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added functions to QgsStyleV2 for getting groups by id

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This commit is contained in:
Sebastian Dietrich 2016-01-01 16:05:22 +01:00
parent 17ed9d15fa
commit 95e571c3f8
3 changed files with 53 additions and 0 deletions
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8
python/core/symbology-ng/qgsstylev2.sip
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@ -127,6 +127,8 @@ class QgsStyleV2 : QObject
int symbolId( const QString& name );
//! return the DB id for the given group name
int groupId( const QString& group );
//! return the group name for the given DB id
QString groupName( int groupId ) const;
//! return the DB id for the given tag name
int tagId( const QString& tag );
//! return the DB id for the given smartgroup name
@ -135,6 +137,9 @@ class QgsStyleV2 : QObject
//! return the all the groups in the style
QStringList groupNames();
//! return the ids of all the groups in the style
QList<int> groupIds() const;
//! returns the symbolnames of a given groupid
/*!
* \param type is either SymbolEntity or ColorampEntity
@ -270,6 +275,9 @@ class QgsStyleV2 : QObject
//! gets the id from the table for the given name from the database, 0 if not found
int getId( const QString& table, const QString& name );
//! gets the name from the table for the given id from the database, empty if not found
QString getName( const QString& table, int id ) const;
//! updates the properties of an existing symbol/colorramp
/*!
* \note This should not be called separately, only called through addSymbol or addColorRamp

37
src/core/symbology-ng/qgsstylev2.cpp
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@ -475,6 +475,20 @@ QStringList QgsStyleV2::groupNames()
return groupNames;
}
QList<int> QgsStyleV2::groupIds() const
{
QList<int> groupIds;
sqlite3_stmt *ppStmt;
const char *query = "SELECT * FROM symgroup";
int nError = sqlite3_prepare_v2( mCurrentDB, query, -1, &ppStmt, nullptr );
while ( nError == SQLITE_OK && sqlite3_step( ppStmt ) == SQLITE_ROW )
{
groupIds << QString::fromUtf8( reinterpret_cast< const char * >( sqlite3_column_text( ppStmt, SymgroupId ) ) ).toInt();
}
sqlite3_finalize( ppStmt );
return groupIds;
}
QgsSymbolGroupMap QgsStyleV2::childGroupNames( const QString& parent )
{
// get the name list from the sqlite database and return as a QStringList
@ -947,6 +961,24 @@ int QgsStyleV2::getId( const QString& table, const QString& name )
return id;
}
QString QgsStyleV2::getName( const QString& table, int id ) const
{
char *query = sqlite3_mprintf( "SELECT name FROM %q WHERE id='%q'", table.toUtf8().constData(), QString::number( id ).toUtf8().constData() );
sqlite3_stmt *ppStmt;
int nErr = sqlite3_prepare_v2( mCurrentDB, query, -1, &ppStmt, nullptr );
QString name;
if ( nErr == SQLITE_OK && sqlite3_step( ppStmt ) == SQLITE_ROW )
{
name = QString::fromUtf8( reinterpret_cast< const char * >( sqlite3_column_text( ppStmt, 0 ) ) );
}
sqlite3_finalize( ppStmt );
return name;
}
int QgsStyleV2::symbolId( const QString& name )
{
return getId( "symbol", name );
@ -962,6 +994,11 @@ int QgsStyleV2::groupId( const QString& name )
return getId( "symgroup", name );
}
QString QgsStyleV2::groupName( int groupId ) const
{
return getName( "symgroup", groupId );
}
int QgsStyleV2::tagId( const QString& name )
{
return getId( "tag", name );

8
src/core/symbology-ng/qgsstylev2.h
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@ -190,6 +190,8 @@ class CORE_EXPORT QgsStyleV2 : public QObject
int symbolId( const QString& name );
//! return the DB id for the given group name
int groupId( const QString& group );
//! return the group name for the given DB id
QString groupName( int groupId ) const;
//! return the DB id for the given tag name
int tagId( const QString& tag );
//! return the DB id for the given smartgroup name
@ -198,6 +200,9 @@ class CORE_EXPORT QgsStyleV2 : public QObject
//! return the all the groups in the style
QStringList groupNames();
//! return the ids of all the groups in the style
QList<int> groupIds() const;
//! returns the symbolnames of a given groupid
/*!
* \param type is either SymbolEntity or ColorampEntity
@ -344,6 +349,9 @@ class CORE_EXPORT QgsStyleV2 : public QObject
//! gets the id from the table for the given name from the database, 0 if not found
int getId( const QString& table, const QString& name );
//! gets the name from the table for the given id from the database, empty if not found
QString getName( const QString& table, int id ) const;
//! updates the properties of an existing symbol/colorramp
/*!
* \note This should not be called separately, only called through addSymbol or addColorRamp