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"""Test that _render_styled_text_line() correctly handles sequences of
Fragments with varying font/size/style and other characteristics.
"""
# pylint: disable=protected-access
from pathlib import Path
import pytest
from fpdf import FPDF
from fpdf.enums import Align, XPos, YPos
from fpdf.line_break import Fragment, MultiLineBreak
from test.conftest import assert_pdf_equal
HERE = Path(__file__).resolve().parent
TEXT_1 = "Lorem ipsum Ut nostrud irure"
TEXT_2 = " reprehenderit anim nostrud dolore sed ut Excepteur dolore ut"
TEXT_3 = " sunt irure consectetur tempor eu tempor nostrud dolore sint"
TEXT_4 = " exercitation aliquip velit ullamco esse dolore mollit"
TEXT_5 = " ea sed voluptate commodo amet eiusmod incididunt"
class FxFPDF(FPDF):
def write_fragments(self, frags, align=Align.L):
"""Replicate the part of write() that actually renders the fragments."""
def _get_width(height): # pylint: disable=unused-argument
return max_width
text_lines = []
multi_line_break = MultiLineBreak(frags, _get_width, [1, 1], align=align)
# first line from current x position to right margin
max_width = self.w - self.x - self.r_margin
text_line = multi_line_break.get_line()
# remaining lines fill between margins
max_width = self.w - self.l_margin - self.r_margin
while (text_line) is not None:
text_lines.append(text_line)
text_line = multi_line_break.get_line()
if text_line:
text_lines.append(text_line)
if not text_lines:
return
self.ws = 0 # currently only left aligned, so no word spacing
for text_line_index, text_line in enumerate(text_lines):
if text_line_index > 0:
self.ln()
self._render_styled_text_line(
text_line,
h=None,
border=0,
new_x=XPos.WCONT,
new_y=YPos.TOP,
fill=False,
link=None,
)
@pytest.mark.skip(reason="Font related tests are failing with the fonts available in Debian")
def test_varfrags_fonts(tmp_path):
pdf = FxFPDF()
pdf.add_page()
pdf.line(pdf.l_margin, pdf.t_margin, pdf.l_margin, pdf.h - pdf.b_margin)
pdf.line(
pdf.l_margin + pdf.epw,
pdf.t_margin,
pdf.l_margin + pdf.epw,
pdf.h - pdf.b_margin,
)
pdf.add_font("Roboto", "B", HERE / "../fonts/Roboto-Bold.ttf")
pdf.set_font("helvetica", size=14)
f1 = Fragment(TEXT_1, pdf._get_current_graphics_state(), pdf.k)
pdf.set_font("courier", style="I", size=16)
f2 = Fragment(TEXT_2, pdf._get_current_graphics_state(), pdf.k)
f3 = Fragment(TEXT_3, f1.graphics_state, pdf.k)
pdf.set_font("roboto", style="B", size=20)
f4 = Fragment(TEXT_4, pdf._get_current_graphics_state(), pdf.k)
f5 = Fragment(TEXT_5, f1.graphics_state, pdf.k)
frags = [f1, f2, f3, f4, f5]
pdf.write_fragments(frags)
pdf.ln()
pdf.ln()
pdf.write_fragments(frags, align=Align.J)
pdf.ln()
pdf.ln()
pdf.write_fragments(frags, align=Align.R)
pdf.ln()
pdf.ln()
pdf.write_fragments(frags, align=Align.C)
assert_pdf_equal(pdf, HERE / "varfrags_fonts.pdf", tmp_path)
def test_varfrags_size_bold(tmp_path):
pdf = FxFPDF()
pdf.add_page()
pdf.line(pdf.l_margin, pdf.t_margin, pdf.l_margin, pdf.h - pdf.b_margin)
pdf.line(
pdf.l_margin + pdf.epw,
pdf.t_margin,
pdf.l_margin + pdf.epw,
pdf.h - pdf.b_margin,
)
pdf.set_font("helvetica", size=14)
f1 = Fragment(TEXT_1, pdf._get_current_graphics_state(), pdf.k)
pdf.set_font("helvetica", style="B", size=30)
f2 = Fragment(TEXT_2, pdf._get_current_graphics_state(), pdf.k)
f3 = Fragment(TEXT_3, f1.graphics_state, pdf.k)
