class WaFF(BoxLayout):
def __init__(self, *args, **kwargs):
super(BoxLayout, self).__init__(*args, **kwargs)
self.textinput = TextInput(text='Enter elements separated by spaces', multiline=False,
size=(300, 50))
self.rut = Label(text='', pos=(450, 250))
self.add_widget(self.textinput)
self.textinput.bind(on_text_validate=self.chicken)
self.wextinput = TextInput(text='Enter given', multiline=False, size=(300, 50))
self.wextinput.bind(on_text_validate=self.alfredo)
self.wextinput.bind(focus=self.on_focus2)
self.reset = TextInput(text='Type reset to reset', multiline=False, size=(300, 50))
self.texts = [self.textinput, self.wextinput, self.reset]
self.textinput.bind(focus=self.on_focus)
self.reset.bind(on_text_validate=self.resets)
self.given = 0
self.atoms = 0
self.but = Label(text='Given: ' + str(self.given), pos=(425, 200))
self.tut = Label(text='' + str(self.atoms), pos=(425, 225))
self.mmlabel = Label(pos=((self.textinput.x + 50), (self.textinput.y + 100)))
self.atlabel = Label(pos=(350, 425))
self.molabel = Label(pos=(350, 400))
self.tolabel = Label(pos=(350, 450))
self.errorlabel = Label(pos=((self.textinput.x + 100), (self.textinput.y + 100)))
self.add_widget(self.but)
self.add_widget(self.tut)
self.add_widget(self.atlabel)
self.add_widget(self.molabel)
self.add_widget(self.tolabel)
self.mm = []
def chicken(self, *args):
msg = self.textinput.text
ci = msg.split()
tos = 0
try:
self.remove_widget(self.textinput)
except:
pass
try:
self.add_widget(self.wextinput)
except:
pass
a = Button(text='Calculate', pos=(600, 150), background_color=(.5, .2, .5, 1))
a.bind(on_release=partial(self.currentValue, self.calc(ci)))
self.add_widget(a)
def alfredo(self, *args):
try:
float(self.wextinput.text)
self.given = self.wextinput.text
self.but.text = 'Given: ' + str(self.given)
self.wextinput.text = 'Enter atoms'
self.wextinput.unbind(on_text_validate=self.alfredo)
except ValueError:
self.wextinput.text = 'Enter given'
def calc(self, alist):
try:
wnum = []
for i in alist:
if has_num(i):
wnum.append(i)
else:
wnum.append(i + '1')
intel = 0
for i in wnum:
if len(i) == 2:
intel += (float(rar[i[0]].mass) * float(i[1]))
elif len(i) == 3:
if i[1].isdigit():
intel += float(rar[i[0]].mass) * float(i[1] + i[2])
else:
intel += float(rar[i[0] + i[1]].mass) * float(i[2])
self.mmlabel.text = 'molar mass: ' + str(intel)
self.add_widget(self.mmlabel)
try:
self.remove_widget(self.errorlabel)
except:
pass
return intel
except KeyError:
self.errorlabel.text = 'Invalid input, enter elements again'
try:
self.add_widget(self.errorlabel)
except:
pass
try:
self.remove_widget(self.wextinput)
self.add_widget(self.textinput)
except:
pass
def currentValue(self, x, *args):
ele = Element(x, self.given, self.atoms)
atoms = float(ele.atoms) * float(ele.molecules)
self.atlabel.text = 'atoms: ' + str(atoms)
self.molabel.text = 'molecules: ' + str(ele.molecules)
self.tolabel.text = 'moles: ' + str(ele.moles)
self.remove_widget(self.wextinput)
try:
self.add_widget(self.reset)
except:
pass
def resets(self, *args):
self.clear_widgets()
try:
self.add_widget(self.textinput)
except:
pass
self.textinput.bind(on_text_validate=self.chicken)
self.given = 0
self.atoms = 0
self.reset.unbind(on_text_validate=self.resets)
self.add_widget(self.but)
self.add_widget(self.tut)
