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layout.kv
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layout.kv
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# To debug screens, uncomment the following lines:
############
#<Widget>:
# canvas.after:
# Line:
# rectangle: self.x+1,self.y+1,self.width-1,self.height-1
# dash_offset: 5
# dash_length: 3
############
<WhiteBorderedLabel>:
canvas.after:
Color:
rgb: 1,1,1
Line:
rectangle: self.x+1,self.y+1,self.width-1,self.height-1
<ColoredBorderedLabel>:
canvas.after:
Color:
rgb: 0.6,0.6,0.6
Line:
rectangle: self.x+1,self.y+1,self.width-1,self.height-1
<Button>:
background_color: 0, 0, 0, 1
<ColoredButton>:
background_color: 0.110, 0.306, 0.643, 0.7
<MainMenuScreen>:
title: title
about_label: about_label
ScrollView
GridLayout:
cols: 1
spacing: '20dp'
padding: '150dp', 0
size_hint_y: None
height: self.minimum_height
canvas:
Color:
rgba: 0.071, 0.116, 0.314, 0.7
Rectangle:
size: self.size
pos: self.pos
Label:
id: title
size_hint_y: None
height: '100dp'
font_size: '22sp'
text: 'Operating System Algorithms Visualization App'
Button:
text: 'CPU Scheduling Algorithms'
size_hint_y: None
height: root.module_button_height
on_press:
root.manager.transition.direction = 'left'
root.manager.current = 'cpu_form'
Button:
text: 'Deadlock Avoidance Algorithm'
size_hint_y: None
height: root.module_button_height
on_press:
root.manager.transition.direction = 'left'
root.manager.current = 'da_form'
Button:
text: 'Deadlock Detection Algorithm'
size_hint_y: None
height: root.module_button_height
on_press:
root.manager.transition.direction = 'left'
root.manager.current = 'dd_form'
Button:
text: 'Contiguous Memory Allocation Strategies'
size_hint_y: None
height: root.module_button_height
on_press:
root.manager.transition.direction = 'left'
root.manager.current = 'mem_form'
Button:
text: 'Page Replacement Algorithms'
size_hint_y: None
height: root.module_button_height
on_press:
root.manager.transition.direction = 'left'
root.manager.current = 'page_form'
Button:
text: 'Disk Scheduling Algorithms'
size_hint_y: None
height: root.module_button_height
on_press:
root.manager.transition.direction = 'left'
root.manager.current = 'disk_form'
BoxLayout:
size_hint_y: None
height: '60dp'
padding: '100dp', '15dp'
Button:
text: 'About'
on_press:
root.toggle_about_text()
Label:
id: about_label
text: ''
size_hint_y: None
height: '40dp'
<CPUInputScreen>:
on_pre_enter: root.bind_widgets()
layout_form: layout_form
num_processes: num_processes
#dispatch_latency: dispatch_latency
algo_spinner: algo_spinner
variant_spinner: variant_spinner
visualize_button: visualize_button
BoxLayout:
canvas:
Color:
rgba: 0.071, 0.106, 0.314, 0.6
Rectangle:
size: self.size
pos: self.pos
orientation: 'vertical'
spacing: '10dp'
BoxLayout:
orientation: 'horizontal'
padding: '10dp', '5dp'
size_hint_y: None
height: '40dp'
spacing: '20dp'
BoxLayout:
orientation: 'horizontal'
size_hint_x: 0.5
Label:
text: 'Number of processes: '
size_hint_x: 0.5
text_size: self.size
halign: 'left'
valign: 'middle'
TextInput:
id: num_processes
multiline: 'False'
size_hint_x: 0.5
BoxLayout:
size_hint_x: 0.5
# Uncomment for static dispatch latency input
#BoxLayout:
# orientation: 'horizontal'
# size_hint_x: 0.5
# Label:
# text: 'Dispatch latency: '
# size_hint_x: 0.5
# text_size: self.size
# halign: 'left'
# valign: 'middle'
# TextInput:
# id: dispatch_latency
# multiline: 'False'
# size_hint_x: 0.5
BoxLayout:
size_hint_y: None
height: '40dp'
Label:
text: 'Information about the scheduling algorithm:'
text_size: self.size
padding: '10dp', '0dp'
