MCL/sf/mw/qt: comparison src/gui/kernel/qevent.cpp

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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#include "qevent.h"
+#include "qcursor.h"
+#include "qapplication.h"
+#include "private/qapplication_p.h"
+#include "private/qkeysequence_p.h"
+#include "qwidget.h"
+#include "qgraphicsview.h"
+#include "qdebug.h"
+#include "qmime.h"
+#include "qdnd_p.h"
+#include "qevent_p.h"
+#include "qgesture.h"
+#include "qgesture_p.h"
+QT_BEGIN_NAMESPACE
+/*!
+\class QInputEvent
+\ingroup events
+\brief The QInputEvent class is the base class for events that
+describe user input.
+*/
+/*!
+\internal
+*/
+QInputEvent::QInputEvent(Type type, Qt::KeyboardModifiers modifiers)
+: QEvent(type), modState(modifiers)
+{}
+/*!
+\internal
+*/
+QInputEvent::~QInputEvent()
+{
+}
+/*!
+\fn Qt::KeyboardModifiers QInputEvent::modifiers() const
+Returns the keyboard modifier flags that existed immediately
+before the event occurred.
+\sa QApplication::keyboardModifiers()
+*/
+/*! \fn void QInputEvent::setModifiers(Qt::KeyboardModifiers modifiers)
+\internal
+Sets the keyboard modifiers flags for this event.
+*/
+/*!
+\class QMouseEvent
+\ingroup events
+\brief The QMouseEvent class contains parameters that describe a mouse event.
+Mouse events occur when a mouse button is pressed or released
+inside a widget, or when the mouse cursor is moved.
+Mouse move events will occur only when a mouse button is pressed
+down, unless mouse tracking has been enabled with
+QWidget::setMouseTracking().
+Qt automatically grabs the mouse when a mouse button is pressed
+inside a widget; the widget will continue to receive mouse events
+until the last mouse button is released.
+A mouse event contains a special accept flag that indicates
+whether the receiver wants the event. You should call ignore() if
+the mouse event is not handled by your widget. A mouse event is
+propagated up the parent widget chain until a widget accepts it
+with accept(), or an event filter consumes it.
+\note If a mouse event is propagated to a \l{QWidget}{widget} for
+which Qt::WA_NoMousePropagation has been set, that mouse event
+will not be propagated further up the parent widget chain.
+The state of the keyboard modifier keys can be found by calling the
+\l{QInputEvent::modifiers()}{modifiers()} function, inherited from
+QInputEvent.
+The functions pos(), x(), and y() give the cursor position
+relative to the widget that receives the mouse event. If you
+move the widget as a result of the mouse event, use the global
+position returned by globalPos() to avoid a shaking motion.
+The QWidget::setEnabled() function can be used to enable or
+disable mouse and keyboard events for a widget.
+Reimplement the QWidget event handlers, QWidget::mousePressEvent(),
+QWidget::mouseReleaseEvent(), QWidget::mouseDoubleClickEvent(),
+and QWidget::mouseMoveEvent() to receive mouse events in your own
+widgets.
+\sa QWidget::setMouseTracking() QWidget::grabMouse()
+QCursor::pos()
+*/
+/*!
+Constructs a mouse event object.
+The \a type parameter must be one of QEvent::MouseButtonPress,
+QEvent::MouseButtonRelease, QEvent::MouseButtonDblClick,
+or QEvent::MouseMove.
+The \a position is the mouse cursor's position relative to the
+receiving widget.
+The \a button that caused the event is given as a value from
+the Qt::MouseButton enum. If the event \a type is
+\l MouseMove, the appropriate button for this event is Qt::NoButton.
+The mouse and keyboard states at the time of the event are specified by
+\a buttons and \a modifiers.
+The globalPos() is initialized to QCursor::pos(), which may not
+be appropriate. Use the other constructor to specify the global
+position explicitly.
+*/
+QMouseEvent::QMouseEvent(Type type, const QPoint &position, Qt::MouseButton button,
+Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers)
+: QInputEvent(type, modifiers), p(position), b(button), mouseState(buttons)
+{
+g = QCursor::pos();
+}
+/*!
+\internal
+*/
+QMouseEvent::~QMouseEvent()
+{
+}
+#ifdef QT3_SUPPORT
+/*!
+Use QMouseEvent(\a type, \a pos, \a button, \c buttons, \c
+modifiers) instead, where \c buttons is \a state &
+Qt::MouseButtonMask and \c modifiers is \a state &
+Qt::KeyButtonMask.
+*/
+QMouseEvent::QMouseEvent(Type type, const QPoint &pos, Qt::ButtonState button, int state)
+: QInputEvent(type), p(pos), b((Qt::MouseButton)button)
+{
+g = QCursor::pos();
+mouseState = Qt::MouseButtons((state ^ b) & Qt::MouseButtonMask);
+modState = Qt::KeyboardModifiers(state & (int)Qt::KeyButtonMask);
+}
+/*!
+Use QMouseEvent(\a type, \a pos, \a globalPos, \a button,
+\c buttons, \c modifiers) instead, where
+\c buttons is \a state & Qt::MouseButtonMask and
+\c modifiers is \a state & Qt::KeyButtonMask.
+*/
+QMouseEvent::QMouseEvent(Type type, const QPoint &pos, const QPoint &globalPos,
+Qt::ButtonState button, int state)
+: QInputEvent(type), p(pos), g(globalPos), b((Qt::MouseButton)button)
+{
+mouseState = Qt::MouseButtons((state ^ b) & Qt::MouseButtonMask);
+modState = Qt::KeyboardModifiers(state & (int)Qt::KeyButtonMask);
+}
+#endif
+/*!
+Constructs a mouse event object.
+The \a type parameter must be QEvent::MouseButtonPress,
+QEvent::MouseButtonRelease, QEvent::MouseButtonDblClick,
+or QEvent::MouseMove.
+The \a pos is the mouse cursor's position relative to the
+receiving widget. The cursor's position in global coordinates is
+specified by \a globalPos.  The \a button that caused the event is
+given as a value from the \l Qt::MouseButton enum. If the event \a
+type is \l MouseMove, the appropriate button for this event is
+Qt::NoButton. \a buttons is the state of all buttons at the
+time of the event, \a modifiers the state of all keyboard
+modifiers.
+*/
+QMouseEvent::QMouseEvent(Type type, const QPoint &pos, const QPoint &globalPos,
+Qt::MouseButton button, Qt::MouseButtons buttons,
+Qt::KeyboardModifiers modifiers)
+: QInputEvent(type, modifiers), p(pos), g(globalPos), b(button), mouseState(buttons)
+{}
+/*!
+\internal
+*/
+QMouseEvent *QMouseEvent::createExtendedMouseEvent(Type type, const QPointF &pos,
+const QPoint &globalPos, Qt::MouseButton button,
+Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers)
+{
+return new QMouseEventEx(type, pos, globalPos, button, buttons, modifiers);
+}
+/*!
+\fn bool QMouseEvent::hasExtendedInfo() const
+\internal
+*/
+/*!
+\since 4.4
+Returns the position of the mouse cursor as a QPointF, relative to the
+widget that received the event.
+If you move the widget as a result of the mouse event, use the
+global position returned by globalPos() to avoid a shaking
+motion.
+\sa x() y() pos() globalPos()
+*/
+QPointF QMouseEvent::posF() const
+{
+return hasExtendedInfo() ? reinterpret_cast<const QMouseEventEx *>(this)->posF : QPointF(pos());
+}
+/*!
+\internal
+*/
+QMouseEventEx::QMouseEventEx(Type type, const QPointF &pos, const QPoint &globalPos,
+Qt::MouseButton button, Qt::MouseButtons buttons,
+Qt::KeyboardModifiers modifiers)
+: QMouseEvent(type, pos.toPoint(), globalPos, button, buttons, modifiers), posF(pos)
+{
+d = reinterpret_cast<QEventPrivate *>(this);
+}
+/*!
+\internal
+*/
+QMouseEventEx::~QMouseEventEx()
+{
+}
+/*!
+\fn const QPoint &QMouseEvent::pos() const
+Returns the position of the mouse cursor, relative to the widget
+that received the event.
+If you move the widget as a result of the mouse event, use the
+global position returned by globalPos() to avoid a shaking
+motion.
+\sa x() y() globalPos()
+*/
+/*!
+\fn const QPoint &QMouseEvent::globalPos() const
+Returns the global position of the mouse cursor \e{at the time
+of the event}. This is important on asynchronous window systems
+like X11. Whenever you move your widgets around in response to
+mouse events, globalPos() may differ a lot from the current
+pointer position QCursor::pos(), and from
+QWidget::mapToGlobal(pos()).
+\sa globalX() globalY()
+*/
+/*!
+\fn int QMouseEvent::x() const
+Returns the x position of the mouse cursor, relative to the
+widget that received the event.
+\sa y() pos()
+*/
+/*!
+\fn int QMouseEvent::y() const
+Returns the y position of the mouse cursor, relative to the
+widget that received the event.
+\sa x() pos()
+*/
+/*!
+\fn int QMouseEvent::globalX() const
+Returns the global x position of the mouse cursor at the time of
+the event.
+\sa globalY() globalPos()
+*/
+/*!
+\fn int QMouseEvent::globalY() const
+Returns the global y position of the mouse cursor at the time of
+the event.
+\sa globalX() globalPos()
+*/
+/*!
+\fn Qt::MouseButton QMouseEvent::button() const
+Returns the button that caused the event.
+Note that the returned value is always Qt::NoButton for mouse
+move events.
+\sa buttons() Qt::MouseButton
+*/
+/*!
+\fn Qt::MouseButton QMouseEvent::buttons() const
+Returns the button state when the event was generated. The button
+state is a combination of Qt::LeftButton, Qt::RightButton,
+Qt::MidButton using the OR operator. For mouse move events,
+this is all buttons that are pressed down. For mouse press and
+double click events this includes the button that caused the
+event. For mouse release events this excludes the button that
+caused the event.
+\sa button() Qt::MouseButton
+*/
+/*!
+\fn Qt::ButtonState QMouseEvent::state() const
+Returns the button state immediately before the event was
+generated. The button state is a combination of mouse buttons
+(see Qt::ButtonState) and keyboard modifiers (Qt::MouseButtons).
+Use buttons() and/or modifiers() instead. Be aware that buttons()
+return the state immediately \e after the event was generated.
+*/
+/*!
+\fn Qt::ButtonState QMouseEvent::stateAfter() const
+Returns the button state immediately after the event was
+generated. The button state is a combination of mouse buttons
+(see Qt::ButtonState) and keyboard modifiers (Qt::MouseButtons).
+Use buttons() and/or modifiers() instead.
+*/
+/*!
+\class QHoverEvent
+\ingroup events
+\brief The QHoverEvent class contains parameters that describe a mouse event.
+Mouse events occur when a mouse cursor is moved into, out of, or within a
+widget, and if the widget has the Qt::WA_Hover attribute.
+The function pos() gives the current cursor position, while oldPos() gives
+the old mouse position.
+*/
+/*!
+\fn const QPoint &QHoverEvent::pos() const
+Returns the position of the mouse cursor, relative to the widget
+that received the event.
+On QEvent::HoverLeave events, this position will always be
+QPoint(-1, -1).
+\sa oldPos()
+*/
+/*!
+\fn const QPoint &QHoverEvent::oldPos() const
+Returns the previous position of the mouse cursor, relative to the widget
+that received the event. If there is no previous position, oldPos() will
+return the same position as pos().
+On QEvent::HoverEnter events, this position will always be
+QPoint(-1, -1).
+\sa pos()
+*/
+/*!
+Constructs a hover event object.
+The \a type parameter must be QEvent::HoverEnter,
+QEvent::HoverLeave, or QEvent::HoverMove.
+The \a pos is the current mouse cursor's position relative to the
+receiving widget, while \a oldPos is the previous mouse cursor's
+position relative to the receiving widget.
+*/
+QHoverEvent::QHoverEvent(Type type, const QPoint &pos, const QPoint &oldPos)
+: QEvent(type), p(pos), op(oldPos)
+{
+}
+/*!
+\internal
+*/
+QHoverEvent::~QHoverEvent()
+{
+}
+/*!
+\class QWheelEvent
+\brief The QWheelEvent class contains parameters that describe a wheel event.
+\ingroup events
+Wheel events are sent to the widget under the mouse cursor, but
+if that widget does not handle the event they are sent to the
+focus widget. The rotation distance is provided by delta().
+The functions pos() and globalPos() return the mouse cursor's
+location at the time of the event.
+A wheel event contains a special accept flag that indicates
+whether the receiver wants the event. You should call ignore() if
+you do not handle the wheel event; this ensures that it will be
+sent to the parent widget.
+The QWidget::setEnabled() function can be used to enable or
+disable mouse and keyboard events for a widget.
+The event handler QWidget::wheelEvent() receives wheel events.
+\sa QMouseEvent QWidget::grabMouse()
+*/
+/*!
+\fn Qt::MouseButtons QWheelEvent::buttons() const
+Returns the mouse state when the event occurred.
+*/
+/*!
+\fn Qt::Orientation QWheelEvent::orientation() const
+Returns the wheel's orientation.
+*/
+/*!
+Constructs a wheel event object.
+The position, \a pos, is the location of the mouse cursor within
+the widget. The globalPos() is initialized to QCursor::pos()
+which is usually, but not always, correct.
+Use the other constructor if you need to specify the global
+position explicitly.
+The \a buttons describe the state of the mouse buttons at the time
+of the event, \a delta contains the rotation distance,
+\a modifiers holds the keyboard modifier flags at the time of the
+event, and \a orient holds the wheel's orientation.
+\sa pos() delta() state()
+*/
+#ifndef QT_NO_WHEELEVENT
+QWheelEvent::QWheelEvent(const QPoint &pos, int delta,
+Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers,
+Qt::Orientation orient)
+: QInputEvent(Wheel, modifiers), p(pos), d(delta), mouseState(buttons), o(orient)
+{
+g = QCursor::pos();
+}
+/*!
+\internal
+*/
+QWheelEvent::~QWheelEvent()
+{
+}
+#ifdef QT3_SUPPORT
+/*!
+Use one of the other constructors instead.
+*/
+QWheelEvent::QWheelEvent(const QPoint &pos, int delta, int state, Qt::Orientation orient)
+: QInputEvent(Wheel), p(pos), d(delta), o(orient)
+{
+g = QCursor::pos();
+mouseState = Qt::MouseButtons(state & Qt::MouseButtonMask);
+modState = Qt::KeyboardModifiers(state & (int)Qt::KeyButtonMask);
+}
+#endif
+/*!
+Constructs a wheel event object.
+The \a pos provides the location of the mouse cursor
+within the widget. The position in global coordinates is specified
+by \a globalPos. \a delta contains the rotation distance, \a modifiers
+holds the keyboard modifier flags at the time of the event, and
+\a orient holds the wheel's orientation.
+\sa pos() globalPos() delta() state()
+*/
+QWheelEvent::QWheelEvent(const QPoint &pos, const QPoint& globalPos, int delta,
+Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers,
+Qt::Orientation orient)
+: QInputEvent(Wheel, modifiers), p(pos), g(globalPos), d(delta), mouseState(buttons), o(orient)
+{}
+#ifdef QT3_SUPPORT
+/*!
+Use one of the other constructors instead.
+*/
+QWheelEvent::QWheelEvent(const QPoint &pos, const QPoint& globalPos, int delta, int state,
+Qt::Orientation orient)
+: QInputEvent(Wheel), p(pos), g(globalPos), d(delta), o(orient)
+{
+mouseState = Qt::MouseButtons(state & Qt::MouseButtonMask);
+modState = Qt::KeyboardModifiers(state & (int) Qt::KeyButtonMask);
+}
+#endif
+#endif // QT_NO_WHEELEVENT
+/*!
