
friend bool qt_set_socket_handler( int, int, QObject *, bool);
friend void qt_mac_destroy_widget(QWidget *);
friend void qt_init(int *, char **, QApplication::Type);
#endif

static QMutex   *qt_mutex;

int		     app_argc;
char	   **app_argv;
bool	     quit_now;
int		     quit_code;
static QStyle   *app_style;
static int	     app_cspec;
#ifndef QT_NO_PALETTE
static QPalette *app_pal;
#endif
static QFont    *app_font;
#ifndef QT_NO_CURSOR
static QCursor  *app_cursor;
#endif
static QEventLoop* eventloop;
static int	     app_tracking;
static bool	     is_app_running;
static bool	     is_app_closing;
static bool	     app_exit_loop;
static int	     loop_level;
static QWidget  *main_widget;
static QWidget  *focus_widget;
static QWidget  *active_window;
static bool	     obey_desktop_settings;
static int	     cursor_flash_time;
static int	     mouse_double_click_time;
static int	     wheel_scroll_lines;
static int	     composedUnicode; // Value, meta-composed character

static bool	     animate_ui;
static bool	     animate_tooltip;
static bool	     animate_combo;
static bool	     animate_toolbox;
static bool	     widgetCount; // Coupled with -widgetcount switch
static bool	     metaComposeUnicode;

QValueList<QTranslator*> *translators;
#ifndef QT_NO_SESSIONMANAGER
QSessionManager *session_manager;
QString	     session_id;
static QString* session_key;
bool	     is_session_restored;
#endif
#if defined(Q_WS_X11) && !defined (QT_NO_STYLE )
static void x11_initialize_style();
#endif

static QSize     app_strut;
#ifndef QT_NO_COMPONENT
static QStringList *app_libpaths;
#endif
static QAsciiDict<QPalette> *app_palettes;
static QAsciiDict<QFont>    *app_fonts;

static QWidgetList *popupWidgets;
bool	     inPopupMode() const;
void	     closePopup( QWidget *popup );
void	     openPopup( QWidget *popup );
void	     setActiveWindow( QWidget* act );

static bool      sendSpontaneousEvent( QObject *receiver, QEvent *event );
static void      removePostedEvent( QEvent * );

friend class QWidget;
friend class QETWidget;
friend class QDialog;
friend class QAccelManager;
friend class QEvent;
friend class QTranslator;
friend class QEventLoop;
friend Q_EXPORT void qt_ucm_initialize( QApplication * );
#if defined(Q_WS_WIN)
friend bool qt_sendSpontaneousEvent( QObject*, QEvent* );
#endif
#if defined(Q_WS_QWS)
friend class QInputContext;
#endif
private: // Disabled copy constructor and operator=
#if defined(Q_DISABLE_COPY)
QApplication( const QApplication & );
QApplication &operator=( const QApplication & );
#endif
};

inline int QApplication::argc() const
{
return app_argc;
}

inline char **QApplication::argv() const
{
return app_argv;
}

#if defined(Q_WS_QWS)
inline void QApplication::setArgs(int c, char **v)
{
app_argc = c;
app_argv = v;
}
#endif

#ifndef QT_NO_CURSOR
inline QCursor *QApplication::overrideCursor()
{
return app_cursor;
}
#endif
inline bool QApplication::hasGlobalMouseTracking()
{
return app_tracking > 0;
}

inline QWidget *QApplication::mainWidget() const
{
return main_widget;
}

inline QWidget *QApplication::focusWidget() const
{
return focus_widget;
}

inline QWidget *QApplication::activeWindow() const
{
return active_window;
}

inline QWidget *QApplication::widgetAt( const QPoint &p, bool child )
{
return widgetAt( p.x(), p.y(), child );
}

inline bool QApplication::inPopupMode() const
{
return popupWidgets != 0;
}
#ifndef QT_NO_SESSIONMANAGER
inline bool QApplication::isSessionRestored() const
{
return is_session_restored;
}

inline QString QApplication::sessionId() const
{
return session_id;
}

inline QString QApplication::sessionKey() const
{
return session_key ? *session_key : QString::null;
}
#endif
inline QSize QApplication::globalStrut()
{
return app_strut;
}

inline bool QApplication::sendEvent( QObject *receiver, QEvent *event )
{  if ( event ) event->spont = FALSE; return qApp ? qApp->notify( receiver, event ) : FALSE; }

inline bool QApplication::sendSpontaneousEvent( QObject *receiver, QEvent *event )
{ if ( event ) event->spont = TRUE; return qApp ? qApp->notify( receiver, event ) : FALSE; }

#ifdef QT_NO_TRANSLATION
// Simple versions
inline QString QApplication::translate( const char *, const char *sourceText,
const char *, Encoding encoding ) const
{
#ifndef QT_NO_TEXTCODEC
if ( encoding == UnicodeUTF8 )
return QString::fromUtf8( sourceText );
else
#endif
return QString::fromLatin1( sourceText );
}
#endif

inline int QApplication::horizontalAlignment( int align )
{
if ( align == AlignAuto ) {
if ( reverseLayout() )
align = AlignRight;
else
align = AlignLeft;
}
return align;
}

#endif // QAPPLICATION_H

```