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Text editor on PyQt Framework.py
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Text editor on PyQt Framework.py
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import sys
from PyQt4 import QtGui, QtCore
from PyQt4.QtCore import Qt
class Main(QtGui.QMainWindow):
def __init__(self,parent = None):
QtGui.QMainWindow.__init__(self,parent)
self.filename = ""
self.initUI()
def initToolbar(self):
self.newAction = QtGui.QAction(QtGui.QIcon("icons/new.png"),"New",self)
self.newAction.setShortcut("Ctrl+N")
self.newAction.setStatusTip("Create a new document")
self.newAction.triggered.connect(self.new)
self.openAction = QtGui.QAction(QtGui.QIcon("icons/open.png"),"Open file",self)
self.openAction.setStatusTip("Open existing document")
self.openAction.setShortcut("Ctrl+O")
self.openAction.triggered.connect(self.open)
self.saveAction = QtGui.QAction(QtGui.QIcon("icons/save.png"),"Save",self)
self.saveAction.setStatusTip("Save document")
self.saveAction.setShortcut("Ctrl+S")
self.saveAction.triggered.connect(self.save)
self.printAction = QtGui.QAction(QtGui.QIcon("icons/print.png"),"Print document",self)
self.printAction.setStatusTip("Print document")
self.printAction.setShortcut("Ctrl+P")
self.printAction.triggered.connect(self.printHandler)
self.previewAction = QtGui.QAction(QtGui.QIcon("icons/preview.png"),"Page view",self)
self.previewAction.setStatusTip("Preview page before printing")
self.previewAction.setShortcut("Ctrl+Shift+P")
self.previewAction.triggered.connect(self.preview)
self.cutAction = QtGui.QAction(QtGui.QIcon("icons/cut.png"),"Cut to clipboard",self)
self.cutAction.setStatusTip("Delete and copy text to clipboard")
self.cutAction.setShortcut("Ctrl+X")
self.cutAction.triggered.connect(self.text.cut)
self.copyAction = QtGui.QAction(QtGui.QIcon("icons/copy.png"),"Copy to clipboard",self)
self.copyAction.setStatusTip("Copy text to clipboard")
self.copyAction.setShortcut("Ctrl+C")
self.copyAction.triggered.connect(self.text.copy)
self.pasteAction = QtGui.QAction(QtGui.QIcon("icons/paste.png"),"Paste from clipboard",self)
self.pasteAction.setStatusTip("Paste text from clipboard")
self.pasteAction.setShortcut("Ctrl+V")
self.pasteAction.triggered.connect(self.text.paste)
self.undoAction = QtGui.QAction(QtGui.QIcon("icons/undo.png"),"Undo last action",self)
self.undoAction.setStatusTip("Undo last action")
self.undoAction.setShortcut("Ctrl+Z")
self.undoAction.triggered.connect(self.text.undo)
self.redoAction = QtGui.QAction(QtGui.QIcon("icons/redo.png"),"Redo last undone thing",self)
self.redoAction.setStatusTip("Redo last undone thing")
self.redoAction.setShortcut("Ctrl+Y")
self.redoAction.triggered.connect(self.text.redo)
bulletAction = QtGui.QAction(QtGui.QIcon("icons/bullet.png"),"Insert bullet List",self)
bulletAction.setStatusTip("Insert bullet list")
bulletAction.setShortcut("Ctrl+Shift+B")
bulletAction.triggered.connect(self.bulletList)
numberedAction = QtGui.QAction(QtGui.QIcon("icons/number.png"),"Insert numbered List",self)
numberedAction.setStatusTip("Insert numbered list")
numberedAction.setShortcut("Ctrl+Shift+L")
numberedAction.triggered.connect(self.numberList)
self.toolbar = self.addToolBar("Options")
self.toolbar.addAction(self.newAction)
self.toolbar.addAction(self.openAction)
self.toolbar.addAction(self.saveAction)
self.toolbar.addSeparator()
self.toolbar.addAction(self.printAction)
self.toolbar.addAction(self.previewAction)
self.toolbar.addSeparator()
self.toolbar.addAction(self.cutAction)
self.toolbar.addAction(self.copyAction)
self.toolbar.addAction(self.pasteAction)
self.toolbar.addAction(self.undoAction)
self.toolbar.addAction(self.redoAction)
self.toolbar.addSeparator()
self.toolbar.addAction(bulletAction)
self.toolbar.addAction(numberedAction)
# Makes the next toolbar appear underneath this one
self.addToolBarBreak()
def initFormatbar(self):
self.formatbar = self.addToolBar("Format")
def initMenubar(self):
menubar = self.menuBar()
file = menubar.addMenu("File")
edit = menubar.addMenu("Edit")
file.addAction(self.newAction)
file.addAction(self.openAction)
file.addAction(self.saveAction)
file.addAction(self.printAction)
file.addAction(self.previewAction)
edit.addAction(self.undoAction)
edit.addAction(self.redoAction)
edit.addAction(self.cutAction)
edit.addAction(self.copyAction)
edit.addAction(self.pasteAction)
def initUI(self):
self.text = QtGui.QTextEdit(self)
self.initToolbar()
self.initFormatbar()
self.initMenubar()
# Set the tab stop width to around 33 pixels which is
# about 8 spaces
self.text.setTabStopWidth(33)
self.setCentralWidget(self.text)
# Initialize a statusbar for the window
self.statusbar = self.statusBar()
# If the cursor position changes, call the function that displays
# the line and column number
self.text.cursorPositionChanged.connect(self.cursorPosition)
# x and y coordinates on the screen, width, height
self.setGeometry(100,100,1030,800)
self.setWindowTitle("My Text Editor")
self.setWindowIcon(QtGui.QIcon("icons/Editor.png"))
def new(self):
spawn = Main(self)
spawn.show()
def open(self):
# Get filename and show only .writer files
self.filename = QtGui.QFileDialog.getOpenFileName(self, 'Open File',".","(*.writer)")
if self.filename:
with open(self.filename,"rt") as file:
self.text.setText(file.read())
def save(self):
# Only open dialog if there is no filename yet
if not self.filename:
self.filename = QtGui.QFileDialog.getSaveFileName(self, 'Save File')
# Append extension if not there yet
if not self.filename.endswith(".writer"):
self.filename += ".writer"
# We just store the contents of the text file along with the
# format in html, which Qt does in a very nice way for us
with open(self.filename,"wt") as file:
file.write(self.text.toHtml())
def preview(self):
# Open preview dialog
preview = QtGui.QPrintPreviewDialog()
# If a print is requested, open print dialog
preview.paintRequested.connect(lambda p: self.text.print_(p))
preview.exec_()
def printHandler(self):
# Open printing dialog
dialog = QtGui.QPrintDialog()
if dialog.exec_() == QtGui.QDialog.Accepted:
self.text.document().print_(dialog.printer())
def cursorPosition(self):
cursor = self.text.textCursor()
# Mortals like 1-indexed things
line = cursor.blockNumber() + 1
col = cursor.columnNumber()
self.statusbar.showMessage("Line: {} | Column: {}".format(line,col))
def bulletList(self):
cursor = self.text.textCursor()
# Insert bulleted list
cursor.insertList(QtGui.QTextListFormat.ListDisc)
def numberList(self):
cursor = self.text.textCursor()
# Insert list with numbers
cursor.insertList(QtGui.QTextListFormat.ListDecimal)
def main():
app = QtGui.QApplication(sys.argv)
main = Main()
main.show()
sys.exit(app.exec_())
if __name__ == "__main__":
main()