Finding a more elegant way of communicating between views

[cvp]

@superrune Then, change in OpenFileWindow, set the FileWindow as a child of self which is the pixeleditor

    def openFileWindow(self,sender):
        fv = fileWindow()
        self.add_subview(fv)

And in def x():

    def x(self):
        print ('Loader superview type = ', type(self.superview))

[cvp]

@superrune other big problem, when you present the FileWindow, the PixelEditor is no more presented, thus try without presenting it:

    def openFileWindow(self,sender):
        fv = fileWindow()
        self.add_subview(fv)
        #fv.present()
        #fv = fileWindow()
        #v.present()
        print('File window opened.')

[cvp]

@superrune And last little problem, to "send" the selected file name to PixelEditor, use something like

        # Sends the selected image to the pixel Editor
        self.superview.name = selectedFile

and you will see the name of the file on the title bar of the PixelEditor View.

[superrune]

@cvp said:

print ('Loader superview type = ', type(self.superview))

Thanks,

I still have to do a fv.present() inside the openFileWindow function, right? The window will not show up otherwise...

print ('Loader superview type = ', type(self.superview)) now returns a NoneType, though.

I still want to put the selected file name into fileLabel.text - how would you go about doing that?

[cvp]

@superrune some answers written before your last post, isn't it?

[cvp]

@superrune file name in label

        #self.superview.name = selectedFile
        self.superview['File Label'].text = selectedFile

[cvp]

@superrune other problem

    def fileSelected(self,sender):
        # This does not work..
        filePreview.background_color = 'red'

does not work because filePreview does not exist

[cvp]

@superrune TableView does not have an action...I'll show you how to do, wait

[cvp]

@superrune this

        filelist.delegate = self
        #filelist.action = self.fileSelected # This does not work...

and this instead your fileSelected

    def tableview_did_select(self, tableview, section, row):
        # Called when a row was selected.
        self['filePreview'].background_color = 'red'
        
    #def fileSelected(self,sender):
        # This does not work..
        #self['filePreview'].background_color = 'red'

[superrune]

Cool, now most of the script seems to work as it should. Thanks again!

I changed the text assignment to this, and now it appears where I intended:

        # Sends the selected image to the pixel Editor
        self.superview['File Label'].text = selectedFile 

filePreview should exist though, should it not? I created it as an imageview a couple lines up, so is should be within the scope of the file window. Looks more like the function isnt called at all when I press the different table lines.

Here is how it looks right now:

import ui
from glob import glob
from os.path import basename

class fileWindow(ui.View):
    def __init__(self):
        self.frame=(100, 150, 300, 300)
        self.name = 'File window'
        self.border_width = 2
        print ('Loader superview at init:', self.superview)
        
        imagefiles = [basename(x) for x in glob('*.*')]

        
        filelistData = ui.ListDataSource(imagefiles)
        filelistData.delete_enabled=False
        
        filelist = ui.TableView(frame=(10, 10 ,150, 280), data_source=filelistData, name='filelist')
        filelist.row_height = 24
        filelist.action = self.fileSelected # This does not work...
        self.add_subview(filelist)
        
        filePreview = ui.ImageView(frame=(170,10,120,100))
        filePreview.background_color = 'black'
        self.add_subview(filePreview)
        
        loadButton = ui.Button(name='Load', frame=(170,120,64,32), title='Load')
        loadButton.background_color = 'white'
        loadButton.action = self.loadAction
        self.add_subview(loadButton)
        
        ui.delay(self.x,0.01)
        
    def x(self):
        print ('Loader superview type = ', type(self.superview))
        
    def loadAction(self,sender):
        selectedFile = self['filelist'].data_source.items[self['filelist'].selected_row[1]]
        print ('Selected ' + selectedFile + ' from sender: ' + sender.name)
        # Sends the selected image to the pixel Editor
        self.superview['File Label'].text = selectedFile
        
    def fileSelected(self,sender):
        # This does not work..
        print('Gonk!!')
        filePreview.background_color = 'red'
        
class pixelEditor(ui.View): 
    def __init__(self, width=640, height=480):
        self.bg_color = 'grey'
            
        fileButton = ui.Button(name='File', frame=(10,80,64,32), title='File:')
        fileButton.background_color = 'white'
        fileButton.action = self.openFileWindow
        self.add_subview(fileButton)
        
        fileLabel = ui.Label(frame=(100, 80, 300, 32), font=('HelveticaNeue-Light', 32), text='___')
        fileLabel.name = 'File Label'
        self.add_subview(fileLabel)
        
        print(self.superview)
        
    def openFileWindow(self, sender):
        fv = fileWindow()
        self.add_subview(fv)
        #fv.present()
        print('File window opened.')
    

v = pixelEditor()
v.present('fullscreen')

[superrune]

Cool, saw your answer now!! I keep replying to fast :)

[cvp]

@superrune to see images like jpg, ping, gif,

Put in init

        filePreview.content_mode = ui.CONTENT_SCALE_ASPECT_FIT

And in selection

    def tableview_did_select(self, tableview, section, row):
        # Called when a row was selected.
        try:
            fil = tableview.data_source.items[row]
            self['filePreview'].background_color = 'red'
            self['filePreview'].image = ui.Image.named(fil)
        except Exception as e:
            # not an image
            #print(e)
            pass

[cvp]

@superrune Of course, these 3 lines may be commented, they have been added only to show you that self.superview is known only after init...

        ui.delay(self.x,0.01)        
    def x(self):
        print ('Loader superview type = ', type(self.superview))

[cvp]

@superrune If you want a preview of a lot of files types, not only images, do

from os.path import basename,abspath
import sys

and

        filePreview = ui.ImageView(frame=(170,10,120,100))
        filePreview.name = 'filePreview'
        filePreview.background_color = 'black'
        filePreview.content_mode = ui.CONTENT_SCALE_ASPECT_FIT
        self.add_subview(filePreview)
        
        textview = ui.TextView(name='textview')
        textview.frame = filePreview.frame
        self.add_subview(textview)
        
        webview = ui.WebView(name='webview')
        webview.frame = filePreview.frame
        self.add_subview(webview)

and

    def tableview_did_select(self, tableview, section, row):
        # Called when a row was selected.
        try:
            fil = tableview.data_source.items[row]
            i = fil.rfind('.')
            ext = fil.lower()[i:]
            if ext in ['.txt','.dat','.py','.md']:
                with open(fil,'r',encoding='utf-8') as f:
                    t = f.read()
                self['textview'].text = t
                self['textview'].bring_to_front()
            elif ext in ['.png','.jpg','.jpeg','.bmp','.tif','.tiff']:
                self['filePreview'].image = ui.Image.named(fil)
                self['filePreview'].bring_to_front()
            elif ext in ['.gif','.htm','.html','.webarchive','.pdf','.mov','.mp3','.wav','.m4a','.mp4','.avi','.doc','.docx','.xls','.xlsx','.pps','.ppt','.gmap']:
                f = sys.argv[0]			# folder of script
                i = fil.rfind('/')
                self['webview'].load_url(abspath(f[:i+1]+fil))
                self['webview'].bring_to_front()
            else:
                self['filePreview'].background_color = 'red'
                self['filePreview'].bring_to_front()
        except Exception as e:
            # not an image
            print(e)
            pass

[superrune]

Thanks @cvp! This is great!

[cvp]

@superrune 👍
Don't hesitate for any new question

You have to know that there is a FilePicker from omz and other ones....