screens.py

# The following lists are for my colour standards.
red = (255,0,0)
green = (106,255,69)
blue = (99,157,255)
yellow = (255,221,5)
black = (0,0,0)
white = (255,255,255)

## The following lists/objects are for UI elements.
#titleFont = "babs.otf"
#blueInsignia = pygame.image.load('/assets/insigniablue.png')
#backplane = pygame.image.load('/assets/background.png')
#backgraph = pygame.image.load('/assets/backgraph.png')
#slider = pygame.image.load('/assets/slider.png')
#sliderb = pygame.image.load('/assets/slider2.png')




# the following function plots the environment sensors to an onscreen graph
def graphScreen(surface,humidGraph,tempGraph,pressGraph,moire,tock,graphinit,buttons,csvfile,rot):
	status = "graphgo"   
	drawinterval = 1 #64
	senseinterval = 10
	#337
	
	# Because the graph screen is slow to update it needs to pop a reading onto screen as soon as it is initiated I draw a value once and wait for the interval to lapse for the next draw. Once the interval has lapsed pop another value on screen.

	moire.animate()   
	
	if (graphinit.get() == 0) or (tock.timelapsed() >= drawinterval):  
		#Sets a black screen ready for our UI elements      
		surface.fill(black)

		#draws Background gridplane
		graphback = Image()
		graphback.update(backgraph, 0, 0)
		graphback.draw(surface) 
	
		#instantiates 3 labels for our readout
		templabel = Label()
		humidlabel = Label()
		presslabel = Label()
		intervallabel = Label()
		intervallabelshadow = Label()
		
		
		slider1 = Image()
		slider2 = Image()
		slider3 = Image()


		#gets our data
		senseData = sensorget()
		csvfile.logvalues(senseData)
		
		#parses dictionary of data from sensor/weather.
	
		#converts humid data to float
		humidData = float(senseData['humidity'])
		#scales the data to the limits of our screen
		humidgraph = translate(humidData, 0, 100, 204, 17)
		#grabs a simple 61 wide tuple for our values
		humidbuffer = humidGraph.grablist()

		#puts a new sensor value at the end 
		humidbuffer.append(humidgraph)
		#pop the oldest value off
		humidbuffer.pop(0)
	
		#preps the list by adding the X coordinate to every sensor value
		humidcords = humidGraph.graphprep(humidbuffer)
		
		#repeat for each sensor

		tempData = float(senseData['temp'])
		tempgraph = translate(tempData, -40, 120, 204, 17)
		tempbuffer = tempGraph.grablist()
		tempbuffer.append(tempgraph)
		tempbuffer.pop(0)
		tempcords = tempGraph.graphprep(tempbuffer)
	
		pressData = float(senseData['pressure'])
		pressgraph = translate(pressData, 260, 1260, 204, 17)
		pressbuffer = pressGraph.grablist()
		pressbuffer.append(pressgraph)
		pressbuffer.pop(0)
		presscords = pressGraph.graphprep(pressbuffer)
		
		tempcontent = str(int(tempData))
		templabel.update(tempcontent + "\xb0" + " c",30,35,205,titleFont,red)
		presscontent = str(int(pressData))
		presslabel.update(presscontent + " hpa",30,114,205,titleFont,yellow)
		humidcontent = str(int(humidData))
		humidlabel.update(humidcontent + " %",30,246,205,titleFont,green)
		#templabel.update(tempData + "\xb0",16,15,212,titleFont,yellow)
		
		setting = str(float(drawinterval))
		intervaltext = (setting + ' sec')
		interx= (22)
		intery= (21)
	 # intervallabel.update("~"+setting + " Hrs",30,22,167,titleFont,white)
		#intervallabelshadow.update(setting + " Hrs",30,24,169,titleFont,(100,100,100))
		intervallabel.update(intervaltext,30,interx,intery,titleFont,white)
		intervallabelshadow.update(intervaltext, 30, interx + 2, intery + 2 ,titleFont,(100,100,100))
		
		tempslide = translate(senseData['temp'], -40, 120, 194, 7)
		pressslide = translate(senseData['pressure'], 260, 1260, 194, 7)
		humidslide = translate(senseData['humidity'], 0, 100, 194, 7)
		
		slider1.update(sliderb, 283, tempslide)
		slider2.update(sliderb, 283, pressslide)  
		slider3.update(sliderb, 283, humidslide)

			
		#draw the lines

		pygame.draw.lines(surface, red, False, tempcords, 3)
		pygame.draw.lines(surface, green, False, humidcords, 3)
		pygame.draw.lines(surface, yellow, False, presscords, 3)
		
		templabel.draw(surface)
		presslabel.draw(surface)
		humidlabel.draw(surface)
		intervallabelshadow.draw(surface)          
		intervallabel.draw(surface)

		#draws UI to frame buffer


		slider1.draw(surface)
		slider2.draw(surface)
		slider3.draw(surface)
		
		if (rot.read() == True):
			surface.blit(pygame.transform.rotate(surface, 180), (0, 0))
		
		pygame.display.flip()
		
		if (graphinit.get() == 0):
			graphinit.logstart()
		
		if (tock.timelapsed() >= 10):
			tock.logtime()

	#status = "graphgo"    
	#returns state to main loop
	
	status = butswitch(status,graphinit,moire,rot,buttons)
	
	#button_readings = buttons.read()

	
	
	#returns state to main loop
	return status