+\fn int QWheelEvent::delta() const
+Returns the distance that the wheel is rotated, in eighths of a
+degree. A positive value indicates that the wheel was rotated
+forwards away from the user; a negative value indicates that the
+wheel was rotated backwards toward the user.
+Most mouse types work in steps of 15 degrees, in which case the
+delta value is a multiple of 120; i.e., 120 units * 1/8 = 15 degrees.
+However, some mice have finer-resolution wheels and send delta values
+that are less than 120 units (less than 15 degrees). To support this
+possibility, you can either cumulatively add the delta values from events
+until the value of 120 is reached, then scroll the widget, or you can
+partially scroll the widget in response to each wheel event.
+Example:
+\snippet doc/src/snippets/code/src_gui_kernel_qevent.cpp 0
+*/
+/*!
+\fn const QPoint &QWheelEvent::pos() const
+Returns the position of the mouse cursor relative to the widget
+that received the event.
+If you move your widgets around in response to mouse events,
+use globalPos() instead of this function.
+\sa x() y() globalPos()
+*/
+/*!
+\fn int QWheelEvent::x() const
+Returns the x position of the mouse cursor, relative to the
+widget that received the event.
+\sa y() pos()
+*/
+/*!
+\fn int QWheelEvent::y() const
+Returns the y position of the mouse cursor, relative to the
+widget that received the event.
+\sa x() pos()
+*/
+/*!
+\fn const QPoint &QWheelEvent::globalPos() const
+Returns the global position of the mouse pointer \e{at the time
+of the event}. This is important on asynchronous window systems
+such as X11; whenever you move your widgets around in response to
+mouse events, globalPos() can differ a lot from the current
+cursor position returned by QCursor::pos().
+\sa globalX() globalY()
+*/
+/*!
+\fn int QWheelEvent::globalX() const
+Returns the global x position of the mouse cursor at the time of
+the event.
+\sa globalY() globalPos()
+*/
+/*!
+\fn int QWheelEvent::globalY() const
+Returns the global y position of the mouse cursor at the time of
+the event.
+\sa globalX() globalPos()
+*/
+/*! \obsolete
+\fn Qt::ButtonState QWheelEvent::state() const
+Returns the keyboard modifier flags at the time of the event.
+The returned value is a selection of the following values,
+combined using the OR operator: Qt::ShiftButton,
+Qt::ControlButton, and Qt::AltButton.
+*/
+/*!
+\class QKeyEvent
+\brief The QKeyEvent class describes a key event.
+\ingroup events
+Key events are sent to the widget with keyboard input focus
+when keys are pressed or released.
+A key event contains a special accept flag that indicates whether
+the receiver will handle the key event. You should call ignore()
+if the key press or release event is not handled by your widget.
+A key event is propagated up the parent widget chain until a
+widget accepts it with accept() or an event filter consumes it.
+Key events for multimedia keys are ignored by default. You should
+call accept() if your widget handles those events.
+The QWidget::setEnable() function can be used to enable or disable
+mouse and keyboard events for a widget.
+The event handlers QWidget::keyPressEvent(), QWidget::keyReleaseEvent(),
+QGraphicsItem::keyPressEvent() and QGraphicsItem::keyReleaseEvent()
+receive key events.
+\sa QFocusEvent, QWidget::grabKeyboard()
+*/
+/*!
+Constructs a key event object.
+The \a type parameter must be QEvent::KeyPress, QEvent::KeyRelease,
+or QEvent::ShortcutOverride.
+Int \a key is the code for the Qt::Key that the event loop should listen
+for. If \a key is 0, the event is not a result of a known key; for
+example, it may be the result of a compose sequence or keyboard macro.
+The \a modifiers holds the keyboard modifiers, and the given \a text
+is the Unicode text that the key generated. If \a autorep is true,
+isAutoRepeat() will be true. \a count is the number of keys involved
+in the event.
+*/
+QKeyEvent::QKeyEvent(Type type, int key, Qt::KeyboardModifiers modifiers, const QString& text,
+bool autorep, ushort count)
+: QInputEvent(type, modifiers), txt(text), k(key), c(count), autor(autorep)
+{
+}
+/*!
+\internal
+*/
+QKeyEvent::~QKeyEvent()
+{
+}
+/*!
+\internal
+*/
+QKeyEvent *QKeyEvent::createExtendedKeyEvent(Type type, int key, Qt::KeyboardModifiers modifiers,
+quint32 nativeScanCode, quint32 nativeVirtualKey,
+quint32 nativeModifiers,
+const QString& text, bool autorep, ushort count)
+{
+return new QKeyEventEx(type, key, modifiers, text, autorep, count,
+nativeScanCode, nativeVirtualKey, nativeModifiers);
+}
+/*!
+\fn bool QKeyEvent::hasExtendedInfo() const
+\internal
+*/
+/*!
+\since 4.2
+Returns the native scan code of the key event.  If the key event
+does not contain this data 0 is returned.
+Note: The native scan code may be 0, even if the key event contains
+extended information.
+Note: On Mac OS/X, this function is not useful, because there is no
+way to get the scan code from Carbon or Cocoa. The function always
+returns 1 (or 0 in the case explained above).
+*/
+quint32 QKeyEvent::nativeScanCode() const
+{
+return (reinterpret_cast<const QKeyEvent*>(d) != this
+? 0 : reinterpret_cast<const QKeyEventEx*>(this)->nScanCode);
+}
+/*!
+\since 4.2
+Returns the native virtual key, or key sym of the key event.
+If the key event does not contain this data 0 is returned.
+Note: The native virtual key may be 0, even if the key event contains extended information.
+*/
+quint32 QKeyEvent::nativeVirtualKey() const
+{
+return (reinterpret_cast<const QKeyEvent*>(d) != this
+? 0 : reinterpret_cast<const QKeyEventEx*>(this)->nVirtualKey);
+}
+/*!
+\since 4.2
+Returns the native modifiers of a key event.
+If the key event does not contain this data 0 is returned.
+Note: The native modifiers may be 0, even if the key event contains extended information.
+*/
+quint32 QKeyEvent::nativeModifiers() const
+{
+return (reinterpret_cast<const QKeyEvent*>(d) != this
+? 0 : reinterpret_cast<const QKeyEventEx*>(this)->nModifiers);
+}
+/*!
+\internal
+Creates an extended key event object, which in addition to the normal key event data, also
+contains the native scan code, virtual key and modifiers. This extra data is used by the
+shortcut system, to determine which shortcuts to trigger.
+*/
+QKeyEventEx::QKeyEventEx(Type type, int key, Qt::KeyboardModifiers modifiers,
+const QString &text, bool autorep, ushort count,
+quint32 nativeScanCode, quint32 nativeVirtualKey, quint32 nativeModifiers)
+: QKeyEvent(type, key, modifiers, text, autorep, count),
+nScanCode(nativeScanCode), nVirtualKey(nativeVirtualKey), nModifiers(nativeModifiers)
+{
+d = reinterpret_cast<QEventPrivate*>(this);
+}
+/*!
+\internal
+Creates a copy of an other extended key event.
+*/
+QKeyEventEx::QKeyEventEx(const QKeyEventEx &other)
+: QKeyEvent(QEvent::Type(other.t), other.k, other.modState, other.txt, other.autor, other.c),
+nScanCode(other.nScanCode), nVirtualKey(other.nVirtualKey), nModifiers(other.nModifiers)
+{
+d = reinterpret_cast<QEventPrivate*>(this);
+}
+/*!
+\internal
+*/
+QKeyEventEx::~QKeyEventEx()
+{
+}
+/*!
+\fn int QKeyEvent::key() const
+Returns the code of the key that was pressed or released.
+See \l Qt::Key for the list of keyboard codes. These codes are
+independent of the underlying window system. Note that this
+function does not distinguish between capital and non-capital
+letters, use the text() function (returning the Unicode text the
+key generated) for this purpose.
+A value of either 0 or Qt::Key_unknown means that the event is not
+the result of a known key; for example, it may be the result of
+a compose sequence, a keyboard macro, or due to key event
+compression.
+\sa Qt::WA_KeyCompression
+*/
+/*!
+\fn QString QKeyEvent::text() const
+Returns the Unicode text that this key generated. The text
+returned can be an empty string in cases
+where modifier keys, such as Shift, Control, Alt, and Meta,
+are being pressed or released. In such cases key() will contain
+a valid value.
+\sa Qt::WA_KeyCompression
+*/
+/*!
+Returns the keyboard modifier flags that existed immediately
+after the event occurred.
+\warning This function cannot always be trusted. The user can
+confuse it by pressing both \key{Shift} keys simultaneously and
+releasing one of them, for example.
+\sa QApplication::keyboardModifiers()
+*/
+//###### We must check with XGetModifierMapping
+Qt::KeyboardModifiers QKeyEvent::modifiers() const
+{
+if (key() == Qt::Key_Shift)
+return Qt::KeyboardModifiers(QInputEvent::modifiers()^Qt::ShiftModifier);
+if (key() == Qt::Key_Control)
+return Qt::KeyboardModifiers(QInputEvent::modifiers()^Qt::ControlModifier);
+if (key() == Qt::Key_Alt)
+return Qt::KeyboardModifiers(QInputEvent::modifiers()^Qt::AltModifier);
+if (key() == Qt::Key_Meta)
+return Qt::KeyboardModifiers(QInputEvent::modifiers()^Qt::MetaModifier);
+return QInputEvent::modifiers();
+}
+#ifndef QT_NO_SHORTCUT
+/*!
+\fn bool QKeyEvent::matches(QKeySequence::StandardKey key) const
+\since 4.2
+Returns true if the key event matches the given standard \a key;
+otherwise returns false.
+*/
+bool QKeyEvent::matches(QKeySequence::StandardKey matchKey) const
+{
+uint searchkey = (modifiers() | key()) & ~(Qt::KeypadModifier); //The keypad modifier should not make a difference
+uint platform = QApplicationPrivate::currentPlatform();
+#ifdef Q_WS_MAC
+if (qApp->testAttribute(Qt::AA_MacDontSwapCtrlAndMeta)) {
+uint oldSearchKey = searchkey;
+searchkey &= ~(Qt::ControlModifier | Qt::MetaModifier);
+if (oldSearchKey & Qt::ControlModifier)
+searchkey |= Qt::MetaModifier;
+if (oldSearchKey & Qt::MetaModifier)
+searchkey |= Qt::ControlModifier;
+}
+#endif
+uint N = QKeySequencePrivate::numberOfKeyBindings;
+int first = 0;
+int last = N - 1;
+while (first <= last) {
+int mid = (first + last) / 2;
+QKeyBinding midVal = QKeySequencePrivate::keyBindings[mid];
+if (searchkey > midVal.shortcut){
+first = mid + 1;  // Search in top half
+}
+else if (searchkey < midVal.shortcut){
+last = mid - 1; // Search in bottom half
+}
+else {
+//found correct shortcut value, now we must check for platform match
+if ((midVal.platform & platform) && (midVal.standardKey == matchKey)) {
+return true;
+} else { //We may have several equal values for different platforms, so we must search in both directions
+//search forward
+for ( unsigned int i = mid + 1 ; i < N - 1 ; ++i) {
+QKeyBinding current = QKeySequencePrivate::keyBindings[i];
+if (current.shortcut != searchkey)
+break;
+else if (current.platform & platform && current.standardKey == matchKey)
+return true;
+}
+//search back
+for ( int i = mid - 1 ; i >= 0 ; --i) {
+QKeyBinding current = QKeySequencePrivate::keyBindings[i];
+if (current.shortcut != searchkey)
+break;
+else if (current.platform & platform && current.standardKey == matchKey)
+return true;
+}
+return false; //we could not find it among the matching keySequences
+}
+}
+}
+return false; //we could not find matching keySequences at all
+}
+#endif // QT_NO_SHORTCUT
+/*!
+\fn bool QKeyEvent::isAutoRepeat() const
+Returns true if this event comes from an auto-repeating key;
+returns false if it comes from an initial key press.
+Note that if the event is a multiple-key compressed event that is
+partly due to auto-repeat, this function could return either true
+or false indeterminately.
+*/
+/*!
+\fn int QKeyEvent::count() const
+Returns the number of keys involved in this event. If text()
+is not empty, this is simply the length of the string.
+\sa Qt::WA_KeyCompression
+*/
+#ifdef QT3_SUPPORT
+/*!
+\fn QKeyEvent::QKeyEvent(Type type, int key, int ascii,
+int modifiers, const QString &text,
+bool autorep, ushort count)
+Use one of the other constructors instead.
+*/
+/*!
+\fn int QKeyEvent::ascii() const
+Use text() instead.
+*/
+/*!
+\fn Qt::ButtonState QKeyEvent::state() const
+Use QInputEvent::modifiers() instead.
+*/
+/*!
+\fn Qt::ButtonState QKeyEvent::stateAfter() const
+Use modifiers() instead.
+*/
+#endif
+/*!
+\class QFocusEvent
+\brief The QFocusEvent class contains event parameters for widget focus
+events.
+\ingroup events
+Focus events are sent to widgets when the keyboard input focus
+changes. Focus events occur due to mouse actions, key presses
+(such as \gui{Tab} or \gui{Backtab}), the window system, popup
+menus, keyboard shortcuts, or other application-specific reasons.
+The reason for a particular focus event is returned by reason()
+in the appropriate event handler.
+The event handlers QWidget::focusInEvent(),
+QWidget::focusOutEvent(), QGraphicsItem::focusInEvent and
+QGraphicsItem::focusOutEvent() receive focus events.
+\sa QWidget::setFocus(), QWidget::setFocusPolicy(), {Keyboard Focus}
+*/
+/*!
+Constructs a focus event object.
+The \a type parameter must be either QEvent::FocusIn or
+QEvent::FocusOut. The \a reason describes the cause of the change
+in focus.
+*/
+QFocusEvent::QFocusEvent(Type type, Qt::FocusReason reason)
+: QEvent(type), m_reason(reason)
+{}
+/*!
+\internal
+*/
+QFocusEvent::~QFocusEvent()
+{
+}
+// ### Qt 5: remove
+/*!
+\internal
+*/
+Qt::FocusReason QFocusEvent::reason()
+{
+return m_reason;
+}
+/*!
+Returns the reason for this focus event.
+*/
+Qt::FocusReason QFocusEvent::reason() const
+{
+return m_reason;
+}
+/*!
+\fn bool QFocusEvent::gotFocus() const
+Returns true if type() is QEvent::FocusIn; otherwise returns
+false.
+*/
+/*!
+\fn bool QFocusEvent::lostFocus() const
+Returns true if type() is QEvent::FocusOut; otherwise returns
+false.
+*/
+#ifdef QT3_SUPPORT
+/*!
+\enum QFocusEvent::Reason
+\compat
+Use Qt::FocusReason instead.
+\value Mouse  Same as Qt::MouseFocusReason.
+\value Tab  Same as Qt::TabFocusReason.
+\value Backtab  Same as Qt::BacktabFocusReason.
+\value MenuBar  Same as Qt::MenuBarFocusReason.
+\value ActiveWindow  Same as Qt::ActiveWindowFocusReason
+\value Other  Same as Qt::OtherFocusReason
+\value Popup  Same as Qt::PopupFocusReason
+\value Shortcut  Same as Qt::ShortcutFocusReason
+*/
+#endif
+/*!
+\class QPaintEvent
+\brief The QPaintEvent class contains event parameters for paint events.
+\ingroup events
+Paint events are sent to widgets that need to update themselves,
+for instance when part of a widget is exposed because a covering
+widget was moved.
