def __init__(self, component, otype="svg", osize="Letter", title="",
projno="", drgno="", qty="", customer="", material="",
bonding="", finish="", servicetemp="", checkedby=""):
"""
Initializes a DrawingPage instance.
Arguments:
component -- the component to draw
otype -- format of desired output, "pdf", or "svg".
osize -- desired output size, "A4" or "Letter"
title, projno, drgno, qty, customer, material, bonding,
finish, servicetemp, checkby -- miscellaneous information
"""
# Page dimensions and properties
self.client = "Clientname Limited"
self.page_margin = 50
self.page_inner_margin = 10
self.page_inner_margin_x = 0
self.page_inner_margin_y = 0
self.page_infoboxheight = 100
self.page_infoboxspacing = 5
self.page_line_width = 0.5
self.line_color = (0, 0, 0)
self.scale_p = Point(0, 0)
self.output_type = otype
self.component = component
self.text = {"info": TextInfo(face="Arial", size=8,
padding=3, color=(0, 0, 0)),
"copyright": TextInfo(face="Arial", size=8,
padding=3, color=(0.757, 0, 0.702)),
"title": TextInfo(face="Arial", size=10,
padding=3, color=(0.0, 0.0, 0.4)),
"client": TextInfo(face="Arial", bold=True, size=12,
padding=3, color=(0.757, 0, 0.702)),
"notice": TextInfo(face="Arial", size=10,
padding=3, color=(0.0, 0.0, 0.0))}
# Set page dimensions in points
if osize == "A4":
self.page_width = 596
self.page_height = 843
elif osize == "Letter":
self.page_width = 612
self.page_height = 792
# Drawing information
now = datetime.datetime.now()
date_label = "%d/%d/%d" % (now.day, now.month, now.year)
self.drg_info = {"title": LabeledValue("Title", title),
"cust": LabeledValue("Customer", customer),
"projno": LabeledValue("Proj. No.", projno),
"drgno": LabeledValue("DRG No.", drgno),
"qty": LabeledValue("Qty", "%d off" % (qty)),
"mat": LabeledValue("Material", material),
"bond": LabeledValue("Bonding sys.", bonding),
"finish": LabeledValue("Finish", finish),
"svctemp": LabeledValue("Svc. temp.", servicetemp),
"date": LabeledValue("Date", date_label),
"scale": LabeledValue("Scale", ""),
"drwnby": LabeledValue("Drawn by", "JobCalc v1.0"),
"chkby": LabeledValue("Checked by", checkedby)}
class DrawingPage:
"""
Drawing page class, provides a page to frame the drawn component.
"""
def __init__(self, component, otype="svg", osize="Letter", title="",
projno="", drgno="", qty="", customer="", material="",
bonding="", finish="", servicetemp="", checkedby=""):
"""
Initializes a DrawingPage instance.
Arguments:
component -- the component to draw
otype -- format of desired output, "pdf", or "svg".
osize -- desired output size, "A4" or "Letter"
title, projno, drgno, qty, customer, material, bonding,
finish, servicetemp, checkby -- miscellaneous information
"""
# Page dimensions and properties
self.client = "Clientname Limited"
self.page_margin = 50
self.page_inner_margin = 10
self.page_inner_margin_x = 0
self.page_inner_margin_y = 0
self.page_infoboxheight = 100
self.page_infoboxspacing = 5
self.page_line_width = 0.5
self.line_color = (0, 0, 0)
self.scale_p = Point(0, 0)
self.output_type = otype
self.component = component
self.text = {"info": TextInfo(face="Arial", size=8,
padding=3, color=(0, 0, 0)),
"copyright": TextInfo(face="Arial", size=8,
padding=3, color=(0.757, 0, 0.702)),
"title": TextInfo(face="Arial", size=10,
padding=3, color=(0.0, 0.0, 0.4)),
"client": TextInfo(face="Arial", bold=True, size=12,
padding=3, color=(0.757, 0, 0.702)),
"notice": TextInfo(face="Arial", size=10,
padding=3, color=(0.0, 0.0, 0.0))}
# Set page dimensions in points
if osize == "A4":
self.page_width = 596
self.page_height = 843
elif osize == "Letter":
self.page_width = 612
self.page_height = 792
# Drawing information
now = datetime.datetime.now()
date_label = "%d/%d/%d" % (now.day, now.month, now.year)
self.drg_info = {"title": LabeledValue("Title", title),
"cust": LabeledValue("Customer", customer),
"projno": LabeledValue("Proj. No.", projno),
"drgno": LabeledValue("DRG No.", drgno),
"qty": LabeledValue("Qty", "%d off" % (qty)),
"mat": LabeledValue("Material", material),
"bond": LabeledValue("Bonding sys.", bonding),
"finish": LabeledValue("Finish", finish),
"svctemp": LabeledValue("Svc. temp.", servicetemp),
"date": LabeledValue("Date", date_label),
"scale": LabeledValue("Scale", ""),
"drwnby": LabeledValue("Drawn by", "JobCalc v1.0"),
"chkby": LabeledValue("Checked by", checkedby)}
def draw(self, outfile):
"""
Master function for creating the drawing.
This is the only public drawing function.
"""
if self.output_type == "pdf":
surface = cairo.PDFSurface(outfile,
self.page_width, self.page_height)
elif self.output_type == "svg":
surface = cairo.SVGSurface(outfile,
self.page_width, self.page_height)
elif self.output_type == "png":
surface = cairo.ImageSurface(cairo.FORMAT_ARGB32,
self.page_width, self.page_height)
self.ctx = cairo.Context(surface)
if self.output_type == "png":
self.ctx.save()
self.ctx.set_source_rgb(1.0, 1.0, 1.0)
self.ctx.paint()
self.ctx.restore()
self.draw_base_page()
self.draw_drawing_info()
self.draw_component()
if self.output_type == "pdf" or self.output_type == "svg":
surface.show_page()
elif self.output_type == "png":
imgfile = tempfile.TemporaryFile()
surface.write_to_png(imgfile)
imgfile.seek(0)
outfile.write(imgfile.read())
imgfile.close()
def draw_base_page(self):
"""
Draws the base page.
"""
pw = self.page_width - self.page_margin * 2
ph = self.page_height - self.page_margin * 2
self.ctx.save()
self.ctx.translate(self.page_margin, self.page_margin)
self.ctx.set_line_width(self.page_line_width)
self.ctx.set_source_rgb(*self.line_color)
# Draw main margins
self.ctx.rectangle(0, 0, pw, ph)
self.ctx.stroke()
# Draw dimension information and bounding box
# pylint: disable=W0612
(bw, bh, fps) = draw_text_box(ctx=self.ctx, topright=Point(pw, 0),
labels=["ALL DIMENSIONS ARE IN mm"],
textinfo=self.text["notice"], noborder=True)
# pylint: enable=W0612
self.ctx.move_to(pw - bw, 0)
self.ctx.line_to(pw - bw, bh)
self.ctx.line_to(pw, bh)
self.ctx.stroke()
self.page_inner_margin_y += bh
self.ctx.restore()
def draw_drawing_info(self):
"""
Draws the information boxes.
"""
pw = self.page_width - self.page_margin * 2
ph = self.page_height - self.page_margin * 2
ibs = self.page_infoboxspacing
self.ctx.save()
self.ctx.translate(self.page_margin, self.page_margin)
self.ctx.set_line_width(self.page_line_width)
self.ctx.set_source_rgb(*self.line_color)
# Calculate info box widths
self.ctx.select_font_face(*self.text["client"].face)
self.ctx.set_font_size(self.text["client"].size)
# pylint: disable=W0612
(bx, by, w, h, dx, dy) = self.ctx.text_extents(self.client)
# pylint: enable=W0612
cbw = w + self.text["client"].padding * 2
ibw = (pw - cbw - ibs * 5) / 3
# Draw main info boxes
x = ibs
y = ph - ibs
keys = [["cust", "projno", "drgno", "qty"],
["mat", "bond", "finish", "svctemp"],
["date", "scale", "drwnby", "chkby"]]
for k in keys:
labels, fields = zip(*[(self.drg_info[j].label,
self.drg_info[j].value) for j in k])
# pylint: disable=W0612
(bw, bh, fps) = draw_text_box(ctx=self.ctx, bottomleft=Point(x, y),
labels=labels, fields=fields,
textinfo=self.text["info"], width=ibw)
# pylint: enable=W0612
if k[1] == "scale":
self.scale_p = fps[1]
x += (ibw + ibs)
# Draw copyright box
x = ibs
y -= ibs + bh
width = ibw * 3 + ibs * 2
(bw, bh, fps) = draw_text_box(ctx=self.ctx, bottomleft=Point(x, y),
width=width,
labels=["Industrial copyright " + self.client],
textinfo=self.text["copyright"], center=True)
# Draw title box
y -= ibs + bh
(bw, bh, fps) = draw_text_box(ctx=self.ctx, bottomleft=Point(x, y),
width=width,
labels=[self.drg_info["title"].value],
textinfo=self.text["title"], center=True)
# Set info box height
self.page_infoboxheight = ph - (y - ibs - bh)
ibh = self.page_infoboxheight
# Draw Omegaslate box
self.ctx.select_font_face(*self.text["client"].face)
self.ctx.set_font_size(self.text["client"].size)
(bx, by, w, h, dx, dy) = self.ctx.text_extents(self.client)
x = pw - ibs - w - self.text["client"].padding
y = ph - ibh + ibs + self.text["client"].padding + h
self.ctx.move_to(x, y)
self.ctx.set_source_rgb(*self.text["client"].color)
self.ctx.show_text(self.client)
self.ctx.set_source_rgb(*self.line_color)
self.ctx.rectangle(x - self.text["client"].padding,
y - h - self.text["client"].padding, cbw, ibh - ibs * 2)
self.ctx.stroke()
olabs = ["Address 1",
"Address 2",
"Company Tag Line",
"Telephone and Fax"]
self.ctx.select_font_face(*self.text["info"].face)
self.ctx.set_font_size(self.text["info"].size)
self.ctx.set_source_rgb(*self.text["info"].color)
for row, lstr in zip(range(len(olabs)), olabs):
if row == 2 or row == 3:
mult = 2.5
else:
mult = 1
y += (h + self.text["client"].padding) * mult
(bx, by, w, h, dx, dy) = self.ctx.text_extents(lstr)
x = pw - ibs - (cbw / 2) - (w / 2)
self.ctx.move_to(x, y)
self.ctx.show_text(lstr)
# Draw infobox divider
self.ctx.set_source_rgb(*self.line_color)
self.ctx.move_to(0, ph - ibh)
self.ctx.line_to(pw, ph - ibh)
self.ctx.stroke()
self.ctx.restore()
def draw_component(self):
"""
Sets the drawing area and calls the component's draw method.
"""
m = self.page_margin + self.page_inner_margin
x = m + self.page_inner_margin_x
y = m + self.page_inner_margin_y
w = self.page_width - m * 2
h = self.page_height - self.page_infoboxheight - y * 2
self.ctx.save()
self.ctx.translate(x, y)
p_scale = self.component.draw(self.ctx, w, h)
self.ctx.restore()
# Format and show drawing scale
#
# Each pixel in device space is one point, of which there are
# 72 in an inch. Nominal measurements are in millimeters, so
# to get the scale convert millimeters to points -- 1mm is
# 72/25.4 points -- and multiply by 100 to avoid showing a
# ratio containing decimals.
p_scale = (7200.0 / 25.4) / p_scale
self.drg_info["scale"].value = "100:%d" % (round(p_scale))
self.ctx.save()
self.ctx.set_line_width(self.page_line_width)
self.ctx.set_source_rgb(*self.line_color)
self.ctx.select_font_face(*self.text["info"].face)
self.ctx.set_font_size(self.text["info"].size)
self.ctx.move_to(*self.scale_p.t())
self.ctx.show_text(self.drg_info["scale"].value)
self.ctx.restore()
