Gtk::TreeModelColumnRecord Class Reference

#include <treemodelcolumn.h>

Inheritance diagram for Gtk::TreeModelColumnRecord:

Public Member Functions
	TreeModelColumnRecord ()
virtual	~TreeModelColumnRecord ()
void	add (TreeModelColumnBase &column)
unsigned int	size () const
const GType *	types () const

Private Member Functions
	TreeModelColumnRecord (const TreeModelColumnRecord &)
TreeModelColumnRecord &	operator= (const TreeModelColumnRecord &)

Private Attributes
std::vector< GType >	column_types_

Detailed Description

Typedefed as TreeModel::ColumnRecord. Keeps a record of TreeModelColumns.

ColumnRecord objects are used to setup a new instance of a TreeModel (or rather, a new instance of an implementation of the model, such as Gtk::ListStore or Gtk::TreeStore). It is convenient to do that by deriving from TreeModel::ColumnRecord:

class MyModelColumns : public Gtk::TreeModel::ColumnRecord
{
public:
  Gtk::TreeModelColumn<Glib::ustring>                filename;
  Gtk::TreeModelColumn<Glib::ustring>                description;
  Gtk::TreeModelColumn< Glib::RefPtr<Gdk::Pixbuf> >  thumbnail;
 
  MyModelColumns() { add(filename); add(description); add(thumbnail); }
};

Whether or not you derive your own ColumnRecord, you need to add the TreeModelColumns to the ColumnRecord with the add() method.

A ColumnRecord instance, such as an instance of MyModelColumns should then be passed to ListStore::create() or TreeStore::create(). The TreeModelColumns, such as the members filename, description and thumbnail can then be used with Gtk::TreeRow::operator[]() to specify the column you're interested in.

Neither TreeModel::ColumnRecord nor the TreeModelColumns contain any real data – they merely describe what C++ type is stored in which column of a TreeModel, and save you from having to repeat that type information in several places.

Thus TreeModel::ColumnRecord can be made a singleton (as long as you make sure it's instantiated after Gtk::Main), even when creating multiple models from it.

Definition at line 70 of file treemodelcolumn.h.

Constructor & Destructor Documentation

TreeModelColumnRecord() [1/2]

Gtk::TreeModelColumnRecord::TreeModelColumnRecord

(

)

~TreeModelColumnRecord()

virtual Gtk::TreeModelColumnRecord::~TreeModelColumnRecord ( )

virtual

TreeModelColumnRecord() [2/2]

Gtk::TreeModelColumnRecord::TreeModelColumnRecord ( const TreeModelColumnRecord &  )

private

Member Function Documentation

add()

void Gtk::TreeModelColumnRecord::add

(

TreeModelColumnBase &

column

)

Adds a TreeModelColumn to this record. add() not only registers the column, but also assigns a column index to it. Once registered, the TreeModelColumn is final, and you're free to pass it around by value.

operator=()

TreeModelColumnRecord& Gtk::TreeModelColumnRecord::operator= ( const TreeModelColumnRecord &  )

private

size()

unsigned int Gtk::TreeModelColumnRecord::size

(

)

const

types()

const GType* Gtk::TreeModelColumnRecord::types

(

)

const

Member Data Documentation

column_types_

std::vector<GType> Gtk::TreeModelColumnRecord::column_types_

private

Definition at line 87 of file treemodelcolumn.h.

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The documentation for this class was generated from the following file:

• treemodelcolumn.h