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gtk2/docs/reference/gtk/tmpl/gtkbox.sgml
Soeren Sandmann 356df7f650 Make this function take an index and a GtkToolItem. 
Thu Oct 23 21:55:10 2003  Soeren Sandmann  <sandmann@daimi.au.dk>

	* gtk/gtktoolbar.c (gtk_toolbar_highlight_drop_location): Make
	this function take an index and a GtkToolItem.

	* tests/testtoolbar.c (main): Make "Show Arrow" default to
	true. Make one of the separators !draw and expand.
	Update for new highlight_drop_location() API.

	* gtk/gtktoolitem.[ch]: Remove "pack_end" property

	* gtk/gtktoolbar.h: Formatting fixes.

	* gtk/gtktoolbar.c: Remove "pack_end" child property. Allow
	separator tool items to expand.
	(logical_to_physical, physical_to_logical): Fix off-by-one errors
	(Fix #125472, Marco Pesenti Gritti)

	* gtk/gtkseparatortoolitem.[ch]: Add new "draw" property.
	(gtk_separator_tool_item_expose) only draw if "draw" is TRUE. Also
	return FALSE, not TRUE.
	(gtk_separator_too_item_{set|get}_property,
	(gtk_separator_tool_item_{set|get}_draw): new functions
2003-10-25 19:58:51 +00:00

