boxespy/boxes/lids.py

# Copyright (C) 2013-2014 Florian Festi
#
#   This program is free software: you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation, either version 3 of the License, or
#   (at your option) any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with this program.  If not, see <http://www.gnu.org/licenses/>.

from boxes import edges, Boxes
import math

class LidSettings(edges.Settings):

    """Settings for the Lid
Values:
*absolute

 * style : "none" : type of lid to create
 * handle : "none" : type of handle

* relative (in multiples of thickness)

  * height : 4.0 : height of the brim (if any)
  * play : 0.1 : play when sliding the lid on (if applicable)
  * handle_height : 8.0 : height of the handle (if applicable)
    """

    absolute_params = {
        "style" : ("none", "flat", "chest", "overthetop", "ontop"),
        "handle" : ("none", "long"),
    }

    relative_params = {
        "height" : 4.0,
        "play" : 0.1,
        "handle_height" : 8.0,
    }


class Lid:

    def __init__(self, boxes, settings):
        self.boxes = boxes
        self.settings = settings

    def __getattr__(self, name):
        """Hack for using unalter code form Boxes class"""
        if hasattr(self.settings, name):
            return getattr(self.settings, name)
        return getattr(self.boxes, name)

    def __call__(self, x, y, edge=None):
        t = self.thickness
        style = self.settings.style
        height = self.height
        if style == "flat":
            self.rectangularWall(x, y, "eeee",
                                 callback=[self.handleCB(x, y)],
                                 move="up", label="lid bottom")
            self.rectangularWall(x, y, "EEEE",
                                 callback=[self.handleCB(x, y)],
                                 move="up", label="lid top")
        elif style == "chest":
            self.chestSide(x, move="right", label="lid right")
            self.chestSide(x, move="up", label="lid left")
            self.chestSide(x, move="left only", label="invisible")
            self.chestTop(x, y,
                          callback=[None, self.handleCB(x, 3*t)],
                           move="up", label="lid top")
        elif style in ("overthetop", "ontop"):
            x2 = x
            y2 = y
            b = {
                "Š" : "š",
                "S" : "š",
            }.get(edge, "e")
            if style == "overthetop":
                x2 += 2*t + self.play
                y2 += 2*t + self.play
            self.rectangularWall(x2, y2, "ffff",
                                 callback=[self.handleCB(x2, y2)],
                                 move="up")
            self.rectangularWall(x2, self.height, b +"FFF",
                                 ignore_widths=[1, 2, 5, 6], move="up")
            self.rectangularWall(x2, self.height, b + "FFF",
                                 ignore_widths=[1, 2, 5, 6], move="up")
            self.rectangularWall(y2, self.height, b + "fFf",
                                 ignore_widths=[1, 2, 5, 6], move="up")
            self.rectangularWall(y2, self.height, b + "fFf",
                                 ignore_widths=[1, 2, 5, 6], move="up")
            if style ==	"ontop":
                self.rectangularWall(y - self.play, height + 2*t, "eeee",
                                     move="up")
                self.rectangularWall(y - self.play, height + 2*t, "eeee",
                                     move="up")
        else:
            return False

        self.handleParts(x, y)
        return True

    ######################################################################
    ### Handles
    ######################################################################

    def handleCB(self, x, y):
        t = self.thickness
        def cb():
            if self.handle == "long":
                self.rectangularHole(x/2, y/2, x/2, t)

        return cb

    def longHandle(self, x, y, move=None):
        t = self.settings.thickness
        hh = self.handle_height
        tw, th = x/2 + 2*t, self.handle_height + 2*t

        r = min(hh/2, x/4)

        if self.move(tw, th, move, True):
            return

        self.moveTo(0.5*t)

        poly = [(90, t/2), t/2, 90, t, -90, t + hh - r, (90, r)]

        poly = [x/2+t] + poly + [x/2 - 2*r] + list(reversed(poly))
        self.polyline(*poly)

        self.move(tw, th, move)

    def handleParts(self, x, y):
        if self.handle == "long":
            self.longHandle(x, y, "up")

    ######################################################################
    ### Chest Lid
    ######################################################################

    def getChestR(self, x, angle=0):
        t = self.thickness
        d = x - 2*math.sin(math.radians(angle)) * (3*t)

        r = d / 2.0 / math.cos(math.radians(angle))
        return r

    def chestSide(self, x, angle=0, move="", label=""):
        if "a" not in self.edges:
            s = edges.FingerJointSettings(self.thickness, True,
                                          finger=1.0, space=1.0)
            s.edgeObjects(self, "aA.")

        t = self.thickness
        r = self.getChestR(x, angle)
        if self.move(x+2*t, 0.5*x+3*t, move, True, label=label):
            return

        self.moveTo(t, 0)
        self.edge(x)
        self.corner(90+angle)
        self.edges["a"](3*t)
        self.corner(180-2*angle, r)
        self.edges["a"](3*t)
        self.corner(90+angle)

        self.move(x+2*t, 0.5*x+3*t, move, False, label=label)

    def chestTop(self, x, y, angle=0, callback=None, move=None, label=""):
        if "a" not in self.edges:
            s = edges.FingerJointSettings(self.thickness, True,
                                          finger=1.0, space=1.0)
            s.edgeObjects(self, "aA.")

