Fix printing text window with custom/unknown paper sizes #404

# to view logs

	name: Linux Build & Unit Tests
	on: [push]

	jobs:
	build:
	name: ubuntu-build
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	with:
	submodules: recursive

	- name: install wxwidgets
	run: \|
	export DISPLAY=:0.0
	sudo apt install xvfb cmake libtbb-dev libgtk-3-0 libgtk-3-dev
	git clone https://github.com/wxWidgets/wxWidgets.git --recurse-submodules
	cd wxWidgets
	cmake . -DCMAKE_INSTALL_PREFIX=./wxlib -DwxBUILD_SHARED=OFF
	cmake --build . --target install -j4

	- name: build
	run: \|
	cd ..
	cd Wisteria-Dataviz
	cmake ./
	cmake --build . -j4

	- name: run tests
	run: \|
	cd ..
	git clone https://github.com/catchorg/Catch2.git
	cd Wisteria-Dataviz/tests
	cmake ./
	make -j4
	cd bin
	./WisteriaTestRunner --reporter JUnit::out=WDV-junit.xml
	cat WDV-junit.xml
	errors=$(cat WDV-junit.xml \| grep -Po '(errors)="\K[^"]*')
	failures=$(cat WDV-junit.xml \| grep -Po '(failures)="\K[^"]*')
	echo "Error count is: ${errors}"
	echo "Failure count is: ${failures}"
	if [ "$errors" -gt 0 ]; then
	exit 1
	fi
	if [ "$failures" -gt 0 ]; then
	exit 1
	fi

Provide feedback