<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<!-- /tmp/qt-3.0-reggie-28534/qt-x11-free-3.0.2/src/attic/qttableview.cpp:58 -->
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>QtTableView Class</title>
<style type="text/css"><!--
h3.fn,span.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>QtTableView Class Reference<br><small>[obsolete]</small></h1>
<p>The QtTableView class provides an abstract base for tables.
<a href="#details">More...</a>
<p><tt>#include <<a href="qttableview-h.html">qttableview.h</a>></tt>
<p>Inherits <a href="qframe.html">QFrame</a>.
<p>Inherited by <a href="qtmultilineedit.html">QtMultiLineEdit</a>.
<p><a href="qttableview-members.html">List of all member functions.</a>
<h2>Public Members</h2>
<ul>
<li><div class=fn>void <a href="#repaint-2"><b>repaint</b></a> ( bool erase = TRUE )</div></li>
<li><div class=fn>void <a href="#repaint"><b>repaint</b></a> ( int x, int y, int w, int h, bool erase = TRUE )</div></li>
<li><div class=fn>void <a href="#repaint-3"><b>repaint</b></a> ( const QRect & r, bool erase = TRUE )</div></li>
</ul>
<h2>Protected Members</h2>
<ul>
<li><div class=fn><a href="#QtTableView"><b>QtTableView</b></a> ( QWidget * parent = 0, const char * name = 0, WFlags f = 0 )</div></li>
<li><div class=fn><a href="#~QtTableView"><b>~QtTableView</b></a> ()</div></li>
<li><div class=fn>int <a href="#numRows"><b>numRows</b></a> () const</div></li>
<li><div class=fn>virtual void <a href="#setNumRows"><b>setNumRows</b></a> ( int rows )</div></li>
<li><div class=fn>int <a href="#numCols"><b>numCols</b></a> () const</div></li>
<li><div class=fn>virtual void <a href="#setNumCols"><b>setNumCols</b></a> ( int cols )</div></li>
<li><div class=fn>int <a href="#topCell"><b>topCell</b></a> () const</div></li>
<li><div class=fn>virtual void <a href="#setTopCell"><b>setTopCell</b></a> ( int row )</div></li>
<li><div class=fn>int <a href="#leftCell"><b>leftCell</b></a> () const</div></li>
<li><div class=fn>virtual void <a href="#setLeftCell"><b>setLeftCell</b></a> ( int col )</div></li>
<li><div class=fn>virtual void <a href="#setTopLeftCell"><b>setTopLeftCell</b></a> ( int row, int col )</div></li>
<li><div class=fn>int <a href="#xOffset"><b>xOffset</b></a> () const</div></li>
<li><div class=fn>virtual void <a href="#setXOffset"><b>setXOffset</b></a> ( int x )</div></li>
<li><div class=fn>int <a href="#yOffset"><b>yOffset</b></a> () const</div></li>
<li><div class=fn>virtual void <a href="#setYOffset"><b>setYOffset</b></a> ( int y )</div></li>
<li><div class=fn>virtual void <a href="#setOffset"><b>setOffset</b></a> ( int x, int y, bool updateScrBars = TRUE )</div></li>
<li><div class=fn>virtual int <a href="#cellWidth"><b>cellWidth</b></a> ( int col )</div></li>
<li><div class=fn>virtual int <a href="#cellHeight"><b>cellHeight</b></a> ( int row )</div></li>
<li><div class=fn>int <a href="#cellWidth-2"><b>cellWidth</b></a> () const</div></li>
<li><div class=fn>int <a href="#cellHeight-2"><b>cellHeight</b></a> () const</div></li>
<li><div class=fn>virtual void <a href="#setCellWidth"><b>setCellWidth</b></a> ( int cellWidth )</div></li>
<li><div class=fn>virtual void <a href="#setCellHeight"><b>setCellHeight</b></a> ( int cellHeight )</div></li>
<li><div class=fn>virtual int <a href="#totalWidth"><b>totalWidth</b></a> ()</div></li>
<li><div class=fn>virtual int <a href="#totalHeight"><b>totalHeight</b></a> ()</div></li>
<li><div class=fn>uint <a href="#tableFlags"><b>tableFlags</b></a> () const</div></li>
<li><div class=fn>bool <a href="#testTableFlags"><b>testTableFlags</b></a> ( uint f ) const</div></li>
<li><div class=fn>virtual void <a href="#setTableFlags"><b>setTableFlags</b></a> ( uint f )</div></li>
<li><div class=fn>void <a href="#clearTableFlags"><b>clearTableFlags</b></a> ( uint f = ~0 )</div></li>
<li><div class=fn>bool <a href="#autoUpdate"><b>autoUpdate</b></a> () const</div></li>
<li><div class=fn>virtual void <a href="#setAutoUpdate"><b>setAutoUpdate</b></a> ( bool enable )</div></li>
<li><div class=fn>void <a href="#updateCell"><b>updateCell</b></a> ( int row, int col, bool erase = TRUE )</div></li>
<li><div class=fn>QRect <a href="#cellUpdateRect"><b>cellUpdateRect</b></a> () const</div></li>
<li><div class=fn>QRect <a href="#viewRect"><b>viewRect</b></a> () const</div></li>
<li><div class=fn>int <a href="#lastRowVisible"><b>lastRowVisible</b></a> () const</div></li>
<li><div class=fn>int <a href="#lastColVisible"><b>lastColVisible</b></a> () const</div></li>
<li><div class=fn>bool <a href="#rowIsVisible"><b>rowIsVisible</b></a> ( int row ) const</div></li>
<li><div class=fn>bool <a href="#colIsVisible"><b>colIsVisible</b></a> ( int col ) const</div></li>
<li><div class=fn>QScrollBar * <a href="#verticalScrollBar"><b>verticalScrollBar</b></a> () const</div></li>
<li><div class=fn>QScrollBar * <a href="#horizontalScrollBar"><b>horizontalScrollBar</b></a> () const</div></li>
<li><div class=fn>virtual void <a href="#paintCell"><b>paintCell</b></a> ( QPainter * p, int row, int col ) = 0</div></li>
<li><div class=fn>virtual void <a href="#setupPainter"><b>setupPainter</b></a> ( QPainter * )</div></li>
