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annotate src/pngplayer.h @ 48:f16747c28756

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author Andre Heinecke <andre.heinecke@intevation.de>
date Thu, 07 May 2015 10:22:05 +0200
parents 73e6b6b12412
children 098a10fc2e83
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
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14 class QSlider;
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15 class QLabel;
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16 class QPushButton;
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17 class ImageLabel;
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18
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19 class PNGPlayer: public QWidget
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20 {
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21 Q_OBJECT
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22
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23 public:
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24 PNGPlayer (QWidget * parent = 0, Qt::WindowFlags f = 0);
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26 /**@brief close the player
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27 *
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28 * This function makes sure that the png label is also
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29 * closed when detached.
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30 **/
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31 void close();
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32 protected:
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33 void setupGUI();
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34
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35 protected slots:
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36 /**@brief the view slider was changed manually */
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37 void sliderChanged();
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38 /**@brief the view slider was pressed */
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39 void sliderPressed();
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40 /**@brief the view slider was released */
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41 void sliderReleased();
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42
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43 /**@brief jump to the first frame */
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44 void firstClicked();
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45
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46 /**@brief jump to the last frame */
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47 void lastClicked();
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48
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49 public slots:
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50 /**@brief show a PNG in the viewer.
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51 *
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52 * @param fileName: The picture file to show.
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53 * @param current: The row index of the currently shown image.
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54 * @param max: The row count.
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55 * @param timestamp: The timestamp of the image.
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56 * @param number: The index number of the picture to show.
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57 */
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58 void showPicture(const QString& fileName, int current, int max,
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59 const QString& timestamp, int number);
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60
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61 /**@brief set the base dir to which filenames will be relative. */
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62 void setBaseDir(const QString& dirName) { mBaseDir.setPath(dirName); }
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64 /**@brief update positional information / slider current / max info. */
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65 void updatePositions(int current, int max, const QString& timestamp, int number);
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66
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67 /**@brief set the replay speed */
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68 void setSpeed(int mSecsPerPicture);
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69
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70 /**@brief start or pause the replay */
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71 void togglePlay();
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72
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73 /**@brief the speed bar was changed */
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74 void speedChanged();
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75
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76 /**@brief detach the actual picture as fullscreen */
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77 void togglePicFullscreen();
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78
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79 Q_SIGNALS:
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80 /** @brief Emited if something went wrong. e.g. file not readable */
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81 void error(const QString& msg);
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82
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83 /** @brief Emited if the player wants to advance to the next picture */
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84 void advance();
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85
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86 /** @brief Emited if the player wants to go back to the last picture */
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87 void back();
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88
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89 /** @brief Emited it the player wants to advance to a specific frame. */
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90 void jumpToFrame(int frame);
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91
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92 protected:
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93 ImageLabel *mPNGLabel;
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94 QLabel *mPositionLabel,
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95 *mCurSpeedLabel;
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96 int mCurSpeed;
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97 int mMax;
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98 QDir mBaseDir;
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99 QTimer mAdvanceTimer;
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100 QSlider *mSlider,
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101 *mSpeedSlider;
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102 QPushButton *mPlayBtn;
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103 };
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104
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106
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107 #endif // PNGPLAYER_H
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