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annotate src/pngplayer.h @ 3:248d5d1cdb38

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Add functionalty to control buttons and make picture resizable
author Andre Heinecke <andre.heinecke@intevation.de>
date Mon, 23 Mar 2015 19:10:01 +0100
parents 97d2c8869c39
children 107e435cb569
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) 2014 by Intevation GmbH
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4 *
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5 * This file is Free Software under the GNU GPL (v>=2)
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6 * and comes with ABSOLUTELY NO WARRANTY!
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7 * See LICENSE.txt for details.
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8 */
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9 #include <QWidget>
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10 #include <QDir>
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11 #include <QTimer>
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12 #include <QDateTime>
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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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25
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26 protected:
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27 void setupGUI();
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28
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29 protected slots:
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30 /**@brief the view slider was changed manually */
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31 void sliderChanged();
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32 /**@brief the view slider was pressed */
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33 void sliderPressed();
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34 /**@brief the view slider was released */
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35 void sliderReleased();
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36
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37 /**@brief jump to the first frame */
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38 void firstClicked();
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39
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40 /**@brief jump to the last frame */
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41 void lastClicked();
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42
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43 public slots:
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44 /**@brief show a PNG in the viewer.
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45 *
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46 * @param fileName: The picture file to show.
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47 * @param current: The row index of the currently shown image.
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48 * @param max: The row count.
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49 * @param timestamp: The timestamp of the image.
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50 */
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51 void showPicture(const QString& fileName, int current, int max,
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52 const QDateTime& timestamp);
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53
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54 /**@brief set the base dir to which filenames will be relative. */
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55 void setBaseDir(const QString& dirName) { mBaseDir.setPath(dirName); }
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56
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57 /**@brief update positional information / slider current / max info. */
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58 void updatePositions(int current, int max, const QDateTime& timestamp);
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59
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60 /**@brief set the replay speed */
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61 void setSpeed(int mSecsPerPicture);
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62
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63 /**@brief start or pause the replay */
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64 void togglePlay();
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65 Q_SIGNALS:
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66 /** @brief Emited if something went wrong. e.g. file not readable */
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67 void error(const QString& msg);
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68
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69 /** @brief Emited if the player wants to advance to the next picture */
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70 void advance();
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71
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72 /** @brief Emited if the player wants to go back to the last picture */
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73 void back();
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74
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75 /** @brief Emited it the player wants to advance to a specific frame. */
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76 void jumpToFrame(int frame);
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77
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78 protected:
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79 ImageLabel *mPNGLabel;
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80 QLabel *mPositionLabel,
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81 *mCurSpeedLabel;
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82 int mCurSpeed;
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83 int mMax;
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84 QDir mBaseDir;
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85 QTimer mAdvanceTimer;
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86 QSlider *mSlider,
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87 *mSpeedSlider;
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88 QPushButton *mPlayBtn;
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89 };
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92
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93 #endif // PNGPLAYER_H
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