## GdlDockMaster GdlDockMaster — Manage all dock widgets |

## Stability Level

Unstable, unless otherwise indicated

## Functions

#define | GDL_DOCK_OBJECT_GET_MASTER()
void | gdl_dock_master_add ()
void | gdl_dock_master_remove ()
void | gdl_dock_master_set_controller ()
GdlDockObject * | gdl_dock_master_get_controller ()
GdlDockObject * | gdl_dock_master_get_object ()
void | gdl_dock_master_foreach ()
void | gdl_dock_master_foreach_toplevel ()

## Properties

gchar * | default-title | Read / Write
gint | locked | Read / Write
GdlSwitcherStyle | switcher-style | Read / Write
GtkPositionType | tab-pos | Read / Write
gboolean | tab-reorderable | Read / Write

## Signals

void | layout-changed | Run Last

## Types and Values

struct | GdlDockMaster
enum | GdlSwitcherStyle

## Object Hierarchy

        GEnum
        ╰── GdlSwitcherStyle
        GObject
        ╰── GdlDockMaster

## Description

For the toplevel docks to be able to interact with each other, when the user drags items from one place to another, they're all kept in a user-invisible and automatic object called the master. To participate in docking operations every GdlDockObject must have the same master, the binding to the master is done automatically.

The master also keeps track of the manual items, mostly those created with gdl_dock_*_new functions which are in the dock. This is so the user doesn't need to keep track of them, but can perform operations like hiding and such.

The master is responsible for creating automatically compound widgets. When the user drops a widget on a simple one, a notebook or a paned compound widget containing both widgets is created and replace it. Such widgets are hidden automatically when they have less than two children.

One of the top level dock item of the master is considered as the controller. This controller is an user visible representation of the master. A floating dock widget will use a dock object having the same properties than this controller. You can show or hide all dock widgets of the master by showing or hiding the controller. This controller is assigned to the master automatically. If the controller dock widget is removed, a new top level dock widget will be automatically used as controller. If there is no other dock widget, the master will be destroyed.

## Functions

### GDL_DOCK_OBJECT_GET_MASTER()

    #define             GDL_DOCK_OBJECT_GET_MASTER(object)

`GDL_DOCK_OBJECT_GET_MASTER` has been deprecated since version 3.6 and should not be used in newly-written code.

Use `gdl_dock_object_get_master()`

Retrieve the GdlDockMaster object managing the object.

#### Parameters

object | A GdlDockObject |

### gdl_dock_master_add ()

    void
    gdl_dock_master_add (GdlDockMaster *master,
                         GdlDockObject *object);

Add a new dock widget to the master.

#### Parameters

master | a GdlDockMaster |
object | a GdlDockObject |

### gdl_dock_master_remove ()

    void
    gdl_dock_master_remove (GdlDockMaster *master,
                            GdlDockObject *object);

Remove one dock widget from the master.

#### Parameters

master | a GdlDockMaster |
object | a GdlDockObject |

### gdl_dock_master_set_controller ()

    void
    gdl_dock_master_set_controller (GdlDockMaster *master,
                                    GdlDockObject *new_controller);

Set a new controller. The controller must be a top level GdlDockObject.

#### Parameters

master | a GdlDockMaster |
new_controller | a GdlDockObject |

### gdl_dock_master_get_controller ()

    GdlDockObject *
    gdl_dock_master_get_controller (GdlDockMaster *master);

Retrieves the GdlDockObject acting as the controller.

#### Parameters

master | a GdlDockMaster |

#### Returns

A GdlDockObject.

[transfer none]

### gdl_dock_master_get_object ()

    GdlDockObject *
    gdl_dock_master_get_object (GdlDockMaster *master,
                                const gchar *nick_name);

Looks for a GdlDockObject named `nick_name` .

#### Parameters

master | a GdlDockMaster |
nick_name | the name of the dock widget. |

#### Returns

A GdlDockObject named `nick_name` or `NULL` if it does not exist.

[allow-none][transfer none]

### gdl_dock_master_foreach ()

    void
    gdl_dock_master_foreach (GdlDockMaster *master,
                             GFunc function,
                             gpointer user_data);

Call `function` on each dock widget of the master.

#### Parameters

master | a GdlDockMaster |
function | the function to call with each element's data. | [scope call]
user_data | user data to pass to the function |

### gdl_dock_master_foreach_toplevel ()

    void
    gdl_dock_master_foreach_toplevel (GdlDockMaster *master,
                                      gboolean include_controller,
                                      GFunc function,
                                      gpointer user_data);

Call `function` on each top level dock widget of the master, including or not the controller.

#### Parameters

master | a GdlDockMaster |
include_controller | `TRUE` to include the controller |
function | the function to call with each element's data. | [scope call]
user_data | user data to pass to the function |

## Types and Values

### struct GdlDockMaster

    struct GdlDockMaster;

### enum GdlSwitcherStyle

Used to customize the appearance of the tabs in GdlDockNotebook.

#### Members

GDL_SWITCHER_STYLE_TEXT | Tabs display only text labels. |
GDL_SWITCHER_STYLE_ICON | Tabs display only icons. |
GDL_SWITCHER_STYLE_BOTH | Tabs display text and icons. |
GDL_SWITCHER_STYLE_TOOLBAR | Same as `GDL_SWITCHER_STYLE_BOTH` . |
GDL_SWITCHER_STYLE_TABS | Tabs display like notebook tabs. |
GDL_SWITCHER_STYLE_NONE | Do not display tabs. |

## Property Details

### The `“default-title”` property

      “default-title”            gchar *

Default title for newly created floating docks.

Flags: Read / Write

Default value: NULL

### The `“locked”` property

      “locked”                   gint

If is set to 1, all the dock items bound to the master are locked; if it's 0, all are unlocked; -1 indicates inconsistency among the items.

Flags: Read / Write

Allowed values: [-1,1]

Default value: 0

### The `“switcher-style”` property

      “switcher-style”           GdlSwitcherStyle

Switcher buttons style.

Flags: Read / Write

Default value: GDL_SWITCHER_STYLE_BOTH

### The `“tab-pos”` property

      “tab-pos”                  GtkPositionType

Which side of the notebook holds the tabs.

Flags: Read / Write

Default value: GTK_POS_BOTTOM

### The `“tab-reorderable”` property

      “tab-reorderable”          gboolean

Whether the tab is reorderable by user action.

Flags: Read / Write

Default value: FALSE

## Signal Details

### The `“layout-changed”` signal

    void
    user_function (GdlDockMaster *arg0,
                   gpointer       user_data)

Signals that the layout has changed, one or more widgets have been moved, added or removed.

#### Parameters

user_data | user data set when the signal handler was connected. |

Flags: Run Last

## See Also

GdlDockObject, GdlDockNotebook, GdlDockPaned