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diff --git a/doc/html/chart-chartform_files-cpp.html b/doc/html/chart-chartform_files-cpp.html new file mode 100644 index 0000000..01dc4cc --- /dev/null +++ b/doc/html/chart-chartform_files-cpp.html @@ -0,0 +1,155 @@ +<!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:11 --> +<html> +<head> +<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> +<title>chart/chartform_files.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/chartform_files.cpp Example File</h1> + + +<pre>#include "canvasview.h" +#include "chartform.h" + +#include <<a href="qfile-h.html">qfile.h</a>> +#include <<a href="qfiledialog-h.html">qfiledialog.h</a>> +#include <<a href="qpainter-h.html">qpainter.h</a>> +#include <<a href="qprinter-h.html">qprinter.h</a>> +#include <<a href="qstatusbar-h.html">qstatusbar.h</a>> + + +void <a name="f172"></a>ChartForm::load( const <a href="qstring.html">QString</a>& filename ) +{ + <a href="qfile.html">QFile</a> file( filename ); + if ( !file.<a href="qfile.html#open">open</a>( IO_ReadOnly ) ) { + <a href="qmainwindow.html#statusBar">statusBar</a>()->message( QString( "Failed to load \'%1\'" ). + arg( filename ), 2000 ); + return; + } + + init(); // Make sure we have colours + m_filename = filename; + <a href="qtextstream.html">QTextStream</a> ts( &file ); + Element element; + int errors = 0; + int i = 0; + while ( !ts.<a href="qtextstream.html#eof">eof</a>() ) { + ts >> element; + if ( element.isValid() ) + m_elements[i++] = element; + else + errors++; + if ( i == MAX_ELEMENTS ) { + <a href="qmainwindow.html#statusBar">statusBar</a>()->message( + QString( "Read maximum number of elements (%1)" + " discarding others" ).arg( i ), 2000 ); + break; + } + } + + file.<a href="qfile.html#close">close</a>(); + + <a href="qstring.html">QString</a> bad = ""; + if ( errors ) { + bad = QString( "; skipped " ) + QString::number( errors ) + " bad record"; + if ( errors > 1 ) + bad += "s"; + } + <a href="qmainwindow.html#statusBar">statusBar</a>()->message( QString( "Read %1 values from \'%2\'%3" ). + arg( i ).arg( filename ).arg( bad ), 3000 ); + + <a href="qwidget.html#setCaption">setCaption</a>( QString( "Chart -- %1" ).arg( filename ) ); + updateRecentFiles( filename ); + + drawElements(); + m_changed = FALSE; +} + + +void <a name="f173"></a>ChartForm::fileSave() +{ + if ( m_filename.isEmpty() ) { + fileSaveAs(); + return; + } + + <a href="qfile.html">QFile</a> file( m_filename ); + if ( !file.<a href="qfile.html#open">open</a>( IO_WriteOnly ) ) { + <a href="qmainwindow.html#statusBar">statusBar</a>()->message( QString( "Failed to save \'%1\'" ). + arg( m_filename ), 2000 ); + return; + } + <a href="qtextstream.html">QTextStream</a> ts( &file ); + for ( int i = 0; i < MAX_ELEMENTS; ++i ) + if ( m_elements[i].isValid() ) + ts << m_elements[i]; + + file.<a href="qfile.html#close">close</a>(); + + <a href="qwidget.html#setCaption">setCaption</a>( QString( "Chart -- %1" ).arg( m_filename ) ); + <a href="qmainwindow.html#statusBar">statusBar</a>()->message( QString( "Saved \'%1\'" ).arg( m_filename ), 2000 ); + m_changed = FALSE; +} + + +void <a name="f174"></a>ChartForm::fileSaveAsPixmap() +{ + <a href="qstring.html">QString</a> filename = QFileDialog::<a href="qfiledialog.html#getSaveFileName">getSaveFileName</a>( + QString::null, "Images (*.png *.xpm *.jpg)", + this, "file save as bitmap", + "Chart -- File Save As Bitmap" ); + if ( QPixmap::<a href="qpixmap.html#grabWidget">grabWidget</a>( m_canvasView ). + save( filename, + filename.<a href="qstring.html#mid">mid</a>( filename.<a href="qstring.html#findRev">findRev</a>( '.' ) + 1 ).upper() ) ) + <a href="qmainwindow.html#statusBar">statusBar</a>()->message( QString( "Wrote \'%1\'" ).arg( filename ), 2000 ); + else + <a href="qmainwindow.html#statusBar">statusBar</a>()->message( QString( "Failed to write \'%1\'" ). + arg( filename ), 2000 ); +} + +void <a name="f175"></a>ChartForm::filePrint() +{ + if ( !m_printer ) + m_printer = new <a href="qprinter.html">QPrinter</a>; + if ( m_printer-><a href="qprinter.html#setup">setup</a>() ) { + <a href="qpainter.html">QPainter</a> painter( m_printer ); + m_canvas->drawArea( QRect( 0, 0, m_canvas->width(), m_canvas->height() ), + &painter, FALSE ); + if ( !m_printer-><a href="qprinter.html#outputFileName">outputFileName</a>().isEmpty() ) + <a href="qmainwindow.html#statusBar">statusBar</a>()->message( QString( "Printed \'%1\'" ). + arg( m_printer-><a href="qprinter.html#outputFileName">outputFileName</a>() ), 2000 ); + } +} + +</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> |