In this Python article, we are going to learn How to Create FontDialog in Pyside2, for this purpose we are using QFontDialog class from Pyside2. the QFontDialog class provides a dialog widget for selecting a font.
Also you can check my previous articles on Pyside2 GUI Development.
1: Getting Started With Pyside2 | Qt For Python
2: Pyside2 GUI Creating First Window
3: Pyside2 GUI Creating Window Icon
4: Pyside2 GUI How To Create Icon Modes
5: Pyside2 GUI How To Create Tooltip
6: Pyside2 GUI QPushButton With Signal And Slot
7: Pyside2 GUI Making Center The Window
8: Python GUI How To Create AboutBox
9: Python GUI How to Create Digital Clock in Pyside2
10: How To Create StatusBar In Pyside2
11: Pyside2 Creating QProgressBar
12: Pyside2 Layout Managment with QHBoxLayout
13: Pyside2 GridLayout Example
16: Pyside2 Creating FontComboBox
17: Pyside2 Creating QCompleter
18: Pyside2 GUI Creating Slider
19: Pyside2 Create MenuBar & MenuItems
21: Pyside2 Creating Print Preview Dialog
22: How to Create Print Dialog in Pyside2
23: Python Exporting File as PDF with Pyside2
So now this is source code for Python How to Create FontDialog in Pyside2
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from PySide2.QtWidgets import QApplication, QMainWindow, QAction,QFontDialog , QTextEdit, QFileDialog import sys from PySide2.QtGui import QIcon, QFont from PySide2.QtPrintSupport import QPrinter, QPrintPreviewDialog, QPrintDialog from PySide2.QtCore import QFileInfo class Window(QMainWindow): def __init__(self): super().__init__() self.setWindowTitle("Simple Notepad Application") self.setGeometry(300,200,700,500) self.textEdit = QTextEdit(self) self.textEdit.setFont(QFont('Sanserif', 13)) self.setCentralWidget(self.textEdit) self.setIcon() self.create_menu() self.show() def setIcon(self): appIcon = QIcon("icon.png") self.setWindowIcon(appIcon) def create_menu(self): mainMenu = self.menuBar() fileMenu = mainMenu.addMenu('File') viewMenu = mainMenu.addMenu('View') editMenu = mainMenu.addMenu('Edit') fontMenu = mainMenu.addMenu('Font') helpMenu = mainMenu.addMenu('Help') # open action openAction = QAction(QIcon('open.png'), "Open", self) openAction.setShortcut('Ctrl+O') # save action saveAction = QAction(QIcon('save.png'), "Save", self) saveAction.setShortcut('Ctrl+S') # exit action exitAction = QAction(QIcon('exit.png'), "Exit", self) exitAction.setShortcut('Ctrl+X') #print previeq action previewAction = QAction(QIcon('printpreview.png'), "Print Preview", self) # print action printAction = QAction(QIcon('print.png'), "Print", self) printAction.setShortcut("Ctrl+P") #export as pdf newly added for this article pdfAction = QAction(QIcon('pdf.png'), "Export PDF", self) #font action fontAction = QAction(QIcon('font.png'), "Font", self) #signals for the actions exitAction.triggered.connect(self.exit_app) previewAction.triggered.connect(self.print_preview_dialog) printAction.triggered.connect(self.print_dialog) pdfAction.triggered.connect(self.pdf_export) fontAction.triggered.connect(self.font_dialog) fileMenu.addAction(openAction) fileMenu.addAction(saveAction) fileMenu.addAction(exitAction) viewMenu.addAction(previewAction) viewMenu.addAction(printAction) viewMenu.addAction(pdfAction) fontMenu.addAction(fontAction) def exit_app(self): self.close() def print_preview_dialog(self): printer = QPrinter(QPrinter.HighResolution) previewDialog = QPrintPreviewDialog(printer, self) previewDialog.paintRequested.connect(self.print_preview) previewDialog.exec_() def print_preview(self, printer): self.textEdit.print_(printer) def print_dialog(self): printer = QPrinter(QPrinter.HighResolution) dialog = QPrintDialog(printer, self) if dialog.exec_() == QPrintDialog.Accepted: self.textEdit.print_(printer) def pdf_export(self): fn, _ = QFileDialog.getSaveFileName(self, "Export PDF", None, "PDF files (.pdf); All files") if fn != '': if QFileInfo(fn).suffix() == "": fn += '.pdf' printer = QPrinter(QPrinter.HighResolution) printer.setOutputFormat(QPrinter.PdfFormat) printer.setOutputFileName(fn) self.textEdit.document().print_(printer) def font_dialog(self): (ok, font) = QFontDialog.getFont() if ok: self.textEdit.setFont(font) myapp = QApplication(sys.argv) window = Window() myapp.exec_() sys.exit() |
In the above code we are using some codes from the previous article.
1: Pyside2 Create MenuBar & MenuItems
3: Pyside2 Creating Print Preview Dialog
4: How to Create Print Dialog in Pyside2
5: Python Exporting File as PDF with Pyside2
you can check the above articles to know more about this code, but we are going to just focus on creating FontDialog in Pyisde2.
