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annotate src/pngplayer.h @ 37:0c05958d254c

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(issue 13, 6) Add constant index number column to data and view
author Andre Heinecke <andre.heinecke@intevation.de>
date Wed, 06 May 2015 17:17:13 +0200
parents 64a51a42c01f
children 26e1521b9afd
rev   line source
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1 #ifndef PNGPLAYER_H
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2 #define PNGPLAYER_H
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3 /* Copyright (C) 2015 by ETH Zürich
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4 * Software engineering by Intevation GmbH
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5 *
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6 * This file is Free Software under the GNU GPL (v>=2)
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7 * and comes with ABSOLUTELY NO WARRANTY!
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8 * See LICENSE.txt for details.
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9 */
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10 #include <QWidget>
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11 #include <QDir>
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12 #include <QTimer>
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13 #include <QDateTime>
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15 class QSlider;
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16 class QLabel;
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17 class QPushButton;
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18 class ImageLabel;
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19
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20 class PNGPlayer: public QWidget
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21 {
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22 Q_OBJECT
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23
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24 public:
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25 PNGPlayer (QWidget * parent = 0, Qt::WindowFlags f = 0);
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26
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27 protected:
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28 void setupGUI();
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29
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30 protected slots:
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31 /**@brief the view slider was changed manually */
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32 void sliderChanged();
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33 /**@brief the view slider was pressed */
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34 void sliderPressed();
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35 /**@brief the view slider was released */
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36 void sliderReleased();
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37
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38 /**@brief jump to the first frame */
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39 void firstClicked();
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40
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41 /**@brief jump to the last frame */
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42 void lastClicked();
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43
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44 public slots:
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45 /**@brief show a PNG in the viewer.
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46 *
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47 * @param fileName: The picture file to show.
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48 * @param current: The row index of the currently shown image.
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49 * @param max: The row count.
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50 * @param timestamp: The timestamp of the image.
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51 * @param number: The index number of the picture to show.
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52 */
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53 void showPicture(const QString& fileName, int current, int max,
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54 const QDateTime& timestamp, int number);
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55
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56 /**@brief set the base dir to which filenames will be relative. */
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57 void setBaseDir(const QString& dirName) { mBaseDir.setPath(dirName); }
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58
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59 /**@brief update positional information / slider current / max info. */
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60 void updatePositions(int current, int max, const QDateTime& timestamp, int number);
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61
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62 /**@brief set the replay speed */
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63 void setSpeed(int mSecsPerPicture);
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64
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65 /**@brief start or pause the replay */
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66 void togglePlay();
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67
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68 /**@brief the speed bar was changed */
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69 void speedChanged();
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70
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71 Q_SIGNALS:
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72 /** @brief Emited if something went wrong. e.g. file not readable */
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73 void error(const QString& msg);
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74
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75 /** @brief Emited if the player wants to advance to the next picture */
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76 void advance();
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77
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78 /** @brief Emited if the player wants to go back to the last picture */
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79 void back();
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80
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81 /** @brief Emited it the player wants to advance to a specific frame. */
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82 void jumpToFrame(int frame);
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83
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84 protected:
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85 ImageLabel *mPNGLabel;
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86 QLabel *mPositionLabel,
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87 *mCurSpeedLabel;
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88 int mCurSpeed;
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89 int mMax;
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90 QDir mBaseDir;
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91 QTimer mAdvanceTimer;
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92 QSlider *mSlider,
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93 *mSpeedSlider;
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94 QPushButton *mPlayBtn;
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95 };
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98
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99 #endif // PNGPLAYER_H
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