<li><div class=fn>virtual void <a href="#paintEvent"><b>paintEvent</b></a> ( QPaintEvent * e )</div></li>
<li><div class=fn>int <a href="#findRow"><b>findRow</b></a> ( int yPos ) const</div></li>
<li><div class=fn>int <a href="#findCol"><b>findCol</b></a> ( int xPos ) const</div></li>
<li><div class=fn>bool <a href="#rowYPos"><b>rowYPos</b></a> ( int row, int * yPos ) const</div></li>
<li><div class=fn>bool <a href="#colXPos"><b>colXPos</b></a> ( int col, int * xPos ) const</div></li>
<li><div class=fn>int <a href="#maxXOffset"><b>maxXOffset</b></a> ()</div></li>
<li><div class=fn>int <a href="#maxYOffset"><b>maxYOffset</b></a> ()</div></li>
<li><div class=fn>int <a href="#maxColOffset"><b>maxColOffset</b></a> ()</div></li>
<li><div class=fn>int <a href="#maxRowOffset"><b>maxRowOffset</b></a> ()</div></li>
<li><div class=fn>int <a href="#minViewX"><b>minViewX</b></a> () const</div></li>
<li><div class=fn>int <a href="#minViewY"><b>minViewY</b></a> () const</div></li>
<li><div class=fn>int <a href="#maxViewX"><b>maxViewX</b></a> () const</div></li>
<li><div class=fn>int <a href="#maxViewY"><b>maxViewY</b></a> () const</div></li>
<li><div class=fn>int <a href="#viewWidth"><b>viewWidth</b></a> () const</div></li>
<li><div class=fn>int <a href="#viewHeight"><b>viewHeight</b></a> () const</div></li>
<li><div class=fn>void <a href="#scroll"><b>scroll</b></a> ( int xPixels, int yPixels )</div></li>
<li><div class=fn>void <a href="#updateScrollBars"><b>updateScrollBars</b></a> ()</div></li>
<li><div class=fn>void <a href="#updateTableSize"><b>updateTableSize</b></a> ()</div></li>
</ul>
<hr><a name="details"></a><h2>Detailed Description</h2>
The QtTableView class provides an abstract base for tables.
<p> <b>This class is obsolete.</b> It is provided to keep old source working. We strongly advise against using it in new code.
<p> A table view consists of a number of abstract cells organized in rows
and columns, and a visible part called a view. The cells are identified
with a row index and a column index. The top-left cell is in row 0,
column 0.
<p> The behavior of the widget can be finely tuned using
<a href="#setTableFlags">setTableFlags</a>(); a typical subclass will consist of little more than a
call to setTableFlags(), some table content manipulation and an
implementation of <a href="#paintCell">paintCell</a>(). Subclasses that need cells with
variable width or height must reimplement <a href="#cellHeight">cellHeight</a>() and/or
<a href="#cellWidth">cellWidth</a>(). Use <a href="#updateTableSize">updateTableSize</a>() to tell QtTableView when the
width or height has changed.
<p> When you read this documentation, it is important to understand the
distinctions among the four pixel coordinate systems involved.
<p> <ol type=1>
<li> The <em>cell</em> coordinates. (0,0) is the top-left corner of a cell.
Cell coordinates are used by functions such as paintCell().
<p> <li> The <em>table</em> coordinates. (0,0) is the top-left corner of the cell at
row 0 and column 0. These coordinates are absolute; that is, they are
independent of what part of the table is visible at the moment. They are
used by functions such as <a href="#setXOffset">setXOffset</a>() or <a href="#maxYOffset">maxYOffset</a>().
<p> <li> The <em>widget</em> coordinates. (0,0) is the top-left corner of the widget,
<em>including</em> the frame. They are used by functions such as <a href="#repaint">repaint</a>().
<p> <li> The <em>view</em> coordinates. (0,0) is the top-left corner of the view, <em>excluding</em> the frame. This is the least-used coordinate system; it is used by
functions such as <a href="#viewWidth">viewWidth</a>(). </ol>
<p> It is rather unfortunate that we have to use four different
coordinate systems, but there was no alternative to provide a flexible and
powerful base class.
<p> Note: The row,column indices are always given in that order,
i.e., first the vertical (row), then the horizontal (column). This is
the opposite order of all pixel operations, which take first the
horizontal (x) and then the vertical (y).
<p> <img src=qtablevw-m.png> <img src=qtablevw-w.png>
<p> <b>Warning:</b> the functions <a href="#setNumRows">setNumRows</a>(), <a href="#setNumCols">setNumCols</a>(), <a href="#setCellHeight">setCellHeight</a>(),
<a href="#setCellWidth">setCellWidth</a>(), <a href="#setTableFlags">setTableFlags</a>() and <a href="#clearTableFlags">clearTableFlags</a>() may cause
virtual functions such as <a href="#cellWidth">cellWidth</a>() and <a href="#cellHeight">cellHeight</a>() to be called,
even if <a href="#autoUpdate">autoUpdate</a>() is FALSE. This may cause errors if relevant
state variables are not initialized.
<p> <b>Warning:</b> Experience has shown that use of this widget tends to cause
more bugs than expected and our analysis indicates that the widget's
very flexibility is the problem. If <a href="qscrollview.html">QScrollView</a> or <a href="qlistbox.html">QListBox</a> can
easily be made to do the job you need, we recommend subclassing
those widgets rather than QtTableView. In addition, QScrollView makes
it easy to have child widgets inside tables, which QtTableView
doesn't support at all.
