diff options
Diffstat (limited to 'gtk/gtkgridview.c')
| -rw-r--r-- | gtk/gtkgridview.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/gtk/gtkgridview.c b/gtk/gtkgridview.c index ac3d49cdda..3a1b96098e 100644 --- a/gtk/gtkgridview.c +++ b/gtk/gtkgridview.c @@ -21,6 +21,7 @@ #include "gtkgridview.h" +#include "gtkbitset.h" #include "gtkintl.h" #include "gtklistbaseprivate.h" #include "gtklistitemfactory.h" @@ -452,6 +453,36 @@ gtk_grid_view_get_position_from_allocation (GtkListBase *base, return TRUE; } +static GtkBitset * +gtk_grid_view_get_items_in_rect (GtkListBase *base, + const GdkRectangle *rect) +{ + GtkGridView *self = GTK_GRID_VIEW (base); + guint first_row, last_row, first_column, last_column, n_items; + GtkBitset *result; + + result = gtk_bitset_new_empty (); + + n_items = gtk_list_base_get_n_items (base); + if (n_items == 0) + return result; + + first_column = floor (rect->x / self->column_width); + last_column = floor ((rect->x + rect->width) / self->column_width); + if (!gtk_grid_view_get_cell_at_y (self, rect->y, &first_row, NULL, NULL)) + first_row = rect->y < 0 ? 0 : n_items - 1; + if (!gtk_grid_view_get_cell_at_y (self, rect->y + rect->height, &last_row, NULL, NULL)) + last_row = rect->y < 0 ? 0 : n_items - 1; + + gtk_bitset_add_rectangle (result, + first_row + first_column, + last_column - first_column + 1, + (last_row - first_row) / self->n_columns + 1, + self->n_columns); + + return result; +} + static guint gtk_grid_view_move_focus_along (GtkListBase *base, guint pos, @@ -1000,6 +1031,7 @@ gtk_grid_view_class_init (GtkGridViewClass *klass) list_base_class->list_item_augment_func = cell_augment; list_base_class->get_allocation_along = gtk_grid_view_get_allocation_along; list_base_class->get_allocation_across = gtk_grid_view_get_allocation_across; + list_base_class->get_items_in_rect = gtk_grid_view_get_items_in_rect; list_base_class->get_position_from_allocation = gtk_grid_view_get_position_from_allocation; list_base_class->move_focus_along = gtk_grid_view_move_focus_along; list_base_class->move_focus_across = gtk_grid_view_move_focus_across; |