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<!-- ##### SECTION Title ##### -->
GtkBox
<!-- ##### SECTION Short_Description ##### -->
a base class for box containers
<!-- ##### SECTION Long_Description ##### -->
<para>
GtkBox is an abstract widget which encapsulates functionallity for a
particular kind of container, one that organizes a variable number of
widgets into a rectangular area. GtkBox currently has two derived
classes, #GtkHBox and #GtkVBox.
</para>
<para>
The rectangular area of a GtkBox is organized into either a single row
or a single column of child widgets depending upon whether the box is
of type #GtkHBox or #GtkVBox, respectively. Thus, all children of a
GtkBox are allocated one dimension in common, which is the height of a
row, or the width of a column.
</para>
<para>
GtkBox uses a notion of <emphasis>packing</emphasis>. Packing refers to
adding widgets with reference to a particular position in a
#GtkContainer. For a GtkBox, there are two reference positions: the
<emphasis>start</emphasis> and the <emphasis>end</emphasis> of the box. For a
#GtkVBox, the start is defined as the top of the box and the end is
defined as the bottom. For a #GtkHBox the start is defined as the
left side and the end is defined as the right side.
</para>
<para>
Use repeated calls to gtk_box_pack_start() to pack widgets into a
GtkBox from start to end. Use gtk_box_pack_end() to add widgets from
end to start. You may intersperse these calls and add widgets from
both ends of the same GtkBox.
</para>
<para>
Use gtk_box_pack_start_defaults() or gtk_box_pack_end_defaults()
to pack widgets into a GtkBox if you do not need to specify the
<structfield>expand</structfield>, <structfield>fill</structfield>, or
<structfield>padding</structfield> attributes of the child to be
added.
</para>
<para>
Because GtkBox is a #GtkContainer, you may also use
gtk_container_add() to insert widgets into the box, and they will be
packed as if with gtk_box_pack_start_defaults(). Use
gtk_container_remove() to remove widgets from the GtkBox.
</para>
<para>
Use gtk_box_set_homogeneous() to specify whether or not all children
of the GtkBox are forced to get the same amount of space.
</para>
<para>
Use gtk_box_set_spacing() to determine how much space will be
minimally placed between all children in the GtkBox.
</para>
<para>
Use gtk_box_reorder_child() to move a GtkBox child to a different
place in the box.
</para>
<para>
Use gtk_box_set_child_packing() to reset the
<structfield>expand</structfield>, <structfield>fill</structfield>,
and <structfield>padding</structfield> attributes of any GtkBox child.
Use gtk_box_query_child_packing() to query these fields.
</para>
<!-- ##### SECTION See_Also ##### -->
<para>
<variablelist>
<varlistentry>
<term>#GtkHBox</term>
<listitem><para>a derived class that organizes widgets into a row.</para></listitem>
</varlistentry>
<varlistentry>
<term>#GtkVBox</term>
<listitem><para>a derived class that organizes widgets into a column.</para></listitem>
</varlistentry>
<varlistentry>
<term>#GtkFrame</term>
<listitem><para>a #GtkWidget useful for drawing a border around a GtkBox.</para></listitem>
</varlistentry>
<varlistentry>
<term>#GtkTable</term>
<listitem><para>a #GtkContainer for organizing widgets into a grid,
rather than independent rows or columns.</para></listitem>
</varlistentry>
<varlistentry>
<term>#GtkLayout</term>
<listitem><para>a #GtkContainer for organizing widgets into arbitrary
layouts.</para></listitem>
</varlistentry>
</variablelist>
</para>
<!-- ##### STRUCT GtkBox ##### -->
<para>
The #GtkBox-struct describes an instance of GtkBox and contains the following fields.
(These fields should be considered read-only. They should never be set by
an application.)
<informaltable pgwide="1" frame="none" role="struct">
<tgroup cols="2"><colspec colwidth="2*"/><colspec colwidth="8*"/>
<tbody>
<row>
<entry>#GList * <structfield>children</structfield>;</entry>
<entry>a list of children belonging the GtkBox. The data is a list of
structures of type #GtkBoxChild-struct.</entry>
</row>
<row>
<entry>#gint16 <structfield>spacing</structfield>;</entry>
<entry>the number of pixels to put between children of the GtkBox, zero
by default. Use gtk_box_set_spacing() to set this field.</entry>
</row>
<row>
<entry>#guint <structfield>homogeneous</structfield>;</entry>
<entry>a flag that if %TRUE forces all children to get equal space in
the GtkBox; %FALSE by default. Use gtk_box_set_homogeneous() to set this
field.</entry>
</row>
</tbody></tgroup></informaltable>
</para>
@children:
@spacing:
@homogeneous:
<!-- ##### STRUCT GtkBoxChild ##### -->
<para>
The #GtkBoxChild-struct holds a child widget of GtkBox and describes
how the child is to be packed into the GtkBox. Use
gtk_box_query_child_packing() and gtk_box_set_child_packing() to query
and reset the <structfield>padding</structfield>,
<structfield>expand</structfield>, <structfield>fill</structfield>,
and <structfield>pack</structfield> fields.
</para>
<para>
#GtkBoxChild-struct contains the following fields. (These fields
should be considered read-only. They should never be directly set by an
application.)
<informaltable pgwide="1" frame="none" role="struct">
<tgroup cols="2"><colspec colwidth="2*"/><colspec colwidth="8*"/>
<tbody>
<row>
<entry>#GtkWidget * <structfield>widget</structfield>;</entry>
<entry>the child widget, packed into the GtkBox.</entry>
</row>
<row>
<entry>#guint16 <structfield>padding</structfield>;</entry>
<entry>the number of extra pixels to put between this child and its
neighbors, set when packed, zero by default.</entry>
</row>
<row>
<entry>#guint <structfield>expand</structfield>;</entry>
<entry>flag indicates whether extra space should be given to this
child. Any extra space given to the parent GtkBox is divided up among
all children with this attribute set to %TRUE; set when packed, %TRUE by
default.</entry>
</row>
<row>
<entry>#guint <structfield>fill</structfield>;</entry>
<entry>flag indicates whether any extra space given to this child due to its
<structfield>expand</structfield> attribute being set is actually
allocated to the child, rather than being used as padding
around the widget; set when packed, %TRUE by default.</entry>
</row>
<row>
<entry>#guint <structfield>pack</structfield>;</entry> <entry>one of
#GtkPackType indicating whether the child is packed with reference to
the start (top/left) or end (bottom/right) of the GtkBox.</entry>
</row>
</tbody></tgroup></informaltable>
</para>
@widget:
@padding:
@expand:
@fill:
@pack:
@is_secondary:
<!-- ##### FUNCTION gtk_box_pack_start ##### -->
<para>
Adds @child to @box, packed with reference to the start of @box. The
@child is packed after any other child packed with reference to the
start of @box.
</para>
@box: a #GtkBox.
@child: the #GtkWidget to be added to @box.
@expand: %TRUE if the new child is to be given extra space allocated to
@box. The extra space will be divided evenly between all children of
@box that use this option.
@fill: %TRUE if space given to @child by the @expand option is
actually allocated to @child, rather than just padding it. This
parameter has no effect if @expand is set to %FALSE. A child is
always allocated the full height of a #GtkHBox and the full width of a
#GtkVBox. This option affects the other dimension.
@padding: extra space in pixels to put between this child and its
neighbors, over and above the global amount specified by
<structfield>spacing</structfield> in #GtkBox-struct. If @child is a
widget at one of the reference ends of @box, then @padding pixels are also put
between @child and the reference edge of @box.
<!-- ##### FUNCTION gtk_box_pack_end ##### -->
<para>
Adds @child to @box, packed with reference to the end of @box. The
@child is packed after (away from end of) any other child packed with reference to the
end of @box.
</para>
@box: a #GtkBox.
@child: the #GtkWidget to be added to @box.
@expand: %TRUE if the new child is to be given extra space allocated to
@box. The extra space will be divided evenly between all children of
@box that use this option.
@fill: %TRUE if space given to @child by the @expand option is
actually allocated to @child, rather than just padding it. This
parameter has no effect if @expand is set to %FALSE. A child is
always allocated the full height of a #GtkHBox and the full width of a
#GtkVBox. This option affects the other dimension.
@padding: extra space in pixels to put between this child and its
neighbors, over and above the global amount specified by
<structfield>spacing</structfield> in #GtkBox-struct. If @child is a
widget at one of the reference ends of @box, then @padding pixels are also put
between @child and the reference edge of @box.
<!-- ##### FUNCTION gtk_box_pack_start_defaults ##### -->
<para>
Adds @widget to @box, packed with reference to the start of @box. The
child is packed after any other child packed with reference to the
start of @box.
</para>
<para>
Parameters for how to pack the child @widget,
<structfield>expand</structfield>, <structfield>fill</structfield>,
and <structfield>padding</structfield> in #GtkBoxChild-struct, are given their default
values, %TRUE, %TRUE, and 0, respectively.
</para>
@box: a #GtkBox.
@widget: the #GtkWidget to be added to @box.
<!-- ##### FUNCTION gtk_box_pack_end_defaults ##### -->
<para>
Adds @widget to @box, packed with reference to the end of @box. The
child is packed after (away from end of) any other child packed with
reference to the end of @box.
</para>
<para>
Parameters for how to pack the child @widget,
<structfield>expand</structfield>, <structfield>fill</structfield>,
and <structfield>padding</structfield> in #GtkBoxChild-struct, are given their default
values, %TRUE, %TRUE, and 0, respectively.
</para>
@box: a #GtkBox.
@widget: the #GtkWidget to be added to @box.
<!-- ##### FUNCTION gtk_box_get_homogeneous ##### -->
<para>
</para>
@box:
@Returns:
<!-- ##### FUNCTION gtk_box_set_homogeneous ##### -->
<para>
Sets the <structfield>homogeneous</structfield> field of
#GtkBox-struct, controlling whether or not all children of @box are
given equal space in the box.
</para>
@box: a #GtkBox.
@homogeneous: a boolean value, %TRUE to create equal allotments,
%FALSE for variable allotments.
<!-- ##### FUNCTION gtk_box_get_spacing ##### -->
<para>
</para>
@box:
@Returns:
<!-- ##### FUNCTION gtk_box_set_spacing ##### -->
<para>
Sets the <structfield>spacing</structfield> field of #GtkBox-struct,
which is the number of pixels to place between children of @box.
</para>
@box: a #GtkBox.
@spacing: the number of pixels to put between children.
<!-- ##### FUNCTION gtk_box_reorder_child ##### -->
<para>
Moves @child to a new @position in the list of @box children. The
list is the <structfield>children</structfield> field of
#GtkBox-struct, and contains both widgets packed #GTK_PACK_START as
well as widgets packed #GTK_PACK_END, in the order that these widgets
were added to @box.
</para>
<para>
A widget's position in the @box children list determines where the
widget is packed into @box. A child widget at some position in the
list will be packed just after all other widgets of the same packing
type that appear earlier in the list.
</para>
@box: a #GtkBox.
@child: the #GtkWidget to move.
@position: the new position for @child in the
<structfield>children</structfield> list of #GtkBox-struct, starting
from 0. If negative, indicates the end of the list.
<!-- ##### FUNCTION gtk_box_query_child_packing ##### -->
<para>
Returns information about how @child is packed into @box.
</para>
@box: a #GtkBox.
@child: the #GtkWidget of the child to query.
@expand: the returned value of the <structfield>expand</structfield>
field in #GtkBoxChild-struct.
@fill: the returned value of the <structfield>fill</structfield> field
in #GtkBoxChild-struct.
@padding: the returned value of the <structfield>padding</structfield>
field in #GtkBoxChild-struct.
@pack_type: the returned value of the <structfield>pack</structfield>
field in #GtkBoxChild-struct.
<!-- ##### FUNCTION gtk_box_set_child_packing ##### -->
<para>
Sets the way @child is packed into @box.
</para>
@box: a #GtkBox.
@child: the #GtkWidget of the child to set.
@expand: the new value of the <structfield>expand</structfield> field
in #GtkBoxChild-struct.
@fill: the new value of the <structfield>fill</structfield> field in
#GtkBoxChild-struct.
@padding: the new value of the <structfield>padding</structfield>
field in #GtkBoxChild-struct.
@pack_type: the new value of the <structfield>pack</structfield> field
in #GtkBoxChild-struct.
<!-- ##### ARG GtkBox:homogeneous ##### -->
<para>
</para>
<!-- ##### ARG GtkBox:spacing ##### -->
<para>
</para>
<!-- ##### ARG GtkBox:expand ##### -->
<para>
</para>
<!-- ##### ARG GtkBox:fill ##### -->
<para>
</para>
<!-- ##### ARG GtkBox:pack-type ##### -->
<para>
</para>
<!-- ##### ARG GtkBox:padding ##### -->
<para>
</para>
<!-- ##### ARG GtkBox:position ##### -->
<para>
</para>
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