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krootpixmap.h

00001 /* vi: ts=8 sts=4 sw=4
00002  *
00003  * $Id$
00004  * This file is part of the KDE project, module kdesktop.
00005  * Copyright (C) 1999,2000 Geert Jansen <jansen@kde.org>
00006  *
00007  * You can Freely distribute this program under the GNU Library General
00008  * Public License. See the file "COPYING.LIB" for the exact licensing terms.
00009  */
00010 
00011 #ifndef __KRootPixmap_h_Included__
00012 #define __KRootPixmap_h_Included__
00013 
00014 #include <tqobject.h>
00015 #include <tqcolor.h>
00016 #include <tdelibs_export.h>
00017 
00018 #ifndef Q_WS_QWS //FIXME
00019 
00020 class TQRect;
00021 class TQWidget;
00022 class TQTimer;
00023 class TDESharedPixmap;
00024 class KRootPixmapData;
00025 
00046 class TDEUI_EXPORT KRootPixmap: public TQObject
00047 {
00048     Q_OBJECT
00049 
00050 public:
00060     KRootPixmap( TQWidget *target, const char *name=0 );
00061 
00066     KRootPixmap( TQWidget *target, TQObject *parent, const char *name=0 );
00067 
00071     virtual ~KRootPixmap();
00072 
00077     bool isAvailable() const;
00078 
00082     bool isActive() const { return m_bActive; }
00083 
00087     int currentDesktop() const;
00088 
00093     bool customPainting() const { return m_bCustomPaint; }
00094 
00095 #ifndef KDE_NO_COMPAT
00096 
00100     KDE_DEPRECATED bool checkAvailable(bool) { return isAvailable(); }
00101 #endif
00102 
00106     const TQColor &color() const { return m_FadeColor; }
00107 
00111     const double &blurRadius() const { return m_BlurRadius; }
00112 
00116     const double &blurSigma() const { return m_BlurSigma; }
00117 
00121     double opacity() const { return m_Fade; }
00122 
00123 public slots:
00127     virtual void start();
00128 
00132     virtual void stop();
00133 
00144     void setFadeEffect(double opacity, const TQColor &color);
00145 
00156     void setBlurEffect(double radius, double sigma);
00157 
00164     void repaint( bool force );
00165 
00171     void repaint();
00172 
00179     void setCustomPainting( bool enable ) { m_bCustomPaint = enable; }
00180 
00185     void enableExports();
00186 
00190     static TQString pixmapName(int desk);
00191 signals:
00198     void backgroundUpdated( const TQPixmap &pm );
00199 
00200 protected:
00205     virtual bool eventFilter(TQObject *, TQEvent *);
00206 
00212     virtual void updateBackground( TDESharedPixmap * );
00213 
00214 private slots:
00215     void slotBackgroundChanged(int);
00216     void slotDone(bool);
00217     void desktopChanged(int desktop);
00218     void desktopChanged( WId window, unsigned int properties );
00219 
00220 private:
00221     bool m_bActive, m_bInit, m_bCustomPaint;
00222     int m_Desk;
00223 
00224     double m_Fade;
00225     TQColor m_FadeColor;
00226     double m_BlurRadius;
00227     double m_BlurSigma;
00228 
00229     TQRect m_Rect;
00230     TQWidget *m_pWidget;
00231     TQTimer *m_pTimer;
00232     TDESharedPixmap *m_pPixmap;
00233     KRootPixmapData *d;
00234 
00235     void init();
00236 };
00237 
00238 #endif // ! Q_WS_QWS
00239 #endif // __KRootPixmap_h_Included__
00240 

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