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main.py
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main.py
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from kivy.config import Config
Config.set('graphics', 'fullscreen','auto')
Config.set('input', 'mouse', 'mouse,multitouch_on_demand')
from kivy.app import App
from kivy.uix.screenmanager import ScreenManager, Screen
from kivy.uix.floatlayout import FloatLayout
from kivy.uix.stacklayout import StackLayout
from kivy.uix.label import Label
from kivy.uix.button import Button
from kivy.clock import Clock
from kivy.graphics import Line, Rectangle, Color
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.video import Video
from kivy.uix.image import Image
from kivy.uix.widget import Widget
from kivy.animation import Animation
from kivy.base import EventLoop
from kivy.core.text import Label as CoreLabel
import pandas as pd
import math
#import objgraph
#import cProfile
#import pdb
import time
import filetype
from socket import *
class PopupVideo(Video):
def on_texture(self, temp1, temp2):
anim = Animation(opacity=1, duration=0.5)
anim.start(self)
def __init__(self, **args):
super(PopupVideo, self).__init__(**args)
self.opacity = 0
class TimeLabel(Label):
def __init__(self, time, unit, font_name, font_size, font_color, **kwargs):
super(TimeLabel, self).__init__(**kwargs)
self.time = time
if unit == '':
self.unit = unit
else:
self.unit = ' ' + unit
self.text = str(round(time)) + self.unit
self.center_x = 0
self.font_size = font_size
self.valign = 'middle'
self.font_name = font_name
self.color = (font_color[0],font_color[1],font_color[2],font_color[3])
pos_hint = {'center_y': 0.5}
class Overlay(StackLayout):
# This is a template overlay the needs to be subclassed to work.
def show_content(self, title, media, text):
print('Overlay.show_content()')
self.title_label.text = title
# Create an invisible, one-line label to measure the amount of text
temp_text = CoreLabel(text=title, size_hint=(1,1),
font_size=self.title_label.font_size, valign='center', markup=True, opacity=0, disabled=True)
temp_text.refresh()
self.title_label.height = temp_text.content_size[1]
self.media_source = media
self.text_widget.text = text
# Disable background buttons
for item in self.parent.active_items:
item.disabled = True
self.pos_hint = {'center_x': 0.5, 'center_y': 0.5}
self.disabled = False
self.parent.active_overlay = self
def hide_content(self, *args):
print('Overlay.hide_content()')
# Re-enable background buttons
for item in self.parent.active_items:
item.disabled = False
self.pos_hint = {'center_x': 0.5, 'center_y': -1.}
self.disabled = True
self.parent.active_overlay = None
def draw(self, *args, no_resize=False):
print('Overlay.draw(), no_resize='+str(no_resize))
if not no_resize:
app = App.get_running_app()
self.width = app.root_window.width*0.5
self.height = app.root_window.height*0.75
self.canvas.before.clear()
with self.canvas.before:
# Fade out things behind the overlay
if self.disabled == False:
Color(0,0,0,0.5)
self.back_rect = Rectangle(pos=self.parent.parent.pos, size=self.parent.parent.size)
# Draw overlay background
col = self.options['background_color']
Color(col[0], col[1], col[2], col[3])
self.rect = Rectangle(pos=self.pos, size=self.size)
def make_visible(self, *args):
self.opacity = 1
def update_size(self, *args):
print('Overlay.update_size()')
self.height = self.title_label.height + \
self.content_container.height + \
self.dismiss_button.height
def on_state(self, *args):
# Change the color of the button when it's pressed
state = self.dismiss_button.state
if state == 'normal':
self.dismiss_button.background_color = self.options['button_normal_color']
else:
self.dismiss_button.background_color = self.options['button_down_color']
def __init__(self, options, **kwargs):
super(Overlay, self).__init__(**kwargs)
self.options = options
self.orientation = 'tb-lr'
self.spacing = 0
self.size_hint = (None, None)
self.pos_hint = {'center_x': 0.5, 'center_y': 0.5}
self.media_source = ''
self.title_label = Label(size_hint=(1,None),
