Struct gtk4::Paned

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

A widget with two panes, arranged either horizontally or vertically.

An example GtkPaned

The division between the two panes is adjustable by the user by dragging a handle.

Child widgets are added to the panes of the widget with set_start_child() and set_end_child(). The division between the two children is set by default from the size requests of the children, but it can be adjusted by the user.

A paned widget draws a separator between the two child widgets and a small handle that the user can drag to adjust the division. It does not draw any relief around the children or around the separator. (The space in which the separator is called the gutter.) Often, it is useful to put each child inside a Frame so that the gutter appears as a ridge. No separator is drawn if one of the children is missing.

Each child has two options that can be set, “resize” and “shrink”. If “resize” is true then, when the Paned is resized, that child will expand or shrink along with the paned widget. If “shrink” is true, then that child can be made smaller than its requisition by the user. Setting “shrink” to false allows the application to set a minimum size. If “resize” is false for both children, then this is treated as if “resize” is true for both children.

The application can set the position of the slider as if it were set by the user, by calling set_position().

CSS nodes

paned
├── <child>
├── separator[.wide]
╰── <child>

Paned has a main CSS node with name paned, and a subnode for the separator with name separator. The subnode gets a .wide style class when the paned is supposed to be wide.

In horizontal orientation, the nodes are arranged based on the text direction, so in left-to-right mode, :first-child will select the leftmost child, while it will select the rightmost child in RTL layouts.

Creating a paned widget with minimum sizes.

⚠️ The following code is in c ⚠️

GtkWidget *hpaned = gtk_paned_new (GTK_ORIENTATION_HORIZONTAL);
GtkWidget *frame1 = gtk_frame_new (NULL);
GtkWidget *frame2 = gtk_frame_new (NULL);

gtk_widget_set_size_request (hpaned, 200, -1);

gtk_paned_set_start_child (GTK_PANED (hpaned), frame1);
gtk_paned_set_resize_start_child (GTK_PANED (hpaned), TRUE);
gtk_paned_set_shrink_start_child (GTK_PANED (hpaned), FALSE);
gtk_widget_set_size_request (frame1, 50, -1);

gtk_paned_set_end_child (GTK_PANED (hpaned), frame2);
gtk_paned_set_resize_end_child (GTK_PANED (hpaned), FALSE);
gtk_paned_set_shrink_end_child (GTK_PANED (hpaned), FALSE);
gtk_widget_set_size_request (frame2, 50, -1);

Implements

WidgetExt, glib::ObjectExt, AccessibleExt, BuildableExt, ConstraintTargetExt, AccessibleRangeExt, OrientableExt, WidgetExtManual, AccessibleExtManual

Implementations

Creates a new Paned widget.

orientation

the paned’s orientation.

Returns

the newly created paned widget

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

This method returns an instance of PanedBuilder which can be used to create Paned objects.

Retrieves the end child of the given Paned.

Returns

the end child widget

Obtains the position of the divider between the two panes.

Returns

the position of the divider, in pixels

Returns whether the property::Paned::end-child can be resized.

Returns

true if the end child is resizable

Returns whether the property::Paned::start-child can be resized.

Returns

true if the start child is resizable

Returns whether the property::Paned::end-child can shrink.

Returns

true if the end child is shrinkable

Returns whether the property::Paned::start-child can shrink.

Returns

true if the start child is shrinkable

Retrieves the start child of the given Paned.

Returns

the start child widget

Gets whether the separator should be wide.

Returns

true if the paned should have a wide handle

Sets the end child of @self to @child.

If @child is NULL, the existing child will be removed.

child

the widget to add

Sets the position of the divider between the two panes.

position

pixel position of divider, a negative value means that the position is unset

Sets whether the property::Paned::end-child can be resized.

resize

true to let the end child be resized

Sets whether the property::Paned::start-child can be resized.

resize

true to let the start child be resized

Sets whether the property::Paned::end-child can shrink.

resize

true to let the end child be shrunk

Sets whether the property::Paned::start-child can shrink.

resize

true to let the start child be shrunk

Sets the start child of @self to @child.

If @child is NULL, the existing child will be removed.

child

the widget to add

Sets whether the separator should be wide.

wide

the new value for the property::Paned::wide-handle property

The largest possible value for the property::Paned::position property.

This property is derived from the size and shrinkability of the widget’s children.

The smallest possible value for the property::Paned::position property.

This property is derived from the size and shrinkability of the widget’s children.

Whether the property::Paned::position property has been set.

Emitted to accept the current position of the handle when moving it using key bindings.

This is a keybinding signal.

The default binding for this signal is Return or Space.

Emitted to cancel moving the position of the handle using key bindings.

The position of the handle will be reset to the value prior to moving it.

This is a keybinding signal.

The default binding for this signal is Escape.

Emitted to cycle the focus between the children of the paned.

This is a keybinding signal.

The default binding is F6.

reversed

whether cycling backward or forward

Emitted to cycle whether the paned should grab focus to allow the user to change position of the handle by using key bindings.

This is a keybinding signal.

The default binding for this signal is F8.

reversed

whether cycling backward or forward

Emitted to move the handle with key bindings.

This is a keybinding signal.

scroll_type

a ScrollType

Emitted to accept the current position of the handle and then move focus to the next widget in the focus chain.

This is a keybinding signal.

The default binding is Tab.

Trait Implementations

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