You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
288 lines
15 KiB
288 lines
15 KiB
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
|
|
<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/src/kernel/qcursor.cpp:47 -->
|
|
<html>
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
|
|
<title>TQCursor Class</title>
|
|
<style type="text/css"><!--
|
|
fn { margin-left: 1cm; text-indent: -1cm; }
|
|
a:link { color: #004faf; text-decoration: none }
|
|
a:visited { color: #672967; text-decoration: none }
|
|
body { background: #ffffff; color: black; }
|
|
--></style>
|
|
</head>
|
|
<body>
|
|
|
|
<table border="0" cellpadding="0" cellspacing="0" width="100%">
|
|
<tr bgcolor="#E5E5E5">
|
|
<td valign=center>
|
|
<a href="index.html">
|
|
<font color="#004faf">Home</font></a>
|
|
| <a href="classes.html">
|
|
<font color="#004faf">All Classes</font></a>
|
|
| <a href="mainclasses.html">
|
|
<font color="#004faf">Main Classes</font></a>
|
|
| <a href="annotated.html">
|
|
<font color="#004faf">Annotated</font></a>
|
|
| <a href="groups.html">
|
|
<font color="#004faf">Grouped Classes</font></a>
|
|
| <a href="functions.html">
|
|
<font color="#004faf">Functions</font></a>
|
|
</td>
|
|
<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>TQCursor Class Reference</h1>
|
|
|
|
<p>The TQCursor class provides a mouse cursor with an arbitrary
|
|
shape.
|
|
<a href="#details">More...</a>
|
|
<p><tt>#include <<a href="qcursor-h.html">ntqcursor.h</a>></tt>
|
|
<p>Inherits <a href="ntqt.html">TQt</a>.
|
|
<p><a href="qcursor-members.html">List of all member functions.</a>
|
|
<h2>Public Members</h2>
|
|
<ul>
|
|
<li class=fn><a href="#TQCursor"><b>TQCursor</b></a> ()</li>
|
|
<li class=fn><a href="#TQCursor-2"><b>TQCursor</b></a> ( int shape )</li>
|
|
<li class=fn><a href="#TQCursor-3"><b>TQCursor</b></a> ( const TQBitmap & bitmap, const TQBitmap & mask, int hotX = -1, int hotY = -1 )</li>
|
|
<li class=fn><a href="#TQCursor-4"><b>TQCursor</b></a> ( const TQPixmap & pixmap, int hotX = -1, int hotY = -1 )</li>
|
|
<li class=fn><a href="#TQCursor-5"><b>TQCursor</b></a> ( const TQCursor & c )</li>
|
|
<li class=fn><a href="#~TQCursor"><b>~TQCursor</b></a> ()</li>
|
|
<li class=fn>TQCursor & <a href="#operator-eq"><b>operator=</b></a> ( const TQCursor & c )</li>
|
|
<li class=fn>int <a href="#shape"><b>shape</b></a> () const</li>
|
|
<li class=fn>void <a href="#setShape"><b>setShape</b></a> ( int shape )</li>
|
|
<li class=fn>const TQBitmap * <a href="#bitmap"><b>bitmap</b></a> () const</li>
|
|
<li class=fn>const TQBitmap * <a href="#mask"><b>mask</b></a> () const</li>
|
|
<li class=fn>TQPoint <a href="#hotSpot"><b>hotSpot</b></a> () const</li>
|
|
<li class=fn>HCURSOR <b>handle</b> () const</li>
|
|
<li class=fn><a href="#TQCursor-6"><b>TQCursor</b></a> ( HCURSOR handle )</li>
|
|
<li class=fn>HANDLE <a href="#handle"><b>handle</b></a> () const</li>
|
|
</ul>
|
|
<h2>Static Public Members</h2>
|
|
<ul>
|
|
<li class=fn>TQPoint <a href="#pos"><b>pos</b></a> ()</li>
|
|
<li class=fn>void <a href="#setPos"><b>setPos</b></a> ( int x, int y )</li>
|
|
<li class=fn>void <a href="#setPos-2"><b>setPos</b></a> ( const TQPoint & )</li>
|
|
<li class=fn>void <a href="#initialize"><b>initialize</b></a> ()</li>
|
|
<li class=fn>void <a href="#cleanup"><b>cleanup</b></a> ()</li>
|
|
</ul>
|
|
<h2>Related Functions</h2>
|
|
<ul>
|
|
<li class=fn>TQDataStream & <a href="#operator-lt-lt"><b>operator<<</b></a> ( TQDataStream & s, const TQCursor & c )</li>
|
|
<li class=fn>TQDataStream & <a href="#operator-gt-gt"><b>operator>></b></a> ( TQDataStream & s, TQCursor & c )</li>
|
|
</ul>
|
|
<hr><a name="details"></a><h2>Detailed Description</h2>
|
|
|
|
|
|
<p> The TQCursor class provides a mouse cursor with an arbitrary
|
|
shape.
