doc/html/chart-chartform-h.html


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132

<!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:8 -->
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>chart/chartform.h 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&nbsp;Classes</font></a>
 | <a href="mainclasses.html">
<font color="#004faf">Main&nbsp;Classes</font></a>
 | <a href="annotated.html">
<font color="#004faf">Annotated</font></a>
 | <a href="groups.html">
<font color="#004faf">Grouped&nbsp;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.h Example File</h1>

 
<pre>#ifndef CHARTFORM_H
#define CHARTFORM_H

#include "element.h"

#include &lt;<a href="qmainwindow-h.html">qmainwindow.h</a>&gt;
#include &lt;<a href="qstringlist-h.html">qstringlist.h</a>&gt;


class CanvasView;

class QAction;
class QCanvas;
class QFont;
class QPrinter;
class QString;


class ChartForm: public <a href="qmainwindow.html">QMainWindow</a>
{
    Q_OBJECT
public:
    enum { MAX_ELEMENTS = 100 };
    enum { MAX_RECENTFILES = 9 }; // Must not exceed 9
    enum ChartType { PIE, VERTICAL_BAR, HORIZONTAL_BAR };
    enum AddValuesType { NO, YES, AS_PERCENTAGE };

    ChartForm( const <a href="qstring.html">QString</a>&amp; filename );
    ~ChartForm();

    int chartType() { return m_chartType; }
    void setChanged( bool changed = TRUE ) { m_changed = changed; }
    void drawElements();

    <a href="qpopupmenu.html">QPopupMenu</a> *optionsMenu; // Why public? See canvasview.cpp

protected:
    virtual void closeEvent( <a href="qcloseevent.html">QCloseEvent</a> * );

private slots:
    void fileNew();
    void fileOpen();
    void fileOpenRecent( int index );
    void fileSave();
    void fileSaveAs();
    void fileSaveAsPixmap();
    void filePrint();
    void fileQuit();
    void optionsSetData();
    void updateChartType( <a href="qaction.html">QAction</a> *action );
    void optionsSetFont();
    void optionsSetOptions();
    void helpHelp();
    void helpAbout();
    void helpAboutQt();
    void saveOptions();

private:
    void init();
    void load( const <a href="qstring.html">QString</a>&amp; filename );
    bool okToClear();
    void drawPieChart( const double scales[], double total, int count );
    void drawVerticalBarChart( const double scales[], double total, int count );
    void drawHorizontalBarChart( const double scales[], double total, int count );

    <a href="qstring.html">QString</a> valueLabel( const <a href="qstring.html">QString</a>&amp; label, double value, double total );
    void updateRecentFiles( const <a href="qstring.html">QString</a>&amp; filename );
    void updateRecentFilesMenu();
    void setChartType( ChartType chartType );

    <a href="qpopupmenu.html">QPopupMenu</a> *fileMenu;
    <a href="qaction.html">QAction</a> *optionsPieChartAction;
    <a href="qaction.html">QAction</a> *optionsHorizontalBarChartAction;
    <a href="qaction.html">QAction</a> *optionsVerticalBarChartAction;


    <a href="qstring.html">QString</a> m_filename;
    <a href="qstringlist.html">QStringList</a> m_recentFiles;
    <a href="qcanvas.html">QCanvas</a> *m_canvas;
    CanvasView *m_canvasView;
    bool m_changed;
    ElementVector m_elements;
    <a href="qprinter.html">QPrinter</a> *m_printer;
    ChartType m_chartType;
    AddValuesType m_addValues;
    int m_decimalPlaces;
    <a href="qfont.html">QFont</a> m_font;
};

#endif
</pre><!-- eof -->
<p><address><hr><div align=center>
<table width=100% cellspacing=0 border=0><tr>
<td>Copyright &copy; 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>