1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
|
# coding=utf-8
#
# Copyright 2022 Martin Owens <doctormo@geek-2.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>
#
"""
Test pixmap and image handling from various sources.
"""
import os
import sys
import time
import pytest
from inkex.tester import TestCase
from inkex.utils import DependencyError
try:
from inkex.gui.tester import MainLoopProtection
from inkex.gui.pixmap import (
PixmapLoadError,
PixmapFilter,
OverlayFilter,
PadFilter,
SizeFilter,
SIZE_ASPECT,
SIZE_ASPECT_GROW,
SIZE_ASPECT_CROP,
SIZE_STRETCH,
)
from inkex.gui import PixmapManager
except DependencyError:
PixmapFilter = object
PixmapManager = None
class NullFilter(PixmapFilter):
required = ["underpants"]
@pytest.mark.skipif(PixmapManager is None, reason="PyGObject is required")
class GtkPixmapsTest(TestCase):
"""Tests all the pixmaps functionality"""
def construct_manager(self, **kwargs):
"""Create a gtk app based on some inputs"""
return type(
"_PixMan",
(PixmapManager,),
{
"pixmap_dir": self.datadir(),
"missing_image": kwargs.pop("missing_image", None),
"default_image": kwargs.pop("default_image", None),
**kwargs,
},
)
def test_filter(self):
"""Test building filters and errors"""
null_filter = NullFilter(underpants=True)
self.assertRaises(NotImplementedError, null_filter.filter, "not")
self.assertRaises(ValueError, OverlayFilter().filter, None)
def test_manager_filter_overlay(self):
"""Test overlay filter in use"""
pixmaps = self.construct_manager(filters=[OverlayFilter])("svg")
self.assertTrue(pixmaps.get("colors.svg", overlay="application-default-icon"))
def test_manger_filter_size(self):
"""Test resizing a file pixmap"""
pixmaps = self.construct_manager(filters=[SizeFilter])("svg", size=150)
ret = pixmaps.get("colors.svg")
self.assertEqual(ret.get_width(), 150)
self.assertEqual(ret.get_height(), 50)
self.assertRaises(PixmapLoadError, pixmaps.load_from_name, "no-file.svg")
self.assertRaises(
PixmapLoadError,
pixmaps.load_from_name,
os.path.join(self.datadir(), "ui", "window-test.ui"),
)
def test_missing_image(self):
pixmaps = PixmapManager("svg", filters=[SizeFilter(size=25)])
img_a = pixmaps.get("NeverExisted.svg")
img_b = pixmaps.get(PixmapManager.missing_image)
self.assertEqual(img_a.get_width(), 25)
self.assertPixbuf(img_a, img_b)
def test_overlay_filter(self):
"""Test overlay filter"""
pixmaps = self.construct_manager()("svg")
start = pixmaps.get("gradient_with_mixed_offsets.svg")
# 1. Simple overlay
ret = OverlayFilter().filter(start, manager=pixmaps, overlay="colors.svg")
comp = pixmaps.get("img/color_overlay_a.png")
self.assertPixbuf(ret, comp)
# 2. Overlay at bottom
ret = OverlayFilter(position=1).filter(
start, manager=pixmaps, overlay="colors.svg"
)
comp = pixmaps.get("img/color_overlay_b.png")
self.assertPixbuf(ret, comp)
def test_pad_filter(self):
"""Test padding filter"""
pixmaps = self.construct_manager()("svg")
start = pixmaps.get("colors.svg")
# 1. Add no padding
ret = PadFilter(size=(300, 100)).filter(start)
self.assertPixbuf(ret, start)
# 2a. Add padding at top-left
ret = PadFilter(size=300, padding=0.0).filter(start)
comp = pixmaps.get("img/color_pad_a.png")
self.assertPixbuf(ret, comp)
# 12b. Add padding at top-left
ret = PadFilter(size=300, padding=1.0).filter(start)
comp = pixmaps.get("img/color_pad_b.png")
self.assertPixbuf(ret, comp)
# 12c. Add padding at top-left
ret = PadFilter(size=300, padding=0.5).filter(start)
comp = pixmaps.get("img/color_pad_c.png")
self.assertPixbuf(ret, comp)