font_size=options['title_font_size'],
font_name=options['title_font_name'],
color=options['title_font_color'],
markup=True,
valign='center',
halign='center')
self.add_widget(self.title_label)
self.content_container = BoxLayout(orientation='horizontal', size_hint = (1,None))
self.add_widget(self.content_container)
self.dismiss_button = Button(text='Go back',
font_size = options['button_font_size'],
color = options['button_font_color'],
font_name = options['button_font_name'],
size_hint = (1,None),
background_normal='',
background_down='',
background_color=options['button_normal_color'],
on_release=self.hide_content)
self.dismiss_button.bind(state=self.on_state)
self.dismiss_button.height = 2*self.dismiss_button.font_size
self.add_widget(self.dismiss_button)
self.bind(pos=self.draw)
class TextOverlay(Overlay):
def show_content(self, title, text):
self.opacity = 0
super(TextOverlay, self).show_content(title, None, text)
Clock.schedule_once(self.make_visible)
def draw(self, *args):
# Create an invisible, one-line label to measure the amount of text
temp_text = CoreLabel(text=self.text_widget.text, size_hint=(0.45,1),
font_size=self.text_widget.font_size, valign='center', markup=True, opacity=0, disabled=True)
temp_text.refresh()
text_height = temp_text.content_size[1]
text_width = temp_text.content_size[0]
text_area = text_height*text_width#*1.25 # Scale factor to account for line spacing
self.content_container.height = ((2*text_area/3.)**.5)
self.width = 1.5*self.height
super(TextOverlay, self).draw(*args, no_resize=True)
# Update the text box size once everything is redrawn
Clock.schedule_once(self.update_size)
def update_size(self, *args):
# Function to refresh the size of the textbox. Called automatically after the
# overlay is redrawn.
self.text_widget.text_size = (0.95*self.text_widget.size[0],0.95*self.text_widget.size[1])
super(TextOverlay, self).update_size(self, *args)
def __init__(self, options, **kwargs):
super(TextOverlay, self).__init__(options, **kwargs)
self.text_widget = Label(text='',
size_hint=(1,1),
font_size=options['body_font_size'],
font_name=options['body_font_name'],
color=options['body_font_color'],
valign='center',
markup=True)
self.content_container.add_widget(self.text_widget)
class ImageOverlay(Overlay):
def show_content(self, title, media, text):
#print('------------')
#print('ImageOverlay.show_content()')
self.opacity = 0
super(ImageOverlay, self).show_content(title, media, text)
self.image_widget.source = 'media/'+media
self.image_widget.reload()
Clock.schedule_once(self.make_visible)
def draw(self, *args, no_resize=False):
#print('ImageOverlay.draw(no_resize='+str(no_resize)+')')
# Create an invisible, one-line label to measure the amount of text
temp_text = CoreLabel(text=self.text_widget.text, size_hint=(0.45,1),
font_size=self.text_widget.font_size, valign='center', markup=True, opacity=0, disabled=True)
temp_text.refresh()
image_ratio = self.image_widget.image_ratio
text_height = temp_text.content_size[1]
text_width = temp_text.content_size[0]
# Do some math to balance the size of the image and text blurb
k = text_height*text_width*1.25 # Scale factor to account for line spacing
self.content_container.height = ((k/image_ratio)**.5)
# The following line assumes the image and text each take up .45 of the overlay
self.width = (image_ratio*((k/image_ratio)**.5))/0.45
#self.height = 700
# Update the text box size once everything is redrawn
#Clock.schedule_once(self.update_text_size)
Clock.schedule_once(self.update_size)
super(ImageOverlay, self).draw(*args, no_resize=True)
def update_size(self, *args):
#print('ImageOverlay.update_size()')
# Function to refresh the size of the textbox. Called automatically after the
# overlay is redrawn.
self.text_widget.text_size = self.text_widget.size
super(ImageOverlay, self).update_size(self, *args)
def __init__(self, options, **kwargs):
super(ImageOverlay, self).__init__(options, **kwargs)
# Lay out the content container with an image and text
image_width = 0.45
text_width = 0.45
spacer_width = (1. - image_width - text_width)/3.
