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tdepim/libkdepim/kimportdialog.cpp

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/*
This file is part of libkdepim.
Copyright (c) 2002 Cornelius Schumacher <schumacher@kde.org>
Copyright (c) 2002 Tobias Koenig <tokoe@kde.org>
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
Boston, MA 02110-1301, USA.
*/
// Generic CSV import. Please do not add application specific code to this
// class. Application specific code should go to a subclass provided by the
// application using this dialog.
#include <tqbuttongroup.h>
#include <tqfile.h>
#include <tqlabel.h>
#include <tqlayout.h>
#include <tqlineedit.h>
#include <tqlistview.h>
#include <tqradiobutton.h>
#include <tqregexp.h>
#include <tqtable.h>
#include <tqtextstream.h>
#include <tqvbox.h>
#include <kapplication.h>
#include <kdebug.h>
#include <kcombobox.h>
#include <kinputdialog.h>
#include <klineedit.h>
#include <klocale.h>
#include <kprogress.h>
#include <ksimpleconfig.h>
#include <kstandarddirs.h>
#include <kurlrequester.h>
#include <kfiledialog.h>
#include "kimportdialog.h"
#include "kimportdialog.moc"
KImportColumn::KImportColumn(KImportDialog *dlg,const TQString &header, int count)
: m_maxCount(count),
m_refCount(0),
m_header(header),
mDialog(dlg)
{
mFormats.append(FormatPlain);
mFormats.append(FormatUnquoted);
// mFormats.append(FormatBracketed);
mDefaultFormat = FormatUnquoted;
mDialog->addColumn(this);
}
TQValueList<int> KImportColumn::formats()
{
return mFormats;
}
TQString KImportColumn::formatName(int format)
{
switch (format) {
case FormatPlain:
return i18n("Plain");
case FormatUnquoted:
return i18n("Unquoted");
case FormatBracketed:
return i18n("Bracketed");
default:
return i18n("Undefined");
}
}
int KImportColumn::defaultFormat()
{
return mDefaultFormat;
}
TQString KImportColumn::preview(const TQString &value, int format)
{
if (format == FormatBracketed) {
return "(" + value + ")";
} else if (format == FormatUnquoted) {
if (value.left(1) == "\"" && value.right(1) == "\"") {
return value.mid(1,value.length()-2);
} else {
return value;
}
} else {
return value;
}
}
void KImportColumn::addColId(int id)
{
mColIds.append(id);
}
void KImportColumn::removeColId(int id)
{
mColIds.remove(id);
}
TQValueList<int> KImportColumn::colIdList()
{
return mColIds;
}
TQString KImportColumn::convert()
{
TQValueList<int>::ConstIterator it = mColIds.begin();
if (it == mColIds.end()) return "";
else return mDialog->cell(*it);
}
class ColumnItem : public TQListViewItem {
public:
ColumnItem(KImportColumn *col,TQListView *parent) : TQListViewItem(parent), mColumn(col)
{
setText(0,mColumn->header());
}
KImportColumn *column() { return mColumn; }
private:
KImportColumn *mColumn;
};
/**
This is a generic class for importing line-oriented data from text files. It
provides a dialog for file selection, preview, separator selection and column
assignment as well as generic conversion routines. For conversion to special
data objects, this class has to be inherited by a special class, which
reimplements the convertRow() function.
