forked from josch/plakativ
2465 lines
95 KiB
Python
Executable file
2465 lines
95 KiB
Python
Executable file
#!/usr/bin/env python3
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# -*- coding: utf-8 -*-
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#
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# Plakativ allows to create posters bigger than the page size one's own printer
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# is able to print on by enlarging the input PDF, cutting it into smaller
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# pieces and putting each of them onto a paper size that can be printed
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# normally. The result can then be glued together into a bigger poster.
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#
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# Copyright (C) 2019 - 2021 Johannes Schauer Marin Rodrigues <josch@mister-muffin.de>
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#
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# This program is free software: you can redistribute it and/or modify it under
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# the terms of the GNU General Public License version 3 as published by the
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# Free Software Foundation.
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from collections import OrderedDict
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import math
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import fitz
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import sys
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import argparse
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import os.path
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import platform
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from enum import Enum
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from io import BytesIO
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import logging
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have_img2pdf = True
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try:
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from PIL import Image
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# ignore PIL limit because this software is meant to create posters which
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# naturally can be very large in size
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Image.MAX_IMAGE_PIXELS = None
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import img2pdf
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except ImportError:
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have_img2pdf = False
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have_tkinter = True
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try:
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import tkinter
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import tkinter.filedialog
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import tkinter.messagebox
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except ImportError:
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have_tkinter = False
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class dummy:
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def __init__(self, *args, **kwargs):
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raise Exception("this functionality needs tkinter")
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tkinter = type("", (), {})()
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tkinter.Frame = dummy
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tkinter.Menubutton = dummy
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tkinter.LabelFrame = dummy
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VERSION = "0.5.2"
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PAGE_SIZES = OrderedDict(
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[
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("custom", (None, None)),
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("A0 (841 mm × 1189 mm)", (841, 1189)),
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("A1 (594 mm × 841 mm)", (594, 841)),
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("A2 (420 mm × 594 mm)", (420, 594)),
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("A3 (297 mm × 420 mm)", (297, 420)),
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("A4 (210 mm × 297 mm)", (210, 297)),
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("A5 (148 mm × 210 mm)", (148, 210)),
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("Letter (8.5 in × 11 in)", (215.9, 279.4)),
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("Legal (8.5 in × 14 in)", (215.9, 355.6)),
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("Tabloid (11 in × 17 in)", (279.4, 431.8)),
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]
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)
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papersizes = {
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"letter": "8.5inx11in",
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"a0": "841mmx1189mm",
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"a1": "594mmx841mm",
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"a2": "420mmx594mm",
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"a3": "297mmx420mm",
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"a4": "210mmx297mm",
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"a5": "148mmx210mm",
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"a6": "105mmx148mm",
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"legal": "8.5inx14in",
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"tabloid": "11inx17in",
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}
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papernames = {
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"letter": "Letter",
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"a0": "A0",
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"a1": "A1",
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"a2": "A2",
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"a3": "A3",
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"a4": "A4",
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"a5": "A5",
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"a6": "A6",
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"legal": "Legal",
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"tabloid": "Tabloid",
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}
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Unit = Enum("Unit", "pt cm mm inch")
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def mm_to_pt(length):
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return (72.0 * length) / 25.4
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def cm_to_mm(length):
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return length * 10.0
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def in_to_mm(length):
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return length * 25.4
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def pt_to_mm(length):
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return (25.4 * length) / 72.0
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class PlakativException(Exception):
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pass
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class PageNrOutOfRangeException(PlakativException):
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pass
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class LayoutNotComputedException(PlakativException):
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pass
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def simple_cover(n, m, x, y):
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pages_x_portrait = math.ceil(n / x)
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pages_y_portrait = math.ceil(m / y)
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pages_x_landscape = math.ceil(n / y)
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pages_y_landscape = math.ceil(m / x)
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if pages_x_portrait * pages_y_portrait <= pages_x_landscape * pages_y_landscape:
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pages_x = pages_x_portrait
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pages_y = pages_y_portrait
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portrait = True
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size = pages_x * x, pages_y * y
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else:
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pages_x = pages_x_landscape
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pages_y = pages_y_landscape
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portrait = False
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size = pages_x * y, pages_y * x
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config = list()
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for py in range(pages_y):
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for px in range(pages_x):
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if portrait:
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posx = px * x
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posy = py * y
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else:
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posx = px * y
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posy = py * x
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config.append((posx, posy, portrait))
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return config, size
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# the function complex_cover() is based on a heuristic proposed by
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# stackoverflow user m69 https://stackoverflow.com/users/4907604/m69 as a reply
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# to this question https://stackoverflow.com/questions/39306507
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#
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# In addition to computing the number of required rectangles it also returns
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# the position of the rectangles.
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#
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# In contrast to the solution by m69 this algorithm mandates at least one page
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# in each corner of the result. This means that the minimum solution size is
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# four. The advantage is, that the layout computed by this algorithm will
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# always be completely be inside the poster without leaving the poster area.
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# This in turn will make assembling the poster easier.
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#
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# This heuristic is not optimal. We always use a regular simple cover for the
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# hole in the center (if it exists) but there are situations where the hole in
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# the center should be covered by a complex cover instead. We do not consider
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# this improvement because:
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# - it's required very seldom
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# - it makes the resulting layout more complicated to glue together
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# - there is no proof that the improved version is optimal either
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# - we save some cpu cycles
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def complex_cover(n, m, x, y):
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# each tuple-entry represents one of the corners of the poster
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# upper-left, upper-right, lower-right, lower-left
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portrait = (
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(True, True, True, False),
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(True, True, False, False),
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(True, False, True, False),
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(True, False, False, True),
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(True, False, False, False),
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)
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X = lambda r, d: x if portrait[r][d] else y
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Y = lambda r, d: y if portrait[r][d] else x
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if x == y:
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# if page sizes are square, only one rotation has to be checked
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num_rotations = 1
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elif n == m:
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# if the poster size is a square, rotation 4 and 5 (which are itself
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# just rotations of rotations 2 and 1, respectively) do not need to be
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# checked
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num_rotations = 3
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else:
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num_rotations = 5
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minimum = math.ceil((n * m) / (x * y))
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config, _ = simple_cover(n, m, x, y)
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cover = len(config)
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if cover == minimum:
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return config
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for r in range(num_rotations):
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# w0 -> width of upper left corner pages
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for w0 in range(1, math.ceil(n / X(r, 0))):
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# w1 -> width of upper right corner pages
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w1 = math.ceil((n - w0 * X(r, 0)) / X(r, 1))
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if w1 < 0:
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w1 = 0
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# h0 -> height of upper left corner pages
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for h0 in range(1, math.ceil(m / Y(r, 0))):
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# h3 -> height of lower left corner pages
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h3 = math.ceil((m - h0 * Y(r, 0)) / Y(r, 3))
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if h3 < 0:
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h3 = 0
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# w2 -> width of lower right corner pages
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for w2 in range(1, math.ceil(n / X(r, 2))):
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# w3 -> width of lower left corner pages
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w3 = math.ceil((n - w2 * X(r, 2)) / X(r, 3))
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if w3 < 0:
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w3 = 0
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# h2 -> height of lower right corner pages
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for h2 in range(1, math.ceil(m / Y(r, 2))):
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# h1 -> height of upper right corner pages
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h1 = math.ceil((m - h2 * Y(r, 2)) / Y(r, 1))
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if h1 < 0:
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h1 = 0
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newconfig = list()
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# upper-left (w0,h0)
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for i in range(w0):
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for j in range(h0):