spacer1 = Label(text='', size_hint=(spacer_width,1))
self.content_container.add_widget(spacer1)
self.image_widget = Image(source='', size_hint=(image_width,1), allow_stretch=True)
self.content_container.add_widget(self.image_widget)
spacer2 = Label(text='', size_hint=(spacer_width,1))
self.content_container.add_widget(spacer2)
self.text_widget = Label(text='This is temporary text',
size_hint=(text_width,1),
font_size=options['body_font_size'],
font_name=options['body_font_name'],
color=options['body_font_color'],
valign='center',
markup=True)
self.content_container.add_widget(self.text_widget)
spacer3 = Label(text='', size_hint=(spacer_width,1))
self.content_container.add_widget(spacer3)
class VideoOverlay(Overlay):
def __init__(self, options, **kwargs):
super(VideoOverlay, self).__init__(options,**kwargs)
class Item(StackLayout):
def more_info(self, *args):
if self.media_type == 'image':
self.parent.image_overlay.show_content(self.title_text, self.media_source, self.long)
elif self.media_type == 'none':
self.parent.text_overlay.show_content(self.title_text, self.long)
def on_size(self, *args):
# Recomputes the size of the widget when the window changes
pass
def draw(self, *args):
# Redraws the item's background when it moves
if self.media_type == 'image':
self.body_text.text_size = (self.body_text.width, None)
#self.body_image.width = self.body_container.width*0.45
self.body_container.height = max(self.body_text.texture_size[1],
self.body_image.width/self.body_image.image_ratio)
else:
self.body_text.text_size = (self.body_text.width*0.933, None)
self.body_container.height = self.body_text.texture_size[1]
self.height = self.title.height + \
self.body_container.height + \
self.more.height + \
10 # accounts for spacer
app = App.get_running_app()
self.target = app.root_window.height/2.
self.canvas.before.clear()
with self.canvas.before:
# Draw the connecting line
col = self.options['line_color']
Color(col[0], col[1], col[2], col[3])
self.line = Line(points=[self.center_x, self.center_y, self.center_x, self.target], width=3)
# Draw the background
col = self.options['background_color']
Color(col[0], col[1], col[2], col[3])
self.rect = Rectangle(pos=self.pos, size=self.size)
#if self.body.texture != None:
#self.body.texture.mag_filter = 'linear'
def on_state(self, *args):
# Change the color of the button when it's pressed
state = self.more.state
if state == 'normal':
self.more.background_color = self.options['button_normal_color']
else:
self.more.background_color = self.options['button_down_color']
def __init__(self, name, time, unit, rank, short, long,
media, options, **kwargs):
super(Item, self).__init__(**kwargs)
self.options = options
self.target = 0 # must be before pos
self.size_hint = (0.2, None)
self.pos_hint = {'top': 0.45}
self.orientation = 'tb-lr'
self.slot = 'bottom'
self.spacing = 0
self.center_x = 0
self.color = (1, 1, 1, 1)
self.text = short
self.short = short
self.long = long
if self.long == '':
self.no_overlay = True
else:
self.no_overlay = False
self.title_text = name
self.time = time
if unit == '':
self.unit = ''
else:
self.unit = ' ' + unit
self.rank = rank
self.media_source = media
if media != '':
kind = filetype.guess('media/'+media)
if kind is not None:
type = kind.mime[0:5]
if type == 'image':
self.media_type = 'image'
elif type == 'video':
self.media_type = 'video'
else:
self.media_type = 'none'
print('Error: file ' + media + ' is of an unsupported type')
else:
self.media_type = 'none'
else:
self.media_type = 'none'
self.title = Label(text=str(round(time))+self.unit,
size_hint=(1,None),
font_name=options['title_font_name'],
font_size=options['title_font_size'],
color=options['title_font_color'],
markup=True)
self.title.height = self.title.font_size*1.5
self.body_container = BoxLayout(orientation='horizontal',
size_hint=(1,None))
if self.media_type != 'image': # Display only text on main timeline
self.body_text = Label(text=self.text,
font_name=options['body_font_name'],
font_size=options['body_font_size'],
color=options['body_font_color'],
markup=True)
self.body_container.add_widget(self.body_text)
else: # Display image and text on main timeline
# Lay out the content container with an image and text
image_width = 0.45
text_width = 0.45
spacer_width = (1. - image_width - text_width)/3.
