#ifndef KCHART_DATA_EDITOR_H #define KCHART_DATA_EDITOR_H #include <tqstrlist.h> #include <tqspinbox.h> #include <kdialogbase.h> #include "kchart_part.h" class TQLabel; class TQSpinBox; class TQCheckBox; namespace KChart { class KChartParams; // This class inherits TQSpinBox, but fixes a problem with it. // Consider the following case: // // 1. The SpinBox for rows has the value 4. // 2. The user enters the number 2 into it. // 3. The user presses the little up arrow in the spinbox. // 4. valueChanged(2) is emitted and 2 rows are removed. // 5. valueChanged(3) is emitted and 1 row is added. // // Now (at least) one row is removed that was never meant to be // removed and data is lost. This class fixes that by changing the // semantics. So instead of the behaviour of above, the // valueChanged(2) is never emitted and instead of valueChanged(3), // valueChanged(5) is emitted. // class kchartDataSpinBox : public TQSpinBox { Q_OBJECT public: kchartDataSpinBox(TQWidget *); ~kchartDataSpinBox(); public slots: // The user pressed the Up-button void stepUp(); // The user pressed the Down-button void stepDown(); protected: void interpretText(){;}; bool eventFilter( TQObject *obj, TQEvent *ev ); signals: // the value is changed (stepUp/stepDown was called or the focus is lost) void valueChangedSpecial(int); private: // True if we should ignore the next value change (see above). bool m_ignore; }; // ---------------------------------------------------------------- // The reason for having a special Table class is to implement // keyboard navigation in editing mode. // class kchartDataTable : public TQTable { Q_OBJECT public: kchartDataTable(TQWidget *); ~kchartDataTable(); protected: // handles keyboard navigation bool eventFilter( TQObject *obj, TQEvent *ev ); }; // ---------------------------------------------------------------- class kchartDataEditor : public KDialogBase { Q_OBJECT public: kchartDataEditor(TQWidget* parent = 0); void setData(KChartParams *params, KDChartTableData *dat); void getData(KChartParams *params, KDChartTableData *dat); void setRowLabels(const TQStringList &rowLabels); void getRowLabels(TQStringList &rowLabels); void setColLabels(const TQStringList &colLabels); void getColLabels(TQStringList &colLabels); bool modified() const { return m_modified; } protected: /** * Returns the number of rows used as headers (ie. containing labels for the X axis or a series name, * depending on the orientation of the data) */ int headerRows(); /** * Returns the number of columns used as headers (ie. containing labels for the X axis or a series name, * depending on the orientation of the data) */ int headerCols(); /** * Updates the table widget's vertical header to match the row labels specified in the leftmost column of * each row */ void updateRowHeaders(); /** * Updates the table widget's horizontal header to match the column labels specified in the top row of each * column */ void updateColHeaders(); private: void addDocs(); signals: void applyClicked(kchartDataEditor *ed); private slots: void slotApply(); /** Removes the row which the current cell belongs to */ void removeCurrentRow(); /** Removes the column which the current cell belongs to */ void removeCurrentColumn(); /** Inserts a new row below the current cell */ void insertRow(); /** Inserts a new column to the right of the current cell */ void insertColumn(); void setRows(int rows); void setCols(int cols); // Called when something changes in the table. void tableChanged(int row, int col); // Called when the current cell is changed void currentChanged(int row, int col); private: // Widgets in the editor kchartDataTable *m_table; TQPushButton *m_insertRowButton; TQPushButton *m_insertColButton; TQPushButton *m_removeRowButton; TQPushButton *m_removeColButton; TQLabel *m_rowsLA; kchartDataSpinBox *m_rowsSB; TQLabel *m_colsLA; kchartDataSpinBox *m_colsSB; TQCheckBox *m_firstRowAsLabel; TQCheckBox *m_firstColAsLabel; // This member is set to true if the user shrinks the data table, // and confirms this by clicking OK in a warning dialog. bool m_userWantsToShrink; bool m_modified; }; } //KChart namespace #endif