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newconfig.append(
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(i * X(r, 0), j * Y(r, 0), portrait[r][0])
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)
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# upper-right (w1,h1)
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for i in range(w1):
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for j in range(h1):
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newconfig.append(
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(
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n - w1 * X(r, 1) + i * X(r, 1),
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j * Y(r, 1),
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portrait[r][1],
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)
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)
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# lower-right (w2,h2)
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for i in range(w2):
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for j in range(h2):
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newconfig.append(
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(
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n - w2 * X(r, 2) + i * X(r, 2),
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m - h2 * Y(r, 2) + j * Y(r, 2),
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portrait[r][2],
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)
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)
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# lower-left (w3,h3)
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for i in range(w3):
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for j in range(h3):
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newconfig.append(
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(
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i * X(r, 3),
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m - h3 * Y(r, 3) + j * Y(r, 3),
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portrait[r][3],
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)
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)
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# if neither rectangle 0 overlaps with rectangle 2 nor
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# does rectangle 1 overlap with rectangle 3 in the center,
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# then a center cover has to be added
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X4 = n - w0 * X(r, 0) - w2 * X(r, 2)
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Y4 = m - h1 * Y(r, 1) - h3 * Y(r, 3)
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simple_config = []
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if X4 > 0 and Y4 > 0:
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simple_config, (sx, sy) = simple_cover(X4, Y4, x, y)
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# shift the results such that they are in the center
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for cx, cy, p in simple_config:
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newconfig.append(
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(
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w0 * X(r, 0) + (X4 - sx) / 2 + cx,
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h1 * Y(r, 1) + (Y4 - sy) / 2 + cy,
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p,
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)
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)
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else:
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X4 = n - w1 * X(r, 1) - w3 * X(r, 3)
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Y4 = m - h0 * Y(r, 0) - h2 * Y(r, 2)
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if X4 > 0 and Y4 > 0:
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simple_config, (sx, sy) = simple_cover(X4, Y4, x, y)
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# shift the results such that they are in the center
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for cx, cy, p in simple_config:
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newconfig.append(
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(
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w3 * X(r, 3) + (X4 - sx) / 2 + cx,
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h0 * Y(r, 0) + (Y4 - sy) / 2 + cy,
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p,
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)
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)
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total = len(newconfig)
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# shortcut to cut computation short in case a
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# solution with the minimal possible number of
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# pages is found
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if total == minimum:
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return newconfig
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if total < cover:
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cover = total
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config = newconfig
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return config
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class Plakativ:
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def __init__(self, doc=None, pagenr=0):
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self.doc = doc
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if self.doc is None:
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# either we didn't have img2pdf or opening the input with img2pdf
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# failed
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if hasattr(infile, "read"):
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self.doc = fitz.open(stream=infile, filetype="application/pdf")
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else:
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self.doc = fitz.open(filename=infile)
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self.pagenr = pagenr
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# set page number -- first page is 0
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def set_input_pagenr(self, pagenr):
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if pagenr < 0 or pagenr >= len(self.doc):
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raise PageNrOutOfRangeException(
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"%d is not between 0 and %d (inclusive)" % (pagenr, len(self.doc))
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)
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self.pagenr = pagenr
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def get_input_pagenums(self):
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return len(self.doc)
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def get_input_page_size(self):
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# since pymupdf 1.19.0 a warning will be issued if the deprecated names are used
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if hasattr(self.doc[self.pagenr], "get_displaylist"):
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gdl = self.doc[self.pagenr].get_displaylist
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else:
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gdl = self.doc[self.pagenr].getDisplayList
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rect = gdl().rect
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return (rect.width, rect.height)
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def get_image(self, zoom):
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mat_0 = fitz.Matrix(zoom, zoom)
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# since pymupdf 1.19.0 a warning will be issued if the deprecated names are used
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if hasattr(self.doc[self.pagenr], "get_displaylist"):
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gdl = self.doc[self.pagenr].get_displaylist()
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else:
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gdl = self.doc[self.pagenr].getDisplayList()
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if hasattr(gdl, "get_pixmap"):
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pix = gdl.get_pixmap(matrix=mat_0, alpha=False)
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else:
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pix = gdl.getPixmap(matrix=mat_0, alpha=False)
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if hasattr(pix, "tobytes"):
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# getImageData was deprecated in pymupdf 1.19.0
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return pix.tobytes("ppm")
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if hasattr(pix, "getImageData"):
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# the getImageData() function was only introduced in pymupdf 1.14.5
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return pix.getImageData("ppm")
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else:
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# this is essentially the same thing that the getImageData()
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# function does
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return pix._getImageData(2) # 2 stands for pgm/ppm/pbm
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def compute_layout(
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self,
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mode,
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postersize=None,
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mult=None,
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npages=None,
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pagesize=(210, 297),
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border=(0, 0, 0, 0),
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strategy="simple",
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):
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border_top, border_right, border_bottom, border_left = border
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self.layout = {
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"output_pagesize": pagesize,
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"border_top": border_top,
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"border_right": border_right,
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"border_bottom": border_bottom,
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"border_left": border_left,
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}
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printable_width = self.layout["output_pagesize"][0] - (
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border_left + border_right
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)
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printable_height = self.layout["output_pagesize"][1] - (
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border_top + border_bottom
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)
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# since pymupdf 1.19.0 a warning will be issued if the deprecated names are used
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if hasattr(self.doc[self.pagenr], "get_displaylist"):
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gdl = self.doc[self.pagenr].get_displaylist
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else:
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gdl = self.doc[self.pagenr].getDisplayList
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# this may fail with "RuntimeError: image is too wide"
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# from pdf_load_image_imp() in pdf-image.c from mupdf for sizes larger
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# than 1<<16 pixels:
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# https://bugs.ghostscript.com/show_bug.cgi?id=703839
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rect = gdl().rect
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inpage_width = pt_to_mm(rect.width)
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inpage_height = pt_to_mm(rect.height)
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if mode in ["size", "mult"]:
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if mode == "size":
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# fit the input page size into the selected postersize
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width_portrait = postersize[0]
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height_portrait = (width_portrait * inpage_height) / inpage_width
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if height_portrait > postersize[1]:
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height_portrait = postersize[1]
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width_portrait = (height_portrait * inpage_width) / inpage_height
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area_portrait = width_portrait * height_portrait
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width_landscape = postersize[1]
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height_landscape = (width_landscape * inpage_height) / inpage_width
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if height_landscape > postersize[0]:
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height_landscape = postersize[0]
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width_landscape = (height_landscape * inpage_width) / inpage_height
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area_landscape = width_landscape * height_landscape
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if area_portrait > area_landscape:
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poster_width, poster_height = width_portrait, height_portrait
|
||
else:
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||
poster_width, poster_height = width_landscape, height_landscape
|
||
elif mode == "mult":
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||
area = inpage_width * inpage_height * mult
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poster_width = math.sqrt(area * inpage_width / inpage_height)
|
||
poster_height = math.sqrt(area * inpage_height / inpage_width)
|
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else:
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raise Exception("unsupported mode: %s" % mode)
|
||
elif mode == "npages":
|
||
# stupid bruteforce algorithm to determine the largest printable
|
||
# postersize with N pages
|
||
best_area = 0
|
||
best = None
|
||
for x in range(1, npages + 1):
|
||
for y in range(1, npages + 1):
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if x * y > npages:
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continue
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width_portrait = x * printable_width
|
||
height_portrait = y * printable_height
|
||
|
||
poster_width = width_portrait
|
||
poster_height = (poster_width * inpage_height) / inpage_width
|
||
if poster_height > height_portrait:
|
||
poster_height = height_portrait
|
||
poster_width = (poster_height * inpage_width) / inpage_height
|
||
|
||
area_portrait = poster_width * poster_height
|
||
|
||
if area_portrait > best_area:
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||
best_area = area_portrait
|
||
best = (poster_width, poster_height)
|
||
|
||
width_landscape = x * printable_height
|
||
height_landscape = y * printable_width
|
||
|
||
poster_width = width_landscape
|
||
poster_height = (poster_width * inpage_height) / inpage_width
|
||
if poster_height > height_landscape:
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||
poster_height = height_landscape
|
||
poster_width = (poster_height * inpage_width) / inpage_height
|
||
|
||
area_landscape = poster_width * poster_height
|
||
|
||
if area_landscape > best_area:
|
||
best_area = area_landscape
|
||
best = (poster_width, poster_height)
|
||
|
||
poster_width, poster_height = best
|
||
|
||
if strategy == "complex":
|
||
# bisect poster sizes until we find the largest size that can
|
||
# be printed given the available number of pages
|
||
|
||
# we already know the maximum size for a solution utilizing the
|
||
# simple cover algorithm, so this will be the minimum known
|
||
# poster size
|
