File indexing completed on 2024-04-14 03:40:45

 /*
     KmPlot - a math. function plotter for the KDE-Desktop
 
     SPDX-FileCopyrightText: 2004 Fredrik Edemar <f_edemar@linux.se>
     SPDX-FileCopyrightText: 2006 David Saxton <david@bluehaze.org>
 
     This file is part of the KDE Project.
     KmPlot is part of the KDE-EDU Project.
 
     SPDX-License-Identifier: GPL-2.0-or-later
 
 */
 
 #ifndef KCONSTANTEDITOR_H
 #define KCONSTANTEDITOR_H
 
 #include <QDialog>
 #include <QValidator>
 
 class Constant;
 class ConstantValidator;
 class ConstantsEditorWidget;
 class QTreeWidgetItem;
 
 /**
  * Handles all the constants.
  * @author Fredrik Edemar, David Saxton
  */
 class KConstantEditor : public QDialog
 {
     Q_OBJECT
 public:
     explicit KConstantEditor(QWidget *parent = nullptr);
     ~KConstantEditor();
 
 public slots:
     /// actions for the buttons
     void cmdNew_clicked();
     void cmdDelete_clicked();
 
     /// called when the user changes the text in the Constant name edit box
     void constantNameEdited(const QString &newName);
 
     /// actions for the visible constant list
     void selectedConstantChanged(QTreeWidgetItem *current);
 
     /// saves the value in the edit boxes of the constant currently being edited
     void saveCurrentConstant();
 
     /// updates whether or not the "value is invalid" label is shown, (and returns the validity of the current value)
     bool checkValueValid();
 
     /**
      * Updates the list of constants.
      */
     void updateConstantsList();
 
 protected slots:
     /**
      * Called when an item is clicked on. This might mean that the check state
      * has changed, so will save the constants list.
      */
     void itemClicked();
 
     void dialogFinished();
 
 protected:
     /**
      * Initializes the values, checkstates, tooltips, etc.
      */
     void init(QTreeWidgetItem *item, const QString &name, const Constant &constant);
 
 private:
     QString m_previousConstantName;
     ConstantValidator *m_constantValidator;
     ConstantsEditorWidget *m_widget;
 };
 
 /**
 Validates the constant; ensuring that Roman letters are alphabetical and only
 proper constant letters are used.
 @author David Saxton
 */
 class ConstantValidator : public QValidator
 {
 public:
     explicit ConstantValidator(KConstantEditor *parent);
 
     State validate(QString &input, int &pos) const Q_DECL_OVERRIDE;
 
     bool isValid(const QString &name) const;
 
     /**
      * There cannot be more than one constant with the same name. So
      * this validator checks that the input does not conflict with any
      * existing names - except, of course, the name of the constant being
      * edited.
      */
     void setWorkingName(const QString &name);
 
 protected:
     /// @see setWorkingName
     QString m_workingName;
 };
 
 #endif