self.but.text = 'Given: ' + str(self.given)
self.tut.text = 'Atoms: ' + str(self.atoms)
def on_focus(self, instance, value, *args):
if value:
self.textinput.text = ''
def on_focus2(self, instance, value, *args):
if value:
self.wextinput.text = ''
class AcidBase(BoxLayout):
def __init__(self, *args, **kwargs):
super(BoxLayout, self).__init__(*args, **kwargs)
self.chemt = TextInput(text='1. pH, 2. H+, 3. OH-, 4. pOH', multiline=False,
size=(300, 50), input_filter=float)
self.chemt.bind(focus=self.on_focus)
self.chemt.bind(on_text_validate=self.setab)
self.acidbase = 0
self.errorlab = Label(pos=(self.chemt.x + 50, (self.chemt.y + 100)))
self.ph = Label(pos=(350, 375))
self.h = Label(pos=(350, 400))
self.oh = Label(pos=(350, 425))
self.poh = Label(pos=(350, 450))
self.labels = [self.ph, self.h, self.oh, self.poh]
for i in self.labels:
self.add_widget(i)
self.add_widget(self.chemt)
def setab(self, *args):
self.acidbase = self.chemt.text
if self.acidbase == '1':
self.chemt.text = 'Enter pH value'
self.chemt.unbind(on_text_validate=self.setab)
self.chemt.bind(on_text_validate=partial(self.calc, 1))
elif self.acidbase == '2':
self.chemt.text = 'Enter H+ value'
self.chemt.unbind(on_text_validate=self.setab)
self.chemt.bind(on_text_validate=partial(self.calc, 2))
elif self.acidbase == '3':
self.chemt.text = 'Enter OH- value'
self.chemt.unbind(on_text_validate=self.setab)
self.chemt.bind(on_text_validate=partial(self.calc, 3))
elif self.acidbase == '4':
self.chemt.text = 'Enter pOH value'
self.chemt.unbind(on_text_validate=self.setab)
self.chemt.bind(on_text_validate=partial(self.calc, 4))
def calc(self, x, *args):
if x == 1:
try:
theph = float(self.chemt.text)
self.ph.text = 'pH = ' + str(theph)
self.h.text = 'H+ = ' + phtoh(theph)
self.oh.text = 'OH- = ' + htoh(phtoh(theph))
self.poh.text = 'pOH = ' + str((14 - theph))
try:
self.remove_widget(self.errorlab)
except:
pass
except ValueError:
self.errorlab.text = 'Invalid, enter pH again'
try:
self.add_widget(self.errorlab)
except:
pass
if x == 2:
self.ph.text = 'pH = ' + ohtoph(float(self.chemt.text))
self.h.text = 'H+ = ' + str('%.2E' % float(self.chemt.text))
self.oh.text = 'OH- = ' + htoh(float(self.chemt.text))
self.poh.text = 'pOH = ' + str(14 - float(ohtoph(float(self.chemt.text))))
try:
self.remove_widget(self.errorlab)
except:
pass
if x == 3:
try:
he = float(constant) / float(self.chemt.text)
ph2 = -1 * math.log10(he)
self.ph.text = 'pH = ' + str(float(ph2))
self.h.text = 'H+ = ' + str('%.2E' % float(he))
self.oh.text = 'OH- = ' + str('%.2E' % float(self.chemt.text))
self.poh.text = 'pOH = ' + str(14 - float(ph2))
try:
self.remove_widget(self.errorlab)
except:
pass
except ValueError:
self.errorlab.text = 'Invalid, enter OH- again'
try:
self.add_widget(self.errorlab)
except:
pass
if x == 4:
try:
ohh = 10**(-float(self.chemt.text))
he = float(constant) / float(ohh)
self.ph.text = 'pH = ' + str(14 - float(self.chemt.text))
self.h.text = 'H+ = ' + str('%.2E' % float(he))
self.oh.text = 'OH- = ' + str('%.2E' % float(ohh))
self.poh.text = 'pOH = ' + self.chemt.text
try:
self.remove_widget(self.errorlab)
except:
pass
except ValueError:
self.errorlab.text = 'Invalid, enter pOH again'
try:
self.add_widget(self.errorlab)
except:
pass
def on_focus(self, instance, value, *args):
if value:
self.chemt.text = ''