|
|
<p>
|
|
|
|
<p> This class is mainly used to create mouse cursors that are
|
|
associated with particular widgets and to get and set the position
|
|
of the mouse cursor.
|
|
<p> TQt has a number of standard cursor shapes, but you can also make
|
|
custom cursor shapes based on a <a href="ntqbitmap.html">TQBitmap</a>, a mask and a hotspot.
|
|
<p> To associate a cursor with a widget, use <a href="ntqwidget.html#setCursor">TQWidget::setCursor</a>(). To
|
|
associate a cursor with all widgets (normally for a short period
|
|
of time), use <a href="ntqapplication.html#setOverrideCursor">TQApplication::setOverrideCursor</a>().
|
|
<p> To set a cursor shape use <a href="#setShape">TQCursor::setShape</a>() or use the TQCursor
|
|
constructor which takes the shape as argument, or you can use one
|
|
of the predefined cursors defined in the <a href="ntqt.html#CursorShape-enum">CursorShape</a> enum.
|
|
<p> If you want to create a cursor with your own bitmap, either use
|
|
the TQCursor constructor which takes a bitmap and a mask or the
|
|
constructor which takes a pixmap as arguments.
|
|
<p> To set or get the position of the mouse cursor use the static
|
|
methods <a href="#pos">TQCursor::pos</a>() and <a href="#setPos">TQCursor::setPos</a>().
|
|
<p> <center><img src="cursors.png" alt="Cursor Shapes"></center>
|
|
<p> <p>See also <a href="ntqwidget.html">TQWidget</a>, <a href="guibooks.html#fowler">GUI Design Handbook:
|
|
Cursors</a>, <a href="appearance.html">Widget Appearance and Style</a>, and <a href="shared.html">Implicitly and Explicitly Shared Classes</a>.
|
|
|
|
<p> On X11, TQt supports the <a href="http://www.xfree86.org/4.3.0/Xcursor.3.html">Xcursor</a>
|
|
library, which allows for full color icon themes. The table below
|
|
shows the cursor name used for each TQt::CursorShape value. If a
|
|
cursor cannot be found using the name shown below, a standard X11
|
|
cursor will be used instead. Note: X11 does not provide
|
|
appropriate cursors for all possible TQt::CursorShape values. It
|
|
is possible that some cursors will be taken from the Xcursor
|
|
theme, while others will use an internal bitmap cursor.
