Administrace komentářů

Dobrý den, lehce se sžívám s s pythonem, občas se trápím s PyQt4, ale na co jsem nerazil dnes, to nedokážu pobrat. tady je celá třída (formulář), která by měla zajistit převzetí parametrů pro vytvoření X * Y souborů.

Celý formulář pracuje zatím dobře, dnes jsem chtěl dopsat funkci test_image_name, kde by se zobrazoval náhled na budoucí jméno (jedno z mnoha) obrazů.

Tato funkce se chová divně, protože vlastnosti self.cf_images a self.cf_sets vidí jako vynulované, i když funkce get_total_size vypočítá velikost sady obrazů (na základě těchto proměnných) správně. Ještě divnější je, že pokud na konec funkce test_image_name připíšu řádek self.validating() tak vše funguje.

Prosil bych o radu / vysvětlení / odhalení chyby co je kde špatně

první řádek funkce test_image_name vypisuje správně obsah toho pole a dvě nuly, funkce tedy po pár řádcích skončí.

Omlouvám se za ten balast dole, raději to sem dám celé, ať se máte čeho chytit

Žádné chybové logy nevdím

#! /usr/bin/python
# -*- coding: utf-8 -*-

from PyQt4 import QtGui,  uic
from PyQt4.QtCore import *
from functions import *


class imageset_params( QtGui.QDialog ) :
	def __init__( self, Parent = None ):
		super(imageset_params, self).__init__( )
		self.parent = Parent
		self.app = self.parent.app
		self.config = self.parent.config
		self.oform=uic.loadUi('UI/imageset_params.ui')
		self.cf_sets = 0
		self.cf_images = 0
		self.cf_big = 0
		self.cf_others = 0
		self.cf_image_total_size = 0
		self.cf_path = ""
		self.cf_path_free = 0
		self.cf_path_totalsize = 0
		self.cf_path_exists = False
		self.cf_name = ""
		self.cf_sizeunit = ""
		self.cf_multipikator = 1024
		self.setup_ui()

	def setup_ui( self ) :
		self.oform.buttonBox.button( QtGui.QDialogButtonBox.Ok ).setEnabled( False )
		self.connect( self.oform.comboBox_path,       SIGNAL( 'editTextChanged(QString)' ),      self.path_test )
		self.connect( self.oform.radioButton_1000,    SIGNAL( "clicked()" ),                     self.set1000 )
		self.connect( self.oform.radioButton_1024,    SIGNAL( "clicked()" ),                     self.set1024 )
		self.connect( self.oform.spinBox_sets ,       SIGNAL( 'valueChanged(int)'),              self.get_total_size )
		self.connect( self.oform.spinBox_images ,     SIGNAL( 'valueChanged(int)'),              self.get_total_size )
		self.connect( self.oform.spinBox_bigger ,     SIGNAL( 'valueChanged(int)'),              self.get_total_size )
		self.connect( self.oform.spinBox_smaller ,    SIGNAL( 'valueChanged(int)'),              self.get_total_size )
		self.connect( self.oform.comboBox_bigger,     SIGNAL( 'currentIndexChanged ( int )' ) ,  self.get_total_size )
		self.connect( self.oform.comboBox_smaller,    SIGNAL( 'currentIndexChanged ( int )' ) ,  self.get_total_size )
		self.connect( self.oform.lineEdit_image_name, SIGNAL( "textChanged(QString)" ),          self.test_image_name )

		self.oform.radioButton_1024.setChecked( True )
		#print self.config.list_of_paths
		if ( len( self.config.list_of_paths ) > 0 ):
			self.oform.comboBox_path.addItems( self.config.list_of_paths )

	def set1024(self) :
		self.cf_multipikator = 1024
		self.get_total_size()

	def set1000(self) :
		self.cf_multipikator = 1000
		self.get_total_size()

	def path_test( self,  gui_path ) :
		self.path = unicode( gui_path ).strip()
		self.cf_path_exist, self.cf_path_totalsize, self.cf_path_free = stat_path( self.path )
		self.validating()

	def  select_path(self):
		#print "kliknuto"
		path = str( self.ui.comboBox_imagePath.currentText() ).strip()
		if ( path == ''  or( not( os.path.exists( path ) ) ) ) :
			path = os.getenv('HOME')

