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 class SlideShowCfg;
  23
  24 //-----------------------------------------------------------------------------
  25 class kSlideShowSaver: public KScreenSaver
  26 {
  27   Q_OBJECT
  28 public:
  29   kSlideShowSaver( WId id );
  30   virtual ~kSlideShowSaver();
  31
  32   typedef int (kSlideShowSaver::*EffectMethod)(bool);
  33
  34   void readConfig();
  35
  36   void restart();
  37
  38 protected slots:
  39   void slotTimeout();
  40
  41 protected:
  42   void blank();
  43
  44   /** Load list of images from directory */
  45   virtual void loadDirectory();
  46
  47   /** Helper for loadDirectory() */
  48   virtual void traverseDirectory(const QString &dirName);
  49
  50   /** Load next image from list. If the file cannot be read
  51            it is automatically removed from the file list.
  52                 mImage contains the image after loading. */
  53   virtual void loadNextImage();
  54
  55   /** Show next screen, completely, without transition. */
  56   virtual void showNextScreen();
  57
  58   /** Set loaded image to next-screen buffer. */
  59   virtual void createNextScreen();
  60
  61   /** Initialize next-screen buffer. */
  62   virtual void initNextScreen();
  63
  64   /** Register effect methods in effect list. */
  65   virtual void registerEffects();
  66
  67   /** Various effects. If adding one, do not forget to manually
  68         add the effect to the list in the registerEffects() method. */
  69   int effectHorizLines(bool doInit);
  70   int effectVertLines(bool doInit);
  71   int effectRandom(bool doInit);
  72   int effectGrowing(bool doInit);
  73   int effectChessboard(bool doInit);
  74   int effectIncomingEdges(bool doInit);
  75   int effectBlobs(bool doInit);
  76   int effectCircleOut(bool doInit);
  77   int effectSweep(bool doInit);
  78   int effectMeltdown(bool doInit);
  79   int effectSpiralIn(bool doInit);
  80   int effectMultiCircleOut(bool doInit);
  81
  82 protected:
  83   /** Init mPainter with next-screen's pixmap and call
  84       mPainter.begin(&mWidget) */
  85   void startPainter(Qt::PenStyle penStyle=Qt::NoPen);
  86
  87 protected:
  88   bool mEffectRunning;
  89   QTimer mTimer;
  90   int mColorContext;
  91   QStringList mFileList;
  92   QStringList mRandomList;
  93   int mFileIdx;
  94   QImage mImage;
  95   QPixmap mNextScreen;
  96   EffectMethod* mEffectList;
  97   EffectMethod mEffect;
  98   int mNumEffects;
  99   QPainter mPainter;
 100   QString mImageName;
 101
 102   // config settings:
 103   bool mShowRandom;
 104   bool mZoomImages;
 105   bool mPrintName;
 106   bool mSubdirectory;
 107   bool mRandomPosition;
 108   int mDelay;
 109   QString mDirectory;
 110
 111   // values for state of various effects:
 112   int mx, my, mw, mh, mdx, mdy, mix, miy, mi, mj, mSubType;
 113   int mx0, my0, mx1, my1, mwait;
 114   double mfx, mfy, mAlpha, mfd;
 115   int* mIntArray;
 116 };
 117
 118
 119 //-----------------------------------------------------------------------------
 120 class kSlideShowSetup : public KDialogBase
 121 {
 122   Q_OBJECT
 123 public:
 124   kSlideShowSetup(QWidget *parent=NULL, const char *name=NULL);
 125   ~kSlideShowSetup();
 126
 127 protected:
 128   void readSettings();
 129
 130 protected slots:
 131   void slotOk();
 132   void slotHelp();
 133   void writeSettings();
 134   void slotDirSelected(const QString &where);
 135
 136 private:
 137   kSlideShowSaver *mSaver;
 138   SlideShowCfg *cfg;
 139 };
 140
 141 #endif /*SLIDESHOW_H*/
 142