The GTK TreeView widget is used to display data in one of the most basic and intuitive ways possible: a list. Each row in the list can be separated into multiple. ew has a main CSS node with name treeview and style It has a subnode with name header, which is the parent for all the column header. public class Application: { public Application () { // Prepare Gtk. Window: = “My ew”; _position = Gtk. WindowPosition.

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TreeView widget is used to display the contents of any model implementing the gtk. Treevirw addition, PyGTK provides gtk. GenericTreeModel that allows you to create your own tree model entirely in Python. TreeView uses columns and cell renderers to actually display the model information. TreeViewColumn to manage the display of a column and the following cell renderers:. In addition, PyGTK provides the gtk. GenericCellRenderer that allows you to create your own cell renderers entirely in Python.

Creates a new gtk. TreeView widget displaying the model specified by model. TreeView is displaying or None treevuew is no the model. If the treeview already has a model set, this method will remove it before setting the new model. If model is Noneit will unset the old model. TreeSelection associated with the treeview. Adjustment object or None if no horizontal adjustment is being used. Adjustment or None if there is no vertical adjustment. Adjustment replaces the current vertical adjustment.

Tree and List Widgets — Python GTK+ 3 Tutorial documentation

If “headers-visible” is True the headers on the treeview are visible. Only works after treevview treeview has been realized. If active is True the column title buttons can be clicked. If setting is True it indicates that the user interface for your application requires users to read across tree rows trfeview associate cells with one another.

By default, the tree will be rendered with alternating row colors. Do not use it just because you prefer the appearance of the ruled tree; that’s a question for the theme. Some themes will draw tree rows in alternating colors even when rules are turned off, and users who prefer that appearance all the time can choose those themes.

GTK+ By Example/Tree View/Tree Models – Wikibooks, open books for an open world

You should call this method only as a semantic hint to the theme engine that your tree makes alternating colors useful from a functional standpoint since it has lots of columns, generally. If position is -1, then the column is inserted at the end. TreeViewColumn and inserts it into the treeview at the location specified by position with the column title specified by title and using the gtk.

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CellRenderer specified by cell. If position is -1, then the newly created column is inserted at the end. The column is initialized with the optional attributes passed as keyword-value pairs e. The signature of func is:. TreeViewColumn in the treeview, cell is the gtk.

CellRenderer for columnmodel is the gtk. TreeModel for the treeview and iter is the gtk.

TreeIter pointing at the row. TreeViewColumn at the specified position in the treeview. TreeViewColumn objects currently in the treeview. TreeViewColumn in the treeview. If column is Nonethen the expander arrow is always at the first visible column.

The user function is called on every column pair in turn at the beginning of a column drag to determine where a drop can take place. TreeViewcolumn is the gtk. If func is Nonethe user drag function is removed and the gtk. TreeView reverts to the default behavior of allowing any reorderable column to be dropped anywhere. The treeview must be realized before this method is called. If column is Noneno horizontal scrolling occurs. The alignment values specify the fraction of display space that is to the left of or above the cell.

This means that the cell will be scrolled to the edge closest to it’s current position. If the cell is currently visible on the screen, nothing is done. This method only works if the model is set, and path is a valid row in the model.

This will also expand all parent rows of path as necessary. This method is a convenience method to allow you to reorder models that support the gtk. TreeDragSource and the gtk. If reorderable is Truethen the user can reorder the model by dragging and dropping rows. The application can listen to these changes by connecting to the model’s signals. This function does not give you any degree of control over the order — any reordering is allowed.

If more control is needed, you should probably handle drag and drop manually. This is useful when you want to focus the htk attention on a particular row. If column is not Nonethen focus is given to the specified column. This method is often followed by the gtk. Please note that editing can only happen when the widget is realized.

If the cursor isn’t currently set, the current path will be Gt. If no column currently has focus, the current focus column will be None.

This is used primarily to compare to the event. It is primarily used for popup menus. This method is only meaningful if the treeview is realized. This method returns None if there is no path at the position. Rectangle in tree window coordinates for the cell at the row specified by path and the column specified by column.

If path points to a path not currently displayed, the y and height attributes of the rectangle will be 0.

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The sum of all cell rects does not cover the entire tree; there are extra pixels in between rows, for example. This method is only valid if the treeview is realized. If path points to a node not found in the tree, the y and height attributes of the rectangle will be 0. These background areas tile to cover the entire tree window except for the area used for header buttons.

Rectangle for the currently visible region of the treeview widget, in tree coordinates. Tree coordinates start at 0,0 for row 0 of the tree, and cover the entire scrollable area of the tree. The tree coordinates cover the full scrollable area of the tree.

The target data contains a string representing the drag type, target flags a combination of the GTK Target Flags Constants and an application assigned integer ID used for identification purposes. The target data contains a string representing the drag type, target flags a combination of gtk. The value of pos must be one of: The drop position is one of: This method returns None if no drag destination row is set.

Pixmap representation of the row specified by path. This image is used for a drag icon. If “enable-search” is True the tree allows interactive searching. The value of column is the column where the interactive search code should search.

If func is Nonethe default gtk. TreeView search equal function will be used. TreeModel of the gtk.

GTK+ By Example/Tree View/Tree Models

If the “fixed-height-mode” property is Trueall rows are assumed to be the same height. If enable is True all rows are assumed to have the same height which speeds up gtk. Treeeview enable this option if all rows are the same height and all columns are of type gtk. If the “hover-selection” property is True the selected row follows the pointer. The method sets the “hover-selection” property to the value of hover.

If hover is True the hover selection mode is enables and the selected row follows the pointer. Currently, this works only for the selection modes gtk. If the “hover-expand” property is True rows expand or collapse if the pointer moves over them. If expand is Truerows expand or collapse if the pointer moves over them.

The row separator function is used to determine if a trefview should be displayed as a separator. If func is Noneno separators will be drawn. TreeViewiter gttk a gtk. A common way to implement this is to have a boolean column in treevieawhose values func returns.