spacer1 = Label(text='', size_hint=(spacer_width,1))
self.body_text = Label(text=self.text,
font_name=options['body_font_name'],
font_size=options['body_font_size'],
color=options['body_font_color'],
markup=True,
size_hint = (text_width, 1))
spacer2 = Label(text='', size_hint=(spacer_width,1))
self.body_image = Image(source='media/'+self.media_source,
size_hint=(image_width,1), allow_stretch=True)
spacer3 = Label(text='', size_hint=(spacer_width,1))
self.body_container.add_widget(spacer1)
self.body_container.add_widget(self.body_text)
self.body_container.add_widget(spacer2)
self.body_container.add_widget(self.body_image)
self.body_container.add_widget(spacer3)
self.more = Button(text='Tap to learn more',
size_hint=(1,None),
font_name=options['button_font_name'],
font_size=options['button_font_size'],
color=options['button_font_color'],
background_normal='',
background_down='',
background_color=options['button_normal_color'],
on_release=self.more_info)
self.more.height = 2*self.more.font_size
self.more.bind(state=self.on_state)
self.add_widget(self.title)
self.add_widget(self.body_container)
self.add_widget(Label(size_hint=(1,None), height=10)) # Spacer
if not self.no_overlay: # Hide the learn more button if there's no overlay to show
self.add_widget(self.more)
self.bind(pos=self.draw)
class LineWidget(Widget):
def draw(self, *args):
with self.canvas:
# Draw the line
Color(self.color[0], self.color[1], self.color[2], self.color[3])
self.line = Rectangle(pos=(0, self.height/2.-20),
size=(self.width, 40))
def __init__(self, color, *args):
super(LineWidget, self).__init__(*args)
self.color = color
self.size_hint = (1,1)
self.pos_hint = {'center.x': 0.5, 'center_y': 0.5}
self.bind(size=self.draw)
class Timeline(FloatLayout):
items = list() # Holds the widgets for each item on the timeline
active_items = list() # Only those widgets with opacity > 0
neighbors = list() # Each element is a list of the closest widgets for the corresponding item
labels = list() # Holds the time labels
label_sep = 0.2 # Fraction of the screen between labels
active_overlay = None # holds the name of the active overlay, if it exists
def add_item(self, item):
item.center_x = (item.time - self.time_window_left)/self.time_window_size*self.width
self.add_widget(item)
self.items.append(item)
def add_label(self, label):
label.center_x = (label.time - self.time_window_left)/self.time_window_size*self.width
self.add_widget(label)
self.labels.append(label)
def position(self, full=False):
# Function to place items and labels on the timeline in their correct position
# full=True is only needed when we've moved things vertically
if full:
for item in self.items:
# Place horizontally
item.center_x = (item.time - self.time_window_left)/self.time_window_size*self.width
# Place vertically
if item.opacity > 0: # The widgets we want to show
if item.slot == 'top':
item.pos_hint = {'y': 0.55}
else:
item.pos_hint = {'top': 0.45}
else: # Hide other widgets off the screen so they don't steal touch
item.pos_hint = {'top': -.1}
else:
for item in self.active_items:
# Place horizontally
item.center_x = (item.time - self.time_window_left)/self.time_window_size*self.width
for label in self.labels:
# Place horizontally
label.center_x = (label.time - self.time_window_left)/self.time_window_size*self.width
if label.center_x < 0 or label.center_x > self.width:
self.translate_label(label)
self.check_labels()
def refresh_items(self, *args):
self.arrange_items()
for item in self.items:
item.draw()
def check_labels(self):
# Rapid swiping combined with translate_label() can result in labels
# that are too close together. Zooming in/out will also misplace labels
shift_list = self.labels[1:]+self.labels[:1]
error = False
for i in range(len(self.labels)):
if abs(self.labels[i].time - shift_list[i].time) < 0.17*abs(self.time_window_size):
error = True
if error:
for i in range(len(self.labels)):
