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gojyuan

Jul 30, 2020 - 05:56

Hi,
I am a beginner in Pythonista and ios ( 2 months ) coming from a windows c# environment ( 37 years )
I am converting an existing c# application and trying to create printable html reports and forms ( not really sure what other options I have).

I am printing the reports by opening the html template and using airprint code that I have found on this forum ( print_html_orientation )

So far all has been good but now I am trying to include images and not having much luck. My application path structure has all of the html files in a separate directory..

I have seen threads that suggest that the script and images be in the same directory but this hasn’t worked. I have tried to use a file url in the HTML base element and also a file url when specifying the name of the image but this does not work as well.

Am I missing something regarding how the html is interpreted prior to printing.

stephen

Jul 30, 2020 - 06:27

Have you tried using a data stream like BytesIO formatted as JPEG?

gojyuan

Jul 30, 2020 - 07:09

Thank you, will give this a try. I am assuming i will be using this stream in the fileurl specified for the image.

ccc

Jul 30, 2020 - 07:54

Do you have a GitHub repo for this code or can you provide code for a minimum example?

stephen

Jul 30, 2020 - 08:05

@gojyuan

If said image is already saved to a file you can open it from its file url as theio.BytesIO object. this object should be able to be transfered through the network.

take a look at this post from stack here

seems like it may help you also

mikael

Jul 30, 2020 - 17:49

@gojyuan, do I understand you correctly: you want to print generated HTML pages with images, and presumably there are many, or there is some other reason not to print them manually?

Are you opening just an HTML file, or what, and how?

gojyuan

Jul 31, 2020 - 00:34

Thank you everyone for your suggestions. I finally have it working, including a form that has a background image. The styling is very touch and go - very easy to have it working one moment and not the next.

My application is a hospitality reservation / crm system ( my own business ). I was surprised at the comments regarding printing - is there another alternative that I am not aware of. Are most pythonista apps technical or gaming?

I use a lot of html for email layouts so to be able to use the same for printing is very convenient. and the app allows me to modify the template anytime.

<body>
    <img src="{logo}" alt="logo.jpg" width="50" height="50">
    <h1>Guest Details</h1>
    <hr>
    <table>
        <tr>
...

template = utils.template_path + '/GuestCheckIn.html'
text = None
with open(template,'r', encoding='utf-8') as infile:
    txt = infile.read() 

if txt is not None:         
    txt = txt.replace('{logo}',utils.get_file_url(utils.template_path + '/' + 'logo.jpg'))
    txt = txt.replace('{fullname}', self.booking.customer.full_name)
    txt = txt.replace('{fulladdr}', self.booking.customer.full_address(' '))
...
utils.print_html_orientation(txt)

Forum Archive

Cannot print images in html