def license_(self):
lic = QTextEdit(self)
lic.setWindowFlags(Qt.Window)
lic.setWindowTitle("QReduce FreeBSD License")
font = lic.font()
font.setFamily('')
font.setFixedPitch(True)
font.setKerning(0)
font.setWeight(QFont.Normal)
font.setItalic(False)
lic.setFont(font)
lic.setText(
'Copyright (c) 2009-2014 T. Sturm, 2010 C. Zengler'
'<p>'
'All rights reserved.'
'<p>'
'Redistribution and use in source and binary forms, with '
'or without modification, are permitted provided that the '
'following conditions are met:'
'<ol>'
'<li>Redistributions of source code must retain the relevant '
'copyright notice, this list of conditions and the following '
'disclaimer. '
'<p>'
'<li>Redistributions in binary form must reproduce the above '
'copyright notice, this list of conditions and the following '
'disclaimer in the documentation and/or other materials '
'provided with the distribution. '
'</ol>'
'<p>'
'THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND '
'CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, '
'INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF '
'MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE '
'DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNERS OR '
'CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, '
'SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT '
'NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; '
'LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) '
'HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN '
'CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR '
'OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS '
'SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.'
'</span>')
lic.setReadOnly(True)
w = 66 * lic.fontMetrics().width('m')
h = 36 * lic.fontMetrics().height()
lic.resize(w,h)
lic.show()
lic.raise_()
class AppWindow(QMainWindow):
# =====================
# The Main Window Class
# =====================
def __init__(self):
# ====================
# Constructor Function
# ====================
QMainWindow.__init__(self)
self.setWindowTitle("Virtua Text Editor")
self.setGeometry(300, 300, 1024, 768)
QToolTip.setFont(QFont("Ubuntu", 10, QFont.Normal))
self.setToolTip('Application Window')
# ================================
# Function to setup menus, etc etc
# ================================
self.textEdit = QTextEdit()
self.textEdit.setFont(QFont("Ubuntu", 12, QFont.Normal))
self.setCentralWidget(self.textEdit)
self.create_menus()
self.create_actions()
self.fileMenu.addAction(self.newAction)
self.fileMenu.addAction(self.openAction)
self.fileMenu.addAction(self.saveAction)
self.fileMenu.addAction(self.saveasAction)
self.fileMenu.addSeparator()
self.fileMenu.addAction(self.printAction)
self.fileMenu.addSeparator()
self.fileMenu.addAction(self.exitAction)
self.editMenu.addAction(self.undoAction)
self.editMenu.addAction(self.redoAction)
self.editMenu.addAction(self.cutAction)
self.editMenu.addAction(self.copyAction)
self.editMenu.addAction(self.pasteAction)
self.editMenu.addSeparator()
self.editMenu.addAction(self.selectallAction)
self.editMenu.addAction(self.deselectallAction)
self.editMenu.addSeparator()
self.editMenu.addAction(self.findAction)
self.editMenu.addAction(self.findReplaceAction)
self.helpMenu.addAction(self.aboutAction)
self.app_status_bar = QStatusBar()
self.app_status_bar.showMessage('Ready, v0.2', 10000)
self.setStatusBar(self.app_status_bar)
self.create_toolbar()
self.toolbar.addAction(self.newAction)
self.toolbar.addSeparator()
self.toolbar.addAction(self.cutAction)
self.toolbar.addAction(self.copyAction)
self.toolbar.addAction(self.pasteAction)
self.toolbar.addSeparator()
self.toolbar.addAction(self.printAction)
self.toolbar.addSeparator()
self.toolbar.addAction(self.undoAction)
self.toolbar.addAction(self.redoAction)
self.toolbar.addSeparator()
self.toolbar.addAction(self.findAction)
self.toolbar.addAction(self.findReplaceAction)
def create_toolbar(self):