<p> <p>See also <a href="qscrollview.html">QScrollView</a> and <a href="guibooks.html#fowler">GUI Design Handbook: Table</a>.
<hr><h2>Member Function Documentation</h2>
<h3 class=fn><a name="QtTableView"></a>QtTableView::QtTableView ( <a href="qwidget.html">QWidget</a> * parent = 0, const char * name = 0, WFlags f = 0 )<tt> [protected]</tt>
</h3>
Constructs a table view. The <em>parent</em>, <em>name</em> and \f arguments
are passed to the <a href="qframe.html">QFrame</a> constructor.
<p> The <a href="#setTableFlags">table flags</a> are all cleared (set to 0).
Set <tt>Tbl_autoVScrollBar</tt> or <tt>Tbl_autoHScrollBar</tt> to get automatic scroll
bars and <tt>Tbl_clipCellPainting</tt> to get safe clipping.
<p> The <a href="#setCellHeight">cell height</a> and <a href="#setCellWidth">cell width</a> are set to 0.
<p> Frame line shapes (QFrame::HLink and QFrame::VLine) are disallowed;
see <a href="qframe.html#setFrameStyle">QFrame::setFrameStyle</a>().
<p> Note that the <em>f</em> argument is <em>not</em> <a href="#setTableFlags">table
flags</a> but rather <a href="qwidget.html#QWidget">widget
flags.</a>
<p>
<h3 class=fn><a name="~QtTableView"></a>QtTableView::~QtTableView ()<tt> [protected]</tt>
</h3>
Destroys the table view.
<h3 class=fn>bool <a name="autoUpdate"></a>QtTableView::autoUpdate () const<tt> [protected]</tt>
</h3>
<p> Returns TRUE if the view updates itself automatically whenever it
is changed in some way.
<p> <p>See also <a href="#setAutoUpdate">setAutoUpdate</a>().
<h3 class=fn>int <a name="cellHeight"></a>QtTableView::cellHeight ( int row )<tt> [virtual protected]</tt>
</h3>
Returns the height of row <em>row</em> in pixels.
<p> This function is virtual and must be reimplemented by subclasses that
have variable cell heights. Note that if the total table height
changes, <a href="#updateTableSize">updateTableSize</a>() must be called.
<p> <p>See also <a href="#setCellHeight">setCellHeight</a>(), <a href="#cellWidth">cellWidth</a>() and <a href="#totalHeight">totalHeight</a>().
<h3 class=fn>int <a name="cellHeight-2"></a>QtTableView::cellHeight () const<tt> [protected]</tt>
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Returns the row height, in pixels. Returns 0 if the rows have
variable heights.
<p> <p>See also <a href="#setCellHeight">setCellHeight</a>() and <a href="#cellWidth">cellWidth</a>().
<h3 class=fn><a href="qrect.html">QRect</a> <a name="cellUpdateRect"></a>QtTableView::cellUpdateRect () const<tt> [protected]</tt>
</h3>
<p> This function should be called only from the <a href="#paintCell">paintCell</a>() function in
subclasses. It returns the portion of a cell that actually needs to be
updated in <em>cell</em> coordinates. This is useful only for non-trivial
paintCell().
<p>
<h3 class=fn>int <a name="cellWidth"></a>QtTableView::cellWidth ( int col )<tt> [virtual protected]</tt>
</h3>
Returns the width of column <em>col</em> in pixels.
<p> This function is virtual and must be reimplemented by subclasses that
have variable cell widths. Note that if the total table width
changes, <a href="#updateTableSize">updateTableSize</a>() must be called.
<p> <p>See also <a href="#setCellWidth">setCellWidth</a>(), <a href="#cellHeight">cellHeight</a>(), <a href="#totalWidth">totalWidth</a>() and <a href="#updateTableSize">updateTableSize</a>().
<h3 class=fn>int <a name="cellWidth-2"></a>QtTableView::cellWidth () const<tt> [protected]</tt>
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Returns the column width in pixels. Returns 0 if the columns have
variable widths.
<p> <p>See also <a href="#setCellWidth">setCellWidth</a>() and <a href="#cellHeight">cellHeight</a>().
<h3 class=fn>void <a name="clearTableFlags"></a>QtTableView::clearTableFlags ( uint f = ~0 )<tt> [protected]</tt>
</h3>
Clears the <a href="#setTableFlags">table flags</a> that are set
in <em>f</em>.
<p> Example (clears a single flag):
<pre>
<a href="#clearTableFlags">clearTableFlags</a>( Tbl_snapToGrid );
</pre>
<p> The default argument clears all flags.
<p> <p>See also <a href="#setTableFlags">setTableFlags</a>(), <a href="#testTableFlags">testTableFlags</a>() and <a href="#tableFlags">tableFlags</a>().
<h3 class=fn>bool <a name="colIsVisible"></a>QtTableView::colIsVisible ( int col ) const<tt> [protected]</tt>
</h3>
Returns TRUE if <em>col</em> is at least partially visible.
<p>See also <a href="#rowIsVisible">rowIsVisible</a>().
<h3 class=fn>bool <a name="colXPos"></a>QtTableView::colXPos ( int col, int * xPos ) const<tt> [protected]</tt>
</h3>
Computes the position in the widget of column <em>col</em>.
<p> Returns TRUE and stores the result in <em>*xPos</em> (in <em>widget</em>
coordinates) if the column is visible. Returns FALSE and does not
modify <em>*xPos</em> if <em>col</em> is invisible or invalid.
<p> <p>See also <a href="#rowYPos">rowYPos</a>() and <a href="#findCol">findCol</a>().
