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Support float font sizes

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This commit is contained in:
Andrew Murray 2023-04-22 13:45:18 +10:00
parent a405e8406b
commit 81a756e93b
2 changed files with 21 additions and 3 deletions
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10
Tests/test_imagefont.py
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@ -191,6 +191,16 @@ def test_getlength(
assert length == length_raqm assert length == length_raqm
def test_float_size():
lengths = []
for size in (48, 48.5, 49):
f = ImageFont.truetype(
"Tests/fonts/NotoSans-Regular.ttf", size, layout_engine=layout_engine
)
lengths.append(f.getlength("text"))
assert lengths[0] != lengths[1] != lengths[2]
def test_render_multiline(font): def test_render_multiline(font):
im = Image.new(mode="RGB", size=(300, 100)) im = Image.new(mode="RGB", size=(300, 100))
draw = ImageDraw.Draw(im) draw = ImageDraw.Draw(im)

14
src/_imagingft.c
View File

@ -116,7 +116,9 @@ getfont(PyObject *self_, PyObject *args, PyObject *kw) {
int error = 0; int error = 0;
char *filename = NULL; char *filename = NULL;
Py_ssize_t size; float size;
FT_Size_RequestRec req;
FT_Long width;
Py_ssize_t index = 0; Py_ssize_t index = 0;
Py_ssize_t layout_engine = 0; Py_ssize_t layout_engine = 0;
unsigned char *encoding; unsigned char *encoding;
@ -133,7 +135,7 @@ getfont(PyObject *self_, PyObject *args, PyObject *kw) {
if (!PyArg_ParseTupleAndKeywords( if (!PyArg_ParseTupleAndKeywords(
args, args,
kw, kw,
"etn|nsy#n", "etf|nsy#n",
kwlist, kwlist,
Py_FileSystemDefaultEncoding, Py_FileSystemDefaultEncoding,
&filename, &filename,
@ -179,7 +181,13 @@ getfont(PyObject *self_, PyObject *args, PyObject *kw) {
} }
if (!error) { if (!error) {
error = FT_Set_Pixel_Sizes(self->face, 0, size); width = size * 64;
req.type = FT_SIZE_REQUEST_TYPE_NOMINAL;
req.width = width;
req.height = width;
req.horiResolution = 0;
req.vertResolution = 0;
error = FT_Request_Size(self->face, &req);
} }
if (!error && encoding && strlen((char *)encoding) == 4) { if (!error && encoding && strlen((char *)encoding) == 4) {