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display: add M117 "show message" support 

When M117 is followed by an empty string, the display will reset to
Klipper's default.

Internal modules may look up the display and directly call
set_message(), with a timeout if desired.

Signed-off-by: Eric Callahan <arksine.code@gmail.com>
This commit is contained in:
Arksine 2018-06-25 22:15:00 -04:00 committed by Kevin O'Connor
parent 8a0c9a457a
commit d350e2c617
1 changed files with 42 additions and 2 deletions
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44
klippy/extras/display.py
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@ -474,7 +474,10 @@ class PrinterLCD:
self.heater_bed = self.printer.lookup_object('heater_bed', None)
self.prg_time = .0
self.progress = None
self.msg_time = None
self.message = None
self.gcode.register_command('M73', self.cmd_M73)
self.gcode.register_command('M117', self.cmd_M117, desc=self.cmd_M117_help)
# Load glyphs
self.load_glyph(self.BED1_GLYPH, heat1_icon)
self.load_glyph(self.BED2_GLYPH, heat2_icon)
@ -568,7 +571,17 @@ class PrinterLCD:
self.draw_percent(9, 2, 4, progress)
lcd_chip.write_text(14, 2, lcd_chip.char_clock)
self.draw_time(15, 2, toolhead_info['printing_time'])
self.draw_status(0, 3, gcode_info, toolhead_info)
# If there is a message set by M117, display it instead of toolhead info
if self.message:
lcd_chip.write_text(0, 3, self.message)
if self.msg_time:
# Screen updates every .5 seconds
self.msg_time -= .5
if self.msg_time <= 0.:
self.message = None
self.msg_time = None
else:
self.draw_status(0, 3, gcode_info, toolhead_info)
def screen_update_st7920(self, eventtime):
# Heaters
if self.extruder0 is not None:
@ -631,7 +644,17 @@ class PrinterLCD:
else:
offset = 1 if printing_time < 100 * 60 * 60 else 0
self.draw_time(10 + offset, 2, printing_time)
self.draw_status(0, 3, gcode_info, toolhead_info)
# if there is a message set by M117, display it instead of toolhaed info
if self.message:
self.lcd_chip.write_text(0, 3, self.message)
if self.msg_time:
# Screen updates every .5 seconds
self.msg_time -= .5
if self.msg_time <= 0.:
self.message = None
self.msg_time = None
else:
self.draw_status(0, 3, gcode_info, toolhead_info)
# Screen update helpers
def draw_heater(self, x, y, info):
temperature, target = info['temperature'], info['target']
@ -655,10 +678,27 @@ class PrinterLCD:
pos = self.toolhead.get_position()
status = "X%-4.0fY%-4.0fZ%-5.2f" % (pos[0], pos[1], pos[2])
self.lcd_chip.write_text(x, y, status)
def set_message(self, msg, msg_time=None):
self.message = msg
self.msg_time = msg_time
# print progress: M73 P<percent>
def cmd_M73(self, params):
self.progress = self.gcode.get_int('P', params, minval=0, maxval=100)
self.prg_time = M73_TIMEOUT
cmd_M117_help = "Show Message on Display"
def cmd_M117(self, params):
if '#original' in params:
msg = params['#original']
if not msg.startswith('M117'):
# Parse out additional info if M117 recd during a print
start = msg.find('M117')
end = msg.rfind('*')
msg = msg[start:end]
if len(msg) > 5:
msg = msg[5:]
self.set_message(msg)
else:
self.set_message(None)
def load_config(config):
return PrinterLCD(config)