<h3 class=fn>int <a name="findCol"></a>QtTableView::findCol ( int xPos ) const<tt> [protected]</tt>
</h3>
Returns the index of the column at position <em>xPos</em>, where <em>xPos</em> is
in <em>widget</em> coordinates. Returns -1 if <em>xPos</em> is outside the valid
range.
<p> <p>See also <a href="#findRow">findRow</a>() and <a href="#colXPos">colXPos</a>().
<h3 class=fn>int <a name="findRow"></a>QtTableView::findRow ( int yPos ) const<tt> [protected]</tt>
</h3>
Returns the index of the row at position <em>yPos</em>, where <em>yPos</em> is in
<em>widget</em> coordinates. Returns -1 if <em>yPos</em> is outside the valid
range.
<p> <p>See also <a href="#findCol">findCol</a>() and <a href="#rowYPos">rowYPos</a>().
<h3 class=fn><a href="qscrollbar.html">QScrollBar</a> * <a name="horizontalScrollBar"></a>QtTableView::horizontalScrollBar () const<tt> [protected]</tt>
</h3>
Returns a pointer to the horizontal scroll bar mainly so you can
<a href="qobject.html#connect">connect</a>() to its signals. Note that the scroll bar works in pixel
values; use <a href="#findCol">findCol</a>() to translate to cell numbers.
<h3 class=fn>int <a name="lastColVisible"></a>QtTableView::lastColVisible () const<tt> [protected]</tt>
</h3>
Returns the index of the last (right) column in the view.
The index of the first column is 0.
<p> If no columns are visible it returns -1. This can happen if the
view is too narrow for the first column and Tbl_cutCellsH is set.
<p> <p>See also <a href="#lastRowVisible">lastRowVisible</a>().
<h3 class=fn>int <a name="lastRowVisible"></a>QtTableView::lastRowVisible () const<tt> [protected]</tt>
</h3>
Returns the index of the last (bottom) row in the view.
The index of the first row is 0.
<p> If no rows are visible it returns -1. This can happen if the
view is too small for the first row and Tbl_cutCellsV is set.
<p> <p>See also <a href="#lastColVisible">lastColVisible</a>().
<h3 class=fn>int <a name="leftCell"></a>QtTableView::leftCell () const<tt> [protected]</tt>
</h3>
Returns the index of the first column in the table that is visible in
the view. The index of the very leftmost column is 0.
<p>See also <a href="#topCell">topCell</a>() and <a href="#setLeftCell">setLeftCell</a>().
<h3 class=fn>int <a name="maxColOffset"></a>QtTableView::maxColOffset ()<tt> [protected]</tt>
</h3>
Returns the index of the last column, which may be at the left edge
of the view.
<p> Depending on the <a href="#setTableFlags">Tbl_scrollLastHCell</a> flag,
this may or may not be the last column.
<p> <p>See also <a href="#maxXOffset">maxXOffset</a>() and <a href="#maxRowOffset">maxRowOffset</a>().
<h3 class=fn>int <a name="maxRowOffset"></a>QtTableView::maxRowOffset ()<tt> [protected]</tt>
</h3>
Returns the index of the last row, which may be at the top edge of
the view.
<p> Depending on the <a href="#setTableFlags">Tbl_scrollLastVCell</a> flag,
this may or may not be the last row.
<p> <p>See also <a href="#maxYOffset">maxYOffset</a>() and <a href="#maxColOffset">maxColOffset</a>().
<h3 class=fn>int <a name="maxViewX"></a>QtTableView::maxViewX () const<tt> [protected]</tt>
</h3>
Returns the rightmost pixel of the table view in <em>view</em>
coordinates. This excludes the frame and any scroll bar, but
includes blank pixels to the right of the visible table data.
<p> <p>See also <a href="#maxViewY">maxViewY</a>(), <a href="#viewWidth">viewWidth</a>() and <a href="qframe.html#contentsRect-prop">contentsRect</a>.
<h3 class=fn>int <a name="maxViewY"></a>QtTableView::maxViewY () const<tt> [protected]</tt>
</h3>
Returns the bottom pixel of the table view in <em>view</em>
coordinates. This excludes the frame and any scroll bar, but
includes blank pixels below the visible table data.
<p> <p>See also <a href="#maxViewX">maxViewX</a>(), <a href="#viewHeight">viewHeight</a>() and <a href="qframe.html#contentsRect-prop">contentsRect</a>.
<h3 class=fn>int <a name="maxXOffset"></a>QtTableView::maxXOffset ()<tt> [protected]</tt>
</h3>
Returns the maximum horizontal offset within the table of the
view's left edge in <em>table</em> coordinates.
<p> This is used mainly to set the horizontal scroll bar's range.
<p> <p>See also <a href="#maxColOffset">maxColOffset</a>(), <a href="#maxYOffset">maxYOffset</a>() and <a href="#totalWidth">totalWidth</a>().
<h3 class=fn>int <a name="maxYOffset"></a>QtTableView::maxYOffset ()<tt> [protected]</tt>
</h3>
Returns the maximum vertical offset within the table of the
view's top edge in <em>table</em> coordinates.
<p> This is used mainly to set the vertical scroll bar's range.
<p> <p>See also <a href="#maxRowOffset">maxRowOffset</a>(), <a href="#maxXOffset">maxXOffset</a>() and <a href="#totalHeight">totalHeight</a>().
<h3 class=fn>int <a name="minViewX"></a>QtTableView::minViewX () const<tt> [protected]</tt>
</h3>
Returns the leftmost pixel of the table view in <em>view</em>
coordinates. This excludes the frame and any header.
<p> <p>See also <a href="#maxViewY">maxViewY</a>(), <a href="#viewWidth">viewWidth</a>() and <a href="qframe.html#contentsRect-prop">contentsRect</a>.
