この記事では主に python3+PyQt5 のドキュメント印刷機能を詳しく紹介します。興味のある方は参考にしてください。
この記事は Python3+PyQt5 を使用して「Python Qt Gui Fast」プログラミングを実装します。本書第 13 章の文書印刷機能。この記事では 3 つの方法を使用します:
1. HTML と QTextDOcument を使用してドキュメントを印刷します
2. QTextCusor と QTextDocument を使用してドキュメントを印刷します
#!/usr/bin/env python3 import math import sys import html from PyQt5.QtPrintSupport import QPrinter,QPrintDialog from PyQt5.QtCore import (QDate, QRectF, Qt) from PyQt5.QtWidgets import (QApplication,QDialog, QHBoxLayout,QPushButton, QTableWidget, QTableWidgetItem,QVBoxLayout) from PyQt5.QtGui import (QFont,QFontMetrics,QPainter,QTextCharFormat, QTextCursor, QTextDocument, QTextFormat, QTextOption, QTextTableFormat, QPixmap,QTextBlockFormat) import qrc_resources from PyQt5.QtPrintSupport import QPrinter,QPrintDialog from PyQt5.QtCore import (QDate, QRectF, Qt) from PyQt5.QtWidgets import (QApplication,QDialog, QHBoxLayout,QPushButton, QTableWidget, QTableWidgetItem,QVBoxLayout) from PyQt5.QtGui import (QFont,QFontMetrics,QPainter,QTextCharFormat, QTextCursor, QTextDocument, QTextFormat, QTextOption, QTextTableFormat, QPixmap,QTextBlockFormat) import qrc_resources DATE_FORMAT = "MMM d, yyyy" class Statement(object): def __init__(self, company, contact, address): self.company = company self.contact = contact self.address = address self.transactions = [] # List of (QDate, float) two-tuples def balance(self): return sum([amount for date, amount in self.transactions]) class Form(QDialog): def __init__(self, parent=None): super(Form, self).__init__(parent) self.printer = QPrinter() self.printer.setPageSize(QPrinter.Letter) self.generateFakeStatements() self.table = QTableWidget() self.populateTable() cursorButton = QPushButton("Print via Q&Cursor") htmlButton = QPushButton("Print via &HTML") painterButton = QPushButton("Print via Q&Painter") quitButton = QPushButton("&Quit") buttonLayout = QHBoxLayout() buttonLayout.addWidget(cursorButton) buttonLayout.addWidget(htmlButton) buttonLayout.addWidget(painterButton) buttonLayout.addStretch() buttonLayout.addWidget(quitButton) layout = QVBoxLayout() layout.addWidget(self.table) layout.addLayout(buttonLayout) self.setLayout(layout) cursorButton.clicked.connect(self.printViaQCursor) htmlButton.clicked.connect(self.printViaHtml) painterButton.clicked.connect(self.printViaQPainter) quitButton.clicked.connect(self.accept) self.setWindowTitle("Printing") def generateFakeStatements(self): self.statements = [] statement = Statement("Consality", "Ms S. Royal", "234 Rue Saint Hyacinthe, 750201, Paris") statement.transactions.append((QDate(2007, 8, 11), 2342)) statement.transactions.append((QDate(2007, 9, 10), 2342)) statement.transactions.append((QDate(2007, 10, 9), 2352)) statement.transactions.append((QDate(2007, 10, 17), -1500)) statement.transactions.append((QDate(2007, 11, 12), 2352)) statement.transactions.append((QDate(2007, 12, 10), 2352)) statement.transactions.append((QDate(2007, 12, 20), -7500)) statement.transactions.append((QDate(2007, 12, 20), 250)) statement.transactions.append((QDate(2008, 1, 10), 2362)) self.statements.append(statement) statement = Statement("Demamitur Plc", "Mr G. Brown", "14 Tall Towers, Tower Hamlets, London, WC1 3BX") statement.transactions.append((QDate(2007, 5, 21), 871)) statement.transactions.append((QDate(2007, 6, 20), 542)) statement.transactions.append((QDate(2007, 7, 20), 1123)) statement.transactions.append((QDate(2007, 7, 20), -1928)) statement.transactions.append((QDate(2007, 8, 13), -214)) statement.transactions.append((QDate(2007, 9, 15), -3924)) statement.transactions.append((QDate(2007, 9, 15), 2712)) statement.transactions.append((QDate(2007, 9, 15), -273)) #statement.transactions.append((QDate(2007, 11, 8), -728)) #statement.transactions.append((QDate(2008, 2, 7), 228)) #statement.transactions.append((QDate(2008, 3, 13), -508)) #statement.transactions.append((QDate(2008, 3, 22), -2481)) #statement.transactions.append((QDate(2008, 4, 5), 195)) self.statements.append(statement) def populateTable(self): headers = ["Company", "Contact", "Address", "Balance"] self.table.setColumnCount(len(headers)) self.table.setHorizontalHeaderLabels(headers) self.table.setRowCount(len(self.statements)) for row, statement in enumerate(self.statements): self.table.setItem(row, 