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/****************************************************************************
** $Id: qt/qevent.h 3.0.5 edited Oct 12 2001 $
**
** Definition of event classes
**
** Created : 931029
**
** Copyright (C) 1992-2000 Trolltech AS. All rights reserved.
**
** This file is part of the kernel module of the Qt GUI Toolkit.
**
** This file may be distributed under the terms of the Q Public License
** as defined by Trolltech AS of Norway and appearing in the file
** LICENSE.QPL included in the packaging of this file.
**
** This file may be distributed and/or modified under the terms of the
** GNU General Public License version 2 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.
**
** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition
** licenses may use this file in accordance with the Qt Commercial License
** Agreement provided with the Software.
**
** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
**
** See http://www.trolltech.com/pricing.html or email sales@trolltech.com for
** information about Qt Commercial License Agreements.
** See http://www.trolltech.com/qpl/ for QPL licensing information.
** See http://www.trolltech.com/gpl/ for GPL licensing information.
**
** Contact info@trolltech.com if any conditions of this licensing are
** not clear to you.
**
**********************************************************************/
#ifndef QEVENT_H
#define QEVENT_H
#ifndef QT_H
#include "qwindowdefs.h"
#include "qregion.h"
#include "qnamespace.h"
#include "qmime.h"
#include "qpair.h"
#endif // QT_H
class Q_EXPORT QEvent: public Qt // event base class
{
public:
enum Type {
// NOTE: if you get a strange compiler error on the line with "None",
// it's probably because you're trying to include X11, which
// has a mess of #defines in it. Put the messy X11 includes
// *AFTER* the nice clean Qt includes.
None = 0, // invalid event
Timer = 1, // timer event
MouseButtonPress = 2, // mouse button pressed
MouseButtonRelease = 3, // mouse button released
MouseButtonDblClick= 4, // mouse button double click
MouseMove = 5, // mouse move
KeyPress = 6, // key pressed
KeyRelease = 7, // key released
FocusIn = 8, // keyboard focus received
FocusOut = 9, // keyboard focus lost
Enter = 10, // mouse enters widget
Leave = 11, // mouse leaves widget
Paint = 12, // paint widget
Move = 13, // move widget
Resize = 14, // resize widget
Create = 15, // after object creation
Destroy = 16, // during object destruction
Show = 17, // widget is shown
Hide = 18, // widget is hidden
Close = 19, // request to close widget
Quit = 20, // request to quit application
Reparent = 21, // widget has been reparented
ShowMinimized = 22, // widget is shown minimized
ShowNormal = 23, // widget is shown normal
WindowActivate = 24, // window was activated
WindowDeactivate = 25, // window was deactivated
ShowToParent = 26, // widget is shown to parent
HideToParent = 27, // widget is hidden to parent
ShowMaximized = 28, // widget is shown maximized
ShowFullScreen = 29, // widget is shown full-screen
Accel = 30, // accelerator event
Wheel = 31, // wheel event
AccelAvailable = 32, // accelerator available event
CaptionChange = 33, // caption changed
IconChange = 34, // icon changed
ParentFontChange = 35, // parent font changed
ApplicationFontChange = 36, // application font changed
ParentPaletteChange = 37, // parent palette changed
ApplicationPaletteChange = 38, // application palette changed
PaletteChange = 39, // widget palette changed
Clipboard = 40, // internal clipboard event
Speech = 42, // reserved for speech input
SockAct = 50, // socket activation
AccelOverride = 51, // accelerator override event
DeferredDelete = 52, // deferred delete event
DragEnter = 60, // drag moves into widget
DragMove = 61, // drag moves in widget
DragLeave = 62, // drag leaves or is cancelled
Drop = 63, // actual drop
DragResponse = 64, // drag accepted/rejected
ChildInserted = 70, // new child widget
ChildRemoved = 71, // deleted child widget
LayoutHint = 72, // child min/max size changed
ShowWindowRequest = 73, // widget's window should be mapped
ActivateControl = 80, // ActiveX activation