+The event contains a region() that needs to be updated, and a
+rect() that is the bounding rectangle of that region. Both are
+provided because many widgets can't make much use of region(),
+and rect() can be much faster than region().boundingRect().
+\section1 Automatic Clipping
+Painting is clipped to region() during the processing of a paint
+event. This clipping is performed by Qt's paint system and is
+independent of any clipping that may be applied to a QPainter used to
+draw on the paint device.
+As a result, the value returned by QPainter::clipRegion() on
+a newly-constructed QPainter will not reflect the clip region that is
+used by the paint system.
+\sa QPainter, QWidget::update(), QWidget::repaint(),
+QWidget::paintEvent()
+*/
+/*!
+\fn bool QPaintEvent::erased() const
+\compat
+Returns true if the paint event region (or rectangle) has been
+erased with the widget's background; otherwise returns false.
+Qt 4 \e always erases regions that require painting. The exception
+to this rule is if the widget sets the Qt::WA_OpaquePaintEvent or
+Qt::WA_NoSystemBackground attributes. If either one of those
+attributes is set \e and the window system does not make use of
+subwidget alpha composition (currently X11 and Windows, but this
+may change), then the region is not erased.
+*/
+/*!
+\fn void QPaintEvent::setErased(bool b) { m_erased = b; }
+\internal
+*/
+/*!
+Constructs a paint event object with the region that needs to
+be updated. The region is specified by \a paintRegion.
+*/
+QPaintEvent::QPaintEvent(const QRegion& paintRegion)
+: QEvent(Paint), m_rect(paintRegion.boundingRect()), m_region(paintRegion), m_erased(false)
+{}
+/*!
+Constructs a paint event object with the rectangle that needs
+to be updated. The region is specified by \a paintRect.
+*/
+QPaintEvent::QPaintEvent(const QRect &paintRect)
+: QEvent(Paint), m_rect(paintRect),m_region(paintRect), m_erased(false)
+{}
+#ifdef QT3_SUPPORT
+/*!
+Constructs a paint event object with both a \a paintRegion and a
+\a paintRect, both of which represent the area of the widget that
+needs to be updated.
+*/
+QPaintEvent::QPaintEvent(const QRegion &paintRegion, const QRect &paintRect)
+: QEvent(Paint), m_rect(paintRect), m_region(paintRegion), m_erased(false)
+{}
+#endif
+/*!
+\internal
+*/
+QPaintEvent::~QPaintEvent()
+{
+}
+/*!
+\fn const QRect &QPaintEvent::rect() const
+Returns the rectangle that needs to be updated.
+\sa region() QPainter::setClipRect()
+*/
+/*!
+\fn const QRegion &QPaintEvent::region() const
+Returns the region that needs to be updated.
+\sa rect() QPainter::setClipRegion()
+*/
+QUpdateLaterEvent::QUpdateLaterEvent(const QRegion& paintRegion)
+: QEvent(UpdateLater), m_region(paintRegion)
+{
+}
+QUpdateLaterEvent::~QUpdateLaterEvent()
+{
+}
+/*!
+\class QMoveEvent
+\brief The QMoveEvent class contains event parameters for move events.
+\ingroup events
+Move events are sent to widgets that have been moved to a new
+position relative to their parent.
+The event handler QWidget::moveEvent() receives move events.
+\sa QWidget::move(), QWidget::setGeometry()
+*/
+/*!
+Constructs a move event with the new and old widget positions,
+\a pos and \a oldPos respectively.
+*/
+QMoveEvent::QMoveEvent(const QPoint &pos, const QPoint &oldPos)
+: QEvent(Move), p(pos), oldp(oldPos)
+{}
+/*!
+\internal
+*/
+QMoveEvent::~QMoveEvent()
+{
+}
+/*!
+\fn const QPoint &QMoveEvent::pos() const
+Returns the new position of the widget. This excludes the window
+frame for top level widgets.
+*/
+/*!
+\fn const QPoint &QMoveEvent::oldPos() const
+Returns the old position of the widget.
+*/
+/*!
+\class QResizeEvent
+\brief The QResizeEvent class contains event parameters for resize events.
+\ingroup events
+Resize events are sent to widgets that have been resized.
+The event handler QWidget::resizeEvent() receives resize events.
+\sa QWidget::resize() QWidget::setGeometry()
+*/
+/*!
+Constructs a resize event with the new and old widget sizes, \a
+size and \a oldSize respectively.
+*/
+QResizeEvent::QResizeEvent(const QSize &size, const QSize &oldSize)
+: QEvent(Resize), s(size), olds(oldSize)
+{}
+/*!
+\internal
+*/
+QResizeEvent::~QResizeEvent()
+{
+}
+/*!
+\fn const QSize &QResizeEvent::size() const
+Returns the new size of the widget. This is the same as
+QWidget::size().
+*/
+/*!
+\fn const QSize &QResizeEvent::oldSize() const
+Returns the old size of the widget.
+*/
+/*!
+\class QCloseEvent
+\brief The QCloseEvent class contains parameters that describe a close event.
+\ingroup events
+Close events are sent to widgets that the user wants to close,
+usually by choosing "Close" from the window menu, or by clicking
+the \gui{X} title bar button. They are also sent when you call
+QWidget::close() to close a widget programmatically.
+Close events contain a flag that indicates whether the receiver
+wants the widget to be closed or not. When a widget accepts the
+close event, it is hidden (and destroyed if it was created with
+the Qt::WA_DeleteOnClose flag). If it refuses to accept the close
+event nothing happens. (Under X11 it is possible that the window
+manager will forcibly close the window; but at the time of writing
+we are not aware of any window manager that does this.)
+The event handler QWidget::closeEvent() receives close events. The
+default implementation of this event handler accepts the close
+event. If you do not want your widget to be hidden, or want some
+special handing, you should reimplement the event handler and
+ignore() the event.
+The \l{mainwindows/application#close event handler}{closeEvent() in the
+Application example} shows a close event handler that
+asks whether to save a document before closing.
+If you want the widget to be deleted when it is closed, create it
+with the Qt::WA_DeleteOnClose flag. This is very useful for
+independent top-level windows in a multi-window application.
+\l{QObject}s emits the \l{QObject::destroyed()}{destroyed()}
+signal when they are deleted.
+If the last top-level window is closed, the
+QApplication::lastWindowClosed() signal is emitted.
+The isAccepted() function returns true if the event's receiver has
+agreed to close the widget; call accept() to agree to close the
+widget and call ignore() if the receiver of this event does not
+want the widget to be closed.
+\sa QWidget::close(), QWidget::hide(), QObject::destroyed(),
+QCoreApplication::exec(), QCoreApplication::quit(),
+QApplication::lastWindowClosed()
+*/
+/*!
+Constructs a close event object.
+\sa accept()
+*/
+QCloseEvent::QCloseEvent()
+: QEvent(Close)
+{}
+/*! \internal
+*/
+QCloseEvent::~QCloseEvent()
+{
+}
+/*!
+\class QIconDragEvent
+\brief The QIconDragEvent class indicates that a main icon drag has begun.
+\ingroup events
+Icon drag events are sent to widgets when the main icon of a window
+has been dragged away. On Mac OS X, this happens when the proxy
+icon of a window is dragged off the title bar.
+It is normal to begin using drag and drop in response to this
+event.
+\sa {Drag and Drop}, QMimeData, QDrag
+*/
+/*!
+Constructs an icon drag event object with the accept flag set to
+false.
+\sa accept()
+*/
+QIconDragEvent::QIconDragEvent()
+: QEvent(IconDrag)
+{ ignore(); }
+/*! \internal */
+QIconDragEvent::~QIconDragEvent()
+{
+}
+/*!
+\class QContextMenuEvent
+\brief The QContextMenuEvent class contains parameters that describe a context menu event.
+\ingroup events
+Context menu events are sent to widgets when a user performs
+an action associated with opening a context menu.
+The actions required to open context menus vary between platforms;
+for example, on Windows, pressing the menu button or clicking the
+right mouse button will cause this event to be sent.
+When this event occurs it is customary to show a QMenu with a
+context menu, if this is relevant to the context.
+Context menu events contain a special accept flag that indicates
+whether the receiver accepted the event. If the event handler does
+not accept the event then, if possible, whatever triggered the event will be
+handled as a regular input event.
+*/
+#ifndef QT_NO_CONTEXTMENU
+/*!
+Constructs a context menu event object with the accept parameter
+flag set to false.
+The \a reason parameter must be QContextMenuEvent::Mouse or
+QContextMenuEvent::Keyboard.
+The \a pos parameter specifies the mouse position relative to the
+receiving widget. \a globalPos is the mouse position in absolute
+coordinates.
+*/
+QContextMenuEvent::QContextMenuEvent(Reason reason, const QPoint &pos, const QPoint &globalPos)
+: QInputEvent(ContextMenu), p(pos), gp(globalPos), reas(reason)
+{}
+/*!
+Constructs a context menu event object with the accept parameter
+flag set to false.
+The \a reason parameter must be QContextMenuEvent::Mouse or
+QContextMenuEvent::Keyboard.
+The \a pos parameter specifies the mouse position relative to the
+receiving widget. \a globalPos is the mouse position in absolute
+coordinates. The \a modifiers holds the keyboard modifiers.
+*/
+QContextMenuEvent::QContextMenuEvent(Reason reason, const QPoint &pos, const QPoint &globalPos,
+Qt::KeyboardModifiers modifiers)
+: QInputEvent(ContextMenu, modifiers), p(pos), gp(globalPos), reas(reason)
+{}
+#ifdef QT3_SUPPORT
+/*!
+Constructs a context menu event with the given \a reason for the
+position specified by \a pos in widget coordinates and \a globalPos
+in global screen coordinates. \a dummy is ignored.
+*/
+QContextMenuEvent::QContextMenuEvent(Reason reason, const QPoint &pos, const QPoint &globalPos,
+int /* dummy */)
+: QInputEvent(ContextMenu), p(pos), gp(globalPos), reas(reason)
+{}
+#endif
+/*! \internal */
+QContextMenuEvent::~QContextMenuEvent()
+{
+}
+/*!
+Constructs a context menu event object with the accept parameter
+flag set to false.
+The \a reason parameter must be QContextMenuEvent::Mouse or
+QContextMenuEvent::Keyboard.
+The \a pos parameter specifies the mouse position relative to the
+receiving widget.
+The globalPos() is initialized to QCursor::pos(), which may not be
+appropriate. Use the other constructor to specify the global
+position explicitly.
+*/
+QContextMenuEvent::QContextMenuEvent(Reason reason, const QPoint &pos)
+: QInputEvent(ContextMenu), p(pos), reas(reason)
+{
+gp = QCursor::pos();
+}
+#ifdef QT3_SUPPORT
+/*!
+Constructs a context menu event with the given \a reason for the
+position specified by \a pos in widget coordinates. \a dummy is
+ignored.
+*/
+QContextMenuEvent::QContextMenuEvent(Reason reason, const QPoint &pos, int /* dummy */)
+: QInputEvent(ContextMenu), p(pos), reas(reason)
+{
+gp = QCursor::pos();
+}
+Qt::ButtonState QContextMenuEvent::state() const
+{
+return Qt::ButtonState(int(QApplication::keyboardModifiers())|QApplication::mouseButtons());
+}
+#endif
+/*!
+\fn const QPoint &QContextMenuEvent::pos() const
+Returns the position of the mouse pointer relative to the widget
+that received the event.
+\sa x(), y(), globalPos()
+*/
+/*!
+\fn int QContextMenuEvent::x() const
+Returns the x position of the mouse pointer, relative to the
+widget that received the event.
+\sa y(), pos()
+*/
+/*!
+\fn int QContextMenuEvent::y() const
+Returns the y position of the mouse pointer, relative to the
+widget that received the event.
+\sa x(), pos()
+*/
+/*!
+\fn const QPoint &QContextMenuEvent::globalPos() const
+Returns the global position of the mouse pointer at the time of
+the event.
+\sa x(), y(), pos()
+*/
+/*!
+\fn int QContextMenuEvent::globalX() const
+Returns the global x position of the mouse pointer at the time of
+the event.
+\sa globalY(), globalPos()
+*/
+/*!
+\fn int QContextMenuEvent::globalY() const
+Returns the global y position of the mouse pointer at the time of
+the event.
+\sa globalX(), globalPos()
+*/
+#endif // QT_NO_CONTEXTMENU
+/*!
+\fn Qt::ButtonState QContextMenuEvent::state() const
+Returns the button state (a combination of mouse buttons
+and keyboard modifiers) immediately before the event was
+generated.
+The returned value is a selection of the following values,
+combined with the OR operator:
+Qt::LeftButton, Qt::RightButton, Qt::MidButton,
+Qt::ShiftButton, Qt::ControlButton, and Qt::AltButton.
+*/
+/*!
+\enum QContextMenuEvent::Reason
+This enum describes the reason why the event was sent.
+\value Mouse The mouse caused the event to be sent. Normally this
+means the right mouse button was clicked, but this is platform
+dependent.
+\value Keyboard The keyboard caused this event to be sent. On
+Windows, this means the menu button was pressed.
+\value Other The event was sent by some other means (i.e. not by
+the mouse or keyboard).
+*/
+/*!
+\fn QContextMenuEvent::Reason QContextMenuEvent::reason() const
+Returns the reason for this context event.
+*/
+/*!
+\class QInputMethodEvent
+\brief The QInputMethodEvent class provides parameters for input method events.
+\ingroup events
+Input method events are sent to widgets when an input method is
+used to enter text into a widget. Input methods are widely used
+to enter text for languages with non-Latin alphabets.
+Note that when creating custom text editing widgets, the
+Qt::WA_InputMethodEnabled window attribute must be set explicitly
+(using the QWidget::setAttribute() function) in order to receive
+input method events.
+The events are of interest to authors of keyboard entry widgets
+who want to be able to correctly handle languages with complex
+character input. Text input in such languages is usually a three
+step process:
+\list 1
+\o \bold{Starting to Compose}
+When the user presses the first key on a keyboard, an input
+context is created. This input context will contain a string
+of the typed characters.
+\o \bold{Composing}
+With every new key pressed, the input method will try to create a
+matching string for the text typed so far called preedit
+string. While the input context is active, the user can only move
+the cursor inside the string belonging to this input context.
+\o \bold{Completing}
+At some point, the user will activate a user interface component
+(perhaps using a particular key) where they can choose from a
+number of strings matching the text they have typed so far. The
+user can either confirm their choice cancel the input; in either
+case the input context will be closed.
+\endlist
+QInputMethodEvent models these three stages, and transfers the
+information needed to correctly render the intermediate result. A
+QInputMethodEvent has two main parameters: preeditString() and
+commitString(). The preeditString() parameter gives the currently
+active preedit string. The commitString() parameter gives a text
+that should get added to (or replace parts of) the text of the
+editor widget. It usually is a result of the input operations and
+has to be inserted to the widgets text directly before the preedit
+string.
+If the commitString() should replace parts of the of the text in
+the editor, replacementLength() will contain the number of
+characters to be replaced. replacementStart() contains the position
+at which characters are to be replaced relative from the start of
+the preedit string.
+A number of attributes control the visual appearance of the
+preedit string (the visual appearance of text outside the preedit
+string is controlled by the widget only). The AttributeType enum
+describes the different attributes that can be set.
+A class implementing QWidget::inputMethodEvent() or
+QGraphicsItem::inputMethodEvent() should at least understand and
+honor the \l TextFormat and \l Cursor attributes.
+Since input methods need to be able to query certain properties
+from the widget or graphics item, subclasses must also implement
+QWidget::inputMethodQuery() and QGraphicsItem::inputMethodQuery(),
+respectively.
