LimeReport/limereport/lrdatasourceintf.h
Dmitry Zagorodnev 4c1c0c49e6 Add: added a function to get an arbitrary role of a model item
Example:
$D{appdata.Column_1}
$S{
var vRow = line('DataBand1') - 1;
// 8 - Qt::BackgroundRole
var vColor = getFieldByRowIndexEx('appdata.Column_1', vRow, 8);

THIS.backgroundColor = LimeReport.color('lightgray');
if(vColor > '')
{
	THIS.backgroundColor = vColor;
}
''
}

Added several functions to get extended information from the model

- getFieldByRowIndexEx2(fieldName, rowIndex, roleName), default:
Qt::DisplayRole

- getHeaderData(fieldName, roleName), default: Qt::DisplayRole

- getHeaderColumnNameByIndex(datasourceName, columnIndex), default:
Qt::UserRole or Qt::DisplayRole

- getColumnCount(datasourceName), default: -1
2024-03-26 13:41:22 +03:00

52 lines
1.9 KiB
C++

#ifndef LRDATASOURCEINTF_H
#define LRDATASOURCEINTF_H
#include <QSharedPointer>
#include <QAbstractItemModel>
namespace LimeReport {
class IDataSource {
public:
enum DatasourceMode{DESIGN_MODE,RENDER_MODE};
typedef QSharedPointer<IDataSource> Ptr;
virtual ~IDataSource() {}
virtual bool next() = 0;
virtual bool hasNext() = 0;
virtual bool prior() = 0;
virtual void first() = 0;
virtual void last() = 0;
virtual bool bof() = 0;
virtual bool eof() = 0;
virtual QVariant data(const QString& columnName) = 0;
virtual QVariant dataByRowIndex(const QString& columnName, int rowIndex) = 0;
virtual QVariant dataByRowIndex(const QString &columnName, int rowIndex, int roleName) = 0;
virtual QVariant dataByRowIndex(const QString &columnName, int rowIndex, const QString &roleName) = 0;
virtual QVariant dataByKeyField(const QString& columnName, const QString& keyColumnName, QVariant keyData) = 0;
virtual int columnCount() = 0;
virtual QString columnNameByIndex(int columnIndex) = 0;
virtual QVariant headerData(const QString &columnName, const QString &roleName) = 0;
virtual int columnIndexByName(QString name) = 0;
virtual bool isInvalid() const = 0;
virtual QString lastError() = 0;
virtual QAbstractItemModel* model() = 0;
};
class IDataSourceHolder {
public:
virtual ~IDataSourceHolder(){}
virtual IDataSource* dataSource(IDataSource::DatasourceMode mode = IDataSource::RENDER_MODE) = 0;
virtual QString lastError() const = 0;
virtual bool isInvalid() const = 0;
virtual bool isOwned() const = 0;
virtual bool isEditable() const = 0;
virtual bool isRemovable() const = 0;
virtual void invalidate(IDataSource::DatasourceMode mode, bool dbWillBeClosed = false) = 0;
virtual void update() = 0;
virtual void clearErrors() = 0;
};
} // namespace LimeReport
#endif // LRDATASOURCEINTF_H