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Handle case where path count is zero

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This commit is contained in:
Andrew Murray 2021-12-06 22:25:14 +11:00
parent 1e092419b6
commit c48271ab35
2 changed files with 20 additions and 14 deletions
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1
Tests/test_imagepath.py
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@ -90,6 +90,7 @@ def test_path_odd_number_of_coordinates():
[
([0, 1, 2, 3], (0.0, 1.0, 2.0, 3.0)),
([3, 2, 1, 0], (1.0, 0.0, 3.0, 2.0)),
(0, (0.0, 0.0, 0.0, 0.0)),
(1, (0.0, 0.0, 0.0, 0.0)),
],
)

33
src/path.c
View File

@ -327,21 +327,26 @@ path_getbbox(PyPathObject *self, PyObject *args) {
xy = self->xy;
x0 = x1 = xy[0];
y0 = y1 = xy[1];
if (self->count == 0) {
x0 = x1 = 0;
y0 = y1 = 0;
} else {
x0 = x1 = xy[0];
y0 = y1 = xy[1];
for (i = 1; i < self->count; i++) {
if (xy[i + i] < x0) {
x0 = xy[i + i];
}
if (xy[i + i] > x1) {
x1 = xy[i + i];
}
if (xy[i + i + 1] < y0) {
y0 = xy[i + i + 1];
}
if (xy[i + i + 1] > y1) {
y1 = xy[i + i + 1];
for (i = 1; i < self->count; i++) {
if (xy[i + i] < x0) {
x0 = xy[i + i];
}
if (xy[i + i] > x1) {
x1 = xy[i + i];
}
if (xy[i + i + 1] < y0) {
y0 = xy[i + i + 1];
}
if (xy[i + i + 1] > y1) {
y1 = xy[i + i + 1];
}
}
}