|
|
<p> <center><table cellpadding="4" cellspacing="2" border="0">
|
|
<tr bgcolor="#a2c511"> <th valign="top">TQt::CursorShape Values <th valign="top">Cursor Names
|
|
<tr bgcolor="#f0f0f0"> <td valign="top">TQt::ArrowCursor <td valign="top">left_ptr
|
|
<tr bgcolor="#d0d0d0"> <td valign="top">TQt::UpArrowCursor <td valign="top">up_arrow
|
|
<tr bgcolor="#f0f0f0"> <td valign="top">TQt::CrossCursor <td valign="top">cross
|
|
<tr bgcolor="#d0d0d0"> <td valign="top">TQt::WaitCursor <td valign="top">wait
|
|
<tr bgcolor="#f0f0f0"> <td valign="top">TQt::BusyCursor <td valign="top">left_ptr_watch
|
|
<tr bgcolor="#d0d0d0"> <td valign="top">TQt::IbeamCursor <td valign="top">ibeam
|
|
<tr bgcolor="#f0f0f0"> <td valign="top">TQt::SizeVerCursor <td valign="top">size_ver
|
|
<tr bgcolor="#d0d0d0"> <td valign="top">TQt::SizeHorCursor <td valign="top">size_hor
|
|
<tr bgcolor="#f0f0f0"> <td valign="top">TQt::SizeBDiagCursor <td valign="top">size_bdiag
|
|
<tr bgcolor="#d0d0d0"> <td valign="top">TQt::SizeFDiagCursor <td valign="top">size_fdiag
|
|
<tr bgcolor="#f0f0f0"> <td valign="top">TQt::SizeAllCursor <td valign="top">size_all
|
|
<tr bgcolor="#d0d0d0"> <td valign="top">TQt::SplitVCursor <td valign="top">split_v
|
|
<tr bgcolor="#f0f0f0"> <td valign="top">TQt::SplitHCursor <td valign="top">split_h
|
|
<tr bgcolor="#d0d0d0"> <td valign="top">TQt::PointingHandCursor <td valign="top">pointing_hand
|
|
<tr bgcolor="#f0f0f0"> <td valign="top">TQt::ForbiddenCursor <td valign="top">forbidden
|
|
<tr bgcolor="#d0d0d0"> <td valign="top">TQt::WhatsThisCursor <td valign="top">whats_this
|
|
</table></center>
|
|
|
|
<hr><h2>Member Function Documentation</h2>
|
|
<h3 class=fn><a name="TQCursor"></a>TQCursor::TQCursor ()
|
|
</h3>
|
|
Constructs a cursor with the default arrow shape.
|
|
|
|
<h3 class=fn><a name="TQCursor-2"></a>TQCursor::TQCursor ( int shape )
|
|
</h3>
|
|
Constructs a cursor with the specified <em>shape</em>.
|
|
<p> See <a href="ntqt.html#CursorShape-enum">CursorShape</a> for a list of shapes.
|
|
<p> <p>See also <a href="#setShape">setShape</a>().
|
|
|
|
<h3 class=fn><a name="TQCursor-3"></a>TQCursor::TQCursor ( const <a href="ntqbitmap.html">TQBitmap</a> & bitmap, const <a href="ntqbitmap.html">TQBitmap</a> & mask, int hotX = -1, int hotY = -1 )
|
|
</h3>
|
|
Constructs a custom bitmap cursor.
|
|
<p> <em>bitmap</em> and
|
|
<em>mask</em> make up the bitmap.
|
|
<em>hotX</em> and
|
|
<em>hotY</em> define the cursor's hot spot.
|
|
<p> If <em>hotX</em> is negative, it is set to the <tt>bitmap().width()/2</tt>.
|
|
If <em>hotY</em> is negative, it is set to the <tt>bitmap().height()/2</tt>.
|
|
<p> The cursor <em>bitmap</em> (B) and <em>mask</em> (M) bits are combined like this:
|
|
<ul>
|
|
<li> B=1 and M=1 gives black.
|
|
<li> B=0 and M=1 gives white.
|
|
<li> B=0 and M=0 gives transparent.
|
|
<li> B=1 and M=0 gives an undefined result.
|
|
</ul>
|
|
<p> Use the global TQt color <tt>color0</tt> to draw 0-pixels and <tt>color1</tt> to
|
|
draw 1-pixels in the bitmaps.
|
|
<p> Valid cursor sizes depend on the display hardware (or the
|
|
underlying window system). We recommend using 32x32 cursors,
|
|
because this size is supported on all platforms. Some platforms
|
|
also support 16x16, 48x48 and 64x64 cursors.
|
|
<p> <p>See also <a href="ntqbitmap.html#TQBitmap">TQBitmap::TQBitmap</a>() and <a href="ntqpixmap.html#setMask">TQBitmap::setMask</a>().
|
|
|
|
<h3 class=fn><a name="TQCursor-4"></a>TQCursor::TQCursor ( const <a href="ntqpixmap.html">TQPixmap</a> & pixmap, int hotX = -1, int hotY = -1 )
|
|
</h3>
|
|
Constructs a custom pixmap cursor.
