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# ntqdragobject.h

This is the verbatim text of the ntqdragobject.h include file. It is provided only for illustration; the copyright remains with Trolltech.

    /****************************************************************************
    ** $Id: qt/ntqdragobject.h   3.3.8   edited Jan 11 14:38 $
    **
    ** Definition of TQDragObject
    **
    ** Copyright (C) 1992-2007 Trolltech ASA.  All rights reserved.
    **
    ** This file is part of the kernel module of the TQt GUI Toolkit.
    **
    ** This file may be used under the terms of the GNU General Public
    ** License versions 2.0 or 3.0 as published by the Free Software
    ** Foundation and appearing in the file LICENSE.GPL included in the
    ** packaging of this file. Alternatively you may (at your option) use any
    ** later version of the GNU General Public License if such license has
    ** been publicly approved by Trolltech ASA (or its successors, if any)
    ** and the KDE Free TQt Foundation.
    **
    ** Please review the following information to ensure GNU General
    ** Public Licensing requirements will be met:
    ** http://trolltech.com/products/qt/licenses/licensing/opensource/.
    ** If you are unsure which license is appropriate for your use, please
    ** review the following information:
    ** http://trolltech.com/products/qt/licenses/licensing/licensingoverview
    ** or contact the sales department at sales@trolltech.com.
    **
    ** This file may be used under the terms of the Q Public License as
    ** defined by Trolltech ASA and appearing in the file LICENSE.TQPL
    ** included in the packaging of this file.  Licensees holding valid TQt
    ** Commercial licenses may use this file in accordance with the TQt
    ** Commercial License Agreement provided with the Software.
    **
    ** This file is provided "AS IS" with NO WARRANTY OF ANY KIND,
    ** INCLUDING THE WARRANTIES OF DESIGN, MERCHANTABILITY AND FITNESS FOR
    ** A PARTICULAR PURPOSE. Trolltech reserves all rights not granted
    ** herein.
    **
    **********************************************************************/

    #ifndef TQDRAGOBJECT_H
    #define TQDRAGOBJECT_H

    class TQWidget;
    class TQTextDragPrivate;
    class TQDragObjectData;
    class TQStoredDragData;
    class TQImageDragData;

    #ifndef QT_H
    #include "ntqobject.h"
    #include "ntqimage.h"
    #include "ntqstrlist.h"
    #include "ntqcolor.h"
    #endif // QT_H

    #ifndef TQT_NO_MIME

    class TQ_EXPORT TQDragObject: public TQObject, public TQMimeSource {
        TQ_OBJECT
    public:
        TQDragObject( TQWidget * dragSource = 0, const char * name = 0 );
        virtual ~TQDragObject();

    #ifndef TQT_NO_DRAGANDDROP
        bool drag();
        bool dragMove();
        void dragCopy();
        void dragLink();

        virtual void setPixmap(TQPixmap);
        virtual void setPixmap(TQPixmap, const TQPoint& hotspot);
        TQPixmap pixmap() const;
        TQPoint pixmapHotSpot() const;
    #endif

        TQWidget * source();
        static TQWidget * target();

        static void setTarget(TQWidget*);

    #ifndef TQT_NO_DRAGANDDROP
        enum DragMode { DragDefault, DragCopy, DragMove, DragLink, DragCopyOrMove };

    protected:
        virtual bool drag(DragMode);
    #endif

    private:
        TQDragObjectData * d;
    #if defined(TQ_DISABLE_COPY) // Disabled copy constructor and operator=
        TQDragObject( const TQDragObject & );
        TQDragObject &operator=( const TQDragObject & );
    #endif
    };

    class TQ_EXPORT TQStoredDrag: public TQDragObject {
        TQ_OBJECT
        TQStoredDragData * d;

    public:
        TQStoredDrag( const char * mimeType,
    		 TQWidget * dragSource = 0, const char * name = 0 );
        ~TQStoredDrag();

        virtual void setEncodedData( const TQByteArray & );

        const char * format(int i) const;
        virtual TQByteArray encodedData(const char*) const;

    private:
    #if defined(TQ_DISABLE_COPY) // Disabled copy constructor and operator=
        TQStoredDrag( const TQStoredDrag & );
        TQStoredDrag &operator=( const TQStoredDrag & );
    #endif
    };

    class TQ_EXPORT TQTextDrag: public TQDragObject {
        TQ_OBJECT
        TQTextDragPrivate* d;
    public:
        TQTextDrag( const TQString &,
    	       TQWidget * dragSource = 0, const char * name = 0 );
        TQTextDrag( TQWidget * dragSource = 0, const char * name = 0 );
        ~TQTextDrag();

        virtual void setText( const TQString &);
        virtual void setSubtype( const TQCString &);

        const char * format(int i) const;
        virtual TQByteArray encodedData(const char*) const;

