In this PyQt5 article i want to show you Creating Print Preview Dialog in PyQt5. basically we are using QPrintPreviewDialog class for this article. The QPrintPreviewDialog class provides a dialog for previewing and configuring page layouts for printer output.
Also you can read more Python GUI articles in the below links
- Kivy GUI Development Tutorials
- TKinter GUI Development Tutorials
- Pyside2 GUI Development
- wxPython GUI Development Tutorials
- PyQt5 GUI Development Tutorials
First we need some imports.
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from PyQt5 import QtGui from PyQt5.QtWidgets import QApplication, QMainWindow, QAction, QTextEdit, QFontDialog, QColorDialog import sys from PyQt5.QtGui import QIcon from PyQt5.QtPrintSupport import QPrintDialog, QPrinter, QPrintPreviewDialog |
After that we create our Window class that extends from QMainWindow and we add the specific requirements and methods in that class. because we are using the codes from the previous article. so we need to just focus on print preview code.
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class Window(QMainWindow): def __init__(self): super().__init__() self.title = "PyQt5 QToolbar" self.top = 200 self.left = 500 self.width = 680 self.height = 480 self.setWindowIcon(QtGui.QIcon("icon.png")) self.setWindowTitle(self.title) self.setGeometry(self.left, self.top, self.width, self.height) self.createEditor() self.CreateMenu() self.show() def CreateMenu(self): mainMenu = self.menuBar() fileMenu = mainMenu.addMenu('File') editMenu = mainMenu.addMenu('Edit') viewMenu = mainMenu.addMenu('View') helpMenu = mainMenu.addMenu('Help') printAction = QAction(QIcon("print.png"), "Print", self) printAction.triggered.connect(self.printDialog) fileMenu.addAction(printAction) printPreviewAction = QAction(QIcon("printprev.png"), "Print Preview", self) printPreviewAction.triggered.connect(self.printpreviewDialog) fileMenu.addAction(printPreviewAction) exiteAction = QAction(QIcon("exit.png"), 'Exit', self) exiteAction.setShortcut("Ctrl+E") exiteAction.triggered.connect(self.exitWindow) fileMenu.addAction(exiteAction) copyAction = QAction(QIcon("copy.png"), 'Copy', self) copyAction.setShortcut("Ctrl+C") editMenu.addAction(copyAction) saveAction = QAction(QIcon("Save.png"), 'Save', self) saveAction.setShortcut("Ctrl+S") editMenu.addAction(saveAction) pasteAction = QAction(QIcon("Paste.png"), 'Paste', self) pasteAction.setShortcut("Ctrl+P") editMenu.addAction(pasteAction) fontAction = QAction(QIcon("font.png"), "Font", self) fontAction.setShortcut("Ctrl+F") fontAction.triggered.connect(self.fontDialog) viewMenu.addAction(fontAction) colorAction = QAction(QIcon("color.png"), "Color", self) colorAction.triggered.connect(self.colorDialog) viewMenu.addAction(colorAction) self.toolbar = self.addToolBar('Toolbar') self.toolbar.addAction(copyAction) self.toolbar.addAction(saveAction) self.toolbar.addAction(pasteAction) self.toolbar.addAction(exiteAction) self.toolbar.addAction(fontAction) self.toolbar.addAction(colorAction) self.toolbar.addAction(printAction) self.toolbar.addAction(printPreviewAction) def exitWindow(self): self.close() def createEditor(self): self.textEdit = QTextEdit(self) self.setCentralWidget(self.textEdit) def fontDialog(self): font, ok = QFontDialog.getFont() if ok: self.textEdit.setFont(font) def colorDialog(self): color = QColorDialog.getColor() self.textEdit.setTextColor(color) def printDialog(self): printer = QPrinter(QPrinter.HighResolution) dialog = QPrintDialog(printer, self) if dialog.exec_() == QPrintDialog.Accepted: self.textEdit.print_(printer) |
After that we create two method in that class for our Print Preview Dialog so the first method is for Preview Dialog and the second method is for setting the QTextEdit to show that in Print Preview Dialog.
