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textEditor.py
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textEditor.py
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#!/usr/bin/python
# Text - Editor
from ext import *
import sys
from PyQt4.QtGui import *
from PyQt4.QtCore import *
class Editor(QMainWindow):
def __init__(self, parent=None):
QMainWindow.__init__(self, parent)
self.filenm = ""
self.updateUI()
def updateUI(self):
# set text area
self.textArea = QTextEdit()
self.setCentralWidget(self.textArea)
# UPDATING TOOLBAR
self.toolbar = self.addToolBar("Text Actions")
self.updateToolBar()
# UPDATING FORMATBAR
self.formatBar = self.addToolBar("Format")
self.updateFormatBar()
# UPDATING MENUBAR
self.menubar = self.menuBar()
self.updateMenuBar()
# UPDATING STATUSBAR
self.statusBar = self.statusBar()
self.updateStatusBar()
self.resize(1030, 800)
self.move(100, 100)
self.textArea.setTabStopWidth(33) # 8 spaces
self.setWindowIcon(QIcon("icons/icon.png"))
self.setWindowTitle("Text Editor")
def updateStatusBar(self):
self.statusBar.setSizeGripEnabled(True)
# ADDING SLIDER FOR ZOOM
self.zoomSlider = QSlider(Qt.Horizontal, self.statusBar)
self.zoomSlider.setTickPosition(QSlider.TicksAbove)
self.zoomSlider.setTickInterval(10)
# SETTING DEFAULT VALUE
self.zoomSlider.setValue(80)
# SETTING RANGE OF SLIDER
self.zoomSlider.setRange(60, 100)
# STORES THE CURRENT VALUE OF ZOOM
self.curZoomValue = 80
# TO DISPLAY WORD AND SYMBOL COUNT
self.countLabel = QLabel(self)
self.positionLabel = QLabel(self)
self.emptyLabel = QLabel(self)
self.statusBar.insertPermanentWidget(0, self.emptyLabel, 10)
self.statusBar.insertPermanentWidget(1, self.positionLabel, 10)
self.statusBar.insertPermanentWidget(2, self.countLabel, 10)
self.statusBar.insertPermanentWidget(3, self.zoomSlider, 4)
# CALCULATES AND DISPLAYS CURSER POSITION
self.cursorPosition()
# TO STORE IF ANY CHANGES ARE MADE IN OPENED FILE
self.changesDone = False
self.connect(self.zoomSlider, SIGNAL("valueChanged(int)"), self.zoom)
self.connect(self.textArea, SIGNAL("cursorPositionChanged()"),
self.cursorPosition)
def zoom(self):
value = self.zoomSlider.value()
if self.curZoomValue > value:
self.textArea.zoomOut((self.curZoomValue - value))
else:
self.textArea.zoomIn((value - self.curZoomValue))
self.curZoomValue = value
def cursorPosition(self):
self.changesDone = True
cursor = self.textArea.textCursor()
curLine = str(cursor.blockNumber() + 1)
curCol = str(cursor.columnNumber())
# #print curLine, curCol
self.positionLabel.setText(curLine + ',' + curCol)
self.wordSymbolCount()
def wordSymbolCount(self):
selectedText = self.textArea.textCursor().selectedText()
if selectedText == '':
text = self.textArea.toPlainText()
wordCount = len(text.split(' '))
symbolCount = len(text)
else:
wordCount = len(selectedText.split(' '))
symbolCount = len(selectedText)
# #print wordCount, symbolCount
self.countLabel.setText("Word: " + str(wordCount) + ", " +
"Symbols: " + str(symbolCount))
def updateToolBar(self):
# NEW DOCUMENT
self.new = QAction(QIcon("icons/new.png"), "New", self)
self.new.setStatusTip("Create a new document")
self.new.setShortcut("Ctrl+N")
self.new.triggered.connect(self.new_doc)
# OPEN EXISTING DOCUMENT
self.open = QAction(QIcon("icons/open.png"), "Open file", self)
self.open.setStatusTip("Open the existing document")
self.open.setShortcut("Ctrl+O")
self.open.triggered.connect(self.open_doc)
# SAVE FILE
self.save = QAction(QIcon("icons/save.png"), "Save current file", self)
self.save.setStatusTip("Save the current document")
self.save.setShortcut("Ctrl+S")
self.save.triggered.connect(self.save_doc)
