Struct gtk4::ColumnView

source ·
#[repr(transparent)]
pub struct ColumnView { /* private fields */ }
Expand description

ColumnView presents a large dynamic list of items using multiple columns with headers.

ColumnView uses the factories of its columns to generate a cell widget for each column, for each visible item and displays them together as the row for this item.

The property::ColumnView::show-row-separators and property::ColumnView::show-column-separators properties offer a simple way to display separators between the rows or columns.

ColumnView allows the user to select items according to the selection characteristics of the model. For models that allow multiple selected items, it is possible to turn on rubberband selection, using property::ColumnView::enable-rubberband.

The column view supports sorting that can be customized by the user by clicking on column headers. To set this up, the Sorter returned by sorter() must be attached to a sort model for the data that the view is showing, and the columns must have sorters attached to them by calling ColumnViewColumn::set_sorter(). The initial sort order can be set with sort_by_column().

The column view also supports interactive resizing and reordering of columns, via Drag-and-Drop of the column headers. This can be enabled or disabled with the property::ColumnView::reorderable and property::ColumnViewColumn::resizable properties.

To learn more about the list widget framework, see the overview.

CSS nodes

columnview[.column-separators][.rich-list][.navigation-sidebar][.data-table]
├── header
│   ├── <column header>
┊   ┊
│   ╰── <column header>
│
├── listview
│
┊
╰── [rubberband]

ColumnView uses a single CSS node named columnview. It may carry the .column-separators style class, when property::ColumnView::show-column-separators property is set. Header widgets appear below a node with name header. The rows are contained in a ListView widget, so there is a listview node with the same structure as for a standalone ListView widget. If property::ColumnView::show-row-separators is set, it will be passed on to the list view, causing its CSS node to carry the .separators style class. For rubberband selection, a node with name rubberband is used.

The main columnview node may also carry style classes to select the style of list presentation: .rich-list, .navigation-sidebar or .data-table.

Accessibility

ColumnView uses the AccessibleRole::TreeGrid role, header title widgets are using the AccessibleRole::ColumnHeader role. The row widgets are using the AccessibleRole::Row role, and individual cells are using the AccessibleRole::GridCell role

Implements

WidgetExt, glib::ObjectExt, AccessibleExt, BuildableExt, ConstraintTargetExt, ScrollableExt, WidgetExtManual, AccessibleExtManual

Implementations§

Creates a new ColumnView.

You most likely want to call append_column() to add columns next.

model

the list model to use

Returns

a new ColumnView

Creates a new builder-pattern struct instance to construct ColumnView objects.

This method returns an instance of ColumnViewBuilder which can be used to create ColumnView objects.

Appends the @column to the end of the columns in @self.

column

a ColumnViewColumn that hasn’t been added to a ColumnView yet

Gets the list of columns in this column view.

This list is constant over the lifetime of @self and can be used to monitor changes to the columns of @self by connecting to the ::items-changed signal.

Returns

The list managing the columns

Returns whether rows can be selected by dragging with the mouse.

Returns

true if rubberband selection is enabled

Gets the model that’s currently used to read the items displayed.

Returns

The model in use

Returns whether columns are reorderable.

Returns

true if columns are reorderable

Returns whether the list should show separators between columns.

Returns

true if the list shows column separators

Returns whether the list should show separators between rows.

Returns

true if the list shows separators

Returns whether rows will be activated on single click and selected on hover.

Returns

true if rows are activated on single click

Returns a special sorter that reflects the users sorting choices in the column view.

To allow users to customizable sorting by clicking on column headers, this sorter needs to be set on the sort model underneath the model that is displayed by the view.

See ColumnViewColumn::set_sorter() for setting up per-column sorting.

Here is an example: ⚠️ The following code is in c ⚠️

gtk_column_view_column_set_sorter (column, sorter);
gtk_column_view_append_column (view, column);
sorter = g_object_ref (gtk_column_view_get_sorter (view)));
model = gtk_sort_list_model_new (store, sorter);
selection = gtk_no_selection_new (model);
gtk_column_view_set_model (view, selection);
Returns

the Sorter of @self

Inserts a column at the given position in the columns of @self.

If @column is already a column of @self, it will be repositioned.

position

the position to insert @column at

column

the ColumnViewColumn to insert

Removes the @column from the list of columns of @self.

column

a ColumnViewColumn that’s part of @self

Sets whether selections can be changed by dragging with the mouse.

enable_rubberband

true to enable rubberband selection

Sets the model to use.

This must be a SelectionModel.

model

the model to use

Sets whether columns should be reorderable by dragging.

reorderable

whether columns should be reorderable

Sets whether the list should show separators between columns.

show_column_separators

true to show column separators

Sets whether the list should show separators between rows.

show_row_separators

true to show row separators

Sets whether rows should be activated on single click and selected on hover.

single_click_activate

true to activate items on single click

Sets the sorting of the view.

This function should be used to set up the initial sorting. At runtime, users can change the sorting of a column view by clicking on the list headers.

This call only has an effect if the sorter returned by sorter() is set on a sort model, and ColumnViewColumn::set_sorter() has been called on @column to associate a sorter with the column.

