| [190] | 1 | <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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| 2 | <!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/doc/tutorial2.doc:8 -->
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| 3 | <html>
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| 4 | <head>
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| 5 | <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
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| 6 | <title>chart/chartform.h Example File</title>
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| 7 | <style type="text/css"><!--
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| 8 | fn { margin-left: 1cm; text-indent: -1cm; }
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| 9 | a:link { color: #004faf; text-decoration: none }
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| 10 | a:visited { color: #672967; text-decoration: none }
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| 11 | body { background: #ffffff; color: black; }
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| 12 | --></style>
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| 13 | </head>
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| 14 | <body>
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| 15 |
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| 16 | <table border="0" cellpadding="0" cellspacing="0" width="100%">
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| 17 | <tr bgcolor="#E5E5E5">
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| 18 | <td valign=center>
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| 19 | <a href="index.html">
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| 20 | <font color="#004faf">Home</font></a>
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| 21 | | <a href="classes.html">
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| 22 | <font color="#004faf">All Classes</font></a>
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| 23 | | <a href="mainclasses.html">
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| 24 | <font color="#004faf">Main Classes</font></a>
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| 25 | | <a href="annotated.html">
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| 26 | <font color="#004faf">Annotated</font></a>
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| 27 | | <a href="groups.html">
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| 28 | <font color="#004faf">Grouped Classes</font></a>
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| 29 | | <a href="functions.html">
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| 30 | <font color="#004faf">Functions</font></a>
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| 31 | </td>
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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>chart/chartform.h Example File</h1>
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| 33 |
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| 34 |
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| 35 | <pre>#ifndef CHARTFORM_H
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| 36 | #define CHARTFORM_H
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| 37 |
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| 38 | #include "element.h"
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| 39 |
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| 40 | #include <<a href="qmainwindow-h.html">qmainwindow.h</a>>
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| 41 | #include <<a href="qstringlist-h.html">qstringlist.h</a>>
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| 42 |
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| 43 |
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| 44 | class CanvasView;
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| 45 |
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| 46 | class QAction;
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| 47 | class QCanvas;
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| 48 | class QFont;
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| 49 | class QPrinter;
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| 50 | class QString;
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| 51 |
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| 52 |
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| 53 | class ChartForm: public <a href="qmainwindow.html">QMainWindow</a>
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| 54 | {
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| 55 | Q_OBJECT
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| 56 | public:
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| 57 | enum { MAX_ELEMENTS = 100 };
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| 58 | enum { MAX_RECENTFILES = 9 }; // Must not exceed 9
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| 59 | enum ChartType { PIE, VERTICAL_BAR, HORIZONTAL_BAR };
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| 60 | enum AddValuesType { NO, YES, AS_PERCENTAGE };
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| 61 |
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| 62 | ChartForm( const <a href="qstring.html">QString</a>& filename );
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| 63 | ~ChartForm();
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| 64 |
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| 65 | int chartType() { return m_chartType; }
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| 66 | void setChanged( bool changed = TRUE ) { m_changed = changed; }
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| 67 | void drawElements();
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| 68 |
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| 69 | <a href="qpopupmenu.html">QPopupMenu</a> *optionsMenu; // Why public? See canvasview.cpp
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| 70 |
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| 71 | protected:
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| 72 | virtual void closeEvent( <a href="qcloseevent.html">QCloseEvent</a> * );
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| 73 |
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| 74 | private slots:
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| 75 | void fileNew();
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| 76 | void fileOpen();
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| 77 | void fileOpenRecent( int index );
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| 78 | void fileSave();
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| 79 | void fileSaveAs();
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| 80 | void fileSaveAsPixmap();
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| 81 | void filePrint();
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| 82 | void fileQuit();
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| 83 | void optionsSetData();
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| 84 | void updateChartType( <a href="qaction.html">QAction</a> *action );
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| 85 | void optionsSetFont();
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| 86 | void optionsSetOptions();
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| 87 | void helpHelp();
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| 88 | void helpAbout();
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| 89 | void helpAboutQt();
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| 90 | void saveOptions();
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| 91 |
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| 92 | private:
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| 93 | void init();
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| 94 | void load( const <a href="qstring.html">QString</a>& filename );
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| 95 | bool okToClear();
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| 96 | void drawPieChart( const double scales[], double total, int count );
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| 97 | void drawVerticalBarChart( const double scales[], double total, int count );
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| 98 | void drawHorizontalBarChart( const double scales[], double total, int count );
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| 99 |
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| 100 | <a href="qstring.html">QString</a> valueLabel( const <a href="qstring.html">QString</a>& label, double value, double total );
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| 101 | void updateRecentFiles( const <a href="qstring.html">QString</a>& filename );
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| 102 | void updateRecentFilesMenu();
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| 103 | void setChartType( ChartType chartType );
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| 104 |
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| 105 | <a href="qpopupmenu.html">QPopupMenu</a> *fileMenu;
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| 106 | <a href="qaction.html">QAction</a> *optionsPieChartAction;
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| 107 | <a href="qaction.html">QAction</a> *optionsHorizontalBarChartAction;
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| 108 | <a href="qaction.html">QAction</a> *optionsVerticalBarChartAction;
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| 109 |
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| 110 |
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| 111 | <a href="qstring.html">QString</a> m_filename;
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| 112 | <a href="qstringlist.html">QStringList</a> m_recentFiles;
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| 113 | <a href="qcanvas.html">QCanvas</a> *m_canvas;
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| 114 | CanvasView *m_canvasView;
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| 115 | bool m_changed;
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| 116 | ElementVector m_elements;
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| 117 | <a href="qprinter.html">QPrinter</a> *m_printer;
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| 118 | ChartType m_chartType;
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| 119 | AddValuesType m_addValues;
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| 120 | int m_decimalPlaces;
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| 121 | <a href="qfont.html">QFont</a> m_font;
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| 122 | };
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| 123 |
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| 124 | #endif
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| 125 | </pre><!-- eof -->
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| 126 | <p><address><hr><div align=center>
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| 127 | <table width=100% cellspacing=0 border=0><tr>
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| 128 | <td>Copyright © 2007
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| 129 | <a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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| 130 | <td align=right><div align=right>Qt 3.3.8</div>
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| 131 | </table></div></address></body>
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| 132 | </html>
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