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232 lines
8.6 KiB
232 lines
8.6 KiB
/* This file is part of the KDE project
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Copyright (C) 2005-2006 Jaroslaw Staniek <js@iidea.pl>
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This work is based on kspread/dialogs/kspread_dlg_csv.cc
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and will be merged back with KOffice libraries.
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Copyright (C) 2002-2003 Norbert Andres <nandres@web.de>
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Copyright (C) 2002-2003 Ariya Hidayat <ariya@kde.org>
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Copyright (C) 2002 Laurent Montel <montel@kde.org>
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Copyright (C) 1999 David Faure <faure@kde.org>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library 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 GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef KEXI_CSVDIALOG_H
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#define KEXI_CSVDIALOG_H
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#include <qvaluevector.h>
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#include <qvaluelist.h>
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#include <qptrvector.h>
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#include <qregexp.h>
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#include <qbitarray.h>
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#include <kdialogbase.h>
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#include <kexiutils/tristate.h>
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#include <kexidb/connection.h>
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#include "kexicsvimportoptionsdlg.h"
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class QVBoxLayout;
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class QHBoxLayout;
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class QGridLayout;
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class QButtonGroup;
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class QCheckBox;
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class QLabel;
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class QLineEdit;
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class QPushButton;
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class QRadioButton;
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class QTable;
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class QFile;
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class KComboBox;
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class KIntSpinBox;
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class KProgressDialog;
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class KexiMainWindow;
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class KexiCSVDelimiterWidget;
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class KexiCSVTextQuoteComboBox;
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class KexiCSVInfoLabel;
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/**
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* @short Kexi CSV import dialog
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*
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* This is temporary solution for Kexi CSV import,
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* based on kspread/dialogs/kspread_dlg_csv.h, cc.
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*
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* Provides dialog for managing CSV (comma separated value) data.
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*
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* Currently KexiCSVImportDialog is used for converting text into columns,
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* inserting text file and pasting text from clipboard, where conversion
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* from CSV (comma separated value) data is is all required.
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* The different purposed mentioned above is determined
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* using mode, which can be Column, File, or Clipboard respectively.
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*/
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class KexiCSVImportDialog : public KDialogBase
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{
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Q_OBJECT
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public:
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enum Mode { Clipboard, File /*, Column*/ };
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enum Header { TEXT, NUMBER, DATE, CURRENCY };
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//! @todo what about making it kexidb-independent?
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KexiCSVImportDialog( Mode mode, KexiMainWindow* mainWin, QWidget * parent,
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const char * name = 0/*, QRect const & rect*/);
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virtual ~KexiCSVImportDialog();
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bool cancelled() const;
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virtual bool eventFilter ( QObject * watched, QEvent * e );
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protected:
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bool openData();
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virtual void accept();
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private:
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QGridLayout* MyDialogLayout;
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QHBoxLayout* Layout1;
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QTable* m_table;
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KexiCSVDelimiterWidget* m_delimiterWidget;
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bool m_detectDelimiter; //!< true if delimiter should be detected
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//!< (true by default, set to false if user sets delimiter)
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QString m_formatComboText;
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QLabel* m_formatLabel;
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KComboBox* m_formatCombo;
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KIntSpinBox *m_startAtLineSpinBox;
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KexiCSVTextQuoteComboBox* m_comboQuote;
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QLabel* m_startAtLineLabel;
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QLabel* TextLabel2;
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QCheckBox* m_ignoreDuplicates;
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QCheckBox* m_1stRowForFieldNames;
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QCheckBox* m_primaryKeyField;
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KexiMainWindow* m_mainWin;
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void detectTypeAndUniqueness(int row, int col, const QString& text);
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void setText(int row, int col, const QString& text, bool inGUI);
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/*! Parses date from \a text and stores into \a date.
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m_dateRegExp is used for clever detection;
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if '/' separated is found, it's assumed the format is american mm/dd/yyyy.
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This function supports omitted zeros, so 1/2/2006 is parsed properly too.
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\return true on success. */
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bool parseDate(const QString& text, QDate& date);
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/*! Parses time from \a text and stores into \a date.
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m_timeRegExp1 and m_timeRegExp2 are used for clever detection;
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both hh:mm:ss and hh:mm are supported.
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This function supports omitted zeros, so 1:2:3 is parsed properly too.