# 3. Take image and pad to 1px x 150px
ret = PadFilter(size=(1, 150)).filter(start)
self.assertEqual((ret.get_width(), ret.get_height()), (300, 150))
def test_size_filter(self):
"""Test the size pixbuf filter"""
pixmaps = self.construct_manager()("svg")
start = pixmaps.get("colors.svg")
self.assertEqual((start.get_width(), start.get_height()), (300, 100))
ret = SizeFilter().filter(start)
self.assertEqual((ret.get_width(), ret.get_height()), (300, 100))
ret = SizeFilter(size=600, resize_mode=SIZE_ASPECT).filter(start)
self.assertEqual((ret.get_width(), ret.get_height()), (300, 100))
self.assertEqual((start.get_width(), start.get_height()), (300, 100))
ret = SizeFilter(size=60, resize_mode=SIZE_ASPECT).filter(start)
self.assertEqual((ret.get_width(), ret.get_height()), (60, 20))
self.assertEqual((start.get_width(), start.get_height()), (300, 100))
ret = SizeFilter(size=600, resize_mode=SIZE_ASPECT_GROW).filter(start)
self.assertEqual((ret.get_width(), ret.get_height()), (600, 200))
self.assertEqual((start.get_width(), start.get_height()), (300, 100))
ret = SizeFilter(size=60, resize_mode=SIZE_ASPECT_CROP).filter(start)
self.assertEqual((ret.get_width(), ret.get_height()), (180, 60))
self.assertEqual((start.get_width(), start.get_height()), (300, 100))
ret = SizeFilter(size=600, resize_mode=SIZE_STRETCH).filter(start)
self.assertEqual((ret.get_width(), ret.get_height()), (600, 600))
self.assertEqual((start.get_width(), start.get_height()), (300, 100))
def test_load_file(self):
"""Test loading a filename"""
pixmaps = self.construct_manager()("svg")
self.assertTrue(pixmaps.get("colors.svg"))
self.assertFalse(pixmaps.get("colors-no-file.svg"))
def test_load_name(self):
"""Test loading from a Gtk named theme icon"""
pixmaps = self.construct_manager()()
self.assertTrue(pixmaps.get("image-missing"))
def test_load_data_svg(self):
"""Test loading a data svg"""
pixmaps = self.construct_manager()(size=None, load_size=(128, 128))
with open(os.path.join(self.datadir(), "svg", "colors.svg"), "r") as fhl:
self.assertTrue(pixmaps.get(fhl.read()))
self.assertRaises(PixmapLoadError, pixmaps.load_from_data, "<svg bad")
def test_load_data_png(self):
"""Test loading a data png"""
pixmaps = self.construct_manager()()
with open(os.path.join(self.datadir(), "svg", "img", "green.png"), "rb") as fhl:
self.assertPixbuf(pixmaps.get(fhl.read()), pixmaps.get("svg/img/green.png"))
def test_load_default(self):
pixmaps = self.construct_manager()()
self.assertFalse(pixmaps.get(None))
pixmaps = self.construct_manager(default_image="image-missing")()
self.assertTrue(pixmaps.get(None))
pixmaps = self.construct_manager(missing_image="image-missing")()
self.assertTrue(pixmaps.get("bad-image"))
def assertPixbuf(self, img_a, img_b, forgive=0.02):
"""Compare to Gobject pixbufs"""
try:
self._assert_pixbuf(img_a, img_b, forgive)
except Exception:
img_a.savev("image_a.png", "png", [], [])
img_b.savev("image_b.png", "png", [], [])
raise
def _assert_pixbuf(self, img_a, img_b, forgive):
self.assertEqual(img_a.get_colorspace(), img_b.get_colorspace())
self.assertEqual(img_a.get_width(), img_b.get_width(), "Width is different")
self.assertEqual(img_a.get_height(), img_b.get_height(), "Height is different")
# Bitmap comparison
array = zip(img_a.get_pixels(), img_b.get_pixels())
delta, size = 0, 0
for a, b in array:
delta += a - b
size += 1
pcent = int(forgive * 100)
ret = int((delta / 256 / float(size)) * 100)
self.assertLess(
ret, pcent, f"Result image is not as expected; {ret}% > {pcent}%"
)
|
