def output_image(box, tmpdir):
global img_counter
img = box.sheet.get_page_image(box.question.page_number)
filename = box.question.questionnaire.survey.path(img.filename)
mm_to_px = img.matrix.mm_to_px()
x0, y0 = mm_to_px.transform_point(box.data.x, box.data.y)
x1, y1 = mm_to_px.transform_point(box.data.x + box.data.width, box.data.y)
x2, y2 = mm_to_px.transform_point(box.data.x, box.data.y + box.data.height)
x3, y3 = mm_to_px.transform_point(box.data.x + box.data.width, box.data.y + box.data.height)
x = int(min(x0, x1, x2, x3))
y = int(min(y0, y1, y2, y3))
width = int(math.ceil(max(x0, x1, x2, x3) - x))
height = int(math.ceil(max(y0, y1, y2, y3) - y))
img = image.get_a1_from_tiff(filename, img.tiff_page, img.rotated if img.rotated else False)
output = cairo.ImageSurface(cairo.FORMAT_RGB24, width, height)
cr = cairo.Context(output)
cr.set_source_rgb(1, 1, 1)
cr.paint()
cr.set_source_surface(img, -x, -y)
cr.paint()
img_counter += 1
output.write_to_png(os.path.join(tmpdir, 'image-%i.png' % img_counter))
return 'image-%i.png' % img_counter
def get_box_surface(img, filename, x, y, width, height, format=cairo.FORMAT_RGB24):
mm_to_px = img.matrix.mm_to_px()
x0, y0 = mm_to_px.transform_point(x, y)
x1, y1 = mm_to_px.transform_point(x + width, y)
x2, y2 = mm_to_px.transform_point(x, y + height)
x3, y3 = mm_to_px.transform_point(x + width, y + height)
x = int(min(x0, x1, x2, x3))
y = int(min(y0, y1, y2, y3))
width = int(math.ceil(max(x0, x1, x2, x3) - x))
height = int(math.ceil(max(y0, y1, y2, y3) - y))
img = image.get_a1_from_tiff(filename, img.tiff_page, img.rotated if img.rotated else False)
# Not sure if this is correct for A1 ... probably not
assert(format == cairo.FORMAT_RGB24)
surf = cairo.ImageSurface(format, width, height)
cr = cairo.Context(surf)
cr.set_source_rgb(1, 1, 1)
cr.paint()
cr.set_source_surface(img, -x, -y)
cr.paint()
return surf
def get_box_surface(img,
filename,
x,
y,
width,
height,
format=cairo.FORMAT_RGB24):
mm_to_px = img.matrix.mm_to_px()
x0, y0 = mm_to_px.transform_point(x, y)
x1, y1 = mm_to_px.transform_point(x + width, y)
x2, y2 = mm_to_px.transform_point(x, y + height)
x3, y3 = mm_to_px.transform_point(x + width, y + height)
x = int(min(x0, x1, x2, x3))
y = int(min(y0, y1, y2, y3))
width = int(math.ceil(max(x0, x1, x2, x3) - x))
height = int(math.ceil(max(y0, y1, y2, y3) - y))
img = image.get_a1_from_tiff(filename, img.tiff_page,
img.rotated if img.rotated else False)
# Not sure if this is correct for A1 ... probably not
assert (format == cairo.FORMAT_RGB24)
surf = cairo.ImageSurface(format, width, height)
cr = cairo.Context(surf)
cr.set_source_rgb(1, 1, 1)
cr.paint()
cr.set_source_surface(img, -x, -y)
cr.paint()
return surf
def output_image(box, tmpdir):
global img_counter
img = box.sheet.get_page_image(box.question.page_number)
filename = box.question.questionnaire.survey.path(img.filename)
mm_to_px = img.matrix.mm_to_px()
x0, y0 = mm_to_px.transform_point(box.data.x, box.data.y)
x1, y1 = mm_to_px.transform_point(box.data.x + box.data.width, box.data.y)
x2, y2 = mm_to_px.transform_point(box.data.x, box.data.y + box.data.height)
x3, y3 = mm_to_px.transform_point(box.data.x + box.data.width,
box.data.y + box.data.height)
x = int(min(x0, x1, x2, x3))
y = int(min(y0, y1, y2, y3))
width = int(math.ceil(max(x0, x1, x2, x3) - x))
height = int(math.ceil(max(y0, y1, y2, y3) - y))
img = image.get_a1_from_tiff(filename, img.tiff_page,
img.rotated if img.rotated else False)
output = cairo.ImageSurface(cairo.FORMAT_RGB24, width, height)
cr = cairo.Context(output)
cr.set_source_rgb(1, 1, 1)
cr.paint()
cr.set_source_surface(img, -x, -y)
cr.paint()
img_counter += 1
output.write_to_png(os.path.join(tmpdir, 'image-%i.png' % img_counter))
return 'image-%i.png' % img_counter
def draw(self):
if 0:
assert isinstance(self.canv, pdfgen.canvas.Canvas)
if (self.filename, self.tiff_page, self.bbox) in self.cache:
img = self.cache[(self.filename, self.tiff_page, self.bbox)]
else:
img = StringIO.StringIO(
image.get_pbm(
image.get_a1_from_tiff(
self.filename, self.tiff_page,
self.rotated if self.rotated else False)))
img = Image.open(img).crop(self.bbox)
self.cache[(self.filename, self.bbox)] = img
self.canv.drawInlineImage(img, 0, 0, self.width, self.height)
self.canv.setStrokeColorRGB(0.6, 0.6, 0.6)
self.canv.line(0, 0, self.available_width, 0)
self.canv.line(0, self.height, self.available_width, self.height)
def draw(self):
if 0:
assert isinstance(self.canv, pdfgen.canvas.Canvas)
if (self.filename, self.tiff_page, self.bbox) in self.cache:
img = self.cache[(self.filename, self.tiff_page, self.bbox)]
else:
img = StringIO.StringIO(
image.get_pbm(
image.get_a1_from_tiff(self.filename, self.tiff_page, self.rotated if self.rotated else False)
)
)
img = Image.open(img).crop(self.bbox)
self.cache[(self.filename, self.bbox)] = img
self.canv.drawInlineImage(img, 0, 0, self.width, self.height)
self.canv.setStrokeColorRGB(0.6, 0.6, 0.6)
self.canv.line(0, 0, self.available_width, 0)
self.canv.line(0, self.height, self.available_width, self.height)
