kscreensaver/kdesavers/slideshow.h

   1 /* Slide Show Screen Saver
   2  * (C) 1999 Stefan Taferner <taferner@kde.org>
   3  * (C) 2003 Sven Leiber <s.leiber@web.de>
   4  */
   5
   6
   7 #ifndef SLIDESHOW_H
   8 #define SLIDESHOW_H
   9
  10 #include <qtimer.h>
  11 #include <q3ptrlist.h>
  12 #include <qstringlist.h>
  13 #include <qpixmap.h>
  14 #include <qpainter.h>
  15 #include <qimage.h>
  16
  17 #include <kscreensaver.h>
  18 #include <kdialogbase.h>
  19
  20 #include "slideshowcfg.h"
  21
  22 //-----------------------------------------------------------------------------
  23 class kSlideShowSaver: public KScreenSaver
  24 {
  25   Q_OBJECT
  26 public:
  27   kSlideShowSaver( WId id );
  28   virtual ~kSlideShowSaver();
  29
  30   typedef int (kSlideShowSaver::*EffectMethod)(bool);
  31
  32   void readConfig();
  33
  34   void restart();
  35
  36 protected slots:
  37   void slotTimeout();
  38
  39 protected:
  40   void blank();
  41
  42   /** Load list of images from directory */
  43   virtual void loadDirectory();
  44
  45   /** Helper for loadDirectory() */
  46   virtual void traverseDirectory(const QString &dirName);
  47
  48   /** Load next image from list. If the file cannot be read
  49            it is automatically removed from the file list.
  50                 mImage contains the image after loading. */
  51   virtual void loadNextImage();
  52
  53   /** Show next screen, completely, without transition. */
  54   virtual void showNextScreen();
  55
  56   /** Set loaded image to next-screen buffer. */
  57   virtual void createNextScreen();
  58
  59   /** Initialize next-screen buffer. */
  60   virtual void initNextScreen();
  61
  62   /** Register effect methods in effect list. */
  63   virtual void registerEffects();
  64
  65   /** Various effects. If adding one, do not forget to manually
  66         add the effect to the list in the registerEffects() method. */
  67   int effectHorizLines(bool doInit);
  68   int effectVertLines(bool doInit);
  69   int effectRandom(bool doInit);
  70   int effectGrowing(bool doInit);
  71   int effectChessboard(bool doInit);
  72   int effectIncomingEdges(bool doInit);
  73   int effectBlobs(bool doInit);
  74   int effectCircleOut(bool doInit);
  75   int effectSweep(bool doInit);
  76   int effectMeltdown(bool doInit);
  77   int effectSpiralIn(bool doInit);
  78   int effectMultiCircleOut(bool doInit);
  79
  80 protected:
  81   /** Init mPainter with next-screen's pixmap and call
  82       mPainter.begin(&mWidget) */
  83   void startPainter(Qt::PenStyle penStyle=Qt::NoPen);
  84
  85 protected:
  86   bool mEffectRunning;
  87   QTimer mTimer;
  88   QStringList mFileList;
  89   QStringList mRandomList;
  90   int mFileIdx;
  91   QImage mImage;
  92   QPixmap mNextScreen;
  93   EffectMethod* mEffectList;
  94   EffectMethod mEffect;
  95   int mNumEffects;
  96   QPainter mPainter;
  97   QString mImageName;
  98
  99   // config settings:
 100   bool mShowRandom;
 101   bool mZoomImages;
 102   bool mPrintName;
 103   bool mSubdirectory;
 104   bool mRandomPosition;
 105   int mDelay;
 106   QString mDirectory;
 107
 108   // values for state of various effects:
 109   int mx, my, mw, mh, mdx, mdy, mix, miy, mi, mj, mSubType;
 110   int mx0, my0, mx1, my1, mwait;
 111   double mfx, mfy, mAlpha, mfd;
 112   int* mIntArray;
 113 };
 114
 115
 116 //-----------------------------------------------------------------------------
 117 class kSlideShowSetup : public KDialogBase
 118 {
 119   Q_OBJECT
 120 public:
 121   kSlideShowSetup(QWidget *parent=NULL, const char *name=NULL);
 122   ~kSlideShowSetup();
 123
 124 protected:
 125   void readSettings();
 126
 127 protected slots:
 128   void slotOk();
 129   void slotHelp();
 130   void writeSettings();
 131   void slotDirSelected(const QString &where);
 132
 133 private:
 134   kSlideShowSaver *mSaver;
 135   Ui_SlideShowCfg *cfg;
 136 };
 137
 138 #endif /*SLIDESHOW_H*/
 139