||
min_area_mult = (poster_width * poster_height) / (
|
||
inpage_width * inpage_height
|
||
)
|
||
# to avoid floating point errors later
|
||
min_area_mult *= 0.9999
|
||
min_area_npages = len(
|
||
complex_cover(
|
||
poster_width, poster_height, printable_width, printable_height
|
||
)
|
||
)
|
||
|
||
# the maximum possible size is a poster of the area created by
|
||
# multiplying the individual page areas by the maximum number
|
||
# of pages available
|
||
max_area_mult = (npages * printable_width * printable_height) / (
|
||
inpage_width * inpage_height
|
||
)
|
||
max_area_npages = len(
|
||
complex_cover(
|
||
math.sqrt(max_area_mult) * inpage_width,
|
||
math.sqrt(max_area_mult) * inpage_height,
|
||
printable_width,
|
||
printable_height,
|
||
)
|
||
)
|
||
|
||
while True:
|
||
if abs(min_area_mult - max_area_mult) < 0.001:
|
||
break
|
||
new_area_mult = (min_area_mult + max_area_mult) / 2
|
||
new_area_npages = len(
|
||
complex_cover(
|
||
math.sqrt(new_area_mult) * inpage_width,
|
||
math.sqrt(new_area_mult) * inpage_height,
|
||
printable_width,
|
||
printable_height,
|
||
)
|
||
)
|
||
if new_area_npages > npages:
|
||
max_area_mult = new_area_mult
|
||
else:
|
||
min_area_mult = new_area_mult
|
||
|
||
poster_width = inpage_width * math.sqrt(min_area_mult)
|
||
poster_height = inpage_height * math.sqrt(min_area_mult)
|
||
|
||
else:
|
||
raise Exception("unsupported mode: %s" % mode)
|
||
|
||
pages_x_portrait = math.ceil(poster_width / printable_width)
|
||
pages_y_portrait = math.ceil(poster_height / printable_height)
|
||
|
||
pages_x_landscape = math.ceil(poster_width / printable_height)
|
||
pages_y_landscape = math.ceil(poster_height / printable_width)
|
||
|
||
portrait = True
|
||
if pages_x_portrait * pages_y_portrait > pages_x_landscape * pages_y_landscape:
|
||
portrait = False
|
||
|
||
if portrait:
|
||
pages_x = pages_x_portrait
|
||
pages_y = pages_y_portrait
|
||
else:
|
||
pages_x = pages_x_landscape
|
||
pages_y = pages_y_landscape
|
||
|
||
# size of the bounding box of all pages after they have been glued together
|
||
if portrait:
|
||
self.layout["overallsize"] = (
|
||
pages_x * printable_width + (border_right + border_left),
|
||
pages_y * printable_height + (border_top + border_bottom),
|
||
)
|
||
else:
|
||
self.layout["overallsize"] = (
|
||
pages_x * printable_height + (border_top + border_bottom),
|
||
pages_y * printable_width + (border_right + border_left),
|
||
)
|
||
|
||
# position of the poster relative to upper left corner of layout["overallsize"]
|
||
if portrait:
|
||
self.layout["posterpos"] = (
|
||
border_left + (pages_x * printable_width - poster_width) / 2,
|
||
border_top + (pages_y * printable_height - poster_height) / 2,
|
||
)
|
||
else:
|
||
self.layout["posterpos"] = (
|
||
border_bottom + (pages_x * printable_height - poster_width) / 2,
|
||
border_right + (pages_y * printable_width - poster_height) / 2,
|
||
)
|
||
|
||
# positions are relative to self.layout["posterpos"]
|
||
self.layout["positions"] = []
|
||
for y in range(pages_y):
|
||
for x in range(pages_x):
|
||
if portrait:
|
||
posx = (
|
||
x * printable_width
|
||
- (pages_x * printable_width - poster_width) / 2
|
||
)
|
||
posy = (
|
||
y * printable_height
|
||
- (pages_y * printable_height - poster_height) / 2
|
||
)
|
||
else:
|
||
posx = (
|
||
x * printable_height
|
||
- (pages_x * printable_height - poster_width) / 2
|
||
)
|
||
posy = (
|
||
y * printable_width
|
||
- (pages_y * printable_width - poster_height) / 2
|
||
)
|
||
self.layout["positions"].append((posx, posy, portrait))
|
||
|
||
if strategy == "complex":
|
||
positions_complex = complex_cover(
|
||
poster_width, poster_height, printable_width, printable_height
|
||
)
|
||
|
||
if len(positions_complex) < len(self.layout["positions"]):
|
||
self.layout["positions"] = positions_complex
|
||
# figure out the borders around the final poster by analyzing
|
||
# the computed positions and storing the largest border size in
|
||
# each dimension
|
||
poster_top = poster_right = poster_bottom = poster_left = 0
|
||
for posx, posy, p in self.layout["positions"]:
|
||
if p:
|
||
top = posy - border_top
|
||
if top < 0 and -top > poster_top:
|
||
poster_top = -top
|
||
right = posx + printable_width + border_right - poster_width
|
||
if right > 0 and right > poster_right:
|
||
poster_right = right
|
||
bottom = posy + printable_height + border_bottom - poster_height
|
||
if bottom > 0 and bottom > poster_bottom:
|
||
poster_bottom = bottom
|
||
left = posx - border_left
|
||
if left < 0 and -left > poster_left:
|
||
poster_left = -left
|
||
else:
|
||
top = posy - border_left
|
||
if top < 0 and -top > poster_top:
|
||
poster_top = -top
|
||
right = posx + printable_height + border_top - poster_width
|
||
if right > 0 and right > poster_right:
|
||
poster_right = right
|
||
bottom = posy + printable_width + border_right - poster_height
|
||
if bottom > 0 and bottom > poster_bottom:
|
||
poster_bottom = bottom
|
||
left = posx - border_bottom
|
||
if left < 0 and -left > poster_left:
|
||
poster_left = -left
|
||
self.layout["overallsize"] = (
|
||
poster_width + poster_left + poster_right,
|
||
poster_height + poster_top + poster_bottom,
|
||
)
|
||
|
||
self.layout["posterpos"] = (poster_left, poster_top)
|
||
|
||
# size of output poster is always proportional to size of input page
|
||
self.layout["postersize"] = poster_width, poster_height
|
||
|
||
if mode == "size":
|
||
mult = (poster_width * poster_height) / (inpage_width * inpage_height)
|
||
npages = len(self.layout["positions"])
|
||
elif mode == "mult":
|
||
postersize = poster_width, poster_height
|
||
npages = len(self.layout["positions"])
|
||
elif mode == "npages":
|
||
postersize = poster_width, poster_height
|
||
mult = (poster_width * poster_height) / (inpage_width * inpage_height)
|
||
else:
|
||
raise Exception("unsupported mode: %s" % mode)
|
||
|
||
return postersize, mult, npages
|
||
|
||
def render(self, outfile, cover=False, guides=False, numbers=False, border=False):
|
||
if not hasattr(self, "layout"):
|
||
raise LayoutNotComputedException()
|
||
|
||
# since pymupdf 1.19.0 a warning will be issued if the deprecated names are used
|
||
if hasattr(self.doc[self.pagenr], "get_displaylist"):
|
||
gdl = self.doc[self.pagenr].get_displaylist
|
||
else:
|
||
gdl = self.doc[self.pagenr].getDisplayList
|
||
inpage_width = pt_to_mm(gdl().rect.width)
|
||
|
||
outdoc = fitz.open()
|
||
|
||
if cover:
|
||
# factor to convert from output poster dimensions (given in mm) into
|
||
# pdf dimensions (given in pt)
|
||
zoom_1 = min(
|
||
mm_to_pt(
|
||
self.layout["output_pagesize"][0]
|
||
- 2 * max(self.layout["border_left"], self.layout["border_right"])
|
||
)
|
||
/ (self.layout["overallsize"][0]),
|
||
mm_to_pt(
|
||
self.layout["output_pagesize"][1]
|
||
- 2 * max(self.layout["border_top"], self.layout["border_bottom"])
|
||
)
|
||
/ (self.layout["overallsize"][1]),
|
||
)
|
||
# since pymupdf 1.19.0 a warning will be issued if the deprecated names are used
|
||
if hasattr(outdoc, "new_page"):
|
||
np = outdoc.new_page
|
||
else:
|
||
np = outdoc.newPage
|
||
|
||
page = np(
|
||
-1, # insert after last page
|
||
width=mm_to_pt(self.layout["output_pagesize"][0]),
|
||
height=mm_to_pt(self.layout["output_pagesize"][1]),
|
||
)
|
||
for i, (x, y, portrait) in enumerate(self.layout["positions"]):
|
||
x0 = (x + self.layout["posterpos"][0]) * zoom_1 + (
|
||
mm_to_pt(self.layout["output_pagesize"][0])
|
||
- zoom_1 * self.layout["overallsize"][0]
|
||
) / 2
|
||
y0 = (y + self.layout["posterpos"][1]) * zoom_1 + (
|
||
mm_to_pt(self.layout["output_pagesize"][1])
|
||
- zoom_1 * self.layout["overallsize"][1]
|
||
) / 2
|
||
if portrait:
|
||
page_width = self.layout["output_pagesize"][0] * zoom_1
|
||
page_height = self.layout["output_pagesize"][1] * zoom_1
|
||
top = self.layout["border_top"] * zoom_1
|
||
right = self.layout["border_right"] * zoom_1
|
||
bottom = self.layout["border_bottom"] * zoom_1
|
||
left = self.layout["border_left"] * zoom_1
|
||
else:
|
||
# page is rotated 90 degrees clockwise
|
||
page_width = self.layout["output_pagesize"][1] * zoom_1
|
||
page_height = self.layout["output_pagesize"][0] * zoom_1
|
||
top = self.layout["border_left"] * zoom_1
|
||
right = self.layout["border_top"] * zoom_1
|
||
bottom = self.layout["border_right"] * zoom_1
|
||
left = self.layout["border_bottom"] * zoom_1
|
||
# inner rectangle
|
||
if hasattr(page, "new_shape"):
|
||
shape = page.new_shape()
|
||
else:
|
||
shape = page.newShape()
|
||
if hasattr(shape, "draw_rect"):
|
||
dr = shape.draw_rect
|
||
else:
|
||
dr = shape.drawRect
|
||
dr(
|
||
fitz.Rect(
|
||
x0,
|
||
y0,
|
||
x0 + page_width - left - right,
|
||
y0 + page_height - top - bottom,
|
||
)
|
||
)
|
||
shape.finish(color=(0, 0, 1))
|
||
# outer rectangle
|
||
dr(
|
||
fitz.Rect(
|
||
x0 - left,
|
||
y0 - top,
|
||
x0 - left + page_width,
|
||
y0 - top + page_height,
|
||
)
|
||
)
|
||
shape.finish(color=(1, 0, 0))
|
||
shape.insertTextbox(
|
||
fitz.Rect(
|
||
x0 + 5,
|
||
y0 + 5,
|
||
x0 + page_width - left - right - 5,
|
||
y0 + page_height - top - bottom - 5,
|
||
),
|
||
"%d" % (i + 1),
|
||
fontsize=20,
|
||
color=(0, 0, 0),
|
||
)
|
||
shape.commit()
|
||
|
||
for i, (x, y, portrait) in enumerate(self.layout["positions"]):
|
||
if portrait:
|
||
page_width = mm_to_pt(self.layout["output_pagesize"][0])
|
||
page_height = mm_to_pt(self.layout["output_pagesize"][1])
|
||
else:
|
||
page_width = mm_to_pt(self.layout["output_pagesize"][1])
|
||
page_height = mm_to_pt(self.layout["output_pagesize"][0])
|
||
# since pymupdf 1.19.0 a warning will be issued if the deprecated names are used
|
||
if hasattr(outdoc, "new_page"):
|
||
np = outdoc.new_page
|
||
else:
|
||
np = outdoc.newPage
|
||
page = np(
|
||
-1, width=page_width, height=page_height # insert after last page
|
||
)
|
||
|
||
if portrait:
|
||
target_x = x - self.layout["border_left"]
|
||
target_y = y - self.layout["border_top"]
|
||
target_width = self.layout["output_pagesize"][0]
|
||
target_height = self.layout["output_pagesize"][1]
|
||
else:
|
||
target_x = x - self.layout["border_bottom"]
|
||
target_y = y - self.layout["border_left"]
|
||
target_width = self.layout["output_pagesize"][1]
|
||
target_height = self.layout["output_pagesize"][0]
|
||
target_xoffset = 0
|
||
target_yoffset = 0
|
||
if target_x < 0:
|
||
target_xoffset = -target_x
|
||
target_width += target_x
|
||
target_x = 0
|
||
if target_y < 0:
|
||
target_yoffset = -target_y
|
||
target_height += target_y
|
||
target_y = 0
|
||
if target_x + target_width > self.layout["postersize"][0]:
|
||
target_width = self.layout["postersize"][0] - target_x
|
||
if target_y + target_height > self.layout["postersize"][1]:
|
||
target_height = self.layout["postersize"][1] - target_y
|
||
|
||
targetrect = fitz.Rect(
|
||
mm_to_pt(target_xoffset),
|
||
mm_to_pt(target_yoffset),
|
||
mm_to_pt(target_xoffset + target_width),
|
||
mm_to_pt(target_yoffset + target_height),
|
||
)
|
||
|
||
factor = inpage_width / self.layout["postersize"][0]
|
||
sourcerect = fitz.Rect(
|
||
mm_to_pt(factor * target_x),
|
||
mm_to_pt(factor * target_y),
|
||
mm_to_pt(factor * (target_x + target_width)),
|
||
mm_to_pt(factor * (target_y + target_height)),
|
||
)
|
||
|
||
# since pymupdf 1.19.0 a warning will be issued if the deprecated names are used
|
||
if hasattr(page, "show_pdf_page"):
|
||
spp = page.show_pdf_page
|
||
else:
|
||
spp = page.showPDFpage
|
||
spp(
|
||
targetrect, # fill the whole page
|
||
self.doc, # input document
|
||
self.pagenr, # input page number
|
||
clip=sourcerect, # part of the input page to use
|
||
)
|
||
|
||
if hasattr(page, "new_shape"):
|
||
shape = page.new_shape()
|
||
else:
|
||
shape = page.newShape()
|
||
if hasattr(shape, "draw_rect"):
|
||
dr = shape.draw_rect
|
||
else:
|
||
dr = shape.drawRect
|
||
if guides:
|
||
if portrait:
|
||
dr(
|
||
fitz.Rect(
|
||
mm_to_pt(self.layout["border_left"]),
|
||
mm_to_pt(self.layout["border_top"]),
|
||
page_width - mm_to_pt(self.layout["border_right"]),
|
||
page_height - mm_to_pt(self.layout["border_bottom"]),
|
||
)
|
||
)
|
||
else:
|
||
dr(
|
||
fitz.Rect(
|
||
mm_to_pt(self.layout["border_bottom"]),
|
||
mm_to_pt(self.layout["border_left"]),
|
||
page_width - mm_to_pt(self.layout["border_top"]),
|
||
page_height - mm_to_pt(self.layout["border_right"]),
|
||
)
|
||
)
|
||
shape.finish(width=0.2, color=(0.5, 0.5, 0.5), dashes="[5 6 1 6] 0")
|
||
if numbers:
|
||
if portrait:
|
||
shape.insertTextbox(
|
||
fitz.Rect(
|
||
mm_to_pt(self.layout["border_left"]) + 5,
|
||
mm_to_pt(self.layout["border_top"]) + 5,
|
||
page_width - mm_to_pt(self.layout["border_right"]) - 5,
|
||
page_height - mm_to_pt(self.layout["border_bottom"]) - 5,
|
||
),
|
||
"%d" % (i + 1),
|
||
fontsize=8,
|
||
color=(0.5, 0.5, 0.5),
|
||
)
|
||
else:
|
||
shape.insertTextbox(
|
||
fitz.Rect(
|
||
mm_to_pt(self.layout["border_bottom"]) + 5,
|
||
mm_to_pt(self.layout["border_left"]) + 5,
|
||
page_width - mm_to_pt(self.layout["border_top"]) - 5,
|
||
page_height - mm_to_pt(self.layout["border_right"]) - 5,
|
||
),
|
||
"%d" % (i + 1),
|
||
fontsize=8,
|
||
color=(0.5, 0.5, 0.5),
|
||
)
|
||
if border:
|
||
if portrait:
|
||
dr(
|
||
fitz.Rect(
|
||
mm_to_pt(self.layout["border_left"] - x),
|
||
mm_to_pt(self.layout["border_top"] - y),
|
||
mm_to_pt(
|
||
self.layout["border_left"]
|
||
- x
|
||
+ self.layout["postersize"][0]
|
||
),
|
||
mm_to_pt(
|
||
self.layout["border_top"]
|
||
- y
|
||
+ self.layout["postersize"][1]
|
||
),
|
||
)
|
||
)
|
||
else:
|
||
dr(
|
||
fitz.Rect(
|
||
mm_to_pt(self.layout["border_bottom"] - x),
|
||
mm_to_pt(self.layout["border_left"] - y),
|
||
mm_to_pt(
|
||
self.layout["border_bottom"]
|
||
- x
|
||
+ self.layout["postersize"][0]
|
||
),
|
||
mm_to_pt(
|
||
self.layout["border_left"]
|
||
- y
|
||
+ self.layout["postersize"][1]
|
||
),
|
||
)
|
||
)
|
||
shape.finish(width=0.2, color=(0.5, 0.5, 0.5), dashes="[1 1] 0")
|
||
shape.commit()
|
||
|
||
if hasattr(outfile, "write"):
|
||
# outfile is an object with a write() method
|
||
outfile.write(outdoc.write(garbage=4, deflate=True))
|
||
else:
|
||
# outfile is used as a filename
|
||
outdoc.save(outfile, garbage=4, deflate=True)
|
||
|
||
|
||
# from Python 3.7 Lib/idlelib/configdialog.py
|
||
# Copyright 2015-2017 Terry Jan Reedy
|
||
# Python License
|
||
class VerticalScrolledFrame(tkinter.Frame):
|
||
"""A pure Tkinter vertically scrollable frame.
|
||
|
||
* Use the 'interior' attribute to place widgets inside the scrollable frame
|
||
* Construct and pack/place/grid normally
|
||
* This frame only allows vertical scrolling
|
||
"""
|
||
|
||
def __init__(self, parent, *args, **kw):
|
||
tkinter.Frame.__init__(self, parent, *args, **kw)
|
||
|
||
# Create a canvas object and a vertical scrollbar for scrolling it.
|
||
vscrollbar = tkinter.Scrollbar(self, orient=tkinter.VERTICAL)
|
||
vscrollbar.pack(fill=tkinter.Y, side=tkinter.RIGHT, expand=tkinter.FALSE)
|
||
canvas = tkinter.Canvas(
|
||
self,
|
||
borderwidth=0,
|
||
highlightthickness=0,
|
||
yscrollcommand=vscrollbar.set,
|
||
width=240 * parent.winfo_fpixels("1i") / 96.0,
|
||
)
|
||
canvas.pack(side=tkinter.LEFT, fill=tkinter.BOTH, expand=tkinter.TRUE)
|
||
vscrollbar.config(command=canvas.yview)
|
||
|
||
# Reset the view.
|
||
canvas.xview_moveto(0)
|
||
canvas.yview_moveto(0)
|
||
|
||
# Create a frame inside the canvas which will be scrolled with it.
|
||
self.interior = interior = tkinter.Frame(canvas)
|
||
interior_id = canvas.create_window(0, 0, window=interior, anchor=tkinter.NW)
|
||
|
||
# Track changes to the canvas and frame width and sync them,
|
||
# also updating the scrollbar.
|
||
def _configure_interior(event):
|
||
# Update the scrollbars to match the size of the inner frame.
|
||
size = (interior.winfo_reqwidth(), interior.winfo_reqheight())
|
||
canvas.config(scrollregion="0 0 %s %s" % size)
|
||
|
||
interior.bind("<Configure>", _configure_interior)
|
||
|
||
def _configure_canvas(event):
|
||
if interior.winfo_reqwidth() != canvas.winfo_width():
|
||
# Update the inner frame's width to fill the canvas.
|
||
canvas.itemconfigure(interior_id, width=canvas.winfo_width())
|
||
|
||
canvas.bind("<Configure>", _configure_canvas)
|
||
|
||
return
|
||
|
||
|
||
# From Python 3.7 Lib/tkinter/__init__.py
|
||
# Copyright 2000 Fredrik Lundh
|
||
# Python License
|
||
#
|
||
# add support for 'state' and 'name' kwargs
|
||
# add support for updating list of options
|
||
class OptionMenu(tkinter.Menubutton):
|
||
"""OptionMenu which allows the user to select a value from a menu."""
|
||
|
||
def __init__(self, master, variable, value, *values, **kwargs):
|
||
"""Construct an optionmenu widget with the parent MASTER, with
|
||
the resource textvariable set to VARIABLE, the initially selected
|
||
value VALUE, the other menu values VALUES and an additional
|
||
keyword argument command."""
|
||
kw = {
|
||
"borderwidth": 2,
|
||
"textvariable": variable,
|
||
"indicatoron": 1,
|
||
"relief": tkinter.RAISED,
|
||
"anchor": "c",
|
||
"highlightthickness": 2,
|
||
}
|
||
if "state" in kwargs:
|
||
kw["state"] = kwargs["state"]
|
||
del kwargs["state"]
|
||
if "name" in kwargs:
|
||
kw["name"] = kwargs["name"]
|
||
del kwargs["name"]
|
||
tkinter.Widget.__init__(self, master, "menubutton", kw)
|
||
self.widgetName = "tk_optionMenu"
|
||
self.callback = kwargs.get("command")
|
||
self.variable = variable
|
||
if "command" in kwargs:
|
||
del kwargs["command"]
|
||
if kwargs:
|
||
raise tkinter.TclError("unknown option -" + list(kwargs.keys())[0])
|
||
self.set_values([value] + list(values))
|
||
|
||
def __getitem__(self, name):
|
||
if name == "menu":
|
||
return self.__menu
|
||
return tkinter.Widget.__getitem__(self, name)
|
||
|
||
def set_values(self, values):
|
||
menu = self.__menu = tkinter.Menu(self, name="menu", tearoff=0)
|
||
self.menuname = menu._w
|
||
for v in values:
|
||
menu.add_command(
|
||
label=v, command=tkinter._setit(self.variable, v, self.callback)
|
||
)
|
||
self["menu"] = menu
|
||
|
||
def destroy(self):
|
||
"""Destroy this widget and the associated menu."""
|
||
tkinter.Menubutton.destroy(self)
|
||
self.__menu = None
|
||
|
||
|
||
class Application(tkinter.Frame):
|
||
def __init__(self, master=None):
|
||
super().__init__(master)
|
||
self.master = master
|
||
self.master.title("plakativ")
|
||
|
||
self.pack(fill=tkinter.BOTH, expand=tkinter.TRUE)
|
||
|
||
self.canvas = tkinter.Canvas(self, bg="black")
|
||
self.canvas.pack(fill=tkinter.BOTH, side=tkinter.LEFT, expand=tkinter.TRUE)
|
||
self.canvas_size = self.canvas.winfo_width(), self.canvas.winfo_height()
|
||
self.canvas.bind("<Configure>", self.on_resize)
|
||
|
||
frame_right = tkinter.Frame(self)
|
||
frame_right.pack(side=tkinter.TOP, expand=tkinter.TRUE, fill=tkinter.Y)
|
||
|
||
top_frame = tkinter.Frame(frame_right)
|
||
top_frame.pack(fill=tkinter.X)
|
||
|
||
button_text = "Open PDF"
|
||
if have_img2pdf:
|
||
button_text = "Open PDF, JPG, PNG, TIF"
|
||
tkinter.Button(top_frame, text=button_text, command=self.on_open_button).pack(
|
||
side=tkinter.LEFT, expand=tkinter.TRUE, fill=tkinter.X
|
||
)
|
||
tkinter.Button(top_frame, text="Help", state=tkinter.DISABLED).pack(
|
||
side=tkinter.RIGHT, expand=tkinter.TRUE, fill=tkinter.X
|
||
)
|
||
|
||
frame1 = VerticalScrolledFrame(frame_right)
|
||
frame1.pack(side=tkinter.TOP, expand=tkinter.TRUE, fill=tkinter.Y)
|
||
|
||
self.input = InputWidget(frame1.interior)
|
||
self.input.pack(fill=tkinter.X)
|
||
self.input.set(1, (0, 0))
|
||
if hasattr(self, "plakativ"):
|
||
self.input.callback = self.on_input
|
||
|
||
self.pagesize = PageSizeWidget(frame1.interior)
|
||
self.pagesize.pack(fill=tkinter.X)
|
||
self.pagesize.set(False, (210, 297))
|
||
if hasattr(self, "plakativ"):
|
||
self.pagesize.callback = self.on_pagesize
|
||
|
||
self.bordersize = BorderSizeWidget(frame1.interior)
|
||
self.bordersize.pack(fill=tkinter.X)
|
||
self.bordersize.set(15.0, 15.0, 15.0, 15.0)
|
||
if hasattr(self, "plakativ"):
|
||
self.bordersize.callback = self.on_bordersize
|
||
|
||
self.postersize = PostersizeWidget(frame1.interior)
|
||
self.postersize.pack(fill=tkinter.X)
|
||
self.postersize.set("size", (False, (594, 841)), 1.0, 1)
|
||
if hasattr(self, "plakativ"):
|
||
self.postersize.callback = self.on_postersize
|
||
|
||
self.layouter = LayouterWidget(frame1.interior)
|
||
self.layouter.pack(fill=tkinter.X)
|
||
self.layouter.set("simple")
|
||
if hasattr(self, "plakativ"):
|
||
self.layouter.callback = self.on_layouter
|
||
|
||
self.outopts = OutOptsWidget(frame1.interior)
|
||
self.outopts.pack(fill=tkinter.X)
|
||
|
||
option_group = tkinter.LabelFrame(frame1.interior, text="Program options")
|
||
option_group.pack(fill=tkinter.X)
|
||
|
||
tkinter.Label(option_group, text="Unit:", state=tkinter.DISABLED).grid(
|
||
row=0, column=0, sticky=tkinter.W
|
||
)
|
||
unit = tkinter.StringVar()
|
||
unit.set("mm")
|
||
OptionMenu(option_group, unit, ["mm"], state=tkinter.DISABLED).grid(
|
||
row=0, column=1, sticky=tkinter.W
|
||
)
|
||
|
||
tkinter.Label(option_group, text="Language:", state=tkinter.DISABLED).grid(
|
||
row=1, column=0, sticky=tkinter.W
|
||
)
|
||
language = tkinter.StringVar()
|
||
language.set("English")
|
||
OptionMenu(option_group, language, ["English"], state=tkinter.DISABLED).grid(
|
||
row=1, column=1, sticky=tkinter.W
|
||
)
|
||
|
||
bottom_frame = tkinter.Frame(frame_right)
|
||
bottom_frame.pack(fill=tkinter.X)
|
||
|
||
self.save_button = tkinter.Button(
|
||
bottom_frame,
|
||
text="Save PDF",
|
||
command=self.on_save_button,
|
||
state=tkinter.DISABLED,
|
||
)
|
||
self.save_button.pack(side=tkinter.LEFT, expand=tkinter.TRUE, fill=tkinter.X)
|
||
|
||
quit_button = tkinter.Button(
|
||
bottom_frame, text="Exit", command=self.master.destroy
|
||
)
|
||
quit_button.pack(side=tkinter.RIGHT, expand=tkinter.TRUE, fill=tkinter.X)
|
||
|
||
def on_input(self, value):
|
||
_, pagesize = self.pagesize.value
|
||
pagenum, _ = value
|
||
mode, (custom_size, size), mult, npages = self.postersize.value
|
||
bordersize = self.bordersize.value
|
||
strategy = self.layouter.value
|
||
self.plakativ.set_input_pagenr(pagenum - 1)
|
||
size, mult, npages = self.plakativ.compute_layout(
|
||
mode, size, mult, npages, pagesize, bordersize, strategy
|
||
)
|
||
self.postersize.set(mode, (custom_size, size), mult, npages)
|
||
self.draw()
|
||
width, height = self.plakativ.get_input_page_size()
|
||
return "%.02f" % pt_to_mm(width), "%.02f" % pt_to_mm(height)
|
||
|
||
def on_pagesize(self, value):
|
||
_, pagesize = value
|
||
pagenum, _ = self.input.value
|
||
mode, (custom_size, size), mult, npages = self.postersize.value
|
||
bordersize = self.bordersize.value
|
||
strategy = self.layouter.value
|
||
self.plakativ.set_input_pagenr(pagenum - 1)
|
||
size, mult, npages = self.plakativ.compute_layout(
|
||
mode, size, mult, npages, pagesize, bordersize, strategy
|
||
)
|
||
self.postersize.set(mode, (custom_size, size), mult, npages)
|
||
self.draw()
|
||
|
||
def on_bordersize(self, value):
|
||
_, pagesize = self.pagesize.value
|
||
pagenum, _ = self.input.value
|
||
mode, (custom_size, size), mult, npages = self.postersize.value
|
||
strategy = self.layouter.value
|
||
self.plakativ.set_input_pagenr(pagenum - 1)
|
||
size, mult, npages = self.plakativ.compute_layout(
|
||
mode, size, mult, npages, pagesize, value, strategy
|
||
)
|
||
self.postersize.set(mode, (custom_size, size), mult, npages)
|
||
self.draw()
|
||
|
||
def on_postersize(self, value):
|
||
mode, (custom_size, size), mult, npages = value
|
||
pagenum, _ = self.input.value
|
||
_, pagesize = self.pagesize.value
|
||
border = self.bordersize.value
|
||
strategy = self.layouter.value
|
||
self.plakativ.set_input_pagenr(pagenum - 1)
|
||
size, mult, npages = self.plakativ.compute_layout(
|
||
mode, size, mult, npages, pagesize, border, strategy
|
||
)
|
||
self.draw()
|
||
return (mode, (custom_size, size), mult, npages)
|
||
|
||
def on_layouter(self, value):
|
||
_, pagesize = self.pagesize.value
|
||
pagenum, _ = self.input.value
|
||
mode, (custom_size, size), mult, npages = self.postersize.value
|
||
border = self.bordersize.value
|
||
self.plakativ.set_input_pagenr(pagenum - 1)
|
||
size, mult, npages = self.plakativ.compute_layout(
|
||
mode, size, mult, npages, pagesize, border, value
|
||
)
|
||
self.postersize.set(mode, (custom_size, size), mult, npages)
|
||
self.draw()
|
||
|
||
def on_resize(self, event):
|
||
self.canvas_size = (event.width, event.height)
|
||
self.draw()
|
||
|
||
def draw(self):
|
||
# clean canvas
|
||
self.canvas.delete(tkinter.ALL)
|
||
|
||
if not hasattr(self, "plakativ"):
|
||
button_text = "Open PDF"
|
||
if have_img2pdf:
|
||
button_text = "Open PDF, JPG, PNG, TIF"
|
||
self.canvas.create_text(
|
||
self.canvas_size[0] / 2,
|
||
self.canvas_size[1] / 2,
|
||
text='Click on the "%s" button in the upper right.' % button_text,
|
||
fill="white",
|
||
)
|
||
return
|
||
|
||
canvas_padding = 10
|
||
|
||
width, height = self.plakativ.get_input_page_size()
|
||
|
||
# factor to convert from input page dimensions (given in pt) into
|
||
# canvas dimensions (given in pixels)
|
||
zoom_0 = min(
|
||
self.canvas_size[0]
|
||
/ width
|
||
* self.plakativ.layout["postersize"][0]
|
||
/ (self.plakativ.layout["overallsize"][0] + canvas_padding),
|
||
self.canvas_size[1]
|
||
/ height
|
||
* self.plakativ.layout["postersize"][1]
|
||
/ (self.plakativ.layout["overallsize"][1] + canvas_padding),
|
||
)
|
||
|
||
img = self.plakativ.get_image(zoom_0)
|
||
tkimg = tkinter.PhotoImage(data=img)
|
||
|
||
# factor to convert from output poster dimensions (given in mm) into
|
||
# canvas dimensions (given in pixels)
|
||
zoom_1 = min(
|
||
self.canvas_size[0]
|
||
/ (self.plakativ.layout["overallsize"][0] + canvas_padding),
|
||
self.canvas_size[1]
|
||
/ (self.plakativ.layout["overallsize"][1] + canvas_padding),
|
||
)
|
||
|
||
# draw image on canvas
|
||
self.canvas.create_image(
|
||
(self.canvas_size[0] - zoom_1 * self.plakativ.layout["overallsize"][0]) / 2
|
||
+ zoom_1 * self.plakativ.layout["posterpos"][0],
|
||
(self.canvas_size[1] - zoom_1 * self.plakativ.layout["overallsize"][1]) / 2
|
||
+ zoom_1 * self.plakativ.layout["posterpos"][1],
|
||
anchor=tkinter.NW,
|
||
image=tkimg,
|
||
)
|
||
self.canvas.image = tkimg
|
||
|
||
# self.canvas.create_text(
|
||
# self.canvas_size[0] / 2,
|
||
# self.canvas_size[1] / 2,
|
||
# text="%d" % len(self.plakativ.layout["positions"]),
|
||
# fill="grey",
|
||
# font=("TkDefaultFont", 40),
|
||
# anchor=tkinter.CENTER,
|
||
# )
|
||
|
||
# draw rectangles
|
||
# TODO: also draw numbers indicating the page number
|
||
for x, y, portrait in self.plakativ.layout["positions"]:
|
||
x0 = (x + self.plakativ.layout["posterpos"][0]) * zoom_1 + (
|
||
self.canvas_size[0] - zoom_1 * self.plakativ.layout["overallsize"][0]
|
||
) / 2
|
||
y0 = (y + self.plakativ.layout["posterpos"][1]) * zoom_1 + (
|
||
self.canvas_size[1] - zoom_1 * self.plakativ.layout["overallsize"][1]
|
||
) / 2
|
||
if portrait:
|
||
page_width = self.plakativ.layout["output_pagesize"][0] * zoom_1
|
||
page_height = self.plakativ.layout["output_pagesize"][1] * zoom_1
|
||
top = self.plakativ.layout["border_top"] * zoom_1
|
||
right = self.plakativ.layout["border_right"] * zoom_1
|
||
bottom = self.plakativ.layout["border_bottom"] * zoom_1
|
||
left = self.plakativ.layout["border_left"] * zoom_1
|
||
else:
|
||
# page is rotated 90 degrees clockwise
|
||
page_width = self.plakativ.layout["output_pagesize"][1] * zoom_1
|
||
page_height = self.plakativ.layout["output_pagesize"][0] * zoom_1
|
||
top = self.plakativ.layout["border_left"] * zoom_1
|
||
right = self.plakativ.layout["border_top"] * zoom_1
|
||
bottom = self.plakativ.layout["border_right"] * zoom_1
|
||
left = self.plakativ.layout["border_bottom"] * zoom_1
|
||
# inner rectangle
|
||
self.canvas.create_rectangle(
|
||
x0,
|
||
y0,
|
||
x0 + page_width - left - right,
|
||
y0 + page_height - top - bottom,
|
||
outline="blue",
|
||
)
|
||
# outer rectangle
|
||
self.canvas.create_rectangle(
|
||
x0 - left,
|
||
y0 - top,
|
||
x0 - left + page_width,
|
||
y0 - top + page_height,
|
||
outline="red",
|
||
)
|
||
|
||
# filename = "out_%03d.ps" % len(self.plakativ.layout["positions"])
|
||
# self.canvas.postscript(file=filename)
|
||
# print("saved ", filename)
|
||
|
||
def on_open_button(self):
|
||
if have_img2pdf:
|
||
filetypes = [
|
||
("all supported", "*.pdf *.png *.jpg *.jpeg *.gif *.tiff *.tif"),
|
||
("pdf documents", "*.pdf"),
|
||
("png images", "*.png"),
|
||
("jpg images", "*.jpg *.jpeg"),
|
||
("gif images", "*.gif"),
|
||
("tiff images", "*.tiff *.tif"),
|
||
("all files", "*"),
|
||
]
|
||
else:
|
||
filetypes = [
|
||
("pdf documents", "*.pdf"),
|
||
("all files", "*"),
|
||
]
|
||
filename = tkinter.filedialog.askopenfilename(
|
||
parent=self.master,
|
||
title="Open either a PDF or a raster image",
|
||
filetypes=filetypes
|
||
# initialdir="/home/josch/git/plakativ",
|
||
# initialfile="test.pdf",
|
||
)
|
||
if filename == ():
|
||
return
|
||
self.open_file(filename)
|
||
|
||
def open_file(self, filename):
|
||
self.filename = filename
|
||
doc = None
|
||
if have_img2pdf:
|
||
# if we have img2pdf available we can encapsulate a raster image
|
||
# into a PDF container
|
||
data = None
|
||
try:
|
||
data = img2pdf.convert(self.filename)
|
||
except img2pdf.AlphaChannelError:
|
||
remove_alpha = tkinter.messagebox.askyesno(
|
||
title="Removing Alpha Channel",
|
||
message="PDF does not support alpha channels. Should the "
|
||
"alpha channel be removed? The resulting PDF might not be "
|
||
"lossless anymore.",
|
||
)
|
||
# remove alpha channel
|
||
if remove_alpha:
|
||
img = Image.open(self.filename).convert("RGBA")
|
||
background = Image.new("RGBA", img.size, (255, 255, 255))
|
||
img = Image.alpha_composite(background, img)
|
||
with BytesIO() as output:
|
||
img.convert("RGB").save(output, format="PNG")
|
||
output.seek(0)
|
||
data = img2pdf.convert(output)
|
||
else:
|
||
return
|
||
except img2pdf.ImageOpenError:
|
||
# img2pdf cannot handle this
|
||
pass
|
||
|
||
if data is not None:
|
||
stream = BytesIO()
|
||
stream.write(data)
|
||
doc = fitz.open(stream=stream, filetype="application/pdf")
|
||
if doc is None:
|
||
# either we didn't have img2pdf or opening the input with img2pdf
|
||
# failed
|
||
doc = fitz.open(filename=self.filename)
|
||
self.plakativ = Plakativ(doc)
|
||
# compute the splitting with the current values
|
||
mode, (custom_size, size), mult, npages = self.postersize.value
|
||
_, pagesize = self.pagesize.value
|
||
border = self.bordersize.value
|
||
strategy = self.layouter.value
|
||
size, mult, npages = self.plakativ.compute_layout(
|
||
mode, size, mult, npages, pagesize, border, strategy
|
||
)
|
||
# update input widget
|
||
width, height = self.plakativ.get_input_page_size()
|
||
self.input.set(1, ("%.02f" % pt_to_mm(width), "%.02f" % pt_to_mm(height)))
|
||
self.input.nametowidget("spinbox_pagenum").configure(
|
||
to=self.plakativ.get_input_pagenums()
|
||
)
|
||
self.input.nametowidget("label_of_pagenum").configure(
|
||
text="of %d" % self.plakativ.get_input_pagenums()
|
||
)
|
||
# update postersize widget
|
||
self.postersize.set(mode, (custom_size, size), mult, npages)
|
||
# draw preview in canvas
|
||
self.draw()
|
||
# enable save button
|
||
self.save_button.configure(state=tkinter.NORMAL)
|
||
# set callback function
|
||
self.input.callback = self.on_input
|
||
self.pagesize.callback = self.on_pagesize
|
||
self.bordersize.callback = self.on_bordersize
|
||
self.postersize.callback = self.on_postersize
|
||
self.layouter.callback = self.on_layouter
|
||
|
||
def on_save_button(self):
|
||
base, ext = os.path.splitext(os.path.basename(self.filename))
|
||
filename = tkinter.filedialog.asksaveasfilename(
|
||
parent=self.master,
|
||
title="Save as PDF",
|
||
defaultextension=".pdf",
|
||
filetypes=[("pdf documents", "*.pdf"), ("all files", "*")],
|
||
initialdir=os.path.dirname(self.filename),
|
||
initialfile=base + "_poster" + ext,
|
||
)
|
||
if filename == "":
|
||
return
|
||
self.plakativ.render(
|
||
filename,
|
||
cover=self.outopts.variables["cover"].get(),
|
||
guides=self.outopts.variables["guides"].get(),
|
||
numbers=self.outopts.variables["numbers"].get(),
|
||
border=self.outopts.variables["border"].get(),
|
||
)
|
||
|
||
|
||
class LayouterWidget(tkinter.LabelFrame):
|
||
def __init__(self, parent, *args, **kw):
|
||
tkinter.LabelFrame.__init__(self, parent, text="Layouter", *args, **kw)
|
||
|
||
self.callback = None
|
||
|
||
self.variables = {"strategy": tkinter.StringVar()}
|
||
|
||
def callback(varname, idx, op):
|
||
assert op == "w"
|
||
self.on_strategy(self.variables["strategy"].get())
|
||
|
||
self.variables["strategy"].trace("w", callback)
|
||
|
||
layouter1 = tkinter.Radiobutton(
|
||
self, text="Simple", variable=self.variables["strategy"], value="simple"
|
||
)
|
||
layouter1.pack(anchor=tkinter.W)
|
||
layouter3 = tkinter.Radiobutton(
|
||
self, text="Complex", variable=self.variables["strategy"], value="complex"
|
||
)
|
||
layouter3.pack(anchor=tkinter.W)
|
||
|
||
def on_strategy(self, value):
|
||
if getattr(self, "value", None) is None:
|
||
return
|
||
strategy = self.value
|
||
self.set(value)
|
||
|
||
def set(self, strategy):
|
||
# before setting self.value, check if the effective value is different
|
||
# from before or otherwise we do not need to execute the callback in
|
||
# the end
|
||
state_changed = True
|
||
if getattr(self, "value", None) is not None:
|
||
state_changed = self.value != strategy
|
||
# execute callback if necessary
|
||
if state_changed and self.callback is not None:
|
||
pagesize = self.callback(strategy)
|
||
self.value = strategy
|
||
if self.variables["strategy"].get() != strategy:
|
||
self.variables["strategy"].set(strategy)
|
||
|
||
|
||
class OutOptsWidget(tkinter.LabelFrame):
|
||
def __init__(self, parent, *args, **kw):
|
||
tkinter.LabelFrame.__init__(self, parent, text="Output options", *args, **kw)
|
||
|
||
self.variables = {
|
||
"guides": tkinter.IntVar(),
|
||
"border": tkinter.IntVar(),
|
||
"numbers": tkinter.IntVar(),
|
||
"cover": tkinter.IntVar(),
|
||
}
|
||
|
||
tkinter.Checkbutton(
|
||
self, text="Print cutting guides", variable=self.variables["guides"]
|
||
).pack(anchor=tkinter.W)
|
||
tkinter.Checkbutton(
|
||
self, text="Print poster border", variable=self.variables["border"]
|
||
).pack(anchor=tkinter.W)
|
||
tkinter.Checkbutton(
|
||
self, text="Print page number", variable=self.variables["numbers"]
|
||
).pack(anchor=tkinter.W)
|
||
tkinter.Checkbutton(
|
||
self, text="Print layout cover page", variable=self.variables["cover"]
|
||
).pack(anchor=tkinter.W)
|
||
|
||
|
||
class InputWidget(tkinter.LabelFrame):
|
||
def __init__(self, parent, *args, **kw):
|
||
tkinter.LabelFrame.__init__(self, parent, text="Input properties", *args, **kw)
|
||
|
||
self.callback = None
|
||
|
||
self.variables = {
|
||
"pagenum": tkinter.IntVar(),
|
||
"width": tkinter.StringVar(),
|
||
"height": tkinter.StringVar(),
|
||
}
|
||
|
||
def callback(varname, idx, op):
|
||
assert op == "w"
|
||
self.on_pagenum(self.variables["pagenum"].get())
|
||
|
||
self.variables["pagenum"].trace("w", callback)
|
||
|
||
tkinter.Label(self, text="Use page").grid(row=0, column=0, sticky=tkinter.W)
|
||
tkinter.Spinbox(
|
||
self,
|
||
increment=1,
|
||
from_=1,
|
||
to=100,
|
||
width=3,
|
||
name="spinbox_pagenum",
|
||
textvariable=self.variables["pagenum"],
|
||
).grid(row=0, column=1, sticky=tkinter.W)
|
||
tkinter.Label(self, text="of 1", name="label_of_pagenum").grid(
|
||
row=0, column=2, sticky=tkinter.W
|
||
)
|
||
tkinter.Label(self, text="Width:").grid(row=1, column=0, sticky=tkinter.W)
|
||
tkinter.Label(self, textvariable=self.variables["width"]).grid(
|
||
row=1, column=1, sticky=tkinter.W
|
||
)
|
||
tkinter.Label(self, text="mm", name="size_label_width_mm").grid(
|
||
row=1, column=2, sticky=tkinter.W
|
||
)
|
||
tkinter.Label(self, text="Height:").grid(row=2, column=0, sticky=tkinter.W)
|
||
tkinter.Label(self, textvariable=self.variables["height"]).grid(
|
||
row=2, column=1, sticky=tkinter.W
|
||
)
|
||
tkinter.Label(self, text="mm", name="size_label_height_mm").grid(
|
||
row=2, column=2, sticky=tkinter.W
|
||
)
|
||
|
||
def on_pagenum(self, value):
|
||
if getattr(self, "value", None) is None:
|
||
return
|
||
_, size = self.value
|
||
self.set(value, size)
|
||
|
||
def set(self, pagenum, pagesize):
|
||
# before setting self.value, check if the effective value is different
|
||
# from before or otherwise we do not need to execute the callback in
|
||
# the end
|
||
state_changed = True
|
||
if getattr(self, "value", None) is not None:
|
||
state_changed = self.value != (pagenum, pagesize)
|
||
# execute callback if necessary
|
||
if state_changed and self.callback is not None:
|
||
pagesize = self.callback((pagenum, pagesize))
|
||
self.value = (pagenum, pagesize)
|
||
width, height = pagesize
|
||
if self.variables["pagenum"].get() != pagenum:
|
||
self.variables["pagenum"].set(pagenum)
|
||
if self.variables["width"].get() != width:
|
||
self.variables["width"].set(width)
|
||
if self.variables["height"].get() != height:
|
||
self.variables["height"].set(height)
|
||
|
||
|
||
class PageSizeWidget(tkinter.LabelFrame):
|
||
def __init__(self, parent, *args, **kw):
|
||
tkinter.LabelFrame.__init__(
|
||
self, parent, text="Size of output pages", *args, **kw
|
||
)
|
||
|
||
self.callback = None
|
||
|
||
self.variables = {
|
||
"dropdown": tkinter.StringVar(),
|
||
"width": tkinter.DoubleVar(),
|
||
"height": tkinter.DoubleVar(),
|
||
}
|
||
|
||
for k, v in self.variables.items():
|
||
# need to pass k and v as function arguments so that their value
|
||
# does not get overwritten each loop iteration
|
||
def callback(varname, idx, op, k_copy=k, v_copy=v):
|
||
assert op == "w"
|
||
getattr(self, "on_" + k_copy)(v_copy.get())
|
||
|
||
v.trace("w", callback)
|
||
|
||
OptionMenu(self, self.variables["dropdown"], *PAGE_SIZES.keys()).grid(
|
||
row=1, column=0, columnspan=3, sticky=tkinter.W
|
||
)
|
||
|
||
tkinter.Label(
|
||
self, text="Width:", state=tkinter.DISABLED, name="size_label_width"
|
||
).grid(row=2, column=0, sticky=tkinter.W)
|
||
tkinter.Spinbox(
|
||
self,
|
||
format="%.2f",
|
||
increment=0.01,
|
||
from_=0,
|
||
to=100,
|
||
width=5,
|
||
state=tkinter.DISABLED,
|
||
name="spinbox_width",
|
||
textvariable=self.variables["width"],
|
||
).grid(row=2, column=1, sticky=tkinter.W)
|
||
tkinter.Label(
|
||
self, text="mm", state=tkinter.DISABLED, name="size_label_width_mm"
|
||
).grid(row=2, column=2, sticky=tkinter.W)
|
||
|
||
tkinter.Label(
|
||
self, text="Height:", state=tkinter.DISABLED, name="size_label_height"
|
||
).grid(row=3, column=0, sticky=tkinter.W)
|
||
tkinter.Spinbox(
|
||
self,
|
||
format="%.2f",
|
||
increment=0.01,
|
||
from_=0,
|
||
to=100,
|
||
width=5,
|
||
state=tkinter.DISABLED,
|
||
name="spinbox_height",
|
||
textvariable=self.variables["height"],
|
||
).grid(row=3, column=1, sticky=tkinter.W)
|
||
tkinter.Label(
|
||
self, text="mm", state=tkinter.DISABLED, name="size_label_height_mm"
|
||
).grid(row=3, column=2, sticky=tkinter.W)
|
||
|
||
def on_dropdown(self, value):
|
||
custom_size, size = self.value
|
||
if value == "custom":
|
||
custom_size = True
|
||
else:
|
||
custom_size = False
|
||
size = PAGE_SIZES[value]
|
||
self.set(custom_size, size)
|
||
|
||
def on_width(self, value):
|
||
if getattr(self, "value", None) is None:
|
||
return
|
||
custom_size, (_, height) = self.value
|
||
self.set(custom_size, (value, height))
|
||
|
||
def on_height(self, value):
|
||
if getattr(self, "value", None) is None:
|
||
return
|
||
custom_size, (width, _) = self.value
|
||
self.set(custom_size, (width, value))
|
||
|
||
def set(self, custom_size, pagesize):
|
||
# before setting self.value, check if the effective value is different
|
||
# from before or otherwise we do not need to execute the callback in
|
||
# the end
|
||
state_changed = True
|
||
if getattr(self, "value", None) is not None:
|
||
state_changed = self.value != (custom_size, pagesize)
|
||
# execute callback if necessary
|
||
if state_changed and self.callback is not None:
|
||
self.callback((custom_size, pagesize))
|
||
self.value = (custom_size, pagesize)
|
||
width, height = pagesize
|
||
if custom_size:
|
||
self.nametowidget("size_label_width").configure(state=tkinter.NORMAL)
|
||
self.nametowidget("spinbox_width").configure(state=tkinter.NORMAL)
|
||
self.nametowidget("size_label_width_mm").configure(state=tkinter.NORMAL)
|
||
self.nametowidget("size_label_height").configure(state=tkinter.NORMAL)
|
||
self.nametowidget("spinbox_height").configure(state=tkinter.NORMAL)
|
||
self.nametowidget("size_label_height_mm").configure(state=tkinter.NORMAL)
|
||
else:
|
||
self.nametowidget("size_label_width").configure(state=tkinter.DISABLED)
|
||
self.nametowidget("spinbox_width").configure(state=tkinter.DISABLED)
|
||
self.nametowidget("size_label_width_mm").configure(state=tkinter.DISABLED)
|
||
self.nametowidget("size_label_height").configure(state=tkinter.DISABLED)
|
||
self.nametowidget("spinbox_height").configure(state=tkinter.DISABLED)
|
||
self.nametowidget("size_label_height_mm").configure(state=tkinter.DISABLED)
|
||
# only set variables that changed to not trigger multiple variable tracers
|
||
if custom_size:
|
||
if self.variables["dropdown"].get() != "custom":
|
||
self.variables["dropdown"].set("custom")
|
||
else:
|
||
val = dict(zip(PAGE_SIZES.values(), PAGE_SIZES.keys()))[(width, height)]
|
||
if self.variables["dropdown"].get() != val:
|
||
self.variables["dropdown"].set(val)
|
||
if self.variables["width"].get() != width:
|
||
self.variables["width"].set(width)
|
||
if self.variables["height"].get() != height:
|
||
self.variables["height"].set(height)
|
||
|
||
|
||
class BorderSizeWidget(tkinter.LabelFrame):
|
||
def __init__(self, parent, *args, **kw):
|
||
tkinter.LabelFrame.__init__(
|
||
self, parent, text="Output Borders/Overlap", *args, **kw
|
||
)
|
||
|
||
self.callback = None
|
||
|
||
self.variables = dict()
|
||
for i, (n, label) in enumerate(
|
||
[
|
||
("top", "Top:"),
|
||
("right", "Right:"),
|
||
("bottom", "Bottom:"),
|
||
("left", "Left:"),
|
||
]
|
||
):
|
||
self.variables[n] = tkinter.DoubleVar()
|
||
|
||
# need to pass k and v as function arguments so that their value
|
||
# does not get overwritten each loop iteration
|
||
def callback(varname, idx, op, k_copy=n, v_copy=self.variables[n]):
|
||
assert op == "w"
|
||
getattr(self, "on_" + k_copy)(v_copy.get())
|
||
|
||
self.variables[n].trace("w", callback)
|
||
|
||
tkinter.Label(self, text=label).grid(row=i, column=0, sticky=tkinter.W)
|
||
tkinter.Spinbox(
|
||
self,
|
||
format="%.2f",
|
||
increment=1.0,
|
||
from_=0,
|
||
to=100,
|
||
width=5,
|
||
textvariable=self.variables[n],
|
||
).grid(row=i, column=1)
|
||
tkinter.Label(self, text="mm").grid(row=i, column=2)
|
||
|
||
def on_top(self, value):
|
||
if getattr(self, "value", None) is None:
|
||
return
|
||
_, right, bottom, left = self.value
|
||
self.set(value, right, bottom, left)
|
||
|
||
def on_right(self, value):
|
||
if getattr(self, "value", None) is None:
|
||
return
|
||
top, _, bottom, left = self.value
|
||
self.set(top, value, bottom, left)
|
||
|
||
def on_bottom(self, value):
|
||
if getattr(self, "value", None) is None:
|
||
return
|
||
top, right, _, left = self.value
|
||
self.set(top, right, value, left)
|
||
|
||
def on_left(self, value):
|
||
if getattr(self, "value", None) is None:
|
||
return
|
||
top, right, bottom, _ = self.value
|
||
self.set(top, right, bottom, value)
|
||
|
||
def set(self, top, right, bottom, left):
|
||
# before setting self.value, check if the effective value is different
|
||
# from before or otherwise we do not need to execute the callback in
|
||
# the end
|
||
state_changed = True
|
||
if getattr(self, "value", None) is not None:
|
||
state_changed = self.value != (top, right, bottom, left)
|
||
# execute callback if necessary
|
||
if state_changed and self.callback is not None:
|
||
self.callback((top, right, bottom, left))
|
||
self.value = top, right, bottom, left
|
||
# only set variables that changed to not trigger multiple variable tracers
|
||
if self.variables["top"].get() != top:
|
||
self.variables["top"].set(top)
|
||
if self.variables["right"].get() != right:
|
||
self.variables["right"].set(right)
|
||
if self.variables["bottom"].get() != bottom:
|
||
self.variables["bottom"].set(bottom)
|
||
if self.variables["left"].get() != left:
|
||
self.variables["left"].set(left)
|
||
|
||
|
||
class PostersizeWidget(tkinter.LabelFrame):
|
||
def __init__(self, parent, *args, **kw):
|
||
tkinter.LabelFrame.__init__(self, parent, text="Poster Size", *args, **kw)
|
||
|
||
self.callback = None
|
||
|
||
self.variables = {
|
||
"radio": tkinter.StringVar(),
|
||
"dropdown": tkinter.StringVar(),
|
||
"width": tkinter.DoubleVar(),
|
||
"height": tkinter.DoubleVar(),
|
||
"multiplier": tkinter.DoubleVar(),
|
||
"pages": tkinter.IntVar(),
|
||
}
|
||
|
||
for k, v in self.variables.items():
|
||
# need to pass k and v as function arguments so that their value
|
||
# does not get overwritten each loop iteration
|
||
def callback(varname, idx, op, k_copy=k, v_copy=v):
|
||
assert op == "w"
|
||
getattr(self, "on_" + k_copy)(v_copy.get())
|
||
|
||
v.trace("w", callback)
|
||
|
||
tkinter.Radiobutton(
|
||
self,
|
||
text="Fit into width/height",
|
||
variable=self.variables["radio"],
|
||
value="size",
|
||
state=tkinter.DISABLED,
|
||
name="size_radio",
|
||
).grid(row=0, column=0, columnspan=3, sticky=tkinter.W)
|
||
|
||
OptionMenu(
|
||
self,
|
||
self.variables["dropdown"],
|
||
*PAGE_SIZES.keys(),
|
||
# state=tkinter.DISABLED,
|
||
name="size_dropdown",
|
||
).grid(row=1, column=0, columnspan=3, sticky=tkinter.W, padx=(27, 0))
|
||
|
||
tkinter.Label(
|
||
self, text="Width:", state=tkinter.DISABLED, name="size_label_width"
|
||
).grid(row=2, column=0, sticky=tkinter.W, padx=(27, 0))
|
||
tkinter.Spinbox(
|
||
self,
|
||
format="%.2f",
|
||
increment=0.1,
|
||
from_=0,
|
||
to=10000,
|
||
width=5,
|
||
textvariable=self.variables["width"],
|
||
state=tkinter.DISABLED,
|
||
name="size_spinbox_width",
|
||
).grid(row=2, column=1, sticky=tkinter.W)
|
||
tkinter.Label(
|
||
self, text="mm", state=tkinter.DISABLED, name="size_label_width_mm"
|
||
).grid(row=2, column=2, sticky=tkinter.W)
|
||
|
||
tkinter.Label(
|
||
self, text="Height:", state=tkinter.DISABLED, name="size_label_height"
|
||
).grid(row=3, column=0, sticky=tkinter.W, padx=(27, 0))
|
||
tkinter.Spinbox(
|
||
self,
|
||
format="%.2f",
|
||
increment=0.1,
|
||
from_=0,
|
||
to=10000,
|
||
width=5,
|
||
textvariable=self.variables["height"],
|
||
state=tkinter.DISABLED,
|
||
name="size_spinbox_height",
|
||
).grid(row=3, column=1, sticky=tkinter.W)
|
||
tkinter.Label(
|
||
self, text="mm", state=tkinter.DISABLED, name="size_label_height_mm"
|
||
).grid(row=3, column=2, sticky=tkinter.W)
|
||
|
||
tkinter.Radiobutton(
|
||
self,
|
||
text="Factor of input page area",
|
||
variable=self.variables["radio"],
|
||
value="mult",
|
||
state=tkinter.DISABLED,
|
||