# ===============================
# Function to create the toolbar.
# ===============================
self.toolbar = self.addToolBar('Main')
self.toolbar.setToolButtonStyle(PySide.QtCore.Qt.ToolButtonTextUnderIcon)
def newfile(self):
self.textEdit.setText('')
# TODO: Create the file/open method
def openfile(self):
print "Open File Menu Selected"
# TODO: Create the file/save method
def savefile(self):
print "Save File Menu Selected"
# TODO: Create the file/saveas method
def saveasfile(self):
print "Save As File Menu Selected"
# TODO: Create the print method
def print_page(self):
print "Print Page Selected"
# TODO: Create the find method
def find_text(self):
print "Find text option selected"
# TODO: Create the replace method
def find_replace_text(self):
print "Replace text selected"
def create_actions(self):
# =========================================
# Function to create actions for menu items
# =========================================
self.newAction = QAction(QIcon('digital_assets/document-new.svg'), 'New', self)
self.newAction.setShortcut(QKeySequence.New)
self.newAction.setStatusTip("Create a New File")
self.newAction.setIconText("New")
self.newAction.triggered.connect(self.newfile)
self.openAction = QAction(QIcon('digital_assets/document-open.svg'), 'Open', self)
self.openAction.setShortcut(QKeySequence.Open)
self.openAction.setStatusTip("Open a file")
self.openAction.triggered.connect(self.openfile)
self.saveAction = QAction(QIcon('digital_assets/document-save.svg'), 'Save', self)
self.saveAction.setShortcut(QKeySequence.Save)
self.saveAction.setStatusTip("Save a file")
self.saveAction.triggered.connect(self.savefile)
self.saveasAction = QAction(QIcon('digital_assets/document-save-as.svg'), 'Save As', self)
self.saveasAction.setShortcut(QKeySequence.SaveAs)
self.saveasAction.setStatusTip("Save a File As....")
self.saveasAction.triggered.connect(self.saveasfile)
self.printAction = QAction(QIcon('digital_assets/document-print.svg'), 'Print', self)
self.printAction.setShortcut(QKeySequence.Print)
self.printAction.setStatusTip("Print")
self.printAction.triggered.connect(self.print_page)
self.exitAction = QAction(QIcon('digital_assets/application-exit.svg'), 'Exit', self)
self.exitAction.setShortcut(QKeySequence.Quit)
self.exitAction.setStatusTip("Exit the Application")
self.exitAction.triggered.connect(self.quit_application)
self.undoAction = QAction(QIcon('digital_assets/undo.svg'), 'Undo', self)
self.undoAction.setShortcut(QKeySequence.Undo)
self.undoAction.setStatusTip("Undo")
self.undoAction.triggered.connect(self.textEdit.undo)
self.redoAction = QAction(QIcon('digital_assets/redo.svg'), 'Redo', self)
self.redoAction.setShortcut(QKeySequence.Redo)
self.redoAction.setStatusTip("Redo")
self.redoAction.triggered.connect(self.textEdit.redo)
self.cutAction = QAction(QIcon('digital_assets/edit-cut.svg'), 'Cut', self)
self.cutAction.setShortcut(QKeySequence.Cut)
self.cutAction.setStatusTip("Cut")
self.cutAction.setEnabled(False)
self.cutAction.triggered.connect(self.textEdit.cut)
self.copyAction = QAction(QIcon('digital_assets/edit-copy.svg'), 'Copy', self)
self.copyAction.setShortcut(QKeySequence.Copy)
self.copyAction.setStatusTip("Copy")
self.copyAction.setEnabled(False)
self.copyAction.triggered.connect(self.textEdit.copy)
self.pasteAction = QAction(QIcon('digital_assets/edit-paste.svg'), 'Paste', self)
self.pasteAction.setShortcut(QKeySequence.Paste)
self.pasteAction.setStatusTip("Paste")
self.pasteAction.setEnabled(False)
self.pasteAction.triggered.connect(self.textEdit.paste)
self.selectallAction = QAction(QIcon('digital_assets/edit-select-all.svg'), 'Select All', self)
self.selectallAction.setShortcut(QKeySequence.SelectAll)
self.selectallAction.setStatusTip("Select All")
self.selectallAction.triggered.connect(self.textEdit.selectAll)
self.deselectallAction = QAction(QIcon('digital_assets/edit-select-all.svg'), 'Deselect All', self)
self.deselectallAction.setShortcut("Shift+Ctrl+A")
self.deselectallAction.setStatusTip("Deselect All")
self.deselectallAction.triggered.connect(self.deselect_all_text)
self.findAction = QAction(QIcon('digital_assets/edit-find.svg'), 'Find', self)
self.findAction.setShortcut(QKeySequence.Find)
self.findAction.setStatusTip("Find")
self.findAction.triggered.connect(self.find_text)
self.findReplaceAction = QAction(QIcon('digital_assets/edit-find-replace.svg'), 'Replace', self)
self.findReplaceAction.setShortcut(QKeySequence.Replace)
self.findReplaceAction.setShortcut("Replace")
self.findReplaceAction.triggered.connect(self.find_replace_text)
self.aboutAction = QAction(QIcon('digital_assets/AppIcon.png'), 'About', self)
self.aboutAction.setStatusTip("Displays info about the application")
self.aboutAction.triggered.connect(self.show_about)
def deselect_all_text(self):
text_cursor = self.textEdit.textCursor()
text_cursor.clearSelection()
self.textEdit.setTextCursor(text_cursor)
def create_menus(self):
