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| 32 | <td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>QTabletEvent Class Reference</h1>
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| 33 |
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| 34 | <p>The QTabletEvent class contains parameters that describe a Tablet
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| 35 | event.
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| 36 | <a href="#details">More...</a>
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| 37 | <p><tt>#include <<a href="qevent-h.html">qevent.h</a>></tt>
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| 38 | <p>Inherits <a href="qevent.html">QEvent</a>.
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| 39 | <p><a href="qtabletevent-members.html">List of all member functions.</a>
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| 40 | <h2>Public Members</h2>
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| 41 | <ul>
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| 42 | <li class=fn>enum <a href="#TabletDevice-enum"><b>TabletDevice</b></a> { NoDevice = -1, Puck, Stylus, Eraser }</li>
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| 43 | <li class=fn><a href="#QTabletEvent"><b>QTabletEvent</b></a> ( Type t, const QPoint & pos, const QPoint & globalPos, int device, int pressure, int xTilt, int yTilt, const QPair<int, int> & uId )</li>
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| 44 | <li class=fn>QTabletEvent ( const QPoint & pos, const QPoint & globalPos, int device, int pressure, int xTilt, int yTilt, const QPair<int, int> & uId ) <em>(obsolete)</em></li>
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| 45 | <li class=fn>int <a href="#pressure"><b>pressure</b></a> () const</li>
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| 46 | <li class=fn>int <a href="#xTilt"><b>xTilt</b></a> () const</li>
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| 47 | <li class=fn>int <a href="#yTilt"><b>yTilt</b></a> () const</li>
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| 48 | <li class=fn>const QPoint & <a href="#pos"><b>pos</b></a> () const</li>
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| 49 | <li class=fn>const QPoint & <a href="#globalPos"><b>globalPos</b></a> () const</li>
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| 50 | <li class=fn>int <a href="#x"><b>x</b></a> () const</li>
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| 51 | <li class=fn>int <a href="#y"><b>y</b></a> () const</li>
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| 52 | <li class=fn>int <a href="#globalX"><b>globalX</b></a> () const</li>
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| 53 | <li class=fn>int <a href="#globalY"><b>globalY</b></a> () const</li>
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| 54 | <li class=fn>TabletDevice <a href="#device"><b>device</b></a> () const</li>
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| 55 | <li class=fn>int <a href="#isAccepted"><b>isAccepted</b></a> () const</li>
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| 56 | <li class=fn>void <a href="#accept"><b>accept</b></a> ()</li>
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| 57 | <li class=fn>void <a href="#ignore"><b>ignore</b></a> ()</li>
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| 58 | <li class=fn>QPair<int, int> <a href="#uniqueId"><b>uniqueId</b></a> ()</li>
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| 59 | </ul>
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| 60 | <hr><a name="details"></a><h2>Detailed Description</h2>
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| 61 |
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| 62 |
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| 63 | The QTabletEvent class contains parameters that describe a Tablet
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| 64 | event.
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| 65 | <p>
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| 66 | <p> Tablet Events are generated from a Wacom© tablet. Most of
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| 67 | the time you will want to deal with events from the tablet as if
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| 68 | they were events from a mouse, for example retrieving the position
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| 69 | with <a href="#x">x</a>(), <a href="#y">y</a>(), <a href="#pos">pos</a>(), <a href="#globalX">globalX</a>(), <a href="#globalY">globalY</a>() and <a href="#globalPos">globalPos</a>(). In
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| 70 | some situations you may wish to retrieve the extra information
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| 71 | provided by the tablet device driver, for example, you might want
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| 72 | to adjust color brightness based on pressure. QTabletEvent allows
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| 73 | you to get the <a href="#pressure">pressure</a>(), the <a href="#xTilt">xTilt</a>() and <a href="#yTilt">yTilt</a>(), as well as the
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| 74 | type of device being used with <a href="#device">device</a>() (see <a href="#TabletDevice-enum">TabletDevice</a>).
