def make_popup(page, rect, popupname, popup, code):
from pdfrw import PdfDict, PdfArray, PdfName
from pdfrw.uncompress import uncompress
codeword_on, codeword_off = code
show_action = PdfDict(S=PdfName.SetOCGState,
State=PdfArray([PdfName.OFF] + codeword_off +
[PdfName.ON] + codeword_on))
link = PdfDict(indirect=True,
Type=PdfName.Annot,
H=PdfName.I,
Subtype=PdfName.Link,
A=show_action,
Rect=rect)
if pdf_popup_config['popuplinkcolor']:
link.C = PdfArray(pdf_popup_config['popuplinkcolor'])
else:
link.Border = [0, 0, 0]
page.Annots.append(link)
ocmd = PdfDict(Type=PdfName.OCMD, OCGs=codeword_on, P=PdfName.AllOn)
popup_pdfname = '/SPopup' + popupname
ocmd_pdfname = '/SPopupOCMD{}'.format(popup_unique_id())
if not page.Resources.Properties: page.Resources.Properties = PdfDict()
if not page.Resources.XObject: page.Resources.XObject = PdfDict()
page.Resources.XObject[popup_pdfname] = popup
page.Resources.Properties[ocmd_pdfname] = ocmd
if page.Contents.Filter:
uncompress(
[page.Contents]
) # Important. Otherwise appending to stream add plain text to compressed stream
page.Contents.stream += "q /OC {ocmd} BDC 1 0 0 1 {x} {y} cm {popup} Do EMC Q\n".\
format(x=rect[0],y=float(rect[1])-popup.BBox[3],
ocmd=ocmd_pdfname,
popup=popup_pdfname)
def create_highlight(points,
color=(1, 0.92, 0.23),
author=None,
contents=None):
"""Given Quad points, create a highligh object in standard pdf format."""
new_highlight = PdfDict()
new_highlight.F = 4
new_highlight.Type = PdfName('Annot')
new_highlight.Subtype = PdfName('Highlight')
if author:
new_highlight.T = author
new_highlight.C = color
if contents:
new_highlight.Contents = contents
new_highlight.indirect = True
#############################################################
### Search for bounding coordinates
#############################################################
bot_left_x = float('inf')
bot_left_y = float('inf')
top_right_x = 0.0
top_right_y = 0.0
quad_pts = []
for (x1, y1, x2, y2) in points:
# this quadpoints specified PDF definition of rect box
quad_pts.extend([x1, y2, x2, y2, x1, y1, x2, y1])
bot_left_x = min(bot_left_x, x1, x2)
bot_left_y = min(bot_left_y, y1, y2)
top_right_x = max(top_right_x, x1, x2)
top_right_y = max(top_right_y, y1, y2)
new_highlight.QuadPoints = PdfArray(quad_pts)
new_highlight.Rect = PdfArray(
[bot_left_x, bot_left_y, top_right_x, top_right_y])
return new_highlight
