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1 /* -*- c-basic-offset: 4 indent-tabs-mode: nil -*- vi:set ts=8 sts=4 sw=4: */
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2
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3 /*
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4 Sonic Visualiser
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5 An audio file viewer and annotation editor.
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6 Centre for Digital Music, Queen Mary, University of London.
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7
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8 This program is free software; you can redistribute it and/or
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9 modify it under the terms of the GNU General Public License as
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10 published by the Free Software Foundation; either version 2 of the
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11 License, or (at your option) any later version. See the file
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12 COPYING included with this distribution for more information.
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13 */
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14
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15 /*
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16 This is a modified version of a source file from the KDE
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17 libraries. Copyright (c) 1998-2004 Jörg Habenicht, Richard J
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18 Moore and others, distributed under the GNU Lesser General Public
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19 License.
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20
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21 Ported to Qt4 by Chris Cannam.
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22
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23 The original KDE widget comes in round and rectangular and flat,
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24 raised, and sunken variants. This version retains only the round
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25 sunken variant. This version also implements a simple button API.
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26 */
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27
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28 #ifndef SV_LED_BUTTON_H
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29 #define SV_LED_BUTTON_H
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30
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31 #include <QWidget>
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32 #include "base/Debug.h"
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33
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34 class QColor;
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35
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36 class LEDButton : public QWidget
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37 {
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38 Q_OBJECT
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39 Q_PROPERTY(QColor color READ color WRITE setColor)
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40 Q_PROPERTY(int darkFactor READ darkFactor WRITE setDarkFactor)
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41
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42 public:
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43 LEDButton(QWidget *parent = 0);
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44 LEDButton(const QColor &col, QWidget *parent = 0);
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45 LEDButton(const QColor& col, bool state, QWidget *parent = 0);
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46 ~LEDButton();
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47
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48 bool state() const;
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49 QColor color() const;
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50 int darkFactor() const;
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51
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52 virtual QSize sizeHint() const;
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53 virtual QSize minimumSizeHint() const;
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54
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55 signals:
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56 void stateChanged(bool);
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57
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58 void mouseEntered();
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59 void mouseLeft();
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60
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61 public slots:
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62 void toggle();
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63 void on();
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64 void off();
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65
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66 void setState(bool);
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67 void toggleState();
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68 void setColor(const QColor& color);
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69 void setDarkFactor(int darkfactor);
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70
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71 protected:
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72 void paintEvent(QPaintEvent *);
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73 void mousePressEvent(QMouseEvent *);
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74 void enterEvent(QEvent *);
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75 void leaveEvent(QEvent *);
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76
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77 bool led_state;
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78 QColor led_color;
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79
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80 class LEDButtonPrivate;
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81 LEDButtonPrivate *d;
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82 };
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83
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84 #endif
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