sudokusolver.kv

<MainLayout>:
	orientation: 'vertical' 
	cell_grid: cell_grid
	FloatLayout:
		id: f_layout
		CellGrid:
			id: cell_grid
			size_hint: None, None
			height: min(f_layout.height, f_layout.width)
			width: self.height
			pos_hint: {"center_x": .5, "center_y": .5}
	BoxLayout:
		size_hint_y: None
		height: root.height * .1
		orientation: 'horizontal'
		Button:
			text: 'Solve'
			on_press: root.cell_grid.on_solve_click()
		Button: 
			text: 'Clear'
			on_press: root.cell_grid.on_reset_click()

<CellGrid>:
	rows: 9
	cols: 9 

<CellBoxText>:
	font_size: self.height * .60
	halign: 'center'
	input_filter: 'int'
	multiline: False
	write_tab: False

<ErrorPopup>:
	title: "Error"
	size_hint: .5, .3
	BoxLayout:
		orientation: "vertical"
		Label:
			text: "There are no solutions to this puzzle"
			text_size: self.size
			font_size: self.height * .25
			halign: "center"
			valign: "center"
		Button:
			text: "Okay"
			text_size: self.size
			font_size: self.width * .25
			halign: "center"
			valign: "center"
			size_hint: .3, .5
			pos_hint: {"center_x": .5}
			on_press: root.dismiss()