DeactivateControl = 81, // ActiveX deactivation
ContextMenu = 82, // context popup menu
IMStart = 83, // input method composition start
IMCompose = 84, // input method composition
IMEnd = 85, // input method composition end
Accessibility = 86, // accessibility information is requested
Tablet = 87, // Wacom Tablet Event
User = 1000, // first user event id
MaxUser = 65535 // last user event id
};
QEvent( Type type ) : t(type), posted(FALSE), spont(FALSE) {}
virtual ~QEvent();
Type type() const { return t; }
bool spontaneous() const { return spont; }
protected:
Type t;
private:
uint posted : 1;
uint spont : 1;
friend class QApplication;
friend class QBaseApplication;
friend class QETWidget;
};
class Q_EXPORT QTimerEvent : public QEvent
{
public:
QTimerEvent( int timerId )
: QEvent(Timer), id(timerId) {}
int timerId() const { return id; }
protected:
int id;
};
class Q_EXPORT QMouseEvent : public QEvent
{
public:
QMouseEvent( Type type, const QPoint &pos, int button, int state );
QMouseEvent( Type type, const QPoint &pos, const QPoint&globalPos,
int button, int state )
: QEvent(type), p(pos), g(globalPos), b((ushort)button),s((ushort)state),accpt(TRUE) {};
const QPoint &pos() const { return p; }
const QPoint &globalPos() const { return g; }
int x() const { return p.x(); }
int y() const { return p.y(); }
int globalX() const { return g.x(); }
int globalY() const { return g.y(); }
ButtonState button() const { return (ButtonState) b; }
ButtonState state() const { return (ButtonState) s; }
ButtonState stateAfter() const;
bool isAccepted() const { return accpt; }
void accept() { accpt = TRUE; }
void ignore() { accpt = FALSE; }
protected:
QPoint p;
QPoint g;
ushort b;
ushort s;
uint accpt:1;
};
#ifndef QT_NO_WHEELEVENT
class Q_EXPORT QWheelEvent : public QEvent
{
public:
QWheelEvent( const QPoint &pos, int delta, int state, Orientation orient = Vertical );
QWheelEvent( const QPoint &pos, const QPoint& globalPos, int delta, int state, Orientation orient = Vertical )
: QEvent(Wheel), p(pos), g(globalPos), d(delta), s((ushort)state),
accpt(TRUE), o(orient) {}
int delta() const { return d; }
const QPoint &pos() const { return p; }
const QPoint &globalPos() const { return g; }
int x() const { return p.x(); }
int y() const { return p.y(); }
int globalX() const { return g.x(); }
int globalY() const { return g.y(); }
ButtonState state() const { return ButtonState(s); }
Orientation orientation() const { return o; }
bool isAccepted() const { return accpt; }
void accept() { accpt = TRUE; }
void ignore() { accpt = FALSE; }
protected:
QPoint p;
QPoint g;
int d;
ushort s;
bool accpt;
Orientation o;
};
#endif
class Q_EXPORT QTabletEvent : public QEvent
{
public:
enum TabletDevice { NoDevice = -1, Puck, Stylus, Eraser };
QTabletEvent( const QPoint &pos, int device, int pressure, int xTilt,
int yTilt, const QPair<int,int> &uId )
: QEvent( Tablet ), mPos( pos ), mDev( device ), mPress( pressure ),
mXT( xTilt ), mYT( yTilt ), mType( uId.first ), mPhy( uId.second )
{}
QTabletEvent( const QPoint &pos, const QPoint &globalPos, int device,
int pressure, int xTilt, int yTilt, const QPair<int,int> &uId )
: QEvent( Tablet ), mPos( pos ), mGPos( globalPos ), mDev( device ),
mPress( pressure ), mXT( xTilt ), mYT( yTilt ), mType( uId.first ),
mPhy( uId.second )
{}
int pressure() const { return mPress; }
int xTilt() const { return mXT; }
int yTilt() const { return mYT; }
const QPoint &pos() const { return mPos; }
const QPoint &globalPos() const { return mGPos; }
int x() const { return mPos.x(); }
int y() const { return mPos.y(); }
int globalX() const { return mGPos.x(); }
int globalY() const { return mGPos.y(); }
TabletDevice device() const { return TabletDevice(mDev); }
int isAccepted() const { return mbAcc; }
void accept() { mbAcc = TRUE; }
void ignore() { mbAcc = FALSE; }
QPair<int,int> uniqueId() { return QPair<int,int>( mType, mPhy); }
protected:
QPoint mPos;
QPoint mGPos;
int mDev,
mPress,
mXT,
mYT,
mType,
mPhy;
bool mbAcc;
};
class Q_EXPORT QKeyEvent : public QEvent
{
public:
QKeyEvent( Type type, int key, int ascii, int state,
const QString& text=QString::null, bool autorep=FALSE, ushort count=1 )
: QEvent(type), txt(text), k((ushort)key), s((ushort)state),
