doc/html/chart-chartform-h.html


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


class CanvasView;

class TQAction;
class TQCanvas;
class TQFont;
class TQPrinter;
class TQString;


class ChartForm: public <a href="tqmainwindow.html">TQMainWindow</a>
{
    TQ_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="tqstring.html">TQString</a>&amp; filename );
    ~ChartForm();

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

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

protected:
    virtual void closeEvent( <a href="qcloseevent.html">TQCloseEvent</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="tqaction.html">TQAction</a> *action );
    void optionsSetFont();
    void optionsSetOptions();
    void helpHelp();
    void helpAbout();
    void helpAboutTQt();
    void saveOptions();

private:
    void init();
    void load( const <a href="tqstring.html">TQString</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="tqstring.html">TQString</a> valueLabel( const <a href="tqstring.html">TQString</a>&amp; label, double value, double total );
    void updateRecentFiles( const <a href="tqstring.html">TQString</a>&amp; filename );
    void updateRecentFilesMenu();
    void setChartType( ChartType chartType );

    <a href="tqpopupmenu.html">TQPopupMenu</a> *fileMenu;
    <a href="tqaction.html">TQAction</a> *optionsPieChartAction;
    <a href="tqaction.html">TQAction</a> *optionsHorizontalBarChartAction;
    <a href="tqaction.html">TQAction</a> *optionsVerticalBarChartAction;


    <a href="tqstring.html">TQString</a> m_filename;
    <a href="tqstringlist.html">TQStringList</a> m_recentFiles;
    <a href="tqcanvas.html">TQCanvas</a> *m_canvas;
    CanvasView *m_canvasView;
    bool m_changed;
    ElementVector m_elements;
    <a href="ntqprinter.html">TQPrinter</a> *m_printer;
    ChartType m_chartType;
    AddValuesType m_addValues;
    int m_decimalPlaces;
    <a href="tqfont.html">TQFont</a> m_font;
};

#endif
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