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import os
import unittest
import PIL
import PIL.Image
import openpaperwork_core
from paperwork_backend.pageedit import AbstractPageEditorUI
class FakeUI(AbstractPageEditorUI):
CAPABILITIES = AbstractPageEditorUI.CAPABILITY_SHOW_FRAME
def __init__(self, tests):
self.tests = tests
def show_preview(self, img):
self.tests.ui_calls.append(('show_preview', img))
def show_frame_selector(self):
self.tests.ui_calls.append(('show_frame_selector',))
def hide_frame_selector(self):
self.tests.ui_calls.append(('hide_frame_selector',))
class TestPageEdit(unittest.TestCase):
def setUp(self):
self.test_img = PIL.Image.open(
os.path.join(
os.path.dirname(os.path.abspath(__file__)),
"test_img.png"
)
)
self.pillowed = []
self.ui_calls = []
self.core = openpaperwork_core.Core(auto_load_dependencies=True)
self.core.load("paperwork_backend.model.fake")
self.core.load("paperwork_backend.imgedit.color")
self.core.load("paperwork_backend.imgedit.crop")
self.core.load("paperwork_backend.imgedit.rotate")
self.core.load("paperwork_backend.pageedit.pageeditor")
class FakeModule(object):
class Plugin(openpaperwork_core.PluginBase):
PRIORITY = 999999999999999999
def pillow_to_url(s, img, dst_uri):
self.pillowed.append(dst_uri)
return dst_uri
self.core._load_module("fake_module", FakeModule())
self.core.init()
self.model = self.core.get_by_name("paperwork_backend.model.fake")
def test_all(self):
self.model.docs = [
{
"id": 'some_doc_with_text',
"url": 'file:///some_work_dir/some_doc_id',
"mtime": 12345,
"labels": [],
"page_imgs": [
("file:///paper.0.jpeg", self.test_img),
("file:///paper.1.jpeg", self.test_img),
("file:///paper.2.jpeg", self.test_img),
],
"page_boxes": [[], [], []],
},
]
fake_ui = FakeUI(self)
page_editor = self.core.call_success(
"page_editor_get",
"file:///some_work_dir/some_doc_id", 1, fake_ui
)
self.assertEqual(self.pillowed, [])
self.assertEqual(len(self.ui_calls), 2)
self.assertEqual(self.ui_calls[0][0], 'show_preview')
self.assertEqual(self.ui_calls[0][1].size, (200, 100))
self.assertEqual(self.ui_calls[1][0], 'hide_frame_selector')
modifiers = page_editor.get_modifiers()
modifiers = [e['id'] for e in modifiers]
modifiers.sort()
self.assertEqual(modifiers, [
"color_equalization",
"crop",
"rotate_clockwise",
"rotate_counterclockwise",
])
# rotate 90°
self.pillowed = []
self.ui_calls = []
page_editor.on_modifier_selected("rotate_clockwise").schedule()
self.core.call_all("mainloop_quit_graceful")
self.core.call_all("mainloop")
self.assertEqual(len(self.ui_calls), 2)
self.assertEqual(self.ui_calls[0][0], 'show_preview')
self.assertEqual(self.ui_calls[0][1].size, (100, 200))
self.assertEqual(self.ui_calls[1][0], 'hide_frame_selector')
# ACE
bilinear = getattr(PIL.Image, 'Resampling', PIL.Image).BILINEAR
avg_color = self.ui_calls[0][1].resize(
(1, 1), resample=bilinear
).tobytes()
self.pillowed = []
self.ui_calls = []
page_editor.on_modifier_selected("color_equalization").schedule()
self.core.call_all("mainloop_quit_graceful")
self.core.call_all("mainloop")
self.assertEqual(self.pillowed, [])
self.assertEqual(len(self.ui_calls), 2)
self.assertEqual(self.ui_calls[0][0], 'show_preview')
self.assertEqual(self.ui_calls[0][1].size, (100, 200))
avg_color2 = self.ui_calls[0][1].resize(
(1, 1), resample=bilinear
).tobytes()
self.assertNotEqual(avg_color, avg_color2)
self.assertEqual(self.ui_calls[1][0], 'hide_frame_selector')
# crop
self.pillowed = []
self.ui_calls = []
page_editor.on_modifier_selected("crop").schedule()
self.core.call_all("mainloop_quit_graceful")
self.core.call_all("mainloop")
self.assertEqual(self.pillowed, [])
self.assertEqual(len(self.ui_calls), 2)
self.assertEqual(self.ui_calls[0][0], 'show_preview')
self.assertEqual(self.ui_calls[0][1].size, (100, 200))
self.assertEqual(self.ui_calls[1][0], 'show_frame_selector')
page_editor.frame.set((0, 190, 10, 200))
self.assertEqual(page_editor.frame.get(), (0, 190, 10, 200))
# rotation again (180°)
self.pillowed = []
self.ui_calls = []
page_editor.on_modifier_selected("rotate_clockwise").schedule()
self.core.call_all("mainloop_quit_graceful")
self.core.call_all("mainloop")
self.assertEqual(len(self.ui_calls), 2)
self.assertEqual(self.ui_calls[0][0], 'show_preview')
self.assertEqual(self.ui_calls[0][1].size, (200, 100))
self.assertEqual(self.ui_calls[1][0], 'show_frame_selector')
self.assertEqual(page_editor.frame.get(), (190, 90, 200, 100))
# .. and again (270°)
self.pillowed = []
self.ui_calls = []
page_editor.on_modifier_selected("rotate_clockwise").schedule()
self.core.call_all("mainloop_quit_graceful")
self.core.call_all("mainloop")
self.assertEqual(len(self.ui_calls), 2)
self.assertEqual(self.ui_calls[0][0], 'show_preview')
self.assertEqual(self.ui_calls[0][1].size, (100, 200))
self.assertEqual(self.ui_calls[1][0], 'show_frame_selector')
self.assertEqual(page_editor.frame.get(), (90, 0, 100, 10))
# and save !
self.pillowed = []
self.ui_calls = []
page_editor.on_save().schedule()
self.core.call_all("mainloop_quit_graceful")
self.core.call_all("mainloop")
self.assertEqual(len(self.ui_calls), 0)
self.assertEqual(self.pillowed, ["file:///paper.1.jpeg"])
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