Starting latex rendering

This commit is contained in:
Adsooi 2022-03-05 18:19:20 +01:00
parent 1c0850a200
commit 23cd86a2e3
Signed by: Ad5001
GPG key ID: EF45F9C6AFE20160
3 changed files with 78 additions and 0 deletions
LogarithmPlotter
logarithmplotter.py
qml/eu/ad5001/LogarithmPlotter/Setting
util

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@ -46,6 +46,7 @@ from LogarithmPlotter import __VERSION__
from LogarithmPlotter.util import config, native from LogarithmPlotter.util import config, native
from LogarithmPlotter.util.update import check_for_updates from LogarithmPlotter.util.update import check_for_updates
from LogarithmPlotter.util.helper import Helper from LogarithmPlotter.util.helper import Helper
from LogarithmPlotter.util.latex import Latex
config.init() config.init()
@ -107,6 +108,7 @@ def run():
engine = QQmlApplicationEngine() engine = QQmlApplicationEngine()
global tmpfile global tmpfile
helper = Helper(pwd, tmpfile) helper = Helper(pwd, tmpfile)
latex = Latex(tempdir, app.palette())
engine.rootContext().setContextProperty("Helper", helper) engine.rootContext().setContextProperty("Helper", helper)
engine.rootContext().setContextProperty("TestBuild", "--test-build" in argv) engine.rootContext().setContextProperty("TestBuild", "--test-build" in argv)
engine.rootContext().setContextProperty("StartTime", dep_time) engine.rootContext().setContextProperty("StartTime", dep_time)

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@ -1,3 +1,21 @@
/**
* LogarithmPlotter - 2D plotter software to make BODE plots, sequences and distribution functions.
* Copyright (C) 2022 Ad5001
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
import QtQuick 2.12 import QtQuick 2.12
import QtQuick.Controls 2.12 import QtQuick.Controls 2.12
import QtQml.Models 2.12 import QtQml.Models 2.12

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@ -0,0 +1,58 @@
"""
* LogarithmPlotter - 2D plotter software to make BODE plots, sequences and distribution functions.
* Copyright (C) 2022 Ad5001
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
"""
from PySide2.QtCore import QObject, Slot
from PySide2.QtGui import QImage, QColor
from PySide2.QtWidgets import QApplication
from os import path
from sympy import preview
from tempfile import TemporaryDirectory
class Latex(QObject):
def __init__(self, tempdir: str, palette):
QObject.__init__(self)
self.tempdir = tempdir
self.palette = palette
fg = self.palette.windowText().color().convertTo(QColor.Rgb)
@Slot(str, float, bool, result=str)
def render(self, latexstring, font_size, themeFg = True):
exprpath = path.join(self.tempdir.name, str(hash(latexstring)) + '.png')
print(latexstring, exprpath)
if not path.exists(exprpath):
if themeFg:
fg = self.palette.windowText().color().convertTo(QColor.Rgb)
fg = f'rgb {fg.redF()} {fg.greenF()} {fg.blueF()}'
else:
fg = 'rgb 1.0 1.0 1.0'
preview('$$' + latexstring + '$$', viewer='file', filename=exprpath, dvioptions=[
"-T", "tight",
"-z", "0",
"--truecolor",
f"-D {font_size * 72.27 / 10}", # See https://linux.die.net/man/1/dvipng#-D for convertion
"-bg", "Transparent",
"-fg", fg],
euler=False)
return exprpath
@Slot(str)
def copyLatexImageToClipboard(self, latexstring):
global tempfile
clipboard = QApplication.clipboard()
clipboard.setImage(QImage(self.render(latexstring)))