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qgsloadstylefromdbdialog.cpp
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qgsloadstylefromdbdialog.cpp
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/***************************************************************************
qgsloadstylefromdbdialog.cpp
---------------------
begin : April 2013
copyright : (C) 2013 by Emilio Loi
email : loi at faunalia dot it
***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "qgsloadstylefromdbdialog.h"
#include "qgslogger.h"
#include "qgisapp.h"
#include <QSettings>
#include <QMessageBox>
#include <QVector>
QgsLoadStyleFromDBDialog::QgsLoadStyleFromDBDialog( QWidget *parent )
: QDialog( parent )
, mSectionLimit( 0 )
{
setupUi( this );
setWindowTitle( QStringLiteral( "Database styles manager" ) );
mSelectedStyleId = QLatin1String( "" );
mSelectedStyleName = QLatin1String( "" );
mLoadButton->setDisabled( true );
mDeleteButton->setDisabled( true );
mRelatedTable->setEditTriggers( QTableWidget::NoEditTriggers );
mRelatedTable->horizontalHeader()->setStretchLastSection( true );
mRelatedTable->setSelectionBehavior( QTableWidget::SelectRows );
mRelatedTable->verticalHeader()->setVisible( false );
mOthersTable->setEditTriggers( QTableWidget::NoEditTriggers );
mOthersTable->horizontalHeader()->setStretchLastSection( true );
mOthersTable->setSelectionBehavior( QTableWidget::SelectRows );
mOthersTable->verticalHeader()->setVisible( false );
connect( mRelatedTable, SIGNAL( itemSelectionChanged() ), this, SLOT( relatedTableSelectionChanged() ) );
connect( mOthersTable, SIGNAL( itemSelectionChanged() ), this, SLOT( otherTableSelectionChanged() ) );
connect( mRelatedTable, SIGNAL( doubleClicked( QModelIndex ) ), this, SLOT( accept() ) );
connect( mOthersTable, SIGNAL( doubleClicked( QModelIndex ) ), this, SLOT( accept() ) );
connect( mCancelButton, SIGNAL( clicked() ), this, SLOT( reject() ) );
connect( mDeleteButton, SIGNAL( clicked() ), this, SLOT( deleteStyleFromDB() ) );
connect( mLoadButton, SIGNAL( clicked() ), this, SLOT( accept() ) );
setTabOrder( mRelatedTable, mOthersTable );
setTabOrder( mOthersTable, mCancelButton );
setTabOrder( mCancelButton, mDeleteButton );
setTabOrder( mDeleteButton, mLoadButton );
QSettings settings;
restoreGeometry( settings.value( QStringLiteral( "/Windows/loadStyleFromDb/geometry" ) ).toByteArray() );
}
QgsLoadStyleFromDBDialog::~QgsLoadStyleFromDBDialog()
{
QSettings settings;
settings.setValue( QStringLiteral( "/Windows/loadStyleFromDb/geometry" ), saveGeometry() );
}
void QgsLoadStyleFromDBDialog::initializeLists( const QStringList& ids, const QStringList& names, const QStringList& descriptions, int sectionLimit )
{
mSectionLimit = sectionLimit;
int relatedTableNOfCols = sectionLimit > 0 ? 2 : 1;
int othersTableNOfCols = ids.count() - sectionLimit > 0 ? 2 : 1;
QString twoColsHeader( QStringLiteral( "Name;Description" ) );
QString oneColsHeader( QStringLiteral( "No styles found in the database" ) );
QString relatedTableHeader = relatedTableNOfCols == 1 ? oneColsHeader : twoColsHeader;
QString othersTableHeader = othersTableNOfCols == 1 ? oneColsHeader : twoColsHeader;
mRelatedTable->setColumnCount( relatedTableNOfCols );
mOthersTable->setColumnCount( othersTableNOfCols );
mRelatedTable->setHorizontalHeaderLabels( relatedTableHeader.split( ';' ) );
mOthersTable->setHorizontalHeaderLabels( othersTableHeader.split( ';' ) );
mRelatedTable->setRowCount( sectionLimit );
mOthersTable->setRowCount( ids.count() - sectionLimit );
mRelatedTable->setDisabled( relatedTableNOfCols == 1 );
mOthersTable->setDisabled( othersTableNOfCols == 1 );
for ( int i = 0; i < sectionLimit; i++ )
{
QTableWidgetItem *item = new QTableWidgetItem( names.value( i, QLatin1String( "" ) ) );
item->setData( Qt::UserRole, ids[i] );
