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#!/usr/bin/env python3
from pyUIClass.labelTextEditor import Ui_Dialog
import PyQt5.QtWidgets as QtWidgets
import PyQt5.QtSvg as QtSvg
import PyQt5.QtGui as QtGui
import PyQt5.QtCore as QtCore
import xasyArgs as xasyArgs
import xasy2asy as xasy2asy
import xasyOptions as xasyOptions
import xasyUtils as xasyUtils
import subprocess
import tempfile
import uuid
import os
import io
class labelEditor(QtWidgets.QDialog):
def __init__(self, text=''):
super().__init__()
self.ui = Ui_Dialog()
self.ui.setupUi(self)
self.ui.btnAccept.clicked.connect(self.accept)
self.ui.btnCancel.clicked.connect(self.reject)
self.ui.chkMathMode.stateChanged.connect(self.chkMathModeChecked)
self.ui.btnPreview.clicked.connect(self.btnPreviewOnClick)
self.ui.btnGetText.clicked.connect(self.btnGetTextOnClick)
self.svgPreview = None
self.initializeText(text)
def initializeText(self, text: str):
if text[0] == '$' and text[-1] == '$':
self.ui.chkMathMode.setChecked(True)
text = text.strip('$')
if text.startswith('\\displaystyle{'):
self.ui.cmbMathStyle.setCurrentText('Display Style')
text = text.rstrip('}')
text = text.replace('\\displaystyle{', '', 1)
elif text.startswith('\\scriptstyle{'):
self.ui.cmbMathStyle.setCurrentText('Script Style')
text = text.rstrip('}')
text = text.replace('\\scriptstyle{', '', 1)
self.ui.txtLabelEdit.setPlainText(text)
def chkMathModeChecked(self, checked):
self.ui.cmbMathStyle.setEnabled(checked)
def getText(self):
rawText = self.ui.txtLabelEdit.toPlainText()
rawText.replace('\n', ' ')
if self.ui.chkMathMode.isChecked():
prefix = ''
suffix = ''
if self.ui.cmbMathStyle.currentText() == 'Display Style':
prefix = '\\displaystyle{'
suffix = '}'
elif self.ui.cmbMathStyle.currentText() == 'Script Style':
prefix = '\\scriptstyle{'
suffix = '}'
return '${0}{1}{2}$'.format(prefix, rawText, suffix)
else:
return rawText
def btnPreviewOnClick(self):
path = xasyArgs.getArgs().asypath
if path is None:
opt = xo.BasicConfigs.defaultOpt
path = opt['asyPath']
asyInput = """
frame f;
label(f, "{0}");
write(min(f), newl);
write(max(f), newl);
shipout(f);
"""
self.svgPreview = QtSvg.QSvgRenderer()
with tempfile.TemporaryDirectory(prefix='xasylbl_') as tmpdir:
id = str(uuid.uuid4())
tmpFile = os.path.join(tmpdir, 'lbl-{0}.svg'.format(id))
with subprocess.Popen(args=[path, '-fsvg', '-o', tmpFile, '-'], encoding='utf-8', stdin=subprocess.PIPE,
stdout=subprocess.PIPE) as asy:
asy.stdin.write(asyInput.format(self.getText()))
asy.stdin.close()
out = asy.stdout.read()
raw_array = out.splitlines()
bounds_1, bounds_2 = [val.strip() for val in raw_array]
min_bounds = xasyUtils.listize(bounds_1, (float, float))
max_bounds = xasyUtils.listize(bounds_2, (float, float))
new_rect = self.processBounds(min_bounds, max_bounds)
self.svgPreview.load(tmpFile)
self.drawPreview(new_rect)
def drawPreview(self, naturalBounds):
img = QtGui.QPixmap(self.ui.lblLabelPreview.size())
img.fill(QtGui.QColor.fromRgbF(1, 1, 1, 1))
if self.svgPreview is None:
pass
else:
with QtGui.QPainter(img) as pnt:
scale_ratio = self.getIdealScaleRatio(naturalBounds, self.ui.lblLabelPreview.rect())
pnt.translate(self.ui.lblLabelPreview.rect().center())
pnt.scale(scale_ratio, scale_ratio)
self.svgPreview.render(pnt, naturalBounds)
self.ui.lblLabelPreview.setPixmap(img)
def getIdealScaleRatio(self, rect, boundsRect):
assert isinstance(rect, (QtCore.QRect, QtCore.QRectF))
assert isinstance(rect, (QtCore.QRect, QtCore.QRectF))
magic_ratio = 0.50
idealRatioHeight = (magic_ratio * boundsRect.height()) / rect.height()
magicRatioWidth = 0.50
if idealRatioHeight * rect.width() > magicRatioWidth * boundsRect.width():
idealRatioWidth = (magicRatioWidth * boundsRect.width()) / rect.width()
idealRatio = min(idealRatioHeight, idealRatioWidth)
else:
idealRatio = idealRatioHeight
return idealRatio
def processBounds(self, minPt, maxPt):
p1x, p1y = minPt
p2x, p2y = maxPt
minPt = QtCore.QPointF(p1x, p1y)
maxPt = QtCore.QPointF(p2x, p2y)
newRect = QtCore.QRectF(minPt, maxPt)
return newRect
def btnGetTextOnClick(self):
msgbox = QtWidgets.QMessageBox()
msgbox.setText('Text Preview:\n' + self.getText())
msgbox.setWindowTitle('Text preview')
msgbox.show()
return msgbox.exec_()
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