1- from PyQt6 .QtWidgets import QMainWindow , QApplication , QFileDialog , QMessageBox
2- from PyQt6 .QtPrintSupport import QPrinter
1+ from PyQt6 .QtWidgets import QMainWindow , QApplication , QFileDialog , QMessageBox , QFontDialog , QColorDialog
2+ from PyQt6 .QtPrintSupport import QPrinter , QPrintDialog , QPrintPreviewDialog
33import sys
4+ from PyQt6 .QtCore import QFileInfo , Qt
5+ from PyQt6 .QtGui import QFont , QTextCharFormat
46from NotePad import Ui_MainWindow
57
8+
69class NotePadWindow (QMainWindow , Ui_MainWindow ):
710 def __init__ (self ):
811 super ().__init__ ()
912 self .setupUi (self )
1013 self .show ()
1114
1215 #---------------Signal Connection Section-----------------
16+ #--File Menu--
1317 self .actionSave .triggered .connect (self .save_file )
1418 self .actionNew .triggered .connect (self .file_new )
1519 self .actionOpen .triggered .connect (self .open_file )
20+ self .actionPrint .triggered .connect (self .print_file )
21+ self .actionPrint_Preview .triggered .connect (self .preview_dialog )
22+ self .actionExport_PDF .triggered .connect (self .export_pdf )
23+ self .actionQuit .triggered .connect (self .exit_app )
24+
25+ #--Edit Menu--
26+ self .actionUndo .triggered .connect (self .textEdit .undo )
27+ self .actionRedo .triggered .connect (self .textEdit .redo )
28+ self .actionCopy .triggered .connect (self .textEdit .copy )
29+ self .actionCut .triggered .connect (self .textEdit .cut )
30+ self .actionPaste .triggered .connect (self .textEdit .paste )
31+
32+ #--Format Menu--
33+ self .actionBold .triggered .connect (self .text_bold )
34+ self .actionItalic .triggered .connect (self .text_italic )
35+ self .actionUnderline .triggered .connect (self .text_underline )
36+
37+ self .actionAlign_Left .triggered .connect (self .align_left )
38+ self .actionAlign_Right .triggered .connect (self .align_right )
39+ self .actionCenter .triggered .connect (self .align_center )
40+ self .actionAlign_Justify .triggered .connect (self .align_justify )
41+
42+ self .actionFont .triggered .connect (self .font_dialog )
43+ self .actionColor .triggered .connect (self .color_dialog )
44+ self .actionAbout_App .triggered .connect (self .about )
45+
1646
1747
1848 #------------Maybe Save Function----------------
@@ -45,6 +75,7 @@ def file_new(self):
4575 if self .maybe_save ():
4676 self .textEdit .clear ()
4777
78+
4879 #------------------Open File Function-----------------------
4980 def open_file (self ):
5081 fname = QFileDialog .getOpenFileName (self , "Open File" , '/home' )
@@ -56,6 +87,129 @@ def open_file(self):
5687
5788 #-----------------Print Function--------------------
5889 # from PyQt6.QtPrintSupport import QPrinter --> inded libraries
90+ def print_file (self ):
91+ printer = QPrinter (QPrinter .PrinterMode .HighResolution )
92+ dialog = QPrintDialog (printer )
93+
94+ if dialog .exec () == QPrintDialog .DialogCode .Accepted :
95+ self .textEdit .print (printer )
96+
97+ #--------------Print Preview Function---------------------
98+ # from PyQt6.QtPrintSupport import QPrintPreviewDialog --> loaded libraries
99+ def preview_dialog (self ):
100+ printer = QPrinter (QPrinter .PrinterMode .HighResolution )
101+ previewDialog = QPrintPreviewDialog (printer , self )
102+ previewDialog .paintRequested .connect (self .print_preview )
103+ previewDialog .exec ()
104+
105+ def print_preview (self , printer ):
106+ self .textEdit .print (printer )
107+
108+ #----------------Export PDF Section-------------------
109+ # from PyQt6.QtCore import QFileInfo --> loaded libraries
110+ def export_pdf (self ):
111+ fn , _ = QFileDialog .getSaveFileName (self , 'Export PDF' , "PDF files (.pdf)" )
112+ if fn != "" :
113+ if QFileInfo (fn ).suffix () == "" :fn += '.pdf'
114+ printer = QPrinter (QPrinter .PrinterMode .HighResolution )
115+ printer .setOutputFormat (QPrinter .OutputFormat .PdfFormat )
116+ printer .setOutputFileName (fn )