a((uchar)ascii), accpt(TRUE), autor(autorep), c(count) {}
int key() const { return k; }
int ascii() const { return a; }
ButtonState state() const { return ButtonState(s); }
ButtonState stateAfter() const;
bool isAccepted() const { return accpt; }
QString text() const { return txt; }
bool isAutoRepeat() const { return autor; }
int count() const { return int(c); }
void accept() { accpt = TRUE; }
void ignore() { accpt = FALSE; }
protected:
QString txt;
ushort k, s;
uchar a;
uint accpt:1;
uint autor:1;
ushort c;
};
class Q_EXPORT QFocusEvent : public QEvent
{
public:
QFocusEvent( Type type )
: QEvent(type) {}
bool gotFocus() const { return type() == FocusIn; }
bool lostFocus() const { return type() == FocusOut; }
enum Reason { Mouse, Tab, Backtab, ActiveWindow, Popup, Shortcut, Other };
static Reason reason();
static void setReason( Reason reason );
static void resetReason();
private:
static Reason m_reason;
static Reason prev_reason;
};
class Q_EXPORT QPaintEvent : public QEvent
{
public:
QPaintEvent( const QRegion& paintRegion, bool erased = TRUE)
: QEvent(Paint),
rec(paintRegion.boundingRect()),
reg(paintRegion),
erase(erased){}
QPaintEvent( const QRect &paintRect, bool erased = TRUE )
: QEvent(Paint),
rec(paintRect),
reg(paintRect),
erase(erased){}
const QRect &rect() const { return rec; }
const QRegion ®ion() const { return reg; }
bool erased() const { return erase; }
protected:
friend class QApplication;
friend class QBaseApplication;
QRect rec;
QRegion reg;
bool erase;
};
class Q_EXPORT QMoveEvent : public QEvent
{
public:
QMoveEvent( const QPoint &pos, const QPoint &oldPos )
: QEvent(Move), p(pos), oldp(oldPos) {}
const QPoint &pos() const { return p; }
const QPoint &oldPos()const { return oldp;}
protected:
QPoint p, oldp;
friend class QApplication;
friend class QBaseApplication;
};
class Q_EXPORT QResizeEvent : public QEvent
{
public:
QResizeEvent( const QSize &size, const QSize &oldSize )
: QEvent(Resize), s(size), olds(oldSize) {}
const QSize &size() const { return s; }
const QSize &oldSize()const { return olds;}
protected:
QSize s, olds;
friend class QApplication;
friend class QBaseApplication;
};
class Q_EXPORT QCloseEvent : public QEvent
{
public:
QCloseEvent()
: QEvent(Close), accpt(FALSE) {}
bool isAccepted() const { return accpt; }
void accept() { accpt = TRUE; }
void ignore() { accpt = FALSE; }
protected:
bool accpt;
};
class Q_EXPORT QShowEvent : public QEvent
{
public:
QShowEvent()
: QEvent(Show) {}
};
class Q_EXPORT QHideEvent : public QEvent
{
public:
QHideEvent()
: QEvent(Hide) {}
};
class Q_EXPORT QContextMenuEvent : public QEvent
{
public:
enum Reason { Mouse, Keyboard, Other };
QContextMenuEvent( Reason reason, const QPoint &pos, const QPoint &globalPos, int state )
: QEvent( ContextMenu ), p( pos ), gp( globalPos ), accpt( FALSE ), consum(FALSE),
reas( reason ), s((ushort)state) {}
QContextMenuEvent( Reason reason, const QPoint &pos, int state );
int x() const { return p.x(); }
int y() const { return p.y(); }
int globalX() const { return gp.x(); }
int globalY() const { return gp.y(); }
const QPoint& pos() const { return p; }
const QPoint& globalPos() const { return gp; }
ButtonState state() const { return (ButtonState) s; }
bool isAccepted() const { return accpt; }
bool isConsumed() const { return consum; }
void consume() { consum = TRUE; }
void accept() { accpt = TRUE; consum = TRUE; }
void ignore() { accpt = FALSE; consum = FALSE; }
Reason reason() const { return Reason( reas ); }
protected:
QPoint p;
QPoint gp;
bool accpt;
bool consum;
uint reas:8;
ushort s;
};
class Q_EXPORT QIMEvent : public QEvent
{
public:
QIMEvent( Type type, const QString &text, int cursorPosition )
: QEvent(type), txt(text), cpos(cursorPosition), a(FALSE) {}
const QString &text() const { return txt; }
int cursorPos() const { return cpos; }
bool isAccepted() const { return a; }
void accept() { a = TRUE; }
void ignore() { a = FALSE; }
private:
QString txt;
int cpos;
bool a;
};
#ifndef QT_NO_DRAGANDDROP
// This class is rather closed at the moment. If you need to create your
// own DND event objects, write to qt-bugs@trolltech.com and we'll try to
// find a way to extend it so it covers your needs.