# EXPORT TO PDF
self.pdf = QAction(QIcon("icons/pdf.jpg"), "Export as PDF", self)
self.pdf.setStatusTip("Converting file to pdf")
self.pdf.triggered.connect(self.exportPdf)
# PRINT
self.Print = QAction(QIcon("icons/print.svg"), "Print document", self)
self.Print.setStatusTip("Print the document")
self.Print.setShortcut("Ctrl+P")
self.Print.triggered.connect(self.print_doc)
# PRINT PREVIEW
self.preview = QAction(QIcon("icons/preview.png"), "Page view", self)
self.preview.setStatusTip("Preview page before printing")
self.preview.setShortcut("Ctrl+Shift+O")
self.preview.triggered.connect(self.preview_doc)
# UNDO
self.undo = QAction(QIcon("icons/undo.png"), "Undo last action", self)
self.undo.setStatusTip("Undo the document")
self.undo.setShortcut("Ctrl+Z")
self.undo.triggered.connect(self.textArea.undo)
# REDO
self.redo = QAction(QIcon("icons/redo.jpg"), "Redo last undone action",
self)
self.redo.setStatusTip("Redo the document")
self.redo.setShortcut("Ctrl+Y")
self.redo.triggered.connect(self.textArea.redo)
# CUT
self.cut = QAction(QIcon("icons/cut.png"), "Cut the selection", self)
self.cut.setStatusTip("Delete and Copy text")
self.cut.setShortcut("Ctrl+X")
self.cut.triggered.connect(self.textArea.cut)
# COPY
self.copy = QAction(QIcon("icons/copy.png"), "Copy the selection",
self)
self.copy.setStatusTip("Copy text")
self.copy.setShortcut("Ctrl+C")
self.copy.triggered.connect(self.textArea.copy)
# PASTE
self.paste = QAction(QIcon("icons/paste.png"), "Paste the clipboard",
self)
self.paste.setStatusTip("Paste text from clipboard")
self.paste.setShortcut("Ctrl+V")
self.paste.triggered.connect(self.textArea.paste)
# SEARCH
self.search = QAction(QIcon("icons/search.png"), "Search for text",
self)
self.search.setStatusTip("Search text from clipboard")
self.search.setShortcut("Ctrl+Q")
self.search.triggered.connect(find.Search(self).show)
# FIND & REPLACE
self.find = QAction(QIcon("icons/find.png"), "Find & replace text",
self)
self.find.setStatusTip("Find and replace the text from clipboard")
self.find.setShortcut("Ctrl+F")
self.find.triggered.connect(find_n_replace.FindandReplace(self).show)
# BULLET LIST
bulletlist = QAction(QIcon("icons/bullet.svg"), "Insert bullet List",
self)
bulletlist.setStatusTip("Insert bullet list")
bulletlist.setShortcut("Ctrl+Shift+B")
bulletlist.triggered.connect(self.bulletList)
# NUMBERED LIST
numberlist = QAction(QIcon("icons/number.png"), "Insert numbered List",
self)
numberlist.setStatusTip("Insert numbered list")
numberlist.setShortcut("Ctrl+Shift+L")
numberlist.triggered.connect(self.numberedList)
# closing the file
self.clos = QAction(QIcon("icons/close.png"), "Close the File", self)
self.clos.setStatusTip("Closing the file")
self.clos.setShortcut(QKeySequence(Qt.Key_Escape))
self.clos.triggered.connect(self.close_doc)
# ADDING ACTIONS TO TOOLBAR
self.toolbar.addAction(self.new)
self.toolbar.addAction(self.open)
self.toolbar.addAction(self.save)
# separating line
self.toolbar.addSeparator()
self.toolbar.addAction(self.pdf)
self.toolbar.addAction(self.Print)
self.toolbar.addAction(self.preview)
# separating
self.toolbar.addSeparator()
self.toolbar.addAction(self.undo)
self.toolbar.addAction(self.redo)
# separating
self.toolbar.addSeparator()
self.toolbar.addAction(self.cut)
self.toolbar.addAction(self.copy)
self.toolbar.addAction(self.paste)
# separating
self.toolbar.addSeparator()
self.toolbar.addAction(self.search)
self.toolbar.addAction(self.find)
# separating
self.toolbar.addSeparator()
self.toolbar.addAction(bulletlist)
self.toolbar.addAction(numberlist)
# separating
self.toolbar.addSeparator()
