/kde/autobuild/kdebase/kicker/taskmanager/taskmanager.h

/*****************************************************************

Copyright (c) 2000-2001 Matthias Elter <elter@kde.org>
Copyright (c) 2001 Richard Moore <rich@kde.org>

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

******************************************************************/

#ifndef __taskmanager_h__
#define __taskmanager_h__

#include <sys/types.h>

#include <tqobject.h>
#include <tqpixmap.h>
#include <tqpoint.h>
#include <tqptrlist.h>
#include <tqpixmap.h>
#include <tqdragobject.h>
#include <tqrect.h>
#include <tqvaluelist.h>
#include <tqvaluevector.h>

#include <ksharedptr.h>
#include <kstartupinfo.h>
#include <kwin.h>

#include <config.h>

#if defined(HAVE_XCOMPOSITE) && \
    defined(HAVE_XRENDER) && \
    defined(HAVE_XFIXES)
#include <X11/Xlib.h>
#include <X11/extensions/Xcomposite.h>
#include <X11/extensions/Xfixes.h>
#include <X11/extensions/Xrender.h>
#if XCOMPOSITE_VERSION >= 00200 && \
    XFIXES_VERSION >= 20000 && \
    (RENDER_MAJOR > 0 || RENDER_MINOR >= 6)
#define THUMBNAILING_POSSIBLE
#endif
#endif

class KWinModule;
class TaskManager;

typedef TQValueList<WId> WindowList;

class KDE_EXPORT Task: public TQObject, public KShared
{
    Q_OBJECT
    Q_PROPERTY( TQString visibleIconicName READ visibleIconicName )
    Q_PROPERTY( TQString iconicName READ iconicName )
    Q_PROPERTY( TQString visibleIconicNameWithState READ visibleIconicNameWithState )
    Q_PROPERTY( TQString visibleName READ visibleName )
    Q_PROPERTY( TQString name READ name )
    Q_PROPERTY( TQString visibleNameWithState READ visibleNameWithState )
    Q_PROPERTY( TQPixmap pixmap READ pixmap )
    Q_PROPERTY( bool maximized READ isMaximized )
    Q_PROPERTY( bool minimized READ isMinimized )
    // KDE4 deprecated
    Q_PROPERTY( bool iconified READ isIconified )
    Q_PROPERTY( bool shaded READ isShaded WRITE setShaded )
    Q_PROPERTY( bool active READ isActive )
    Q_PROPERTY( bool onCurrentDesktop READ isOnCurrentDesktop )
    Q_PROPERTY( bool onAllDesktops READ isOnAllDesktops )
    Q_PROPERTY( bool alwaysOnTop READ isAlwaysOnTop WRITE setAlwaysOnTop )
    Q_PROPERTY( bool modified READ isModified )
    Q_PROPERTY( bool demandsAttention READ demandsAttention )
    Q_PROPERTY( int desktop READ desktop )
    Q_PROPERTY( double thumbnailSize READ thumbnailSize WRITE setThumbnailSize )
    Q_PROPERTY( bool hasThumbnail READ hasThumbnail )
    Q_PROPERTY( TQPixmap thumbnail READ thumbnail )

public:
    typedef KSharedPtr<Task> Ptr;
    typedef TQValueVector<Task::Ptr> List;
    typedef TQMap<WId, Task::Ptr> Dict;

    Task(WId win, TQObject *parent, const char *name = 0);
    virtual ~Task();

    WId window() const { return _win; }
    KWin::WindowInfo info() const { return _info; }

#if 0 // this would use (_NET_)WM_ICON_NAME, which is shorter, but can be different from window name
    TQString visibleIconicName() const { return _info.visibleIconName(); }
    TQString visibleIconicNameWithState() const { return _info.visibleIconNameWithState(); }
    TQString iconicName() const { return _info.iconName(); }
#else
    TQString visibleIconicName() const { return _info.visibleName(); }
    TQString visibleIconicNameWithState() const { return _info.visibleNameWithState(); }
    TQString iconicName() const { return _info.name(); }
#endif
    TQString visibleName() const { return _info.visibleName(); }
    TQString visibleNameWithState() const { return _info.visibleNameWithState(); }
    TQString name() const { return _info.name(); }
    TQString className();
    TQString classClass();

    WindowList transients() const { return _transients; }

    TQPixmap pixmap() const { return _pixmap; }

    TQPixmap bestIcon( int size, bool &isStaticIcon );

    TQPixmap icon( int width, int height, bool allowResize = false );

    static bool idMatch(const TQString &, const TQString &);

    // state

    bool isMaximized() const;

    bool isMinimized() const;

    bool isIconified() const;

    bool isShaded() const;

    bool isActive() const;

    bool isOnTop() const;

    bool isOnCurrentDesktop() const;

    bool isOnAllDesktops() const;

    bool isAlwaysOnTop() const;

    bool isKeptBelowOthers() const;

    bool isFullScreen() const;

    bool isModified() const ;

    int desktop() const { return _info.desktop(); }

    bool demandsAttention() const;


    bool isOnScreen( int screen ) const;

    bool showInTaskbar() const { return _info.state() ^ NET::SkipTaskbar; }

    bool showInPager() const { return _info.state() ^ NET::SkipPager; }

    TQRect geometry() const { return _info.geometry(); }

    TQRect frameGeometry() const { return _info.frameGeometry(); }

    // internal

    //* @internal
    void refresh(unsigned int dirty);
    //* @internal
    void refreshIcon();
    //* @internal
    void addTransient( WId w, const NETWinInfo& info );
    //* @internal
    void removeTransient( WId w );
    //* @internal
    bool hasTransient(WId w) const { return _transients.find(w) != _transients.end(); }
    //* @internal
    void updateDemandsAttentionState( WId w );
    //* @internal
    void setActive(bool a);

