qapplication.h
This is the verbatim text of the qapplication.h include file. It is provided only for illustration; the copyright remains with Trolltech.
/****************************************************************************
** $Id$
**
** Definition of QApplication class
**
** Created : 931107
**
** Copyright (C) 1992-2002 Trolltech AS. All rights reserved.
**
** This file is part of the kernel module of the Qt GUI Toolkit.
**
** This file may be distributed under the terms of the Q Public License
** as defined by Trolltech AS 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
** GNU General Public License version 2 as published by the Free Software
** 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
** information about Qt Commercial License Agreements.
** 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
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**********************************************************************/
#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;
class QWSMouseEvent;
#endif
#ifdef QT_THREAD_SUPPORT
class QMutex;
#endif // QT_THREAD_SUPPORT
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 );
#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 wakeUpGuiThread();
#if defined(QT_THREAD_SUPPORT)
void lock();
void unlock(bool wakeUpGui = TRUE);
bool locked();
bool tryLock();
#endif
signals:
void lastWindowClosed();
void aboutToQuit();
void guiThreadAwake();
public slots:
void quit();
void closeAllWindows();
void aboutQt();
#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 );
static void updateMouseState( QWSMouseEvent * );
#endif
#if defined(Q_WS_MAC)
bool do_mouse_down(Point *, bool *);
static QMAC_PASCAL OSStatus globalEventProcessor(EventHandlerCallRef, EventRef, void *);
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
#ifdef QT_THREAD_SUPPORT
static QMutex *qt_mutex;
#endif // QT_THREAD_SUPPORT
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_menu;
static bool animate_tooltip;
static bool animate_combo;
static bool fade_menu;
static bool fade_tooltip;
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 )
{
align &= AlignHorizontal_Mask;
if ( align == AlignAuto ) {
if ( reverseLayout() )
align = AlignRight;
else
align = AlignLeft;
}
return align;
}
#endif // QAPPLICATION_H