f4 = Fragment(TEXT_4, f2.graphics_state, pdf.k)
f5 = Fragment(TEXT_5, f1.graphics_state, pdf.k)
frags = [f1, f2, f3, f4, f5]
pdf.write_fragments(frags)
pdf.ln()
pdf.ln()
pdf.write_fragments(frags, align=Align.J)
pdf.ln()
pdf.ln()
pdf.write_fragments(frags, align=Align.R)
pdf.ln()
pdf.ln()
pdf.write_fragments(frags, align=Align.C)
assert_pdf_equal(pdf, HERE / "varfrags_size_bold.pdf", tmp_path)
def test_varfrags_stretch_spacing(tmp_path):
pdf = FxFPDF()
pdf.add_page()
pdf.line(pdf.l_margin, pdf.t_margin, pdf.l_margin, pdf.h - pdf.b_margin)
pdf.line(
pdf.l_margin + pdf.epw,
pdf.t_margin,
pdf.l_margin + pdf.epw,
pdf.h - pdf.b_margin,
)
pdf.set_font("helvetica", size=14)
f1 = Fragment(TEXT_1, pdf._get_current_graphics_state(), pdf.k)
pdf.set_stretching(140)
f2 = Fragment(TEXT_2, pdf._get_current_graphics_state(), pdf.k)
f3 = Fragment(TEXT_3, f1.graphics_state, pdf.k)
pdf.set_char_spacing(-3)
f4 = Fragment(TEXT_4, pdf._get_current_graphics_state(), pdf.k)
f5 = Fragment(TEXT_5, f1.graphics_state, pdf.k)
frags = [f1, f2, f3, f4, f5]
pdf.write_fragments(frags)
pdf.ln()
pdf.ln()
pdf.write_fragments(frags, align=Align.J)
pdf.ln()
pdf.ln()
pdf.write_fragments(frags, align=Align.R)
pdf.ln()
pdf.ln()
pdf.write_fragments(frags, align=Align.C)
assert_pdf_equal(pdf, HERE / "varfrags_stretch_spacing.pdf", tmp_path)
def test_varfrags_text_mode(tmp_path):
pdf = FxFPDF()
pdf.add_page()
pdf.line(pdf.l_margin, pdf.t_margin, pdf.l_margin, pdf.h - pdf.b_margin)
pdf.line(
pdf.l_margin + pdf.epw,
pdf.t_margin,
pdf.l_margin + pdf.epw,
pdf.h - pdf.b_margin,
)
pdf.set_draw_color(255, 100, 0)
pdf.line_width = 1
pdf.set_font("helvetica", style="B", size=20)
f1 = Fragment(TEXT_1, pdf._get_current_graphics_state(), pdf.k)
pdf.text_mode = "STROKE"
f2 = Fragment(TEXT_2, pdf._get_current_graphics_state(), pdf.k)
f3 = Fragment(TEXT_3, f1.graphics_state, pdf.k)
# For now, the most recently set color before write_fragments() wins.
pdf.set_draw_color(0, 0, 255)
pdf.text_mode = "FILL_STROKE"
f4 = Fragment(TEXT_4, pdf._get_current_graphics_state(), pdf.k)
f5 = Fragment(TEXT_5, f1.graphics_state, pdf.k)
frags = [f1, f2, f3, f4, f5]
pdf.write_fragments(frags)
pdf.ln()
pdf.ln()
pdf.write_fragments(frags, align=Align.J)
pdf.ln()
pdf.ln()
pdf.write_fragments(frags, align=Align.R)
pdf.ln()
pdf.ln()
pdf.write_fragments(frags, align=Align.C)
assert_pdf_equal(pdf, HERE / "varfrags_text_mode.pdf", tmp_path)
def test_varfrags_char_vpos(tmp_path):
pdf = FxFPDF()
pdf.add_page()
pdf.line(pdf.l_margin, pdf.t_margin, pdf.l_margin, pdf.h - pdf.b_margin)
pdf.line(
pdf.l_margin + pdf.epw,
pdf.t_margin,
pdf.l_margin + pdf.epw,
pdf.h - pdf.b_margin,
)
pdf.set_font("helvetica", size=14)
f1 = Fragment(TEXT_1, pdf._get_current_graphics_state(), pdf.k)
pdf.char_vpos = "SUB"
f2 = Fragment(TEXT_2, pdf._get_current_graphics_state(), pdf.k)
f3 = Fragment(TEXT_3, f1.graphics_state, pdf.k)
pdf.char_vpos = "SUP"
f4 = Fragment(TEXT_4, pdf._get_current_graphics_state(), pdf.k)
f5 = Fragment(TEXT_5, f1.graphics_state, pdf.k)
frags = [f1, f2, f3, f4, f5]
pdf.write_fragments(frags)
pdf.ln()
pdf.ln()
pdf.write_fragments(frags, align=Align.J)
pdf.ln()
pdf.ln()
pdf.write_fragments(frags, align=Align.R)
pdf.ln()
pdf.ln()
pdf.write_fragments(frags, align=Align.C)
assert_pdf_equal(pdf, HERE / "varfrags_char_vpos.pdf", tmp_path)
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