Pyforms - Biblioteca python para desenvolvimento de aplicações GUI

Pyforms

O pyforms é uma biblioteca de desenvolvimento de aplicações GUI para o Python 2.7 e 3.

Nesta publicação vou apenas demonstrar como desenvolver uma simples aplicação. 

Para descobrir mais sobre o pyforms consulte estes links:

• https://github.com/UmSenhorQualquer/pyforms
• http://pyforms.readthedocs.org/

import pyforms
from pyforms   import BaseWidget
from pyforms.Controls  import ControlText
from pyforms.Controls  import ControlButton
from pyforms.Controls   import ControlList
from pyforms.Controls   import ControlSlider
from pyforms.Controls   import ControlPlayer

class ComputerVisionAlgorithm(BaseWidget):

    def __init__(self):
        super(ComputerVisionAlgorithm,self).__init__('Computer vision algorithm example')

        #Definition of the forms fields
        self._videofile     = ControlFile('Video')
        self._outputfile    = ControlText('Results output file')
        self._threshold     = ControlSlider('Threshold', 114, 0,255)
        self._blobsize      = ControlSlider('Minimum blob size', 100, 100,2000)
        self._player        = ControlPlayer('Player')
        self._runbutton     = ControlButton('Run')

        #Define the function that will be called when a file is selected
        self._videofile.changed     = self.__videoFileSelectionEvent
        #Define the event that will be called when the run button is processed
        self._runbutton.value       = self.__runEvent
        #Define the event called before showing the image in the player
        self._player.processFrame   = self.__processFrame

        #Define the organization of the Form Controls
        self._formset = [ 
            ('_videofile', '_outputfile'), 
            '_threshold', 
            ('_blobsize', '_runbutton'), 
            '_player'
        ]


    def __videoFileSelectionEvent(self):
        """
        When the videofile is selected instanciate the video in the player
        """
        self._player.value = self._videofile.value

    def __processFrame(self, frame):
        """
        Do some processing to the frame and return the result frame
        """
        return frame

    def __runEvent(self):
        """
        After setting the best parameters run the full algorithm
        """
        pass

if __name__ == "__main__":   pyforms.startApp( ComputerVisionAlgorithm )

Resultado: