Containers for photos, with scroll, drag&drop between them

cvp

I could agree to put in GitHub my program but I don't want to provide any support because it often crashes with big or multiple photos 😢 and I don't have enough free time to debug it.

cvp

See also PhotosPickerView.py

jmv38

@cvp thanks for the 2nd example, it is inspiring.

Actually i dont use grids i prefer to place and zoom and cut each photo manually.

If you put your whole program in github i certainly wont demand support!

I think I’ll post my work step by step in gists and this forum as I progress. Not sure how fast I’ll go though...

Btw, I am french too (Grenoble) so no pb with the langage. I’ll continue anyway to write in english by respect for people in this forum.

Thanks.

jmv38

@cvp from the doc, it seems the tableView is vertical only. Is there a way to have is horizontal too? Initially i wanted my camera roll container to be vertical, but the photo group containers to be horizontal (and themselves inside a scrollable vertical container too).
So i should pbly use a scrollview instead for my base photo container?

jmv38

@cvp mmm PhotosPickerView.py seems a bit over my head, with all this objC functions...

cvp

@jmv38 said:

f you put your whole program in github i certainly wont demand support!

here

cvp

@jmv38 said:

seems a bit over my head, with all this objC functions...

It is not so complex as it seems...

jmv38

@cvp thanks for juxtapositionDePhotos.py
all the bricks i need are there
=> this is really going to help me.
thanks.

cvp

@jmv38 quick and dirty horizontal scroll view

import photos
import ui

def main():
	assets = photos.get_assets()
	#assets = photos.pick_asset(assets=assets,multi=True)
	d = 100
	wsv = min(400,d * len(assets))
	sv = ui.ScrollView()
	sv.frame = (0,0,wsv,d)
	x = 0
	for i in range(0,len(assets)):
		b = ui.Button(name=str(i))
		#b = ui.ImageView(name=str(i))
		b.border_color = 'blue'
		b.border_width = 1
		ui_image = assets[i].get_ui_image().with_rendering_mode(ui.RENDERING_MODE_ORIGINAL)
		w,h = ui_image.size
		w = d * w/h
		b.frame = (x,0,w,d)
		b.image = ui_image
		def b_action(sender):
			sender.superview.name = 'tapped=' + sender.name
		b.action = b_action
		sv.add_subview(b)
		x = x + w
	sv.content_size = (x,d)
	sv.present('sheet')

if __name__ == '__main__':
	main()

jmv38

@cvp excellent! thanks.
It is nice to have the function in a really small piece of code.
I had to limit the number of photos because i have 1600 and that crashes my app. I’ll manage that.

Another thing: for the interractions between panels i learned (from coding in Codea) that it is much easier to wire things together via a register/trigger message system. Do you have something available?

cvp

@jmv38 said:

it is much easier to wire things together via a register/trigger message system. Do you have something available?

No, never done like that. I always use normal way of ui. Good luck

cvp

@jmv38 said:

limit the number of photos because i have 1600

Perhaps, use collections or get_moments

jmv38

@cvp here an example of a very simple event class i found on google and modified for my needs. I also added an example of usage.

class EventHook(object):

    def __init__(self):
        self.__handlers = []

    def __iadd__(self, handler):
        self.__handlers.append(handler)
        return self

    def __isub__(self, handler):
        self.__handlers.remove(handler)
        return self

    def __call__(self, *args, **keywargs):
        for handler in self.__handlers:
            handler(*args, **keywargs)

    def clearObjectHandlers(self, inObject):
        for theHandler in self.__handlers:
            if theHandler.im_self == inObject:
                self -= theHandler
                
if __name__ == '__main__':
  class Watcher():
      def __init__(self):
          self.incoming = EventHook()
          self.leaving = EventHook()
  
  class Greeter():
    def __init__(self,me):
      self.me = me
    def sayHello(self, name):
      print('{}: hello Mister {}'.format(self.me,name))
    def sayGoodbye(self, name):
      print('{}: goobye Mister {}'.format(self.me,name))
      
  class Maid():
    def __init__(self,me):
      self.me = me
    def sayHello(self, name):
      print('{}: hello Mister {}'.format(self.me,name))
    def sayGoodbye(self, name):
      if name != 'DSK':
        print('{}: goobye Mister {}'.format(self.me,name))
      else:
        print('{}: You f... s.. o. a b...!'.format(self.me))
  
  from console import clear
  clear()
  Isee = Watcher()
  deskMan = Greeter('desk man Georges')
  maid = Maid('maid Sandra')
  
  # make the connections:
  Isee.incoming += lambda name: print('\nM. {} is comming...'.format(name))
  Isee.incoming += deskMan.sayHello
  Isee.incoming += maid.sayHello
  
  Isee.leaving += lambda name: print('\nM. {} is leaving...'.format(name))
  Isee.leaving += maid.sayGoodbye
  Isee.leaving += deskMan.sayGoodbye
  
  # remove listener from the event
  
  # fire event
  Isee.incoming('Clinton')
  Isee.leaving('Clinton')

cvp

@jmv38 Too complex for me 😀

jmv38

@cvp i can understand what you feel: it is exactly what i thought the first time saw this! It took me several months to start to understand it, but once i did, bam!, it opened a huge box of possibilties because it made a complex project so much simpler. But I wont try to convert you, you’ll see for yourself as i use it in my project if you think it is usefull...
Thanks.

jmv38

@cvp i am in the final polishing phase of my project.
I have pb with button icons: they render in color when i want a gray rendering (the one shown in the editor).
my code:

img = ui.Image('iow:refresh_32').with_rendering_mode(ui.RENDERING_MODE_TEMPLATE)
    clear_button.image = img

any suggestion?
thanks.

cvp

@jmv38 did you try ui.RENDERING_MODE_ORIGINAL

cvp

@jmv38 this is ok, I think

img = ui.Image('iow:refresh_32')#.with_rendering_mode(ui.RENDERING_MODE_ORIGINAL)
b.image = img
b.tint_color = 'gray'

jmv38

@cvp thanks.
but it still doesnt work: now the button shows in gray, not white, and is not visible on my gray background.
I wonder how to get it simply as it shows in the editor?

jmv38

@cvp you know what? it works with ORIGINAL
looks like omz inverted TEMPLATE and ORIGINAL values
thanks.