|
|
<p> <em>pixmap</em> is the image. It is usual to give it a mask (set using
|
|
<a href="ntqpixmap.html#setMask">TQPixmap::setMask</a>()). <em>hotX</em> and <em>hotY</em> define the cursor's hot
|
|
spot.
|
|
<p> If <em>hotX</em> is negative, it is set to the <tt>pixmap().width()/2</tt>.
|
|
If <em>hotY</em> is negative, it is set to the <tt>pixmap().height()/2</tt>.
|
|
<p> Valid cursor sizes depend on the display hardware (or the
|
|
underlying window system). We recommend using 32x32 cursors,
|
|
because this size is supported on all platforms. Some platforms
|
|
also support 16x16, 48x48 and 64x64 cursors.
|
|
<p> Currently, only black-and-white pixmaps can be used.
|
|
<p> <p>See also <a href="ntqpixmap.html#TQPixmap">TQPixmap::TQPixmap</a>() and <a href="ntqpixmap.html#setMask">TQPixmap::setMask</a>().
|
|
|
|
<h3 class=fn><a name="TQCursor-5"></a>TQCursor::TQCursor ( const <a href="ntqcursor.html">TQCursor</a> & c )
|
|
</h3>
|
|
Constructs a copy of the cursor <em>c</em>.
|
|
|
|
<h3 class=fn><a name="TQCursor-6"></a>TQCursor::TQCursor ( HCURSOR handle )
|
|
</h3>
|
|
|
|
<p> Creates a cursor with the specified window system handle <em>handle</em>.
|
|
<p> <b>Warning:</b>
|
|
Portable in principle, but if you use it you are probably about to
|
|
do something non-portable. Be careful.
|
|
|
|
<h3 class=fn><a name="~TQCursor"></a>TQCursor::~TQCursor ()
|
|
</h3>
|
|
Destroys the cursor.
|
|
|
|
<h3 class=fn>const <a href="ntqbitmap.html">TQBitmap</a> * <a name="bitmap"></a>TQCursor::bitmap () const
|
|
</h3>
|
|
Returns the cursor bitmap, or 0 if it is one of the standard
|
|
cursors.
|
|
|
|
<h3 class=fn>void <a name="cleanup"></a>TQCursor::cleanup ()<tt> [static]</tt>
|
|
</h3>
|
|
Internal function that deinitializes the predefined cursors.
|
|
This function is called from the <a href="ntqapplication.html">TQApplication</a> destructor.
|
|
<p> <p>See also <a href="#initialize">initialize</a>().
|
|
|
|
<h3 class=fn>HANDLE <a name="handle"></a>TQCursor::handle () const
|
|
</h3>
|
|
Returns the window system cursor handle.
|
|
<p> <b>Warning:</b>
|
|
Portable in principle, but if you use it you are probably about to
|
|
do something non-portable. Be careful.
|
|
|
|
<h3 class=fn><a href="ntqpoint.html">TQPoint</a> <a name="hotSpot"></a>TQCursor::hotSpot () const
|
|
</h3>
|
|
Returns the cursor hot spot, or (0, 0) if it is one of the
|
|
standard cursors.
|
|
|
|
<h3 class=fn>void <a name="initialize"></a>TQCursor::initialize ()<tt> [static]</tt>
|
|
</h3>
|
|
Internal function that initializes the predefined cursors.
|
|
This function is called from the <a href="ntqapplication.html">TQApplication</a> constructor.
|
|
<p> <p>See also <a href="#cleanup">cleanup</a>().
|
|
|
|
<h3 class=fn>const <a href="ntqbitmap.html">TQBitmap</a> * <a name="mask"></a>TQCursor::mask () const
|
|
</h3>
|
|
Returns the cursor bitmap mask, or 0 if it is one of the standard
|
|
cursors.
|
|
|
|
<h3 class=fn><a href="ntqcursor.html">TQCursor</a> & <a name="operator-eq"></a>TQCursor::operator= ( const <a href="ntqcursor.html">TQCursor</a> & c )
|
|
</h3>
|
|
Assigns <em>c</em> to this cursor and returns a reference to this
|
|
cursor.
