/* -*- Mode: C++; c-default-style: "k&r"; indent-tabs-mode: nil; tab-width: 2; c-basic-offset: 2 -*- */
/* libmwaw
* Version: MPL 2.0 / LGPLv2+
*
* The contents of this file are subject to the Mozilla Public License Version
* 2.0 (the "License"); you may not use this file except in compliance with
* the License or as specified alternatively below. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* Major Contributor(s):
* Copyright (C) 2002 William Lachance (wrlach@gmail.com)
* Copyright (C) 2002,2004 Marc Maurer (uwog@uwog.net)
* Copyright (C) 2004-2006 Fridrich Strba (fridrich.strba@bluewin.ch)
* Copyright (C) 2006, 2007 Andrew Ziem
* Copyright (C) 2011, 2012 Alonso Laurent (alonso@loria.fr)
*
*
* All Rights Reserved.
*
* For minor contributions see the git repository.
*
* Alternatively, the contents of this file may be used under the terms of
* the GNU Lesser General Public License Version 2 or later (the "LGPLv2+"),
* in which case the provisions of the LGPLv2+ are applicable
* instead of those above.
*/
#ifndef MWAW_PRESENTATION_LISTENER_H
#define MWAW_PRESENTATION_LISTENER_H
#include <vector>
#include <librevenge/librevenge.h>
#include "libmwaw_internal.hxx"
#include "MWAWGraphicStyle.hxx"
#include "MWAWListener.hxx"
class MWAWGraphicShape;
namespace MWAWPresentationListenerInternal
{
struct GraphicState;
struct State;
}
/** This class contains code needed to write a presention document.
\note All units are specified in librevenge::RVNG_POINT
*/
class MWAWPresentationListener final : public MWAWListener
{
public:
/** constructor */
MWAWPresentationListener(MWAWParserState &parserState, std::vector<MWAWPageSpan> const &pageList, librevenge::RVNGPresentationInterface *documentInterface);
/** destructor */
~MWAWPresentationListener() final;
/** returns the listener type */
Type getType() const final
{
return Presentation;
}
/** sets the documents metadata */
void setDocumentMetaData(librevenge::RVNGPropertyList const &metadata) final;
/** sets the documents language */
void setDocumentLanguage(std::string const &locale) final;
/** starts a new document */
void startDocument() final;
/** ends the actual document */
void endDocument(bool delayed=true) final;
// ------ general information --------
/** returns true if a text zone is opened */
bool canWriteText() const final;
/** returns true if a document is opened */
bool isDocumentStarted() const final;
/** function called to add a subdocument and modify the origin*/
void handleSubDocument(MWAWVec2f const &orig, MWAWSubDocumentPtr const &subDocument, libmwaw::SubDocumentType subDocumentType);
/** function called to add a subdocument */
void handleSubDocument(MWAWSubDocumentPtr const &subDocument, libmwaw::SubDocumentType subDocumentType) final
{
handleSubDocument(MWAWVec2f(0,0), subDocument, subDocumentType);
}
/** returns try if a subdocument is open */
bool isSubDocumentOpened(libmwaw::SubDocumentType &subdocType) const final;
/** store the position and the style (which will be needed further to insert a textbox or a table with openTable) */
bool openFrame(MWAWPosition const &pos, MWAWGraphicStyle const &style=MWAWGraphicStyle::emptyStyle()) final;
/** close a frame */
void closeFrame() final;
/** open a group */
bool openGroup(MWAWPosition const &pos) final;
/** close a group */
void closeGroup() final;
/** open a layer */
bool openLayer(librevenge::RVNGString const &name);
/** close a layer */
void closeLayer();
// ------ page --------
/** opens a master page */
bool openMasterPage(MWAWPageSpan &masterPage);
/** close a master page */
void closeMasterPage()
{
_closePageSpan(true);
}
/** returns true if a page is opened */
bool isPageSpanOpened() const final;
/** returns the current page span
\note this forces the opening of a new page if no page is opened.*/
MWAWPageSpan const &getPageSpan() final;
// ------ header/footer --------
/** insert a header */
bool insertHeader(MWAWSubDocumentPtr const &subDocument, librevenge::RVNGPropertyList const &extras) final;
/** insert a footer */
bool insertFooter(MWAWSubDocumentPtr const &subDocument, librevenge::RVNGPropertyList const &extras) final;
/** returns true if the header/footer is open */
bool isHeaderFooterOpened() const final;
// ------ text data -----------
//! adds a basic character, ..
void insertChar(uint8_t character) final;
/** insert a character using the font converter to find the utf8
character */
void insertCharacter(unsigned char c) final;
/** insert a character using the font converter to find the utf8
character and if needed, input to read extra character.
\return the number of extra character read
*/
int insertCharacter(unsigned char c, MWAWInputStreamPtr &input, long endPos=-1) final;
/** adds an unicode character.