mRelatedTable->setItem( i, 0, item );
mRelatedTable->setItem( i, 1, new QTableWidgetItem( descriptions.value( i, QLatin1String( "" ) ) ) );
}
for ( int i = sectionLimit; i < ids.count(); i++ )
{
int j = i - sectionLimit;
QTableWidgetItem *item = new QTableWidgetItem( names.value( i, QLatin1String( "" ) ) );
item->setData( Qt::UserRole, ids[i] );
mOthersTable->setItem( j, 0, item );
mOthersTable->setItem( j, 1, new QTableWidgetItem( descriptions.value( i, QLatin1String( "" ) ) ) );
}
}
QString QgsLoadStyleFromDBDialog::getSelectedStyleId()
{
return mSelectedStyleId;
}
void QgsLoadStyleFromDBDialog::setLayer( QgsVectorLayer *l )
{
mLayer = l;
if ( mLayer->dataProvider()->isDeleteStyleFromDBSupported() )
{
//QgsDebugMsg( "QgsLoadStyleFromDBDialog::setLayer → The dataProvider supports isDeleteStyleFromDBSupported" );
mDeleteButton->setVisible( true );
}
else
{
// QgsDebugMsg( "QgsLoadStyleFromDBDialog::setLayer → The dataProvider does not supports isDeleteStyleFromDBSupported" );
mDeleteButton->setVisible( false );
}
}
void QgsLoadStyleFromDBDialog::relatedTableSelectionChanged()
{
selectionChanged( mRelatedTable );
//deselect any other row on the other table widget
QTableWidgetSelectionRange range( 0, 0, mOthersTable->rowCount() - 1, mOthersTable->columnCount() - 1 );
mOthersTable->setRangeSelected( range, false );
}
void QgsLoadStyleFromDBDialog::otherTableSelectionChanged()
{
selectionChanged( mOthersTable );
//deselect any other row on the other table widget
QTableWidgetSelectionRange range( 0, 0, mRelatedTable->rowCount() - 1, mRelatedTable->columnCount() - 1 );
mRelatedTable->setRangeSelected( range, false );
}
void QgsLoadStyleFromDBDialog::selectionChanged( QTableWidget *styleTable )
{
QTableWidgetItem *item;
QList<QTableWidgetItem *> selected = styleTable->selectedItems();
if ( selected.count() > 0 )
{
item = selected.at( 0 );
mSelectedStyleName = item->text();
mSelectedStyleId = item->data( Qt::UserRole ).toString();
mLoadButton->setEnabled( true );
mDeleteButton->setEnabled( true );
}
else
{
mSelectedStyleName = "";
mSelectedStyleId = "";
mLoadButton->setEnabled( false );
mDeleteButton->setEnabled( false );
}
}
void QgsLoadStyleFromDBDialog::deleteStyleFromDB()
{
QString uri, msgError;
QString opInfo = QObject::tr( "Delete style %1 from %2" ).arg( mSelectedStyleName, mLayer->providerType() );
if ( QMessageBox::question( nullptr, QObject::tr( "Delete style" ),
QObject::tr( "Are you sure you want to delete the style %1?" ).arg( mSelectedStyleName ),
QMessageBox::Yes | QMessageBox::No, QMessageBox::No ) != QMessageBox::Yes )
return;
uri = mLayer->dataProvider()->dataSourceUri();
// mLayer->dataProvider()->deleteStyleById( uri, mSelectedStyleId, msgError );
mLayer->deleteStyleFromDatabase( mSelectedStyleId, msgError );
if ( !msgError.isNull() )
{
QgsDebugMsg( opInfo + " failed." );
QgisApp::instance()->messageBar()->pushMessage( opInfo , tr( "%1: fail. %2" ).arg( opInfo, msgError ), QgsMessageBar::WARNING, QgisApp::instance()->messageTimeout() );
}
else
{
QgisApp::instance()->messageBar()->pushMessage( opInfo , tr( "%1: success" ).arg( opInfo ), QgsMessageBar::INFO, QgisApp::instance()->messageTimeout() );
//Delete all rows from the UI table widgets
mRelatedTable->setRowCount( 0 );
mOthersTable->setRowCount( 0 );
//Fill UI widgets again from DB. Other users might have change the styles meanwhile.
QString errorMsg;
QStringList ids, names, descriptions;
//get the list of styles in the db
int sectionLimit = mLayer->listStylesInDatabase( ids, names, descriptions, errorMsg );
if ( !errorMsg.isNull() )
{
QgisApp::instance()->messageBar()->pushMessage( tr( "Error occurred retrieving styles from database" ), errorMsg, QgsMessageBar::WARNING, QgisApp::instance()->messageTimeout() );
}
else
{
initializeLists( ids, names, descriptions, sectionLimit );
}
}
}