/kde/autobuild/kdebase/kdesktop/bgmanager.h Source File

00001 /* vi: ts=8 sts=4 sw=4
00002  *
00003  * This file is part of the KDE project, module kdesktop.
00004  * Copyright (C) 1999,2000 Geert Jansen <jansen@kde.org>
00005  *
00006  * You can Freely distribute this program under the GNU General Public
00007  * License. See the file "COPYING" for the exact licensing terms.
00008  */
00009 
00010 #ifndef __BGManager_h_Included__
00011 #define __BGManager_h_Included__
00012 
00013 #include <tqstring.h>
00014 #include <tqptrvector.h>
00015 
00016 #include <KBackgroundIface.h>
00017 
00018 #if defined(Q_WS_X11) && defined(HAVE_XRENDER) && QT_VERSION >= 0x030300
00019 #define COMPOSITE
00020 #endif
00021 
00022 class KConfig;
00023 class TQTimer;
00024 class TQPixmap;
00025 class KPopupMenu;
00026 class KWinModule;
00027 class KPixmap;
00028 class KVirtualBGRenderer;
00029 class KPixmapServer;
00030 
00034 struct KBackgroundCacheEntry
00035 {
00036     int hash;
00037     int atime;
00038     int exp_from;
00039     KPixmap *pixmap;
00040 };
00041 
00042 
00052 class KBackgroundManager
00053     : public TQObject,
00054       virtual public KBackgroundIface
00055 {
00056     Q_OBJECT
00057 
00058 public:
00059     KBackgroundManager(TQWidget *desktop, KWinModule* kwinModule);
00060     ~KBackgroundManager();
00061 
00062     void configure();
00063     void setCommon(int);
00064     bool isCommon() { return m_bCommon; };
00065     void setExport(int);
00066     bool isExport() { return m_bExport; };
00067     void setCache(int, int);
00068     void setWallpaper(int desk, TQString wallpaper, int mode);
00069     void setWallpaper(TQString wallpaper, int mode);
00070     void setWallpaper(TQString wallpaper);
00071     void changeWallpaper();
00072     TQString currentWallpaper(int desk);
00073     void setColor(const TQColor & c, bool isColorA = true);
00074     void setBackgroundEnabled(const bool enable);
00075     TQStringList wallpaperList(int desk);
00076     TQStringList wallpaperFiles(int desk);
00077 
00078 signals:
00079     void initDone();
00080 
00081 private slots:
00082     void slotTimeout();
00083     void slotImageDone(int desk);
00084     void slotChangeDesktop(int);
00085     void slotChangeViewport(int, const TQPoint&);
00086     void slotChangeNumberOfDesktops(int);
00087     void repaintBackground();
00088     void desktopResized();
00089     void clearRoot();
00090     void saveImages();
00091 
00092 #ifdef COMPOSITE
00093     void slotCmBackgroundChanged(bool);
00094 #endif
00095     
00096 private:
00097     void applyCommon(bool common);
00098     void applyExport(bool _export);
00099     void applyCache(bool limit, int size);
00100 
00101     int realDesktop();
00102     int effectiveDesktop();
00103     int validateDesk(int desk);
00104     int m_numberOfViewports;
00105 
00106     void renderBackground(int desk);
00107     void exportBackground(int pixmap, int desk);
00108     int pixmapSize(TQPixmap *pm);
00109     int cacheSize();
00110     void removeCache(int desk);
00111     bool freeCache(int size);
00112     void addCache(KPixmap *pm, int hash, int desk);
00113     void setPixmap(KPixmap *pm, int hash, int desk);
00114 
00115     bool m_bExport, m_bCommon;
00116     bool m_bLimitCache, m_bInit;
00117     bool m_bBgInitDone;
00118     bool m_bEnabled;
00119 
00120     int m_CacheLimit;
00121     int m_Serial, m_Hash, m_Current;
00122 
00123     KConfig *m_pConfig;
00124     TQWidget *m_pDesktop;
00125     TQTimer *m_pTimer;
00126 
00127 #ifdef COMPOSITE
00128         KPixmap *m_tPixmap;
00129 #endif
00130         
00131     TQPtrVector<KVirtualBGRenderer> m_Renderer;
00132     TQPtrVector<KBackgroundCacheEntry> m_Cache;
00133 
00134     KWinModule *m_pKwinmodule;
00135     KPixmapServer *m_pPixmapServer;
00136     
00137     unsigned long m_xrootpmap;
00138 };
00139 
00140 #endif // __BGManager_h_Included__