qevent.h

qt-x11-opensource-src-4.1.4.tar.gz源码

/****************************************************************************
**
** Copyright (C) 1992-2006 Trolltech ASA. All rights reserved.
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** This file may be used under the terms of the GNU General Public
** License version 2.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of
** this file.  Please review the following information to ensure GNU
** General Public Licensing requirements will be met:
** http://www.trolltech.com/products/qt/opensource.html
**
** If you are unsure which license is appropriate for your use, please
** review the following information:
** http://www.trolltech.com/products/qt/licensing.html or contact the
** sales department at [e-mail].
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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****************************************************************************/

#ifndef QEVENT_H
#define QEVENT_H

#include <QtGui/qwindowdefs.h>
#include <QtCore/qobject.h>
#include <QtGui/qregion.h>
#include <QtCore/qnamespace.h>
#include <QtCore/qstring.h>
#include <QtGui/qkeysequence.h>
#include <QtCore/qcoreevent.h>
#include <QtGui/qmime.h>
#include <QtGui/qdrag.h>
#include <QtCore/qvariant.h>

QT_BEGIN_HEADER

QT_MODULE(Gui)

class QAction;

class Q_GUI_EXPORT QInputEvent : public QEvent
{
public:
    QInputEvent(Type type, Qt::KeyboardModifiers modifiers = Qt::NoModifier);
    ~QInputEvent();
    inline Qt::KeyboardModifiers modifiers() const { return modState; }
protected:
    Qt::KeyboardModifiers modState;
};


class Q_GUI_EXPORT QMouseEvent : public QInputEvent
{
public:
    QMouseEvent(Type type, const QPoint &pos, Qt::MouseButton button,
                Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers);
    QMouseEvent(Type type, const QPoint &pos, const QPoint &globalPos,
                Qt::MouseButton button, Qt::MouseButtons buttons,
                Qt::KeyboardModifiers modifiers);
    ~QMouseEvent();

    inline const QPoint &pos() const { return p; }
    inline const QPoint &globalPos() const { return g; }
    inline int x() const { return p.x(); }
    inline int y() const { return p.y(); }
    inline int globalX() const { return g.x(); }
    inline int globalY() const { return g.y(); }
    inline Qt::MouseButton button() const { return b; }
    inline Qt::MouseButtons buttons() const { return mouseState; }

#ifdef QT3_SUPPORT
    QT3_SUPPORT_CONSTRUCTOR QMouseEvent(Type type, const QPoint &pos, Qt::ButtonState button, int state);
    QT3_SUPPORT_CONSTRUCTOR QMouseEvent(Type type, const QPoint &pos, const QPoint &globalPos,
                                      Qt::ButtonState button, int state);
    inline QT3_SUPPORT Qt::ButtonState state() const
    { return Qt::ButtonState((mouseState^b)|int(modifiers())); }
    inline QT3_SUPPORT Qt::ButtonState stateAfter() const
    { return Qt::ButtonState(int(mouseState)|int(modifiers())); }
#endif
protected:
    QPoint p, g;
    Qt::MouseButton b;
    Qt::MouseButtons mouseState;
};

class Q_GUI_EXPORT QHoverEvent : public QEvent
{
public:
    QHoverEvent(Type type, const QPoint &pos, const QPoint &oldPos);
    ~QHoverEvent();

    inline const QPoint &pos() const { return p; }
    inline const QPoint &oldPos() const { return op; }

protected:
    QPoint p, op;
};

#ifndef QT_NO_WHEELEVENT
class Q_GUI_EXPORT QWheelEvent : public QInputEvent
{
public:
    QWheelEvent(const QPoint &pos, int delta,
                Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers,
                Qt::Orientation orient = Qt::Vertical);
    QWheelEvent(const QPoint &pos, const QPoint& globalPos, int delta,
                Qt::MouseButtons buttons, Qt::KeyboardModifiers modifiers,
                Qt::Orientation orient = Qt::Vertical);
    ~QWheelEvent();

    inline int delta() const { return d; }
    inline const QPoint &pos() const { return p; }
    inline const QPoint &globalPos()   const { return g; }
    inline int x() const { return p.x(); }
    inline int y() const { return p.y(); }
    inline int globalX() const { return g.x(); }
    inline int globalY() const { return g.y(); }

    inline Qt::MouseButtons buttons() const { return mouseState; }
    Qt::Orientation orientation() const { return o; }

#ifdef QT3_SUPPORT
    QT3_SUPPORT_CONSTRUCTOR QWheelEvent(const QPoint &pos, int delta, int state,
                                      Qt::Orientation orient = Qt::Vertical);
    QT3_SUPPORT_CONSTRUCTOR QWheelEvent(const QPoint &pos, const QPoint& globalPos, int delta, int state,
                                      Qt::Orientation orient = Qt::Vertical);
    inline QT3_SUPPORT Qt::ButtonState state() const
    { return static_cast<Qt::ButtonState>(int(buttons())|int(modifiers())); }
#endif
protected:
    QPoint p;
    QPoint g;
    int d;
    Qt::MouseButtons mouseState;
    Qt::Orientation o;
};
#endif

class Q_GUI_EXPORT QTabletEvent : public QInputEvent
{
public:
    enum TabletDevice { NoDevice, Puck, Stylus, Airbrush, FourDMouse,
                        XFreeEraser /*internal*/, RotationStylus };
    enum PointerType { UnknownPointer, Pen, Cursor, Eraser };
    QTabletEvent(Type t, 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);
    ~QTabletEvent();