time = self.time_window_left+(2*i+1)/10.*self.time_window_size
self.labels[i].time = time
self.labels[i].text = str(round(time)) + self.labels[i].unit
def translate_label(self, label):
# Function called if label slides off the screen
if self.reversed == 'True':
if label.time < self.time_window_right:
label.time = self.time_window_left
elif label.time > self.time_window_left:
label.time = self.time_window_right
else:
if label.time > self.time_window_right:
label.time = self.time_window_left
elif label.time < self.time_window_left:
label.time = self.time_window_right
label.center_x = (label.time - self.time_window_left)/self.time_window_size*self.width
label.text = str(round(label.time)) + label.unit
self.check_labels()
def arrange_items(self, *args):
# Function to lay out the items so that they don't block each other
x_list = list()
width_list = list()
slot_list = list()
opacity_list = list()
self.active_items = list() # Reset the active items
# Start everything visible and in a line
for item in self.items:
item.opacity = 1
item.disabled = False
x_list.append(item.x)
width_list.append(item.width)
slot_list.append(item.slot)
opacity_list.append(item.opacity)
# First arrange them top/bottom to resolve collisions
for i in range(len(x_list)-1):
for j in range(i+1,len(x_list)):
col = False
if slot_list[i] == slot_list[j]: # Objects in different slots don't collide
if x_list[i] <= x_list[j] and (x_list[i]+width_list[i]) > x_list[j]:
col = True
elif x_list[j] <= x_list[i] and (x_list[j]+width_list[j]) > x_list[i]:
col = True
if col:
if slot_list[j] == 'top':
slot_list[j] = 'bottom'
else:
slot_list[j] = 'top'
# If that's not enough, selectively hide them
for i in range(len(x_list)-1):
if opacity_list[i] > 0: # Hidden items don't get a vote
for j in range(i+1,len(x_list)):
col = False
if slot_list[i] == slot_list[j]:
if x_list[i] < x_list[j] and (x_list[i]+width_list[i]) > x_list[j]:
col = True
elif x_list[j] < x_list[i] and (x_list[j]+width_list[j]) > x_list[i]:
col = True
if col:
opacity_list[j] = 0
bound_left = self.time_window_left - self.time_window_size/2.
bound_right = self.time_window_right + self.time_window_size/2.
for i in range(len(x_list)):
self.items[i].slot = slot_list[i]
self.items[i].opacity = opacity_list[i]
if bound_left < self.items[i].time < bound_right and self.items[i].opacity > 0:
self.active_items.append(self.items[i])
self.position(full=True)
def translate_line(self, frac):
# Function to handle slding left/right on the timeline
# frac is the distance to slide in fraction of window width
trans_mag = frac*self.time_window_size
temp_left = self.time_window_left - trans_mag
temp_right = self.time_window_right - trans_mag
t_per_px = self.time_window_size/self.width
item_half_size = self.width*0.1*t_per_px
if self.reversed == 'True':
if temp_left < self.time_start - item_half_size and\
temp_right > self.time_stop+item_half_size: # Not outside the bounds
# Update the timeline parameters
self.time_window_left = temp_left
self.time_window_right = temp_right
self.time_window_size = self.time_window_right - self.time_window_left
# Cull items not on or near the screen to improve performance
bound_left = self.time_window_left - self.time_window_size/2.
bound_right = self.time_window_right + self.time_window_size/2.
self.active_items = list()
for item in self.items:
if bound_left > item.time > bound_right and item.opacity > 0:
self.active_items.append(item)
self.position()
else:
if temp_left > self.time_start - item_half_size and\
temp_right < self.time_stop+item_half_size: # Not outside the bounds
# Update the timeline parameters
self.time_window_left = temp_left
self.time_window_right = temp_right
self.time_window_size = self.time_window_right - self.time_window_left
# Cull items not on or near the screen to improve performance
bound_left = self.time_window_left - self.time_window_size/2.