These are the imports that we need in this article. the newly import is QFontDialog that we have imported from Pyside2.QtQiwdgets module.
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from PySide2.QtWidgets import QApplication, QMainWindow, QAction,QFontDialog , QTextEdit, QFileDialog import sys from PySide2.QtGui import QIcon, QFont from PySide2.QtPrintSupport import QPrinter, QPrintPreviewDialog, QPrintDialog from PySide2.QtCore import QFileInfo |
OK now in here we are going to set our window title, also we need to set the geometry of the window, like x and y position of the window, also width and height of the window .
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self.setWindowTitle("Simple Notepad Application") self.setGeometry(300,200,700,500) |
Also we need to create our QTextEdit in our main class, first we have created the object of QTextEdit, after that we have set the font for our QTextEdit. also you need to set the textedit as central widget for the window.
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self.textEdit = QTextEdit(self) self.textEdit.setFont(QFont('Sanserif', 13)) self.setCentralWidget(self.textEdit) |
In here we have created menuBar object and we have added some items to the menuBar.
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mainMenu = self.menuBar() fileMenu = mainMenu.addMenu('File') viewMenu = mainMenu.addMenu('View') editMenu = mainMenu.addMenu('Edit') fontMenu = mainMenu.addMenu('Font') helpMenu = mainMenu.addMenu('Help') |
OK now in here we have added some menu items with the icons and also shortcuts. make sure that you have some icons in your working directory. we are using QAction for this purpose, so in applications many common commands can be invoked via menus, toolbar buttons, and keyboard shortcuts. since the user expects each command to be performed in the same way, regardless of the user interface used, it is useful to represent each command as an action. Actions can be added to menus and toolbars, and will automatically keep them in sync. for example, in a word processor, if the user presses a Bold toolbar button, the Bold menu item will automatically be checked. also we have added our new menu item action that is used for creating FontDialog.
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# open action openAction = QAction(QIcon('open.png'), "Open", self) openAction.setShortcut('Ctrl+O') # save action saveAction = QAction(QIcon('save.png'), "Save", self) saveAction.setShortcut('Ctrl+S') # exit action exitAction = QAction(QIcon('exit.png'), "Exit", self) exitAction.setShortcut('Ctrl+X') #print previeq action previewAction = QAction(QIcon('printpreview.png'), "Print Preview", self) # print action printAction = QAction(QIcon('print.png'), "Print", self) printAction.setShortcut("Ctrl+P") #export as pdf newly added for this article pdfAction = QAction(QIcon('pdf.png'), "Export PDF", self) #font action fontAction = QAction(QIcon('font.png'), "Font", self) |
These are the five signals for our two menu items, and the newest one is for our creating FontDialog that we have connected that signal to a method called font_dialog(), we will create this method later.
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#signals for the actions exitAction.triggered.connect(self.exit_app) previewAction.triggered.connect(self.print_preview_dialog) printAction.triggered.connect(self.print_dialog) pdfAction.triggered.connect(self.pdf_export) fontAction.triggered.connect(self.font_dialog) |
Now after creation of menu actions, we need to add that to the related menubar like this. basically in this example we want to add the menu items in our file and view menu and also the newest menu item for creating font dialog in font menu .
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fileMenu.addAction(openAction) fileMenu.addAction(saveAction) fileMenu.addAction(exitAction) viewMenu.addAction(previewAction) viewMenu.addAction(printAction) viewMenu.addAction(pdfAction) #newly added fontMenu.addAction(fontAction) |
These are the methods that we have already covered, you can check the articles about these in the above link. also we have connected these methods with the specific menu item signals.
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def exit_app(self): self.close() def print_preview_dialog(self): printer = QPrinter(QPrinter.HighResolution) previewDialog = QPrintPreviewDialog(printer, self) previewDialog.paintRequested.connect(self.print_preview) previewDialog.exec_() def print_preview(self, printer): self.textEdit.print_(printer) def print_dialog(self): printer = QPrinter(QPrinter.HighResolution) dialog = QPrintDialog(printer, self) if dialog.exec_() == QPrintDialog.Accepted: self.textEdit.print_(printer) def pdf_export(self): fn, _ = QFileDialog.getSaveFileName(self, "Export PDF", None, "PDF files (.pdf); All files") if fn != '': if QFileInfo(fn).suffix() == "": fn += '.pdf' printer = QPrinter(QPrinter.HighResolution) printer.setOutputFormat(QPrinter.PdfFormat) printer.setOutputFileName(fn) self.textEdit.document().print_(printer) |
OK now this is the important point of this article, basically this is the creation of font dialog method.
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def font_dialog(self): (ok, font) = QFontDialog.getFont() if ok: self.textEdit.setFont(font) |
As you can see in the code, first of all we have get the font and after that we have set the font to the textedit.
Finally, we enter the mainloop of the application. The event handling starts from this point. The mainloop receives events from the window system and dispatches them to the application widgets. also we have created the object of our window class in here.
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window = Window() myapp.exec_() sys.exit() |
So run the complete code and this will be the result
Also you can watch the complete video for this article
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