src/components/colorpalette/private/luminancepicker.h

   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Jorge Cuadrado                                  *
   3  *   kuadrosxx@gmail.com                                                    *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20
  21
  22 #ifndef COMPONENTSLUMINACEPICKER_H
  23 #define COMPONENTSLUMINACEPICKER_H
  24
  25
  26 #include <QPaintEvent>
  27 #include <QPixmap>
  28 #include <QMouseEvent>
  29 #include <QWidget>
  30
  31 namespace Component {
  32
  33 class LuminancePicker : public QWidget
  34 {
  35         Q_OBJECT
  36         public:
  37                 LuminancePicker(QWidget* parent=0);
  38                 ~LuminancePicker();
  39                 int value();
  40
  41         public slots:
  42                 void setCol(int h, int s, int v);
  43                 void setCol(int h, int s);
  44                 void setVal(int v);
  45
  46         signals:
  47                 void newHsv(int h, int s, int v);
  48
  49         protected:
  50                 void paintEvent(QPaintEvent*);
  51                 void mouseMoveEvent(QMouseEvent *);
  52                 void mousePressEvent(QMouseEvent *);
  53
  54         private:
  55                 enum { foff = 3, coff = 4 }; //frame and contents offset
  56
  57                 struct Private;
  58                 Private *const d;
  59
  60                 int y2val(int y);
  61                 int val2y(int val);
  62
  63 };
  64 }
  65
  66 #endif
  67