### Class

# GtkSource Map

#### Description [src]

    class GtkSource.Map : GtkSource.View
      implements Gtk.Accessible, Gtk.AccessibleText, Gtk.Buildable, Gtk.ConstraintTarget, Gtk.Scrollable {
      /* No available fields */
    }

Widget that displays a map for a specific `GtkSourceView`.

`GtkSourceMap` is a widget that maps the content of a `GtkSourceView` into a smaller view so the user can have a quick overview of the whole document.

This works by connecting a `GtkSourceView` to to the `GtkSourceMap` using the `GtkSourceMap:view` property or `gtk_source_map_set_view()`.

`GtkSourceMap` is a `GtkSourceView` object. This means that you can add a `GtkSourceGutterRenderer` to a gutter in the same way you would for a `GtkSourceView`. One example might be a `GtkSourceGutterRenderer` that shows which lines have changed in the document.

Additionally, it is desirable to match the font of the `GtkSourceMap` and the `GtkSourceView` used for editing. Therefore, `GtkSourceMap:font-desc` should be used to set the target font. You will need to adjust this to the desired font size for the map. A 1pt font generally seems to be an appropriate font size. “Monospace 1” is the default. See `pango_font_description_set_size()` for how to alter the size of an existing `PangoFontDescription`.

When FontConfig is available, `GtkSourceMap` will try to use a bundled “block” font to make the map more legible.

#### Hierarchy

#### Ancestors

- GtkSourceView
- GtkTextView
- GtkWidget
- GInitiallyUnowned
- GObject

#### Implements

- GtkAccessible
- GtkAccessibleText
- GtkBuildable
- GtkConstraintTarget
- GtkScrollable

#### Constructors

###### gtk_source_map_new

Creates a new `GtkSourceMap`.

#### Instance methods

###### gtk_source_map_get_view

Gets the `GtkSourceMap:view` property, which is the view this widget is mapping.

###### gtk_source_map_set_view

Sets the view that `map` will be doing the mapping to.

##### Methods inherited from GtkSourceView (40)

Please see GtkSourceView for a full list of methods.

##### Methods inherited from GtkTextView (72)

Please see GtkTextView for a full list of methods.

##### Methods inherited from GtkWidget (164)

Please see GtkWidget for a full list of methods.

##### Methods inherited from GObject (43)

Please see GObject for a full list of methods.

##### Methods inherited from GtkAccessible (20)

###### gtk_accessible_announce

Requests the user’s screen reader to announce the given message.

###### gtk_accessible_get_accessible_parent

Retrieves the accessible parent for an accessible object.

###### gtk_accessible_get_accessible_role

Retrieves the accessible role of an accessible object.

###### gtk_accessible_get_at_context

Retrieves the implementation for the given accessible object.

###### gtk_accessible_get_bounds

Queries the coordinates and dimensions of this accessible.

###### gtk_accessible_get_first_accessible_child

Retrieves the first accessible child of an accessible object.

###### gtk_accessible_get_next_accessible_sibling

Retrieves the next accessible sibling of an accessible object.

###### gtk_accessible_get_platform_state

Queries a platform state, such as focus.

###### gtk_accessible_reset_property

Resets the accessible property to its default value.

###### gtk_accessible_reset_relation

Resets the accessible relation to its default value.

###### gtk_accessible_reset_state

Resets the accessible state to its default value.

###### gtk_accessible_set_accessible_parent

Sets the parent and sibling of an accessible object.

###### gtk_accessible_update_next_accessible_sibling

Updates the next accessible sibling.

###### gtk_accessible_update_platform_state

Informs ATs that the platform state has changed.

###### gtk_accessible_update_property

Updates a list of accessible properties.

###### gtk_accessible_update_property_value

Updates an array of accessible properties.

###### gtk_accessible_update_relation

Updates a list of accessible relations.

###### gtk_accessible_update_relation_value

Updates an array of accessible relations.

###### gtk_accessible_update_state

Updates a list of accessible states.

###### gtk_accessible_update_state_value

Updates an array of accessible states.

##### Methods inherited from GtkAccessibleText (3)

###### gtk_accessible_text_update_caret_position

Updates the position of the caret.

