diff options
Diffstat (limited to 'thirdparty/harfbuzz/src/hb-subset-input.cc')
| -rw-r--r-- | thirdparty/harfbuzz/src/hb-subset-input.cc | 49 |
1 files changed, 47 insertions, 2 deletions
diff --git a/thirdparty/harfbuzz/src/hb-subset-input.cc b/thirdparty/harfbuzz/src/hb-subset-input.cc index 465af50814..e6b23df704 100644 --- a/thirdparty/harfbuzz/src/hb-subset-input.cc +++ b/thirdparty/harfbuzz/src/hb-subset-input.cc @@ -438,7 +438,8 @@ hb_subset_input_pin_axis_to_default (hb_subset_input_t *input, if (!hb_ot_var_find_axis_info (face, axis_tag, &axis_info)) return false; - return input->axes_location.set (axis_tag, axis_info.default_value); + float default_val = axis_info.default_value; + return input->axes_location.set (axis_tag, Triple (default_val, default_val, default_val)); } /** @@ -468,8 +469,52 @@ hb_subset_input_pin_axis_location (hb_subset_input_t *input, return false; float val = hb_clamp(axis_value, axis_info.min_value, axis_info.max_value); - return input->axes_location.set (axis_tag, val); + return input->axes_location.set (axis_tag, Triple (val, val, val)); } + +#ifdef HB_EXPERIMENTAL_API +/** + * hb_subset_input_set_axis_range: (skip) + * @input: a #hb_subset_input_t object. + * @face: a #hb_face_t object. + * @axis_tag: Tag of the axis + * @axis_min_value: Minimum value of the axis variation range to set + * @axis_max_value: Maximum value of the axis variation range to set + * + * Restricting the range of variation on an axis in the given subset input object. + * New min/max values will be clamped if they're not within the fvar axis range. + * If the fvar axis default value is not within the new range, the new default + * value will be changed to the new min or max value, whichever is closer to the fvar + * axis default. + * + * Note: input min value can not be bigger than input max value + * Note: currently this API does not support changing axis limits yet.It'd be only + * used internally for setting axis limits in the internal data structures + * + * Return value: `true` if success, `false` otherwise + * + * XSince: EXPERIMENTAL + **/ +HB_EXTERN hb_bool_t +hb_subset_input_set_axis_range (hb_subset_input_t *input, + hb_face_t *face, + hb_tag_t axis_tag, + float axis_min_value, + float axis_max_value) +{ + if (axis_min_value > axis_max_value) + return false; + + hb_ot_var_axis_info_t axis_info; + if (!hb_ot_var_find_axis_info (face, axis_tag, &axis_info)) + return false; + + float new_min_val = hb_clamp(axis_min_value, axis_info.min_value, axis_info.max_value); + float new_max_val = hb_clamp(axis_max_value, axis_info.min_value, axis_info.max_value); + float new_default_val = hb_clamp(axis_info.default_value, new_min_val, new_max_val); + return input->axes_location.set (axis_tag, Triple (new_min_val, new_default_val, new_max_val)); +} +#endif #endif /** |