*/
KImportDialog::KImportDialog(TQWidget* parent)
: KDialogBase(parent,"importdialog",true,i18n("Import Text File"),Ok|Cancel),
mSeparator(","),
mCurrentRow(0)
{
mData.setAutoDelete( true );
TQVBox *topBox = new TQVBox(this);
setMainWidget(topBox);
topBox->setSpacing(spacingHint());
TQHBox *fileBox = new TQHBox(topBox);
fileBox->setSpacing(spacingHint());
new TQLabel(i18n("File to import:"),fileBox);
KURLRequester *urlRequester = new KURLRequester(fileBox);
urlRequester->setFilter( "*.csv" );
connect(urlRequester,TQT_SIGNAL(returnPressed(const TQString &)),
TQT_SLOT(setFile(const TQString &)));
connect(urlRequester,TQT_SIGNAL(urlSelected(const TQString &)),
TQT_SLOT(setFile(const TQString &)));
connect(urlRequester->lineEdit(),TQT_SIGNAL(textChanged ( const TQString & )),
TQT_SLOT(slotUrlChanged(const TQString & )));
mTable = new TQTable(5,5,topBox);
mTable->setMinimumHeight( 150 );
connect(mTable,TQT_SIGNAL(selectionChanged()),TQT_SLOT(tableSelected()));
TQHBox *separatorBox = new TQHBox( topBox );
separatorBox->setSpacing( spacingHint() );
new TQLabel( i18n( "Separator:" ), separatorBox );
mSeparatorCombo = new KComboBox( separatorBox );
mSeparatorCombo->insertItem( "," );
mSeparatorCombo->insertItem( i18n( "Tab" ) );
mSeparatorCombo->insertItem( i18n( "Space" ) );
mSeparatorCombo->insertItem( "=" );
mSeparatorCombo->insertItem( ";" );
connect(mSeparatorCombo, TQT_SIGNAL( activated(int) ),
this, TQT_SLOT( separatorClicked(int) ) );
mSeparatorCombo->setCurrentItem( 0 );
TQHBox *rowsBox = new TQHBox( topBox );
rowsBox->setSpacing( spacingHint() );
new TQLabel( i18n( "Import starts at row:" ), rowsBox );
mStartRow = new TQSpinBox( rowsBox );
mStartRow->setMinValue( 1 );
/*
new TQLabel( i18n( "And ends at row:" ), rowsBox );
mEndRow = new TQSpinBox( rowsBox );
mEndRow->setMinValue( 1 );
*/
TQVBox *assignBox = new TQVBox(topBox);
assignBox->setSpacing(spacingHint());
TQHBox *listsBox = new TQHBox(assignBox);
listsBox->setSpacing(spacingHint());
mHeaderList = new TQListView(listsBox);
mHeaderList->addColumn(i18n("Header"));
connect(mHeaderList, TQT_SIGNAL(selectionChanged(TQListViewItem*)),
this, TQT_SLOT(headerSelected(TQListViewItem*)));
connect(mHeaderList,TQT_SIGNAL(doubleClicked(TQListViewItem*)),
TQT_SLOT(assignColumn(TQListViewItem *)));
mFormatCombo = new KComboBox( listsBox );
mFormatCombo->setDuplicatesEnabled( false );
TQPushButton *assignButton = new TQPushButton(i18n("Assign to Selected Column"),
assignBox);
connect(assignButton,TQT_SIGNAL(clicked()),TQT_SLOT(assignColumn()));
TQPushButton *removeButton = new TQPushButton(i18n("Remove Assignment From Selected Column"),
assignBox);
connect(removeButton,TQT_SIGNAL(clicked()),TQT_SLOT(removeColumn()));
TQPushButton *assignTemplateButton = new TQPushButton(i18n("Assign with Template..."),
assignBox);
connect(assignTemplateButton,TQT_SIGNAL(clicked()),TQT_SLOT(assignTemplate()));
TQPushButton *saveTemplateButton = new TQPushButton(i18n("Save Current Template"),
assignBox);
connect(saveTemplateButton,TQT_SIGNAL(clicked()),TQT_SLOT(saveTemplate()));
resize(500,300);
connect(this,TQT_SIGNAL(okClicked()),TQT_SLOT(applyConverter()));
connect(this,TQT_SIGNAL(applyClicked()),TQT_SLOT(applyConverter()));
enableButtonOK(!urlRequester->lineEdit()->text().isEmpty());
}
void KImportDialog::slotUrlChanged(const TQString & text)
{
enableButtonOK(!text.isEmpty());
}
bool KImportDialog::setFile(const TQString& file)
{
enableButtonOK(!file.isEmpty());
kdDebug(5300) << "KImportDialog::setFile(): " << file << endl;
TQFile f(file);
if (f.open(IO_ReadOnly)) {
mFile = "";
TQTextStream t(&f);
mFile = t.read();
// while (!t.eof()) mFile.append(t.readLine());
f.close();
readFile();
// mEndRow->setValue( mData.count() );