+When receiving an input method event, the text widget has to performs the
+following steps:
+\list 1
+\o If the widget has selected text, the selected text should get
+removed.
+\o Remove the text starting at replacementStart() with length
+replacementLength() and replace it by the commitString(). If
+replacementLength() is 0, replacementStart() gives the insertion
+position for the commitString().
+When doing replacement the area of the preedit
+string is ignored, thus a replacement starting at -1 with a length
+of 2 will remove the last character before the preedit string and
+the first character afterwards, and insert the commit string
+directly before the preedit string.
+If the widget implements undo/redo, this operation gets added to
+the undo stack.
+\o If there is no current preedit string, insert the
+preeditString() at the current cursor position; otherwise replace
+the previous preeditString with the one received from this event.
+If the widget implements undo/redo, the preeditString() should not
+influence the undo/redo stack in any way.
+The widget should examine the list of attributes to apply to the
+preedit string. It has to understand at least the TextFormat and
+Cursor attributes and render them as specified.
+\endlist
+\sa QInputContext
+*/
+/*!
+\enum QInputMethodEvent::AttributeType
+\value TextFormat
+A QTextCharFormat for the part of the preedit string specified by
+start and length. value contains a QVariant of type QTextFormat
+specifying rendering of this part of the preedit string. There
+should be at most one format for every part of the preedit
+string. If several are specified for any character in the string the
+behaviour is undefined. A conforming implementation has to at least
+honor the backgroundColor, textColor and fontUnderline properties
+of the format.
+\value Cursor If set, a cursor should be shown inside the preedit
+string at position start. The length variable determines whether
+the cursor is visible or not. If the length is 0 the cursor is
+invisible. If value is a QVariant of type QColor this color will
+be used for rendering the cursor, otherwise the color of the
+surrounding text will be used. There should be at most one Cursor
+attribute per event. If several are specified the behaviour is
+undefined.
+\value Language
+The variant contains a QLocale object specifying the language of a
+certain part of the preedit string. There should be at most one
+language set for every part of the preedit string. If several are
+specified for any character in the string the behavior is undefined.
+\value Ruby
+The ruby text for a part of the preedit string. There should be at
+most one ruby text set for every part of the preedit string. If
+several are specified for any character in the string the behaviour
+is undefined.
+\value Selection
+If set, the edit cursor should be moved to the specified position
+in the editor text contents. In contrast with \c Cursor, this
+attribute does not work on the preedit text, but on the surrounding
+text. The cursor will be moved after the commit string has been
+committed, and the preedit string will be located at the new edit
+position.
+The start position specifies the new position and the length
+variable can be used to set a selection starting from that point.
+The value is unused.
+\sa Attribute
+*/
+/*!
+\class QInputMethodEvent::Attribute
+\brief The QInputMethodEvent::Attribute class stores an input method attribute.
+*/
+/*!
+\fn QInputMethodEvent::Attribute::Attribute(AttributeType type, int start, int length, QVariant value)
+Constructs an input method attribute. \a type specifies the type
+of attribute, \a start and \a length the position of the
+attribute, and \a value the value of the attribute.
+*/
+/*!
+Constructs an event of type QEvent::InputMethod. The
+attributes(), preeditString(), commitString(), replacementStart(),
+and replacementLength() are initialized to default values.
+\sa setCommitString()
+*/
+QInputMethodEvent::QInputMethodEvent()
+: QEvent(QEvent::InputMethod), replace_from(0), replace_length(0)
+{
+}
+/*!
+Construcs an event of type QEvent::InputMethod. The
+preedit text is set to \a preeditText, the attributes to
+\a attributes.
+The commitString(), replacementStart(), and replacementLength()
+values can be set using setCommitString().
+\sa preeditString(), attributes()
+*/
+QInputMethodEvent::QInputMethodEvent(const QString &preeditText, const QList<Attribute> &attributes)
+: QEvent(QEvent::InputMethod), preedit(preeditText), attrs(attributes),
+replace_from(0), replace_length(0)
+{
+}
+/*!
+Constructs a copy of \a other.
+*/
+QInputMethodEvent::QInputMethodEvent(const QInputMethodEvent &other)
+: QEvent(QEvent::InputMethod), preedit(other.preedit), attrs(other.attrs),
+commit(other.commit), replace_from(other.replace_from), replace_length(other.replace_length)
+{
+}
+/*!
+Sets the commit string to \a commitString.
+The commit string is the text that should get added to (or
+replace parts of) the text of the editor widget. It usually is a
+result of the input operations and has to be inserted to the
+widgets text directly before the preedit string.
+If the commit string should replace parts of the of the text in
+the editor, \a replaceLength specifies the number of
+characters to be replaced. \a replaceFrom specifies the position
+at which characters are to be replaced relative from the start of
+the preedit string.
+\sa commitString(), replacementStart(), replacementLength()
+*/
+void QInputMethodEvent::setCommitString(const QString &commitString, int replaceFrom, int replaceLength)
+{
+commit = commitString;
+replace_from = replaceFrom;
+replace_length = replaceLength;
+}
+/*!
+\fn const QList<Attribute> &QInputMethodEvent::attributes() const
+Returns the list of attributes passed to the QInputMethodEvent
+constructor. The attributes control the visual appearance of the
+preedit string (the visual appearance of text outside the preedit
+string is controlled by the widget only).
+\sa preeditString(), Attribute
+*/
+/*!
+\fn const QString &QInputMethodEvent::preeditString() const
+Returns the preedit text, i.e. the text before the user started
+editing it.
+\sa commitString(), attributes()
+*/
+/*!
+\fn const QString &QInputMethodEvent::commitString() const
+Returns the text that should get added to (or replace parts of)
+the text of the editor widget. It usually is a result of the
+input operations and has to be inserted to the widgets text
+directly before the preedit string.
+\sa setCommitString(), preeditString(), replacementStart(), replacementLength()
+*/
+/*!
+\fn int QInputMethodEvent::replacementStart() const
+Returns the position at which characters are to be replaced relative
+from the start of the preedit string.
+\sa replacementLength(), setCommitString()
+*/
+/*!
+\fn int QInputMethodEvent::replacementLength() const
+Returns the number of characters to be replaced in the preedit
+string.
+\sa replacementStart(), setCommitString()
+*/
+#ifndef QT_NO_TABLETEVENT
+/*!
+\class QTabletEvent
+\brief The QTabletEvent class contains parameters that describe a Tablet event.
+\ingroup events
+Tablet Events are generated from a Wacom tablet. Most of the time you will
+want to deal with events from the tablet as if they were events from a
+mouse; for example, you would retrieve the cursor position with x(), y(),
+pos(), globalX(), globalY(), and globalPos(). In some situations you may
+wish to retrieve the extra information provided by the tablet device
+driver; for example, you might want to do subpixeling with higher
+resolution coordinates or you may want to adjust color brightness based on
+pressure.  QTabletEvent allows you to read the pressure(), the xTilt(), and
+yTilt(), as well as the type of device being used with device() (see
+\l{TabletDevice}). It can also give you the minimum and maximum values for
+each device's pressure and high resolution coordinates.
+A tablet event contains a special accept flag that indicates whether the
+receiver wants the event. You should call QTabletEvent::accept() if you
+handle the tablet event; otherwise it will be sent to the parent widget.
+The exception are TabletEnterProximity and TabletLeaveProximity events,
+these are only sent to QApplication and don't check whether or not they are
+accepted.
+The QWidget::setEnabled() function can be used to enable or
+disable mouse and keyboard events for a widget.
+The event handler QWidget::tabletEvent() receives all three types of
+tablet events. Qt will first send a tabletEvent then, if it is not
+accepted, it will send a mouse event. This allows applications that
+don't utilize tablets to use a tablet like a mouse, while also
+enabling those who want to use both tablets and mouses differently.
+\section1 Notes for X11 Users
+Qt uses the following hard-coded names to identify tablet
+devices from the xorg.conf file on X11 (apart from IRIX):
+'stylus', 'pen', and 'eraser'. If the devices have other names,
+they will not be picked up Qt.
+*/
+/*!
+\enum QTabletEvent::TabletDevice
+This enum defines what type of device is generating the event.
+\value NoDevice    No device, or an unknown device.
+\value Puck    A Puck (a device that is similar to a flat mouse with
+a transparent circle with cross-hairs).
+\value Stylus  A Stylus.
+\value Airbrush An airbrush
+\value FourDMouse A 4D Mouse.
+\value RotationStylus A special stylus that also knows about rotation
+(a 6D stylus). \since 4.1
+\omitvalue XFreeEraser
+*/
+/*!
+\enum QTabletEvent::PointerType
+This enum defines what type of point is generating the event.
+\value UnknownPointer    An unknown device.
+\value Pen    Tip end of a stylus-like device (the narrow end of the pen).
+\value Cursor  Any puck-like device.
+\value Eraser  Eraser end of a stylus-like device (the broad end of the pen).
+\sa pointerType()
+*/
+/*!
+Construct a tablet event of the given \a type.
+The \a pos parameter indicates where the event occurred in the
+widget; \a globalPos is the corresponding position in absolute
+coordinates. The \a hiResGlobalPos contains a high resolution
+measurement of the position.
+\a pressure contains the pressure exerted on the \a device.
+\a pointerType describes the type of pen that is being used.
+\a xTilt and \a yTilt contain the device's degree of tilt from the
+x and y axes respectively.
+\a keyState specifies which keyboard modifiers are pressed (e.g.,
+\key{Ctrl}).
+The \a uniqueID parameter contains the unique ID for the current device.
+The \a z parameter contains the coordinate of the device on the tablet, this
+is usually given by a wheel on 4D mouse. If the device does not support a
+Z-axis, pass zero here.
+The \a tangentialPressure paramater contins the tangential pressure of an air
+brush. If the device does not support tangential pressure, pass 0 here.
+\a rotation contains the device's rotation in degrees. 4D mice support
+rotation. If the device does not support rotation, pass 0 here.
+\sa pos() globalPos() device() pressure() xTilt() yTilt() uniqueId(), rotation(), tangentialPressure(), z()
+*/
+QTabletEvent::QTabletEvent(Type type, const QPoint &pos, const QPoint &globalPos,
+const QPointF &hiResGlobalPos, int device, int pointerType,
+qreal pressure, int xTilt, int yTilt, qreal tangentialPressure,
+qreal rotation, int z, Qt::KeyboardModifiers keyState, qint64 uniqueID)
+: QInputEvent(type, keyState),
+mPos(pos),
+mGPos(globalPos),
+mHiResGlobalPos(hiResGlobalPos),
+mDev(device),
+mPointerType(pointerType),
+mXT(xTilt),
+mYT(yTilt),
+mZ(z),
+mPress(pressure),
+mTangential(tangentialPressure),
+mRot(rotation),
+mUnique(uniqueID),
+mExtra(0)
+{
+}
+/*!
+\internal
+*/
+QTabletEvent::~QTabletEvent()
+{
+}
+/*!
+\fn TabletDevices QTabletEvent::device() const
+Returns the type of device that generated the event.
+\sa TabletDevice
+*/
+/*!
+\fn PointerType QTabletEvent::pointerType() const
+Returns the type of point that generated the event.
+*/
+/*!
+\fn qreal QTabletEvent::tangentialPressure() const
+Returns the tangential pressure for the device.  This is typically given by a finger
+wheel on an airbrush tool.  The range is from -1.0 to 1.0. 0.0 indicates a
+neutral position.  Current airbrushes can only move in the positive
+direction from the neutrual position. If the device does not support
+tangential pressure, this value is always 0.0.
+\sa pressure()
+*/
+/*!
+\fn qreal QTabletEvent::rotation() const
+Returns the rotation of the current device in degress. This is usually
+given by a 4D Mouse. If the device doesn't support rotation this value is
+always 0.0.
+*/
+/*!
+\fn qreal QTabletEvent::pressure() const
+Returns the pressure for the device. 0.0 indicates that the stylus is not
+on the tablet, 1.0 indicates the maximum amount of pressure for the stylus.
+\sa tangentialPressure()
+*/
+/*!
+\fn int QTabletEvent::xTilt() const
+Returns the angle between the device (a pen, for example) and the
+perpendicular in the direction of the x axis.
+Positive values are towards the tablet's physical right. The angle
+is in the range -60 to +60 degrees.
+\img qtabletevent-tilt.png
+\sa yTilt()
+*/
+/*!
+\fn int QTabletEvent::yTilt() const
+Returns the angle between the device (a pen, for example) and the
+perpendicular in the direction of the y axis.
+Positive values are towards the bottom of the tablet. The angle is
+within the range -60 to +60 degrees.
+\sa xTilt()
+*/
+/*!
+\fn const QPoint &QTabletEvent::pos() const
+Returns the position of the device, relative to the widget that
+received the event.
+If you move widgets around in response to mouse events, use
+globalPos() instead of this function.
+\sa x() y() globalPos()
+*/
+/*!
+\fn int QTabletEvent::x() const
+Returns the x position of the device, relative to the widget that
+received the event.
+\sa y() pos()
+*/
+/*!
+\fn int QTabletEvent::y() const
+Returns the y position of the device, relative to the widget that
+received the event.
+\sa x() pos()
+*/
+/*!
+\fn int QTabletEvent::z() const
+Returns the z position of the device. Typically this is represented by a
+wheel on a 4D Mouse. If the device does not support a Z-axis, this value is
+always zero. This is \bold not the same as pressure.
+\sa pressure()
+*/
+/*!
+\fn const QPoint &QTabletEvent::globalPos() const
+Returns the global position of the device \e{at the time of the
+event}. This is important on asynchronous windows systems like X11;
+whenever you move your widgets around in response to mouse events,
+globalPos() can differ significantly from the current position
+QCursor::pos().
+\sa globalX() globalY() hiResGlobalPos()
+*/
+/*!
+\fn int QTabletEvent::globalX() const
+Returns the global x position of the mouse pointer at the time of
+the event.
+\sa globalY() globalPos() hiResGlobalX()
+*/
+/*!
+\fn int QTabletEvent::globalY() const
+Returns the global y position of the tablet device at the time of
+the event.
+\sa globalX() globalPos() hiResGlobalY()
+*/
+/*!
+\fn qint64 QTabletEvent::uniqueId() const
+Returns a unique ID for the current device, making it possible
+to differentiate between multiple devices being used at the same
+time on the tablet.
+Support of this feature is dependent on the tablet.
+Values for the same device may vary from OS to OS.
+Later versions of the Wacom driver for Linux will now report
+the ID information. If you have a tablet that supports unique ID
+and are not getting the information on Linux, consider upgrading
+your driver.
+As of Qt 4.2, the unique ID is the same regardless of the orientation
+of the pen. Earlier versions would report a different value when using
+the eraser-end versus the pen-end of the stylus on some OS's.
+\sa pointerType()
+*/
+/*!
+\fn const QPointF &QTabletEvent::hiResGlobalPos() const
+The high precision coordinates delivered from the tablet expressed.
+Sub pixeling information is in the fractional part of the QPointF.
+\sa globalPos() hiResGlobalX() hiResGlobalY()
+*/
+/*!
+\fn qreal &QTabletEvent::hiResGlobalX() const
+The high precision x position of the tablet device.
+*/
+/*!
+\fn qreal &QTabletEvent::hiResGlobalY() const
+The high precision y position of the tablet device.
+*/
+#endif // QT_NO_TABLETEVENT
+#ifndef QT_NO_DRAGANDDROP
+/*!
+Creates a QDragMoveEvent of the required \a type indicating
+that the mouse is at position \a pos given within a widget.
+The mouse and keyboard states are specified by \a buttons and
+\a modifiers, and the \a actions describe the types of drag
+and drop operation that are possible.