    inline const QPoint &pos() const { return mPos; }
    inline const QPoint &globalPos() const { return mGPos; }
    inline const QPointF &hiResGlobalPos() const { return mHiResGlobalPos; }
    inline int x() const { return mPos.x(); }
    inline int y() const { return mPos.y(); }
    inline int globalX() const { return mGPos.x(); }
    inline int globalY() const { return mGPos.y(); }
    inline qreal hiResGlobalX() const { return mHiResGlobalPos.x(); }
    inline qreal hiResGlobalY() const { return mHiResGlobalPos.y(); }
    inline TabletDevice device() const { return TabletDevice(mDev); }
    inline PointerType pointerType() const { return PointerType(mPointerType); }
    inline qint64 uniqueId() const { return mUnique; }
    inline qreal pressure() const { return mPress; }
    inline int z() const { return mZ; }
    inline qreal tangentialPressure() const { return mTangential; }
    inline qreal rotation() const { return mRot; }
    inline int xTilt() const { return mXT; }
    inline int yTilt() const { return mYT; }

protected:
    QPoint mPos, mGPos;
    QPointF mHiResGlobalPos;
    int mDev, mPointerType, mXT, mYT, mZ;
    qreal mPress, mTangential, mRot;
    qint64 mUnique;

    // I don't know what the future holds for tablets but there could be some
    // new devices coming along, and there seem to be "holes" in the
    // OS-specific events for this.
    void *mExtra;

};


class Q_GUI_EXPORT QKeyEvent : public QInputEvent
{
public:
    QKeyEvent(Type type, int key, Qt::KeyboardModifiers modifiers,
              const QString& text = QString(),
              bool autorep = false, ushort count = 1);
    ~QKeyEvent();

    int key() const { return k; }
    Qt::KeyboardModifiers modifiers() const;
    inline QString text() const { return txt; }
    inline bool isAutoRepeat() const { return autor; }
    inline int count() const { return int(c); }

#ifdef QT3_SUPPORT
    inline QT3_SUPPORT_CONSTRUCTOR QKeyEvent(Type type, int key, int /*ascii*/,
                                           int modifiers, const QString& text = QString(),
                                           bool autorep = false, ushort count = 1)
        : QInputEvent(type, (Qt::KeyboardModifiers)(modifiers & (int)Qt::KeyButtonMask)), txt(text), k(key),
          c(count), autor(autorep)
    {
        if (key >= Qt::Key_Back && key <= Qt::Key_MediaLast)
            ignore();
    }
    inline QT3_SUPPORT int ascii() const
    { return (txt.length() ? txt.unicode()->toLatin1() : 0); }
    inline QT3_SUPPORT Qt::ButtonState state() const { return Qt::ButtonState(QInputEvent::modifiers()); }
    inline QT3_SUPPORT Qt::ButtonState stateAfter() const { return Qt::ButtonState(modifiers()); }
#endif

protected:
    QString txt;
    int k;
    ushort c;
    uint autor:1;
};


class Q_GUI_EXPORT QFocusEvent : public QEvent
{
public:
    QFocusEvent(Type type, Qt::FocusReason reason=Qt::OtherFocusReason);
    ~QFocusEvent();

    inline bool gotFocus() const { return type() == FocusIn; }
    inline bool lostFocus() const { return type() == FocusOut; }

#ifdef QT3_SUPPORT
    enum Reason { Mouse=Qt::MouseFocusReason, Tab=Qt::TabFocusReason,
                  Backtab=Qt::BacktabFocusReason, MenuBar=Qt::MenuBarFocusReason,
                  ActiveWindow=Qt::ActiveWindowFocusReason, Other=Qt::OtherFocusReason,
                  Popup=Qt::PopupFocusReason, Shortcut=Qt::ShortcutFocusReason };
#endif
    Qt::FocusReason reason();

private:
    Qt::FocusReason m_reason;
};


class Q_GUI_EXPORT QPaintEvent : public QEvent
{
public:
    QPaintEvent(const QRegion& paintRegion);
    QPaintEvent(const QRect &paintRect);
    ~QPaintEvent();

    inline const QRect &rect() const { return m_rect; }
    inline const QRegion &region() const { return m_region; }

#ifdef QT3_SUPPORT
    QT_COMPAT_CONSTRUCTOR QPaintEvent(const QRegion &paintRegion, const QRect &paintRect);
    inline QT3_SUPPORT bool erased() const { return m_erased; }
    inline QT3_SUPPORT void setErased(bool b) { m_erased = b; }
#endif

protected:
    friend class QApplication;
    friend class QCoreApplication;
    QRect m_rect;
    QRegion m_region;
    bool m_erased;
};

class QUpdateLaterEvent : public QEvent
{
public:
    QUpdateLaterEvent(const QRegion& paintRegion);
    ~QUpdateLaterEvent();

    inline const QRegion &region() const { return m_region; }

protected:
    QRegion m_region;
};

class Q_GUI_EXPORT QMoveEvent : public QEvent
{
public:
    QMoveEvent(const QPoint &pos, const QPoint &oldPos);
    ~QMoveEvent();

    inline const QPoint &pos() const { return p; }
    inline const QPoint &oldPos() const { return oldp;}
protected:
    QPoint p, oldp;
    friend class QApplication;
    friend class QCoreApplication;
};


class Q_GUI_EXPORT QResizeEvent : public QEvent
{
public:
    QResizeEvent(const QSize &size, const QSize &oldSize);
    ~QResizeEvent();

    inline const QSize &size() const { return s; }
    inline const QSize &oldSize()const { return olds;}
protected:
    QSize s, olds;
    friend class QApplication;
    friend class QCoreApplication;
};


class Q_GUI_EXPORT QCloseEvent : public QEvent
{
public:
    QCloseEvent();
    ~QCloseEvent();
};


class Q_GUI_EXPORT QIconDragEvent : public QEvent
{
public:
    QIconDragEvent();
    ~QIconDragEvent();
};


class Q_GUI_EXPORT QShowEvent : public QEvent
{
public: