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Functions
Properties
| gboolean | child-detached | Read |
| GtkPositionType | handle-position | Read / Write |
| GtkShadowType | shadow | Read / Write |
| GtkShadowType | shadow-type | Read / Write |
| GtkPositionType | snap-edge | Read / Write |
| gboolean | snap-edge-set | Read / Write |
Object Hierarchy
GObject ╰── GInitiallyUnowned ╰── GtkObject ╰── GtkWidget ╰── GtkContainer ╰── GtkBin ╰── GtkHandleBox
Description
The GtkHandleBox widget allows a portion of a window to be "torn off". It is a bin widget which displays its child and a handle that the user can drag to tear off a separate window (the float window) containing the child widget. A thin ghost is drawn in the original location of the handlebox. By dragging the separate window back to its original location, it can be reattached.
When reattaching, the ghost and float window, must be aligned along one of the edges, the snap edge. This either can be specified by the application programmer explicitely, or GTK+ will pick a reasonable default based on the handle position.
To make detaching and reattaching the handlebox as minimally confusing
as possible to the user, it is important to set the snap edge so that
the snap edge does not move when the handlebox is deattached. For
instance, if the handlebox is packed at the bottom of a VBox, then
when the handlebox is detached, the bottom edge of the handlebox's
allocation will remain fixed as the height of the handlebox shrinks,
so the snap edge should be set to GTK_POS_BOTTOM.
Functions
gtk_handle_box_set_shadow_type ()
void gtk_handle_box_set_shadow_type (GtkHandleBox *handle_box,GtkShadowType type);
Sets the type of shadow to be drawn around the border of the handle box.
gtk_handle_box_set_handle_position ()
void gtk_handle_box_set_handle_position (GtkHandleBox *handle_box,GtkPositionType position);
Sets the side of the handlebox where the handle is drawn.
gtk_handle_box_set_snap_edge ()
void gtk_handle_box_set_snap_edge (GtkHandleBox *handle_box,GtkPositionType edge);
Sets the snap edge of a handlebox. The snap edge is the edge of the detached child that must be aligned with the corresponding edge of the "ghost" left behind when the child was detached to reattach the torn-off window. Usually, the snap edge should be chosen so that it stays in the same place on the screen when the handlebox is torn off.
If the snap edge is not set, then an appropriate value
will be guessed from the handle position. If the
handle position is GTK_POS_RIGHT or GTK_POS_LEFT,
then the snap edge will be GTK_POS_TOP, otherwise
it will be GTK_POS_LEFT.
gtk_handle_box_get_handle_position ()
GtkPositionType
gtk_handle_box_get_handle_position (GtkHandleBox *handle_box);
Gets the handle position of the handle box. See
gtk_handle_box_set_handle_position().
gtk_handle_box_get_shadow_type ()
GtkShadowType
gtk_handle_box_get_shadow_type (GtkHandleBox *handle_box);
Gets the type of shadow drawn around the handle box. See
gtk_handle_box_set_shadow_type().
gtk_handle_box_get_snap_edge ()
GtkPositionType
gtk_handle_box_get_snap_edge (GtkHandleBox *handle_box);
Gets the edge used for determining reattachment of the handle box. See
gtk_handle_box_set_snap_edge().
gtk_handle_box_get_child_detached ()
gboolean
gtk_handle_box_get_child_detached (GtkHandleBox *handle_box);
Whether the handlebox's child is currently detached.
Since: 2.14
Types and Values
struct GtkHandleBox
struct GtkHandleBox;
The GtkHandleBox struct contains the following fields. (These fields should be considered read-only. They should never be set by an application.)
| GtkShadowType shadow_type; | The shadow type for the entry. (See gtk_handle_box_set_shadow_type()). |
| GtkPositionType handle_position; | The position of the handlebox's handle with respect
to the child. (See gtk_handle_box_set_handle_position()) |
| gint snap_edge; | A value of type GtkPosition type indicating snap edge for the widget. (See gtk_handle_box_set_snap_edge). The value of -1 indicates that this value has not been set. |
| gboolean child_detached; | A boolean value indicating whether the handlebox's child is attached or detached. |
Property Details
The “child-detached” property
“child-detached” gboolean
A boolean value indicating whether the handlebox's child is attached or detached.
Flags: Read
Default value: FALSE
The “handle-position” property
“handle-position” GtkPositionType
Position of the handle relative to the child widget.
Flags: Read / Write
Default value: GTK_POS_LEFT
The “shadow” property
“shadow” GtkShadowType
Deprecated property, use shadow_type instead.
Flags: Read / Write
Default value: GTK_SHADOW_OUT
The “shadow-type” property
“shadow-type” GtkShadowType
Appearance of the shadow that surrounds the container.
Flags: Read / Write
Default value: GTK_SHADOW_OUT
The “snap-edge” property
“snap-edge” GtkPositionType
Side of the handlebox that's lined up with the docking point to dock the handlebox.
Flags: Read / Write
Default value: GTK_POS_TOP
The “snap-edge-set” property
“snap-edge-set” gboolean
Whether to use the value from the snap_edge property or a value derived from handle_position.
Flags: Read / Write
Default value: FALSE
Signal Details
The “child-attached” signal
void user_function (GtkHandleBox *handlebox, GtkWidget *widget, gpointer user_data)
This signal is emitted when the contents of the handlebox are reattached to the main window.
Parameters
handlebox |
the object which received the signal. |
|
widget |
the child widget of the handlebox. (this argument provides no extra information and is here only for backwards-compatibility) |
|
user_data |
user data set when the signal handler was connected. |
Flags: Run First
The “child-detached” signal
void user_function (GtkHandleBox *handlebox, GtkWidget *widget, gpointer user_data)
This signal is emitted when the contents of the handlebox are detached from the main window.
Parameters
handlebox |
the object which received the signal. |
|
widget |
the child widget of the handlebox. (this argument provides no extra information and is here only for backwards-compatibility) |
|
user_data |
user data set when the signal handler was connected. |
Flags: Run First