<h3 class=fn>int <a name="minViewY"></a>QtTableView::minViewY () const<tt> [protected]</tt>
</h3>
Returns the top pixel of the table view in <em>view</em>
coordinates. This excludes the frame and any header.
<p> <p>See also <a href="#maxViewX">maxViewX</a>(), <a href="#viewHeight">viewHeight</a>() and <a href="qframe.html#contentsRect-prop">contentsRect</a>.
<h3 class=fn>int <a name="numCols"></a>QtTableView::numCols () const<tt> [protected]</tt>
</h3>
Returns the number of columns in the table.
<p>See also <a href="#numRows">numRows</a>() and <a href="#setNumCols">setNumCols</a>().
<h3 class=fn>int <a name="numRows"></a>QtTableView::numRows () const<tt> [protected]</tt>
</h3>
Returns the number of rows in the table.
<p>See also <a href="#numCols">numCols</a>() and <a href="#setNumRows">setNumRows</a>().
<h3 class=fn>void <a name="paintCell"></a>QtTableView::paintCell ( <a href="qpainter.html">QPainter</a> * p, int row, int col )<tt> [pure virtual protected]</tt>
</h3>
<p> This pure virtual function is called to paint the single cell at <em>(row,col)</em> using <em>p</em>, which is open when <a href="#paintCell">paintCell</a>() is called and
must remain open.
<p> The coordinate system is <a href="qpainter.html#translate">translated</a>
so that the origin is at the top-left corner of the cell to be
painted, i.e. <em>cell</em> coordinates. Do not scale or shear the coordinate
system (or if you do, restore the transformation matrix before you
return).
<p> The painter is not clipped by default and for maximum efficiency. For safety,
call <a href="#setTableFlags">setTableFlags</a>(Tbl_clipCellPainting) to enable clipping.
<p> <p>See also <a href="#paintEvent">paintEvent</a>() and <a href="#setTableFlags">setTableFlags</a>().
<p>Reimplemented in <a href="qtmultilineedit.html#paintCell">QtMultiLineEdit</a>.
<h3 class=fn>void <a name="paintEvent"></a>QtTableView::paintEvent ( <a href="qpaintevent.html">QPaintEvent</a> * e )<tt> [virtual protected]</tt>
</h3>
Handles paint events, <em>e</em>, for the table view.
<p> Calls <a href="#paintCell">paintCell</a>() for the cells that needs to be repainted.
<p>Reimplemented from <a href="qframe.html#paintEvent">QFrame</a>.
<h3 class=fn>void <a name="repaint"></a>QtTableView::repaint ( int x, int y, int w, int h, bool erase = TRUE )
</h3>
Repaints the table view directly by calling <a href="#paintEvent">paintEvent</a>() directly
unless updates are disabled.
<p> Erases the view area <em>(x,y,w,h)</em> if <em>erase</em> is TRUE. Parameters <em>(x,y)</em> are in <em>widget</em> coordinates.
<p> If <em>w</em> is negative, it is replaced with <code>width() - x</code>.
If <em>h</em> is negative, it is replaced with <code>height() - y</code>.
<p> Doing a <a href="#repaint">repaint</a>() usually is faster than doing an <a href="qwidget.html#update">update</a>(), but
calling update() many times in a row will generate a single paint
event.
<p> At present, QtTableView is the only widget that reimplements <a href="qwidget.html#repaint">repaint()</a>. It does this because by
clearing and then repainting one cell at at time, it can make the
screen flicker less than it would otherwise.
<h3 class=fn>void <a name="repaint-2"></a>QtTableView::repaint ( bool erase = TRUE )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Repaints the entire view.
<h3 class=fn>void <a name="repaint-3"></a>QtTableView::repaint ( const <a href="qrect.html">QRect</a> & r, bool erase = TRUE )
</h3>
This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
<p> Replaints rectangle <em>r</em>. If <em>erase</em> is TRUE draws the background
using the palette's background.
<h3 class=fn>bool <a name="rowIsVisible"></a>QtTableView::rowIsVisible ( int row ) const<tt> [protected]</tt>
</h3>
Returns TRUE if <em>row</em> is at least partially visible.
<p>See also <a href="#colIsVisible">colIsVisible</a>().
<h3 class=fn>bool <a name="rowYPos"></a>QtTableView::rowYPos ( int row, int * yPos ) const<tt> [protected]</tt>
</h3>
Computes the position in the widget of row <em>row</em>.
<p> Returns TRUE and stores the result in <em>*yPos</em> (in <em>widget</em>
coordinates) if the row is visible. Returns FALSE and does not modify
<em>*yPos</em> if <em>row</em> is invisible or invalid.
<p> <p>See also <a href="#colXPos">colXPos</a>() and <a href="#findRow">findRow</a>().
<h3 class=fn>void <a name="scroll"></a>QtTableView::scroll ( int xPixels, int yPixels )<tt> [protected]</tt>
</h3>
Moves the visible area of the table right by <em>xPixels</em> and
down by <em>yPixels</em> pixels. Both may be negative.
<p> <b>Warning:</b> You might find that <a href="qscrollview.html">QScrollView</a> offers a higher-level of
functionality than using QtTableView and this function.
<p> This function is <em>not</em> the same as <a href="qwidget.html#scroll">QWidget::scroll</a>(); in particular,
the signs of <em>xPixels</em> and <em>yPixels</em> have the reverse semantics.
<p> <p>See also <a href="#setXOffset">setXOffset</a>(), <a href="#setYOffset">setYOffset</a>(), <a href="#setOffset">setOffset</a>(), <a href="#setTopCell">setTopCell</a>() and <a href="#setLeftCell">setLeftCell</a>().
<h3 class=fn>void <a name="setAutoUpdate"></a>QtTableView::setAutoUpdate ( bool enable )<tt> [virtual protected]</tt>
</h3>
Sets the auto-update option of the table view to <em>enable</em>.
<p> If <em>enable</em> is TRUE (this is the default), the view updates itself
automatically whenever it has changed in some way (for example, when a
<a href="#setTableFlags">flag</a> is changed).
<p> If <em>enable</em> is FALSE, the view does NOT repaint itself or update
its internal state variables when it is changed. This can be
useful to avoid flicker during large changes and is singularly
useless otherwise. Disable auto-update, do the changes, re-enable
auto-update and call <a href="#repaint">repaint</a>().
<p> <b>Warning:</b> Do not leave the view in this state for a long time
(i.e., between events). If, for example, the user interacts with the
view when auto-update is off, strange things can happen.
<p> Setting auto-update to TRUE does not repaint the view; you must call
repaint() to do this.
<p> <p>See also <a href="#autoUpdate">autoUpdate</a>() and <a href="#repaint">repaint</a>().
<p>Reimplemented in <a href="qtmultilineedit.html#setAutoUpdate">QtMultiLineEdit</a>.
<h3 class=fn>void <a name="setCellHeight"></a>QtTableView::setCellHeight ( int cellHeight )<tt> [virtual protected]</tt>
</h3>
Sets the height in pixels of the table cells to <em>cellHeight</em>.
<p> Setting it to 0 means that the row height is variable. When set
to 0 (this is the default), QtTableView calls the virtual function
<a href="#cellHeight">cellHeight</a>() to get the height.
<p> <p>See also <a href="#cellHeight">cellHeight</a>(), <a href="#setCellWidth">setCellWidth</a>(), <a href="#totalHeight">totalHeight</a>() and <a href="#numRows">numRows</a>().
<h3 class=fn>void <a name="setCellWidth"></a>QtTableView::setCellWidth ( int cellWidth )<tt> [virtual protected]</tt>
</h3>
Sets the width in pixels of the table cells to <em>cellWidth</em>.
<p> Setting it to 0 means that the column width is variable. When
set to 0 (this is the default) QtTableView calls the virtual function
<a href="#cellWidth">cellWidth</a>() to get the width.
<p> <p>See also <a href="#cellWidth">cellWidth</a>(), <a href="#setCellHeight">setCellHeight</a>(), <a href="#totalWidth">totalWidth</a>() and <a href="#numCols">numCols</a>().
<h3 class=fn>void <a name="setLeftCell"></a>QtTableView::setLeftCell ( int col )<tt> [virtual protected]</tt>
</h3>
Scrolls the table so that <em>col</em> becomes the leftmost
column. The index of the leftmost column is 0.
<p>See also <a href="#setXOffset">setXOffset</a>(), <a href="#setTopLeftCell">setTopLeftCell</a>() and <a href="#setTopCell">setTopCell</a>().
<h3 class=fn>void <a name="setNumCols"></a>QtTableView::setNumCols ( int cols )<tt> [virtual protected]</tt>
</h3>
Sets the number of columns of the table to <em>cols</em> (must be non-negative).
Does not change <a href="#leftCell">leftCell</a>().
<p> The table repaints itself automatically if <a href="#autoUpdate">autoUpdate</a>() is set.
<p> <p>See also <a href="#numCols">numCols</a>(), <a href="#numRows">numRows</a>() and <a href="#setNumRows">setNumRows</a>().
<h3 class=fn>void <a name="setNumRows"></a>QtTableView::setNumRows ( int rows )<tt> [virtual protected]</tt>
</h3>
Sets the number of rows of the table to <em>rows</em> (must be non-negative).
Does not change <a href="#topCell">topCell</a>().
<p> The table repaints itself automatically if <a href="#autoUpdate">autoUpdate</a>() is set.
<p> <p>See also <a href="#numCols">numCols</a>(), <a href="#setNumCols">setNumCols</a>() and <a href="#numRows">numRows</a>().
<h3 class=fn>void <a name="setOffset"></a>QtTableView::setOffset ( int x, int y, bool updateScrBars = TRUE )<tt> [virtual protected]</tt>
</h3>
Scrolls the table so that <em>(x,y)</em> becomes the top-left pixel
in the view. Parameters <em>(x,y)</em> are in <em>table</em> coordinates.
<p> The interaction with <a href="#setTableFlags">Tbl_snapTo*Grid</a>
is tricky. If <em>updateScrBars</em> is TRUE, the scroll bars are
updated.
<p> <p>See also <a href="#xOffset">xOffset</a>(), <a href="#yOffset">yOffset</a>(), <a href="#setXOffset">setXOffset</a>(), <a href="#setYOffset">setYOffset</a>() and <a href="#setTopLeftCell">setTopLeftCell</a>().
<h3 class=fn>void <a name="setTableFlags"></a>QtTableView::setTableFlags ( uint f )<tt> [virtual protected]</tt>
</h3>
Sets the table flags to <em>f</em>.
<p> If a flag setting changes the appearance of the table, the table is
repainted if - and only if - <a href="#autoUpdate">autoUpdate</a>() is TRUE.
<p> The table flags are mostly single bits, though there are some multibit
flags for convenience. Here is a complete list:
<p> <dl compact>
<dt> Tbl_vScrollBar <dd> - The table has a vertical scroll bar.
<dt> Tbl_hScrollBar <dd> - The table has a horizontal scroll bar.
<dt> Tbl_autoVScrollBar <dd> - The table has a vertical scroll bar if
- and only if - the table is taller than the view.
<dt> Tbl_autoHScrollBar <dd> The table has a horizontal scroll bar if
- and only if - the table is wider than the view.
<dt> Tbl_autoScrollBars <dd> - The union of the previous two flags.
<dt> Tbl_clipCellPainting <dd> - The table uses <a href="qpainter.html#setClipRect">QPainter::setClipRect</a>() to
make sure that <a href="#paintCell">paintCell</a>() will not draw outside the cell
boundaries.