+The drag data is passed as MIME-encoded information in \a data.
+\warning Do not attempt to create a QDragMoveEvent yourself.
+These objects rely on Qt's internal state.
+*/
+QDragMoveEvent::QDragMoveEvent(const QPoint& pos, Qt::DropActions actions, const QMimeData *data,
+Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers, Type type)
+: QDropEvent(pos, actions, data, buttons, modifiers, type)
+, rect(pos, QSize(1, 1))
+{}
+/*!
+Destroys the event.
+*/
+QDragMoveEvent::~QDragMoveEvent()
+{
+}
+/*!
+\fn void QDragMoveEvent::accept(bool y)
+Calls setAccepted(\a y) instead.
+*/
+/*!
+\fn void QDragMoveEvent::accept(const QRect &rectangle)
+The same as accept(), but also notifies that future moves will
+also be acceptable if they remain within the \a rectangle
+given on the widget. This can improve performance, but may
+also be ignored by the underlying system.
+If the rectangle is empty, drag move events will be sent
+continuously. This is useful if the source is scrolling in a
+timer event.
+*/
+/*!
+\fn void QDragMoveEvent::accept()
+\overload
+Calls QDropEvent::accept().
+*/
+/*!
+\fn void QDragMoveEvent::ignore()
+\overload
+Calls QDropEvent::ignore().
+*/
+/*!
+\fn void QDragMoveEvent::ignore(const QRect &rectangle)
+The opposite of the accept(const QRect&) function.
+Moves within the \a rectangle are not acceptable, and will be
+ignored.
+*/
+/*!
+\fn QRect QDragMoveEvent::answerRect() const
+Returns the rectangle in the widget where the drop will occur if accepted.
+You can use this information to restrict drops to certain places on the
+widget.
+*/
+/*!
+\class QDropEvent
+\ingroup events
+\ingroup draganddrop
+\brief The QDropEvent class provides an event which is sent when a
+drag and drop action is completed.
+When a widget \l{QWidget::setAcceptDrops()}{accepts drop events}, it will
+receive this event if it has accepted the most recent QDragEnterEvent or
+QDragMoveEvent sent to it.
+The drop event contains a proposed action, available from proposedAction(), for
+the widget to either accept or ignore. If the action can be handled by the
+widget, you should call the acceptProposedAction() function. Since the
+proposed action can be a combination of \l Qt::DropAction values, it may be
+useful to either select one of these values as a default action or ask
+the user to select their preferred action.
+If the proposed drop action is not suitable, perhaps because your custom
+widget does not support that action, you can replace it with any of the
+\l{possibleActions()}{possible drop actions} by calling setDropAction()
+with your preferred action. If you set a value that is not present in the
+bitwise OR combination of values returned by possibleActions(), the default
+copy action will be used. Once a replacement drop action has been set, call
+accept() instead of acceptProposedAction() to complete the drop operation.
+The mimeData() function provides the data dropped on the widget in a QMimeData
+object. This contains information about the MIME type of the data in addition to
+the data itself.
+\sa QMimeData, QDrag, {Drag and Drop}
+*/
+/*!
+\fn const QMimeData *QDropEvent::mimeData() const
+Returns the data that was dropped on the widget and its associated MIME
+type information.
+*/
+/*!
+Constructs a drop event of a certain \a type corresponding to a
+drop at the point specified by \a pos in the destination widget's
+coordinate system.
+The \a actions indicate which types of drag and drop operation can
+be performed, and the drag data is stored as MIME-encoded data in \a data.
+The states of the mouse buttons and keyboard modifiers at the time of
+the drop are specified by \a buttons and \a modifiers.
+*/ // ### pos is in which coordinate system?
+QDropEvent::QDropEvent(const QPoint& pos, Qt::DropActions actions, const QMimeData *data,
+Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers, Type type)
+: QEvent(type), p(pos), mouseState(buttons),
+modState(modifiers), act(actions),
+mdata(data)
+{
+default_action = QDragManager::self()->defaultAction(act, modifiers);
+drop_action = default_action;
+ignore();
+}
+/*! \internal */
+QDropEvent::~QDropEvent()
+{
+}
+/*!
+\compat
+Returns a byte array containing the drag's data, in \a format.
+data() normally needs to get the data from the drag source, which
+is potentially very slow, so it's advisable to call this function
+only if you're sure that you will need the data in that
+particular \a format.
+The resulting data will have a size of 0 if the format was not
+available.
+\sa format() QByteArray::size()
+*/
+QByteArray QDropEvent::encodedData(const char *format) const
+{
+return mdata->data(QLatin1String(format));
+}
+/*!
+\compat
+Returns a string describing one of the available data types for
+this drag. Common examples are "text/plain" and "image/gif".
+If \a n is less than zero or greater than the number of available
+data types, format() returns 0.
+This function is provided mainly for debugging. Most drop targets
+will use provides().
+\sa data() provides()
+*/
+const char* QDropEvent::format(int n) const
+{
+if (fmts.isEmpty()) {
+QStringList formats = mdata->formats();
+for (int i = 0; i < formats.size(); ++i)
+fmts.append(formats.at(i).toLatin1());
+}
+if (n < 0 || n >= fmts.size())
+return 0;
+return fmts.at(n).constData();
+}
+/*!
+\compat
+Returns true if this event provides format \a mimeType; otherwise
+returns false.
+\sa data()
+*/
+bool QDropEvent::provides(const char *mimeType) const
+{
+return mdata->formats().contains(QLatin1String(mimeType));
+}
+/*!
+If the source of the drag operation is a widget in this
+application, this function returns that source; otherwise it
+returns 0. The source of the operation is the first parameter to
+the QDrag object used instantiate the drag.
+This is useful if your widget needs special behavior when dragging
+to itself.
+\sa QDrag::QDrag()
+*/
+QWidget* QDropEvent::source() const
+{
+QDragManager *manager = QDragManager::self();
+return manager ? manager->source() : 0;
+}
+void QDropEvent::setDropAction(Qt::DropAction action)
+{
+if (!(action & act) && action != Qt::IgnoreAction)
+action = default_action;
+drop_action = action;
+}
+/*!
+\fn const QPoint& QDropEvent::pos() const
+Returns the position where the drop was made.
+*/
+/*!
+\fn Qt::MouseButtons QDropEvent::mouseButtons() const
+Returns the mouse buttons that are pressed..
+*/
+/*!
+\fn Qt::KeyboardModifiers QDropEvent::keyboardModifiers() const
+Returns the modifier keys that are pressed.
+*/
+/*!
+\fn void QDropEvent::accept()
+\internal
+*/
+/*!
+\fn void QDropEvent::accept(bool accept)
+Call setAccepted(\a accept) instead.
+*/
+/*!
+\fn void QDropEvent::acceptAction(bool accept = true)
+Call this to indicate that the action described by action() is
+accepted (i.e. if \a accept is true, which is the default), not merely
+the default copy action. If you call acceptAction(true), there is
+no need to also call accept(true).
+*/
+/*!
+\enum QDropEvent::Action
+\compat
+When a drag and drop action is completed, the target is expected
+to perform an action on the data provided by the source. This
+will be one of the following:
+\value Copy The default action. The source simply uses the data
+provided in the operation.
+\value Link The source should somehow create a link to the
+location specified by the data.
+\value Move The source should somehow move the object from the
+location specified by the data to a new location.
+\value Private  The target has special knowledge of the MIME type,
+which the source should respond to in a similar way to
+a Copy.
+\value UserAction  The source and target can co-operate using
+special actions. This feature is not currently
+supported.
+The Link and Move actions only makes sense if the data is a
+reference, for example, text/uri-list file lists (see QUriDrag).
+*/
+/*!
+\fn void QDropEvent::setDropAction(Qt::DropAction action)
+Sets the \a action to be performed on the data by the target.
+Use this to override the \l{proposedAction()}{proposed action}
+with one of the \l{possibleActions()}{possible actions}.
+If you set a drop action that is not one of the possible actions, the
+drag and drop operation will default to a copy operation.
+Once you have supplied a replacement drop action, call accept()
+instead of acceptProposedAction().
+\sa dropAction()
+*/
+/*!
+\fn Qt::DropAction QDropEvent::dropAction() const
+Returns the action to be performed on the data by the target. This may be
+different from the action supplied in proposedAction() if you have called
+setDropAction() to explicitly choose a drop action.
+\sa setDropAction()
+*/
+/*!
+\fn Qt::DropActions QDropEvent::possibleActions() const
+Returns an OR-combination of possible drop actions.
+\sa dropAction()
+*/
+/*!
+\fn Qt::DropAction QDropEvent::proposedAction() const
+Returns the proposed drop action.
+\sa dropAction()
+*/
+/*!
+\fn void QDropEvent::acceptProposedAction()
+Sets the drop action to be the proposed action.
+\sa setDropAction(), proposedAction(), {QEvent::accept()}{accept()}
+*/
+#ifdef QT3_SUPPORT
+/*!
+Use dropAction() instead.
+The table below shows the correspondance between the return type
+of action() and the return type of dropAction().
+\table
+\header \i Old enum value   \i New enum value
+\row    \i QDropEvent::Copy \i Qt::CopyAction
+\row    \i QDropEvent::Move \i Qt::MoveAction
+\row    \i QDropEvent::Link \i Qt::LinkAction
+\row    \i other            \i Qt::CopyAction
+\endtable
+*/
+QT3_SUPPORT QDropEvent::Action QDropEvent::action() const
+{
+switch(drop_action) {
+case Qt::CopyAction:
+return Copy;
+case Qt::MoveAction:
+return Move;
+case Qt::LinkAction:
+return Link;
+default:
+return Copy;
+}
+}
+#endif
+/*!
+\fn void QDropEvent::setPoint(const QPoint &point)
+\compat
+Sets the drop to happen at the given \a point. You do not normally
+need to use this as it will be set internally before your widget
+receives the drop event.
+*/ // ### here too - what coordinate system?
+/*!
+\class QDragEnterEvent
+\brief The QDragEnterEvent class provides an event which is sent
+to a widget when a drag and drop action enters it.
+\ingroup events
+\ingroup draganddrop
+A widget must accept this event in order to receive the \l
+{QDragMoveEvent}{drag move events} that are sent while the drag
+and drop action is in progress. The drag enter event is always
+immediately followed by a drag move event.
+QDragEnterEvent inherits most of its functionality from
+QDragMoveEvent, which in turn inherits most of its functionality
+from QDropEvent.
+\sa QDragLeaveEvent, QDragMoveEvent, QDropEvent
+*/
+/*!
+Constructs a QDragEnterEvent that represents a drag entering a
+widget at the given \a point with mouse and keyboard states specified by
+\a buttons and \a modifiers.
+The drag data is passed as MIME-encoded information in \a data, and the
+specified \a actions describe the possible types of drag and drop
+operation that can be performed.
+\warning Do not create a QDragEnterEvent yourself since these
+objects rely on Qt's internal state.
+*/
+QDragEnterEvent::QDragEnterEvent(const QPoint& point, Qt::DropActions actions, const QMimeData *data,
+Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers)
+: QDragMoveEvent(point, actions, data, buttons, modifiers, DragEnter)
+{}
+/*! \internal
+*/
+QDragEnterEvent::~QDragEnterEvent()
+{
+}
+/*!
+Constructs a drag response event containing the \a accepted value,
+indicating whether the drag and drop operation was accepted by the
+recipient.
+*/
+QDragResponseEvent::QDragResponseEvent(bool accepted)
+: QEvent(DragResponse), a(accepted)
+{}
+/*! \internal
+*/
+QDragResponseEvent::~QDragResponseEvent()
+{
+}
+/*!
+\class QDragMoveEvent
+\brief The QDragMoveEvent class provides an event which is sent while a drag and drop action is in progress.
+\ingroup events
+\ingroup draganddrop
+A widget will receive drag move events repeatedly while the drag
+is within its boundaries, if it accepts
+\l{QWidget::setAcceptDrops()}{drop events} and \l
+{QWidget::dragEnterEvent()}{enter events}. The widget should
+examine the event to see what kind of data it
+\l{QDragMoveEvent::provides()}{provides}, and call the accept()
+function to accept the drop if appropriate.
+The rectangle supplied by the answerRect() function can be used to restrict
+drops to certain parts of the widget. For example, we can check whether the
+rectangle intersects with the geometry of a certain child widget and only
+call \l{QDropEvent::acceptProposedAction()}{acceptProposedAction()} if that
+is the case.
+Note that this class inherits most of its functionality from
+QDropEvent.
+\sa QDragEnterEvent, QDragLeaveEvent, QDropEvent
+*/
+/*!
+\class QDragLeaveEvent
+\brief The QDragLeaveEvent class provides an event that is sent to a widget when a drag and drop action leaves it.
+\ingroup events
+\ingroup draganddrop
+This event is always preceded by a QDragEnterEvent and a series
+of \l{QDragMoveEvent}s. It is not sent if a QDropEvent is sent
+instead.
+\sa QDragEnterEvent, QDragMoveEvent, QDropEvent
+*/
+/*!
+Constructs a QDragLeaveEvent.
+\warning Do not create a QDragLeaveEvent yourself since these
+objects rely on Qt's internal state.
+*/
+QDragLeaveEvent::QDragLeaveEvent()
+: QEvent(DragLeave)
+{}
+/*! \internal
+*/
+QDragLeaveEvent::~QDragLeaveEvent()
+{
+}
+#endif // QT_NO_DRAGANDDROP
+/*!
+\class QHelpEvent
+\brief The QHelpEvent class provides an event that is used to request helpful information
+about a particular point in a widget.
+\ingroup events
+\ingroup helpsystem
+This event can be intercepted in applications to provide tooltips
+or "What's This?" help for custom widgets. The type() can be
+either QEvent::ToolTip or QEvent::WhatsThis.
+\sa QToolTip, QWhatsThis, QStatusTipEvent, QWhatsThisClickedEvent
+*/
+/*!
+Constructs a help event with the given \a type corresponding to the
+widget-relative position specified by \a pos and the global position
+specified by \a globalPos.
+\a type must be either QEvent::ToolTip or QEvent::WhatsThis.
+\sa pos(), globalPos()
+*/
+QHelpEvent::QHelpEvent(Type type, const QPoint &pos, const QPoint &globalPos)
+: QEvent(type), p(pos), gp(globalPos)
+{}
+/*!
+\fn int QHelpEvent::x() const
+Same as pos().x().
+\sa y(), pos(), globalPos()
+*/
+/*!
+\fn int QHelpEvent::y() const
+Same as pos().y().
+\sa x(), pos(), globalPos()
+*/
+/*!
+\fn int QHelpEvent::globalX() const
+Same as globalPos().x().
+\sa x(), globalY(), globalPos()
+*/
+/*!
+\fn int QHelpEvent::globalY() const
+Same as globalPos().y().
+\sa y(), globalX(), globalPos()
+*/
+/*!
+\fn const QPoint &QHelpEvent::pos()  const
+Returns the mouse cursor position when the event was generated,
+relative to the widget to which the event is dispatched.
+\sa globalPos(), x(), y()
+*/
+/*!
+\fn const QPoint &QHelpEvent::globalPos() const
+Returns the mouse cursor position when the event was generated
+in global coordinates.
+\sa pos(), globalX(), globalY()
+*/
+/*! \internal
+*/
+QHelpEvent::~QHelpEvent()
+{
+}
+#ifndef QT_NO_STATUSTIP
+/*!
+\class QStatusTipEvent
+\brief The QStatusTipEvent class provides an event that is used to show messages in a status bar.