bound_right = self.time_window_right + self.time_window_size/2.
self.active_items = list()
for item in self.items:
if bound_left < item.time < bound_right and item.opacity > 0:
self.active_items.append(item)
self.position()
def scale_line(self, dist, center):
# Funciton to handle zooming in and zooming out
dist_frac = dist/self.width # Fraction of screen change
dist_years = abs(self.time_window_size*dist_frac)*2 # Change factor to change scaling speed
lean = 1 - center/self.parent.width # Fraction of distance to add to each side
if self.reversed == 'True':
if dist > 0: # Zoom out
temp_left = self.time_window_left + (1-lean)*dist_years
temp_right = self.time_window_right - lean*dist_years
else: # Zoom in
temp_left = self.time_window_left - (1-lean)*dist_years
temp_right = self.time_window_right + lean*dist_years
t_per_px = self.time_window_size/self.width
item_half_size = self.width*0.1*t_per_px
if temp_left > temp_right and \
temp_left < self.time_start - item_half_size and\
temp_right > self.time_stop+item_half_size and \
abs(temp_right - temp_left) > self.time_window_min:
self.time_window_left = temp_left
self.time_window_right = temp_right
self.time_window_size = self.time_window_right - self.time_window_left
self.arrange_items()
else:
if dist > 0: # Zoom out
temp_left = self.time_window_left - (1-lean)*dist_years
temp_right = self.time_window_right + lean*dist_years
else: # Zoom in
temp_left = self.time_window_left + (1-lean)*dist_years
temp_right = self.time_window_right - lean*dist_years
t_per_px = self.time_window_size/self.width
item_half_size = self.width*0.1*t_per_px
if temp_left < temp_right and \
temp_left > self.time_start - item_half_size and\
temp_right < self.time_stop+item_half_size and \
(temp_right - temp_left) > self.time_window_min:
self.time_window_left = temp_left
self.time_window_right = temp_right
self.time_window_size = self.time_window_right - self.time_window_left
self.arrange_items()
def draw(self, *args):
with self.canvas.before:
# Draw the background
col = self.options['background_color']
Color(col[0],col[1],col[2],col[3])
self.back_rect = Rectangle(pos=self.pos, size=self.size, source='test.png')
# Draw the line
# Color(1,1,1,1)
# self.line = Rectangle(pos=(0, self.height/2.-20),
# size=(self.width, 40))
def __init__(self, options, **kwargs):
super(FloatLayout, self).__init__(**kwargs)
self.options = options
self.reversed = options['reverse_time']
self.size_hint = (1,1)
self.center_y = self.height/2.
# Set up the timeline parameters
self.time_start = options['time_start'] # The earliest possible date
self.time_stop = options['time_stop'] # The latest possible date
self.time_window_left = options['time_window_left'] # Date of left edge of window
self.time_window_right = options['time_window_right'] # Date of right edge of window
self.time_window_min = options['time_window_min'] # Least amount of time the line can show
self.time_window_size = self.time_window_right - self.time_window_left
# Load the background image, if there is one
if self.options['background_source'] is not '':
self.background_image = Image(source='media/'+self.options['background_source'],
size_hint=(1,1),
pos_hint={'center_x': 0.5, 'center_y': 0.5},
allow_stretch=True)
self.add_widget(self.background_image)
# Add in the horizontal line
self.add_widget(LineWidget(options['line_color']))
self.title = Label(text = options['title'],
size_hint = (1,0.1),
pos_hint = {'center_x': 0.5, 'top': 0.99},
font_size = options['title_font_size'],
font_name = options['title_font_name'],
color = options['title_font_color'])
self.add_widget(self.title)
self.subtitle = Label(text = options['subtitle'],
size_hint = (1,0.1),
pos_hint = {'center_x': 0.5, 'y': 0.01},
font_size = options['subtitle_font_size'],
font_name = options['subtitle_font_name'],
color = options['subtitle_font_color'])
self.add_widget(self.subtitle)
self.bind(size=self.draw)
class TimelineScreen(Screen):
