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#include "nautilus-container-max-width.h"
struct _NautilusContainerMaxWidth
{
GtkBin parent_instance;
guint max_width;
};
G_DEFINE_TYPE (NautilusContainerMaxWidth, nautilus_container_max_width, GTK_TYPE_BIN)
enum
{
PROP_0,
PROP_MAX_WIDTH,
N_PROPS
};
static GParamSpec *properties [N_PROPS];
void
nautilus_container_max_width_set_max_width (NautilusContainerMaxWidth *self,
guint max_width)
{
self->max_width = max_width;
gtk_widget_queue_allocate (GTK_WIDGET (self));
}
guint
nautilus_container_max_width_get_max_width (NautilusContainerMaxWidth *self)
{
return self->max_width;
}
NautilusContainerMaxWidth *
nautilus_container_max_width_new (void)
{
return g_object_new (NAUTILUS_TYPE_CONTAINER_MAX_WIDTH, NULL);
}
static void
nautilus_container_max_width_finalize (GObject *object)
{
NautilusContainerMaxWidth *self = (NautilusContainerMaxWidth *) object;
G_OBJECT_CLASS (nautilus_container_max_width_parent_class)->finalize (object);
}
static void
nautilus_container_max_width_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
NautilusContainerMaxWidth *self = NAUTILUS_CONTAINER_MAX_WIDTH (object);
switch (prop_id)
{
case PROP_MAX_WIDTH:
{
g_value_set_int (value, self->max_width);
}
default:
{
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
break;
}
}
static void
nautilus_container_max_width_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
NautilusContainerMaxWidth *self = NAUTILUS_CONTAINER_MAX_WIDTH (object);
switch (prop_id)
{
case PROP_MAX_WIDTH:
{
nautilus_container_max_width_set_max_width (self, g_value_get_int (value));
}
break;
default:
{
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
break;
}
}
static void
get_preferred_width (GtkWidget *widget,
gint *minimum_size,
gint *natural_size)
{
GtkWidget *child;
NautilusContainerMaxWidth *self;
GtkStyleContext *style_context;
GtkBorder padding;
self = NAUTILUS_CONTAINER_MAX_WIDTH (widget);
child = gtk_bin_get_child (GTK_BIN (self));
*natural_size = 0;
*minimum_size = 0;
gtk_widget_get_preferred_width (child, minimum_size, natural_size);
*minimum_size = self->max_width == -1 ? *minimum_size : 96;
*natural_size = self->max_width == -1 ? *natural_size :
MAX (*minimum_size, MIN (self->max_width, *natural_size));
style_context = gtk_widget_get_style_context (child);
gtk_style_context_get_padding (style_context,
gtk_widget_get_state_flags (child),
&padding);
*minimum_size += padding.left + padding.right;
*natural_size += padding.left + padding.right;
}
static void
get_preferred_height (GtkWidget *widget,
gint *minimum_size,
gint *natural_size)
{
GtkWidget *child;
NautilusContainerMaxWidth *self;
gint minimum_width = 0;
gint natural_width = 0;
GtkStyleContext *style_context;
GtkBorder padding;
self = NAUTILUS_CONTAINER_MAX_WIDTH (widget);
child = gtk_bin_get_child (GTK_BIN (self));
get_preferred_width (widget, &minimum_width, &natural_width);
natural_width = self->max_width == -1 ? natural_width : MIN (self->max_width, natural_width);
gtk_widget_get_preferred_height_for_width (child, natural_width, minimum_size, natural_size);
style_context = gtk_widget_get_style_context (child);
gtk_style_context_get_padding (style_context,
gtk_widget_get_state_flags (child),
&padding);
*minimum_size += padding.top + padding.bottom;
*natural_size += padding.top + padding.bottom;
}
static void
get_preferred_height_for_width (GtkWidget *widget,
gint width,
gint *minimum_size,
gint *natural_size)
{
get_preferred_height (widget, minimum_size, natural_size);
}
static void
size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GTK_WIDGET_CLASS (nautilus_container_max_width_parent_class)->size_allocate (widget, allocation);
}
static void
get_preferred_width_for_height (GtkWidget *widget,
gint height,
gint *minimum_size,
gint *natural_size)
{
get_preferred_width (widget, minimum_size, natural_size);
}
static void
constructed (GObject *obj)
{
NautilusContainerMaxWidth *self = NAUTILUS_CONTAINER_MAX_WIDTH (obj);
G_OBJECT_CLASS (nautilus_container_max_width_parent_class)->constructed (obj);
/* We want our parent to gives our preferred width */
gtk_widget_set_halign (GTK_WIDGET (self), GTK_ALIGN_CENTER);
self->max_width = -1;
}
static void
nautilus_container_max_width_class_init (NautilusContainerMaxWidthClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
object_class->finalize = nautilus_container_max_width_finalize;
object_class->get_property = nautilus_container_max_width_get_property;
object_class->set_property = nautilus_container_max_width_set_property;
object_class->constructed = constructed;
widget_class->get_preferred_width = get_preferred_width;
widget_class->get_preferred_width_for_height = get_preferred_width_for_height;
widget_class->get_preferred_height = get_preferred_height;
widget_class->get_preferred_height_for_width = get_preferred_height_for_width;
widget_class->size_allocate = size_allocate;
}
static void
nautilus_container_max_width_init (NautilusContainerMaxWidth *self)
{
}
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