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| author | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2011-07-10 15:24:15 -0500 |
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| committer | Timothy Pearson <kb9vqf@pearsoncomputing.net> | 2011-07-10 15:24:15 -0500 |
| commit | bd0f3345a938b35ce6a12f6150373b0955b8dd12 (patch) | |
| tree | 7a520322212d48ebcb9fbe1087e7fca28b76185c /doc/html/chart-canvasview-cpp.html | |
| download | qt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.tar.gz qt3-bd0f3345a938b35ce6a12f6150373b0955b8dd12.zip | |
Add Qt3 development HEAD version
Diffstat (limited to 'doc/html/chart-canvasview-cpp.html')
| -rw-r--r-- | doc/html/chart-canvasview-cpp.html | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/doc/html/chart-canvasview-cpp.html b/doc/html/chart-canvasview-cpp.html new file mode 100644 index 0000000..0f7b9ab --- /dev/null +++ b/doc/html/chart-canvasview-cpp.html @@ -0,0 +1,97 @@ +<!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/doc/tutorial2.doc:7 --> +<html> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> +<title>chart/canvasview.cpp Example File</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>chart/canvasview.cpp Example File</h1> + + +<pre>#include "canvasview.h" +#include "chartform.h" + +#include <<a href="qcursor-h.html">qcursor.h</a>> +#include <<a href="qpoint-h.html">qpoint.h</a>> +#include <<a href="qpopupmenu-h.html">qpopupmenu.h</a>> +#include <<a href="qstatusbar-h.html">qstatusbar.h</a>> + + +void CanvasView::<a href="qscrollview.html#contentsContextMenuEvent">contentsContextMenuEvent</a>( <a href="qcontextmenuevent.html">QContextMenuEvent</a> * ) +{ + ((ChartForm*)<a href="qobject.html#parent">parent</a>())->optionsMenu->exec( QCursor::<a href="qcursor.html#pos">pos</a>() ); +} + + +void CanvasView::<a href="qscrollview.html#viewportResizeEvent">viewportResizeEvent</a>( <a href="qresizeevent.html">QResizeEvent</a> *e ) +{ + <a href="qcanvasview.html#canvas">canvas</a>()->resize( e-><a href="qresizeevent.html#size">size</a>().width(), e-><a href="qresizeevent.html#size">size</a>().height() ); + ((ChartForm*)<a href="qobject.html#parent">parent</a>())->drawElements(); +} + + +void CanvasView::<a href="qscrollview.html#contentsMousePressEvent">contentsMousePressEvent</a>( <a href="qmouseevent.html">QMouseEvent</a> *e ) +{ + <a href="qcanvasitemlist.html">QCanvasItemList</a> list = <a href="qcanvasview.html#canvas">canvas</a>()->collisions( e-><a href="qmouseevent.html#pos">pos</a>() ); + for ( QCanvasItemList::iterator it = list.<a href="qvaluelist.html#begin">begin</a>(); it != list.<a href="qvaluelist.html#end">end</a>(); ++it ) + if ( (*it)->rtti() == CanvasText::CANVAS_TEXT ) { + m_movingItem = *it; + m_pos = e-><a href="qmouseevent.html#pos">pos</a>(); + return; + } + m_movingItem = 0; +} + + +void CanvasView::<a href="qscrollview.html#contentsMouseMoveEvent">contentsMouseMoveEvent</a>( <a href="qmouseevent.html">QMouseEvent</a> *e ) +{ + if ( m_movingItem ) { + <a href="qpoint.html">QPoint</a> offset = e-><a href="qmouseevent.html#pos">pos</a>() - m_pos; + m_movingItem->moveBy( offset.<a href="qpoint.html#x">x</a>(), offset.<a href="qpoint.html#y">y</a>() ); + m_pos = e-><a href="qmouseevent.html#pos">pos</a>(); + ChartForm *form = (ChartForm*)<a href="qobject.html#parent">parent</a>(); + form->setChanged( TRUE ); + int chartType = form->chartType(); + CanvasText *item = (CanvasText*)m_movingItem; + int i = item->index(); + + (*m_elements)[i].setProX( chartType, item->x() / canvas()->width() ); + (*m_elements)[i].setProY( chartType, item->y() / canvas()->height() ); + + <a href="qcanvasview.html#canvas">canvas</a>()->update(); + } +} + + +</pre><!-- eof --> +<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>Qt 3.3.8</div> +</table></div></address></body> +</html> |