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QTabletEvent Class Reference

Inheritance diagram for QTabletEvent:

QInputEvent QEvent

List of all members.


Detailed Description

The QTabletEvent class contains parameters that describe a Tablet event.

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 {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.

Definition at line 142 of file qevent.h.


Public Types

enum  PointerType { UnknownPointer, Pen, Cursor, Eraser }
enum  TabletDevice {
  NoDevice, Puck, Stylus, Airbrush,
  FourDMouse, XFreeEraser, RotationStylus
}
enum  Type {
  None = 0, Timer = 1, MouseButtonPress = 2, MouseButtonRelease = 3,
  MouseButtonDblClick = 4, MouseMove = 5, KeyPress = 6, KeyRelease = 7,
  FocusIn = 8, FocusOut = 9, Enter = 10, Leave = 11,
  Paint = 12, Move = 13, Resize = 14, Create = 15,
  Destroy = 16, Show = 17, Hide = 18, Close = 19,
  Quit = 20, ParentChange = 21, ParentAboutToChange = 131, ThreadChange = 22,
  WindowActivate = 24, WindowDeactivate = 25, ShowToParent = 26, HideToParent = 27,
  Wheel = 31, WindowTitleChange = 33, WindowIconChange = 34, ApplicationWindowIconChange = 35,
  ApplicationFontChange = 36, ApplicationLayoutDirectionChange = 37, ApplicationPaletteChange = 38, PaletteChange = 39,
  Clipboard = 40, Speech = 42, MetaCall = 43, SockAct = 50,
  WinEventAct = 132, DeferredDelete = 52, DragEnter = 60, DragMove = 61,
  DragLeave = 62, Drop = 63, DragResponse = 64, ChildAdded = 68,
  ChildPolished = 69, ChildRemoved = 71, ShowWindowRequest = 73, PolishRequest = 74,
  Polish = 75, LayoutRequest = 76, UpdateRequest = 77, UpdateLater = 78,
  EmbeddingControl = 79, ActivateControl = 80, DeactivateControl = 81, ContextMenu = 82,
  InputMethod = 83, AccessibilityPrepare = 86, TabletMove = 87, LocaleChange = 88,
  LanguageChange = 89, LayoutDirectionChange = 90, Style = 91, TabletPress = 92,
  TabletRelease = 93, OkRequest = 94, HelpRequest = 95, IconDrag = 96,
  FontChange = 97, EnabledChange = 98, ActivationChange = 99, StyleChange = 100,
  IconTextChange = 101, ModifiedChange = 102, MouseTrackingChange = 109, WindowBlocked = 103,
  WindowUnblocked = 104, WindowStateChange = 105, ToolTip = 110, WhatsThis = 111,
  StatusTip = 112, ActionChanged = 113, ActionAdded = 114, ActionRemoved = 115,
  FileOpen = 116, Shortcut = 117, ShortcutOverride = 51, WhatsThisClicked = 118,
  ToolBarChange = 120, ApplicationActivated = 121, ApplicationDeactivated = 122, QueryWhatsThis = 123,
  EnterWhatsThisMode = 124, LeaveWhatsThisMode = 125, ZOrderChange = 126, HoverEnter = 127,
  HoverLeave = 128, HoverMove = 129, AccessibilityHelp = 119, AccessibilityDescription = 130,
  AcceptDropsChange = 152, MenubarUpdated = 153, ZeroTimerEvent = 154, GraphicsSceneMouseMove = 155,
  GraphicsSceneMousePress = 156, GraphicsSceneMouseRelease = 157, GraphicsSceneMouseDoubleClick = 158, GraphicsSceneContextMenu = 159,
  GraphicsSceneHoverEnter = 160, GraphicsSceneHoverMove = 161, GraphicsSceneHoverLeave = 162, GraphicsSceneHelp = 163,
  GraphicsSceneDragEnter = 164, GraphicsSceneDragMove = 165, GraphicsSceneDragLeave = 166, GraphicsSceneDrop = 167,
  GraphicsSceneWheel = 168, KeyboardLayoutChange = 169, DynamicPropertyChange = 170, TabletEnterProximity = 171,
  TabletLeaveProximity = 172, User = 1000, MaxUser = 65535
}

Public Member Functions

void accept ()
TabletDevice device () const
const QPointglobalPos () const
int globalX () const
int globalY () const
const QPointFhiResGlobalPos () const
qreal hiResGlobalX () const
qreal hiResGlobalY () const
void ignore ()
bool isAccepted () const
Qt::KeyboardModifiers modifiers () const
PointerType pointerType () const
const QPointpos () const
qreal pressure () const
 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)
qreal rotation () const
void setAccepted (bool accepted)
bool spontaneous () const
qreal tangentialPressure () const
Type type () const
qint64 uniqueId () const
int x () const
int xTilt () const
int y () const
int yTilt () const
int z () const
 ~QTabletEvent ()

Protected Attributes

QEventPrivate * d
int mDev
void * mExtra
QPoint mGPos
QPointF mHiResGlobalPos
Qt::KeyboardModifiers modState
int mPointerType
QPoint mPos
qreal mPress
qreal mRot
qreal mTangential
qint64 mUnique
int mXT
int mYT
int mZ
ushort t

The documentation for this class was generated from the following files:

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