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Added default implementations of various GtkCellArea vfuncs.

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Having default implementations on abstract classes that do nothing
or print errors make life easier for language bindings implementors,
inside GTK+ this makes little or no difference.
This commit is contained in:
Tristan Van Berkom
2011-02-03 19:03:49 +09:00
parent ce000db7f6
commit b01fc35c18
1 changed files with 152 additions and 106 deletions
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258
gtk/gtkcellarea.c
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@ -383,6 +383,20 @@ static void gtk_cell_area_get_property (GObject
GParamSpec *pspec); GParamSpec *pspec);
/* GtkCellAreaClass */ /* GtkCellAreaClass */
static void gtk_cell_area_real_add (GtkCellArea *area,
GtkCellRenderer *renderer);
static void gtk_cell_area_real_remove (GtkCellArea *area,
GtkCellRenderer *renderer);
static void gtk_cell_area_real_foreach (GtkCellArea *area,
GtkCellCallback callback,
gpointer callback_data);
static void gtk_cell_area_real_foreach_alloc (GtkCellArea *area,
GtkCellAreaContext *context,
GtkWidget *widget,
const GdkRectangle *cell_area,
const GdkRectangle *background_area,
GtkCellAllocCallback callback,
gpointer callback_data);
static gint gtk_cell_area_real_event (GtkCellArea *area, static gint gtk_cell_area_real_event (GtkCellArea *area,
GtkCellAreaContext *context, GtkCellAreaContext *context,
GtkWidget *widget, GtkWidget *widget,
@ -402,6 +416,21 @@ static void gtk_cell_area_real_apply_attributes (GtkCellArea
GtkTreeIter *iter, GtkTreeIter *iter,
gboolean is_expander, gboolean is_expander,
gboolean is_expanded); gboolean is_expanded);
static GtkCellAreaContext *gtk_cell_area_real_create_context (GtkCellArea *area);
static GtkCellAreaContext *gtk_cell_area_real_copy_context (GtkCellArea *area,
GtkCellAreaContext *context);
static GtkSizeRequestMode gtk_cell_area_real_get_request_mode (GtkCellArea *area);
static void gtk_cell_area_real_get_preferred_width (GtkCellArea *area,
GtkCellAreaContext *context,
GtkWidget *widget,
gint *minimum_width,
gint *natural_width);
static void gtk_cell_area_real_get_preferred_height (GtkCellArea *area,
GtkCellAreaContext *context,
GtkWidget *widget,
gint *minimum_height,
gint *natural_height);
static void gtk_cell_area_real_get_preferred_height_for_width (GtkCellArea *area, static void gtk_cell_area_real_get_preferred_height_for_width (GtkCellArea *area,
GtkCellAreaContext *context, GtkCellAreaContext *context,
GtkWidget *widget, GtkWidget *widget,
@ -421,6 +450,8 @@ static gboolean gtk_cell_area_real_activate (GtkCellArea
const GdkRectangle *cell_area, const GdkRectangle *cell_area,
GtkCellRendererState flags, GtkCellRendererState flags,
gboolean edit_only); gboolean edit_only);
static gboolean gtk_cell_area_real_focus (GtkCellArea *area,
GtkDirectionType direction);
/* GtkCellLayoutIface */ /* GtkCellLayoutIface */
static void gtk_cell_area_cell_layout_init (GtkCellLayoutIface *iface); static void gtk_cell_area_cell_layout_init (GtkCellLayoutIface *iface);
@ -631,25 +662,27 @@ gtk_cell_area_class_init (GtkCellAreaClass *class)
object_class->set_property = gtk_cell_area_set_property; object_class->set_property = gtk_cell_area_set_property;
/* general */ /* general */
class->add = NULL; class->add = gtk_cell_area_real_add;