        static bool canDecode( const TQMimeSource* e );
        static bool decode( const TQMimeSource* e, TQString& s );
        static bool decode( const TQMimeSource* e, TQString& s, TQCString& subtype );

    private:
    #if defined(TQ_DISABLE_COPY) // Disabled copy constructor and operator=
        TQTextDrag( const TQTextDrag & );
        TQTextDrag &operator=( const TQTextDrag & );
    #endif
    };

    class TQ_EXPORT TQImageDrag: public TQDragObject {
        TQ_OBJECT
        TQImage img;
        TQStrList ofmts;
        TQImageDragData* d;

    public:
        TQImageDrag( TQImage image, TQWidget * dragSource = 0, const char * name = 0 );
        TQImageDrag( TQWidget * dragSource = 0, const char * name = 0 );
        ~TQImageDrag();

        virtual void setImage( TQImage image );

        const char * format(int i) const;
        virtual TQByteArray encodedData(const char*) const;

        static bool canDecode( const TQMimeSource* e );
        static bool decode( const TQMimeSource* e, TQImage& i );
        static bool decode( const TQMimeSource* e, TQPixmap& i );

    private:
    #if defined(TQ_DISABLE_COPY) // Disabled copy constructor and operator=
        TQImageDrag( const TQImageDrag & );
        TQImageDrag &operator=( const TQImageDrag & );
    #endif
    };

    class TQ_EXPORT TQUriDrag: public TQStoredDrag {
        TQ_OBJECT

    public:
        TQUriDrag( TQStrList uris, TQWidget * dragSource = 0, const char * name = 0 );
        TQUriDrag( TQWidget * dragSource = 0, const char * name = 0 );
        ~TQUriDrag();

        void setFilenames( const TQStringList & fnames ) { setFileNames( fnames ); }
        void setFileNames( const TQStringList & fnames );
        void setUnicodeUris( const TQStringList & uuris );
        virtual void setUris( TQStrList uris );

        static TQString uriToLocalFile(const char*);
        static TQCString localFileToUri(const TQString&);
        static TQString uriToUnicodeUri(const char*);
        static TQCString unicodeUriToUri(const TQString&);
        static bool canDecode( const TQMimeSource* e );
        static bool decode( const TQMimeSource* e, TQStrList& i );
        static bool decodeToUnicodeUris( const TQMimeSource* e, TQStringList& i );
        static bool decodeLocalFiles( const TQMimeSource* e, TQStringList& i );

    private:
    #if defined(TQ_DISABLE_COPY) // Disabled copy constructor and operator=
        TQUriDrag( const TQUriDrag & );
        TQUriDrag &operator=( const TQUriDrag & );
    #endif
    };

    class TQ_EXPORT TQColorDrag : public TQStoredDrag
    {
        TQ_OBJECT
        TQColor color;

    public:
        TQColorDrag( const TQColor &col, TQWidget *dragsource = 0, const char *name = 0 );
        TQColorDrag( TQWidget * dragSource = 0, const char * name = 0 );
        void setColor( const TQColor &col );

        static bool canDecode( TQMimeSource * );
        static bool decode( TQMimeSource *, TQColor &col );

    private:
    #if defined(TQ_DISABLE_COPY) // Disabled copy constructor and operator=
        TQColorDrag( const TQColorDrag & );
        TQColorDrag &operator=( const TQColorDrag & );
    #endif
    };

    #ifndef TQT_NO_COMPAT
    typedef TQUriDrag TQUrlDrag;
    #endif

    #ifndef TQT_NO_DRAGANDDROP

    // TQDragManager is not part of the public API.  It is defined in a
    // header file simply so different .cpp files can implement different
    // member functions.
    //

    class TQ_EXPORT TQDragManager: public TQObject {
        TQ_OBJECT

    private:
        TQDragManager();
        ~TQDragManager();
        // only friend classes can use TQDragManager.
        friend class TQDragObject;
        friend class TQDragMoveEvent;
        friend class TQDropEvent;
        friend class TQApplication;

        bool eventFilter( TQObject *, TQEvent * );
        void timerEvent( TQTimerEvent* );

        bool drag( TQDragObject *, TQDragObject::DragMode );

        void cancel( bool deleteSource = TRUE );
        void move( const TQPoint & );
        void drop();
        void updatePixmap();

    private:
        TQDragObject * object;
        void updateMode( ButtonState newstate );
        void updateCursor();
    #if defined(TQ_WS_X11)
        void createCursors();
    #endif

        TQWidget * dragSource;
        TQWidget * dropWidget;
        bool beingCancelled;
        bool restoreCursor;
        bool willDrop;

        TQPixmap *pm_cursor;
        int n_cursor;
    #if defined(TQ_DISABLE_COPY) // Disabled copy constructor and operator=
        TQDragManager( const TQDragManager & );
        TQDragManager &operator=( const TQDragManager & );
    #endif
    };

    #endif

    #endif // TQT_NO_MIME

    #endif // TQDRAGOBJECT_H