223 lines
6.9 KiB
Python
223 lines
6.9 KiB
Python
import pytest
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import plakativ
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import tempfile
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import fitz
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import fitz.utils
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import os
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import math
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def mm_to_pt(length):
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return (72.0 * length) / 25.4
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def _create_pdf(width, height):
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return tmpfile
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@pytest.fixture(scope="module")
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def infile_a4_portrait():
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tmpfile = _create_pdf(mm_to_pt(210), mm_to_pt(297))
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yield tmpfile
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os.unlink(tmpfile)
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@pytest.fixture(scope="module")
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def infile_custom_portrait():
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tmpfile = _create_pdf(mm_to_pt(200), mm_to_pt(400))
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yield tmpfile
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os.unlink(tmpfile)
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@pytest.fixture(scope="module")
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def infile_a4_landscape():
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tmpfile = _create_pdf(mm_to_pt(297), mm_to_pt(210))
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yield tmpfile
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os.unlink(tmpfile)
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@pytest.fixture(scope="module")
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def infile_custom_landscape():
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tmpfile = _create_pdf(mm_to_pt(400), mm_to_pt(200))
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yield tmpfile
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os.unlink(tmpfile)
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@pytest.fixture(scope="module")
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def infile_custom_square():
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tmpfile = _create_pdf(mm_to_pt(300), mm_to_pt(300))
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yield tmpfile
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os.unlink(tmpfile)
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_formats = {
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"dina4_portrait": (210, 297),
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"dina4_landscape": (297, 210),
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"dina3_portrait": (297, 420),
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"dina3_landscape": (420, 297),
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"dina2_portrait": (420, 594),
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}
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@pytest.mark.parametrize(
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"postersize,input_pagesize,output_pagesize,strategy,expected",
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[
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(
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_formats["dina3_portrait"],
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_formats["dina4_portrait"],
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_formats["dina4_portrait"],
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"simple",
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[
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(
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["0", "380.8549", "337.72779", "841.8898"],
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["1.4141413", "0", "0", "1.4141413", "117.68077", "-538.5826"],
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),
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(
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["257.5478", "380.8549", "595.2756", "841.8898"],
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["1.4141413", "0", "0", "1.4141413", "-364.20893", "-538.5826"],
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),
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(
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["0", "0", "337.72779", "461.03489"],
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["1.4141413", "0", "0", "1.4141413", "117.68077", "189.9213"],
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),
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(
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["257.5478", "0", "595.2756", "461.03489"],
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["1.4141413", "0", "0", "1.4141413", "-364.20893", "189.9213"],
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),
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],
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),
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(
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_formats["dina3_landscape"],
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_formats["dina4_landscape"],
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_formats["dina4_portrait"],
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"simple",
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[
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(
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["0", "257.5478", "461.03489", "595.2756"],
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["1.4141413", "0", "0", "1.4141413", "189.9213", "-364.20893"],
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),
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(
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["380.8549", "257.5478", "841.8898", "595.2756"],
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["1.4141413", "0", "0", "1.4141413", "-538.5826", "-364.20893"],
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),
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(
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["0", "0", "461.03489", "337.72779"],
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["1.4141413", "0", "0", "1.4141413", "189.9213", "117.68074"],
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),
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(
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["380.8549", "0", "841.8898", "337.72779"],
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["1.4141413", "0", "0", "1.4141413", "-538.5826", "117.68074"],
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),
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],
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),
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(
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_formats["dina2_portrait"],
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_formats["dina4_landscape"],
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_formats["dina4_portrait"],
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"complex",
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[
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(
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["0", "202.67716", "269.29136", "595.2756"],
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["1.9999999", "0", "0", "1.9999999", "56.692934", "-405.35429"],
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),
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(
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["212.59844", "202.67716", "510.23625", "595.2756"],
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["1.9999999", "0", "0", "1.9999999", "-425.1968", "-405.35429"],
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),
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(
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["449.29136", "325.98423", "841.8898", "595.2756"],
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["1.9999998", "0", "0", "1.9999998", "-898.58267", "-651.9683"],
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),
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(
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["331.65354", "0", "629.2913", "392.59846"],
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["1.9999999", "0", "0", "1.9999999", "-663.307", "56.692934"],
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),
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(
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["572.59848", "0", "841.8898", "392.59846"],
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["1.9999999", "0", "0", "1.9999999", "-1145.1968", "56.692934"],
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),
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(
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["0", "0", "392.59843", "269.29136"],
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["2", "0", "0", "2", "56.692934", "56.69287"],
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),
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],
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),
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],
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)
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def test_cases(postersize, input_pagesize, output_pagesize, strategy, expected):
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width = mm_to_pt(input_pagesize[0])
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height = mm_to_pt(input_pagesize[1])
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doc = fitz.open()
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page = doc.newPage(pno=-1, width=width, height=height)
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img = page.newShape()
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red = fitz.utils.getColor("red")
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green = fitz.utils.getColor("green")
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blue = fitz.utils.getColor("blue")
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orange = fitz.utils.getColor("orange")
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img.insertText(fitz.Point(97, 620), "A", fontsize=600, color=blue)
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img.commit()
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img.drawLine(fitz.Point(0, 0), fitz.Point(width, height))
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img.finish(color=red)
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img.drawLine(fitz.Point(0, height), fitz.Point(width, 0))
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img.finish(color=green)
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img.drawRect(fitz.Rect(fitz.Point(0, 0), fitz.Point(width, height)))
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img.finish(color=orange)
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img.commit()
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fd, infile = tempfile.mkstemp(
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prefix="plakativ", suffix="%f_%f.pdf" % (width, height)
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)
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os.close(fd)
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doc.save(infile, pretty=True, expand=255)
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fd, outfile = tempfile.mkstemp(prefix="plakativ")
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os.close(fd)
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plakativ.compute_layout(
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infile,
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outfile,
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mode="size",
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size=postersize,
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pagesize=output_pagesize,
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border=(20, 20, 20, 20),
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strategy=strategy,
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)
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os.unlink(infile)
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doc = fitz.open(outfile)
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for pnum, (bbox, matrix) in zip(range(doc.pageCount), expected):
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xreflist = doc._getPageInfo(pnum, 3)
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assert len(xreflist) >= 1
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xref, name, _, _ = xreflist[0]
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assert name == "fzFrm0"
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# doc.xrefObject() will return something like:
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# <<
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# /Type /XObject
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# /Subtype /Form
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# /BBox [ 185.47917 262.17189 445.79167 595 ]
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# /Matrix [ 2.286773 0 0 2.286773 -424.1487 -599.5276 ]
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# /Resources <<
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# /XObject <<
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# /fullpage 7 0 R
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# >>
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# >>
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# /Length 12
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# >>
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keyvals = dict(
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tuple(line.strip().split(maxsplit=1))
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for line in doc.xrefObject(xref).splitlines()
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if " " in line.strip()
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)
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assert "/BBox" in keyvals
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newbbox = keyvals["/BBox"].strip(" []").split()
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for v1, v2 in zip(bbox, newbbox):
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assert math.isclose(float(v1), float(v2), abs_tol=0.00001)
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assert "/Matrix" in keyvals
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newmatrix = keyvals["/Matrix"].strip(" []").split()
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for v1, v2 in zip(matrix, newmatrix):
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assert math.isclose(float(v1), float(v2), abs_tol=0.00001)
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doc.close()
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os.unlink(outfile)
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