return true;
} else {
kdDebug(5300) << " Open failed" << endl;
return false;
}
}
void KImportDialog::registerColumns()
{
TQPtrListIterator<KImportColumn> colIt(mColumns);
for (; colIt.current(); ++colIt) {
new ColumnItem(*colIt,mHeaderList);
}
mHeaderList->setSelected(mHeaderList->firstChild(),true);
}
void KImportDialog::fillTable()
{
// kdDebug(5300) << "KImportDialog::fillTable()" << endl;
int row, column;
for (row = 0; row < mTable->numRows(); ++row)
for (column = 0; column < mTable->numCols(); ++column)
mTable->clearCell(row, column);
for ( row = 0; row < int(mData.count()); ++row ) {
TQValueVector<TQString> *rowVector = mData[ row ];
for( column = 0; column < int(rowVector->size()); ++column ) {
setCellText( row, column, rowVector->at( column ) );
}
}
}
void KImportDialog::readFile( int rows )
{
kdDebug(5300) << "KImportDialog::readFile(): " << rows << endl;
mData.clear();
int row, column;
enum { S_START, S_QUOTED_FIELD, S_MAYBE_END_OF_QUOTED_FIELD, S_END_OF_QUOTED_FIELD,
S_MAYBE_NORMAL_FIELD, S_NORMAL_FIELD } state = S_START;
TQChar m_textquote = '"';
int m_startline = 0;
TQChar x;
TQString field = "";
row = column = 0;
TQTextStream inputStream(mFile, IO_ReadOnly);
inputStream.setEncoding(TQTextStream::Locale);
KProgressDialog pDialog(this, 0, i18n("Loading Progress"),
i18n("Please wait while the file is loaded."), true);
pDialog.setAllowCancel(true);
pDialog.showCancelButton(true);
pDialog.setAutoClose(true);
KProgress *progress = pDialog.progressBar();
progress->setTotalSteps( mFile.contains(mSeparator, false) );
progress->setValue(0);
int progressValue = 0;
if (progress->totalSteps() > 0) // We have data
pDialog.show();
while (!inputStream.atEnd() && !pDialog.wasCancelled()) {
inputStream >> x; // read one char
// update the dialog if needed
if (x == mSeparator)
{
progress->setValue(progressValue++);
if (progressValue % 15 == 0) // try not to constantly repaint
kapp->processEvents();
}
if (x == '\r') inputStream >> x; // eat '\r', to handle DOS/LOSEDOWS files correctly
switch (state) {
case S_START :
if (x == m_textquote) {
field += x;
state = S_QUOTED_FIELD;
} else if (x == mSeparator) {
++column;
} else if (x == '\n') {
++row;
column = 0;
} else {
field += x;
state = S_MAYBE_NORMAL_FIELD;
}
break;
case S_QUOTED_FIELD :
if (x == m_textquote) {
field += x;
state = S_MAYBE_END_OF_QUOTED_FIELD;
} else if (x == '\n') {
setData(row - m_startline, column, field);
field = "";
if (x == '\n') {
++row;
column = 0;
} else {
++column;
}
state = S_START;
} else {
field += x;
}
break;
case S_MAYBE_END_OF_QUOTED_FIELD :
if (x == m_textquote) {
field += x;
state = S_QUOTED_FIELD;
} else if (x == mSeparator || x == '\n') {
setData(row - m_startline, column, field);
field = "";
if (x == '\n') {
++row;
column = 0;
} else {
++column;
}
state = S_START;
} else {
state = S_END_OF_QUOTED_FIELD;
}
break;
case S_END_OF_QUOTED_FIELD :
if (x == mSeparator || x == '\n') {
setData(row - m_startline, column, field);
field = "";
if (x == '\n') {
++row;
column = 0;
} else {
++column;
}
state = S_START;
} else {
state = S_END_OF_QUOTED_FIELD;
}
break;
case S_MAYBE_NORMAL_FIELD :
if (x == m_textquote) {
field = "";
state = S_QUOTED_FIELD;
}
case S_NORMAL_FIELD :
if (x == mSeparator || x == '\n') {
setData(row - m_startline, column, field);
field = "";
if (x == '\n') {
++row;
column = 0;
} else {
++column;
}
state = S_START;
} else {
field += x;
}
}
if ( rows > 0 && row > rows ) break;
}
fillTable();
}
void KImportDialog::setCellText(int row, int col, const TQString& text)
{
if (row < 0) return;
if ((mTable->numRows() - 1) < row) mTable->setNumRows(row + 1);
if ((mTable->numCols() - 1) < col) mTable->setNumCols(col + 1);
KImportColumn *c = mColumnDict.find(col);
