Imrpovement #5
Description
Hello,
I would like to offer you some improvements
`
class ShowPdf(threading.Thread, Frame):
img_object_li = []
def __init__(self, parent, width=1200, height=600, pdf_location="", bar=True, load="after"):
threading.Thread.__init__(self)
Frame.__init__(self, parent, width=width, height=height, bg="white")
self.__flagKill = False
self.__flagRefresh = True
self.pdf_location = pdf_location
self.bar = bar
self.load = load
scroll_y = Scrollbar(self, orient="vertical")
scroll_x = Scrollbar(self, orient="horizontal")
scroll_x.pack(fill="x", side="bottom")
scroll_y.pack(fill="y", side="right")
self.percentage_load = StringVar()
if self.bar == True and self.load == "after":
self.display_msg = Label(self, textvariable=self.percentage_load)
self.display_msg.pack(pady=10)
self.loading = Progressbar(self, orient=HORIZONTAL, length=100, mode='determinate')
self.loading.pack(side=TOP, fill=X)
self.text = Text(self, yscrollcommand=scroll_y.set, xscrollcommand=scroll_x.set, width=width, height=height)
self.text.pack(side="left")
scroll_x.config(command=self.text.xview)
scroll_y.config(command=self.text.yview)
def run(self):
while self.__flagKill is False:
if self.__flagRefresh is True:
precentage_dicide = 0
with fitz.open(self.pdf_location) as open_pdf:
for page in open_pdf:
pix = page.getPixmap()
pix1 = fitz.Pixmap(pix, 0) if pix.alpha else pix
img = pix1.getImageData("ppm")
timg = PhotoImage(data=img)
self.img_object_li.append(timg)
if self.bar == True and self.load == "after":
precentage_dicide = precentage_dicide + 1
percentage_view = (float(precentage_dicide)/float(len(open_pdf))*float(100))
self.loading['value'] = percentage_view
self.percentage_load.set(f"Please wait!, your pdf is loading {int(math.floor(percentage_view))}%")
if self.bar == True and self.load == "after":
self.loading.pack_forget()
self.display_msg.pack_forget()
index = 1.0
self.text.configure(state='normal')
for i in self.img_object_li:
self.text.image_create(index, image=i)
self.text.insert(index, "\n\n")
self.text.image = i #Very important, otherwise the thread gets blocked
index += 1
self.text.configure(state="disabled")
self.img_object_li.clear() #Avoid duplicates
self.__flagRefresh = False
def refresh(self):
self.__flagRefresh = True
def stop(self):
self.__flagKill = True
`
If you want to add a pdf afterwards, you have to make these modifications:
`
self.text.configure(state='normal')
for i in self.img_object_li:
self.text.image_create(END, image=i)
self.text.insert(END, "\n\n")
self.text.image = i #Very important, otherwise the thread gets blocked
self.text.configure(state="disabled")
self.img_object_li.clear() #Avoid duplicates
self.__flagRefresh = False
def add_pdf(self, pdf_location):
self.pdf_location = pdf_location
self.__flagRefresh = True
`
Example of use:
`
self.pdfView = obdoTkShowPDF(self, pdf_location=pathPDF, width=50, height=30)
self.pdfView.grid(row=1, column=1)
self.pdfView.start()
#do stuff
self.pdfView.stop()
self.pdfView.join()
`