###### gtk_accessible_text_update_contents

Notifies assistive technologies of a change in contents.

###### gtk_accessible_text_update_selection_bound

Updates the boundary of the selection.

##### Methods inherited from GtkBuildable (1)

###### gtk_buildable_get_buildable_id

Gets the ID of the `buildable` object.

##### Methods inherited from GtkScrollable (9)

###### gtk_scrollable_get_border

Returns the size of a non-scrolling border around the outside of the scrollable.

###### gtk_scrollable_get_hadjustment

Retrieves the `GtkAdjustment` used for horizontal scrolling.

###### gtk_scrollable_get_hscroll_policy

Gets the horizontal `GtkScrollablePolicy`.

###### gtk_scrollable_get_vadjustment

Retrieves the `GtkAdjustment` used for vertical scrolling.

###### gtk_scrollable_get_vscroll_policy

Gets the vertical `GtkScrollablePolicy`.

###### gtk_scrollable_set_hadjustment

Sets the horizontal adjustment of the `GtkScrollable`.

###### gtk_scrollable_set_hscroll_policy

Sets the `GtkScrollablePolicy`.

###### gtk_scrollable_set_vadjustment

Sets the vertical adjustment of the `GtkScrollable`.

###### gtk_scrollable_set_vscroll_policy

Sets the `GtkScrollablePolicy`.

#### Properties

###### GtkSource.Map:font-desc

No description available.

###### GtkSource.Map:view

No description available.

##### Properties inherited from GtkSourceView (17)

###### GtkSource.View:auto-indent

No description available.

###### GtkSource.View:background-pattern

Draw a specific background pattern on the view.

###### GtkSource.View:completion

The completion object associated with the view.

###### GtkSource.View:enable-snippets

The property denotes if snippets should be expanded when the user presses Tab after having typed a word matching the snippets found in `GtkSourceSnippetManager`.

###### GtkSource.View:highlight-current-line

No description available.

###### GtkSource.View:indent-on-tab

No description available.

###### GtkSource.View:indent-width

Width of an indentation step expressed in number of spaces.

###### GtkSource.View:indenter

The property is a `GtkSourceIndenter` to use to indent as the user types into the `GtkSourceView`.

###### GtkSource.View:insert-spaces-instead-of-tabs

No description available.

###### GtkSource.View:right-margin-position

Position of the right margin.

###### GtkSource.View:show-line-marks

Whether to display line mark pixbufs.

###### GtkSource.View:show-line-numbers

Whether to display line numbers.

###### GtkSource.View:show-right-margin

Whether to display the right margin.

###### GtkSource.View:smart-backspace

Whether smart Backspace should be used.

###### GtkSource.View:smart-home-end

Set the behavior of the HOME and END keys.

###### GtkSource.View:space-drawer

The `GtkSourceSpaceDrawer` object associated with the view.4.

###### GtkSource.View:tab-width

Width of a tab character expressed in number of spaces.

##### Properties inherited from GtkTextView (21)

###### Gtk.TextView:accepts-tab

Whether Tab will result in a tab character being entered.

###### Gtk.TextView:bottom-margin

The bottom margin for text in the text view.

###### Gtk.TextView:buffer

The buffer which is displayed.

###### Gtk.TextView:cursor-visible

If the insertion cursor is shown.

###### Gtk.TextView:editable

Whether the text can be modified by the user.

###### Gtk.TextView:extra-menu

A menu model whose contents will be appended to the context menu.

###### Gtk.TextView:im-module

Which IM (input method) module should be used for this text_view.

###### Gtk.TextView:indent

Amount to indent the paragraph, in pixels.

###### Gtk.TextView:input-hints

Additional hints (beyond `GtkTextView:input-purpose`) that allow input methods to fine-tune their behaviour.

###### Gtk.TextView:input-purpose

The purpose of this text field.

###### Gtk.TextView:justification

Left, right, or center justification.

###### Gtk.TextView:left-margin

The default left margin for text in the text view.

###### Gtk.TextView:monospace

Whether text should be displayed in a monospace font.

###### Gtk.TextView:overwrite

Whether entered text overwrites existing contents.

###### Gtk.TextView:pixels-above-lines

Pixels of blank space above paragraphs.

###### Gtk.TextView:pixels-below-lines

Pixels of blank space below paragraphs.

###### Gtk.TextView:pixels-inside-wrap

Pixels of blank space between wrapped lines in a paragraph.

###### Gtk.TextView:right-margin

The default right margin for text in the text view.

###### Gtk.TextView:tabs

Custom tabs for this text.

###### Gtk.TextView:top-margin

The top margin for text in the text view.

###### Gtk.TextView:wrap-mode

Whether to wrap lines never, at word boundaries, or at character boundaries.

##### Properties inherited from GtkWidget (35)

###### Gtk.Widget:can-focus

Whether the widget or any of its descendents can accept the input focus.

###### Gtk.Widget:can-target

Whether the widget can receive pointer events.

###### Gtk.Widget:css-classes

A list of css classes applied to this widget.

###### Gtk.Widget:css-name

The name of this widget in the CSS tree.

###### Gtk.Widget:cursor

The cursor used by `widget`.

###### Gtk.Widget:focus-on-click

Whether the widget should grab focus when it is clicked with the mouse.

###### Gtk.Widget:focusable

Whether this widget itself will accept the input focus.

###### Gtk.Widget:halign

How to distribute horizontal space if widget gets extra space.

###### Gtk.Widget:has-default

Whether the widget is the default widget.

###### Gtk.Widget:has-focus

Whether the widget has the input focus.

###### Gtk.Widget:has-tooltip

Enables or disables the emission of the `GtkWidget::query-tooltip` signal on `widget`.

###### Gtk.Widget:height-request

Overrides for height request of the widget.

###### Gtk.Widget:hexpand

Whether to expand horizontally.

###### Gtk.Widget:hexpand-set

Whether to use the `hexpand` property.

###### Gtk.Widget:layout-manager

The `GtkLayoutManager` instance to use to compute the preferred size of the widget, and allocate its children.

###### Gtk.Widget:limit-events

Makes this widget act like a modal dialog, with respect to event delivery.

###### Gtk.Widget:margin-bottom

Margin on bottom side of widget.

###### Gtk.Widget:margin-end

Margin on end of widget, horizontally.

###### Gtk.Widget:margin-start

Margin on start of widget, horizontally.

###### Gtk.Widget:margin-top

Margin on top side of widget.

###### Gtk.Widget:name

The name of the widget.

###### Gtk.Widget:opacity

The requested opacity of the widget.

###### Gtk.Widget:overflow

How content outside the widget’s content area is treated.

###### Gtk.Widget:parent

The parent widget of this widget.

###### Gtk.Widget:receives-default

Whether the widget will receive the default action when it is focused.

###### Gtk.Widget:root

The `GtkRoot` widget of the widget tree containing this widget.

###### Gtk.Widget:scale-factor

The scale factor of the widget.

###### Gtk.Widget:sensitive

Whether the widget responds to input.

###### Gtk.Widget:tooltip-markup

Sets the text of tooltip to be the given string, which is marked up with Pango markup.

###### Gtk.Widget:tooltip-text

Sets the text of tooltip to be the given string.

###### Gtk.Widget:valign

How to distribute vertical space if widget gets extra space.

###### Gtk.Widget:vexpand

Whether to expand vertically.

###### Gtk.Widget:vexpand-set

Whether to use the `vexpand` property.

###### Gtk.Widget:visible

Whether the widget is visible.

###### Gtk.Widget:width-request

Overrides for width request of the widget.

##### Properties inherited from GtkAccessible (1)

###### Gtk.Accessible:accessible-role

The accessible role of the given `GtkAccessible` implementation.

##### Properties inherited from GtkScrollable (4)

###### Gtk.Scrollable:hadjustment

Horizontal `GtkAdjustment` of the scrollable widget.

###### Gtk.Scrollable:hscroll-policy

Determines when horizontal scrolling should start.

###### Gtk.Scrollable:vadjustment

Vertical `GtkAdjustment` of the scrollable widget.

###### Gtk.Scrollable:vscroll-policy

Determines when vertical scrolling should start.

#### Signals

##### Signals inherited from GtkSourceView (10)

###### GtkSourceView::change-case

Keybinding signal to change case of the text at the current cursor position.

###### GtkSourceView::change-number

Keybinding signal to edit a number at the current cursor position.

###### GtkSourceView::join-lines

Keybinding signal to join the lines currently selected.

###### GtkSourceView::line-mark-activated

Emitted when a line mark has been activated (for instance when there was a button press in the line marks gutter).

###### GtkSourceView::move-lines

The signal is a keybinding which gets emitted when the user initiates moving a line.

###### GtkSourceView::move-to-matching-bracket

Keybinding signal to move the cursor to the matching bracket.

###### GtkSourceView::move-words

The signal is a keybinding which gets emitted when the user initiates moving a word.

###### GtkSourceView::push-snippet

The signal is emitted to insert a new snippet into the view.

###### GtkSourceView::show-completion

The signal is a key binding signal which gets emitted when the user requests a completion, by pressing Control space.

###### GtkSourceView::smart-home-end

Emitted when a the cursor was moved according to the smart home end setting.

##### Signals inherited from GtkTextView (15)

###### GtkTextView::backspace

Gets emitted when the user asks for it.

###### GtkTextView::copy-clipboard

Gets emitted to copy the selection to the clipboard.

###### GtkTextView::cut-clipboard

Gets emitted to cut the selection to the clipboard.

###### GtkTextView::delete-from-cursor

Gets emitted when the user initiates a text deletion.

###### GtkTextView::extend-selection

Emitted when the selection needs to be extended at `location`.

###### GtkTextView::insert-at-cursor

Gets emitted when the user initiates the insertion of a fixed string at the cursor.

###### GtkTextView::insert-emoji

Gets emitted to present the Emoji chooser for the `text_view`.

###### GtkTextView::move-cursor

Gets emitted when the user initiates a cursor movement.

###### GtkTextView::move-viewport

Gets emitted to move the viewport.

###### GtkTextView::paste-clipboard

Gets emitted to paste the contents of the clipboard into the text view.

###### GtkTextView::preedit-changed

Emitted when preedit text of the active IM changes.

###### GtkTextView::select-all

Gets emitted to select or unselect the complete contents of the text view.

###### GtkTextView::set-anchor

Gets emitted when the user initiates settings the “anchor” mark.

###### GtkTextView::toggle-cursor-visible

Gets emitted to toggle the `cursor-visible` property.

###### GtkTextView::toggle-overwrite

Gets emitted to toggle the overwrite mode of the text view.

##### Signals inherited from GtkWidget (13)

###### GtkWidget::destroy

Signals that all holders of a reference to the widget should release the reference that they hold.

###### GtkWidget::direction-changed

Emitted when the text direction of a widget changes.

###### GtkWidget::hide

Emitted when `widget` is hidden.

###### GtkWidget::keynav-failed

Emitted if keyboard navigation fails.

###### GtkWidget::map

Emitted when `widget` is going to be mapped.

###### GtkWidget::mnemonic-activate

Emitted when a widget is activated via a mnemonic.

###### GtkWidget::move-focus

Emitted when the focus is moved.

###### GtkWidget::query-tooltip

Emitted when the widget’s tooltip is about to be shown.

###### GtkWidget::realize

Emitted when `widget` is associated with a `GdkSurface`.

###### GtkWidget::show

Emitted when `widget` is shown.

###### GtkWidget::state-flags-changed

Emitted when the widget state changes.

###### GtkWidget::unmap

Emitted when `widget` is going to be unmapped.

###### GtkWidget::unrealize

Emitted when the `GdkSurface` associated with `widget` is destroyed.

##### Signals inherited from GObject (1)

###### GObject::notify

The notify signal is emitted on an object when one of its properties has its value set through g_object_set_property(), g_object_set(), et al.

#### Class structure

    struct GtkSourceMapClass {
      GtkSourceViewClass parent_class;

    }

No description available.

###### Class members

`parent_class: GtkSourceViewClass`

  No description available.