halign: 'left'
valign: 'middle'
BoxLayout:
orientation: 'horizontal'
size_hint_y: None
height: '40dp'
BoxLayout:
orientation: 'horizontal'
padding: '5dp', '0dp'
size_hint_x: 0.5
size_hint_y: None
height: '40dp'
Label:
text: 'Algorithm:'
size_hint_x: 0.4
valign: 'middle'
text_size: self.size
padding: '5dp', '5dp'
Spinner:
id: algo_spinner
text:'Select an algorithm'
size_hint_x: 0.6
values: ('First Come First Served', 'Shortest Job First', 'Priority', 'Round Robin', 'Multilevel Queue', 'Multilevel Feedback Queue')
BoxLayout:
orientation: 'horizontal'
size_hint_y: None
height: '40dp'
size_hint_x: 0.5
padding: '5dp', '0dp'
Label:
text: 'Variant'
size_hint_x: 0.4
valign: 'middle'
text_size: self.size
padding: '5dp', '0dp'
Spinner:
id: variant_spinner
text:'-'
size_hint_x: 0.6
values: ('Preemptive', 'Non-preemptive')
disabled: True
# For adding scroll view directly from KV file (also need to call bind function)
#ScrollView
#size: self.size
#GridLayout:
#id: layout
#cols: 1
#size_hint_y: None
#height: '2000dp'
BoxLayout:
id: layout_form
orientation: 'vertical'
GridLayout:
size_hint_y: None
height: '35dp'
cols: 2
Button:
text: 'Back'
on_release:
root.manager.transition.direction = 'right'
root.manager.current = 'menu'
Button:
id: visualize_button
text: 'Visualize'
disabled: True
on_release:
root.manager.transition.direction = 'left'
root.manager.current = 'cpu_output'
<CPUOutputScreen>:
layout: layout
on_pre_enter: root.calculate_schedule()
BoxLayout:
orientation: 'vertical'
BoxLayout:
orientation: 'vertical'
id: layout
GridLayout:
size_hint_y: None
height: '35dp'
cols: 2
ColoredButton:
text: 'Back'
on_press:
root.manager.transition.direction = 'right'
root.manager.current = 'cpu_form'
ColoredButton:
text: 'Exit'
on_press: app.stop()
<DeadlockAvoidanceInputScreen>:
on_pre_enter: root.bind_widgets()
num_processes: num_processes
num_resource_types: num_resource_types
form: form
visualize_button: visualize_button
#request_form: request_form
#request_process: request_process
BoxLayout:
canvas:
Color:
rgba: 0.071, 0.106, 0.314, 0.6
Rectangle:
size: self.size
pos: self.pos
orientation: 'vertical'
BoxLayout:
orientation: 'horizontal'
padding: '10dp', '5dp'
size_hint_y: None
height: '40dp'
size_hint_x: 0.6
Label:
size_hint_x: 0.5
text: 'Number of processes:'
text_size: self.size
halign: 'left'
TextInput:
size_hint_x: 0.5
id: num_processes
multiline: 'False'
haligh: 'left'
BoxLayout:
orientation: 'horizontal'
padding: '10dp', '5dp'
size_hint_y: None
height: '40dp'
size_hint_x: 0.6
Label:
#size_hint_x: 0.5
valign: 'middle'
text: 'Number of resource types:'
text_size: self.size
TextInput:
#size_hint_x: 0.5
id: num_resource_types
multiline: 'False'
#Label:
#text: 'Information about the current state -'
#size_hint_y: 0.07
BoxLayout:
orientation: 'vertical'
id: form
GridLayout:
size_hint_y: None
height: '35dp'
cols: 2
Button:
text: 'Back'
on_release:
root.manager.transition.direction = 'right'
root.manager.current = 'menu'
Button:
id: visualize_button
text: 'Visualize'
disabled: True
on_release:
root.manager.transition.direction = 'left'
root.manager.current = 'da_output'
<DeadlockAvoidanceOutputScreen>:
on_pre_enter: root.calculate()
layout: layout
BoxLayout:
orientation: 'vertical'
BoxLayout:
orientation: 'vertical'
id: layout
GridLayout:
size_hint_y: None
height: '35dp'
cols: 2
ColoredButton:
text: 'Back'
on_press:
root.manager.transition.direction = 'right'
root.manager.current = 'da_form'
ColoredButton:
text: 'Exit'
on_press: app.stop()
<DeadlockDetectionInputScreen>:
on_pre_enter: root.bind_widgets()
num_processes: num_processes