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| 75 | <p> A tablet event contains a special accept flag that indicates
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| 76 | whether the receiver wants the event. You should call
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| 77 | <a href="#accept">QTabletEvent::accept</a>() if you handle the tablet event; otherwise
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| 78 | it will be sent to the parent widget.
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| 79 | <p> The <a href="qwidget.html#setEnabled">QWidget::setEnabled</a>() function can be used to enable or
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| 80 | disable mouse and keyboard events for a widget.
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| 81 | <p> The event handler <a href="qwidget.html#tabletEvent">QWidget::tabletEvent</a>() receives all three types of tablet
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| 82 | events. Qt will first send a tabletEvent and then, if it is not accepted,
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| 83 | it will send a mouse event. This allows applications that don't utilize
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| 84 | tablets to use a tablet like a mouse while also enabling those who want to
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| 85 | use both tablets and mouses differently.
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| 86 | <p> <p>See also <a href="events.html">Event Classes</a>.
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| 87 |
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| 88 | <hr><h2>Member Type Documentation</h2>
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| 89 | <h3 class=fn><a name="TabletDevice-enum"></a>QTabletEvent::TabletDevice</h3>
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| 90 |
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| 91 | <p> This enum defines what type of device is generating the event.
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| 92 | <ul>
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| 93 | <li><tt>QTabletEvent::NoDevice</tt> - No device, or an unknown device.
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| 94 | <li><tt>QTabletEvent::Puck</tt> - A Puck (a device that is similar to a flat mouse with
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| 95 | a transparent circle with cross-hairs).
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| 96 | <li><tt>QTabletEvent::Stylus</tt> - A Stylus (the narrow end of the pen).
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| 97 | <li><tt>QTabletEvent::Eraser</tt> - An Eraser (the broad end of the pen).
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| 98 | </ul>
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| 99 | <hr><h2>Member Function Documentation</h2>
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| 100 | <h3 class=fn><a name="QTabletEvent"></a>QTabletEvent::QTabletEvent ( <a href="qevent.html#Type-enum">Type</a> t, const <a href="qpoint.html">QPoint</a> & pos, const <a href="qpoint.html">QPoint</a> & globalPos, int device, int pressure, int xTilt, int yTilt, const <a href="qpair.html">QPair</a><int, int> & uId )
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| 101 | </h3>
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| 102 |
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| 103 | Construct a tablet event of type <em>t</em>. The position of when the event occurred is given
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| 104 | int <em>pos</em> and <em>globalPos</em>. <em>device</em> contains the <a href="#TabletDevice-enum">device type</a>,
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| 105 | <em>pressure</em> contains the pressure exerted on the <em>device</em>, <em>xTilt</em> and <em>yTilt</em> contain
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| 106 | <em>device</em>'s degree of tilt from the X and Y axis respectively. The <em>uId</em> contains an
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| 107 | event id.
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| 108 | <p> On Irix, <em>globalPos</em> will contain the high-resolution coordinates received from the
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| 109 | tablet device driver, instead of from the windowing system.
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| 110 | <p> <p>See also <a href="#pos">pos</a>(), <a href="#globalPos">globalPos</a>(), <a href="#device">device</a>(), <a href="#pressure">pressure</a>(), <a href="#xTilt">xTilt</a>(), and <a href="#yTilt">yTilt</a>().
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| 111 |
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| 112 | <h3 class=fn><a name="QTabletEvent-2"></a>QTabletEvent::QTabletEvent ( const <a href="qpoint.html">QPoint</a> & pos, const <a href="qpoint.html">QPoint</a> & globalPos, int device, int pressure, int xTilt, int yTilt, const <a href="qpair.html">QPair</a><int, int> & uId )
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| 113 | </h3>
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| 114 | <b>This function is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
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| 115 | <p>
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| 116 | <p> Constructs a tablet event object. The position when the event
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| 117 | occurred is is given in <em>pos</em> and <em>globalPos</em>. <em>device</em>
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| 118 | contains the <a href="#TabletDevice-enum">device type</a>, <em>pressure</em>
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| 119 | contains the pressure exerted on the <em>device</em>, <em>xTilt</em> and <em>yTilt</em> contain the <em>device</em>'s degrees of tilt from the X and Y
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| 120 | axis respectively. The <em>uId</em> contains an event id.