117+ self .textEdit .document ().print (printer )
118+
119+ #--------------Quit Section---------------------------
120+ def exit_app (self ):
121+ self .close ()
122+
123+ #--------------Bold Section---------------------------
124+ def text_bold (self ):
125+ current_format_bold = self .textEdit .currentCharFormat ()
126+ new_format_bold = QTextCharFormat ()
127+
128+ # Toggle bold property
129+ new_format_bold .setFontWeight (QFont .Weight .Bold if current_format_bold .fontWeight () == QFont .Weight .Normal else QFont .Weight .Normal )
130+
131+ # Preserve the existing underline and italic properties
132+ new_format_bold .setFontItalic (current_format_bold .fontItalic ())
133+ new_format_bold .setFontUnderline (current_format_bold .fontUnderline ())
134+
135+ # Apply the modified format to the selected text
136+ cursor = self .textEdit .textCursor ()
137+ cursor .mergeCharFormat (new_format_bold )
138+ self .textEdit .setCurrentCharFormat (new_format_bold )
139+
140+ #--------------Italic Section---------------------------
141+ def text_italic (self ):
142+ current_format_italic = self .textEdit .currentCharFormat ()
143+ new_format_italic = QTextCharFormat ()
144+
145+ # Toggle italic property
146+ new_format_italic .setFontItalic (not current_format_italic .fontItalic ())
147+
148+ # Preserve the existing underline and bold properties
149+ new_format_italic .setFontWeight (current_format_italic .fontWeight ())
150+ new_format_italic .setFontUnderline (current_format_italic .fontUnderline ())
151+
152+ # Apply the modified format to the selected text
153+ cursor = self .textEdit .textCursor ()
154+ cursor .mergeCharFormat (new_format_italic )
155+ self .textEdit .setCurrentCharFormat (new_format_italic )
156+
157+ #--------------Underline Section---------------------------
158+ def text_underline (self ):
159+ current_format_underline = self .textEdit .currentCharFormat ()
160+ new_format_underline = QTextCharFormat ()
161+
162+ # Toggle underline property
163+ new_format_underline .setFontUnderline (not current_format_underline .fontUnderline ())
164+
165+ # Preserve the existing Italic and bold properties
166+ new_format_underline .setFontWeight (current_format_underline .fontWeight ())
167+ new_format_underline .setFontItalic (current_format_underline .fontItalic ())
168+
169+
170+ # Apply the modified format to the selected text
171+ cursor = self .textEdit .textCursor ()
172+ cursor .mergeCharFormat (new_format_underline )
173+ self .textEdit .setCurrentCharFormat (new_format_underline )
174+
175+ #------------Alignment Section-----------------
176+ def align_left (self ):
177+ self .textEdit .setAlignment (Qt .AlignmentFlag .AlignLeft )
178+
179+ def align_right (self ):
180+ self .textEdit .setAlignment (Qt .AlignmentFlag .AlignRight )
181+
182+ def align_center (self ):
183+ self .textEdit .setAlignment (Qt .AlignmentFlag .AlignCenter )
184+
185+ def align_justify (self ):
186+ self .textEdit .setAlignment (Qt .AlignmentFlag .AlignJustify )
187+
188+ #----------Font Section------------
189+ def font_dialog (self ):
190+ font , ok = QFontDialog .getFont ()
191+
192+ if ok :
193+ cursor = self .textEdit .textCursor ()
194+
195+ # Preserve the existing formatting of the selected text
196+ current_format = cursor .charFormat ()
197+
198+ # Set the new font style
199+ current_format .setFont (font )
200+
201+ # Apply the modified format to the selected text
202+ cursor .mergeCharFormat (current_format )
203+
204+ #-----------Color Section--------------
205+ def color_dialog (self ):
206+ color = QColorDialog .getColor ()
207+ self .textEdit .setTextColor (color )
208+
209+ #--------About Section---------------
210+ def about (self ):
211+ QMessageBox .about (self , "About App" , "This is simple notepad app with PyQt6" )
212+
59213
60214
61215app = QApplication (sys .argv )
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