num_resource_types: num_resource_types
form: form
visualize_button: visualize_button
#request_form: request_form
#request_process: request_process
BoxLayout:
canvas:
Color:
rgba: 0.071, 0.106, 0.314, 0.6
Rectangle:
size: self.size
pos: self.pos
orientation: 'vertical'
BoxLayout:
orientation: 'horizontal'
padding: '10dp', '5dp'
size_hint_y: None
height: '40dp'
size_hint_x: 0.6
Label:
size_hint_x: 0.5
text: 'Number of processes:'
text_size: self.size
halign: 'left'
TextInput:
size_hint_x: 0.5
id: num_processes
multiline: 'False'
halign: 'center'
BoxLayout:
orientation: 'horizontal'
padding: '10dp', '5dp'
size_hint_y: None
height: '40dp'
size_hint_x: 0.6
Label:
size_hint_x: 0.5
valign: 'middle'
text: 'Number of resource types:'
text_size: self.size
TextInput:
size_hint_x: 0.5
id: num_resource_types
multiline: 'False'
BoxLayout:
orientation: 'vertical'
id: form
GridLayout:
size_hint_y: None
height: '35dp'
cols: 2
Button:
text: 'Back'
on_release:
root.manager.transition.direction = 'right'
root.manager.current = 'menu'
Button:
id: visualize_button
text: 'Visualize'
disabled: True
on_release:
root.manager.transition.direction = 'left'
root.manager.current = 'dd_output'
<DeadlockDetectionOutputScreen>:
on_pre_enter: root.calculate()
layout: layout
BoxLayout:
orientation: 'vertical'
BoxLayout:
orientation: 'vertical'
id: layout
GridLayout:
size_hint_y: None
height: '35dp'
cols: 2
ColoredButton:
text: 'Back'
on_press:
root.manager.transition.direction = 'right'
root.manager.current = 'dd_form'
ColoredButton:
text: 'Exit'
on_press: app.stop()
<MemoryInputScreen>:
on_pre_enter: root.bind_widgets()
num_processes: num_processes
mem_size: mem_size
algo_spinner: algo_spinner
visualize_button: visualize_button
form: form
BoxLayout:
canvas:
Color:
rgba: 0.071, 0.106, 0.314, 0.6
Rectangle:
size: self.size
pos: self.pos
orientation: 'vertical'
spacing: '10dp'
BoxLayout:
orientation: 'horizontal'
padding: '10dp', '5dp'
size_hint_y: None
height: '40dp'
size_hint_x: 0.6
Label:
size_hint_x: 0.5
text: 'Number of processes:'
text_size: self.size
halign: 'left'
TextInput:
size_hint_x: 0.5
id: num_processes
multiline: 'False'
halign: 'center'
BoxLayout:
orientation: 'horizontal'
padding: '10dp', '5dp'
size_hint_y: None
height: '40dp'
size_hint_x: 0.6
Label:
size_hint_x: 0.5
valign: 'middle'
text: 'Size of main memory (KB):'
text_size: self.size
TextInput:
size_hint_x: 0.5
id: mem_size
multiline: 'False'
BoxLayout:
orientation: 'horizontal'
padding: '10dp', '0dp'
size_hint_x: 0.6
size_hint_y: None
height: '40dp'
Label:
text: 'Algorithm:'
size_hint_x: 0.5
text_size: self.size
valign: 'middle'
Spinner:
id: algo_spinner
text:'Select an algorithm'
size_hint_x: 0.5
size_hint_y: None
height: '40dp'
values: ('First Fit', 'Best Fit', 'Worst Fit')
BoxLayout:
orientation: 'vertical'
id: form
GridLayout:
size_hint_y: None
height: '35dp'
cols: 2
Button:
text: 'Back'
on_release:
root.manager.transition.direction = 'right'
root.manager.current = 'menu'
Button:
id: visualize_button
text: 'Visualize'
disabled: True
on_release:
root.manager.transition.direction = 'left'
root.manager.current = 'mem_output'
<MemoryOutputScreen>:
on_pre_enter: root.calculate()
layout: layout
BoxLayout:
orientation: 'vertical'
BoxLayout:
orientation: 'vertical'
id: layout
GridLayout:
size_hint_y: None
height: '35dp'
cols: 2
ColoredButton:
text: 'Back'
on_press:
root.manager.transition.direction = 'right'
root.manager.current = 'mem_form'
ColoredButton:
text: 'Exit'
on_press: app.stop()
<PageInputScreen>:
on_pre_enter: root.bind_widgets()
num_frames: num_frames
form: form