class->remove = NULL; class->remove = gtk_cell_area_real_remove;
class->foreach = NULL; class->foreach = gtk_cell_area_real_foreach;
class->foreach_alloc = gtk_cell_area_real_foreach_alloc;
class->event = gtk_cell_area_real_event; class->event = gtk_cell_area_real_event;
class->render = gtk_cell_area_real_render; class->render = gtk_cell_area_real_render;
class->apply_attributes = gtk_cell_area_real_apply_attributes; class->apply_attributes = gtk_cell_area_real_apply_attributes;
/* geometry */ /* geometry */
class->create_context = NULL; class->create_context = gtk_cell_area_real_create_context;
class->get_request_mode = NULL; class->copy_context = gtk_cell_area_real_copy_context;
class->get_preferred_width = NULL; class->get_request_mode = gtk_cell_area_real_get_request_mode;
class->get_preferred_height = NULL; class->get_preferred_width = gtk_cell_area_real_get_preferred_width;
class->get_preferred_height = gtk_cell_area_real_get_preferred_height;
class->get_preferred_height_for_width = gtk_cell_area_real_get_preferred_height_for_width; class->get_preferred_height_for_width = gtk_cell_area_real_get_preferred_height_for_width;
class->get_preferred_width_for_height = gtk_cell_area_real_get_preferred_width_for_height; class->get_preferred_width_for_height = gtk_cell_area_real_get_preferred_width_for_height;
/* focus */ /* focus */
class->is_activatable = gtk_cell_area_real_is_activatable; class->is_activatable = gtk_cell_area_real_is_activatable;
class->activate = gtk_cell_area_real_activate; class->activate = gtk_cell_area_real_activate;
class->focus = NULL; class->focus = gtk_cell_area_real_focus;
/* Signals */ /* Signals */
/** /**
@ -972,6 +1005,44 @@ gtk_cell_area_get_property (GObject *object,
/************************************************************* /*************************************************************
* GtkCellAreaClass * * GtkCellAreaClass *
*************************************************************/ *************************************************************/
static void
gtk_cell_area_real_add (GtkCellArea *area,
GtkCellRenderer *renderer)
{
g_warning ("GtkCellAreaClass::add not implemented for `%s'",
g_type_name (G_TYPE_FROM_INSTANCE (area)));
}
static void
gtk_cell_area_real_remove (GtkCellArea *area,
GtkCellRenderer *renderer)
{
g_warning ("GtkCellAreaClass::remove not implemented for `%s'",
g_type_name (G_TYPE_FROM_INSTANCE (area)));
}
static void
gtk_cell_area_real_foreach (GtkCellArea *area,
GtkCellCallback callback,
gpointer callback_data)
{
g_warning ("GtkCellAreaClass::foreach not implemented for `%s'",
g_type_name (G_TYPE_FROM_INSTANCE (area)));
}
static void
gtk_cell_area_real_foreach_alloc (GtkCellArea *area,
GtkCellAreaContext *context,
GtkWidget *widget,
const GdkRectangle *cell_area,
const GdkRectangle *background_area,
GtkCellAllocCallback callback,
gpointer callback_data)
{
g_warning ("GtkCellAreaClass::foreach_alloc not implemented for `%s'",
g_type_name (G_TYPE_FROM_INSTANCE (area)));
}
static gint static gint
gtk_cell_area_real_event (GtkCellArea *area, gtk_cell_area_real_event (GtkCellArea *area,
GtkCellAreaContext *context, GtkCellAreaContext *context,
@ -1245,16 +1316,64 @@ gtk_cell_area_real_apply_attributes (GtkCellArea *area,
gtk_tree_path_free (path); gtk_tree_path_free (path);
} }
static GtkCellAreaContext *
gtk_cell_area_real_create_context (GtkCellArea *area)
{
g_warning ("GtkCellAreaClass::create_context not implemented for `%s'",
