First Commit

.gitignore

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+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+.hypothesis/
+.pytest_cache/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# pyenv
+.python-version
+
+# celery beat schedule file
+celerybeat-schedule
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/

Card2PDF/CardPDFWriter.py

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+from PyQt5.QtCore import QFile, QIODevice, QSizeF, QMarginsF
+from PyQt5.QtGui import QPainter, QPdfWriter, QPageSize, QPen
+
+from enum import Enum
+
+def assert_file_open(func):
+    def wrapper(obj, *args, **kwargs):
+        if not obj.isOpen():
+            raise ValueError("PDF file is closed")
+        return func(obj, *args, **kwargs)
+    return wrapper
+
+class CardPDFWriter:
+    RESOLUTION = 300 # 300dpi
+
+    @staticmethod
+    def mm2pix(args):
+        return [x*(CardPDFWriter.RESOLUTION/25.4) for x in args]
+
+    def __init__(self, file_name, card_format, paper_format, separation=[0.8, 0.8]):
+        self.cardFormat = self.mm2pix(card_format)
+        self.paperFormat = self.mm2pix(paper_format)
+        self.separation = self.mm2pix(separation)
+        self.paperFormatMM = paper_format
+        self.file = QFile(str(file_name))
+        self.file.open(QIODevice.WriteOnly)
+
+        self.writer = QPdfWriter(self.file)
+        self.writer.setResolution(self.RESOLUTION)
+        self.writer.setPageSizeMM(QSizeF(*self.paperFormatMM))
+        self.writer.setPageMargins(QMarginsF(0, 0, 0, 0))
+
+        self.painter = QPainter(self.writer)
+        self.pen = QPen()
+        self.pen.setWidth(self.mm2pix([1])[0])
+        self.painter.setPen(self.pen)
+
+        self.bleeding = [0,0]
+        self.bleeding[0] = (self.paperFormat[0] % int(self.cardFormat[0] + self.separation[0]))/2
+        self.bleeding[1] = (self.paperFormat[1] % int(self.cardFormat[1] + self.separation[1]))/2
+        self.cursor = self.bleeding[:]
+
+        self._setupPage()
+
+    def _setupPage(self):
+        # self.writer.setPageSizeMM(QSizeF(*self.paperFormatMM))
+        # self.writer.setPageMargins(QMarginsF(0, 0, 0, 0))
+        # Horizontal lines
+        pos = self.bleeding[0] - self.separation[0]/2
+        while (pos < self.paperFormat[0]):
+            self.painter.drawLine(pos, 0, pos, self.paperFormat[1])
+            pos += self.cardFormat[0] + self.separation[0]
+
+        # Vertical lines
+        pos = self.bleeding[1] - self.separation[1]/2
+        while (pos < self.paperFormat[1]):
+            self.painter.drawLine(0, pos, self.paperFormat[0], pos)
+            pos += self.cardFormat[1] + self.separation[1]
+
+    @assert_file_open
+    def addPage(self):
+        self.writer.newPage()
+        self._setupPage()
+
+    @assert_file_open
+    def addCard(self, card, num_copies):
+        for _ in range(num_copies):
+            if self.cursor[1] > (self.paperFormat[1] - self.bleeding[1] - self.cardFormat[1]):
+                self.cursor = self.bleeding[:]
+                self.addPage()
+
+            self.painter.drawPixmap(*self.cursor, *self.cardFormat, card)
+            self.cursor[0] += self.cardFormat[0] + self.separation[0]
+
+            if self.cursor[0] > (self.paperFormat[0] - self.bleeding[0] - self.cardFormat[0]):
+                self.cursor[0] = self.bleeding[0]
+                self.cursor[1] += self.cardFormat[1] + self.separation[1]
+
+
+    @assert_file_open
+    def close(self):
+        self.painter.end()
+        self.file.flush()
+        self.file.close()
+
+    def isOpen(self): return self.file.isOpen()