def __init__(self, app):
"""
Setup GUI layout, connect event handlers.
"""
super(Main, self).__init__()
# Make sure cache exists
if not os.path.isdir(const.CACHE_PATH):
os.mkdir(const.CACHE_PATH)
# Ensure system requirements are met
self.checkDependancies()
# This is always the same
self.ui = Ui_MainWindow()
self.ui.setupUi(self)
# Change title, position
self.setWindowTitle('SemTeX')
self.move(200, 200)
# Connect event handlers
self.ui.push_refresh.clicked.connect(self.refresh)
self.ui.push_history.clicked.connect(self.saveToHistory)
self.ui.push_equation.clicked.connect(self.copyToClipboard)
self.ui.action_about.triggered.connect(self.showAbout)
self.ui.action_add_matrix.triggered.connect(self.showMatrix)
self.ui.action_add_frac.triggered.connect(self.showFrac)
# Keyboard shortcuts
QtGui.QShortcut(QtGui.QKeySequence("Ctrl+Q"), self, QtGui.qApp.quit)
QtGui.QShortcut(QtGui.QKeySequence("Ctrl+R"), self, self.refresh)
# Display application logo
self.displayPng()
# Access saved equations and set last equation in the editor text box
self.loadHistory()
self.setFromHistory(len(self.equation_history))
# Bind application clipboard
self.clipboard = app.clipboard()
class Main(QtGui.QMainWindow):
"""
Main window for the SemTeX Equation Editor.
"""
# Misc Variables
equation_history = [] # Buffer for saved equation strings
def __init__(self, app):
"""
Setup GUI layout, connect event handlers.
"""
super(Main, self).__init__()
# Make sure cache exists
if not os.path.isdir(const.CACHE_PATH):
os.mkdir(const.CACHE_PATH)
# Ensure system requirements are met
self.checkDependancies()
# This is always the same
self.ui = Ui_MainWindow()
self.ui.setupUi(self)
# Change title, position
self.setWindowTitle('SemTeX')
self.move(200, 200)
# Connect event handlers
self.ui.push_refresh.clicked.connect(self.refresh)
self.ui.push_history.clicked.connect(self.saveToHistory)
self.ui.push_equation.clicked.connect(self.copyToClipboard)
self.ui.action_about.triggered.connect(self.showAbout)
self.ui.action_add_matrix.triggered.connect(self.showMatrix)
self.ui.action_add_frac.triggered.connect(self.showFrac)
# Keyboard shortcuts
QtGui.QShortcut(QtGui.QKeySequence("Ctrl+Q"), self, QtGui.qApp.quit)
QtGui.QShortcut(QtGui.QKeySequence("Ctrl+R"), self, self.refresh)
# Display application logo
self.displayPng()
# Access saved equations and set last equation in the editor text box
self.loadHistory()
self.setFromHistory(len(self.equation_history))
# Bind application clipboard
self.clipboard = app.clipboard()
def refresh(self):
"""
Takes the equation from the self.teInput, compiles and converts to PNG.
"""
try:
# Clear statusbar
self.status()
# Read from self.teInput
eq = self.getInput()
# If it contains an equation...
if eq is not None:
# ... compile and display it...
self.generateLatex(eq)
self.compileLatex()
self.convertPng()
self.convertPng(const.PNG_TRANS, const.PNG_DISP_PATH)
self.cleanUp()
self.displayPng()
else:
# ... otherwise, display the semtex logo
self.displayPng()
except Exception, e:
raise e
