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from matplotlib.figure import Figure |
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from matplotlib.backends.backend_qt5agg import FigureCanvasQTAgg as FigureCanvas |
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from PyQt5 import QtWidgets |
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from visma.io.tokenize import removeSpaces, getTerms, normalize, tokenizeSymbols, removeUnary, getToken, getLHSandRHS |
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from visma.io.checks import checkEquation, checkTypes |
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from visma.io.parser import tokensToLatex |
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from visma.simplify.simplify import simplify, simplifyEquation |
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from visma.gui import logger |
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def quickSimplify(workspace): |
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"""Dynamic simplifier for simplifying expression as it is being typed |
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Arguments: |
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workspace {QtWidgets.QWidget} -- main layout |
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Returns: |
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qSolution/log {string} -- quick solution or error log |
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enableInteraction {bool} -- if False disables 'visma'(interaction) button |
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""" |
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logger.setLogName('qsolver') |
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logger.setLevel(0) |
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qSolution = "" |
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strIn = workspace.textedit.toPlainText() |
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cleanInput = removeSpaces(strIn) |
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if ';' in cleanInput: |
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return "", True, True |
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terms = getTerms(cleanInput) |
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normalizedTerms = normalize(terms) |
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symTokens = tokenizeSymbols(normalizedTerms) |
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normalizedTerms, symTokens = removeUnary(normalizedTerms, symTokens) |
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if checkEquation(normalizedTerms, symTokens) is True and strIn != "": |
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if symTokens and symTokens[-1] is not False: |
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tokens = getToken(normalizedTerms, symTokens) |
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tokens = tokens.tokens |
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lhs, rhs = getLHSandRHS(tokens) |
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_, solutionType = checkTypes(lhs, rhs) |
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lhs, rhs = getLHSandRHS(tokens) |
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if solutionType == 'expression': |
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_, _, _, equationTokens, _ = simplify(tokens) |
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qSolution = r'$ ' + '= \ ' |
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else: |
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_, _, _, _, equationTokens, _ = simplifyEquation(lhs, rhs) |
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qSolution = r'$ ' + '\Rightarrow \ ' |
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qSolution += tokensToLatex(equationTokens[-1]) + ' $' |
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return qSolution, True, False |
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elif symTokens: |
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log = "Invalid Expression" |
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workspace.logBox.append(logger.error(log)) |
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return log, False, _ |
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else: |
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log = "" |
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workspace.logBox.append(logger.error(log)) |
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return log, False, _ |
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else: |
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log = "" |
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if strIn != "": |
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_, log = checkEquation(normalizedTerms, symTokens) |
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workspace.logBox.append(logger.error(log)) |
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return log, False, _ |
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def qSolveFigure(workspace): |
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"""GUI layout for quick simplifier |
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Arguments: |
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workspace {QtWidgets.QWidget} -- main layout |
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Returns: |
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qSolLayout {QtWidgets.QVBoxLayout} -- quick simplifier layout |
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""" |
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bg = workspace.palette().window().color() |
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bgcolor = (bg.redF(), bg.greenF(), bg.blueF()) |
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workspace.qSolveFigure = Figure(edgecolor=bgcolor, facecolor=bgcolor) |
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workspace.solcanvas = FigureCanvas(workspace.qSolveFigure) |
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workspace.qSolveFigure.clear() |
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qSolLayout = QtWidgets.QVBoxLayout() |
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qSolLayout.addWidget(workspace.solcanvas) |
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return qSolLayout |
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def renderQuickSol(workspace, log, showQSolver): |
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"""Renders quick solution in matplotlib figure |
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Arguments: |
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workspace {QtWidgets.QWidget} -- main layout |
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""" |
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if showQSolver is True: |
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quickSolution = log |
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else: |
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quickSolution = "" |
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workspace.qSolveFigure.suptitle(quickSolution, x=0.01, |
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horizontalalignment='left', |
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verticalalignment='top') |
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workspace.solcanvas.draw() |
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