<dt> Tbl_cutCellsV <dd> - The table will never show part of a
cell at the bottom of the table; if there is not space for all of
a cell, the space is left blank.
<dt> Tbl_cutCellsH <dd> - The table will never show part of a
cell at the right side of the table; if there is not space for all of
a cell, the space is left blank.
<dt> Tbl_cutCells <dd> - The union of the previous two flags.
<dt> Tbl_scrollLastHCell <dd> - When the user scrolls horizontally,
let him/her scroll the last cell left until it is at the left
edge of the view. If this flag is not set, the user can only scroll
to the point where the last cell is completely visible.
<dt> Tbl_scrollLastVCell <dd> - When the user scrolls vertically, let
him/her scroll the last cell up until it is at the top edge of
the view. If this flag is not set, the user can only scroll to the
point where the last cell is completely visible.
<dt> Tbl_scrollLastCell <dd> - The union of the previous two flags.
<dt> Tbl_smoothHScrolling <dd> - The table scrolls as smoothly as
possible when the user scrolls horizontally. When this flag is not
set, scrolling is done one cell at a time.
<dt> Tbl_smoothVScrolling <dd> - The table scrolls as smoothly as
possible when scrolling vertically. When this flag is not set,
scrolling is done one cell at a time.
<dt> Tbl_smoothScrolling <dd> - The union of the previous two flags.
<dt> Tbl_snapToHGrid <dd> - Except when the user is actually scrolling,
the leftmost column shown snaps to the leftmost edge of the view.
<dt> Tbl_snapToVGrid <dd> - Except when the user is actually
scrolling, the top row snaps to the top edge of the view.
<dt> Tbl_snapToGrid <dd> - The union of the previous two flags.
</dl>
<p> You can specify more than one flag at a time using bitwise OR.
<p> Example:
<pre>
<a href="#setTableFlags">setTableFlags</a>( Tbl_smoothScrolling | Tbl_autoScrollBars );
</pre>
<p> <b>Warning:</b> The cutCells options (<tt>Tbl_cutCells</tt>, <tt>Tbl_cutCellsH</tt> and
Tbl_cutCellsV) may cause painting problems when scrollbars are
enabled. Do not combine cutCells and scrollbars.
<p> <p>See also <a href="#clearTableFlags">clearTableFlags</a>(), <a href="#testTableFlags">testTableFlags</a>() and <a href="#tableFlags">tableFlags</a>().
<h3 class=fn>void <a name="setTopCell"></a>QtTableView::setTopCell ( int row )<tt> [virtual protected]</tt>
</h3>
Scrolls the table so that <em>row</em> becomes the top row.
The index of the very first row is 0.
<p>See also <a href="#setYOffset">setYOffset</a>(), <a href="#setTopLeftCell">setTopLeftCell</a>() and <a href="#setLeftCell">setLeftCell</a>().
<h3 class=fn>void <a name="setTopLeftCell"></a>QtTableView::setTopLeftCell ( int row, int col )<tt> [virtual protected]</tt>
</h3>
Scrolls the table so that the cell at row <em>row</em> and colum <em>col</em> becomes the top-left cell in the view. The cell at the extreme
top left of the table is at position (0,0).
<p>See also <a href="#setLeftCell">setLeftCell</a>(), <a href="#setTopCell">setTopCell</a>() and <a href="#setOffset">setOffset</a>().
<h3 class=fn>void <a name="setXOffset"></a>QtTableView::setXOffset ( int x )<tt> [virtual protected]</tt>
</h3>
Scrolls the table so that <em>x</em> becomes the leftmost pixel in the view.
The <em>x</em> parameter is in <em>table</em> coordinates.
<p> The interaction with <a href="#setTableFlags">Tbl_snapToHGrid</a> is tricky.
<p> <p>See also <a href="#xOffset">xOffset</a>(), <a href="#setYOffset">setYOffset</a>(), <a href="#setOffset">setOffset</a>() and <a href="#setLeftCell">setLeftCell</a>().
<h3 class=fn>void <a name="setYOffset"></a>QtTableView::setYOffset ( int y )<tt> [virtual protected]</tt>
</h3>
Scrolls the table so that <em>y</em> becomes the top pixel in the view.
The <em>y</em> parameter is in <em>table</em> coordinates.
<p> The interaction with <a href="#setTableFlags">Tbl_snapToVGrid</a> is tricky.
<p> <p>See also <a href="#yOffset">yOffset</a>(), <a href="#setXOffset">setXOffset</a>(), <a href="#setOffset">setOffset</a>() and <a href="#setTopCell">setTopCell</a>().
<h3 class=fn>void <a name="setupPainter"></a>QtTableView::setupPainter ( <a href="qpainter.html">QPainter</a> * )<tt> [virtual protected]</tt>
</h3>
This virtual function is called before painting of table cells
is started. It can be reimplemented by subclasses that want to
to set up the painter in a special way and that do not want to
do so for each cell.
<h3 class=fn>uint <a name="tableFlags"></a>QtTableView::tableFlags () const<tt> [protected]</tt>
</h3>
<p> Returns the union of the table flags that are currently set.
<p> <p>See also <a href="#setTableFlags">setTableFlags</a>(), <a href="#clearTableFlags">clearTableFlags</a>() and <a href="#testTableFlags">testTableFlags</a>().
<h3 class=fn>bool <a name="testTableFlags"></a>QtTableView::testTableFlags ( uint f ) const<tt> [protected]</tt>
</h3>
<p> Returns TRUE if any of the table flags in <em>f</em> are currently set,
otherwise FALSE.
<p> <p>See also <a href="#setTableFlags">setTableFlags</a>(), <a href="#clearTableFlags">clearTableFlags</a>() and <a href="#tableFlags">tableFlags</a>().