If @column is None, the view will be unsorted.

column

the ColumnViewColumn to sort by

direction

the direction to sort in

Emitted when a row has been activated by the user, usually via activating the GtkListBase|list.activate-item action.

This allows for a convenient way to handle activation in a columnview. See ListItem::set_activatable() for details on how to use this signal.

position

position of item to activate

Trait Implementations§

Returns a copy of the value. Read more
Performs copy-assignment from source. Read more
Formats the value using the given formatter. Read more
Returns the “default value” for a type. Read more
Formats the value using the given formatter. Read more
Feeds this value into the given Hasher. Read more
Feeds a slice of this type into the given Hasher. Read more
This method returns an Ordering between self and other. Read more
Compares and returns the maximum of two values. Read more
Compares and returns the minimum of two values. Read more
Restrict a value to a certain interval. Read more
This method tests for self and other values to be equal, and is used by ==.
This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
This method returns an ordering between self and other values if one exists. Read more
This method tests less than (for self and other) and is used by the < operator. Read more
This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
This method tests greater than (for self and other) and is used by the > operator. Read more
This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
Returns the type identifier of Self.

Auto Trait Implementations§

Blanket Implementations§

Updates an array of accessible properties. Read more
Updates an array of accessible relations. Read more
Updates an array of accessible states. Read more
Gets the TypeId of self. Read more
Immutably borrows from an owned value. Read more
Mutably borrows from an owned value. Read more
Upcasts an object to a superclass or interface T. Read more
Upcasts an object to a reference of its superclass or interface T. Read more
Tries to downcast to a subclass or interface implementor T. Read more
Tries to downcast to a reference of its subclass or interface implementor T. Read more
Tries to cast to an object of type T. This handles upcasting, downcasting and casting between interface and interface implementors. All checks are performed at runtime, while downcast and upcast will do many checks at compile-time already. Read more
Tries to cast to reference to an object of type T. This handles upcasting, downcasting and casting between interface and interface implementors. All checks are performed at runtime, while downcast and upcast will do many checks at compile-time already. Read more
Casts to T unconditionally. Read more
Casts to &T unconditionally. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Returns true if the object is an instance of (can be cast to) T.
Returns the type of the object.
Returns the ObjectClass of the object. Read more
Returns the class of the object.
Returns the class of the object in the given type T. Read more
Returns the interface T of the object. Read more
Sets the property property_name of the object to value value. Read more
Sets the property property_name of the object to value value. Read more
Sets multiple properties of the object at once. Read more
Sets multiple properties of the object at once. Read more
Gets the property property_name of the object and cast it to the type V. Read more
Gets the property property_name of the object. Read more
Check if the object has a property property_name of the given type_. Read more
Get the type of the property property_name of this object. Read more
Get the ParamSpec of the property property_name of this object.
Return all ParamSpec of the properties of this object.
Freeze all property notifications until the return guard object is dropped. Read more
Set arbitrary data on this object with the given key. Read more
Return previously set arbitrary data of this object with the given key. Read more
Retrieve previously set arbitrary data of this object with the given key. Read more
Set arbitrary data on this object with the given key. Read more
Return previously set arbitrary data of this object with the given key. Read more
Retrieve previously set arbitrary data of this object with the given key. Read more
Block a given signal handler. Read more
Unblock a given signal handler.
Stop emission of the currently emitted signal.
Stop emission of the currently emitted signal by the (possibly detailed) signal name.
Connect to the signal signal_name on this object. Read more
Connect to the signal signal_id on this object. Read more
Connect to the signal signal_name on this object. Read more
Connect to the signal signal_id on this object. Read more
Connect to the signal signal_name on this object. Read more
Connect to the signal signal_id on this object. Read more
Connect a closure to the signal signal_name on this object. Read more
Connect a closure to the signal signal_id on this object. Read more
Limits the lifetime of closure to the lifetime of the object. When the object’s reference count drops to zero, the closure will be invalidated. An invalidated closure will ignore any calls to invoke_with_values, or invoke when using Rust closures.
Emit signal by signal id. Read more
Same as Self::emit but takes Value for the arguments.
Emit signal by its name. Read more
Emit signal by its name. Read more
Emit signal by its name with details. Read more
Emit signal by its name with details. Read more
Emit signal by signal id with details. Read more
Emit signal by signal id with details. Read more
Disconnect a previously connected signal handler.
Connect to the notify signal of the object. Read more
Connect to the notify signal of the object. Read more
Connect to the notify signal of the object. Read more
Notify that the given property has changed its value. Read more
Notify that the given property has changed its value. Read more
Downgrade this object to a weak reference.
Add a callback to be notified when the Object is disposed.
Add a callback to be notified when the Object is disposed. Read more
Bind property source_property on this object to the target_property on the target object. Read more
Returns the strong reference count of this object.
Runs the dispose mechanism of the object. Read more
Ensures that the type has been registered with the type system.
The resulting type after obtaining ownership.
Creates owned data from borrowed data, usually by cloning. Read more
Uses borrowed data to replace owned data, usually by cloning. Read more
Converts the given value to a String. Read more
The type returned in the event of a conversion error.
Performs the conversion.
The type returned in the event of a conversion error.
Performs the conversion.