# ================================
# Function to create the menu bar.
# ================================
self.fileMenu = self.menuBar().addMenu("File")
self.fileMenu.setFont(QFont("Ubuntu", 10, QFont.Normal))
self.editMenu = self.menuBar().addMenu("Edit")
self.editMenu.setFont(QFont("Ubuntu", 10, QFont.Normal))
self.helpMenu = self.menuBar().addMenu("Help")
self.helpMenu.setFont(QFont("Ubuntu", 10, QFont.Normal))
def set_icon(self):
# ===============================
# Function to set the Window Icon
# ===============================
appicon = QIcon('digital_assets/AppIcon.png')
self.setWindowIcon(appicon)
def quit_application(self):
# ================================
# Function to quit the application
# ================================
userinfo = QMessageBox.question(self, "Confirmation", "This will quit, Do you want to continue?",
QMessageBox.Yes | QMessageBox.No)
if userinfo == QMessageBox.Yes:
templateApp.quit()
if userinfo == QMessageBox.No:
pass
def show_about(self):
QMessageBox.about(self, "About Virtua Text Editor",
"<b><h3>Virtua Text Editor</h3></b>"
"<p><h4>Virtua Text Editor has been written to serve as a template"
" that can be used as a basis for creating a working application."
" All of the components that make up the core functions of an"
" application, the main window, a status bar, menus and dialogs"
" are provided here as a basis for writing something new and interesting</h4></p>")
def center_application(self):
# ============================================
# Function to center the Application on screen
# ============================================
qrect = self.frameGeometry()
centerpoint = QDesktopWidget().availableGeometry().center()
qrect.moveCenter(centerpoint)
self.move(qrect.topLeft())
class MainWindow(QMainWindow):
def __init__(self):
# QMainWindow.__init__(self)
super().__init__() # use super() to avoid explicit dependency on the base class name
# Note: must not pass the self reference to __init__ in this case!
self.resize(800, 600)
# Create the main content widget
mainWidget = QWidget(self)
self.setCentralWidget(mainWidget)
# Create a text component at the top area of the main widget
self.output = QTextEdit(mainWidget)
self.output.setReadOnly(True)
self.output.setLineWrapMode(QTextEdit.NoWrap);
# set the font
font = self.output.font()
font.setFamily("Courier")
font.setPointSize(10)
self.output.setFont(font)
# Set the background color
# self.output.setTextBackgroundColor(Qt.red) # Only sets the background color for the text itself, not for the whole widget
pal = self.output.palette()
pal.setColor(QPalette.Base, Qt.black)
self.output.setPalette(pal)
mainLayout = QVBoxLayout(mainWidget)
mainLayout.addWidget(self.output)
# Create buttons in a grid layout below the top area
buttonWidget = QWidget(mainWidget)
self.buttonLayout = QGridLayout(buttonWidget)
mainLayout.addWidget(buttonWidget)
# Add some buttons to execute python code
self.row = 0
self.column = 0
self.addButton("Clear console", lambda : self.output.clear())
self.newRow()
# Add buttons for all the examples - attention: do not make "examples"
# a local variable - otherwise, the Examples object would be destroyed
# at the end of __init__ !!!
self.examples = samplePackage.SampleModule.Examples(self)
for example in self.examples.getExamples():
if example is None:
self.newRow()
else:
self.addButton(example.label, example.function)