self.toolbar.addAction(self.clos)
self.addToolBarBreak()
def updateFormatBar(self):
self.formatBar.setMovable(False)
self.formatBar.setFloatable(False)
fontnames = QFontComboBox(self)
fontnames.currentFontChanged.connect(self.fontFamily)
# different font sizes
fontSize = QComboBox(self)
fontSize.setEditable(True)
# Minimum number of chars displayed
fontSize.setMinimumContentsLength(3)
fontSize.activated.connect(self.FontSize)
# Typical font sizes
fsizelist = ['6', '7', '8', '9', '10', '10.5', '11', '12',
'13', '14', '15', '16', '18', '20', '22', '24',
'26', '28', '32', '36', '40', '44', '48', '54',
'60', '66', '72', '80', '88', '96']
for i in fsizelist:
fontSize.addItem(i)
# set text colour
fontcolor = QAction(QIcon("icons/fontcolor.png"), "Font Color", self)
fontcolor.setStatusTip("Change font color")
fontcolor.triggered.connect(self.fontColor)
# set background colour
backcolor = QAction(QIcon("icons/bckcolor.png"), "Background Color",
self)
backcolor.setStatusTip("Change background color")
backcolor.triggered.connect(self.backColor)
# bold text
boldtext = QAction(QIcon("icons/bold.png"), "Bold", self)
boldtext.triggered.connect(self.bold)
# italic text
italictext = QAction(QIcon("icons/italic.png"), "Italic", self)
italictext.triggered.connect(self.italic)
# underline the text
underltext = QAction(QIcon("icons/under.png"), "Underline", self)
underltext.triggered.connect(self.underline)
# strike action
strike = QAction(QIcon("icons/strike.png"), "Strike-out", self)
strike.triggered.connect(self.strike)
superscript = QAction(QIcon("icons/super.png"), "Superscript", self)
superscript.triggered.connect(self.superScript)
subscript = QAction(QIcon("icons/sub.jpg"), "Subscript", self)
subscript.triggered.connect(self.subScript)
# different alignments
alignLeft = QAction(QIcon("icons/left.png"), "Align left", self)
alignLeft.setShortcut("Ctrl+L")
alignLeft.triggered.connect(self.alignLeft)
alignCenter = QAction(QIcon("icons/center.png"), "Centered", self)
alignCenter.setShortcut("Ctrl+E")
alignCenter.triggered.connect(self.alignCenter)
alignRight = QAction(QIcon("icons/right.png"), "Align Right", self)
alignRight.setShortcut("Ctrl+R")
alignRight.triggered.connect(self.alignRight)
alignJustify = QAction(QIcon("icons/justify.png"), "Justified", self)
alignJustify.setShortcut("Ctrl+J")
alignJustify.triggered.connect(self.alignJustify)
# Increase the indent of area
indent = QAction(QIcon("icons/indent.png"), "Increase Indent", self)
indent.setShortcut("Ctrl+Tab")
indent.triggered.connect(self.indent)
# Decrease the indent of area
dedent = QAction(QIcon("icons/dedent.png"), "Decrease Indent", self)
dedent.setShortcut("Shift+Tab")
dedent.triggered.connect(self.dedent)
# Change case
case = QAction(QIcon("icons/case.png"), "Changing case", self)
case.triggered.connect(self.changeCase)
self.formatBar.addWidget(fontnames)
self.formatBar.addSeparator()
self.formatBar.addWidget(fontSize)
# separating
self.formatBar.addSeparator()
self.formatBar.addAction(boldtext)
self.formatBar.addAction(italictext)
self.formatBar.addAction(underltext)
# separating
self.formatBar.addSeparator()
self.formatBar.addAction(strike)
self.formatBar.addAction(superscript)
self.formatBar.addAction(subscript)
# separating
self.formatBar.addSeparator()
self.formatBar.addAction(alignLeft)
self.formatBar.addAction(alignCenter)
self.formatBar.addAction(alignRight)
self.formatBar.addAction(alignJustify)
# separating
self.formatBar.addSeparator()
self.formatBar.addAction(case)
self.formatBar.addAction(indent)
self.formatBar.addAction(dedent)
# separating
self.formatBar.addSeparator()