+\ingroup events
+\ingroup helpsystem
+Status tips can be set on a widget using the
+QWidget::setStatusTip() function.  They are shown in the status
+bar when the mouse cursor enters the widget. For example:
+\table 100%
+\row
+\o
+\snippet doc/src/snippets/qstatustipevent/main.cpp 1
+\dots
+\snippet doc/src/snippets/qstatustipevent/main.cpp 3
+\o
+\image qstatustipevent-widget.png Widget with status tip.
+\endtable
+Status tips can also be set on actions using the
+QAction::setStatusTip() function:
+\table 100%
+\row
+\o
+\snippet doc/src/snippets/qstatustipevent/main.cpp 0
+\snippet doc/src/snippets/qstatustipevent/main.cpp 2
+\dots
+\snippet doc/src/snippets/qstatustipevent/main.cpp 3
+\o
+\image qstatustipevent-action.png Action with status tip.
+\endtable
+Finally, status tips are supported for the item view classes
+through the Qt::StatusTipRole enum value.
+\sa QStatusBar, QHelpEvent, QWhatsThisClickedEvent
+*/
+/*!
+Constructs a status tip event with the text specified by \a tip.
+\sa tip()
+*/
+QStatusTipEvent::QStatusTipEvent(const QString &tip)
+: QEvent(StatusTip), s(tip)
+{}
+/*! \internal
+*/
+QStatusTipEvent::~QStatusTipEvent()
+{
+}
+/*!
+\fn QString QStatusTipEvent::tip() const
+Returns the message to show in the status bar.
+\sa QStatusBar::showMessage()
+*/
+#endif // QT_NO_STATUSTIP
+#ifndef QT_NO_WHATSTHIS
+/*!
+\class QWhatsThisClickedEvent
+\brief The QWhatsThisClickedEvent class provides an event that
+can be used to handle hyperlinks in a "What's This?" text.
+\ingroup events
+\ingroup helpsystem
+\sa QWhatsThis, QHelpEvent, QStatusTipEvent
+*/
+/*!
+Constructs an event containing a URL specified by \a href when a link
+is clicked in a "What's This?" message.
+\sa href()
+*/
+QWhatsThisClickedEvent::QWhatsThisClickedEvent(const QString &href)
+: QEvent(WhatsThisClicked), s(href)
+{}
+/*! \internal
+*/
+QWhatsThisClickedEvent::~QWhatsThisClickedEvent()
+{
+}
+/*!
+\fn QString QWhatsThisClickedEvent::href() const
+Returns the URL that was clicked by the user in the "What's
+This?" text.
+*/
+#endif // QT_NO_WHATSTHIS
+#ifndef QT_NO_ACTION
+/*!
+\class QActionEvent
+\brief The QActionEvent class provides an event that is generated
+when a QAction is added, removed, or changed.
+\ingroup events
+Actions can be added to widgets using QWidget::addAction(). This
+generates an \l ActionAdded event, which you can handle to provide
+custom behavior. For example, QToolBar reimplements
+QWidget::actionEvent() to create \l{QToolButton}s for the
+actions.
+\sa QAction, QWidget::addAction(), QWidget::removeAction(), QWidget::actions()
+*/
+/*!
+Constructs an action event. The \a type can be \l ActionChanged,
+\l ActionAdded, or \l ActionRemoved.
+\a action is the action that is changed, added, or removed. If \a
+type is ActionAdded, the action is to be inserted before the
+action \a before. If \a before is 0, the action is appended.
+*/
+QActionEvent::QActionEvent(int type, QAction *action, QAction *before)
+: QEvent(static_cast<QEvent::Type>(type)), act(action), bef(before)
+{}
+/*! \internal
+*/
+QActionEvent::~QActionEvent()
+{
+}
+/*!
+\fn QAction *QActionEvent::action() const
+Returns the action that is changed, added, or removed.
+\sa before()
+*/
+/*!
+\fn QAction *QActionEvent::before() const
+If type() is \l ActionAdded, returns the action that should
+appear before action(). If this function returns 0, the action
+should be appended to already existing actions on the same
+widget.
+\sa action(), QWidget::actions()
+*/
+#endif // QT_NO_ACTION
+/*!
+\class QHideEvent
+\brief The QHideEvent class provides an event which is sent after a widget is hidden.
+\ingroup events
+This event is sent just before QWidget::hide() returns, and also
+when a top-level window has been hidden (iconified) by the user.
+If spontaneous() is true, the event originated outside the
+application. In this case, the user hid the window using the
+window manager controls, either by iconifying the window or by
+switching to another virtual desktop where the window isn't
+visible. The window will become hidden but not withdrawn. If the
+window was iconified, QWidget::isMinimized() returns true.
+\sa QShowEvent
+*/
+/*!
+Constructs a QHideEvent.
+*/
+QHideEvent::QHideEvent()
+: QEvent(Hide)
+{}
+/*! \internal
+*/
+QHideEvent::~QHideEvent()
+{
+}
+/*!
+\class QShowEvent
+\brief The QShowEvent class provides an event that is sent when a widget is shown.
+\ingroup events
+There are two kinds of show events: show events caused by the
+window system (spontaneous), and internal show events. Spontaneous (QEvent::spontaneous())
+show events are sent just after the window system shows the
+window; they are also sent when a top-level window is redisplayed
+after being iconified. Internal show events are delivered just
+before the widget becomes visible.
+\sa QHideEvent
+*/
+/*!
+Constructs a QShowEvent.
+*/
+QShowEvent::QShowEvent()
+: QEvent(Show)
+{}
+/*! \internal
+*/
+QShowEvent::~QShowEvent()
+{
+}
+/*!
+\fn QByteArray QDropEvent::data(const char* f) const
+\obsolete
+The encoded data is in \a f.
+Use QDropEvent::encodedData().
+*/
+/*!
+\class QFileOpenEvent
+\brief The QFileOpenEvent class provides an event that will be
+sent when there is a request to open a file.
+\ingroup events
+File open events will be sent to the QApplication::instance()
+when the operating system requests that a file be opened. This is
+a high-level event that can be caused by different user actions
+depending on the user's desktop environment; for example, double
+clicking on an file icon in the Finder on Mac OS X.
+This event is only used to notify the application of a request.
+It may be safely ignored.
+\note This class is currently supported for Mac Os X only.
+*/
+/*!
+\internal
+Constructs a file open event for the given \a file.
+*/
+QFileOpenEvent::QFileOpenEvent(const QString &file)
+: QEvent(FileOpen), f(file)
+{}
+/*! \internal
+*/
+QFileOpenEvent::~QFileOpenEvent()
+{
+}
+/*!
+\fn QString QFileOpenEvent::file() const
+Returns the file that is being opened.
+*/
+#ifndef QT_NO_TOOLBAR
+/*!
+\internal
+\class QToolBarChangeEvent
+\brief The QToolBarChangeEvent class provides an event that is
+sent whenever a the toolbar button is clicked on Mac OS X.
+\ingroup events
+The QToolBarChangeEvent is sent when the toolbar button is clicked. On Mac
+OS X, this is the long oblong button on the right side of the window
+title bar. The default implementation is to toggle the appearance (hidden or
+shown) of the associated toolbars for the window.
+*/
+/*!
+\internal
+Construct a QToolBarChangeEvent given the current button state in \a state.
+*/
+QToolBarChangeEvent::QToolBarChangeEvent(bool t)
+: QEvent(ToolBarChange), tog(t)
+{}
+/*! \internal
+*/
+QToolBarChangeEvent::~QToolBarChangeEvent()
+{
+}
+/*!
+\fn bool QToolBarChangeEvent::toggle() const
+\internal
+*/
+/*
+\fn Qt::ButtonState QToolBarChangeEvent::state() const
+Returns the keyboard modifier flags at the time of the event.
+The returned value is a selection of the following values,
+combined using the OR operator:
+Qt::ShiftButton, Qt::ControlButton, Qt::MetaButton, and Qt::AltButton.
+*/
+#endif // QT_NO_TOOLBAR
+#ifndef QT_NO_SHORTCUT
+/*!
+Constructs a shortcut event for the given \a key press,
+associated with the QShortcut ID \a id.
+\a ambiguous specifies whether there is more than one QShortcut
+for the same key sequence.
+*/
+QShortcutEvent::QShortcutEvent(const QKeySequence &key, int id, bool ambiguous)
+: QEvent(Shortcut), sequence(key), ambig(ambiguous), sid(id)
+{
+}
+/*!
+Destroys the event object.
+*/
+QShortcutEvent::~QShortcutEvent()
+{
+}
+#endif // QT_NO_SHORTCUT
+#ifndef QT_NO_DEBUG_STREAM
+QDebug operator<<(QDebug dbg, const QEvent *e) {
+#ifndef Q_BROKEN_DEBUG_STREAM
+// More useful event output could be added here
+if (!e)
+return dbg << "QEvent(this = 0x0)";
+const char *n = 0;
+switch (e->type()) {
+case QEvent::Timer:
+n = "Timer";
+break;
+case QEvent::MouseButtonPress:
+case QEvent::MouseMove:
+case QEvent::MouseButtonRelease:
+case QEvent::MouseButtonDblClick:
+{
+const QMouseEvent *me = static_cast<const QMouseEvent*>(e);
+switch(me->type()) {
+case QEvent::MouseButtonPress:
+n = "MouseButtonPress";
+break;
+case QEvent::MouseMove:
+n = "MouseMove";
+break;
+case QEvent::MouseButtonRelease:
+n = "MouseButtonRelease";
+break;
+case QEvent::MouseButtonDblClick:
+default:
+n = "MouseButtonDblClick";
+break;
+}
+dbg.nospace() << "QMouseEvent("  << n
+<< ", " << me->button()
+<< ", " << hex << (int)me->buttons()
+<< ", " << hex << (int)me->modifiers()
+<< ')';
+}
+return dbg.space();
+#ifndef QT_NO_TOOLTIP
+case QEvent::ToolTip:
+n = "ToolTip";
+break;
+#endif
+case QEvent::WindowActivate:
+n = "WindowActivate";
+break;
+case QEvent::WindowDeactivate:
+n = "WindowDeactivate";
+break;
+case QEvent::ActivationChange:
+n = "ActivationChange";
+break;
+#ifndef QT_NO_WHEELEVENT
+case QEvent::Wheel:
+dbg.nospace() << "QWheelEvent("  << static_cast<const QWheelEvent *>(e)->delta()
+<< ')';
+return dbg.space();
+#endif
+case QEvent::KeyPress:
+case QEvent::KeyRelease:
+case QEvent::ShortcutOverride:
+{
+const QKeyEvent *ke = static_cast<const QKeyEvent*>(e);
+switch(ke->type()) {
+case QEvent::ShortcutOverride:
+n = "ShortcutOverride";
+break;
+case QEvent::KeyRelease:
+n = "KeyRelease";
+break;
+case QEvent::KeyPress:
+default:
+n = "KeyPress";
+break;
+}
+dbg.nospace() << "QKeyEvent("  << n
+<< ", " << hex << ke->key()
+<< ", " << hex << (int)ke->modifiers()
+<< ", \"" << ke->text()
+<< "\", " << ke->isAutoRepeat()
+<< ", " << ke->count()
+<< ')';
+}
+return dbg.space();
+case QEvent::FocusIn:
+n = "FocusIn";
+break;
+case QEvent::FocusOut:
+n = "FocusOut";
+break;
+case QEvent::Enter:
+n = "Enter";
+break;
+case QEvent::Leave:
+n = "Leave";
+break;
+case QEvent::PaletteChange:
+n = "PaletteChange";
+break;
+case QEvent::PolishRequest:
+n = "PolishRequest";
+break;
+case QEvent::Polish:
+n = "Polish";
+break;
+case QEvent::UpdateRequest:
+n = "UpdateRequest";
+break;
+case QEvent::Paint:
+n = "Paint";
+break;
+case QEvent::Move:
+n = "Move";
+break;
+case QEvent::Resize:
+n = "Resize";
+break;
+case QEvent::Create:
+n = "Create";
+break;
+case QEvent::Destroy:
+n = "Destroy";
+break;
+case QEvent::Close:
+n = "Close";
+break;
+case QEvent::Quit:
+n = "Quit";
+break;
+case QEvent::FileOpen:
+n = "FileOpen";
+break;
+case QEvent::Show:
+n = "Show";
+break;
+case QEvent::ShowToParent:
+n = "ShowToParent";
+break;
+case QEvent::Hide:
+n = "Hide";
+break;
+case QEvent::HideToParent:
+n = "HideToParent";
+break;
+case QEvent::None:
+n = "None";
+break;
+case QEvent::ParentChange:
+n = "ParentChange";
+break;
+case QEvent::ParentAboutToChange:
+n = "ParentAboutToChange";
+break;
+case QEvent::HoverEnter:
+n = "HoverEnter";
+break;
+case QEvent::HoverMove:
+n = "HoverMove";
+break;
+case QEvent::HoverLeave:
+n = "HoverLeave";
+break;
+case QEvent::ZOrderChange:
+n = "ZOrderChange";
+break;
+case QEvent::StyleChange:
+n = "StyleChange";
+break;
+case QEvent::DragEnter:
+n = "DragEnter";
+break;
+case QEvent::DragMove:
+n = "DragMove";
+break;
+case QEvent::DragLeave:
+n = "DragLeave";
+break;
+case QEvent::Drop:
+n = "Drop";
+break;
+case QEvent::GraphicsSceneMouseMove:
+n = "GraphicsSceneMouseMove";
+break;
+case QEvent::GraphicsSceneMousePress:
+n = "GraphicsSceneMousePress";
+break;
+case QEvent::GraphicsSceneMouseRelease:
+n = "GraphicsSceneMouseRelease";
+break;
+case QEvent::GraphicsSceneMouseDoubleClick:
+n = "GraphicsSceneMouseDoubleClick";
+break;
+case QEvent::GraphicsSceneContextMenu:
+n = "GraphicsSceneContextMenu";
+break;
+case QEvent::GraphicsSceneHoverEnter:
+n = "GraphicsSceneHoverEnter";
+break;
+case QEvent::GraphicsSceneHoverMove:
+n = "GraphicsSceneHoverMove";
+break;
+case QEvent::GraphicsSceneHoverLeave:
+n = "GraphicsSceneHoverLeave";
+break;
+case QEvent::GraphicsSceneHelp:
+n = "GraphicsSceneHelp";
+break;
+case QEvent::GraphicsSceneDragEnter:
+n = "GraphicsSceneDragEnter";
+break;
+case QEvent::GraphicsSceneDragMove:
+n = "GraphicsSceneDragMove";
+break;
+case QEvent::GraphicsSceneDragLeave:
+n = "GraphicsSceneDragLeave";
+break;
+case QEvent::GraphicsSceneDrop:
+n = "GraphicsSceneDrop";
+break;
+case QEvent::GraphicsSceneWheel:
+n = "GraphicsSceneWheel";
+break;
+case QEvent::GraphicsSceneResize:
+n = "GraphicsSceneResize";
+break;
+case QEvent::GraphicsSceneMove:
+n = "GraphicsSceneMove";
+break;
+case QEvent::CursorChange:
+n = "CursorChange";
+break;
+case QEvent::ToolTipChange:
+n = "ToolTipChange";
+break;
+case QEvent::StatusTip:
+n = "StatusTip";
+break;
+case QEvent::WhatsThis:
+n = "WhatsThis";
+break;
+case QEvent::FontChange:
+n = "FontChange";
+break;
+case QEvent::Style:
+n = "Style";
+break;
+case QEvent::KeyboardLayoutChange:
+n = "KeyboardLayoutChange";
+break;
+case QEvent::DynamicPropertyChange:
+n = "DynamicPropertyChange";
+break;
+case QEvent::GrabMouse:
+n = "GrabMouse";
+break;
+case QEvent::UngrabMouse:
+n = "UngrabMouse";
+break;
+case QEvent::GrabKeyboard:
+n = "GrabKeyboard";
+break;
+case QEvent::UngrabKeyboard:
+n = "UngrabKeyboard";
+break;
+#ifdef QT3_SUPPORT
+case QEvent::ChildInsertedRequest:
+n = "ChildInsertedRequest";
+break;
+case QEvent::ChildInserted: n = "ChildInserted";
+#endif
+case QEvent::ChildAdded: n = n ? n : "ChildAdded";
+case QEvent::ChildPolished: n = n ? n : "ChildPolished";
+case QEvent::ChildRemoved: n = n ? n : "ChildRemoved";
+dbg.nospace() << "QChildEvent(" << n << ", " << (static_cast<const QChildEvent*>(e))->child();
+return dbg.space();
+case QEvent::Gesture:
+n = "Gesture";
+break;
+default:
+dbg.nospace() << "QEvent(" << (const void *)e << ", type = " << e->type() << ')';
+return dbg.space();
+}
+dbg.nospace() << 'Q' << n << "Event(" << (const void *)e << ')';
+return dbg.space();
+#else
+qWarning("This compiler doesn't support streaming QEvent to QDebug");
+return dbg;
+Q_UNUSED(e);
+#endif
+}
+#endif
+#ifndef QT_NO_CLIPBOARD
+/*!