* By convention if \a character=0xfffd(undef), no character is added */
void insertUnicode(uint32_t character) final;
//! adds a unicode string
void insertUnicodeString(librevenge::RVNGString const &str) final;
//! adds a tab
void insertTab() final;
//! adds an end of line ( by default an hard one)
void insertEOL(bool softBreak=false) final;
// ------ text format -----------
//! sets the font
void setFont(MWAWFont const &font) final;
//! returns the actual font
MWAWFont const &getFont() const final;
// ------ paragraph format -----------
//! returns true if a paragraph or a list is opened
bool isParagraphOpened() const final;
//! sets the paragraph
void setParagraph(MWAWParagraph const ¶graph) final;
//! returns the actual paragraph
MWAWParagraph const &getParagraph() const final;
// ------- fields ----------------
//! adds a field type
void insertField(MWAWField const &field) final;
// ------- link ----------------
//! open a link
void openLink(MWAWLink const &link) final;
//! close a link
void closeLink() final;
// ------- subdocument -----------------
/** adds a picture with potential various representationin given position */
void insertPicture(MWAWPosition const &pos, MWAWEmbeddedObject const &picture,
MWAWGraphicStyle const &style=MWAWGraphicStyle::emptyStyle()) final;
/** adds a shape picture in given position */
void insertShape(MWAWPosition const &pos, MWAWGraphicShape const &shape, MWAWGraphicStyle const &style) final;
/** adds a textbox in given position */
void insertTextBox(MWAWPosition const &pos, MWAWSubDocumentPtr const &subDocument, MWAWGraphicStyle const &style) final;
/** adds a group: ie. next insertion will be done relative to this bdbox[0] position */
void insertGroup(MWAWBox2f const &bdbox, MWAWSubDocumentPtr const &subDocument);
/** insert a slide note */
void insertSlideNote(MWAWPosition const &pos, MWAWSubDocumentPtr &subDocument);
/** insert a note
\note as RVNGPresentationInterface does not accept note, note can only be inserted in a text zone (and are inserted between --) */
void insertNote(MWAWNote const ¬e, MWAWSubDocumentPtr &subDocument) final;
/** adds comment
\note as RVNGPresentationInterface does not accept comment, comment can only be inserted in a text zone (and are inserted between --) */
void insertComment(MWAWSubDocumentPtr &subDocument) final;
// ------- table -----------------
/** adds a table in given position */
void insertTable(MWAWPosition const &pos, MWAWTable &table, MWAWGraphicStyle const &style=MWAWGraphicStyle::emptyStyle());
/** open a table (using the last parameters of openFrame for the position ) */
void openTable(MWAWTable const &table) final;
/** open a table in a given position */
void openTable(MWAWPosition const &pos, MWAWTable const &table, MWAWGraphicStyle const &style);
/** closes this table */
void closeTable() final;
/** open a row with given height ( if h < 0.0, set min-row-height = -h )*/
void openTableRow(float h, librevenge::RVNGUnit unit, bool headerRow=false) final;
/** closes this row */
void closeTableRow() final;
/** open a cell */
void openTableCell(MWAWCell const &cell) final;
/** close a cell */
void closeTableCell() final;
/** add empty cell */
void addEmptyTableCell(MWAWVec2i const &pos, MWAWVec2i span=MWAWVec2i(1,1)) final;
// ------- section ---------------
/** returns true if we can add open a section, add page break, ... */
bool canOpenSectionAddBreak() const final
{
return false;
}
//! returns true if a section is opened
bool isSectionOpened() const final
{
return false;
}
//! returns the actual section
MWAWSection const &getSection() const final;
//! open a section if possible
bool openSection(MWAWSection const §ion) final;
//! close a section
bool closeSection() final
{
return false;
}
//! inserts a break type: ColumBreak, PageBreak, ..
void insertBreak(BreakType breakType) final;
protected:
//! does open a new page (low level)
void _openPageSpan(bool sendHeaderFooters=true);
//! does close a page (low level)
void _closePageSpan(bool masterPage=false);
void _startSubDocument();
void _endSubDocument();
/** adds in propList the frame parameters.
\note if there is some gradient, first draw a rectangle to print the gradient and them update propList */
void _handleFrameParameters(librevenge::RVNGPropertyList &propList, MWAWPosition const &pos, MWAWGraphicStyle const &style);
void _openParagraph();
void _closeParagraph();
void _resetParagraphState(const bool isListElement=false);
/** open a list level */
void _openListElement();
/** close a list level */
void _closeListElement();
/** update the list so that it corresponds to the actual level */
void _changeList();
/** low level: find a list id which corresponds to actual list and a change of level.
\note called when the list id is not set
*/
int _getListId() const;
void _openSpan();
void _closeSpan();
void _flushText();
/** creates a new parsing state (copy of the actual state)
*
* \return the old one */
std::shared_ptr<MWAWPresentationListenerInternal::State> _pushParsingState();
//! resets the previous parsing state
void _popParsingState();
protected:
//! the actual global state
std::shared_ptr<MWAWPresentationListenerInternal::GraphicState> m_ds;
//! the actual local parse state
std::shared_ptr<MWAWPresentationListenerInternal::State> m_ps;
//! stack of local state
std::vector<std::shared_ptr<MWAWPresentationListenerInternal::State> > m_psStack;
//! the parser state
MWAWParserState &m_parserState;
//! the document interface
librevenge::RVNGPresentationInterface *m_documentInterface;
private:
MWAWPresentationListener(const MWAWPresentationListener &) = delete;
MWAWPresentationListener &operator=(const MWAWPresentationListener &) = delete;
};
#endif
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