1 /* 2 This file is part of the KDE project 3 * Copyright (C) 2009 Ganesh Paramasivam <ganesh@crystalfab.com> 4 * Copyright (C) 2012 C. Boemann <cbo@boemann.dk> 5 * Copyright (C) 2014-2015 Denis Kuplyakov <dener.kup@gmail.com> 6 * 7 * This library is free software; you can redistribute it and/or 8 * modify it under the terms of the GNU Library General Public 9 * License as published by the Free Software Foundation; either 10 * version 2 of the License, or (at your option) any later version. 11 * 12 * This library is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 15 * Library General Public License for more details. 16 * 17 * You should have received a copy of the GNU Library General Public License 18 * along with this library; see the file COPYING.LIB. If not, write to 19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 20 * Boston, MA 02110-1301, USA.*/ 21 22 #ifndef DELETECOMMAND_H 23 #define DELETECOMMAND_H 24 25 #include "KoTextCommandBase.h" 26 27 #include <QTextCharFormat> 28 #include <QHash> 29 #include <QSet> 30 #include <QWeakPointer> 31 32 class QTextDocument; 33 34 class KoShapeController; 35 class KoInlineObject; 36 class KoTextRange; 37 class KoSection; 38 39 class DeleteVisitor; 40 41 class DeleteCommand : public KoTextCommandBase 42 { 43 public: 44 enum DeleteMode { 45 PreviousChar, 46 NextChar 47 }; 48 49 DeleteCommand(DeleteMode mode, QTextDocument *document, KoShapeController *shapeController, KUndo2Command* parent = 0); 50 ~DeleteCommand() override; 51 52 void undo() override; 53 void redo() override; 54 55 int id() const override; 56 bool mergeWith(const KUndo2Command *command) override; 57 58 private: 59 friend class DeleteVisitor; 60 61 struct SectionDeleteInfo { SectionDeleteInfoSectionDeleteInfo62 SectionDeleteInfo(KoSection *_section, int _childIdx) 63 : section(_section) 64 , childIdx(_childIdx) 65 { 66 } 67 68 bool operator<(const SectionDeleteInfo &other) const; 69 70 KoSection *section; ///< Section to remove 71 int childIdx; ///< Position of section in parent's children() list 72 }; 73 74 QWeakPointer<QTextDocument> m_document; 75 KoShapeController *m_shapeController; 76 77 QSet<KoInlineObject *> m_invalidInlineObjects; 78 QList<QTextCursor> m_cursorsToWholeDeleteBlocks; 79 QHash<int, KoTextRange *> m_rangesToRemove; 80 QList<SectionDeleteInfo> m_sectionsToRemove; 81 82 bool m_first; 83 DeleteMode m_mode; 84 int m_position; 85 int m_length; 86 QTextCharFormat m_format; 87 bool m_mergePossible; 88 89 void doDelete(); 90 void deleteInlineObject(KoInlineObject *object); 91 bool checkMerge(const KUndo2Command *command); 92 void updateListChanges(); 93 void finalizeSectionHandling(QTextCursor *caret, DeleteVisitor &visitor); 94 void deleteSectionsFromModel(); 95 void insertSectionsToModel(); 96 }; 97 98 #endif // DELETECOMMAND_H 99