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106 lines
5.0 KiB
106 lines
5.0 KiB
/***************************************************************************
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* Copyright (C) 2003 by Sébastien Laoût *
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* slaout@linux62.org *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
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***************************************************************************/
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#ifndef NOTEDRAG_H
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#define NOTEDRAG_H
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#include <tqstring.h>
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#include <tqdragobject.h>
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#include <tqdatastream.h>
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#include <tqpixmap.h>
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#include <tqvaluelist.h>
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#include <tdemultipledrag.h>
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class TQDataStream;
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class Basket;
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class Note;
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class NoteSelection;
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/** Dragging/Copying/Cutting Scenario:
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* - User select some notes and cut them;
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* - NoteDrag::toMultipleDrag() is called with a tree of the selected notes (see Basket::toSelectionTree()):
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* - This method create a new KMultipleDrag object, create a stream,
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* - And then browse all notes and call the virtual Note::serialize() with the stream as parameter for them to serialize theire content in the "native format".
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* - This give the MIME type "application/x-basket-note" that will be used by the application to paste the notes exactly as they were.
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* - Then the method try to set alterante formats for the dragged objects:
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* - It call successively toText() for each notes and stack up the result so theire is ONE big text flavour to add to the KMultipleDrag object
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* - It do the same with toHtml(), toImage() and toLink() to have those flavours as well, if possible...
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* - If there is only ONE copied note, addAlternateDragObjects() is called on it, so that Unknown objects can be dragged "as is".
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* - It's OK for the flavours. The method finally set the drag feedback pixmap by asking every selected notes to draw the content to a small pixmap.
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* - The pixmaps are joined to one big pixmap (but it should not exceed a defined size) and a border is drawn on this image.
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*
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* Pasting/Dropping Scenario:
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*
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* @author Sébastien Laoût
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*/
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class NoteDrag
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{
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protected:
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static void serializeNotes( NoteSelection *noteList, TQDataStream &stream, bool cutting );
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static void serializeText( NoteSelection *noteList, KMultipleDrag *multipleDrag );
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static void serializeHtml( NoteSelection *noteList, KMultipleDrag *multipleDrag );
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static void serializeImage( NoteSelection *noteList, KMultipleDrag *multipleDrag );
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static void serializeLinks( NoteSelection *noteList, KMultipleDrag *multipleDrag, bool cutting );
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static void setFeedbackPixmap( NoteSelection *noteList, KMultipleDrag *multipleDrag );
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static Note* decodeHierarchy(TQDataStream &stream, Basket *parent, bool moveFiles, bool moveNotes, Basket *originalBasket);
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public:
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static TQPixmap feedbackPixmap(NoteSelection *noteList);
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static TQDragObject* dragObject(NoteSelection *noteList, bool cutting, TQWidget *source = 0);
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static bool canDecode(TQMimeSource *source);
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static Note* decode(TQMimeSource *source, Basket *parent, bool moveFiles, bool moveNotes);
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static Basket* basketOf(TQMimeSource *source);
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static TQValueList<Note*> notesOf(TQMimeSource *source);
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static void createAndEmptyCuttingTmpFolder();
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static const char *NOTE_MIME_STRING;
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};
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/** TQTextDrag with capabilities to drop GNOME and Mozilla texts
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* as well as UTF-16 texts even if it was supposed to be encoded
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* with local encoding!
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* @author Sébastien Laoût
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*/
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class ExtendedTextDrag : public TQTextDrag
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{
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TQ_OBJECT
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public:
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static bool decode(const TQMimeSource *e, TQString &str);
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static bool decode(const TQMimeSource *e, TQString &str, TQCString &subtype);
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};
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// Support KDE 3.3 and older PROTECTED KURLDrag::encodedData()!
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#include <kurldrag.h>
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class KURLDrag2 : public KURLDrag
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{
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TQ_OBJECT
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public:
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KURLDrag2(const KURL::List &urls) : KURLDrag(urls) {}
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TQByteArray encodedData2(const char *mime) const
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{
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return encodedData(mime);
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}
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};
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#endif // NOTEDRAG_H
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