algo_spinner: algo_spinner
visualize_button: visualize_button
BoxLayout:
canvas:
Color:
rgba: 0.071, 0.106, 0.314, 0.6
Rectangle:
size: self.size
pos: self.pos
orientation: 'vertical'
spacing: '10dp'
BoxLayout:
orientation: 'horizontal'
padding: '10dp', '5dp'
size_hint_y: None
height: '40dp'
size_hint_x: 0.6
Label:
size_hint_x: 0.4
valign: 'middle'
text: 'Number of frames:'
text_size: self.size
TextInput:
size_hint_x: 0.6
id: num_frames
multiline: 'False'
BoxLayout:
orientation: 'horizontal'
padding: '10dp', '0dp'
size_hint_x: 0.6
size_hint_y: None
height: '40dp'
Label:
text: 'Algorithm:'
size_hint_x: 0.4
text_size: self.size
valign: 'middle'
Spinner:
id: algo_spinner
text:'Select an algorithm'
size_hint_x: 0.6
values: ('First In First Out', 'Optimal', 'Least Recently Used', 'Second Chance', 'Enhanced Second Chance', 'Least Frequently Used', 'Most Frequently Used')
BoxLayout:
orientation: 'vertical'
id: form
GridLayout:
size_hint_y: None
height: '35dp'
cols: 2
Button:
text: 'Back'
on_release:
root.manager.transition.direction = 'right'
root.manager.current = 'menu'
Button:
id: visualize_button
text: 'Visualize'
disabled: True
on_release:
root.manager.transition.direction = 'left'
root.manager.current = 'page_output'
<PageOutputScreen>:
on_pre_enter: root.calculate()
layout: layout
BoxLayout:
orientation: 'vertical'
BoxLayout:
orientation: 'vertical'
id: layout
GridLayout:
size_hint_y: None
height: '35dp'
cols: 2
ColoredButton:
text: 'Back'
on_press:
root.manager.transition.direction = 'right'
root.manager.current = 'page_form'
ColoredButton:
text: 'Exit'
on_press: app.stop()
<DiskInputScreen>:
on_pre_enter: root.bind_widgets()
num_cylinders: num_cylinders
form: form
pos_head: pos_head
algo_spinner: algo_spinner
visualize_button: visualize_button
BoxLayout:
canvas:
Color:
rgba: 0.071, 0.106, 0.314, 0.6
Rectangle:
size: self.size
pos: self.pos
orientation: 'vertical'
spacing: '10dp'
BoxLayout:
orientation: 'horizontal'
padding: '10dp', '5dp'
size_hint_y: None
height: '40dp'
size_hint_x: 0.8
Label:
text: 'Number of cylinders in disk: '
size_hint_x: 0.5
text_size: self.size
halign: 'left'
TextInput:
id: num_cylinders
multiline: 'False'
size_hint_x: 0.5
BoxLayout:
orientation: 'horizontal'
padding: '10dp', '5dp'
size_hint_y: None
height: '40dp'
size_hint_x: 0.8
Label:
text: 'Current position of read/write head: '
size_hint_x: 0.5
text_size: self.size
halign: 'left'
TextInput:
id: pos_head
multiline: 'False'
size_hint_x: 0.5
BoxLayout:
orientation: 'horizontal'
padding: '10dp', '0dp'
size_hint_x: 0.8
size_hint_y: None
height: '40dp'
Label:
text: 'Algorithm:'
size_hint_x: 0.5
text_size: self.size
halign: 'left'
valign: 'middle'
padding: '0dp', '5dp'
Spinner:
id: algo_spinner
text:'Select an algorithm'
size_hint_x: 0.5
values: ('First Come First Served', 'Shortest Seek Time First', 'SCAN', 'C-SCAN', 'LOOK', 'C-LOOK')
BoxLayout:
id: form
orientation: 'vertical'
GridLayout:
size_hint_y: None
height: '35dp'
cols: 2
Button:
text: 'Back'
on_release:
root.manager.transition.direction = 'right'
root.manager.current = 'menu'
Button:
id: visualize_button
text: 'Visualize'
disabled: True
on_release:
root.manager.transition.direction = 'left'
root.manager.current = 'disk_output'
<DiskOutputScreen>:
on_pre_enter: root.calculate()
layout: layout
BoxLayout:
orientation: 'vertical'
BoxLayout:
orientation: 'vertical'
id: layout
GridLayout:
size_hint_y: None
height: '35dp'
cols: 2
ColoredButton:
text: 'Back'
on_press:
root.manager.transition.direction = 'right'
root.manager.current = 'disk_form'
ColoredButton:
text: 'Exit'
on_press: app.stop()