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Gtk::TreeModelColumnRecord Class Reference
[TreeView Classes]
Inheritance diagram for Gtk::TreeModelColumnRecord:
[legend]List of all members.
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:
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 it's absolutely legal to use a statically allocated TreeModel::ColumnRecord (as long as you make sure it's instantiated after Gtk::Main), even when creating multiple models from it.
Constructor & Destructor Documentation
Gtk::TreeModelColumnRecord::TreeModelColumnRecord |
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Member Function Documentation
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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. |
unsigned int Gtk::TreeModelColumnRecord::size |
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const GType* Gtk::TreeModelColumnRecord::types |
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The documentation for this class was generated from the following file:
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