<h3 class=fn>int <a name="topCell"></a>QtTableView::topCell () const<tt> [protected]</tt>
</h3>
Returns the index of the first row in the table that is visible in
the view. The index of the first row is 0.
<p>See also <a href="#leftCell">leftCell</a>() and <a href="#setTopCell">setTopCell</a>().
<h3 class=fn>int <a name="totalHeight"></a>QtTableView::totalHeight ()<tt> [virtual protected]</tt>
</h3>
Returns the total height of the table in pixels.
<p> This function is virtual and should be reimplemented by subclasses that
have variable cell heights and a non-trivial <a href="#cellHeight">cellHeight</a>() function, or a
large number of rows in the table.
<p> The default implementation may be slow for very tall tables.
<p> <p>See also <a href="#cellHeight">cellHeight</a>() and <a href="#totalWidth">totalWidth</a>().
<h3 class=fn>int <a name="totalWidth"></a>QtTableView::totalWidth ()<tt> [virtual protected]</tt>
</h3>
Returns the total width of the table in pixels.
<p> This function is virtual and should be reimplemented by subclasses that
have variable cell widths and a non-trivial <a href="#cellWidth">cellWidth</a>() function, or a
large number of columns in the table.
<p> The default implementation may be slow for very wide tables.
<p> <p>See also <a href="#cellWidth">cellWidth</a>() and <a href="#totalHeight">totalHeight</a>().
<h3 class=fn>void <a name="updateCell"></a>QtTableView::updateCell ( int row, int col, bool erase = TRUE )<tt> [protected]</tt>
</h3>
Repaints the cell at row <em>row</em>, column <em>col</em> if it is inside the view.
<p> If <em>erase</em> is TRUE, the relevant part of the view is cleared to the
background color/pixmap before the contents are repainted.
<p> <p>See also <a href="qwidget.html#visible-prop">visible</a>.
<h3 class=fn>void <a name="updateScrollBars"></a>QtTableView::updateScrollBars ()<tt> [protected]</tt>
</h3>
<p> Updates the scroll bars' contents and presence to match the table's
state. Generally, you should not need to call this.
<p> <p>See also <a href="#setTableFlags">setTableFlags</a>().
<h3 class=fn>void <a name="updateTableSize"></a>QtTableView::updateTableSize ()<tt> [protected]</tt>
</h3>
Updates the scroll bars and internal state.
<p> Call this function when the table view's total size is changed;
typically because the result of <a href="#cellHeight">cellHeight</a>() or <a href="#cellWidth">cellWidth</a>() have changed.
<p> This function does not repaint the widget.
<h3 class=fn><a href="qscrollbar.html">QScrollBar</a> * <a name="verticalScrollBar"></a>QtTableView::verticalScrollBar () const<tt> [protected]</tt>
</h3>
Returns a pointer to the vertical scroll bar mainly so you can
<a href="qobject.html#connect">connect</a>() to its signals. Note that the scroll bar works in pixel
values; use <a href="#findRow">findRow</a>() to translate to cell numbers.
<h3 class=fn>int <a name="viewHeight"></a>QtTableView::viewHeight () const<tt> [protected]</tt>
</h3>
Returns the height of the table view, as such, in <em>view</em>
coordinates. This does not include any header, scroll bar or frame,
but it does include background pixels below the table data.
<p> <p>See also <a href="#minViewY">minViewY</a>(), <a href="#maxViewY">maxViewY</a>(), <a href="#viewWidth">viewWidth</a>(), <a href="qframe.html#contentsRect-prop">contentsRect</a> and <a href="#viewRect">viewRect</a>().
<h3 class=fn><a href="qrect.html">QRect</a> <a name="viewRect"></a>QtTableView::viewRect () const<tt> [protected]</tt>
</h3>
Returns the rectangle that is the actual table, excluding any
frame, in <em>widget</em> coordinates.
<h3 class=fn>int <a name="viewWidth"></a>QtTableView::viewWidth () const<tt> [protected]</tt>
</h3>
Returns the width of the table view, as such, in <em>view</em>
coordinates. This does not include any header, scroll bar or frame,
but it does include background pixels to the right of the table data.
<p> <p>See also <a href="#minViewX">minViewX</a>(), <a href="#maxViewX">maxViewX</a>(), <a href="#viewHeight">viewHeight</a>(), <a href="qframe.html#contentsRect-prop">contentsRect</a> and <a href="#viewRect">viewRect</a>().
<h3 class=fn>int <a name="xOffset"></a>QtTableView::xOffset () const<tt> [protected]</tt>
</h3>
<p> Returns the x coordinate in <em>table</em> coordinates of the pixel that is
currently on the left edge of the view.
<p> <p>See also <a href="#setXOffset">setXOffset</a>(), <a href="#yOffset">yOffset</a>() and <a href="#leftCell">leftCell</a>().
<h3 class=fn>int <a name="yOffset"></a>QtTableView::yOffset () const<tt> [protected]</tt>
</h3>
<p> Returns the y coordinate in <em>table</em> coordinates of the pixel that is
currently on the top edge of the view.
<p> <p>See also <a href="#setYOffset">setYOffset</a>(), <a href="#xOffset">xOffset</a>() and <a href="#topCell">topCell</a>().
<!-- eof -->
<hr><p>
This file is part of the <a href="index.html">Qt toolkit</a>.
Copyright © 1995-2001
<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 © 2001
<a href="http://www.trolltech.com">Trolltech</a><td><a href="http://www.trolltech.com/trademarks.html">Trademarks</a>
<td align=right><div align=right>Qt version 3.0.2</div>
</table></div></address></body>
</html>
distrib
>
Mandriva
>
8.2
>
i586
>
media
>
contrib
>
by-pkgid
>
112b0974ad288f6cd55bf971ee6026a9
>
files
>
1988
