src/settingssheet.h

   1 //
   2 // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
   3 // +                                                                      +
   4 // + This file is part of enGrid.                                         +
   5 // +                                                                      +
   6 // + Copyright 2008,2009 Oliver Gloth                                     +
   7 // +                                                                      +
   8 // + enGrid is free software: you can redistribute it and/or modify       +
   9 // + it under the terms of the GNU General Public License as published by +
  10 // + the Free Software Foundation, either version 3 of the License, or    +
  11 // + (at your option) any later version.                                  +
  12 // +                                                                      +
  13 // + enGrid is distributed in the hope that it will be useful,            +
  14 // + but WITHOUT ANY WARRANTY; without even the implied warranty of       +
  15 // + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the        +
  16 // + GNU General Public License for more details.                         +
  17 // +                                                                      +
  18 // + You should have received a copy of the GNU General Public License    +
  19 // + along with enGrid. If not, see <http://www.gnu.org/licenses/>.       +
  20 // +                                                                      +
  21 // ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  22 //
  23 #ifndef SETTINGSSHEET_H
  24 #define SETTINGSSHEET_H
  25
  26 #include <QTableWidget>
  27 #include <QTableWidgetItem>
  28
  29 class Cell : public QTableWidgetItem
  30 {
  31 public:
  32   Cell();
  33
  34   QTableWidgetItem *clone() const;
  35   void setData(int role, const QVariant &value);
  36   QVariant data(int role) const;
  37   void setFormula(const QString &formula);
  38   QString formula() const;
  39   void setDirty();
  40
  41 private:
  42   QVariant value() const;
  43   QVariant evalExpression(const QString &str, int &pos) const;
  44   QVariant evalTerm(const QString &str, int &pos) const;
  45   QVariant evalFactor(const QString &str, int &pos) const;
  46
  47   mutable QVariant cachedValue;
  48   mutable bool cacheIsDirty;
  49 };
  50
  51 class SettingsSheet : public QTableWidget
  52 {
  53
  54   Q_OBJECT
  55
  56 public:
  57
  58   SettingsSheet(QWidget *parent = 0);
  59
  60   ~SettingsSheet();
  61
  62   bool readFile(int verbose = 1);
  63   void setFormula(int row, int column, const QString &formula);
  64   QString formula(int row, int column) const;
  65   Cell* cell(int row, int column) const;
  66
  67 public slots:
  68
  69   void writeFile();
  70
  71 };
  72
  73 #endif