name="mult_radio",
|
||
).grid(row=4, column=0, columnspan=3, sticky=tkinter.W)
|
||
tkinter.Label(
|
||
self,
|
||
text="Multiplier:",
|
||
state=tkinter.DISABLED,
|
||
name="mult_label_multiplier",
|
||
).grid(row=5, column=0, sticky=tkinter.W, padx=(27, 0))
|
||
tkinter.Spinbox(
|
||
self,
|
||
format="%.2f",
|
||
increment=0.01,
|
||
from_=0,
|
||
to=10000,
|
||
width=6,
|
||
textvariable=self.variables["multiplier"],
|
||
state=tkinter.DISABLED,
|
||
name="mult_spinbox_multiplier",
|
||
).grid(row=5, column=1, sticky=tkinter.W)
|
||
|
||
tkinter.Radiobutton(
|
||
self,
|
||
text="Fit into X output pages",
|
||
variable=self.variables["radio"],
|
||
value="npages",
|
||
state=tkinter.DISABLED,
|
||
name="npages_radio",
|
||
).grid(row=6, column=0, columnspan=3, sticky=tkinter.W)
|
||
tkinter.Label(
|
||
self, text="# of pages:", state=tkinter.DISABLED, name="npages_label"
|
||
).grid(row=7, column=0, sticky=tkinter.W, padx=(27, 0))
|
||
tkinter.Spinbox(
|
||
self,
|
||
increment=1,
|
||
from_=1,
|
||
to=10000,
|
||
width=6,
|
||
textvariable=self.variables["pages"],
|
||
state=tkinter.DISABLED,
|
||
name="npages_spinbox",
|
||
).grid(row=7, column=1, sticky=tkinter.W)
|
||
|
||
def on_radio(self, value):
|
||
_, size, mult, npages = self.value
|
||
self.set(value, size, mult, npages)
|
||
|
||
def on_dropdown(self, value):
|
||
mode, (custom_size, size), mult, npages = self.value
|
||
if value == "custom":
|
||
custom_size = True
|
||
else:
|
||
custom_size = False
|
||
size = PAGE_SIZES[value]
|
||
self.set(mode, (custom_size, size), mult, npages)
|
||
|
||
def on_width(self, value):
|
||
if getattr(self, "value", None) is None:
|
||
return
|
||
mode, (custom_size, (_, height)), mult, npages = self.value
|
||
self.set(mode, (custom_size, (value, height)), mult, npages)
|
||
|
||
def on_height(self, value):
|
||
if getattr(self, "value", None) is None:
|
||
return
|
||
mode, (custom_size, (width, _)), mult, npages = self.value
|
||
self.set(mode, (custom_size, (width, value)), mult, npages)
|
||
|
||
def on_multiplier(self, value):
|
||
if getattr(self, "value", None) is None:
|
||
return
|
||
mode, size, _, npages = self.value
|
||
self.set(mode, size, value, npages)
|
||
|
||
def on_pages(self, value):
|
||
if getattr(self, "value", None) is None:
|
||
return
|
||
mode, size, mult, _ = self.value
|
||
self.set(mode, size, mult, value)
|
||
|
||
def set(self, mode, size, mult, npages):
|
||
# before setting self.value, check if the effective value is different
|
||
# from before or otherwise we do not need to execute the callback in
|
||
# the end
|
||
state_changed = True
|
||
if getattr(self, "value", None) is not None:
|
||
if mode == self.value[0] == "size":
|
||
state_changed = self.value[1][1] != size[1]
|
||
elif mode == self.value[0] == "mult":
|
||
state_changed = self.value[2] != mult
|
||
elif mode == self.value[0] == "npages":
|
||
state_changed = self.value[3] != npages
|
||
# execute callback if necessary
|
||
if state_changed and self.callback is not None:
|
||
mode, size, mult, npages = self.callback((mode, size, mult, npages))
|
||
self.value = (mode, size, mult, npages)
|
||
custom_size, (width, height) = size
|
||
# cycle through all widgets and set the state accordingly
|
||
for k, v in self.children.items():
|
||
if k.endswith("_radio"):
|
||
v.configure(state=tkinter.NORMAL)
|
||
continue
|
||
if not k.startswith(mode + "_"):
|
||
v.configure(state=tkinter.DISABLED)
|
||
continue
|
||
if k in ["size_dropdown", "size_radio"]:
|
||
v.configure(state=tkinter.NORMAL)
|
||
continue
|
||
if mode != "size":
|
||
v.configure(state=tkinter.NORMAL)
|
||
continue
|
||
if custom_size:
|
||
v.configure(state=tkinter.NORMAL)
|
||
continue
|
||
v.configure(state=tkinter.DISABLED)
|
||
# only set variables that changed to not trigger multiple variable tracers
|
||
if custom_size or mode != "size":
|
||
if self.variables["dropdown"].get() != "custom":
|
||
self.variables["dropdown"].set("custom")
|
||
else:
|
||
val = dict(zip(PAGE_SIZES.values(), PAGE_SIZES.keys()))[(width, height)]
|
||
if self.variables["dropdown"].get() != val:
|
||
self.variables["dropdown"].set(val)
|
||
if self.variables["radio"].get() != mode:
|
||
self.variables["radio"].set(mode)
|
||
if self.variables["width"].get() != width:
|
||
self.variables["width"].set(width)
|
||
if self.variables["height"].get() != height:
|
||
self.variables["height"].set(height)
|
||
if self.variables["multiplier"].get() != mult:
|
||
self.variables["multiplier"].set(mult)
|
||
if self.variables["pages"].get() != npages:
|
||
self.variables["pages"].set(npages)
|
||
|
||
|
||
def compute_layout(
|
||
infile,
|
||
outfile,
|
||
mode,
|
||
size=None,
|
||
mult=None,
|
||
npages=None,
|
||
pagenr=0,
|
||
pagesize=(210, 297),
|
||
border=(0, 0, 0, 0),
|
||
strategy="simple",
|
||
remove_alpha=False,
|
||
cover=False,
|
||
guides=False,
|
||
numbers=False,
|
||
poster_border=False,
|
||
):
|
||
doc = None
|
||
if hasattr(infile, "read"):
|
||
# we have to slurp in the whole file because we potentially read it
|
||
# in multiple times in case img2pdf is installed
|
||
# also, mupdf needs to be able to seek(), so we need to slurp it in
|
||
# anyways
|
||
infile = BytesIO(infile.read())
|
||
if have_img2pdf:
|
||
# if we have img2pdf available we can encapsulate a raster image
|
||
# into a PDF container
|
||
data = None
|
||
try:
|
||
# FIXME: img2pdf should not use the root logger so that instead we
|
||
# can run logging.getLogger('img2pdf').setLevel(logging.CRITICAL)
|
||
logging.getLogger().setLevel(logging.CRITICAL)
|
||
data = img2pdf.convert(infile)
|
||
except img2pdf.AlphaChannelError:
|
||
if remove_alpha:
|
||
# remove alpha channel
|
||
from PIL import Image
|
||
|
||
img = Image.open(infile).convert("RGBA")
|
||
background = Image.new("RGBA", img.size, (255, 255, 255))
|
||
img = Image.alpha_composite(background, img)
|
||
with BytesIO() as output:
|
||
img.convert("RGB").save(output, format="PNG")
|
||
output.seek(0)
|
||
data = img2pdf.convert(output)
|
||
else:
|
||
print(
|
||
"""
|
||
Plakativ is lossless by default. To automatically remove the alpha channel from
|
||
the input and place the image on a white background, use the --remove-alpha
|
||
option""",
|
||
file=sys.stderr,
|
||
)
|
||
exit(1)
|
||
except img2pdf.ImageOpenError:
|
||
# img2pdf cannot handle this
|
||
pass
|
||
|
||
if data is not None:
|
||
stream = BytesIO()
|
||
stream.write(data)
|
||
doc = fitz.open(stream=stream, filetype="application/pdf")
|
||
if doc is None:
|
||
# either we didn't have img2pdf or opening the input with img2pdf
|
||
# failed
|
||
if hasattr(infile, "read"):
|
||
doc = fitz.open(stream=infile, filetype="application/pdf")
|
||
else:
|
||
doc = fitz.open(filename=infile)
|
||
plakativ = Plakativ(doc, pagenr)
|
||
plakativ.compute_layout(mode, size, mult, npages, pagesize, border, strategy)
|
||
plakativ.render(outfile, cover, guides, numbers, poster_border)
|
||
doc.close()
|
||
|
||
|
||
def gui(filename=None):
|
||
if not have_tkinter:
|
||
raise Exception("the GUI requires tkinter")
|
||
root = tkinter.Tk()
|
||
app = Application(master=root)
|
||
if filename is not None:
|
||
app.open_file(filename)
|
||
app.mainloop()
|
||
|
||
|
||
def parse_num(num, name):
|
||
if num == "":
|
||
raise argparse.ArgumentTypeError("%s is empty" % name)
|
||
unit = None
|
||
if num.endswith("pt"):
|
||
unit = Unit.pt
|
||
elif num.endswith("cm"):
|
||
unit = Unit.cm
|
||
elif num.endswith("mm"):
|
||
unit = Unit.mm
|
||
elif num.endswith("in"):
|
||
unit = Unit.inch
|
||
else:
|
||
try:
|
||
num = float(num)
|
||
except ValueError:
|
||
msg = (
|
||
"%s is not a floating point number and doesn't have a "
|
||
"valid unit: %s" % (name, num)
|
||
)
|
||
raise argparse.ArgumentTypeError(msg)
|
||
if unit is None:
|
||
unit = Unit.mm
|
||
else:
|
||
num = num[:-2]
|
||
try:
|
||
num = float(num)
|
||
except ValueError:
|
||
msg = "%s is not a floating point number: %s" % (name, num)
|
||
raise argparse.ArgumentTypeError(msg)
|
||
if num < 0:
|
||
msg = "%s must not be negative: %s" % (name, num)
|
||
raise argparse.ArgumentTypeError(msg)
|
||
if unit == Unit.cm:
|
||
num = cm_to_mm(num)
|
||
elif unit == Unit.pt:
|
||
num = pt_to_mm(num)
|
||
elif unit == Unit.inch:
|
||
num = in_to_mm(num)
|
||
return num
|
||
|
||
|
||
def parse_borderarg(string):
|
||
if ":" in string:
|
||
vals = string.split(":")
|
||
if len(vals) in [0, 1]:
|
||
raise argparse.ArgumentTypeError("logic error")
|
||
elif len(vals) == 2:
|
||
t = b = parse_num(vals[0], "top/bottom border")
|
||
r = l = parse_num(vals[1], "right/left border")
|
||
elif len(vals) == 3:
|
||
t = parse_num(vals[0], "top border")
|
||
r = l = parse_num(vals[1], "right/left border")
|
||
b = parse_num(vals[2], "bottom border")
|
||
elif len(vals) == 4:
|
||
t = parse_num(vals[0], "top border")
|
||
r = parse_num(vals[1], "right border")
|
||
b = parse_num(vals[2], "bottom border")
|
||
l = parse_num(vals[3], "left border")
|
||
else:
|
||
raise argparse.ArgumentTypeError(
|
||
"border option can not have more than four values"
|
||
)
|
||
else:
|
||
if string == "":
|
||
raise argparse.ArgumentTypeError("border option cannot be empty")
|
||
val = parse_num(string, "border")
|
||
t, r, b, l = val, val, val, val
|
||
return t, r, b, l
|
||
|
||
|
||
def parse_pagesize_rectarg(string):
|
||
if papersizes.get(string.lower()):
|
||
string = papersizes[string.lower()]
|
||
if "x" not in string:
|
||
# if there is no separating "x" in the string, then the string is
|
||
# interpreted as the width
|
||
w = parse_num(string, "width")
|
||
h = None
|
||
else:
|
||
w, h = string.split("x", 1)
|
||
w = parse_num(w, "width")
|
||
h = parse_num(h, "height")
|
||
if w is None and h is None:
|
||
raise argparse.ArgumentTypeError("at least one dimension must be specified")
|
||
return w, h
|
||
|
||
|
||
def main():
|
||
if len(sys.argv) == 1 and platform.system() != "Windows":
|
||
print(
|
||
"""
|
||
You called plakativ without arguments. At least one of the options --size,
|
||
--factor or --maxpages is required for running plakativ on the command line.