# In a Python program, sys.excepthook is called just before the program exits.
# So we can catch all fatal, uncaught exceptions and log them.
# NOTE: we must be sure not to set the excepthook BEFORE we an actually
# log something!!
sys.excepthook = self.logException
self.writelnColor(Qt.magenta,
"Python version: {0}.{1}.{2} ({3})".format(
sys.version_info[0],
sys.version_info[1],
sys.version_info[2],
sys.version_info[3]))
self.writelnColor(Qt.magenta,
"Qt version : {0}".format(qVersion()))
def logException(self, exctype, value, tb):
self.writelnColor(Qt.red,
("\nFATAL ERROR: Uncaught exception\n"
" {}: {}\n"
"{}\n".format(exctype.__name__, value, ''.join(traceback.format_tb(tb)))) )
def addButton(self, label, function):
theButton = QPushButton(label)
theButton.clicked.connect(function)
self.buttonLayout.addWidget(theButton, self.row, self.column)
self.column += 1
def newRow(self):
self.row += 1
self.column = 0
def writeColor(self, color, *text):
theText = ' '.join(map(str, text))
self.output.setTextColor(color)
# Note: append() adds a new paragraph!
#self.output.append(theText)
self.output.textCursor().movePosition(QTextCursor.End)
self.output.insertPlainText(theText)
# scroll console window to bottom
sb = self.output.verticalScrollBar()
sb.setValue(sb.maximum())
def write(self, *text):
self.writeColor(Qt.green, *text)
def writelnColor(self, color, *text):
self.writeColor(color, *text)
self.write('\n')
def writeln(self, *text):
self.writelnColor(Qt.green, *text)
class QLogger(logging.Handler):
'''Code from:
https://stackoverflow.com/questions/28655198/best-way-to-display-logs-in-pyqt
'''
def __init__(self,
parent=None,
format=settings.log_fmt,
level=logging.INFO):
logging.Handler.__init__(self)
# Initialize a log handler as the super class
self.setFormatter(logging.Formatter(format))
# Set the formatter for the logger
self.setLevel(level)
# Set the logging level
self.frame = QFrame(parent)
# Initialize a QFrame to place other widgets in
self.frame2 = QFrame(parent)
# Initialize frame2 for the label and checkbox
self.label = QLabel('Logs')
# Define a label for the frame
self.check = QCheckBox('Debugging')
# Checkbox to enable debugging logging
self.check.clicked.connect(self.__changeLevel)
# Connect checkbox clicked to the __changeLevel method
self.log_widget = QTextEdit()
# Initialize a QPlainTextWidget to write logs to
self.log_widget.verticalScrollBar().minimum()
# Set a vertical scroll bar on the log widget
self.log_widget.horizontalScrollBar().minimum()
# Set a horizontal scroll bar on the log widget
self.log_widget.setLineWrapMode(self.log_widget.NoWrap)
# Set line wrap mode to no wrapping
self.log_widget.setFont(QFont("Courier", 12))
# Set the font to a monospaced font
self.log_widget.setReadOnly(True)
# Set log widget to read only
layout = QHBoxLayout()
# Initialize a horizontal layout scheme for the label and checkbox frame
layout.addWidget(self.label)
# Add the label to the layout scheme
layout.addWidget(self.check)
# Add the checkbox to the layout scheme
self.frame2.setLayout(layout)
# Set the layout for frame to the horizontal layout
layout = QVBoxLayout()
# Initialize a layout scheme for the widgets
layout.addWidget(self.frame2)
# Add the label/checkbox frame to the layout scheme
layout.addWidget(self.log_widget)
# Add the text widget to the layout scheme
self.frame.setLayout(layout)
# Set the layout of the fram to the layout scheme defined
##############################################################################
def emit(self, record):
'''
Overload the emit method so that it prints to the text widget
'''
msg = self.format(record)
# Format the message for logging
if record.levelno >= logging.CRITICAL: # If the log level is critical
self.log_widget.setTextColor(Qt.red)
# Set text color to red
elif record.levelno >= logging.ERROR: # Elif level is error
self.log_widget.setTextColor(Qt.darkMagenta)
# Set text color to darkMagenta
elif record.levelno >= logging.WARNING: # Elif level is warning
self.log_widget.setTextColor(Qt.darkCyan)
# Set text color to darkCyan
else: # Else
self.log_widget.setTextColor(Qt.black)
# Set text color to black
self.log_widget.append(msg)
# Add the log to the text widget
##############################################################################
def write(self, m):
'''
Overload the write method so that it does nothing
'''
pass
##############################################################################
def __changeLevel(self, *args):
'''
Private method to change logging level
'''
if self.check.isChecked():
self.setLevel(logging.DEBUG)
# Get the Meso1819 root logger and add the handler to it
else:
self.setLevel(logging.INFO)