+\class QClipboardEvent
+\ingroup events
+\internal
+\brief The QClipboardEvent class provides the parameters used in a clipboard event.
+This class is for internal use only, and exists to aid the clipboard on various
+platforms to get all the information it needs. Use QEvent::Clipboard instead.
+\sa QClipboard
+*/
+QClipboardEvent::QClipboardEvent(QEventPrivate *data)
+: QEvent(QEvent::Clipboard)
+{
+d = data;
+}
+QClipboardEvent::~QClipboardEvent()
+{
+}
+#endif // QT_NO_CLIPBOARD
+/*!
+\class QShortcutEvent
+\brief The QShortcutEvent class provides an event which is generated when
+the user presses a key combination.
+\ingroup events
+Normally you don't need to use this class directly; QShortcut
+provides a higher-level interface to handle shortcut keys.
+\sa QShortcut
+*/
+/*!
+\fn const QKeySequence &QShortcutEvent::key() const
+Returns the key sequence that triggered the event.
+*/
+// ### Qt 5: remove
+/*!
+\fn const QKeySequence &QShortcutEvent::key()
+\internal
+*/
+/*!
+\fn int QShortcutEvent::shortcutId() const
+Returns the ID of the QShortcut object for which this event was
+generated.
+\sa QShortcut::id()
+*/
+// ### Qt 5: remove
+/*!
+\fn int QShortcutEvent::shortcutId()
+\overload
+\internal
+*/
+/*!
+\fn bool QShortcutEvent::isAmbiguous() const
+Returns true if the key sequence that triggered the event is
+ambiguous.
+\sa QShortcut::activatedAmbiguously()
+*/
+// ### Qt 5: remove
+/*!
+\fn bool QShortcutEvent::isAmbiguous()
+\internal
+*/
+/*!
+\class QWindowStateChangeEvent
+\ingroup events
+\brief The QWindowStateChangeEvent class provides the window state before a
+window state change.
+*/
+/*! \fn Qt::WindowStates QWindowStateChangeEvent::oldState() const
+Returns the state of the window before the change.
+*/
+/*! \internal
+*/
+QWindowStateChangeEvent::QWindowStateChangeEvent(Qt::WindowStates s)
+: QEvent(WindowStateChange), ostate(s)
+{
+}
+/*! \internal
+*/
+QWindowStateChangeEvent::QWindowStateChangeEvent(Qt::WindowStates s, bool isOverride)
+: QEvent(WindowStateChange), ostate(s)
+{
+if (isOverride)
+d = (QEventPrivate*)(this);
+}
+/*! \internal
+*/
+bool QWindowStateChangeEvent::isOverride() const
+{
+return (d != 0);
+}
+/*! \internal
+*/
+QWindowStateChangeEvent::~QWindowStateChangeEvent()
+{
+}
+#ifdef QT3_SUPPORT
+/*!
+\class QMenubarUpdatedEvent
+\internal
+Event sent by QMenuBar to tell Q3Workspace to update itself.
+*/
+/*! \internal
+*/
+QMenubarUpdatedEvent::QMenubarUpdatedEvent(QMenuBar * const menuBar)
+:QEvent(QEvent::MenubarUpdated), m_menuBar(menuBar) {}
+/*!
+\fn QMenuBar *QMenubarUpdatedEvent::menuBar()
+\internal
+*/
+/*!
+\fn bool operator==(QKeyEvent *e, QKeySequence::StandardKey key)
+\relates QKeyEvent
+Returns true if \a key is currently bound to the key combination
+specified by \a e.
+Equivalent to \c {e->matches(key)}.
+*/
+/*!
+\fn bool operator==(QKeySequence::StandardKey key, QKeyEvent *e)
+\relates QKeyEvent
+Returns true if \a key is currently bound to the key combination
+specified by \a e.
+Equivalent to \c {e->matches(key)}.
+*/
+/*!
+\internal
+\class QKeyEventEx
+\ingroup events
+\brief The QKeyEventEx class provides more extended information about a keyevent.
+This class is for internal use only, and exists to aid the shortcut system on
+various platforms to get all the information it needs.
+*/
+#endif
+/*!
+\class QTouchEvent
+\brief The QTouchEvent class contains parameters that describe a touch event.
+\since 4.6
+\ingroup events
+\ingroup multitouch
+\section1 Enabling Touch Events
+Touch events occur when pressing, releasing, or moving one or more touch points on a touch
+device (such as a touch-screen or track-pad). To receive touch events, widgets have to have the
+Qt::WA_AcceptTouchEvents attribute set and graphics items need to have the
+\l{QGraphicsItem::setAcceptTouchEvents()}{acceptTouchEvents} attribute set to true.
+When using QAbstractScrollArea based widgets, you should enable the Qt::WA_AcceptTouchEvents
+attribute on the scroll area's \l{QAbstractScrollArea::viewport()}{viewport}.
+Similarly to QMouseEvent, Qt automatically grabs each touch point on the first press inside a
+widget, and the widget will receive all updates for the touch point until it is released.
+Note that it is possible for a widget to receive events for multiple touch points, and that
+multiple widgets may be receiving touch events at the same time.
+\section1 Event Handling
+All touch events are of type QEvent::TouchBegin, QEvent::TouchUpdate, or QEvent::TouchEnd.
+Reimplement QWidget::event() or QAbstractScrollArea::viewportEvent() for widgets and
+QGraphicsItem::sceneEvent() for items in a graphics view to receive touch events.
+The QEvent::TouchUpdate and QEvent::TouchEnd events are sent to the widget or item that
+accepted the QEvent::TouchBegin event. If the QEvent::TouchBegin event is not accepted and not
+filtered by an event filter, then no further touch events are sent until the next
+QEvent::TouchBegin.
+The touchPoints() function returns a list of all touch points contained in the event.
+Information about each touch point can be retrieved using the QTouchEvent::TouchPoint class.
+The Qt::TouchPointState enum describes the different states that a touch point may have.
+\section1 Event Delivery and Propagation
+By default, QWidget::event() translates the first non-primary touch point in a QTouchEvent into
+a QMouseEvent. This makes it possible to enable touch events on existing widgets that do not
+normally handle QTouchEvent. See below for information on some special considerations needed
+when doing this.
+QEvent::TouchBegin is the first touch event sent to a widget. The QEvent::TouchBegin event
+contains a special accept flag that indicates whether the receiver wants the event. By default,
+the event is accepted. You should call ignore() if the touch event is not handled by your
+widget. The QEvent::TouchBegin event is propagated up the parent widget chain until a widget
+accepts it with accept(), or an event filter consumes it. For QGraphicsItems, the
+QEvent::TouchBegin event is propagated to items under the mouse (similar to mouse event
+propagation for QGraphicsItems).
+\section1 Touch Point Grouping
+As mentioned above, it is possible that several widgets can be receiving QTouchEvents at the
+same time. However, Qt makes sure to never send duplicate QEvent::TouchBegin events to the same
+widget, which could theoretically happen during propagation if, for example, the user touched 2
+separate widgets in a QGroupBox and both widgets ignored the QEvent::TouchBegin event.
+To avoid this, Qt will group new touch points together using the following rules:
+\list
+\i When the first touch point is detected, the destination widget is determined firstly by the
+location on screen and secondly by the propagation rules.
+\i When additional touch points are detected, Qt first looks to see if there are any active
+touch points on any ancestor or descendent of the widget under the new touch point. If there
+are, the new touch point is grouped with the first, and the new touch point will be sent in a
+single QTouchEvent to the widget that handled the first touch point. (The widget under the new
+touch point will not receive an event).
+\endlist
+This makes it possible for sibling widgets to handle touch events independently while making
+sure that the sequence of QTouchEvents is always correct.
+\section1 Mouse Events and the Primary Touch Point
+QTouchEvent delivery is independent from that of QMouseEvent. On some windowing systems, mouse
+events are also sent for the \l{QTouchEvent::TouchPoint::isPrimary()}{primary touch point}.
+This means it is possible for your widget to receive both QTouchEvent and QMouseEvent for the
+same user interaction point. You can use the QTouchEvent::TouchPoint::isPrimary() function to
+identify the primary touch point.
+Note that on some systems, it is possible to receive touch events without a primary touch
+point. All this means is that there will be no mouse event generated for the touch points in
+the QTouchEvent.
+\section1 Caveats
+\list
+\i As mentioned above, enabling touch events means multiple widgets can be receiving touch
+events simultaneously. Combined with the default QWidget::event() handling for QTouchEvents,
+this gives you great flexibility in designing multi-touch user interfaces. Be aware of the
+implications. For example, it is possible that the user is moving a QSlider with one finger and
+pressing a QPushButton with another. The signals emitted by these widgets will be
+interleaved.
+\i Recursion into the event loop using one of the exec() methods (e.g., QDialog::exec() or
+QMenu::exec()) in a QTouchEvent event handler is not supported. Since there are multiple event
+recipients, recursion may cause problems, including but not limited to lost events
+and unexpected infinite recursion.
+\i QTouchEvents are not affected by a \l{QWidget::grabMouse()}{mouse grab} or an
+\l{QApplication::activePopupWidget()}{active pop-up widget}. The behavior of QTouchEvents is
+undefined when opening a pop-up or grabbing the mouse while there are multiple active touch
+points.
+\endlist
+\sa QTouchEvent::TouchPoint, Qt::TouchPointState, Qt::WA_AcceptTouchEvents,
+QGraphicsItem::acceptTouchEvents()
+*/
+/*! \enum Qt::TouchPointState
+\since 4.6
+This enum represents the state of a touch point at the time the
+QTouchEvent occurred.
+\value TouchPointPressed The touch point is now pressed.
+\value TouchPointMoved The touch point moved.
+\value TouchPointStationary The touch point did not move.
+\value TouchPointReleased The touch point was released.
+\omitvalue TouchPointStateMask
+\omitvalue TouchPointPrimary
+*/
+/*! \enum QTouchEvent::DeviceType
+This enum represents the type of device that generated a QTouchEvent.
+\value TouchScreen In this type of device, the touch surface and display are integrated. This
+means the surface and display typically have the same size, such that there
+is a direct relationship between the touch points' physical positions and the
+coordinate reported by QTouchEvent::TouchPoint. As a result, Qt allows the
+user to interact directly with multiple QWidgets and QGraphicsItems at the
+same time.
+\value TouchPad In this type of device, the touch surface is separate from the display. There
+is not a direct relationship between the physical touch location and the
+on-screen coordinates. Instead, they are calculated relative to the current
+mouse position, and the user must use the touch-pad to move this reference
+point. Unlike touch-screens, Qt allows users to only interact with a single
+QWidget or QGraphicsItem at a time.
+*/
+/*!
+Constructs a QTouchEvent with the given \a eventType, \a deviceType, and \a touchPoints.
+The \a touchPointStates and \a modifiers are the current touch point states and keyboard
+modifiers at the time of the event.
+*/
+QTouchEvent::QTouchEvent(QEvent::Type eventType,
+QTouchEvent::DeviceType deviceType,
+Qt::KeyboardModifiers modifiers,
+Qt::TouchPointStates touchPointStates,
+const QList<QTouchEvent::TouchPoint> &touchPoints)
+: QInputEvent(eventType, modifiers),
+_widget(0),
+_deviceType(deviceType),
+_touchPointStates(touchPointStates),
+_touchPoints(touchPoints)
+{ }
+/*!
+Destroys the QTouchEvent.
+*/
+QTouchEvent::~QTouchEvent()
+{ }
+/*! \fn QWidget *QTouchEvent::widget() const
+Returns the widget on which the event occurred.
+*/
+/*! \fn Qt::TouchPointStates QTouchEvent::touchPointStates() const
+Returns a bitwise OR of all the touch point states for this event.
+*/
+/*! \fn const QList<QTouchEvent::TouchPoint> &QTouchEvent::touchPoints() const
+Returns the list of touch points contained in the touch event.
+*/
+/*! \fn QTouchEvent::DeviceType QTouchEvent::deviceType() const
+Returns the touch device Type, which is of type \l {QTouchEvent::DeviceType} {DeviceType}.
+*/
+/*! \fn void QTouchEvent::setWidget(QWidget *widget)
+\internal
+Sets the widget for this event.
+*/
+/*! \fn void QTouchEvent::setTouchPointStates(Qt::TouchPointStates touchPointStates)
+\internal
+Sets a bitwise OR of all the touch point states for this event.
+*/
+/*! \fn void QTouchEvent::setTouchPoints(const QList<QTouchEvent::TouchPoint> &touchPoints)
+\internal
+Sets the list of touch points for this event.
+*/
+/*! \fn void QTouchEvent::setDeviceType(DeviceType deviceType)
+\internal
+Sets the device type to \a deviceType, which is of type \l {QTouchEvent::DeviceType}
+{DeviceType}.
+*/
+/*! \class QTouchEvent::TouchPoint
+\brief The TouchPoint class provides information about a touch point in a QTouchEvent.
+\since 4.6
+*/
+/*! \internal
+Constructs a QTouchEvent::TouchPoint for use in a QTouchEvent.
+*/
+QTouchEvent::TouchPoint::TouchPoint(int id)
+: d(new QTouchEventTouchPointPrivate(id))
+{ }
+/*! \internal
+Constructs a copy of \a other.
+*/
+QTouchEvent::TouchPoint::TouchPoint(const QTouchEvent::TouchPoint &other)
+: d(other.d)
+{
+d->ref.ref();
+}
+/*! \internal
+Destroys the QTouchEvent::TouchPoint.
+*/
+QTouchEvent::TouchPoint::~TouchPoint()
+{
+if (!d->ref.deref())
+delete d;
+}
+/*!
+Returns the id number of this touch point.
+Id numbers are globally sequential, starting at zero, meaning the
+first touch point in the application has id 0, the second has id 1,
+and so on.
+*/
+int QTouchEvent::TouchPoint::id() const
+{
+return d->id;
+}
+/*!
+Returns the current state of this touch point.
+*/
+Qt::TouchPointState QTouchEvent::TouchPoint::state() const
+{
+return Qt::TouchPointState(int(d->state) & Qt::TouchPointStateMask);
+}
+/*!
+Returns true if this touch point is the primary touch point. The primary touch point is the
+point for which the windowing system generates mouse events.
+*/
+bool QTouchEvent::TouchPoint::isPrimary() const
+{
+return (d->state & Qt::TouchPointPrimary) != 0;
+}
+/*!
