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1 /* -*- c-basic-offset: 4 -*- vi:set ts=8 sts=4 sw=4: */
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2
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3 /*
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4 A waveform viewer and audio annotation editor.
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5 Chris Cannam, Queen Mary University of London, 2005-2006
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6
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7 This is experimental software. Not for distribution.
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8 */
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9
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10 /*
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11 This is a modified version of a source file from the KDE
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12 libraries. Copyright (c) 1998-2004 Jörg Habenicht, Richard J
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13 Moore and others, distributed under the GNU Lesser General Public
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14 License.
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15
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16 Ported to Qt4 by Chris Cannam.
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17
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18 The original KDE widget comes in round and rectangular and flat,
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19 raised, and sunken variants. This version retains only the round
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20 sunken variant. This version also implements a simple button API.
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21 */
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22
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23 #ifndef _LED_BUTTON_H_
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24 #define _LED_BUTTON_H_
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25
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26 #include <QWidget>
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27
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28 class QColor;
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29
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30 class LEDButton : public QWidget
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31 {
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32 Q_OBJECT
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33 Q_PROPERTY(QColor color READ color WRITE setColor)
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34 Q_PROPERTY(int darkFactor READ darkFactor WRITE setDarkFactor)
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35
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36 public:
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37 LEDButton(QWidget *parent = 0);
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38 LEDButton(const QColor &col, QWidget *parent = 0);
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39 LEDButton(const QColor& col, bool state, QWidget *parent = 0);
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40 ~LEDButton();
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41
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42 bool state() const;
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43 QColor color() const;
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44 int darkFactor() const;
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45
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46 virtual QSize sizeHint() const;
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47 virtual QSize minimumSizeHint() const;
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48
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49 signals:
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50 void stateChanged(bool);
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51
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52 public slots:
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53 void toggle();
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54 void on();
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55 void off();
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56
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57 void setState(bool);
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58 void toggleState();
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59 void setColor(const QColor& color);
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60 void setDarkFactor(int darkfactor);
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61
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62 protected:
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63 void paintEvent(QPaintEvent *);
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64 void mousePressEvent(QMouseEvent *);
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65
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66 private:
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67 bool led_state;
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68 QColor led_color;
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69
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70 private:
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71 class LEDButtonPrivate;
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72 LEDButtonPrivate *d;
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73 };
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74
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75 #endif
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