|
|
|
|
<h3 class=fn><a href="ntqpoint.html">TQPoint</a> <a name="pos"></a>TQCursor::pos ()<tt> [static]</tt>
|
|
</h3>
|
|
Returns the position of the cursor (hot spot) in global screen
|
|
coordinates.
|
|
<p> You can call <a href="ntqwidget.html#mapFromGlobal">TQWidget::mapFromGlobal</a>() to translate it to widget
|
|
coordinates.
|
|
<p> <p>See also <a href="#setPos">setPos</a>(), <a href="ntqwidget.html#mapFromGlobal">TQWidget::mapFromGlobal</a>(), and <a href="ntqwidget.html#mapToGlobal">TQWidget::mapToGlobal</a>().
|
|
|
|
<p>Examples: <a href="tutorial2-06.html#x2579">chart/canvasview.cpp</a>, <a href="fileiconview-example.html#x809">fileiconview/qfileiconview.cpp</a>, and <a href="menu-example.html#x1859">menu/menu.cpp</a>.
|
|
<h3 class=fn>void <a name="setPos"></a>TQCursor::setPos ( int x, int y )<tt> [static]</tt>
|
|
</h3>
|
|
Moves the cursor (hot spot) to the global screen position (<em>x</em>,
|
|
<em>y</em>).
|
|
<p> You can call <a href="ntqwidget.html#mapToGlobal">TQWidget::mapToGlobal</a>() to translate widget
|
|
coordinates to global screen coordinates.
|
|
<p> <p>See also <a href="#pos">pos</a>(), <a href="ntqwidget.html#mapFromGlobal">TQWidget::mapFromGlobal</a>(), and <a href="ntqwidget.html#mapToGlobal">TQWidget::mapToGlobal</a>().
|
|
|
|
<h3 class=fn>void <a name="setPos-2"></a>TQCursor::setPos ( const <a href="ntqpoint.html">TQPoint</a> & )<tt> [static]</tt>
|
|
</h3>
|
|
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
|
|
<p>
|
|
<h3 class=fn>void <a name="setShape"></a>TQCursor::setShape ( int shape )
|
|
</h3>
|
|
Sets the cursor to the shape identified by <em>shape</em>.
|
|
<p> See <a href="ntqt.html#CursorShape-enum">CursorShape</a> for the list of cursor shapes.
|
|
<p> <p>See also <a href="#shape">shape</a>().
|
|
|
|
<h3 class=fn>int <a name="shape"></a>TQCursor::shape () const
|
|
</h3>
|
|
Returns the cursor shape identifier. The return value is one of
|
|
the <a href="ntqt.html#CursorShape-enum">CursorShape</a> enum values (cast to an int).
|
|
<p> <p>See also <a href="#setShape">setShape</a>().
|
|
|
|
<hr><h2>Related Functions</h2>
|
|
<h3 class=fn><a href="ntqdatastream.html">TQDataStream</a> & <a name="operator-lt-lt"></a>operator<< ( <a href="ntqdatastream.html">TQDataStream</a> & s, const <a href="ntqcursor.html">TQCursor</a> & c )
|
|
</h3>
|
|
|
|
Writes the cursor <em>c</em> to the stream <em>s</em>.
|
|
<p> <p>See also <a href="datastreamformat.html">Format of the TQDataStream operators</a>.
|
|
|
|
<h3 class=fn><a href="ntqdatastream.html">TQDataStream</a> & <a name="operator-gt-gt"></a>operator>> ( <a href="ntqdatastream.html">TQDataStream</a> & s, <a href="ntqcursor.html">TQCursor</a> & c )
|
|
</h3>
|
|
|
|
Reads a cursor from the stream <em>s</em> and sets <em>c</em> to the read data.
|
|
<p> <p>See also <a href="datastreamformat.html">Format of the TQDataStream operators</a>.
|
|
|
|
<!-- eof -->
|
|
<hr><p>
|
|
This file is part of the <a href="index.html">TQt toolkit</a>.
|
|
Copyright © 1995-2007
|
|
<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
|
|
<table width=100% cellspacing=0 border=0><tr>
|
|
<td>Copyright © 2007
|
|
<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
|
|
<td align=right><div align=right>TQt 3.3.8</div>
|
|
</table></div></address></body>
|
|
</html>
|