0, QTableWidgetItem(statement.company)) self.table.setItem(row, 1, QTableWidgetItem(statement.contact)) self.table.setItem(row, 2, QTableWidgetItem(statement.address)) item = QTableWidgetItem("$ {0:,.2f}".format(float(statement.balance()))) item.setTextAlignment(Qt.AlignRight|Qt.AlignVCenter) self.table.setItem(row, 3, item) self.table.resizeColumnsToContents() def printViaHtml(self): htmltext = "" for statement in self.statements: date = QDate.currentDate().toString(DATE_FORMAT) address = html.escape(statement.address).replace( ",", "<br>") contact = html.escape(statement.contact) balance = statement.balance() htmltext += ("<p align=right><img src=':/logo.png'></p>" "<p align=right>Greasy Hands Ltd." "<br>New Lombard Street" "<br>London<br>WC13 4PX<br>{0}</p>" "<p>{1}</p><p>Dear {2},</p>" "<p>The balance of your account is $ {3:,.2f}.").format( date, address, contact, float(balance)) if balance < 0: htmltext += (" <p><font color=red><b>Please remit the " "amount owing immediately.</b></font>") else: htmltext += (" We are delighted to have done business " "with you.") htmltext += ("</p><p> </p><p>" "<table border=1 cellpadding=2 " "cellspacing=2><tr><td colspan=3>" "Transactions</td></tr>") for date, amount in statement.transactions: color, status = "black", "Credit" if amount < 0: color, status = "red", "Debit" htmltext += ("<tr><td align=right>{0}</td>" "<td>{1}</td><td align=right>" "<font color={2}>$ {3:,.2f}</font></td></tr>".format( date.toString(DATE_FORMAT), status, color,float(abs(amount)))) htmltext += ("</table></p><p style='page-break-after:always;'>" "We hope to continue doing " "business with you,<br>Yours sincerely," "<br><br>K. Longrey, Manager</p>") dialog = QPrintDialog(self.printer, self) if dialog.exec_(): document = QTextDocument() document.setHtml(htmltext) document.print_(self.printer) def printViaQCursor(self): dialog = QPrintDialog(self.printer, self) if not dialog.exec_(): return logo = QPixmap(":/logo.png") headFormat = QTextBlockFormat() headFormat.setAlignment(Qt.AlignLeft) headFormat.setTextIndent( self.printer.pageRect().width() - logo.width() - 216) bodyFormat = QTextBlockFormat() bodyFormat.setAlignment(Qt.AlignJustify) lastParaBodyFormat = QTextBlockFormat(bodyFormat) lastParaBodyFormat.setPageBreakPolicy( QTextFormat.PageBreak_AlwaysAfter) rightBodyFormat = QTextBlockFormat() rightBodyFormat.setAlignment(Qt.AlignRight) headCharFormat = QTextCharFormat() headCharFormat.setFont(QFont("Helvetica", 10)) bodyCharFormat = QTextCharFormat() bodyCharFormat.setFont(QFont("Times", 11)) redBodyCharFormat = QTextCharFormat(bodyCharFormat) redBodyCharFormat.setForeground(Qt.red) tableFormat = QTextTableFormat() tableFormat.setBorder(1) tableFormat.setCellPadding(2) document = QTextDocument() cursor = QTextCursor(document) mainFrame = cursor.currentFrame() page = 1 for statement in self.statements: cursor.insertBlock(headFormat, headCharFormat) cursor.insertImage(":/logo.png") for text in ("Greasy Hands Ltd.", "New Lombard Street", "London", "WC13 4PX", QDate.currentDate().toString(DATE_FORMAT)): cursor.insertBlock(headFormat, headCharFormat) cursor.insertText(text) for line in statement.address.split(", "): cursor.insertBlock(bodyFormat, bodyCharFormat) cursor.insertText(line) cursor.insertBlock(bodyFormat) cursor.insertBlock(bodyFormat, bodyCharFormat) cursor.insertText("Dear {0},".format(statement.contact)) cursor.insertBlock(bodyFormat) cursor.insertBlock(bodyFormat, bodyCharFormat) balance = statement.balance() cursor.insertText("The balance of your account is $ {0:,.2f}.".format(float(balance))) if balance < 0: cursor.insertBlock(bodyFormat, redBodyCharFormat) cursor.insertText("Please remit the amount owing " "immediately.") else: cursor.insertBlock(bodyFormat, bodyCharFormat) cursor.insertText("We are delighted to have done " "business with you.") cursor.insertBlock(bodyFormat, bodyCharFormat) cursor.insertText("Transactions:") table = cursor.insertTable(len(statement.transactions), 3, tableFormat) row = 0 for date, amount in statement.transactions: cellCursor = table.cellAt(row, 0).firstCursorPosition() cellCursor.setBlockFormat(rightBodyFormat) cellCursor.insertText(date.toString(DATE_FORMAT), bodyCharFormat) cellCursor = table.cellAt(row, 