TQString formattedText;
if (c) formattedText = c->preview(text,findFormat(col));
else formattedText = text;
mTable->setText(row, col, formattedText);
}
void KImportDialog::formatSelected(TQListViewItem*)
{
// kdDebug(5300) << "KImportDialog::formatSelected()" << endl;
}
void KImportDialog::headerSelected(TQListViewItem* item)
{
KImportColumn *col = ((ColumnItem *)item)->column();
if (!col) return;
mFormatCombo->clear();
TQValueList<int> formats = col->formats();
TQValueList<int>::ConstIterator it = formats.begin();
TQValueList<int>::ConstIterator end = formats.end();
while(it != end) {
mFormatCombo->insertItem( col->formatName(*it), *it - 1 );
++it;
}
TQTableSelection selection = mTable->selection(mTable->currentSelection());
updateFormatSelection(selection.leftCol());
}
void KImportDialog::updateFormatSelection(int column)
{
int format = findFormat(column);
if ( format == KImportColumn::FormatUndefined )
mFormatCombo->setCurrentItem( 0 );
else
mFormatCombo->setCurrentItem( format - 1 );
}
void KImportDialog::tableSelected()
{
TQTableSelection selection = mTable->selection(mTable->currentSelection());
TQListViewItem *item = mHeaderList->firstChild();
KImportColumn *col = mColumnDict.find(selection.leftCol());
if (col) {
while(item) {
if (item->text(0) == col->header()) {
break;
}
item = item->nextSibling();
}
}
if (item) {
mHeaderList->setSelected(item,true);
}
updateFormatSelection(selection.leftCol());
}
void KImportDialog::separatorClicked(int id)
{
switch(id) {
case 0:
mSeparator = ',';
break;
case 1:
mSeparator = '\t';
break;
case 2:
mSeparator = ' ';
break;
case 3:
mSeparator = '=';
break;
case 4:
mSeparator = ';';
break;
default:
mSeparator = ',';
break;
}
readFile();
}
void KImportDialog::assignColumn(TQListViewItem *item)
{
if (!item) return;
// kdDebug(5300) << "KImportDialog::assignColumn(): current Col: " << mTable->currentColumn()
// << endl;
ColumnItem *colItem = (ColumnItem *)item;
TQTableSelection selection = mTable->selection(mTable->currentSelection());
// kdDebug(5300) << " l: " << selection.leftCol() << " r: " << selection.rightCol() << endl;
for(int i=selection.leftCol();i<=selection.rightCol();++i) {
if (i >= 0) {
mTable->horizontalHeader()->setLabel(i,colItem->text(0));
mColumnDict.replace(i,colItem->column());
int format = mFormatCombo->currentItem() + 1;
mFormats.replace(i,format);
colItem->column()->addColId(i);
}
}
readFile();
}
void KImportDialog::assignColumn()
{
assignColumn(mHeaderList->currentItem());
}
void KImportDialog::assignTemplate()
{
TQMap<uint,int> columnMap;
TQMap<TQString, TQString> fileMap;
TQStringList templates;
// load all template files
TQStringList list = KGlobal::dirs()->findAllResources( "data" , TQString( kapp->name() ) +
"/csv-templates/*.desktop", true, true );
for ( TQStringList::iterator it = list.begin(); it != list.end(); ++it )
{
KSimpleConfig config( *it, true );
if ( !config.hasGroup( "csv column map" ) )
continue;
config.setGroup( "Misc" );
templates.append( config.readEntry( "Name" ) );
fileMap.insert( config.readEntry( "Name" ), *it );
}
// let the user chose, what to take
bool ok = false;
TQString tmp;
tmp = KInputDialog::getItem( i18n( "Template Selection" ),
i18n( "Please select a template, that matches the CSV file:" ),
templates, 0, false, &ok, this );
if ( !ok )
return;
KSimpleConfig config( fileMap[ tmp ], true );
config.setGroup( "General" );
uint numColumns = config.readUnsignedNumEntry( "Columns" );
int format = config.readNumEntry( "Format" );
// create the column map
config.setGroup( "csv column map" );
for ( uint i = 0; i < numColumns; ++i ) {
int col = config.readNumEntry( TQString::number( i ) );
columnMap.insert( i, col );
}
// apply the column map
for ( uint i = 0; i < columnMap.count(); ++i ) {