# This screen holds the main timeline. It is responsible for parsing detected
# touches to determine if pinch-to-zoom or scrolling is happening. The rest of
# this screen is setup in the kv file.
start = 0
active_touch = list()
def on_touch_down(self, touch):
if self.parent.screen.timeline.active_overlay is None: # Can only move when no overlay is up
if self.timeline.active_overlay is None: # Can't manipulate the timeline is overlay is up
if len(self.active_touch) < 2:
self.active_touch.append(touch)
if len(self.active_touch) == 2:
self.pinch_start = abs(self.active_touch[0].x - self.active_touch[1].x)
super(Screen, self).on_touch_down(touch)
def on_touch_move(self, touch):
if self.parent.screen.timeline.active_overlay is None: # Can only move when no overlay is up
if len(self.active_touch) > 0:
if touch is self.active_touch[0]:
trans = touch.x - touch.px
self.timeline.translate_line(trans/float(self.timeline.width))
if touch in self.active_touch and len(self.active_touch) == 2:
cur_pinch = math.sqrt((self.active_touch[0].x - self.active_touch[1].x)**2 +\
(self.active_touch[0].y - self.active_touch[1].y)**2)
old_pinch = math.sqrt((self.active_touch[0].px - self.active_touch[1].px)**2 +\
(self.active_touch[0].py - self.active_touch[1].py)**2)
center = (self.active_touch[0].x + self.active_touch[1].x)/2.
self.timeline.scale_line(old_pinch - cur_pinch, center)
super(Screen, self).on_touch_move(touch)
def on_touch_up(self, touch):
if self.parent.screen.timeline.active_overlay is None: # Can only move when no overlay is up
if len(self.active_touch) > 0:
if touch in self.active_touch:
self.active_touch.remove(touch)
else: # Dismiss the overlay if you tap outside it
if not self.parent.screen.timeline.active_overlay.collide_point(touch.x, touch.y):
self.parent.screen.timeline.active_overlay.hide_content()
# Catch problems where we lose track of the number of active touches
if len(EventLoop.touches) == 0 and len(self.active_touch) != 0:
self.active_touch = list()
super(Screen, self).on_touch_up(touch)
class ScreenManagement(ScreenManager):
item_options = {'title_font_size': 28,
'title_font_name': 'Roboto-Bold.ttf',
'title_font_color': (1,1,1,1),
'body_font_size': 24,
'body_font_name': 'Roboto-Regular.ttf',
'body_font_color': (1,1,1,1),
'button_font_size': 24,
'button_font_name': 'Roboto-Regular.ttf',
'button_font_color': (1,1,1,1),
'button_normal_color': (145./255,52./255,52./255, 1),
'button_down_color': (81./255,28./255,28./255,1),
'line_color': (1,1,1,1),
'background_color': (52./255,75./255,145./255,1)}
overlay_options = {'title_font_size': 28,
'title_font_name': 'Roboto-Bold.ttf',
'title_font_color': (1,1,1,1),
'body_font_size': 24,
'body_font_name': 'Roboto-Regular.ttf',
'body_font_color': (1,1,1,1),
'button_font_size': 24,
'button_font_name': 'Roboto-Regular.ttf',
'button_font_color': (1,1,1,1),
'button_normal_color': (145./255,52./255,52./255, 1),
'button_down_color': (81./255,28./255,28./255,1),
'background_color': (52./255,75./255,145./255,1)}
timeline_options = {'filename': '',
'reverse_time': 'False',
'background_color': (0,0,0,1),
'background_source': '',
'line_color': (1,1,1,1),
'label_font_color': (0,0,0,1),
'label_font_size': 35,
'label_font_name': 'Roboto-Bold.ttf',
'title': '',
'title_font_size': 75,
'title_font_name': 'Roboto-Bold.ttf',
'title_font_color': (1,1,1,1),'title': '',
'subtitle': '',
'subtitle_font_size': 75,
'subtitle_font_name': 'Roboto-Bold.ttf',
'subtitle_font_color': (1,1,1,1),
'time_start': 1900,
'time_stop': 2000,
'time_window_left': 1900,
'time_window_right': 2000,
'time_window_min': 0,
'time_unit': ''}
def check_in(self, *args):