|
||
But maybe you meant to run the plakativ GUI instead? On platforms other than
|
||
Windows, the default is to run the command line interface. To run the graphical
|
||
user interface, run plakativ with the --gui option instead.
|
||
""",
|
||
file=sys.stderr,
|
||
)
|
||
|
||
rendered_papersizes = ""
|
||
for k, v in sorted(papersizes.items()):
|
||
rendered_papersizes += " %-8s %s\n" % (papernames[k], v)
|
||
|
||
parser = argparse.ArgumentParser(
|
||
formatter_class=argparse.RawDescriptionHelpFormatter,
|
||
description="""\
|
||
Create large posters by printing and gluing together smaller pages.
|
||
|
||
This program is for situations when you want to create a large poster or banner
|
||
but do not have a printer that supports large sheets of paper. Plakativ allows
|
||
one to enlarge and split a PDF across multiple pages, creating another PDF with
|
||
pages of the desired printable size. After printing, the pages can be cut and
|
||
glued together to form a larger poster. Features:
|
||
|
||
- lossless operation
|
||
- no pixel artifacts when upscaling if PDF contains vector graphics
|
||
- GUI with preview functionality
|
||
- complex layouter to save paper
|
||
- optimize by number of pages, output poster size or multiple of input area
|
||
- support for raster images as input if img2pdf is available
|
||
|
||
Options:
|
||
""",
|
||
epilog="""\
|
||
Poster size:
|
||
There are three ways to set the size of the final poster. The desired method
|
||
is selected using the mutually exclusive options --size, --factor and
|
||
--maxpages. The --size option allows one to specify a width and height into
|
||
which the input will be fitted, swapping width and height as necessary, to
|
||
create the largest possible poster with those dimensions while keeping the
|
||
aspect ratio of the input. The --factor option scales the area of the input
|
||
by the given multiplier. If the input is a DIN A4 page, then a factor of 2
|
||
will create a DIN A3 poster. The --maxpages option allows one to specify a
|
||
maximum number of pages one is willing to print out and creates the largest
|
||
possible poster that can possibly be created with the given number of pages.
|
||
For example, printing a DIN A1 poster on DIN A4 pages with a border of 15 mm
|
||
will require 15 pages with the simple layouter engine. With --maxpages=15 a
|
||
slightly larger poster will be generated but will make better use of the
|
||
available number of pages of paper. Using the complex layouter, an even
|
||
bigger poster can be generated with just 15 pages of paper by changing the
|
||
orientation of some of them.
|
||
|
||
Paper sizes:
|
||
You can specify the short hand paper size names shown in the first column in
|
||
the table below as arguments to the --pagesize and --imgsize options. The
|
||
width and height they are mapping to is shown in the second column. Giving
|
||
the value in the second column has the same effect as giving the short hand
|
||
in the first column. The values are case insensitive.
|
||
|
||
%s
|
||
|
||
Borders, cutting and gluing:
|
||
The border on each page set using the --border option has two purposes.
|
||
Firstly, the border is useful for printers that do not support borderless
|
||
printing. Secondly, the border is the area where the individual pages overlap
|
||
and can be glued together. Before gluing, cut away the border area where the
|
||
printer was unable to print on. As long as you stay within the distance set
|
||
by the --border option, you don't need precision tools to do the cutting but
|
||
can cut freehand using a pair of scissors. You only need to cut the borders
|
||
from those edges that will end up being glued onto another piece of paper.
|
||
By keeping even the area at the border your printer could not print on from
|
||
the paper at the bottom you maintain a larger area for the glue.
|
||
|
||
Examples:
|
||
|
||
To run the tkinter GUI execute either:
|
||
|
||
$ plakativ-gui
|
||
$ plakativ --gui
|
||
|
||
To use plakativ without GUI from the command line you can run:
|
||
|
||
$ plakativ --size A1 --output=poster.pdf input.pdf
|
||
|
||
This will create a file poster.pdf with multiple DIN A4 pages which, after
|
||
being cut and glued together will form a DIN A1 poster of the content on the
|
||
first page of input.pdf.
|
||
|
||
If img2pdf is available as a Python module, then plakativ can also use raster
|
||
images as input. Since img2pdf refuses to work on images with an alpha channel,
|
||
you can instruct plakativ to remove the alpha channel for you with the
|
||
--remove-alpha flag:
|
||
|
||
$ plakativ --size A1 --output=poster.pdf --remove-alpha input.png
|
||
|
||
Written by Johannes Schauer Marin Rodrigues <josch@mister-muffin.de>
|
||
|
||
Report bugs at https://gitlab.mister-muffin.de/josch/plakativ/issues
|
||
"""
|
||
% rendered_papersizes,
|
||
)
|
||
parser.add_argument(
|
||
"-v",
|
||
"--verbose",
|
||
action="store_true",
|
||
help="Makes the program operate in verbose mode, printing messages on "
|
||
"standard error.",
|
||
)
|
||
parser.add_argument(
|
||
"-V",
|
||
"--version",
|
||
action="version",
|
||
version="%(prog)s " + VERSION,
|
||
help="Prints version information and exits.",
|
||
)
|
||
gui_group = parser.add_mutually_exclusive_group(required=False)
|
||
gui_group.add_argument(
|
||
"--gui",
|
||
dest="gui",
|
||
action="store_true",
|
||
help="run tkinter gui (default on Windows)",
|
||
)
|
||
gui_group.add_argument(
|
||
"--nogui",
|
||
dest="gui",
|
||
action="store_false",
|
||
help="don't run tkinter gui (default elsewhere)",
|
||
)
|
||
if platform.system() == "Windows":
|
||
parser.set_defaults(gui=True)
|
||
else:
|
||
parser.set_defaults(gui=False)
|
||
|
||
mode_group = parser.add_mutually_exclusive_group(required=False)
|
||
mode_group.add_argument(
|
||
"--size",
|
||
metavar="LxL",
|
||
dest="mode",
|
||
type=parse_pagesize_rectarg,
|
||
help="Poster width/height either as width times height or one of the "
|
||
"known paper sizes (see below). Cannot be used together with --factor "
|
||
"or --maxpages.",
|
||
)
|
||
mode_group.add_argument(
|
||
"--factor",
|
||
metavar="MULT",
|
||
dest="mode",
|
||
type=float,
|
||
help="Poster size as multiple of input page area. Cannot be used "
|
||
"together with --size or --maxpages.",
|
||
)
|
||
mode_group.add_argument(
|
||
"--maxpages",
|
||
metavar="NUM",
|
||
dest="mode",
|
||
type=int,
|
||
help="Maximum possible poster size with the given number of pages. "
|
||
"Cannot be used together with --size or --factor.",
|
||
)
|
||
|
||
parser.add_argument("-o", "--output", help="output filename (default: stdout)")
|
||
parser.add_argument("input", nargs="?", help="input filename (default: stdin)")
|
||
parser.add_argument(
|
||
"--pagenum",
|
||
type=int,
|
||
default=1,
|
||
help="Page number of input PDF to turn into a poster (default: 1)",
|
||
)
|
||
parser.add_argument(
|
||
"--pagesize",
|
||
metavar="LxL",
|
||
type=parse_pagesize_rectarg,
|
||
default=(210, 297),
|
||
help="Width and height of the output pages or one of the known paper "
|
||
"sizes (see below). This is the paper size that you are printing on "
|
||
"with your printer (default: A4)",
|
||
)
|
||
parser.add_argument(
|
||
"--border",
|
||
metavar="L[:L[:L[:L]]]",
|
||
type=parse_borderarg,
|
||
default=(15, 15, 15, 15),
|
||
help="The borders on each output page for gluing. This specifies how "
|
||
"much the pages overlap each other. If your printer cannot print "
|
||
"borderless, then this value should also be larger than the border up "
|
||
"to which your printer is able to print. The default unit is mm. "
|
||
"Other possible units are cm, in and pt. One value sets the border on "
|
||
"all four sides. Multiple values are separated by a colon. With two "
|
||
"values, the first value sets top and bottom border and the second "
|
||
"value sets left and right border. With three values, the first value "
|
||
"sets the top border, the second value the left and right border and "
|
||
"the third value the bottom border. Four values set top, right, "
|
||
"bottom and left borders in that order.",
|
||
)
|
||
parser.add_argument(
|
||
"--layouter",
|
||
choices=["simple", "complex"],
|
||
default="simple",
|
||
help="The algorithm arranging the individual pages making the poster. "
|
||
"The simple layout has all pages in the same orientation. The complex "
|
||
"layout is able to sometimes require less pages for the same poster "
|
||
"size and is allowed to rotate pages.",
|
||
)
|
||
parser.add_argument(
|
||
"--remove-alpha",
|
||
action="store_true",
|
||
help="When the input is a raster image instead of a PDF document, "
|
||
"plakativ can remove the alpha channel for you. The resulting PDF "
|
||
"poster might not be lossless anymore.",
|
||
)
|
||
parser.add_argument(
|
||
"--cover-page",
|
||
action="store_true",
|
||
help="Add a cover page as the first page which shows the resulting "
|
||
"layout. This is especially interesting for the complex layouter "
|
||
"unless you like puzzles.",
|
||
)
|
||
parser.add_argument(
|
||
"--cutting-guides",
|
||
action="store_true",
|
||
help="Print light-gray dashed lines that surround the visible part "
|
||
"of each page and can help with easier cutting and gluing of the "
|
||
"pages. This is generally only needed if the poster does not contain "
|
||
"enough detail for accurate gluing.",
|
||
)
|
||
parser.add_argument(
|
||
"--page-numbers",
|
||
action="store_true",
|
||
help="Print a small number of each page to uniquely identify each "
|
||
"sheet. This is especially useful in combination with --cover-page "
|
||
"because the numbers on the cover page correspond to the page numbers.",
|
||
)
|
||
parser.add_argument(
|
||
"--poster-border",
|
||
action="store_true",
|
||
help="If the poster itself has a white background and it is important "
|
||
"that the final result has precisely the desired poster size, then "
|
||
"this option will print a light-gray dashed border around the whole "
|
||
"poster, so that it can be accurately cut to the correct overall size.",
|
||
)
|
||
|
||
args = parser.parse_args()
|
||
|
||
if args.gui:
|
||
gui(args.input)
|
||
sys.exit(0)
|
||
|
||
if not args.input or args.input == "-":
|
||
args.input = sys.stdin.buffer
|
||
|
||
if not args.output or args.output == "-":
|
||
args.output = sys.stdout.buffer
|
||
|
||
if isinstance(args.mode, tuple):
|
||
mode = "size"
|
||
elif isinstance(args.mode, float):
|
||
mode = "mult"
|
||
elif isinstance(args.mode, int):
|
||
mode = "npages"
|
||
else:
|
||
print(
|
||
"Error: must supply one of --size, --factor or --maxpages\n",
|
||
file=sys.stderr,
|
||
)
|
||
parser.print_usage(sys.stderr)
|
||
sys.exit(1)
|
||
|
||
compute_layout(
|
||
args.input,
|
||
args.output,
|
||
mode,
|
||
pagenr=args.pagenum - 1, # zero based
|
||
pagesize=args.pagesize,
|
||
border=args.border,
|
||
strategy=args.layouter,
|
||
**{mode: args.mode},
|
||
remove_alpha=args.remove_alpha,
|
||
cover=args.cover_page,
|
||
guides=args.cutting_guides,
|
||
numbers=args.page_numbers,
|
||
poster_border=args.poster_border,
|
||
)
|
||
|
||
|
||
if __name__ == "__main__":
|
||
main()
|
||
|
||
__all__ = ["Plakativ", "compute_layout", "simple_cover", "complex_cover"]
|