class Q_EXPORT QDropEvent : public QEvent, public QMimeSource
{
public:
QDropEvent( const QPoint& pos, Type typ=Drop )
: QEvent(typ), p(pos),
act(0), accpt(0), accptact(0), resv(0),
d(0)
{}
const QPoint &pos() const { return p; }
bool isAccepted() const { return accpt || accptact; }
void accept(bool y=TRUE) { accpt = y; }
void ignore() { accpt = FALSE; }
bool isActionAccepted() const { return accptact; }
void acceptAction(bool y=TRUE) { accptact = y; }
enum Action { Copy, Link, Move, Private, UserAction=100 };
void setAction( Action a ) { act = (uint)a; }
Action action() const { return Action(act); }
QWidget* source() const;
const char* format( int n = 0 ) const;
QByteArray encodedData( const char* ) const;
bool provides( const char* ) const;
QByteArray data(const char* f) const { return encodedData(f); }
void setPoint( const QPoint& np ) { p = np; }
protected:
QPoint p;
uint act:8;
uint accpt:1;
uint accptact:1;
uint resv:5;
void * d;
};
class Q_EXPORT QDragMoveEvent : public QDropEvent
{
public:
QDragMoveEvent( const QPoint& pos, Type typ=DragMove )
: QDropEvent(pos,typ),
rect( pos, QSize( 1, 1 ) ) {}
QRect answerRect() const { return rect; }
void accept( bool y=TRUE ) { QDropEvent::accept(y); }
void accept( const QRect & r) { accpt = TRUE; rect = r; }
void ignore( const QRect & r) { accpt =FALSE; rect = r; }
void ignore() { QDropEvent::ignore(); }
protected:
QRect rect;
};
class Q_EXPORT QDragEnterEvent : public QDragMoveEvent
{
public:
QDragEnterEvent( const QPoint& pos ) :
QDragMoveEvent(pos, DragEnter) { }
};
/* An internal class */
class Q_EXPORT QDragResponseEvent : public QEvent
{
public:
QDragResponseEvent( bool accepted )
: QEvent(DragResponse), a(accepted) {}
bool dragAccepted() const { return a; }
protected:
bool a;
};
class Q_EXPORT QDragLeaveEvent : public QEvent
{
public:
QDragLeaveEvent()
: QEvent(DragLeave) {}
};
#endif // QT_NO_DRAGANDDROP
class Q_EXPORT QChildEvent : public QEvent
{
public:
QChildEvent( Type type, QObject *child )
: QEvent(type), c(child) {}
QObject *child() const { return c; }
bool inserted() const { return t == ChildInserted; }
bool removed() const { return t == ChildRemoved; }
protected:
QObject *c;
};
class Q_EXPORT QCustomEvent : public QEvent
{
public:
QCustomEvent( int type );
QCustomEvent( Type type, void *data )
: QEvent(type), d(data) {};
void *data() const { return d; }
void setData( void* data ) { d = data; }
private:
void *d;
};
#endif // QEVENT_H
| Copyright © 2002 Trolltech | Trademarks | 译者:Cavendish | Qt 3.0.5版
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