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    Welcome!

    This is the community forum for my apps Pythonista and Editorial.

    For individual support questions, you can also send an email. If you have a very short question or just want to say hello — I'm @olemoritz on Twitter.


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

    Pythonista
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    • jmv38
      jmv38 @cvp last edited by

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

      cvp 1 Reply Last reply Reply Quote 0
      • cvp
        cvp @jmv38 last edited by

        @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 1 Reply Last reply Reply Quote 0
        • jmv38
          jmv38 @cvp last edited by

          @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 2 Replies Last reply Reply Quote 0
          • cvp
            cvp @jmv38 last edited by

            @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

            1 Reply Last reply Reply Quote 0
            • cvp
              cvp @jmv38 last edited by

              @jmv38 said:

              limit the number of photos because i have 1600

              Perhaps, use collections or get_moments

              jmv38 1 Reply Last reply Reply Quote 0
              • jmv38
                jmv38 @cvp last edited by 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 1 Reply Last reply Reply Quote 0
                • cvp
                  cvp @jmv38 last edited by

                  @jmv38 Too complex for me 😀

                  jmv38 2 Replies Last reply Reply Quote 0
                  • jmv38
                    jmv38 @cvp last edited by

                    @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.

                    1 Reply Last reply Reply Quote 0
                    • jmv38
                      jmv38 @cvp last edited by

                      @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 2 Replies Last reply Reply Quote 0
                      • cvp
                        cvp @jmv38 last edited by

                        @jmv38 did you try ui.RENDERING_MODE_ORIGINAL

                        1 Reply Last reply Reply Quote 0
                        • cvp
                          cvp @jmv38 last edited by

                          @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 2 Replies Last reply Reply Quote 0
                          • jmv38
                            jmv38 @cvp last edited by

                            @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?

                            cvp 1 Reply Last reply Reply Quote 0
                            • jmv38
                              jmv38 @cvp last edited by

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

                              1 Reply Last reply Reply Quote 0
                              • cvp
                                cvp @jmv38 last edited by

                                @jmv38 said:

                                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?

                                You asked gray and I didn't know you had a gray background

                                jmv38 2 Replies Last reply Reply Quote 0
                                • jmv38
                                  jmv38 @cvp last edited by

                                  @cvp i have finished my first version of the program
                                  here https://gist.github.com/1b67ba85ca7bd7b23c7058216895372c
                                  this will:

                                  • let you choose an album xxxx
                                  • load the 200 first pictures
                                  • present them in a photopicker
                                  • from which you can build photo album pages (collage)
                                  • it creates 2 new albums:
                                  • xxxx_pages : the album pages
                                  • xxxx_pages_and_photos: as it says. useful to upload the album in photoweb printing service for instance
                                  • your own photos and albums are not modified

                                  to see how to use it tap ‘?’ button: it opens a youtube video that shows it in action.

                                  It is designed to work in lanscape mode
                                  let me know how it works for you.

                                  1 Reply Last reply Reply Quote 0
                                  • jmv38
                                    jmv38 @cvp last edited by

                                    @cvp hello again!

                                    I am trying to make a high definition image with draw_snapshot()
                                    I works fine until the context width is 4000, but i get a black image when the context width is 5000 or more. I need 9000....
                                    Any suggestion?
                                    Thanks.

                                    cvp 2 Replies Last reply Reply Quote 0
                                    • cvp
                                      cvp @jmv38 last edited by cvp

                                      @jmv38 Sorry, I forgot to tell you, 20 days ago, I had tried your Appli.py it I don't have any album in my photos, thus I tap the X in the first screen, and your program crashes in line
                                      inputAlbum = allAlbums[inputTitle] 😢

                                      1 Reply Last reply Reply Quote 0
                                      • cvp
                                        cvp @jmv38 last edited by

                                        @jmv38 this works for me

                                        import ui
                                        iv = ui.ImageView()
                                        iv.image = ui.Image.named('P1020096.JPG') # 3888 x 2592 pixels
                                        wi,hi = iv.image.size
                                        iv.frame = (0,0,wi,hi)
                                        print(wi,hi)															# 3888 2592
                                        w = 2*wi
                                        h = 2*hi
                                        print(w,h)																# 7776 5184
                                        with ui.ImageContext(w,h) as ctx:
                                        	iv.draw_snapshot()
                                        	ui_image = ctx.get_image()
                                        	with open('t1.jpg', 'wb') as f:
                                        		f.write(ui_image.to_jpeg(0.9))			# 15552 x 10368 
                                        
                                        1 Reply Last reply Reply Quote 0
                                        • cvp
                                          cvp last edited by

                                          But 9000 x 6000 crashes..

                                          jmv38 2 Replies Last reply Reply Quote 0
                                          • jmv38
                                            jmv38 @cvp last edited by

                                            @cvp thank for the info
                                            i check again

                                            1 Reply Last reply Reply Quote 0
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