int tableColumn = columnMap[i];
if ( tableColumn == -1 )
continue;
KImportColumn *col = mColumns.at(i);
mTable->horizontalHeader()->setLabel( tableColumn, col->header() );
mColumnDict.replace( tableColumn, col );
mFormats.replace( tableColumn, format );
col->addColId( tableColumn );
}
readFile();
}
void KImportDialog::removeColumn()
{
TQTableSelection selection = mTable->selection(mTable->currentSelection());
// kdDebug(5300) << " l: " << selection.leftCol() << " r: " << selection.rightCol() << endl;
for(int i=selection.leftCol();i<=selection.rightCol();++i) {
if (i >= 0) {
mTable->horizontalHeader()->setLabel(i,TQString::number(i+1));
KImportColumn *col = mColumnDict.find(i);
if (col) {
mColumnDict.remove(i);
mFormats.remove(i);
col->removeColId(i);
}
}
}
readFile();
}
void KImportDialog::applyConverter()
{
kdDebug(5300) << "KImportDialog::applyConverter" << endl;
KProgressDialog pDialog(this, 0, i18n("Importing Progress"),
i18n("Please wait while the data is imported."), true);
pDialog.setAllowCancel(true);
pDialog.showCancelButton(true);
pDialog.setAutoClose(true);
KProgress *progress = pDialog.progressBar();
progress->setTotalSteps( mTable->numRows()-1 );
progress->setValue(0);
readFile( 0 );
pDialog.show();
for( uint i = mStartRow->value() - 1; i < mData.count() && !pDialog.wasCancelled(); ++i ) {
mCurrentRow = i;
progress->setValue(i);
if (i % 5 == 0) // try to avoid constantly processing events
kapp->processEvents();
convertRow();
}
}
int KImportDialog::findFormat(int column)
{
TQMap<int,int>::ConstIterator formatIt = mFormats.find(column);
int format;
if (formatIt == mFormats.end()) format = KImportColumn::FormatUndefined;
else format = *formatIt;
// kdDebug(5300) << "KImportDialog::findformat(): " << column << ": " << format << endl;
return format;
}
TQString KImportDialog::cell(uint col)
{
if ( col >= mData[ mCurrentRow ]->size() ) return "";
else return data( mCurrentRow, col );
}
void KImportDialog::addColumn(KImportColumn *col)
{
mColumns.append(col);
}
void KImportDialog::setData( uint row, uint col, const TQString &value )
{
TQString val = value;
val.replace( "\\n", "\n" );
if ( row >= mData.count() ) {
mData.resize( row + 1 );
}
TQValueVector<TQString> *rowVector = mData[ row ];
if ( !rowVector ) {
rowVector = new TQValueVector<TQString>;
mData.insert( row, rowVector );
}
if ( col >= rowVector->size() ) {
rowVector->resize( col + 1 );
}
KImportColumn *c = mColumnDict.find( col );
if ( c )
rowVector->at( col ) = c->preview( val, findFormat(col) );
else
rowVector->at( col ) = val;
}
TQString KImportDialog::data( uint row, uint col )
{
return mData[ row ]->at( col );
}
void KImportDialog::saveTemplate()
{
TQString fileName = KFileDialog::getSaveFileName(
locateLocal( "data", TQString( kapp->name() ) + "/csv-templates/" ),
"*.desktop", this );
if ( fileName.isEmpty() )
return;
if ( !fileName.contains( ".desktop" ) )
fileName += ".desktop";
TQString name = KInputDialog::getText( i18n( "Template Name" ), i18n( "Please enter a name for the template:" ) );
if ( name.isEmpty() )
return;
KConfig config( fileName );
config.setGroup( "General" );
config.writeEntry( "Columns", mColumns.count() );
config.writeEntry( "Format", mFormatCombo->currentItem() + 1 );
config.setGroup( "Misc" );
config.writeEntry( "Name", name );
config.setGroup( "csv column map" );
KImportColumn *column;
uint counter = 0;
for ( column = mColumns.first(); column; column = mColumns.next() ) {
TQValueList<int> list = column->colIdList();
if ( list.count() > 0 )
config.writeEntry( TQString::number( counter ), list[ 0 ] );
else
config.writeEntry( TQString::number( counter ), -1 );
counter++;
}
config.sync();
}
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