# Function to broadcast a UDP packet confirming that it's active
s = socket(AF_INET, SOCK_DGRAM)
s.setsockopt(SOL_SOCKET, SO_BROADCAST, 1)
s.sendto(b'timeline', ('255.255.255.255', 12345))
def setup(self):
self.get_config()
self.screen = TimelineScreen()
self.screen.timeline = Timeline(self.timeline_options)
self.screen.add_widget(self.screen.timeline)
self.add_widget(self.screen)
Clock.schedule_once(self.populate_timeline)
self.check_in()
Clock.schedule_interval(self.check_in, 60) # Once per mintue
def set_time_range(self, value1, value2):
# Function to set the start and stop times for the timeline
if self.timeline_options['reverse_time'] == 'True': # Larger numbers mean older time
self.timeline_options['time_start'] = max(value1, value2)
self.timeline_options['time_stop'] = min(value1, value2)
else: # Larger numbers mean newer ("normal" timeline)
self.timeline_options['time_start'] = min(value1, value2)
self.timeline_options['time_stop'] = max(value1, value2)
def set_start_range(self, value1, value2):
# Function to set the initial left and right edges of the screen
if self.timeline_options['reverse_time'] == 'True': # Larger numbers mean older time
self.timeline_options['time_window_left'] = max(value1, value2)
self.timeline_options['time_window_right'] = min(value1, value2)
else: # Larger numbers mean newer ("normal" timeline)
self.timeline_options['time_window_left'] = min(value1, value2)
self.timeline_options['time_window_right'] = max(value1, value2)
def get_config(self):
# Function to parse arguments from a configuration file
# dt passed by clock. We ignore it
options_set = list()
try:
with open('config.conf', 'r') as f:
for line in f:
# Item options
if line[0:21].lower() == 'item_title_font_size:':
self.item_options['title_font_size'] = int(line[21:].strip())
options_set.append('item_title_font_size:')
if line[0:21].lower() == 'item_title_font_name:':
self.item_options['title_font_name'] = line[21:].strip()
options_set.append('item_title_font_name:')
if line[0:22].lower() == 'item_title_font_color:':
s = line[22:].strip().split(',')
self.item_options['title_font_color'] = (float(s[0])/255,
float(s[1])/255,
float(s[2])/255,
1)
options_set.append('item_title_font_color:')
if line[0:20].lower() == 'item_body_font_size:':
self.item_options['body_font_size'] = int(line[20:].strip())
options_set.append('item_body_font_size:')
if line[0:20].lower() == 'item_body_font_name:':
self.item_options['body_font_name'] = line[20:].strip()
options_set.append('item_body_font_name:')
if line[0:21].lower() == 'item_body_font_color:':
s = line[21:].strip().split(',')
self.item_options['body_font_color'] = (float(s[0])/255,
float(s[1])/255,
float(s[2])/255,
1)
options_set.append('item_body_font_color:')
if line[0:22].lower() == 'item_button_font_size:':
self.item_options['button_font_size'] = int(line[22:].strip())
options_set.append('item_button_font_size:')
if line[0:22].lower() == 'item_button_font_name:':
self.item_options['button_font_name'] = line[22:].strip()
options_set.append('item_button_font_size:')
if line[0:23].lower() == 'item_button_font_color:':
s = line[23:].strip().split(',')
self.item_options['button_font_color'] = (float(s[0])/255,
float(s[1])/255,
float(s[2])/255,
1)
options_set.append('item_button_font_color:')
if line[0:25].lower() == 'item_button_normal_color:':
s = line[25:].strip().split(',')
self.item_options['button_normal_color'] = (float(s[0])/255,
float(s[1])/255,
float(s[2])/255,
1)
options_set.append('item_button_normal_color:')
if line[0:23].lower() == 'item_button_down_color:':
s = line[23:].strip().split(',')
self.item_options['button_down_color'] = (float(s[0])/255,
float(s[1])/255,
float(s[2])/255,