1).firstCursorPosition() if amount > 0: cellCursor.insertText("Credit", bodyCharFormat) else: cellCursor.insertText("Debit", bodyCharFormat) cellCursor = table.cellAt(row, 2).firstCursorPosition() cellCursor.setBlockFormat(rightBodyFormat) format = bodyCharFormat if amount < 0: format = redBodyCharFormat cellCursor.insertText("$ {0:,.2f}".format(float(amount)), format) row += 1 cursor.setPosition(mainFrame.lastPosition()) cursor.insertBlock(bodyFormat, bodyCharFormat) cursor.insertText("We hope to continue doing business " "with you,") cursor.insertBlock(bodyFormat, bodyCharFormat) cursor.insertText("Yours sincerely") cursor.insertBlock(bodyFormat) if page == len(self.statements): cursor.insertBlock(bodyFormat, bodyCharFormat) else: cursor.insertBlock(lastParaBodyFormat, bodyCharFormat) cursor.insertText("K. Longrey, Manager") page += 1 document.print_(self.printer) def printViaQPainter(self): dialog = QPrintDialog(self.printer, self) if not dialog.exec_(): return LeftMargin = 72 sansFont = QFont("Helvetica", 10) sansLineHeight = QFontMetrics(sansFont).height() serifFont = QFont("Times", 11) fm = QFontMetrics(serifFont) DateWidth = fm.width(" September 99, 2999 ") CreditWidth = fm.width(" Credit ") AmountWidth = fm.width(" W999999.99 ") serifLineHeight = fm.height() logo = QPixmap(":/logo.png") painter = QPainter(self.printer) pageRect = self.printer.pageRect() page = 1 for statement in self.statements: painter.save() y = 0 x = pageRect.width() - logo.width() - LeftMargin painter.drawPixmap(x, 0, logo) y += logo.height() + sansLineHeight painter.setFont(sansFont) painter.drawText(x, y, "Greasy Hands Ltd.") y += sansLineHeight painter.drawText(x, y, "New Lombard Street") y += sansLineHeight painter.drawText(x, y, "London") y += sansLineHeight painter.drawText(x, y, "WC13 4PX") y += sansLineHeight painter.drawText(x, y, QDate.currentDate().toString(DATE_FORMAT)) y += sansLineHeight painter.setFont(serifFont) x = LeftMargin for line in statement.address.split(", "): painter.drawText(x, y, line) y += serifLineHeight y += serifLineHeight painter.drawText(x, y, "Dear {0},".format(statement.contact)) y += serifLineHeight balance = statement.balance() painter.drawText(x, y, "The balance of your account is $ {0:,.2f}".format(float(balance))) y += serifLineHeight if balance < 0: painter.setPen(Qt.red) text = "Please remit the amount owing immediately." else: text = ("We are delighted to have done business " "with you.") painter.drawText(x, y, text) painter.setPen(Qt.black) y += int(serifLineHeight * 1.5) painter.drawText(x, y, "Transactions:") y += serifLineHeight option = QTextOption(Qt.AlignRight|Qt.AlignVCenter) for date, amount in statement.transactions: x = LeftMargin h = int(fm.height() * 1.3) painter.drawRect(x, y, DateWidth, h) painter.drawText( QRectF(x + 3, y + 3, DateWidth - 6, h - 6), date.toString(DATE_FORMAT), option) x += DateWidth painter.drawRect(x, y, CreditWidth, h) text = "Credit" if amount < 0: text = "Debit" painter.drawText( QRectF(x + 3, y + 3, CreditWidth - 6, h - 6), text, option) x += CreditWidth painter.drawRect(x, y, AmountWidth, h) if amount < 0: painter.setPen(Qt.red) painter.drawText( QRectF(x + 3, y + 3, AmountWidth - 6, h - 6), "$ {0:,.2f}".format(float(amount)), option) painter.setPen(Qt.black) y += h y += serifLineHeight x = LeftMargin painter.drawText(x, y, "We hope to continue doing " "business with you,") y += serifLineHeight painter.drawText(x, y, "Yours sincerely") y += serifLineHeight * 3 painter.drawText(x, y, "K. Longrey, Manager") x = LeftMargin y = pageRect.height() - 72 painter.drawLine(x, y, pageRect.width() - LeftMargin, y) y += 2 font = QFont("Helvetica", 9) font.setItalic(True) painter.setFont(font) option = QTextOption(Qt.AlignCenter) option.setWrapMode(QTextOption.WordWrap) painter.drawText( QRectF(x, y, pageRect.width() - 2 * LeftMargin, 31), "The contents of this letter are for information " "only and do not form part of any contract.", option) page += 1 if page <= len(self.statements): self.printer.newPage() painter.restore() if __name__ == "__main__": app = QApplication(sys.argv) form = Form() form.show() app.exec_()実行結果: 関連する推奨事項:
python3+PyQt5 は、マルチスレッドをサポートするページ インデクサー アプリケーションを実装します
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