g_type_name (G_TYPE_FROM_INSTANCE (area)));
return NULL;
}
static GtkCellAreaContext *
gtk_cell_area_real_copy_context (GtkCellArea *area,
GtkCellAreaContext *context)
{
g_warning ("GtkCellAreaClass::copy_context not implemented for `%s'",
g_type_name (G_TYPE_FROM_INSTANCE (area)));
return NULL;
}
static GtkSizeRequestMode
gtk_cell_area_real_get_request_mode (GtkCellArea *area)
{
/* By default cell areas are height-for-width. */
return GTK_SIZE_REQUEST_HEIGHT_FOR_WIDTH;
}
static void
gtk_cell_area_real_get_preferred_width (GtkCellArea *area,
GtkCellAreaContext *context,
GtkWidget *widget,
gint *minimum_width,
gint *natural_width)
{
g_warning ("GtkCellAreaClass::get_preferred_width not implemented for `%s'",
g_type_name (G_TYPE_FROM_INSTANCE (area)));
}
static void
gtk_cell_area_real_get_preferred_height (GtkCellArea *area,
GtkCellAreaContext *context,
GtkWidget *widget,
gint *minimum_height,
gint *natural_height)
{
g_warning ("GtkCellAreaClass::get_preferred_height not implemented for `%s'",
g_type_name (G_TYPE_FROM_INSTANCE (area)));
}
static void static void
gtk_cell_area_real_get_preferred_height_for_width (GtkCellArea *area, gtk_cell_area_real_get_preferred_height_for_width (GtkCellArea *area,
GtkCellAreaContext *context, GtkCellAreaContext *context,
GtkWidget *widget, GtkWidget *widget,
gint width, gint width,
gint *minimum_height, gint *minimum_height,
gint *natural_height) gint *natural_height)
{ {
/* If the area doesnt do height-for-width, fallback on base preferred height */ /* If the area doesnt do height-for-width, fallback on base preferred height */
GTK_CELL_AREA_GET_CLASS (area)->get_preferred_width (area, context, widget, minimum_height, natural_height); GTK_CELL_AREA_GET_CLASS (area)->get_preferred_height (area, context, widget, minimum_height, natural_height);
} }
static void static void
@ -1360,6 +1479,15 @@ gtk_cell_area_real_activate (GtkCellArea *area,
return FALSE; return FALSE;
} }
static gboolean
gtk_cell_area_real_focus (GtkCellArea *area,
GtkDirectionType direction)
{
g_warning ("GtkCellAreaClass::focus not implemented for `%s'",
g_type_name (G_TYPE_FROM_INSTANCE (area)));
return FALSE;
}
/************************************************************* /*************************************************************
* GtkCellLayoutIface * * GtkCellLayoutIface *
*************************************************************/ *************************************************************/
@ -1517,18 +1645,10 @@ void
gtk_cell_area_add (GtkCellArea *area, gtk_cell_area_add (GtkCellArea *area,
GtkCellRenderer *renderer) GtkCellRenderer *renderer)
{ {
GtkCellAreaClass *class;
g_return_if_fail (GTK_IS_CELL_AREA (area)); g_return_if_fail (GTK_IS_CELL_AREA (area));
g_return_if_fail (GTK_IS_CELL_RENDERER (renderer)); g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
class = GTK_CELL_AREA_GET_CLASS (area); GTK_CELL_AREA_GET_CLASS (area)->add (area, renderer);
if (class->add)
class->add (area, renderer);
else
g_warning ("GtkCellAreaClass::add not implemented for `%s'",
g_type_name (G_TYPE_FROM_INSTANCE (area)));
} }
/** /**
@ -1544,14 +1664,12 @@ void
gtk_cell_area_remove (GtkCellArea *area, gtk_cell_area_remove (GtkCellArea *area,
GtkCellRenderer *renderer) GtkCellRenderer *renderer)
{ {
GtkCellAreaClass *class;
GtkCellAreaPrivate *priv; GtkCellAreaPrivate *priv;
GList *renderers, *l; GList *renderers, *l;