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| 121 | <p> On Irix, <em>globalPos</em> will contain the high-resolution coordinates
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| 122 | received from the tablet device driver, instead of from the
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| 123 | windowing system.
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| 124 | <p> <p>See also <a href="#pos">pos</a>(), <a href="#globalPos">globalPos</a>(), <a href="#device">device</a>(), <a href="#pressure">pressure</a>(), <a href="#xTilt">xTilt</a>(), and <a href="#yTilt">yTilt</a>().
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| 125 |
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| 126 | <h3 class=fn>void <a name="accept"></a>QTabletEvent::accept ()
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| 127 | </h3>
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| 128 |
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| 129 | <p> Sets the accept flag of the tablet event object.
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| 130 | <p> Setting the accept flag indicates that the receiver of the event
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| 131 | wants the tablet event. Unwanted tablet events are sent to the
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| 132 | parent widget.
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| 133 | <p> The accept flag is set by default.
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| 134 | <p> <p>See also <a href="#ignore">ignore</a>().
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| 135 |
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| 136 | <h3 class=fn><a href="qtabletevent.html#TabletDevice-enum">TabletDevice</a> <a name="device"></a>QTabletEvent::device () const
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| 137 | </h3>
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| 138 |
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| 139 | <p> Returns the type of device that generated the event. Useful if you
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| 140 | want one end of the pen to do something different than the other.
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| 141 | <p> <p>See also <a href="#TabletDevice-enum">TabletDevice</a>.
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| 142 |
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| 143 | <h3 class=fn>const <a href="qpoint.html">QPoint</a> & <a name="globalPos"></a>QTabletEvent::globalPos () const
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| 144 | </h3>
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| 145 |
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| 146 | <p> Returns the global position of the device <em>at the time of the event</em>. This is important on asynchronous windows systems like X11;
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| 147 | whenever you move your widgets around in response to mouse events,
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| 148 | <a href="#globalPos">globalPos</a>() can differ significantly from the current position
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| 149 | <a href="qcursor.html#pos">QCursor::pos</a>().
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| 150 | <p> <p>See also <a href="#globalX">globalX</a>() and <a href="#globalY">globalY</a>().
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| 151 |
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| 152 | <h3 class=fn>int <a name="globalX"></a>QTabletEvent::globalX () const
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| 153 | </h3>
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| 154 |
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| 155 | <p> Returns the global x-position of the mouse pointer at the time of
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| 156 | the event.
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| 157 | <p> <p>See also <a href="#globalY">globalY</a>() and <a href="#globalPos">globalPos</a>().
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| 158 |
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| 159 | <h3 class=fn>int <a name="globalY"></a>QTabletEvent::globalY () const
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| 160 | </h3>
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| 161 |
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| 162 | <p> Returns the global y-position of the mouse pointer at the time of
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| 163 | the event.
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| 164 | <p> <p>See also <a href="#globalX">globalX</a>() and <a href="#globalPos">globalPos</a>().
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| 165 |
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| 166 | <h3 class=fn>void <a name="ignore"></a>QTabletEvent::ignore ()
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| 167 | </h3>
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| 168 |
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| 169 | <p> Clears the accept flag parameter of the tablet event object.
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| 170 | <p> Clearing the accept flag indicates that the event receiver does
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| 171 | not want the tablet event. Unwanted tablet events are sent to the
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| 172 | parent widget.
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| 173 | <p> The accept flag is set by default.
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| 174 | <p> <p>See also <a href="#accept">accept</a>().
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| 175 |
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| 176 | <h3 class=fn>int <a name="isAccepted"></a>QTabletEvent::isAccepted () const
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| 177 | </h3>
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| 178 |
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| 179 | <p> Returns TRUE if the receiver of the event handles the tablet
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| 180 | event; otherwise returns FALSE.
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| 181 |
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| 182 | <h3 class=fn>const <a href="qpoint.html">QPoint</a> & <a name="pos"></a>QTabletEvent::pos () const
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| 183 | </h3>
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| 184 |
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| 185 | <p> Returns the position of the device, relative to the widget that
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| 186 | received the event.
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| 187 | <p> If you move widgets around in response to mouse events, use
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| 188 | <a href="#globalPos">globalPos</a>() instead of this function.
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| 189 | <p> <p>See also <a href="#x">x</a>(), <a href="#y">y</a>(), and <a href="#globalPos">globalPos</a>().
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| 190 |
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| 191 | <h3 class=fn>int <a name="pressure"></a>QTabletEvent::pressure () const
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| 192 | </h3>
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| 193 |
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| 194 | <p> Returns the pressure that is exerted on the device. This number is
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| 195 | a value from 0 (no pressure) to 255 (maximum pressure). The
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| 196 | pressure is always scaled to be within this range no matter how
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| 197 | many pressure levels the underlying hardware supports.
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| 198 |
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| 199 | <h3 class=fn><a href="qpair.html">QPair</a><int, int> <a name="uniqueId"></a>QTabletEvent::uniqueId ()
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| 200 | </h3>
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| 201 |
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| 202 | <p> Returns a unique ID for the current device. It is possible to
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| 203 | generate a unique ID for any Wacom© device. This makes it
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| 204 | possible to differentiate between multiple devices being used at
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| 205 | the same time on the tablet. The <tt>first</tt> member contains a value
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| 206 | for the type, the <tt>second</tt> member contains a physical ID obtained
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| 207 | from the device. Each combination of these values is unique. Note:
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| 208 | for different platforms, the <tt>first</tt> value is different due to
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| 209 | different driver implementations.
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| 210 |
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| 211 | <h3 class=fn>int <a name="x"></a>QTabletEvent::x () const
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| 212 | </h3>
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| 213 |
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| 214 | <p> Returns the x-position of the device, relative to the widget that
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| 215 | received the event.
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| 216 | <p> <p>See also <a href="#y">y</a>() and <a href="#pos">pos</a>().
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| 217 |
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| 218 | <h3 class=fn>int <a name="xTilt"></a>QTabletEvent::xTilt () const
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| 219 | </h3>
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| 220 |
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| 221 | <p> Returns the difference from the perpendicular in the X Axis.
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| 222 | Positive values are towards the tablet's physical right. The angle
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| 223 | is in the range -60 to +60 degrees.
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| 224 | <p> <p>See also <a href="#yTilt">yTilt</a>().
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| 225 |
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| 226 | <h3 class=fn>int <a name="y"></a>QTabletEvent::y () const
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| 227 | </h3>
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| 228 |
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| 229 | <p> Returns the y-position of the device, relative to the widget that
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| 230 | received the event.
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| 231 | <p> <p>See also <a href="#x">x</a>() and <a href="#pos">pos</a>().
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| 232 |
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| 233 | <h3 class=fn>int <a name="yTilt"></a>QTabletEvent::yTilt () const
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| 234 | </h3>
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| 235 |
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| 236 | <p> Returns the difference from the perpendicular in the Y Axis.
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| 237 | Positive values are towards the bottom of the tablet. The angle is
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| 238 | within the range -60 to +60 degrees.
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| 239 | <p> <p>See also <a href="#xTilt">xTilt</a>().
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| 240 |
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| 241 | <!-- eof -->
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| 242 | <hr><p>
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| 243 | This file is part of the <a href="index.html">Qt toolkit</a>.
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| 244 | Copyright © 1995-2007
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| 245 | <a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
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| 246 | <table width=100% cellspacing=0 border=0><tr>
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| 247 | <td>Copyright © 2007
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| 248 | <a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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| 249 | <td align=right><div align=right>Qt 3.3.8</div>
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| 250 | </table></div></address></body>
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| 251 | </html>
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