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\return true on success. */
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bool parseTime(const QString& text, QTime& time);
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/*! Called after the first fillTable() when number of rows is unknown. */
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void adjustRows(int iRows);
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int getHeader(int col);
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QString getText(int row, int col);
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void updateColumnText(int col);
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void updateRowCountInfo();
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tristate loadRows(QString &field, int &row, int &columnm, int &maxColumn, bool inGUI);
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/*! Detects delimiter by looking at first 4K bytes of the data. Used by loadRows().
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The used algorithm:
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1. Look byte by byte and locate special characters that can be delimiters.
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Special fact is taken into account: if there are '"' quotes used for text values,
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delimiters that follow directly the closing quote has higher priority than the one
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that follows other character. We do not assume that every text value is quoted.
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Summing up, there is following hierarchy (from highest to lowest):
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quote+tab, quote+semicolon, quote+comma, tab, semicolon, comma.
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Space characters are skipped. Text inside quotes is skipped, as well as double
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(escaped) quotes.
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2. While scanning the data, for every row following number of tabs, semicolons and commas
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(only these outside of the quotes) are computed. On every line the values are appended
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to a separate list (QValueList<int>).
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3. After scanning, all the values are checked on the QValueList<int> of tabs.
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If the list has more one element (so there was more than one row) and all the values
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(numbers of tabs) are equal, it's very probable the tab is a delimiter.
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So, this character is returned as a delimiter.
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3a. The same algorithm as in 3. is performed for semicolon character.
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3b. The same algorithm as in 3. is performed for comma character.
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4. If the step 3. did not return a delimiter, a character found in step 1. with
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the highest priority is retured as delimiter. */
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QString detectDelimiterByLookingAtFirstBytesOfFile(QTextStream& inputStream);
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/*! Callback, called whenever row is loaded in loadRows(). When inGUI is true,
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nothing is performed, else database buffer is written back to the database. */
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bool saveRow(bool inGUI);
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bool m_cancelled;
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bool m_adjustRows;
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int m_startline;
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QChar m_textquote;
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QString m_clipboardData;
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QByteArray m_fileArray;
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Mode m_mode;
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int m_prevSelectedCol;
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//! vector of detected types, 0==text (the default), 1==number, 2==date
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//! @todo more types
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QValueVector<int> m_detectedTypes;
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//! m_detectedUniqueColumns[i]==true means that i-th column has unique values
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//! (only for numeric type)
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QPtrVector< QValueList<int> > m_uniquenessTest;
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QRegExp m_dateRegExp, m_timeRegExp1, m_timeRegExp2, m_fpNumberRegExp;
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QValueVector<QString> m_typeNames, m_columnNames;
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QBitArray m_changedColumnNames;
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bool m_columnsAdjusted : 1; //!< to call adjustColumn() only once
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bool m_1stRowForFieldNamesDetected : 1; //!< used to force rerun fillTable() after 1st row
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bool m_firstFillTableCall : 1; //!< used to know whether it's 1st fillTable() call
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bool m_blockUserEvents : 1;
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int m_primaryKeyColumn; //!< index of column with PK assigned (-1 if none)
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int m_maximumRowsForPreview;
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int m_maximumBytesForPreview;
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QPixmap m_pkIcon;
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QString m_fname;
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QFile* m_file;
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QTextStream *m_inputStream; //!< used in loadData()
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KexiCSVImportOptions m_options;
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KProgressDialog *m_loadingProgressDlg, *m_importingProgressDlg;
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bool m_dialogCancelled;
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KexiCSVInfoLabel *m_infoLbl;
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KexiDB::Connection *m_conn; //!< (temp) database connection used for importing
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KexiDB::TableSchema *m_destinationTableSchema; //!< (temp) dest. table schema used for importing
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KexiDB::PreparedStatement::Ptr m_importingStatement;
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QValueList<QVariant> m_dbRowBuffer; //!< (temp) used for importing
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bool m_implicitPrimaryKeyAdded; //!< (temp) used for importing
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bool m_allRowsLoadedInPreview; //!< we need to know whether all rows were loaded or it's just a partial data preview
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bool m_stoppedAt_MAX_BYTES_TO_PREVIEW; //!< used to compute m_allRowsLoadedInPreview
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private slots:
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void fillTable();
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void fillTableLater();
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void initLater();
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void formatChanged(int id);
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void delimiterChanged(const QString& delimiter);
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void startlineSelected(int line);
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void textquoteSelected(int);
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void currentCellChanged(int, int col);
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void ignoreDuplicatesChanged(int);
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void slot1stRowForFieldNamesChanged(int);
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void cellValueChanged(int row,int col);
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void optionsButtonClicked();
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void slotPrimaryKeyFieldToggled(bool on);
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};
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#endif
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