CTSPModel Class Reference

This class implements table model for manipulating a task. More...

#include <tspmodel.h>

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List of all members.

Signals
void	numCitiesChanged (int)
	This signal is emitted whenever the number of cities in the task changes.
Public Member Functions
	CTSPModel (QObject *parent=0)
	Class constructor.
void	clear ()
	Resets the table, setting all its elements to 0.
int	columnCount (const QModelIndex &parent=QModelIndex()) const
	Returns the column count in the table.
QVariant	data (const QModelIndex &index, int role=Qt::DisplayRole) const
	Returns the data stored under the given role for the item referred to by the index.
Qt::ItemFlags	flags (const QModelIndex &index) const
	Returns the item flags for the given index.
QVariant	headerData (int section, Qt::Orientation orientation, int role=Qt::DisplayRole) const
	Returns the data for the given role and section in the header with the specified orientation.
bool	loadTask (const QString &fname)
	Loads a task from fname.
quint16	numCities () const
	Returns the number of cities.
void	randomize ()
	Randomizes the table by setting all its values to random ones.
int	rowCount (const QModelIndex &parent=QModelIndex()) const
	Returns the row count in the table.
bool	saveTask (const QString &fname)
	Saves current task to fname.
bool	setData (const QModelIndex &index, const QVariant &value, int role=Qt::EditRole)
	Sets the role data for the item at index to value.
void	setNumCities (int n)
	Sets number of cities in the current task to n.

Detailed Description

This class implements table model for manipulating a task.

Author:: Copyright © 2007-2010 Lёppa <contacts[at]oleksii[dot]name>

Constructor & Destructor Documentation

CTSPModel::CTSPModel ( QObject * parent = 0 )

Class constructor.

Parameters:

parent

The parent of the table model.

Member Function Documentation

void CTSPModel::clear ( )

Resets the table, setting all its elements to 0.

See also:: randomize()

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int CTSPModel::columnCount ( const QModelIndex & parent = QModelIndex() ) const

Returns the column count in the table.

Returns:: Number of columns in the table.

Actually, this function returns the number of cities in the current task.

See also:: numCities(), rowCount()

QVariant CTSPModel::data	(	const QModelIndex &	index,
		int	role = `Qt::DisplayRole`
	)			const

Returns the data stored under the given role for the item referred to by the index.

Parameters:

	index	An item index to get data from.
	role	The role to get data for.

Returns:: Corresponding data.

See also:: setData(), headerData()

Hack:: HACK: Converting to string to prevent spinbox in edit mode

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Qt::ItemFlags CTSPModel::flags ( const QModelIndex & index ) const

Returns the item flags for the given index.

Parameters:

index

An item index to get flags from.

Returns:: Corresponding item flags.

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QVariant CTSPModel::headerData	(	int	section,
		Qt::Orientation	orientation,
		int	role = `Qt::DisplayRole`
	)			const

Returns the data for the given role and section in the header with the specified orientation.

Parameters:

	section	The section to get header data for.
	orientation	The orientation to get header data for.
	role	The role to get header data for.

Returns:: Corresponding header data.

For horizontal headers, the section number corresponds to the column number of items shown beneath it. For vertical headers, the section number typically to the row number of items shown alongside it.

bool CTSPModel::loadTask ( const QString & fname )

Loads a task from fname.

Parameters:

fname

The name of the file to be loaded.