        t = self.thickness
        l = math.radians(180-2*angle) * self.getChestR(x, angle)

        tw = l + 6*t
        th = y+2*t

        if self.move(tw, th, move, True, label=label):
            return

        self.cc(callback, 0, self.edges["A"].startwidth()+self.burn)
        self.edges["A"](3*t)
        self.edges["X"](l, y+2*t)
        self.edges["A"](3*t)
        self.corner(90)
        self.cc(callback, 1)
        self.edge(y+2*t)
        self.corner(90)
        self.cc(callback, 2, self.edges["A"].startwidth()+self.burn)
        self.edges["A"](3*t)
        self.edge(l)
        self.edges["A"](3*t)
        self.corner(90)
        self.cc(callback, 3)
        self.edge(y+2*t)
        self.corner(90)

        self.move(tw, th, move, label=label)

class _TopEdge(Boxes):

    def addTopEdgeSettings(self, fingerjoint={}, stackable={}, hinge={},
                           cabinethinge={}, slideonlid={}, click={},
                           roundedtriangle={}, mounting={}, handle={}):
        self.addSettingsArgs(edges.FingerJointSettings, **fingerjoint)
        self.addSettingsArgs(edges.StackableSettings, **stackable)
        self.addSettingsArgs(edges.HingeSettings, **hinge)
        self.addSettingsArgs(edges.CabinetHingeSettings, **cabinethinge)
        self.addSettingsArgs(edges.SlideOnLidSettings, **slideonlid)
        self.addSettingsArgs(edges.ClickSettings, **click)
        self.addSettingsArgs(edges.RoundedTriangleEdgeSettings, **roundedtriangle)
        self.addSettingsArgs(edges.MountingSettings, **mounting)
        self.addSettingsArgs(edges.HandleEdgeSettings, **handle)

    def topEdges(self, top_edge):
        """Return top edges belonging to given main edge type
        as a list containing edge for left, back, right, front.
        """
        tl = tb = tr = tf = self.edges.get(top_edge, self.edges["e"])

        if tl.char == "i":
            tb = tf = "e"
            tl = "j"
        elif tl.char == "k":
            tl = tr = "e"
        elif tl.char == "L":
            tl = "M"
            tf = "e"
            tr = "N"
        elif tl.char == "v":
            tl = tr = tf = "e"
        elif tl.char == "t":
            tf = tb = "e"
        elif tl.char == "G":
            tl = tb = tr = tf = "e"
            if self.edges["G"].settings.side == edges.MountingSettings.PARAM_LEFT:
                tl = "G"
            elif self.edges["G"].settings.side == edges.MountingSettings.PARAM_RIGHT:
                tr = "G"
            elif self.edges["G"].settings.side == edges.MountingSettings.PARAM_FRONT:
                tf = "G"
            else: #PARAM_BACK
                tb = "G"
        elif tl.char == "y":
            tl = tb = tr = tf = "e"
            if self.edges["y"].settings.on_sides == True:
                tl = tr = "y"
            else:
                tb = tf = "y"
        elif tl.char == "Y":
            tl = tb = tr = tf = "h"
            if self.edges["Y"].settings.on_sides == True:
                tl = tr = "Y"
            else:
                tb = tf = "Y"
        return [tl, tb, tr, tf]

    def drawLid(self, x, y, top_edge, bedBolts=[None, None]):
        d2, d3 = bedBolts
        if top_edge == "c":
            self.rectangularWall(x, y, "CCCC", bedBolts=[d2, d3, d2, d3], move="up", label="top")
        elif top_edge == "f":
            self.rectangularWall(x, y, "FFFF", move="up", label="top")
        elif top_edge in "FhŠY":
            self.rectangularWall(x, y, "ffff", move="up", label="top")
        elif top_edge == "L":
            self.rectangularWall(x, y, "Enlm", move="up", label="lid top")
        elif top_edge == "i":
            self.rectangularWall(x, y, "EJeI", move="up", label="lid top")
        elif top_edge == "k":
            outset =  self.edges["k"].settings.outset
            self.edges["k"].settings.setValues(self.thickness, outset=True)
            lx = x/2.0-0.1*self.thickness
            self.edges['k'].settings.setValues(self.thickness, grip_length=5)
            self.rectangularWall(lx, y, "IeJe", move="right", label="lid top left")
            self.rectangularWall(lx, y, "IeJe", move="mirror up", label="lid top right")
            self.rectangularWall(lx, y, "IeJe", move="left only", label="invisible")
            self.edges["k"].settings.setValues(self.thickness, outset=outset)
        elif top_edge == "v":
            self.rectangularWall(x, y, "VEEE", move="up", label="lid top")
            self.edges["v"].parts(move="up")
        else:
            return False
        return True