WeasyPrint/tests/draw/test_transform.py

"""Test transformations."""

from ..testing_utils import assert_no_logs


@assert_no_logs
def test_2d_transform_1(assert_pixels):
    assert_pixels('''
        ________
        ________
        __BBBr__
        __BBBB__
        __BBBB__
        __BBBB__
        ________
        ________
    ''', '''
      <style>
        @page { size: 8px; margin: 2px; }
        div { transform: rotate(90deg); font-size: 0 }
      </style>
      <div><img src="pattern.png"></div>''')


@assert_no_logs
def test_2d_transform_2(assert_pixels):
    assert_pixels('''
        ____________
        ____________
        _____BBBr___
        _____BBBB___
        _____BBBB___
        _____BBBB___
        ____________
        ____________
        ____________
        ____________
        ____________
        ____________
    ''', '''
      <style>
        @page { size: 12px; margin: 2px; }
        div { transform: translateX(3px) rotate(90deg);
              font-size: 0; width: 4px }
      </style>
      <div><img src="pattern.png"></div>''')


@assert_no_logs
def test_2d_transform_3(assert_pixels):
    # A translateX after the rotation is actually a translateY
    assert_pixels('''
        ____________
        ____________
        ____________
        ____________
        ____________
        __BBBr______
        __BBBB______
        __BBBB______
        __BBBB______
        ____________
        ____________
        ____________
    ''', '''
      <style>
        @page { size: 12px; margin: 2px; }
        div { transform: rotate(90deg) translateX(3px);
              font-size: 0; width: 4px }
      </style>
      <div><img src="pattern.png"></div>''')


@assert_no_logs
def test_2d_transform_4(assert_pixels):
    assert_pixels('''
        ____________
        ____________
        ____________
        ____________
        ____________
        __BBBr______
        __BBBB______
        __BBBB______
        __BBBB______
        ____________
        ____________
        ____________
    ''', '''
      <style>
        @page { size: 12px; margin: 2px; }
        div { transform: rotate(90deg); font-size: 0; width: 4px }
        img { transform: translateX(3px) }
      </style>
      <div><img src="pattern.png"></div>''')


@assert_no_logs
def test_2d_transform_5(assert_pixels):
    assert_pixels('''
        ________
        ________
        __BBBr__
        __BBBB__
        __BBBB__
        __BBBB__
        ________
        ________
    ''', '''
      <style>
        @page { size: 8px; margin: 2px; }
        div { transform: matrix(-1, 0, 0, 1, 0, 0); font-size: 0 }
      </style>
      <div><img src="pattern.png"></div>''')


@assert_no_logs
def test_2d_transform_6(assert_pixels):
    assert_pixels('''
        ________
        ________
        ________
        ________
        ___rBBB_
        ___BBBB_
        ___BBBB_
        ___BBBB_
    ''', '''
      <style>
        @page { size: 8px; margin: 2px; }
        div { transform: translate(1px, 2px); font-size: 0 }
      </style>
      <div><img src="pattern.png"></div>''')


@assert_no_logs
def test_2d_transform_7(assert_pixels):
    assert_pixels('''
        ________
        ________
        ___rBBB_
        ___BBBB_
        ___BBBB_
        ___BBBB_
        ________
        ________
    ''', '''
      <style>
        @page { size: 8px; margin: 2px; }
        div { transform: translate(25%, 0); font-size: 0 }
      </style>
      <div><img src="pattern.png"></div>''')


@assert_no_logs
def test_2d_transform_8(assert_pixels):
    assert_pixels('''
        ________
        ________
        _____rBB
        _____BBB
        _____BBB
        _____BBB
        ________
        ________
    ''', '''
      <style>
        @page { size: 8px; margin: 2px; }
        div { transform: translateX(0.25em); font-size: 12px }
        div div { font-size: 0 }
      </style>
      <div><div><img src="pattern.png"></div></div>''')


@assert_no_logs
def test_2d_transform_9(assert_pixels):
    assert_pixels('''
        ________
        __rBBB__
        __BBBB__
        __BBBB__
        __BBBB__
        ________
        ________
        ________
    ''', '''
      <style>
        @page { size: 8px; margin: 2px; }
        div { transform: translateY(-1px); font-size: 0 }
      </style>
      <div><img src="pattern.png"></div>''')


@assert_no_logs
def test_2d_transform_10(assert_pixels):
    assert_pixels('''
        __________
        _rrBBBBBB_
        _rrBBBBBB_
        _BBBBBBBB_
        _BBBBBBBB_
        _BBBBBBBB_
        _BBBBBBBB_
        _BBBBBBBB_
        _BBBBBBBB_
        __________
    ''', '''
      <style>
        @page { size: 10px; margin: 2px; }
        div { transform: scale(2, 2);
              transform-origin: 1px 1px 1px;
              image-rendering: pixelated;
              font-size: 0 }
      </style>
      <div><img src="pattern.png"></div>''')


@assert_no_logs
def test_2d_transform_11(assert_pixels):
    assert_pixels('''
        __________
        __rBBB____
        __rBBB____
        __BBBB____
        __BBBB____
        __BBBB____
        __BBBB____
        __BBBB____
        __BBBB____
        __________
    ''', '''
      <style>
        @page { size: 10px; margin: 2px; }
        div { transform: scale(1, 2);
              transform-origin: 1px 1px;
              image-rendering: pixelated;
              font-size: 0 }
      </style>
      <div><img src="pattern.png"></div>''')


@assert_no_logs
def test_2d_transform_12(assert_pixels):
    assert_pixels('''
        __________
        __rBBB____
        __rBBB____
        __BBBB____
        __BBBB____
        __BBBB____
        __BBBB____
        __BBBB____
        __BBBB____
        __________
    ''', '''
      <style>
        @page { size: 10px; margin: 2px; }
        div { transform: scaleY(2);
              transform-origin: 1px 1px 0;
              image-rendering: pixelated;
              font-size: 0 }
      </style>
      <div><img src="pattern.png"></div>''')


@assert_no_logs
def test_2d_transform_13(assert_pixels):
    assert_pixels('''
        __________
        __________
        _rrBBBBBB_
        _BBBBBBBB_
        _BBBBBBBB_
        _BBBBBBBB_
        __________
        __________
        __________
        __________
    ''', '''
      <style>
        @page { size: 10px; margin: 2px; }
        div { transform: scaleX(2);
              transform-origin: 1px 1px;
              image-rendering: pixelated;
              font-size: 0 }
      </style>
      <div><img src="pattern.png"></div>''')


@assert_no_logs
def test_2d_transform_opacity(assert_pixels):
    assert_pixels('''
        __________
        __________
        __________
        _ss_______
        _ss_______
        __________
        __________
        __________
        __________
        __________
    ''', '''
      <style>
        @page { size: 10px; margin: 2px; }
        div { transform: translate(-1px, 1px); background: red;
              height: 2px; width: 2px; opacity: 0.5 }
      </style>
      <div></div>''')