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listbase: Only compute the modifiers when releasing the rubberband

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... and do the right things:

nothing:    selection = rubberband
ctrl:       selection = selection OR rubberband
shift:      selection = selection AND (NOT rubberband)
ctrl+shift: selection = selection XOR rubberband
            (not sure this one makes sense, but toggling is fun)
This commit is contained in:
Benjamin Otte 2020-06-26 03:26:11 +02:00
parent a5949960bc
commit 30488e60e2
1 changed files with 41 additions and 23 deletions
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64
gtk/gtklistbase.c
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@ -48,8 +48,6 @@ struct _RubberbandData
double start_align_along; /* alignment in vertical direction */
double pointer_x, pointer_y; /* mouse coordinates in widget space */
gboolean modify;
gboolean extend;
};
typedef struct _GtkListBasePrivate GtkListBasePrivate;
@ -1506,9 +1504,7 @@ gtk_list_base_allocate_rubberband (GtkListBase *self)
static void
gtk_list_base_start_rubberband (GtkListBase *self,
double x,
double y,
gboolean modify,
gboolean extend)
double y)
{
GtkListBasePrivate *priv = gtk_list_base_get_instance_private (self);
cairo_rectangle_int_t item_area;
@ -1535,16 +1531,15 @@ gtk_list_base_start_rubberband (GtkListBase *self,
priv->rubberband->pointer_x = x;
priv->rubberband->pointer_y = y;
priv->rubberband->modify = modify;
priv->rubberband->extend = extend;
priv->rubberband->widget = gtk_gizmo_new ("rubberband",
NULL, NULL, NULL, NULL, NULL, NULL);
gtk_widget_set_parent (priv->rubberband->widget, GTK_WIDGET (self));
}
static void
gtk_list_base_stop_rubberband (GtkListBase *self)
gtk_list_base_stop_rubberband (GtkListBase *self,
gboolean modify,
gboolean extend)
{
GtkListBasePrivate *priv = gtk_list_base_get_instance_private (self);
GtkListItemManagerItem *item;
@ -1572,22 +1567,46 @@ gtk_list_base_stop_rubberband (GtkListBase *self)
return;
rubberband_selection = gtk_list_base_get_items_in_rect (self, &rect);
if (priv->rubberband->extend)
if (gtk_bitset_is_empty (rubberband_selection))
{
gtk_bitset_unref (rubberband_selection);
return;
}
if (modify && extend) /* Ctrl + Shift */
{
GtkBitset *current;
guint min = gtk_bitset_get_minimum (rubberband_selection);
guint max = gtk_bitset_get_maximum (rubberband_selection);
/* toggle the rubberband, keep the rest */
current = gtk_selection_model_get_selection_in_range (model, min, max - min + 1);
selected = gtk_bitset_copy (current);
gtk_bitset_unref (current);
gtk_bitset_intersect (selected, rubberband_selection);
gtk_bitset_difference (selected, rubberband_selection);
mask = gtk_bitset_ref (rubberband_selection);
}
else
else if (modify) /* Ctrl */
{
/* select the rubberband, keep the rest */
selected = gtk_bitset_ref (rubberband_selection);
mask = gtk_bitset_ref (rubberband_selection);
}
else if (extend) /* Shift */
{
/* unselect the rubberband, keep the rest */
selected = gtk_bitset_new_empty ();
mask = gtk_bitset_ref (rubberband_selection);
}
else /* no modifer */
{
/* select the rubberband, clear the rest */
selected = gtk_bitset_ref (rubberband_selection);
mask = gtk_bitset_new_empty ();
gtk_bitset_add_range (mask, 0, g_list_model_get_n_items (G_LIST_MODEL (model)));
}
if (priv->rubberband->modify)
selected = gtk_bitset_new_empty ();
else
selected = gtk_bitset_ref (rubberband_selection);
gtk_selection_model_set_selection (model, selected, mask);
gtk_bitset_unref (selected);
@ -1683,11 +1702,7 @@ gtk_list_base_drag_begin (GtkGestureDrag *gesture,
double start_y,
GtkListBase *self)
{
gboolean modify;
gboolean extend;
get_selection_modifiers (GTK_GESTURE (gesture), &modify, &extend);
gtk_list_base_start_rubberband (self, start_x, start_y, modify, extend);
gtk_list_base_start_rubberband (self, start_x, start_y);
}
static void
@ -1707,8 +1722,11 @@ gtk_list_base_drag_end (GtkGestureDrag *gesture,
double offset_y,
GtkListBase *self)
{
gboolean modify, extend;
gtk_list_base_drag_update (gesture, offset_x, offset_y, self);
gtk_list_base_stop_rubberband (self);
get_selection_modifiers (GTK_GESTURE (gesture), &modify, &extend);
gtk_list_base_stop_rubberband (self, modify, extend);
}
void