g_return_if_fail (GTK_IS_CELL_AREA (area)); g_return_if_fail (GTK_IS_CELL_AREA (area));
g_return_if_fail (GTK_IS_CELL_RENDERER (renderer)); g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
class = GTK_CELL_AREA_GET_CLASS (area);
priv = area->priv; priv = area->priv;
/* Remove any custom attributes and custom cell data func here first */ /* Remove any custom attributes and custom cell data func here first */
@ -1576,11 +1694,7 @@ gtk_cell_area_remove (GtkCellArea *area,
g_list_free (renderers); g_list_free (renderers);
if (class->remove) GTK_CELL_AREA_GET_CLASS (area)->remove (area, renderer);
class->remove (area, renderer);
else
g_warning ("GtkCellAreaClass::remove not implemented for `%s'",
g_type_name (G_TYPE_FROM_INSTANCE (area)));
} }
static gboolean static gboolean
@ -1633,18 +1747,10 @@ gtk_cell_area_foreach (GtkCellArea *area,
GtkCellCallback callback, GtkCellCallback callback,
gpointer callback_data) gpointer callback_data)
{ {
GtkCellAreaClass *class;
g_return_if_fail (GTK_IS_CELL_AREA (area)); g_return_if_fail (GTK_IS_CELL_AREA (area));
g_return_if_fail (callback != NULL); g_return_if_fail (callback != NULL);
class = GTK_CELL_AREA_GET_CLASS (area); GTK_CELL_AREA_GET_CLASS (area)->foreach (area, callback, callback_data);
if (class->foreach)
class->foreach (area, callback, callback_data);
else
g_warning ("GtkCellAreaClass::foreach not implemented for `%s'",
g_type_name (G_TYPE_FROM_INSTANCE (area)));
} }
/** /**
@ -1671,21 +1777,15 @@ gtk_cell_area_foreach_alloc (GtkCellArea *area,
GtkCellAllocCallback callback, GtkCellAllocCallback callback,
gpointer callback_data) gpointer callback_data)
{ {
GtkCellAreaClass *class;
g_return_if_fail (GTK_IS_CELL_AREA (area)); g_return_if_fail (GTK_IS_CELL_AREA (area));
g_return_if_fail (GTK_IS_CELL_AREA_CONTEXT (context)); g_return_if_fail (GTK_IS_CELL_AREA_CONTEXT (context));
g_return_if_fail (GTK_IS_WIDGET (widget)); g_return_if_fail (GTK_IS_WIDGET (widget));
g_return_if_fail (cell_area != NULL); g_return_if_fail (cell_area != NULL);
g_return_if_fail (callback != NULL); g_return_if_fail (callback != NULL);
class = GTK_CELL_AREA_GET_CLASS (area); GTK_CELL_AREA_GET_CLASS (area)->foreach_alloc (area, context, widget,
cell_area, background_area,
if (class->foreach_alloc) callback, callback_data);
class->foreach_alloc (area, context, widget, cell_area, background_area, callback, callback_data);
else
g_warning ("GtkCellAreaClass::foreach_alloc not implemented for `%s'",
g_type_name (G_TYPE_FROM_INSTANCE (area)));
} }
/** /**
@ -1906,19 +2006,9 @@ gtk_cell_area_get_cell_at_position (GtkCellArea *area,
GtkCellAreaContext * GtkCellAreaContext *
gtk_cell_area_create_context (GtkCellArea *area) gtk_cell_area_create_context (GtkCellArea *area)
{ {
GtkCellAreaClass *class;
g_return_val_if_fail (GTK_IS_CELL_AREA (area), NULL); g_return_val_if_fail (GTK_IS_CELL_AREA (area), NULL);
class = GTK_CELL_AREA_GET_CLASS (area); return GTK_CELL_AREA_GET_CLASS (area)->create_context (area);
if (class->create_context)
return class->create_context (area);
g_warning ("GtkCellAreaClass::create_context not implemented for `%s'",
g_type_name (G_TYPE_FROM_INSTANCE (area)));
return NULL;
} }
/** /**
@ -1946,20 +2036,10 @@ GtkCellAreaContext *
gtk_cell_area_copy_context (GtkCellArea *area, gtk_cell_area_copy_context (GtkCellArea *area,
GtkCellAreaContext *context) GtkCellAreaContext *context)
{ {
GtkCellAreaClass *class;