    // For thumbnails

    double thumbnailSize() const { return _thumbSize; }

    void setThumbnailSize( double size ) { _thumbSize = size; }

    bool hasThumbnail() const { return !_thumb.isNull(); }

    const TQPixmap &thumbnail() const { return _thumb; }

    TQPixmap thumbnail(int maxDimension);

    void updateWindowPixmap();

public slots:
    // actions

    void setMaximized(bool);
    void toggleMaximized();

    void restore();

    void move();

    void resize();

    void setIconified(bool);
    void toggleIconified();

    void close();

    void raise();

    void lower();

    void activate();

    void activateRaiseOrIconify();

    void setAlwaysOnTop(bool);
    void toggleAlwaysOnTop();

    void setKeptBelowOthers(bool);
    void toggleKeptBelowOthers();

    void setFullScreen(bool);
    void toggleFullScreen();

    void setShaded(bool);
    void toggleShaded();

    void toDesktop(int);

    void toCurrentDesktop();

    void publishIconGeometry(TQRect);

    void updateThumbnail();

signals:
    void changed(bool geometryChangeOnly);

    void iconChanged();

    void activated();

    void deactivated();

    void thumbnailChanged();

protected slots:
    //* @internal
    void generateThumbnail();

protected:
    void findWindowFrameId();

private:
    bool                _active;
    WId                 _win;
    WId                 m_frameId;
    TQPixmap             _pixmap;
    KWin::WindowInfo    _info;
    WindowList          _transients;
    WindowList          _transients_demanding_attention;

    int                 _lastWidth;
    int                 _lastHeight;
    bool                _lastResize;
    TQPixmap             _lastIcon;

    double _thumbSize;
    TQPixmap _thumb;
    TQPixmap _grab;
    TQRect m_iconGeometry;
#ifdef THUMBNAILING_POSSIBLE
    Pixmap              m_windowPixmap;
#endif // THUMBNAILING_POSSIBLE
};


class KDE_EXPORT TaskDrag : public QStoredDrag
{
public:
    TaskDrag(const Task::List& tasks, TQWidget* source = 0,
             const char* name = 0);
    ~TaskDrag();

    static bool canDecode( const TQMimeSource* e );

    static Task::List decode( const TQMimeSource* e );
};


class KDE_EXPORT Startup: public TQObject, public KShared
{
    Q_OBJECT
    Q_PROPERTY( TQString text READ text )
    Q_PROPERTY( TQString bin READ bin )
    Q_PROPERTY( TQString icon READ icon )

public:
    typedef KSharedPtr<Startup> Ptr;
    typedef TQValueVector<Startup::Ptr> List;

    Startup( const KStartupInfoId& id, const KStartupInfoData& data, TQObject * parent,
        const char *name = 0);
    virtual ~Startup();

    TQString text() const { return _data.findName(); }

    TQString bin() const { return _data.bin(); }

    TQString icon() const { return _data.findIcon(); }
    void update( const KStartupInfoData& data );
    const KStartupInfoId& id() const { return _id; }

signals:
    void changed();

private:
    KStartupInfoId _id;
    KStartupInfoData _data;
    class StartupPrivate *d;
};


class KDE_EXPORT TaskManager : public QObject
{
    Q_OBJECT
    Q_PROPERTY( int currentDesktop READ currentDesktop )
    Q_PROPERTY( int numberOfDesktops READ numberOfDesktops )

public:
    static TaskManager* the();
    ~TaskManager();

    Task::Ptr findTask(WId w);

    Task::Ptr findTask(int desktop, const TQPoint& p);

    Task::Dict tasks() const { return m_tasksByWId; }

    Startup::List startups() const { return _startups; }

    TQString desktopName(int n) const;

    int numberOfDesktops() const;

    int currentDesktop() const;

    bool isOnTop(const Task*);

    void trackGeometry() { m_trackGeometry = true; }
    void trackGeometry(bool track) { m_trackGeometry = track; }

    static bool isOnScreen( int screen, const WId wid );

    KWinModule* winModule() const { return m_winModule; }

    void setXCompositeEnabled(bool state);
    static bool xCompositeEnabled() { return m_xCompositeEnabled != 0; }

signals:
    void taskAdded(Task::Ptr);

    void taskRemoved(Task::Ptr);

    void startupAdded(Startup::Ptr);

    void startupRemoved(Startup::Ptr);

    void desktopChanged(int desktop);

    void windowChanged(Task::Ptr);
    void windowChangedGeometry(Task::Ptr);

protected slots:
    //* @internal
    void windowAdded(WId);
    //* @internal
    void windowRemoved(WId);
    //* @internal
    void windowChanged(WId, unsigned int);

    //* @internal
    void activeWindowChanged(WId);
    //* @internal
    void currentDesktopChanged(int);
    //* @internal
    void killStartup( const KStartupInfoId& );
    //* @internal
    void killStartup(Startup::Ptr);

    //* @internal
    void gotNewStartup( const KStartupInfoId&, const KStartupInfoData& );
    //* @internal
    void gotStartupChange( const KStartupInfoId&, const KStartupInfoData& );

protected:
    void configure_startup();
    void updateWindowPixmap(WId);

private:
    TaskManager();

    Task::Ptr               _active;
    Task::Dict m_tasksByWId;
    WindowList _skiptaskbar_windows;
    Startup::List _startups;
    KStartupInfo* _startup_info;
    KWinModule* m_winModule;
    bool m_trackGeometry;

    static TaskManager* m_self;
    static uint m_xCompositeEnabled;

    class TaskManagerPrivate *d;
};

#endif

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