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app: add virtual function gboolean GimpCanvasItem::hit()

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and implement it for GimpCanvasHandle and GimpCanvasGroup.
This commit is contained in:
Michael Natterer
2011-03-28 18:54:02 +02:00
parent b529d556fa
commit e03a25caeb
4 changed files with 110 additions and 0 deletions
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28
app/display/gimpcanvasitem.c
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@ -96,6 +96,10 @@ static void gimp_canvas_item_real_stroke (GimpCanvasItem *ite
static void gimp_canvas_item_real_fill (GimpCanvasItem *item,
GimpDisplayShell *shell,
cairo_t *cr);
static gboolean gimp_canvas_item_real_hit (GimpCanvasItem *item,
GimpDisplayShell *shell,
gdouble x,
gdouble y);
G_DEFINE_TYPE (GimpCanvasItem, gimp_canvas_item,
@ -121,6 +125,7 @@ gimp_canvas_item_class_init (GimpCanvasItemClass *klass)
klass->get_extents = gimp_canvas_item_real_get_extents;
klass->stroke = gimp_canvas_item_real_stroke;
klass->fill = gimp_canvas_item_real_fill;
klass->hit = gimp_canvas_item_real_hit;
item_signals[UPDATE] =
g_signal_new ("update",
@ -318,6 +323,15 @@ gimp_canvas_item_real_fill (GimpCanvasItem *item,
cairo_fill (cr);
}
static gboolean
gimp_canvas_item_real_hit (GimpCanvasItem *item,
GimpDisplayShell *shell,
gdouble x,
gdouble y)
{
return FALSE;
}
/* public functions */
@ -355,6 +369,20 @@ gimp_canvas_item_get_extents (GimpCanvasItem *item)
return NULL;
}
gboolean
gimp_canvas_item_hit (GimpCanvasItem *item,
gdouble x,
gdouble y)
{
GimpCanvasItemPrivate *private;
g_return_val_if_fail (GIMP_IS_CANVAS_ITEM (item), NULL);
private = GET_PRIVATE (item);
return GIMP_CANVAS_ITEM_GET_CLASS (item)->hit (item, private->shell, x, y);
}
void
gimp_canvas_item_set_visible (GimpCanvasItem *item,
gboolean visible)