g_return_val_if_fail (GTK_IS_CELL_AREA (area), NULL); g_return_val_if_fail (GTK_IS_CELL_AREA (area), NULL);
g_return_val_if_fail (GTK_IS_CELL_AREA_CONTEXT (context), NULL); g_return_val_if_fail (GTK_IS_CELL_AREA_CONTEXT (context), NULL);
class = GTK_CELL_AREA_GET_CLASS (area); return GTK_CELL_AREA_GET_CLASS (area)->copy_context (area, context);
if (class->copy_context)
return class->copy_context (area, context);
g_warning ("GtkCellAreaClass::copy_context not implemented for `%s'",
g_type_name (G_TYPE_FROM_INSTANCE (area)));
return NULL;
} }
/** /**
@ -1976,20 +2056,10 @@ gtk_cell_area_copy_context (GtkCellArea *area,
GtkSizeRequestMode GtkSizeRequestMode
gtk_cell_area_get_request_mode (GtkCellArea *area) gtk_cell_area_get_request_mode (GtkCellArea *area)
{ {
GtkCellAreaClass *class;
g_return_val_if_fail (GTK_IS_CELL_AREA (area), g_return_val_if_fail (GTK_IS_CELL_AREA (area),
GTK_SIZE_REQUEST_HEIGHT_FOR_WIDTH); GTK_SIZE_REQUEST_HEIGHT_FOR_WIDTH);
class = GTK_CELL_AREA_GET_CLASS (area); return GTK_CELL_AREA_GET_CLASS (area)->get_request_mode (area);
if (class->get_request_mode)
return class->get_request_mode (area);
g_warning ("GtkCellAreaClass::get_request_mode not implemented for `%s'",
g_type_name (G_TYPE_FROM_INSTANCE (area)));
return GTK_SIZE_REQUEST_HEIGHT_FOR_WIDTH;
} }
/** /**
@ -2017,18 +2087,11 @@ gtk_cell_area_get_preferred_width (GtkCellArea *area,
gint *minimum_width, gint *minimum_width,
gint *natural_width) gint *natural_width)
{ {
GtkCellAreaClass *class;
g_return_if_fail (GTK_IS_CELL_AREA (area)); g_return_if_fail (GTK_IS_CELL_AREA (area));
g_return_if_fail (GTK_IS_WIDGET (widget)); g_return_if_fail (GTK_IS_WIDGET (widget));
class = GTK_CELL_AREA_GET_CLASS (area); GTK_CELL_AREA_GET_CLASS (area)->get_preferred_width (area, context, widget,
minimum_width, natural_width);
if (class->get_preferred_width)
class->get_preferred_width (area, context, widget, minimum_width, natural_width);
else
g_warning ("GtkCellAreaClass::get_preferred_width not implemented for `%s'",
g_type_name (G_TYPE_FROM_INSTANCE (area)));
} }
/** /**
@ -2100,18 +2163,11 @@ gtk_cell_area_get_preferred_height (GtkCellArea *area,
gint *minimum_height, gint *minimum_height,
gint *natural_height) gint *natural_height)
{ {
GtkCellAreaClass *class;
g_return_if_fail (GTK_IS_CELL_AREA (area)); g_return_if_fail (GTK_IS_CELL_AREA (area));
g_return_if_fail (GTK_IS_WIDGET (widget)); g_return_if_fail (GTK_IS_WIDGET (widget));
class = GTK_CELL_AREA_GET_CLASS (area); GTK_CELL_AREA_GET_CLASS (area)->get_preferred_height (area, context, widget,
minimum_height, natural_height);
if (class->get_preferred_height)
class->get_preferred_height (area, context, widget, minimum_height, natural_height);
else
g_warning ("GtkCellAreaClass::get_preferred_height not implemented for `%s'",
g_type_name (G_TYPE_FROM_INSTANCE (area)));
} }
/** /**
@ -2842,19 +2898,9 @@ gboolean
gtk_cell_area_focus (GtkCellArea *area, gtk_cell_area_focus (GtkCellArea *area,
GtkDirectionType direction) GtkDirectionType direction)
{ {
GtkCellAreaClass *class;
g_return_val_if_fail (GTK_IS_CELL_AREA (area), FALSE); g_return_val_if_fail (GTK_IS_CELL_AREA (area), FALSE);
class = GTK_CELL_AREA_GET_CLASS (area); return GTK_CELL_AREA_GET_CLASS (area)->focus (area, direction);
if (class->focus)
return class->focus (area, direction);
g_warning ("GtkCellAreaClass::focus not implemented for `%s'",
g_type_name (G_TYPE_FROM_INSTANCE (area)));
return FALSE;
} }
/** /**