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Add msdf_shape_remove_contour and msdf_contour_remove_edge functions

This commit is contained in:
KitsuneAlex 2024-05-14 01:58:08 +02:00
parent 4974fb7203
commit 68dc012b32
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GPG Key ID: 6B0CE864BB69B7D0
2 changed files with 60 additions and 0 deletions
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44
core/msdfgen-c.cpp
View File

@ -176,6 +176,28 @@ MSDF_API int msdf_shape_add_contour(msdf_shape_handle shape, msdf_contour_const_
return MSDF_SUCCESS;
}
MSDF_API int msdf_shape_remove_contour(msdf_shape_handle shape, msdf_contour_const_handle contour) {
if(shape == nullptr || contour == nullptr) {
return MSDF_ERR_INVALID_ARG;
}
auto& contours = reinterpret_cast<msdfgen::Shape*>(shape)->contours;//NOLINT
ptrdiff_t index = 0;
bool found = false;
for(const auto& contour_ref : contours) {
if(&contour_ref != reinterpret_cast<const msdfgen::Contour*>(contour)) {
++index;
continue;
}
found = true;
break;
}
if(!found) {
return MSDF_ERR_INVALID_ARG;
}
contours.erase(contours.cbegin() + index);
return MSDF_SUCCESS;
}
MSDF_API int msdf_shape_get_contour_count(msdf_shape_const_handle shape, size_t* contour_count) {
if(shape == nullptr || contour_count == nullptr) {
return MSDF_ERR_INVALID_ARG;
@ -298,6 +320,28 @@ MSDF_API int msdf_contour_add_edge(msdf_contour_handle contour, msdf_segment_han
return MSDF_SUCCESS;
}
MSDF_API int msdf_contour_remove_edge(msdf_contour_handle contour, msdf_segment_handle segment) {
if(contour == nullptr || segment == nullptr) {
return MSDF_ERR_INVALID_ARG;
}
auto& edges = reinterpret_cast<msdfgen::Contour*>(contour)->edges;
ptrdiff_t index = 0;
bool found = false;
for(const msdfgen::EdgeSegment* edge : edges) {
if(edge != reinterpret_cast<const msdfgen::EdgeSegment*>(segment)) {
++index;
continue;
}
found = true;
break;
}
if(!found) {
return MSDF_ERR_INVALID_ARG;
}
edges.erase(edges.cbegin() + index);
return MSDF_SUCCESS;
}
MSDF_API int msdf_contour_get_edge_count(msdf_contour_const_handle contour, size_t* edge_count) {
if(contour == nullptr || edge_count == nullptr) {
return MSDF_ERR_INVALID_ARG;

16
msdfgen-c.h
View File

@ -197,6 +197,14 @@ MSDF_API int msdf_shape_get_bounds(msdf_shape_const_handle shape, msdf_bounds_t*
*/
MSDF_API int msdf_shape_add_contour(msdf_shape_handle shape, msdf_contour_const_handle contour);
/**
* Removes the given contour from the given shape if present.
* @param shape A pointer to a shape object to remove the given contour from.
* @param contour A pointer to the contour to remove from the shape.
* @returns @code MSDF_SUCCESS@endcode on success, otherwise one of the constants prefixed with @code MSDF_ERR_@endcode.
*/
MSDF_API int msdf_shape_remove_contour(msdf_shape_handle shape, msdf_contour_const_handle contour);
/**
* Retrieves the number of contours allocated within the given shape object.
* @param shape A pointer to a shape object from which to retrieve the contour count.
@ -325,6 +333,14 @@ MSDF_API int msdf_contour_alloc(msdf_contour_handle* contour);
*/
MSDF_API int msdf_contour_add_edge(msdf_contour_handle contour, msdf_segment_handle segment);
/**
* Removes the given edge from the given contour if present.
* @param contour A pointer to the contour to remove the given edge (segment) from.
* @param segment A pointer to the segment to remove from the given contour.
* @returns @code MSDF_SUCCESS@endcode on success, otherwise one of the constants prefixed with @code MSDF_ERR_@endcode.
*/
MSDF_API int msdf_contour_remove_edge(msdf_contour_handle contour, msdf_segment_handle segment);
/**
* Retrieves the edge count of the given contour.
* @param contour A pointer to the contour to retrieve the edge count from.