+Returns the position of this touch point, relative to the widget
+or QGraphicsItem that received the event.
+\sa startPos(), lastPos(), screenPos(), scenePos(), normalizedPos()
+*/
+QPointF QTouchEvent::TouchPoint::pos() const
+{
+return d->rect.center();
+}
+/*!
+Returns the scene position of this touch point.
+The scene position is the position in QGraphicsScene coordinates
+if the QTouchEvent is handled by a QGraphicsItem::touchEvent()
+reimplementation, and identical to the screen position for
+widgets.
+\sa startScenePos(), lastScenePos(), pos()
+*/
+QPointF QTouchEvent::TouchPoint::scenePos() const
+{
+return d->sceneRect.center();
+}
+/*!
+Returns the screen position of this touch point.
+\sa startScreenPos(), lastScreenPos(), pos()
+*/
+QPointF QTouchEvent::TouchPoint::screenPos() const
+{
+return d->screenRect.center();
+}
+/*!
+Returns the normalized position of this touch point.
+The coordinates are normalized to the size of the touch device,
+i.e. (0,0) is the top-left corner and (1,1) is the bottom-right corner.
+\sa startNormalizedPos(), lastNormalizedPos(), pos()
+*/
+QPointF QTouchEvent::TouchPoint::normalizedPos() const
+{
+return d->normalizedPos;
+}
+/*!
+Returns the starting position of this touch point, relative to the
+widget or QGraphicsItem that received the event.
+\sa pos(), lastPos()
+*/
+QPointF QTouchEvent::TouchPoint::startPos() const
+{
+return d->startPos;
+}
+/*!
+Returns the starting scene position of this touch point.
+The scene position is the position in QGraphicsScene coordinates
+if the QTouchEvent is handled by a QGraphicsItem::touchEvent()
+reimplementation, and identical to the screen position for
+widgets.
+\sa scenePos(), lastScenePos()
+*/
+QPointF QTouchEvent::TouchPoint::startScenePos() const
+{
+return d->startScenePos;
+}
+/*!
+Returns the starting screen position of this touch point.
+\sa screenPos(), lastScreenPos()
+*/
+QPointF QTouchEvent::TouchPoint::startScreenPos() const
+{
+return d->startScreenPos;
+}
+/*!
+Returns the normalized starting position of this touch point.
+The coordinates are normalized to the size of the touch device,
+i.e. (0,0) is the top-left corner and (1,1) is the bottom-right corner.
+\sa normalizedPos(), lastNormalizedPos()
+*/
+QPointF QTouchEvent::TouchPoint::startNormalizedPos() const
+{
+return d->startNormalizedPos;
+}
+/*!
+Returns the position of this touch point from the previous touch
+event, relative to the widget or QGraphicsItem that received the event.
+\sa pos(), startPos()
+*/
+QPointF QTouchEvent::TouchPoint::lastPos() const
+{
+return d->lastPos;
+}
+/*!
+Returns the scene position of this touch point from the previous
+touch event.
+The scene position is the position in QGraphicsScene coordinates
+if the QTouchEvent is handled by a QGraphicsItem::touchEvent()
+reimplementation, and identical to the screen position for
+widgets.
+\sa scenePos(), startScenePos()
+*/
+QPointF QTouchEvent::TouchPoint::lastScenePos() const
+{
+return d->lastScenePos;
+}
+/*!
+Returns the screen position of this touch point from the previous
+touch event.
+\sa screenPos(), startScreenPos()
+*/
+QPointF QTouchEvent::TouchPoint::lastScreenPos() const
+{
+return d->lastScreenPos;
+}
+/*!
+Returns the normalized position of this touch point from the
+previous touch event.
+The coordinates are normalized to the size of the touch device,
+i.e. (0,0) is the top-left corner and (1,1) is the bottom-right corner.
+\sa normalizedPos(), startNormalizedPos()
+*/
+QPointF QTouchEvent::TouchPoint::lastNormalizedPos() const
+{
+return d->lastNormalizedPos;
+}
+/*!
+Returns the rect for this touch point, relative to the widget
+or QGraphicsItem that received the event. The rect is centered
+around the point returned by pos().
+\note This function returns an empty rect if the device does not report touch point sizes.
+*/
+QRectF QTouchEvent::TouchPoint::rect() const
+{
+return d->rect;
+}
+/*!
+Returns the rect for this touch point in scene coordinates.
+\note This function returns an empty rect if the device does not report touch point sizes.
+\sa scenePos(), rect()
+*/
+QRectF QTouchEvent::TouchPoint::sceneRect() const
+{
+return d->sceneRect;
+}
+/*!
+Returns the rect for this touch point in screen coordinates.
+\note This function returns an empty rect if the device does not report touch point sizes.
+\sa screenPos(), rect()
+*/
+QRectF QTouchEvent::TouchPoint::screenRect() const
+{
+return d->screenRect;
+}
+/*!
+Returns the pressure of this touch point. The return value is in
+the range 0.0 to 1.0.
+*/
+qreal QTouchEvent::TouchPoint::pressure() const
+{
+return d->pressure;
+}
+/*! \internal */
+void QTouchEvent::TouchPoint::setId(int id)
+{
+if (d->ref != 1)
+d = d->detach();
+d->id = id;
+}
+/*! \internal */
+void QTouchEvent::TouchPoint::setState(Qt::TouchPointStates state)
+{
+if (d->ref != 1)
+d = d->detach();
+d->state = state;
+}
+/*! \internal */
+void QTouchEvent::TouchPoint::setPos(const QPointF &pos)
+{
+if (d->ref != 1)
+d = d->detach();
+d->rect.moveCenter(pos);
+}
+/*! \internal */
+void QTouchEvent::TouchPoint::setScenePos(const QPointF &scenePos)
+{
+if (d->ref != 1)
+d = d->detach();
+d->sceneRect.moveCenter(scenePos);
+}
+/*! \internal */
+void QTouchEvent::TouchPoint::setScreenPos(const QPointF &screenPos)
+{
+if (d->ref != 1)
+d = d->detach();
+d->screenRect.moveCenter(screenPos);
+}
+/*! \internal */
+void QTouchEvent::TouchPoint::setNormalizedPos(const QPointF &normalizedPos)
+{
+if (d->ref != 1)
+d = d->detach();
+d->normalizedPos = normalizedPos;
+}
+/*! \internal */
+void QTouchEvent::TouchPoint::setStartPos(const QPointF &startPos)
+{
+if (d->ref != 1)
+d = d->detach();
+d->startPos = startPos;
+}
+/*! \internal */
+void QTouchEvent::TouchPoint::setStartScenePos(const QPointF &startScenePos)
+{
+if (d->ref != 1)
+d = d->detach();
+d->startScenePos = startScenePos;
+}
+/*! \internal */
+void QTouchEvent::TouchPoint::setStartScreenPos(const QPointF &startScreenPos)
+{
+if (d->ref != 1)
+d = d->detach();
+d->startScreenPos = startScreenPos;
+}
+/*! \internal */
+void QTouchEvent::TouchPoint::setStartNormalizedPos(const QPointF &startNormalizedPos)
+{
+if (d->ref != 1)
+d = d->detach();
+d->startNormalizedPos = startNormalizedPos;
+}
+/*! \internal */
+void QTouchEvent::TouchPoint::setLastPos(const QPointF &lastPos)
+{
+if (d->ref != 1)
+d = d->detach();
+d->lastPos = lastPos;
+}
+/*! \internal */
+void QTouchEvent::TouchPoint::setLastScenePos(const QPointF &lastScenePos)
+{
+if (d->ref != 1)
+d = d->detach();
+d->lastScenePos = lastScenePos;
+}
+/*! \internal */
+void QTouchEvent::TouchPoint::setLastScreenPos(const QPointF &lastScreenPos)
+{
+if (d->ref != 1)
+d = d->detach();
+d->lastScreenPos = lastScreenPos;
+}
+/*! \internal */
+void QTouchEvent::TouchPoint::setLastNormalizedPos(const QPointF &lastNormalizedPos)
+{
+if (d->ref != 1)
+d = d->detach();
+d->lastNormalizedPos = lastNormalizedPos;
+}
+/*! \internal */
+void QTouchEvent::TouchPoint::setRect(const QRectF &rect)
+{
+if (d->ref != 1)
+d = d->detach();
+d->rect = rect;
+}
+/*! \internal */
+void QTouchEvent::TouchPoint::setSceneRect(const QRectF &sceneRect)
+{
+if (d->ref != 1)
+d = d->detach();
+d->sceneRect = sceneRect;
+}
+/*! \internal */
+void QTouchEvent::TouchPoint::setScreenRect(const QRectF &screenRect)
+{
+if (d->ref != 1)
+d = d->detach();
+d->screenRect = screenRect;
+}
+/*! \internal */
+void QTouchEvent::TouchPoint::setPressure(qreal pressure)
+{
+if (d->ref != 1)
+d = d->detach();
+d->pressure = pressure;
+}
+/*! \internal */
+QTouchEvent::TouchPoint &QTouchEvent::TouchPoint::operator=(const QTouchEvent::TouchPoint &other)
+{
+other.d->ref.ref();
+if (!d->ref.deref())
+delete d;
+d = other.d;
+return *this;
+}
+/*!
+\class QGestureEvent
+\since 4.6
+\ingroup events
+\ingroup gestures
+\brief The QGestureEvent class provides the description of triggered gestures.
+The QGestureEvent class contains a list of gestures, which can be obtained using the
+allGestures() function.
+The gestures are either active or canceled. A list of those that are currently being
+executed can be obtained using the activeGestures() function. A list of those which
+were previously active and have been canceled can be accessed using the
+canceledGestures() function. A gesture might be canceled if the current window loses
+focus, for example, or because of a timeout, or for other reasons.
+If the event handler does not accept the event by calling the generic
+QEvent::accept() function, all individual QGesture object that were not accepted
+will be propagated up the parent widget chain until a widget accepts them
+individually, by calling QGestureEvent::accept() for each of them, or an event
+filter consumes the event.
+\sa QGesture, QGestureRecognizer,
+QWidget::grabGesture(), QGraphicsObject::grabGesture()
+*/
+/*!
+Creates new QGestureEvent containing a list of \a gestures.
+*/
+QGestureEvent::QGestureEvent(const QList<QGesture *> &gestures)
+: QEvent(QEvent::Gesture)
+{
+d = reinterpret_cast<QEventPrivate *>(new QGestureEventPrivate(gestures));
+}
+/*!
+Destroys QGestureEvent.
+*/
+QGestureEvent::~QGestureEvent()
+{
+delete reinterpret_cast<QGestureEventPrivate *>(d);
+}
+/*!
+Returns all gestures that are delivered in the event.
+*/
+QList<QGesture *> QGestureEvent::allGestures() const
+{
+return d_func()->gestures;
+}
+/*!
+Returns a gesture object by \a type.
+*/
+QGesture *QGestureEvent::gesture(Qt::GestureType type) const
+{
+const QGestureEventPrivate *d = d_func();
+for(int i = 0; i < d->gestures.size(); ++i)
+if (d->gestures.at(i)->gestureType() == type)
+return d->gestures.at(i);
+return 0;
+}
+/*!
+Returns a list of active (not canceled) gestures.
+*/
+QList<QGesture *> QGestureEvent::activeGestures() const
+{
+return d_func()->gestures;
+}
+/*!
+Returns a list of canceled gestures.
+*/
+QList<QGesture *> QGestureEvent::canceledGestures() const
+{
+return d_func()->gestures;
+}
+/*!
+Sets the accept flag of the given \a gesture object to the specified \a value.
+Setting the accept flag indicates that the event receiver wants the \a gesture.
+Unwanted gestures may be propagated to the parent widget.
+By default, gestures in events of type QEvent::Gesture are accepted, and
+gestures in QEvent::GestureOverride events are ignored.
+For convenience, the accept flag can also be set with
+\l{QGestureEvent::accept()}{accept(gesture)}, and cleared with
+\l{QGestureEvent::ignore()}{ignore(gesture)}.
+*/
+void QGestureEvent::setAccepted(QGesture *gesture, bool value)
+{
+setAccepted(false);
+if (gesture)
+d_func()->accepted[gesture->gestureType()] = value;
+}
+/*!
+Sets the accept flag of the given \a gesture object, the equivalent of calling
+\l{QGestureEvent::setAccepted()}{setAccepted(gesture, true)}.
+Setting the accept flag indicates that the event receiver wants the
+gesture. Unwanted gestures may be propagated to the parent widget.
+\sa QGestureEvent::ignore()
+*/
+void QGestureEvent::accept(QGesture *gesture)
+{
+setAccepted(gesture, true);
+}
+/*!
+Clears the accept flag parameter of the given \a gesture object, the equivalent
+of calling \l{QGestureEvent::setAccepted()}{setAccepted(gesture, false)}.
+Clearing the accept flag indicates that the event receiver does not
+want the gesture. Unwanted gestures may be propgated to the parent widget.
+\sa QGestureEvent::accept()
+*/
+void QGestureEvent::ignore(QGesture *gesture)
+{
+setAccepted(gesture, false);
+}
+/*!
+Returns true if the \a gesture is accepted; otherwise returns false.
+*/
+bool QGestureEvent::isAccepted(QGesture *gesture) const
+{
+return gesture ? d_func()->accepted.value(gesture->gestureType(), true) : false;
+}
+/*!
+Sets the widget for this event.
+*/
+void QGestureEvent::setWidget(QWidget *widget)
+{
+d_func()->widget = widget;
+}
+/*!
+Returns the widget on which the event occurred.
+*/
+QWidget *QGestureEvent::widget() const
+{
+return d_func()->widget;
+}
+/*!
+Returns the scene-local coordinates if the \a gesturePoint is inside a graphics view.
+\sa QPointF::isNull().
+*/
+QPointF QGestureEvent::mapToScene(const QPointF &gesturePoint) const
+{
+QWidget *w = widget();
+if (w) // we get the viewport as widget, not the graphics view
+w = w->parentWidget();
+QGraphicsView *view = qobject_cast<QGraphicsView*>(w);
+if (view) {
+return view->mapToScene(view->mapFromGlobal(gesturePoint.toPoint()));
+}
+return QPointF();
+}
+/*!
+\internal
+*/
+QGestureEventPrivate *QGestureEvent::d_func()
+{
+return reinterpret_cast<QGestureEventPrivate *>(d);
+}
+/*!
+\internal
+*/
+const QGestureEventPrivate *QGestureEvent::d_func() const
+{
+return reinterpret_cast<const QGestureEventPrivate *>(d);
+}
+#ifdef Q_NO_USING_KEYWORD
+/*!
+\fn void QGestureEvent::setAccepted(bool accepted)
+Sets or clears the event's internal flag that determines whether it should
+be delivered to other objects.
+Calling this function with a value of true for \a accepted indicates that the
+caller has accepted the event and that it should not be propagated further.
+Calling this function with a value of false indicates that the caller has
+ignored the event and that it should be delivered to other objects.
+For convenience, the accept flag can also be set with accept(), and cleared
+with ignore().
+\sa QEvent::accepted
+*/
+/*!
+\fn bool QGestureEvent::isAccepted() const
+Returns true is the event has been accepted; otherwise returns false.
+\sa QEvent::accepted
+*/
+/*!
+\fn void QGestureEvent::accept()
+Accepts the event, the equivalent of calling setAccepted(true).
+\sa QEvent::accept()
+*/
+/*!
+\fn void QGestureEvent::ignore()
+Ignores the event, the equivalent of calling setAccepted(false).
+\sa QEvent::ignore()
+*/
+#endif
+QT_END_NAMESPACE

changeset 0	1918ee327afb
child 3	41300fa6a67c