diff options
Diffstat (limited to 'libgnomecanvas')
| -rw-r--r-- | libgnomecanvas/gailcanvasitem.c | 171 |
1 files changed, 32 insertions, 139 deletions
diff --git a/libgnomecanvas/gailcanvasitem.c b/libgnomecanvas/gailcanvasitem.c index 2e4232d65d..1c08d66f5f 100644 --- a/libgnomecanvas/gailcanvasitem.c +++ b/libgnomecanvas/gailcanvasitem.c @@ -45,15 +45,9 @@ static void gail_canvas_item_remove_focus_handler (AtkComponent *compo guint handler_id); static gboolean is_item_on_screen (GnomeCanvasItem *item); static void get_item_extents (GnomeCanvasItem *item, - gint *x, - gint *y, - gint *width, - gint *height); + GdkRectangle *extents); static gboolean is_item_in_window (GnomeCanvasItem *item, - gint x, - gint y, - gint width, - gint height); + const GdkRectangle *extents); static AtkGObjectAccessibleClass *parent_class = NULL; @@ -274,7 +268,7 @@ gail_canvas_item_get_extents (AtkComponent *component, GnomeCanvasItem *item; gint window_x, window_y; gint toplevel_x, toplevel_y; - gint local_x, local_y; + GdkRectangle extents; g_return_if_fail (GAIL_IS_CANVAS_ITEM (component)); atk_gobj = ATK_GOBJECT_ACCESSIBLE (component); @@ -290,8 +284,10 @@ gail_canvas_item_get_extents (AtkComponent *component, /* If this item has no parent canvas, something's broken */ g_return_if_fail (GTK_IS_WIDGET (item->canvas)); - get_item_extents (item, &local_x, &local_y, width, height); - if (!is_item_in_window (item, local_x, local_y, *width, *height)) + get_item_extents (item, &extents); + *width = extents.width; + *height = extents.height; + if (!is_item_in_window (item, &extents)) { *x = G_MININT; *y = G_MININT; @@ -300,8 +296,8 @@ gail_canvas_item_get_extents (AtkComponent *component, gail_misc_get_origins (GTK_WIDGET (item->canvas), &window_x, &window_y, &toplevel_x, &toplevel_y); - *x = local_x + window_x - toplevel_x; - *y = local_y + window_y - toplevel_y; + *x = extents.x + window_x - toplevel_x; + *y = extents.y + window_y - toplevel_y; /* If screen coordinates are requested, modify x and y appropriately */ if (coord_type == ATK_XY_SCREEN) @@ -356,131 +352,39 @@ gail_canvas_item_remove_focus_handler (AtkComponent *component, static gboolean is_item_on_screen (GnomeCanvasItem *item) { - gint x, y, width, height; + GdkRectangle extents; - get_item_extents (item, &x, &y, &width, &height); - return is_item_in_window (item, x, y, width, height); + get_item_extents (item, &extents); + return is_item_in_window (item, &extents); } static void get_item_extents (GnomeCanvasItem *item, - gint *x, - gint *y, - gint *width, - gint *height) + GdkRectangle *extents) { - gdouble bx1, by1, bx2, by2; - gdouble i2c[6]; - ArtPoint p1, p2, p3, p4; - ArtPoint q1, q2, q3, q4; - gdouble min_x1, min_y1, min_x2, min_y2; - gdouble max_x1, max_y1, max_x2, max_y2; - gint x1, y1, x2, y2; - gint scroll_x, scroll_y; + double x1, x2, y1, y2; + cairo_matrix_t i2c; - /* Get the bounding box in item-relative coordinates */ - - bx1 = by1 = bx2 = by2 = 0.0; + x1 = y1 = x2 = y2 = 0.0; if (GNOME_CANVAS_ITEM_CLASS (G_OBJECT_GET_CLASS (item))->bounds) GNOME_CANVAS_ITEM_CLASS (G_OBJECT_GET_CLASS (item))->bounds ( - item, &bx1, &by1, &bx2, &by2); + item, &x1, &y1, &x2, &y2); /* Get the item coordinates -> canvas pixel coordinates affine */ - gnome_canvas_item_i2c_affine (item, i2c); - - /* Convert the bounding box to canvas pixel coordinates and find its minimum - * surrounding rectangle. - */ - - p1.x = p2.x = bx1; - p1.y = p4.y = by1; - p3.x = p4.x = bx2; - p2.y = p3.y = by2; - - art_affine_point (&q1, &p1, i2c); - art_affine_point (&q2, &p2, i2c); - art_affine_point (&q3, &p3, i2c); - art_affine_point (&q4, &p4, i2c); - - if (q1.x < q2.x) - { - min_x1 = q1.x; - max_x1 = q2.x; - } - else - { - min_x1 = q2.x; - max_x1 = q1.x; - } - - if (q1.y < q2.y) - { - min_y1 = q1.y; - max_y1 = q2.y; - } - else - { - min_y1 = q2.y; - max_y1 = q1.y; - } + gnome_canvas_item_i2c_matrix (item, &i2c); + gnome_canvas_matrix_transform_rect (&i2c, &x1, &y1, &x2, &y2); - if (q3.x < q4.x) - { - min_x2 = q3.x; - max_x2 = q4.x; - } - else - { - min_x2 = q4.x; - max_x2 = q3.x; - } - - if (q3.y < q4.y) - { - min_y2 = q3.y; - max_y2 = q4.y; - } - else - { - min_y2 = q4.y; - max_y2 = q3.y; - } - - bx1 = MIN (min_x1, min_x2); - by1 = MIN (min_y1, min_y2); - bx2 = MAX (max_x1, max_x2); - by2 = MAX (max_y1, max_y2); - - /* Convert to integer coordinates */ - - x1 = floor (bx1); - y1 = floor (by1); - x2 = ceil (bx2); - y2 = ceil (by2); - - gnome_canvas_get_scroll_offsets (item->canvas, &scroll_x, &scroll_y); - - if (x) - *x = x1 - scroll_x; - - if (y) - *y = y1 - scroll_y; - - if (width) - *width = x2 - x1; - - if (height) - *height = y2 - y1; + extents->x = floor (x1); + extents->y = floor (y1); + extents->width = ceil (x2) - extents->x; + extents->height = ceil (y2) - extents->y; } static gboolean -is_item_in_window (GnomeCanvasItem *item, - gint x, - gint y, - gint width, - gint height) +is_item_in_window (GnomeCanvasItem *item, + const GdkRectangle *extents) { GtkWidget *widget; GdkWindow *window; @@ -490,24 +394,13 @@ is_item_in_window (GnomeCanvasItem *item, window = gtk_widget_get_window (widget); if (window) { - gint window_width, window_height; - - gdk_window_get_geometry (window, NULL, NULL, - &window_width, &window_height, NULL); - /* - * Check whether rectangles intersect - */ - if (x + width <= 0 || - y + height <= 0 || - x > window_width || - y > window_height) - { - retval = FALSE; - } - else - { - retval = TRUE; - } + GdkRectangle window_rect; + + window_rect.x = 0; + window_rect.y = 0; + gdk_drawable_get_size (window, &window_rect.width, &window_rect.height); + + retval = gdk_rectangle_intersect (extents, &window_rect, NULL); } else { |