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#Copyright ReportLab Europe Ltd. 2000-2017
#see license.txt for license details
"""
Tests for RLG Image shapes.
"""
from reportlab.lib.testutils import setOutDir,makeSuiteForClasses, outputfile, printLocation, rlSkipUnless
setOutDir(__name__)
import os
import unittest
from reportlab.graphics.shapes import Image, Drawing, Rect, Group, Line
from reportlab.graphics import renderPDF
from reportlab.lib.pagesizes import A4
from reportlab.lib.colors import toColor, CMYKColor, rgb2cmyk
IMAGENAME = 'pythonpowered.gif'
GSIMAGE = 'pythonpowered-gs.gif'
GAIMAGE = 'gray-alpha.png'
try:
import rlPyCairo
except ImportError:
rlPyCairo = None
class ImageTestCase(unittest.TestCase):
"Test RLG Image shape."
@classmethod
def setUpClass(cls):
cls.IMAGES = []
@classmethod
def tearDownClass(cls):
if not cls.IMAGES: return
d = Drawing(A4[0], A4[1])
for img in cls.IMAGES:
d.add(img)
outPath = outputfile("test_graphics_images.pdf")
renderPDF.drawToFile(d, outPath) #, '')
assert os.path.exists(outPath)
try:
import _rl_renderPM
except ImportError:
_rl_renderPM = None
from reportlab.rl_config import renderPMBackend
if rlPyCairo:
d.save(formats=['png', 'gif', 'ps','svg'],outDir=os.path.dirname(outPath), fnRoot='test_graphics_images', _renderPM_backend='rlPyCairo')
if _rl_renderPM:
d.save(formats=['png', 'gif'],outDir=os.path.dirname(outPath), fnRoot='test_graphics_images-libart', _renderPM_backend='_renderPM')
def test0(self):
"Test convert a bitmap file as Image shape into a tmp. PDF file."
d = Drawing(110, 44)
inPath = IMAGENAME
img = Image(0, 0, 110, 44, inPath)
d.add(img)
self.IMAGES.append(img)
def test1(self):
"Test Image shape, adding it to a PDF page."
inPath = IMAGENAME
img = Image(0, 0, 110, 44, inPath)
self.IMAGES.append(img)
def test2(self):
"Test scaled Image shape adding it to a PDF page."
inPath = IMAGENAME
img = Image(0, 0, 110, 44, inPath)
d = Drawing(110, 44)
d.add(img)
d.translate(120, 0)
d.scale(2, 2)
self.IMAGES.append(d)
def test3(self):
"Test rotated Image shape adding it to a PDF page."
inPath = IMAGENAME
img = Image(0, 0, 110, 44, inPath)
d = Drawing(110, 44)
d.add(img)
d.translate(420, 0)
d.scale(2, 2)
d.rotate(45)
self.IMAGES.append(d)
def test4(self):
"Test convert a greyscale bitmap file as Image shape into a tmp. PDF file."
d = Drawing(110, 44)
img = Image(0, 0, 110, 44, GSIMAGE)
d.add(img)
d.translate(0,2*72)
self.IMAGES.append(d)
def test5(self):
"Test convert a greyscale +alpha bitmap file as Image shape into a tmp. PDF file."
d = Drawing(48, 48)
img = Image(0, 0, 48, 48, GAIMAGE)
d.add(img)
d.translate(72,4*72)
self.IMAGES.append(d)
def test6(self):
d = Drawing(200, 100)
d.add(Rect(1,1,d.width-2,d.height-2,strokeWidth=2,strokeColor=toColor('red'),fillColor=toColor('lightblue')),name='bg0')
def addImage(x,y,w,h):
img = Image(x, y, w, h, IMAGENAME)
d.add(Rect(img.x-1,img.y-1,img.width+2,img.height+2,strokeWidth=2,strokeColor=toColor('green'),fillColor=toColor('black')),name='bg1')
d.add(img)
addImage(40,60,55,22)
addImage(10,10,110,44)
d.translate(72,6*72)
self.IMAGES.append(d)
@rlSkipUnless(rlPyCairo,'cannot import rlPyCairo')
def test7(self):
rw = 10
rg = 10
xgap = 5
h = w = 3*rw+4*rg
d = Drawing(2*h + xgap,h)
C = toColor('red'),toColor('green'),toColor('blue')
g = Group()
def colconv(j,c):
if j==0: return c
if j==1: return CMYKColor(*rgb2cmyk(c.red,c.green,c.blue),alpha=c.alpha)
from reportlab.graphics.widgets.grids import ShadedRect
for i in range(3):
c = C[i]
sc = c.clone(alpha=0.1)
ec = c.clone(alpha=1.0)
for j in range(2):
x = j*(w+xgap)
d.add(ShadedRect(x=x,y=rg+(rg+rw)*i,width=w,height=rw,orientation='vertical',numShades=w//10,
fillColorStart=colconv(j,sc),fillColorEnd=colconv(j,ec),
strokeColor=None,strokeWidth=0))
g.add(ShadedRect(x=x+rg+(rg+rw)*i,y=0,width=rw,height=h,orientation='horizontal',numShades=w//10,
fillColorStart=colconv(j,sc),fillColorEnd=colconv(j,ec),
strokeColor=None,strokeWidth=0))
d.add(g)
d._renderPM_backendFmt = 'ARGB32'
d._renderPM_bg = toColor('white').clone(alpha=0) #transparent white
d.save(formats=['png'],
fnRoot=outputfile(os.path.join("charts-out","test_graphics_images_alpha_test.png")), outDir=None)
@rlSkipUnless(rlPyCairo,'cannot import rlPyCairo')
def test8(self):
rw = 10
rg = 10
sw = 2
xgap = 5
h = w = 3*rw+4*rg
d = Drawing(2*h + xgap,h)
C = toColor('red'),toColor('green')
g = Group()
def colconv(j,c):
if j==0: return c
if j==1: return CMYKColor(*rgb2cmyk(c.red,c.green,c.blue),alpha=c.alpha)
for i in range(3):
ch = C[0].clone(alpha=0.1 + 0.45*i)
cv = C[1].clone(alpha=0.1 + 0.45*i)
for j in range(2):
x = j*(w+xgap)
y = rg+(rg+rw)*i + rw/2
d.add(Line(x,y,x+w,y, strokeColor=ch, strokeWidth=sw))
x += rg+(rg+rw)*i+ rw/2
g.add(Line(x,0,x, h, strokeColor=cv, strokeWidth=sw))
d.add(g)
d._renderPM_backendFmt = 'ARGB32'
d._renderPM_bg = toColor('white').clone(alpha=0) #transparent white
d.save(formats=['png'],
fnRoot=outputfile(os.path.join("charts-out","test_graphics_images_alpha_test8.png")), outDir=None)
def makeSuite():
return makeSuiteForClasses(ImageTestCase)
#noruntests
if __name__ == "__main__":
unittest.TextTestRunner().run(makeSuite())
printLocation()
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