+
+ cairo_close_path (cr);
+}
+
+double
+_gtk_rounded_box_guess_length (const GtkRoundedBox *box,
+ GtkCssSide side)
+{
+ double length;
+ GtkCssSide before, after;
+
+ before = side;
+ after = (side + 1) % 4;
+
+ if (side & 1)
+ length = box->box.height
+ - box->corner[before].vertical
+ - box->corner[after].vertical;
+ else
+ length = box->box.width
+ - box->corner[before].horizontal
+ - box->corner[after].horizontal;
+
+ length += G_PI * 0.125 * (box->corner[before].horizontal
+ + box->corner[before].vertical
+ + box->corner[after].horizontal
+ + box->corner[after].vertical);
+
+ return length;
+}
+
+void
+_gtk_rounded_box_path_side (const GtkRoundedBox *box,
+ cairo_t *cr,
+ GtkCssSide side)
+{
+ switch (side)
+ {
+ case GTK_CSS_TOP:
+ _cairo_ellipsis (cr,
+ box->box.x + box->corner[GTK_CSS_TOP_LEFT].horizontal,
+ box->box.y + box->corner[GTK_CSS_TOP_LEFT].vertical,
+ box->corner[GTK_CSS_TOP_LEFT].horizontal,
+ box->corner[GTK_CSS_TOP_LEFT].vertical,
+ 5 * G_PI / 4, 3 * G_PI / 2);
+ _cairo_ellipsis (cr,
+ box->box.x + box->box.width - box->corner[GTK_CSS_TOP_RIGHT].horizontal,
+ box->box.y + box->corner[GTK_CSS_TOP_RIGHT].vertical,
+ box->corner[GTK_CSS_TOP_RIGHT].horizontal,
+ box->corner[GTK_CSS_TOP_RIGHT].vertical,
+ - G_PI / 2, -G_PI / 4);
+ break;
+ case GTK_CSS_RIGHT:
+ _cairo_ellipsis (cr,
+ box->box.x + box->box.width - box->corner[GTK_CSS_TOP_RIGHT].horizontal,
+ box->box.y + box->corner[GTK_CSS_TOP_RIGHT].vertical,
+ box->corner[GTK_CSS_TOP_RIGHT].horizontal,
+ box->corner[GTK_CSS_TOP_RIGHT].vertical,
+ - G_PI / 4, 0);
+ _cairo_ellipsis (cr,
+ box->box.x + box->box.width - box->corner[GTK_CSS_BOTTOM_RIGHT].horizontal,
+ box->box.y + box->box.height - box->corner[GTK_CSS_BOTTOM_RIGHT].vertical,
+ box->corner[GTK_CSS_BOTTOM_RIGHT].horizontal,
+ box->corner[GTK_CSS_BOTTOM_RIGHT].vertical,
+ 0, G_PI / 4);
+ break;
+ case GTK_CSS_BOTTOM:
+ _cairo_ellipsis (cr,
+ box->box.x + box->box.width - box->corner[GTK_CSS_BOTTOM_RIGHT].horizontal,
+ box->box.y + box->box.height - box->corner[GTK_CSS_BOTTOM_RIGHT].vertical,
+ box->corner[GTK_CSS_BOTTOM_RIGHT].horizontal,
+ box->corner[GTK_CSS_BOTTOM_RIGHT].vertical,
+ G_PI / 4, G_PI / 2);
+ _cairo_ellipsis (cr,
+ box->box.x + box->corner[GTK_CSS_BOTTOM_LEFT].horizontal,
+ box->box.y + box->box.height - box->corner[GTK_CSS_BOTTOM_LEFT].vertical,
+ box->corner[GTK_CSS_BOTTOM_LEFT].horizontal,
+ box->corner[GTK_CSS_BOTTOM_LEFT].vertical,
+ G_PI / 2, 3 * G_PI / 4);
+ break;
+ case GTK_CSS_LEFT:
+ _cairo_ellipsis (cr,
+ box->box.x + box->corner[GTK_CSS_BOTTOM_LEFT].horizontal,
+ box->box.y + box->box.height - box->corner[GTK_CSS_BOTTOM_LEFT].vertical,
+ box->corner[GTK_CSS_BOTTOM_LEFT].horizontal,
+ box->corner[GTK_CSS_BOTTOM_LEFT].vertical,
+ 3 * G_PI / 4, G_PI);
+ _cairo_ellipsis (cr,
+ box->box.x + box->corner[GTK_CSS_TOP_LEFT].horizontal,
+ box->box.y + box->corner[GTK_CSS_TOP_LEFT].vertical,
+ box->corner[GTK_CSS_TOP_LEFT].horizontal,
+ box->corner[GTK_CSS_TOP_LEFT].vertical,
+ G_PI, 5 * G_PI / 4);
+ break;
+ default:
+ g_assert_not_reached ();
+ break;
+ }