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def printpreviewDialog(self): printer = QPrinter(QPrinter.HighResolution) previewDialog = QPrintPreviewDialog(printer, self) previewDialog.paintRequested.connect(self.printPreview) previewDialog.exec_() def printPreview(self, printer): self.textEdit.print_(printer) |
Also every PyQt5 application must create an application object. The sys.argv parameter is a list of arguments from a command line.
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App = QApplication(sys.argv) |
Finally, we enter the mainloop of the application. The event handling starts from this point.
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window = Window() sys.exit(App.exec()) |
So run the complete code and this will be the result.
This is the Complete source code for this article
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from PyQt5 import QtGui from PyQt5.QtWidgets import QApplication, QMainWindow, QAction, QTextEdit, QFontDialog, QColorDialog import sys from PyQt5.QtGui import QIcon from PyQt5.QtPrintSupport import QPrintDialog, QPrinter, QPrintPreviewDialog class Window(QMainWindow): def __init__(self): super().__init__() self.title = "PyQt5 QToolbar" self.top = 200 self.left = 500 self.width = 680 self.height = 480 self.setWindowIcon(QtGui.QIcon("icon.png")) self.setWindowTitle(self.title) self.setGeometry(self.left, self.top, self.width, self.height) self.createEditor() self.CreateMenu() self.show() def CreateMenu(self): mainMenu = self.menuBar() fileMenu = mainMenu.addMenu('File') editMenu = mainMenu.addMenu('Edit') viewMenu = mainMenu.addMenu('View') helpMenu = mainMenu.addMenu('Help') printAction = QAction(QIcon("print.png"), "Print", self) printAction.triggered.connect(self.printDialog) fileMenu.addAction(printAction) printPreviewAction = QAction(QIcon("printprev.png"), "Print Preview", self) printPreviewAction.triggered.connect(self.printpreviewDialog) fileMenu.addAction(printPreviewAction) exiteAction = QAction(QIcon("exit.png"), 'Exit', self) exiteAction.setShortcut("Ctrl+E") exiteAction.triggered.connect(self.exitWindow) fileMenu.addAction(exiteAction) copyAction = QAction(QIcon("copy.png"), 'Copy', self) copyAction.setShortcut("Ctrl+C") editMenu.addAction(copyAction) saveAction = QAction(QIcon("Save.png"), 'Save', self) saveAction.setShortcut("Ctrl+S") editMenu.addAction(saveAction) pasteAction = QAction(QIcon("Paste.png"), 'Paste', self) pasteAction.setShortcut("Ctrl+P") editMenu.addAction(pasteAction) fontAction = QAction(QIcon("font.png"), "Font", self) fontAction.setShortcut("Ctrl+F") fontAction.triggered.connect(self.fontDialog) viewMenu.addAction(fontAction) colorAction = QAction(QIcon("color.png"), "Color", self) colorAction.triggered.connect(self.colorDialog) viewMenu.addAction(colorAction) self.toolbar = self.addToolBar('Toolbar') self.toolbar.addAction(copyAction) self.toolbar.addAction(saveAction) self.toolbar.addAction(pasteAction) self.toolbar.addAction(exiteAction) self.toolbar.addAction(fontAction) self.toolbar.addAction(colorAction) self.toolbar.addAction(printAction) self.toolbar.addAction(printPreviewAction) def exitWindow(self): self.close() def createEditor(self): self.textEdit = QTextEdit(self) self.setCentralWidget(self.textEdit) def fontDialog(self): font, ok = QFontDialog.getFont() if ok: self.textEdit.setFont(font) def colorDialog(self): color = QColorDialog.getColor() self.textEdit.setTextColor(color) def printDialog(self): printer = QPrinter(QPrinter.HighResolution) dialog = QPrintDialog(printer, self) if dialog.exec_() == QPrintDialog.Accepted: self.textEdit.print_(printer) def printpreviewDialog(self): printer = QPrinter(QPrinter.HighResolution) previewDialog = QPrintPreviewDialog(printer, self) previewDialog.paintRequested.connect(self.printPreview) previewDialog.exec_() def printPreview(self, printer): self.textEdit.print_(printer) App = QApplication(sys.argv) window = Window() sys.exit(App.exec()) |
Also you can watch the complete video for this article.
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