		imagepath = QtGui.QFileDialog.getExistingDirectory(
			self,
			self.trUtf8(u"Select  folder for image"),
			path,
			QtGui.QFileDialog.Options(QtGui.QFileDialog.ShowDirsOnly))
		if ( imagepath != "" ) :
			self.oform.comboBox_imagePath.setEditText(imagepath)
			# print imagepath


	def get_total_size( self ) :
		self.cf_big = int( self.oform.spinBox_bigger.value() )
		if ( self.cf_big  == 0) :
			return 0

		self.cf_others = int( self.oform.spinBox_smaller.value() )
		if ( self.cf_others  == 0) :
			return 0

		self.cf_sets = int( self.oform.spinBox_sets.value() )
		if ( self.cf_sets  == 0) :
			return 0

		self.cf_images = int( self.oform.spinBox_images.value() )
		if ( self.cf_images  == 0) :
			return 0

		bigger_koef = self.oform.comboBox_bigger.currentIndex()
		smaller_koef = self.oform.comboBox_smaller.currentIndex()

		bigger_size = int( self.cf_big *(self.cf_multipikator**( bigger_koef + 2 ) ) * self.cf_sets )
		smaller_size = int( self.cf_others *(self.cf_multipikator**( smaller_koef + 2 ) ) * self.cf_sets*(self.cf_images - 1) )

		self.cf_image_total_size = bigger_size + smaller_size
		self.validating()


	def test_image_name( self, iname ) :
		print iname,  self.cf_sets,  self.cf_images
		basename = unicode( iname )
		if ( self.cf_images == 0 ) :
			return
		if ( self.cf_sets == 0 ) :
			return

		iciphers = len( str( self.cf_images ) )
		sciphers = len( str( self.cf_sets ) )

		if ( iciphers  < 2 ):
			iciphers = 2
		if ( sciphers < 2 ) :
			sciphers = 2
		if ( basename.find( "%s" )  > -1 ):
			basename.replace("%s", "%0*d"%( sciphers,  3) )
		else :
			basename = basename + "_set_%0*d"%( sciphers,  3)

		if ( basename.find( "%i" )  > -1 ):
			basename.replace("%i", "%0*d"%( iciphers,  3) )
		else :
			basename = basename + "_img_%0*d"%( iciphers, 5)

		self.set_label( self.oform.label_image_name,  self.trUtf8( "image name example : %1").arg( basename ), "info" )

# tohle pak způsobí, že se funkce chová správně
# self.validating()






	def validating( self ) :
		self.oform.buttonBox.button( QtGui.QDialogButtonBox.Ok ).setEnabled( False )
		if ( not self.cf_path_exist ) :
			self.set_label( self.oform.label_free_space,  self.trUtf8( "Path does not exists" ), 'critical' )
			return
		it = ( self.cf_multipikator == 1024 )
		free = hr_value( self.cf_path_free,  2,  it )
		self.set_label( self.oform.label_free_space,  self.trUtf8( "Free space : %1" ).arg( free ), 'info' )

		if ( self.cf_image_total_size > self.cf_path_free ) :
			self.set_label(self.oform.label_image_size, self.trUtf8( ' No enough space !!! '), 'critical' )
			return

		if ( ( self.cf_path_free - self.cf_image_total_size )*20 < self.cf_path_totalsize ) :
			self.set_label(self.oform.label_image_size, self.trUtf8( ' Medium will be almost full !!! ' ), 'warning' )
		else :
			self.set_label(self.oform.label_image_size, self.trUtf8( "Total size of set : %1 ").arg( hr_value( self.cf_image_total_size,  2,  it )), 'info' )
		self.oform.buttonBox.button( QtGui.QDialogButtonBox.Ok ).setEnabled( True )


	def set_label(self,  label,  text,  style = ""):
		label.setText( text )
		if ( style == 'info' ) :
			label.setStyleSheet( "color: black; font-weight: normal" )
		if ( style == 'warning' ) :
			label.setStyleSheet( "color: violet; font-weight: bold" )
		if ( style == 'critical' ) :
			label.setStyleSheet( "color: red; font-weight: bold" )