self.formatBar.addAction(fontcolor)
self.formatBar.addAction(backcolor)
self.formatBar.addSeparator()
def updateMenuBar(self):
self.fileMenu = self.menubar.addMenu('&File')
self.updateFileMenu()
self.editMenu = self.menubar.addMenu('&Edit')
self.updateEditMenu()
self.viewMenu = self.menubar.addMenu('&View')
self.updateViewMenu()
self.insertMenu = self.menubar.addMenu('&Insert')
self.updateInsertMenu()
def updateFileMenu(self):
self.fileMenu.addAction(self.new)
self.fileMenu.addAction(self.open)
self.fileMenu.addAction(self.save)
self.fileMenu.addAction(self.pdf)
self.fileMenu.addAction(self.Print)
self.fileMenu.addAction(self.preview)
self.fileMenu.addAction(self.clos)
def updateEditMenu(self):
self.editMenu.addAction(self.undo)
self.editMenu.addAction(self.undo)
self.editMenu.addAction(self.redo)
self.editMenu.addAction(self.cut)
self.editMenu.addAction(self.copy)
self.editMenu.addAction(self.paste)
self.editMenu.addAction(self.search)
self.editMenu.addAction(self.find)
def updateViewMenu(self):
fullScreenAction = QAction(QIcon(''), 'Full Screen', self,
checkable=True)
fullScreenAction.setShortcut(QKeySequence(Qt.Key_F11))
self.connect(fullScreenAction, SIGNAL("triggered()"), self.fullScreen)
self.viewMenu.addAction(fullScreenAction)
self.toolbarAction = QAction(QIcon(''), 'Toolbar', self,
checkable=True)
self.toolbarAction.setChecked(True)
self.connect(self.toolbarAction, SIGNAL("triggered()"),
self.showHideToolbar)
self.viewMenu.addAction(self.toolbarAction)
def updateInsertMenu(self):
self.imageAction = QAction(QIcon(''), "Image", self)
self.connect(self.imageAction, SIGNAL("triggered()"), self.insertImage)
self.insertMenu.addAction(self.imageAction)
def showHideToolbar(self):
if self.toolbarAction.isChecked() is True:
self.formatBar.show()
else:
self.formatBar.hide()
def fullScreen(self):
if self.isFullScreen() is True:
self.showNormal()
else:
self.showFullScreen()
def insertImage(self):
filename = QFileDialog.getOpenFileName(self, 'Insert image', ".",
"Images(*.png *.xpm *.jpg *.bmp\
*.gif)")
if filename:
image = QImage(filename)
if image.isNull():
popup = QMessageBox(QMessageBox.Critical, "Image load error",
"Could not load image file!",
QMessageBox.Ok, self)
popup.show()
else:
cursor = self.textArea.textCursor()
cursor.insertImage(image, filename)
def new_doc(self):
# self.textArea.clear()
newfile = Editor(self)
newfile.show()
def open_doc(self):
self.changesDone = False
self.filenm = QFileDialog.getOpenFileName(self, 'Open File', ".")
if self.filenm:
with open(self.filenm, "r+") as file:
self.textArea.setText(file.read())
def save_doc(self):
if self.changesDone is True:
if not self.filenm:
self.filenm = QFileDialog.getSaveFileName(self, 'Save File')
if self.filenm:
with open(self.filenm, "w+") as file:
file.write(self.textArea.toHtml())
self.changesDone = False
def exportPdf(self):
printer = QPrinter()
printer.setOutputFormat(printer.NativeFormat)
dialog = QPrintDialog(printer)
dialog.setOption(dialog.PrintToFile)
if dialog.exec_() == QDialog.Accepted:
self.textArea.document().print_(dialog.printer())
def print_doc(self):
# opening print dialog
dialog_box = QPrintDialog()
if dialog_box.exec_() == QDialog.Accepted:
self.textArea.document().print_(dialog_box.printer())
def preview_doc(self):
pageview = QPrintPreviewDialog()
pageview.paintRequested.connect(self.textArea.print_)
pageview.exec_()
def bulletList(self):
textcursor = self.textArea.textCursor()
textcursor.insertList(QTextListFormat.ListDisc)
def numberedList(self):
textcursor = self.textArea.textCursor()
textcursor.insertList(QTextListFormat.ListDecimal)
