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