"""Generator for keypads with mechanical switches."""
from copy import deepcopy
from boxes import Boxes, boolarg
from boxes.edges import FingerJointSettings
from .keyboard import Keyboard
[docs]
class Keypad(Boxes, Keyboard):
"""Generator for keypads with mechanical switches."""
description = "Note that top layers use a different material thickness according to the top1_thickness and top2_thickness (if enabled)."
ui_group = 'Box'
btn_size = 15.6
space_between_btn = 4
box_padding = 10
triangle = 25.0
def __init__(self) -> None:
super().__init__()
self.argparser.add_argument(
'--h', action='store', type=int, default=30,
help='height of the box'
)
self.argparser.add_argument(
'--top1_thickness', action='store', type=float, default=1.5,
help=('thickness of the button hold layer, cherry like switches '
'need 1.5mm or smaller to snap in')
)
self.argparser.add_argument(
'--top2_enable', action='store', type=boolarg, default=False,
help=('enables another top layer that can hold CPG151101S11 '
'hotswap sockets')
)
self.argparser.add_argument(
'--top2_thickness', action='store', type=float, default=1.5,
help=('thickness of the hotplug layer, CPG151101S11 hotswap '
'sockets need 1.2mm to 1.5mm')
)
# Add parameter common with other keyboard projects
self.add_common_keyboard_parameters(
# Hotswap already depends on top2_enable setting, a second parameter
# for it would be useless
add_hotswap_parameter=False,
# By default, 3 columns of 4 rows
default_columns_definition="4x3"
)
self.addSettingsArgs(FingerJointSettings, surroundingspaces=1)
def _get_x_y(self):
"""Gets the keypad's size based on the number of buttons."""
spacing = self.btn_size + self.space_between_btn
border = 2*self.box_padding - self.space_between_btn
x = len(self.columns_definition) * spacing + border
y = max(offset + keys * spacing for (offset, keys) in self.columns_definition) + border
return x, y
def render(self):
"""Renders the keypad."""
# deeper edge for top to add multiple layers
deep_edge = deepcopy(self.edges['f'].settings)
deep_edge.thickness = self.thickness + self.top1_thickness
if self.top2_enable:
deep_edge.thickness += self.top2_thickness
deep_edge.edgeObjects(self, 'gGH', True)
d1, d2 = 2., 3.
x, y = self._get_x_y()
h = self.h
# box sides
self.rectangularWall(x, h, "GFEF", callback=[self.wallx_cb], move="right")
self.rectangularWall(y, h, "GfEf", callback=[self.wally_cb], move="up")
self.rectangularWall(y, h, "GfEf", callback=[self.wally_cb])
self.rectangularWall(x, h, "GFEF", callback=[self.wallx_cb], move="left up")
# keypad lids
self.rectangularWall(x, y, "ffff", callback=self.to_grid_callback(self.support_hole), move="right")
self.rectangularWall(x, y, "ffff", callback=self.to_grid_callback(self.key_hole), move="up")
if self.top2_enable:
self.rectangularWall(x, y, "ffff", callback=self.to_grid_callback(self.hotplug))
# screwable
tr = self.triangle
trh = tr / 3
self.rectangularWall(
x, y,
callback=[lambda: self.hole(trh, trh, d=d2)] * 4,
move='left up'
)
self.rectangularTriangle(
tr, tr, "ffe", num=4,
callback=[None, lambda: self.hole(trh, trh, d=d1)]
)
def to_grid_callback(self, inner_callback):
def callback():
# move to first key center
key_margin = self.box_padding + self.btn_size / 2
self.moveTo(key_margin, key_margin)
self.apply_callback_on_columns(
inner_callback, self.columns_definition, self.btn_size + self.space_between_btn
)
return [callback]
def hotplug(self):
"""Callback for the key stabilizers."""
self.pcb_holes(
with_pcb_mount=self.pcb_mount_enable,
with_diode=self.diode_enable,
with_led=self.led_enable,
)
def support_hole(self):
self.configured_plate_cutout(support=True)
def key_hole(self):
self.configured_plate_cutout()
# stolen form electronics-box
def wallx_cb(self):
"""Callback for triangle holes on x-side."""
x, _ = self._get_x_y()
t = self.thickness
self.fingerHolesAt(0, self.h - 1.5 * t, self.triangle, 0)
self.fingerHolesAt(x, self.h - 1.5 * t, self.triangle, 180)
# stolen form electronics-box
def wally_cb(self):
"""Callback for triangle holes on y-side."""
_, y = self._get_x_y()
t = self.thickness
self.fingerHolesAt(0, self.h - 1.5 * t, self.triangle, 0)
self.fingerHolesAt(y, self.h - 1.5 * t, self.triangle, 180)
