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gtkbin: Complete more of a base implementation for GtkBin subclasses

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Implement get_preferred_width, get_preferred_height, and size_allocate.
This allows GtkBin subclasses to be quick and easy, without the
author doing the subclassing to have to do much work.
This commit is contained in:
Jasper St. Pierre 2012-11-08 18:21:01 -05:00
parent 7b950944b0
commit 3563d11fc6
1 changed files with 59 additions and 1 deletions
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60
gtk/gtkbin.c
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@ -56,7 +56,12 @@ static void gtk_bin_forall (GtkContainer *container,
gpointer callback_data);
static GType gtk_bin_child_type (GtkContainer *container);
static void gtk_bin_get_preferred_width (GtkWidget *widget,
gint *minimum_width,
gint *natural_width);
static void gtk_bin_get_preferred_height (GtkWidget *widget,
gint *minimum_height,
gint *natural_height);
static void gtk_bin_get_preferred_width_for_height (GtkWidget *widget,
gint height,
gint *minimum_width,
@ -65,6 +70,8 @@ static void gtk_bin_get_preferred_height_for_width (GtkWidget
gint width,
gint *minimum_height,
gint *natural_height);
static void gtk_bin_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
G_DEFINE_ABSTRACT_TYPE (GtkBin, gtk_bin, GTK_TYPE_CONTAINER)
@ -74,8 +81,11 @@ gtk_bin_class_init (GtkBinClass *class)
GtkWidgetClass *widget_class = (GtkWidgetClass*) class;
GtkContainerClass *container_class = (GtkContainerClass*) class;
widget_class->get_preferred_width = gtk_bin_get_preferred_width;
widget_class->get_preferred_height = gtk_bin_get_preferred_height;
widget_class->get_preferred_width_for_height = gtk_bin_get_preferred_width_for_height;
widget_class->get_preferred_height_for_width = gtk_bin_get_preferred_height_for_width;
widget_class->size_allocate = gtk_bin_size_allocate;
container_class->add = gtk_bin_add;
container_class->remove = gtk_bin_remove;
@ -209,6 +219,42 @@ get_child_padding_delta (GtkBin *bin,
*delta_v = vmin - child_vmin;
}
static void
gtk_bin_get_preferred_width (GtkWidget *widget,
gint *minimum_width,
gint *natural_width)
{
GtkBin *bin = GTK_BIN (widget);
GtkBinPrivate *priv = bin->priv;
if (priv->child)
{
gint child_min, child_nat;
gtk_widget_get_preferred_width (priv->child,
&child_min, &child_nat);
*minimum_width = child_min;
*natural_width = child_nat;
}
}
static void
gtk_bin_get_preferred_height (GtkWidget *widget,
gint *minimum_height,
gint *natural_height)
{
GtkBin *bin = GTK_BIN (widget);
GtkBinPrivate *priv = bin->priv;
if (priv->child)
{
gint child_min, child_nat;
gtk_widget_get_preferred_height (priv->child,
&child_min, &child_nat);
*minimum_height = child_min;
*natural_height = child_nat;
}
}
static void
gtk_bin_get_preferred_width_for_height (GtkWidget *widget,
gint height,
@ -265,6 +311,18 @@ gtk_bin_get_preferred_height_for_width (GtkWidget *widget,
GTK_WIDGET_GET_CLASS (widget)->get_preferred_height (widget, minimum_height, natural_height);
}
static void
gtk_bin_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GtkBin *bin = GTK_BIN (widget);
GtkBinPrivate *priv = bin->priv;
gtk_widget_set_allocation (widget, allocation);
if (priv->child)
gtk_widget_size_allocate (priv->child, allocation);
}
/**
* gtk_bin_get_child: