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reordering of functions

This commit is contained in:
Florian Streibelt 2011-10-15 04:19:49 +02:00
parent 5684b46001
commit f5f55eff84
1 changed files with 43 additions and 38 deletions
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81
client-barcode/freitagskasse.py
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@ -41,6 +41,22 @@ scroll_line2 = None
lock = allocate_lock() lock = allocate_lock()
#Helper-Function, scrolls text in a specific line.
def display_scroll_text(line,text):
global scroll_line1,scroll_line2
global offset_line1,offset_line2
lock.acquire()
if (line==1): #clear the line on invocation:
send_display("\x1f\x24\x01%c\x18" % chr(line) )
scroll_line1 = text
offset_line1=0
if (line==2): #clear the line on invocation:
send_display("\x1f\x24\x01%c\x18" % chr(line) )
scroll_line2 = text
offset_line2=0
lock.release()
def display_handle_scroll(line,text,offset): def display_handle_scroll(line,text,offset):
if (text): if (text):
send_display("\x1f\x24\x01%c%s" % (chr(line),text[offset:(20+offset)])) send_display("\x1f\x24\x01%c%s" % (chr(line),text[offset:(20+offset)]))
@ -53,44 +69,6 @@ def display_handle_scroll(line,text,offset):
offset=0 #reset offset offset=0 #reset offset
return offset return offset
def display_scroll_text(line,text):
global scroll_line1,scroll_line2
global offset_line1,offset_line2
offset_line1=0
offset_line2=0
lock.acquire()
if (line==1): #clear the line on invocation:
send_display("\x1f\x24\x01%c\x18" % chr(line) )
scroll_line1 = text
if (line==2): #clear the line on invocation:
send_display("\x1f\x24\x01%c\x18" % chr(line) )
scroll_line2 = text
lock.release()
def display_screen(title,message):
global scroll_line1,scroll_line2
global offset_line1,offset_line2
offset_line1=0
offset_line2=0
if (len(title)<21):
scroll_line1=None
send_display("\x1f\x24\x01%c\x18%s" % (chr(1),'\xdb'*20) )
if (len(title)<20):
pos=1+(20-len(title))/2
else:
pos=1
send_display("\x1f\x24%c%c%s" % (chr(pos),chr(1),title) )
else:
display_scroll_text(1,title)
if (len(message)<21):
scroll_line2=None
send_display("\x1f\x24%c%c\x18%s" % (chr(1),chr(2),message) )
else:
display_scroll_text(2,message)
def display_thread(x): def display_thread(x):
global scroll_line1,scroll_line2 global scroll_line1,scroll_line2
global offset_line1,offset_line2 global offset_line1,offset_line2
@ -126,6 +104,33 @@ def send_display(s):
pass pass
return return
#Front-End Funtion to display a Screen
# with heading
def display_screen(title,message):
global scroll_line1,scroll_line2
global offset_line1,offset_line2
offset_line1=0
offset_line2=0
if (len(title)<21):
scroll_line1=None
send_display("\x1f\x24\x01%c\x18%s" % (chr(1),'\xdb'*20) )
if (len(title)<20):
pos=1+(20-len(title))/2
else:
pos=1
send_display("\x1f\x24%c%c%s" % (chr(pos),chr(1),title) )
else:
display_scroll_text(1,title)
if (len(message)<21):
scroll_line2=None
send_display("\x1f\x24%c%c\x18%s" % (chr(1),chr(2),message) )
else:
display_scroll_text(2,message)
#Front-End function to send data to the display.
def print_display(s): def print_display(s):
global scroll_line1,scroll_line2 global scroll_line1,scroll_line2
global offset_line1,offset_line2 global offset_line1,offset_line2