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Refactor LdDiagram selection handling methods.

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Add ld_diagram_remove_selection().
This commit is contained in:
Přemysl Eric Janouch 2011-01-16 15:08:51 +01:00
parent 6854c8a643
commit 60a00e3551
3 changed files with 56 additions and 19 deletions
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2
liblogdiag/ld-canvas.c
View File

@ -1197,7 +1197,7 @@ on_button_press (GtkWidget *widget, GdkEventButton *event, gpointer user_data)
object = get_object_at_coords (self, event->x, event->y); object = get_object_at_coords (self, event->x, event->y);
if (object) if (object)
ld_diagram_selection_add (self->priv->diagram, object, 0); ld_diagram_select (self->priv->diagram, object);
} }
break; break;
} }

59
liblogdiag/ld-diagram.c
View File

@ -227,6 +227,8 @@ ld_diagram_clear (LdDiagram *self)
g_signal_emit (self, g_signal_emit (self,
LD_DIAGRAM_GET_CLASS (self)->changed_signal, 0); LD_DIAGRAM_GET_CLASS (self)->changed_signal, 0);
g_signal_emit (self,
LD_DIAGRAM_GET_CLASS (self)->selection_changed_signal, 0);
} }
/* /*
@ -238,7 +240,7 @@ ld_diagram_clear (LdDiagram *self)
static void static void
ld_diagram_clear_internal (LdDiagram *self) ld_diagram_clear_internal (LdDiagram *self)
{ {
ld_diagram_unselect_all (self); ld_diagram_unselect_all_internal (self);
g_list_free (self->priv->connections); g_list_free (self->priv->connections);
self->priv->connections = NULL; self->priv->connections = NULL;
@ -582,7 +584,7 @@ ld_diagram_remove_object (LdDiagram *self, LdDiagramObject *object)
if (g_list_find (self->priv->objects, object)) if (g_list_find (self->priv->objects, object))
{ {
ld_diagram_selection_remove (self, object); ld_diagram_unselect (self, object);
self->priv->objects = g_list_remove (self->priv->objects, object); self->priv->objects = g_list_remove (self->priv->objects, object);
g_object_unref (object); g_object_unref (object);
@ -607,16 +609,51 @@ ld_diagram_get_selection (LdDiagram *self)
} }
/** /**
* ld_diagram_selection_add: * ld_diagram_remove_selection:
* @self: An #LdDiagram object.
*
* Remove selected objects from the diagram.
*/
void
ld_diagram_remove_selection (LdDiagram *self)
{
gboolean changed = FALSE;
GList *iter;
g_return_if_fail (LD_IS_DIAGRAM (self));
for (iter = self->priv->selection; iter; iter = g_list_next (iter))
{
LdDiagramObject *object;
changed = TRUE;
object = LD_DIAGRAM_OBJECT (iter->data);
self->priv->objects = g_list_remove (self->priv->objects, object);
g_object_unref (object);
g_object_unref (object);
}
g_list_free (self->priv->selection);
self->priv->selection = NULL;
if (changed)
{
g_signal_emit (self,
LD_DIAGRAM_GET_CLASS (self)->changed_signal, 0);
g_signal_emit (self,
LD_DIAGRAM_GET_CLASS (self)->selection_changed_signal, 0);
}
}
/**
* ld_diagram_select:
* @self: An #LdDiagram object. * @self: An #LdDiagram object.
* @object: The object to be added to the selection. * @object: The object to be added to the selection.
* @pos: The position at which the object is to be inserted.
* Negative values will append to the end.
* *
* Add an object to selection. * Add an object to selection.
*/ */
void void
ld_diagram_selection_add (LdDiagram *self, LdDiagramObject *object, gint pos) ld_diagram_select (LdDiagram *self, LdDiagramObject *object)
{ {
g_return_if_fail (LD_IS_DIAGRAM (self)); g_return_if_fail (LD_IS_DIAGRAM (self));
g_return_if_fail (LD_IS_DIAGRAM_OBJECT (object)); g_return_if_fail (LD_IS_DIAGRAM_OBJECT (object));
@ -626,7 +663,7 @@ ld_diagram_selection_add (LdDiagram *self, LdDiagramObject *object, gint pos)
if (!g_list_find (self->priv->selection, object)) if (!g_list_find (self->priv->selection, object))
{ {
self->priv->selection = self->priv->selection =
g_list_insert (self->priv->selection, object, pos); g_list_insert (self->priv->selection, object, 0);
g_object_ref (object); g_object_ref (object);
g_signal_emit (self, g_signal_emit (self,
@ -635,14 +672,14 @@ ld_diagram_selection_add (LdDiagram *self, LdDiagramObject *object, gint pos)
} }
/** /**
* ld_diagram_selection_remove: * ld_diagram_unselect:
* @self: An #LdDiagram object. * @self: An #LdDiagram object.
* @object: The object to be removed from the selection. * @object: The object to be removed from the selection.
* *
* Remove an object from the selection. * Remove an object from the selection.
*/ */
void void
ld_diagram_selection_remove (LdDiagram *self, LdDiagramObject *object) ld_diagram_unselect (LdDiagram *self, LdDiagramObject *object)
{ {
g_return_if_fail (LD_IS_DIAGRAM (self)); g_return_if_fail (LD_IS_DIAGRAM (self));
g_return_if_fail (LD_IS_DIAGRAM_OBJECT (object)); g_return_if_fail (LD_IS_DIAGRAM_OBJECT (object));
@ -688,11 +725,13 @@ ld_diagram_unselect_all (LdDiagram *self)
{ {
g_return_if_fail (LD_IS_DIAGRAM (self)); g_return_if_fail (LD_IS_DIAGRAM (self));
if (self->priv->selection)
{
ld_diagram_unselect_all_internal (self); ld_diagram_unselect_all_internal (self);
g_signal_emit (self, g_signal_emit (self,
LD_DIAGRAM_GET_CLASS (self)->selection_changed_signal, 0); LD_DIAGRAM_GET_CLASS (self)->selection_changed_signal, 0);
} }
}
static void static void
ld_diagram_unselect_all_internal (LdDiagram *self) ld_diagram_unselect_all_internal (LdDiagram *self)

8
liblogdiag/ld-diagram.h
View File

@ -97,12 +97,10 @@ void ld_diagram_remove_object (LdDiagram *self,
LdDiagramObject *object); LdDiagramObject *object);
GList *ld_diagram_get_selection (LdDiagram *self); GList *ld_diagram_get_selection (LdDiagram *self);
void ld_diagram_selection_add (LdDiagram *self, void ld_diagram_remove_selection (LdDiagram *self);
LdDiagramObject *object, gint pos); void ld_diagram_select (LdDiagram *self, LdDiagramObject *object);
void ld_diagram_selection_remove (LdDiagram *self,
LdDiagramObject *object);
void ld_diagram_select_all (LdDiagram *self); void ld_diagram_select_all (LdDiagram *self);
void ld_diagram_unselect (LdDiagram *self, LdDiagramObject *object);
void ld_diagram_unselect_all (LdDiagram *self); void ld_diagram_unselect_all (LdDiagram *self);
/* /*