def close_doc(self):
self.close()
def closeEvent(self, event):
if self.changesDone is True:
msg_box = QMessageBox.question(self,
'Save the document before closing?',
"Changes will lost. Wanna Save?",
QMessageBox.Yes | QMessageBox.No |
QMessageBox.Cancel, QMessageBox.No)
if msg_box == QMessageBox.Yes:
event.accept()
self.save_doc()
elif msg_box == QMessageBox.Cancel:
event.ignore()
else:
event.accept()
else:
event.accept()
def fontFamily(self, font):
font = QFont(font)
self.textArea.setCurrentFont(font)
def FontSize(self, fontsize):
self.textArea.setFontPointSize(int(fontsize))
def fontColor(self):
# select colour from color dialog
textcolor = QColorDialog.getColor()
# Setting new text color
self.textArea.setTextColor(textcolor)
def backColor(self):
bckcolor = QColorDialog.getColor()
# after selecting,setting new bckcolor
self.textArea.setTextBackgroundColor(bckcolor)
def bold(self):
b = self.textArea.fontWeight()
if b == QFont.Normal:
self.textArea.setFontWeight(QFont.Bold)
else:
self.textArea.setFontWeight(QFont.Normal)
def italic(self):
i = self.textArea.fontItalic()
if i is False:
self.textArea.setFontItalic(True)
else:
self.textArea.setFontItalic(False)
def underline(self):
u = self.textArea.fontUnderline()
if u is False:
self.textArea.setFontUnderline(True)
else:
self.textArea.setFontUnderline(False)
def strike(self):
ftxt = self.textArea.currentCharFormat()
ftxt.setFontStrikeOut(not ftxt.fontStrikeOut())
self.textArea.setCurrentCharFormat(ftxt)
def superScript(self):
ftxt = self.textArea.currentCharFormat()
alignment = ftxt.verticalAlignment()
if alignment == QTextCharFormat.AlignNormal:
ftxt.setVerticalAlignment(QTextCharFormat.AlignSuperScript)
else:
ftxt.setVerticalAlignment(QTextCharFormat.AlignNormal)
self.textArea.setCurrentCharFormat(ftxt)
def subScript(self):
ftxt = self.textArea.currentCharFormat()
alignment = ftxt.verticalAlignment()
if alignment == QTextCharFormat.AlignNormal:
ftxt.setVerticalAlignment(QTextCharFormat.AlignSubScript)
else:
ftxt.setVerticalAlignment(QTextCharFormat.AlignNormal)
self.textArea.setCurrentCharFormat(ftxt)
def alignLeft(self):
self.textArea.setAlignment(Qt.AlignLeft)
def alignRight(self):
self.textArea.setAlignment(Qt.AlignRight)
def alignCenter(self):
self.textArea.setAlignment(Qt.AlignCenter)
def alignJustify(self):
self.textArea.setAlignment(Qt.AlignJustify)
def changeCase(self):
fmt1 = QTextCharFormat()
fmt1.setFontCapitalization(QFont.AllUppercase)
self.textArea.setCurrentCharFormat(fmt1)
def indent(self):
cur = self.textArea.textCursor()
if cur.hasSelection():
temp = cur.blockNumber()
cur.setPosition(cur.selectionEnd())
# Calculate range of selection
diff = cur.blockNumber() - temp
for n in range(diff + 1):
cur.movePosition(QTextCursor.StartOfLine)
cur.insertText("\t")
# move back up
cur.movePosition(QTextCursor.Up)
else:
cur.insertText("\t")
def dedent(self):
cur = self.textArea.textCursor()
if cur.hasSelection():
temp = cur.blockNumber()
cur.setPosition(cur.selectionEnd())
# Calculate range of selection
diff = cur.blockNumber() - temp
for n in range(diff + 1):
self.handleDedent(cur)
cur.movePosition(QTextCursor.Up)
else:
self.handleDedent(cur)
def handleDedent(self, cur):
cur.movePosition(QTextCursor.StartOfLine)
# Grab the current line
line = cur.block().text()
# If the line starts with a tab character, delete it
if line.startsWith("\t"):
# Delete next character
cur.deleteChar()
else:
for char in line[:8]:
if char != " ":
break
cur.deleteChar()
def main():
app = QApplication(sys.argv)
editor = Editor()
editor.show()
sys.exit(app.exec_())
if __name__ == "__main__":
main()